Drainage structure and portable washing device
By integrating a drive motor and an adjustable water outlet drainage structure into a portable washing machine, the problems of limited functionality and manual rinsing after washing are solved, achieving automatic spin-drying and efficient drainage, thus improving the product's applicability and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZAIWAN TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-15
AI Technical Summary
Existing portable washing machines have limited functionality, require manual rinsing after washing, and are inconvenient to drain, making them unsuitable for use when traveling.
A drainage structure including a base and a drum is designed. The base contains a drive motor, and the washing and spin-drying functions are integrated through a sealed connection. The L-shaped drain pipe outlet has an adjustable height to ensure sealing and efficient drainage.
It achieves automatic spin-drying after washing, reduces rinsing difficulty, improves drainage efficiency, enhances the product's applicability and functional versatility, and is suitable for use in different scenarios.
Smart Images
Figure CN224243499U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of washing device technology, and in particular to a drainage structure and a portable washing device. Background Technology
[0002] As people's living standards continue to improve, they are becoming more particular about the washing of certain special clothing items, such as underwear, baby clothes, socks, and other frequently used small items. Currently, these items are mostly washed manually. To free people's hands, mini washing machines are becoming increasingly popular.
[0003] However, although mini washing machines on the market are smaller than regular washing machines, they are still relatively large and are generally used in home environments. They are easy to store after use. For washing machines that can be taken out, the functions are usually simple. When using them, you only need to place the tub on the stand, and then the stand will drive the impeller inside the tub to rotate forward and backward to wash. After washing, the tub is removed to pour out the water and rinse manually, which makes rinsing difficult. Utility Model Content
[0004] This utility model provides a portable washing device that can spin-dry after washing to increase the speed of subsequent rinsing and reduce the difficulty of rinsing.
[0005] This utility model discloses a drainage structure, including: a base and a cylindrical body detachably connected to the base. A drive motor is installed inside the base, and a rotating component is rotatably connected to the base, with the rotating component drivingly connected to the drive motor. When the base is connected to the cylindrical body, the base and the cylindrical body are sealed together. The cylindrical body is used to hold items to be washed. A first drain outlet communicating with the cylindrical body is provided on the base, and a second drain outlet is provided on the side wall of the base. The first and second drain outlets are connected by a connecting pipe. An L-shaped drain pipe is rotatably connected to the second drain outlet. A dewatering hole is provided on the rotating component. When the drive motor drives the rotating component to reciprocate at a first speed, it can perform a washing operation on the items to be washed. When the drive motor drives the rotating component to rotate in the same direction at a second speed, water in the items to be washed can be ejected from the dewatering hole. The height of the outlet of the L-shaped drain pipe can be rotated to be higher than the height of the cylindrical body or lower than the height of the second drain outlet.
[0006] Optionally, the rotating component includes a circular base plate and an annular sidewall disposed on the edge of the circular base plate, the annular sidewall having a gap with the inner wall of the cylinder, and the dewatering hole being located on the annular sidewall and the circular base plate.
[0007] Optionally, the circular base plate has a plurality of first protrusions on the side opposite to the base, the first protrusions including smoothly transitioned arcuate surfaces, and the first protrusions extending in a straight line or a curve; or, the circular base plate has a plurality of first protrusions on the side opposite to the base, and a protruding post is provided at the center of the circular base plate, and a plurality of second protrusions are provided around the outer ring of the protruding post, the first protrusions and the second protrusions including smoothly transitioned arcuate surfaces, and the first protrusions and the second protrusions extending in a straight line or a curve.
[0008] Optionally, the circular base plate has a first protruding ridge along the circumferential direction on one side facing the base, and the base has a second protruding ridge corresponding to the first protruding ridge. The first protruding ridge and the second protruding ridge can abut against each other, and the second protruding ridge is a plurality of ridges spaced apart along the circumferential direction.
[0009] Optionally, the base includes a seat body with a cavity and a top cover connected to the seat body. The drive motor is connected to the top cover, and the output shaft of the drive motor extends out of the top cover. A seal is provided between the output shaft and the top cover. The first drain outlet and the second protruding ridge are located on the top cover, and the second drain outlet is located on the seat body.
[0010] Optionally, the top cover is provided with a plurality of first connecting posts, and the base body is provided with a plurality of second connecting posts, the first connecting posts and the second connecting posts being connected by a connector; the top cover is also provided with an annular flange corresponding to the cylinder body, the two ends of the cylinder body are respectively provided with a first opening and a second opening, the end of the cylinder body with the first opening is provided with an external thread, the annular flange is provided with an internal thread corresponding to the external thread, and the cylinder body is threadedly connected to the annular flange; the base is provided with an annular sealing gasket, and when the cylinder body is connected to the base, the first opening abuts against the annular sealing gasket.
[0011] Optionally, the annular sealing gasket has multiple locking protrusions on the side facing the base, and the first connecting post has a hollow structure, with each of the multiple locking protrusions corresponding to and holding the multiple first connecting posts.
[0012] Optionally, the first drain outlet includes a recess on the top cover and a first connector communicating with the recess; the second drain outlet includes a second connector located inside the seat and a third connector located outside the seat, the first connector and the second connector are connected through the connecting pipe, the third connector is rotatably connected to the L-shaped drain pipe, and a sealing ring is provided between the third connector and the L-shaped drain pipe.
[0013] Optionally, a stepped groove is provided at one end of the cylinder with the second opening, the stepped groove being located at the edge of the second opening, and a cover being fastened inside the stepped groove.
[0014] This utility model also discloses a portable washing device, including a drainage structure as described in any one of the above, wherein a storage battery is provided in the base of the drainage structure, and the storage battery is electrically connected to a drive motor in the base.
[0015] The beneficial effects of the drainage structure and portable washing device provided in this embodiment of the utility model are as follows: When the base is connected to the drum, the two adopt a sealed connection method. This sealing design ensures that water inside the drum will not leak during washing and spin-drying, guaranteeing the sealing performance and safety of the entire drainage structure. Simultaneously, the adjustable height design of the L-shaped drain outlet allows for effective prevention of water leakage when the outlet height is rotated above the drum height, ensuring normal washing operations. When the outlet height is lower than the second drain outlet, wastewater can be discharged quickly and smoothly, improving drainage efficiency. This design not only enhances the practicality of the drainage structure but also further improves the product's applicability, enabling it to meet the needs of different users in different scenarios. This drainage structure integrates washing and spin-drying functions by driving a motor to rotate the components, enriching the product's functionality compared to the limited functionality of traditional portable washing machines. Users no longer need to manually rinse after washing; they can perform spin-drying after washing to increase the speed of subsequent rinsing, reduce rinsing difficulty, and perform another spin-drying operation after rinsing, which is beneficial for drying efficiency. Attached Figure Description
[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:
[0017] Figure 1 This is a schematic diagram of the drainage structure provided in an embodiment of the present utility model;
[0018] Figure 2 This is a cross-sectional schematic diagram of the drainage structure provided in this embodiment of the utility model;
[0019] Figure 3 This is an exploded view of the base provided in an embodiment of the present utility model;
[0020] Figure 4 This is one of the structural schematic diagrams of the rotating component provided in this embodiment of the utility model;
[0021] Figure 5 This is the second schematic diagram of the rotating component provided in this embodiment of the utility model;
[0022] Figure 6 This is the third structural schematic diagram of the rotating component provided in this embodiment of the utility model;
[0023] Figure 7 This is a schematic diagram of the top cover provided in an embodiment of the present utility model.
[0024] The labels for the attached figures are as follows:
[0025] 100. Drainage structure; 110. Base; 112. First drain outlet; 1122. Recess; 1124. First connector; 114. Second drain outlet; 1142. Second connector; 1144. Third connector; 115. Annular sealing gasket; 116. Second protruding ridge; 117. Seat body; 1172. Second connecting post; 118. Top cover; 1182. First connecting post; 1184. Annular flange; 1 19. Sealing element; 120. Cylinder body; 122. First opening; 124. Second opening; 126. Stepped groove; 128. Cover body; 130. Drive motor; 140. Rotating component; 142. Dewatering hole; 144. Circular base plate; 1442. First protruding ridge; 146. Annular sidewall; 148. First protrusion; 149. Protruding column; 1492. Second protrusion; 150. L-shaped drain pipe; 152. Water outlet. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0027] like Figure 1 , Figure 2 and Figure 3As shown, this utility model embodiment provides a drainage structure 100, including: a base 110 and a cylindrical body 120 detachably connected to the base 110. A drive motor 130 is disposed inside the base 110, and a rotating component 140 is rotatably connected to the base 110, and the rotating component 140 is drivenly connected to the drive motor 130. When the base 110 is connected to the cylindrical body 120, the base 110 and the cylindrical body 120 are sealed together. The cylindrical body 120 is used to place items to be washed. A first drain outlet 112 communicating with the cylindrical body 120 is provided on the base 110, and a second drain outlet 114 is provided on the side wall of the base 110. The first drain outlet 112 and the second drain outlet 114 are connected by a connecting pipe. An L-shaped drain pipe 150 is rotatably connected to the second drain outlet 114. A dewatering hole 142 is provided on the rotating part 140. When the drive motor 130 drives the rotating part 140 to rotate back and forth at a first speed, it can perform a washing operation on the items to be washed. When the drive motor 130 drives the rotating part 140 to rotate in the same direction at a second speed, the water in the items to be washed can be ejected from the dewatering hole 142. The height of the outlet 152 of the L-shaped drain pipe 150 can be rotated to be higher than the height of the drum body 120 or lower than the height of the second drain outlet 114.
[0028] Specifically, the main function of the drum 120 is to hold the items to be washed, serving as the carrying space for the entire washing process. The drive motor 130, as a key component for power output in the entire drainage structure 100, provides power support for subsequent washing and spin-drying operations. A rotating component 140 is rotatably connected to the base 110. By driving the drive motor 130, the power of the drive motor 130 can be effectively transmitted to the rotating component 140. When the drive motor 130 drives the rotating component 140 to reciprocate at a first speed, it can wash the items placed in the drum 120. When the drive motor 130 drives the rotating component 140 to rotate in the same direction at a second speed, under the action of centrifugal force, the water in the items can be ejected from the spin-drying hole 142, thus achieving the spin-drying function.
[0029] For drainage, the base 110 is provided with a first drain port 112 that communicates with the cylinder 120, and a second drain port 114 is provided on the side wall of the base 110. The first drain port 112 and the second drain port 114 are connected by a connecting pipe to form a complete drainage channel. The connecting pipe can be a flexible hose to reduce connection difficulty. An L-shaped drain pipe 150 is rotatably connected to the second drain port 114. The special feature of this L-shaped drain pipe 150 is that the height of its outlet 152 can be adjusted by rotation. It can be rotated to a height higher than the cylinder 120 or lower than the second drain port 114. This adjustable design provides great flexibility for subsequent drainage and rinsing operations.
[0030] The drainage structure 100 provided in this embodiment uses a sealed connection between the base 110 and the drum 120. This sealing design ensures that water inside the drum 120 will not leak during washing and spin-drying, guaranteeing the sealing performance and safety of the entire drainage structure 100. Simultaneously, the adjustable height of the outlet 152 of the L-shaped drain pipe 150 effectively prevents water from flowing out of the drum 120 when the outlet 152 is higher than the drum 120, ensuring normal washing operations. When the outlet 152 is lower than the second drain outlet 114, wastewater can be discharged quickly and smoothly, improving drainage efficiency. This design not only enhances the practicality of the drainage structure 100 but also further improves the product's applicability, enabling it to meet the needs of different users in different scenarios. The drainage structure 100 integrates washing and spin-drying functions by driving the rotating component 140 via the drive motor 130, enriching the product's functionality compared to the limited functionality of traditional portable washing machines. Users do not need to manually rinse after washing. They can spin dry after washing to increase the speed of subsequent rinsing, reduce the difficulty of rinsing, and spin dry again after rinsing, which is beneficial to drying efficiency.
[0031] like Figure 2 and Figure 4 As shown, the rotating component 140 includes a circular base plate 144 and an annular sidewall 146 disposed on the edge of the circular base plate 144. The annular sidewall 146 has a gap with the inner wall of the cylinder 120, and the dewatering hole 142 is located on the annular sidewall 146 and the circular base plate 144.
[0032] Specifically, the existence of this gap ensures smooth rotation of the rotating component 140 within the drum 120, preventing friction and interference with the drum 120. It also provides space for water flow and circulation, contributing to improved washing and dehydration effects. The dehydration holes 142 are located on the annular sidewall 146 and the circular base plate 144. This distribution allows water to be ejected from the items being washed from multiple directions during dehydration, improving uniformity and efficiency. By strategically placing the dehydration holes 142 on the annular sidewall 146 and the circular base plate 144, centrifugal force can be fully utilized to eject as much water as possible from the items being washed, thus achieving better dehydration results. The items being washed include small items such as socks, towels, or underwear.
[0033] like Figure 4 As shown, a plurality of first protrusions 148 are formed on the side of the circular base plate 144 away from the base 110. The first protrusions 148 include a smoothly transitioned arc-shaped surface, and the first protrusions 148 extend in a straight line or a curve.
[0034] By employing the above method, the smooth, rounded curved surface design of the first protrusion 148 reduces wear and tear on the items to be washed during the washing process, preventing damage to clothes and items awaiting washing due to the sharp edges of the protrusion. Simultaneously, the straight or curved extension of the protrusion design allows for better agitation of the water flow and items to be washed when the rotating component 140 rotates, enhancing the washing effect.
[0035] like Figure 5 As shown, in another structural form of the rotating member 140 provided in this application embodiment, a plurality of first protrusions 148 are formed on the side of the circular base plate 144 away from the base 110, and a protruding post 149 is provided at the center of the circular base plate 144. A plurality of second protrusions 1492 are provided on the outer ring of the protruding post 149. The first protrusions 148 and the second protrusions 1492 include arc-shaped curved surfaces with smooth transitions, and the first protrusions 148 and the second protrusions 1492 extend in a straight line or in a curve.
[0036] Specifically, multiple first protrusions 148 are formed on the side of the circular base plate 144 opposite to the base 110, and a protruding post 149 is provided at the center of the circular base plate 144. Multiple second protrusions 1492 are provided around the outer ring of the protruding post 149. The first protrusions 148 and the second protrusions 1492 also include smoothly transitioned arc-shaped surfaces and extend in a straight line or curve. This combined structure further increases the agitation methods and paths of water flow and items to be washed, making the washing process more diversified, enabling more comprehensive cleaning of all parts of the items to be washed, and improving the cleanliness of the wash.
[0037] like Figure 3 and Figure 6 As shown, a first protruding ridge 1442 is provided on the side of the circular base plate 144 facing the base 110 along the circumferential direction, and a second protruding ridge 116 corresponding to the first protruding ridge 1442 is provided on the base 110. The first protruding ridge 1442 and the second protruding ridge 116 can abut against each other, and there are multiple second protruding ridges 116 spaced apart along the circumferential direction.
[0038] Specifically, when the rotating component 140 rotates smoothly, the first protruding ridge 1442 and the second protruding ridge 116 will not contact each other. During washing or spin-drying, if the center of gravity of the items to be washed deviates, the rotating component 140 will tilt. At this time, it can be corrected by the contact between the first protruding ridge 1442 and the second protruding ridge 116. During the correction process, the items to be washed will be shaken and automatically adjust their center of gravity, which is conducive to the smooth operation of the rotating component 140. Through the cooperation of the first protruding ridge 1442 and the second protruding ridge 116, the stability and reliability of the rotation of the rotating component 140 are effectively improved. Stable rotation ensures the normal operation of the washing and spin-drying process, avoids tilting of the rotating component 140 due to the influence of the items to be washed, and helps to ensure the washing and spin-drying effect.
[0039] like Figure 3 As shown, the base 110 includes a seat body 117 with a cavity and a top cover 118 connected to the seat body 117. The drive motor 130 is connected to the top cover 118, and the output shaft of the drive motor 130 extends out of the top cover 118. A sealing element 119 is provided between the output shaft and the top cover 118. The first drain port 112 and the second protrusion 116 are located on the top cover 118, and the second drain port 114 is located on the seat body 117.
[0040] Specifically, the base 110 consists of a cavity-shaped seat body 117 and a top cover 118 connected to the seat body 117. This split design facilitates the installation and maintenance of the internal components of the base 110. A drive motor 130 is connected to the top cover 118, and the output shaft of the drive motor 130 extends out of the top cover 118. A seal 119 is provided between the output shaft and the top cover 118 to ensure the airtightness of the base 110 and prevent water from entering the base 110 during use. The first drain outlet 112 and the second protrusion 116 are located on the top cover 118, and the second drain outlet 114 is located on the seat body 117. This layout design makes the connection of the drainage channels more reasonable, ensuring that sewage can be smoothly discharged from the cylinder 120. By rationally distributing components with different functions in different parts of the base 110, the internal structure of the base 110 is optimized, and the overall performance and reliability of the drainage structure 100 are improved.
[0041] like Figure 2 and Figure 3 As shown, the top cover 118 is provided with a plurality of first connecting posts 1182, and the base 117 is provided with a plurality of second connecting posts 1172. The first connecting posts 1182 and the second connecting posts 1172 are connected by a connector. The top cover 118 is also provided with an annular flange 1184 corresponding to the cylinder 120. The two ends of the cylinder 120 are respectively provided with a first opening 122 and a second opening 124. The end of the cylinder 120 with the first opening 122 is provided with an external thread, and the annular flange 1184 is provided with an internal thread corresponding to the external thread. The cylinder 120 is threadedly connected to the annular flange 1184. The base 110 is provided with an annular sealing gasket 115. When the cylinder 120 is connected to the base 110, the first opening 122 abuts against the annular sealing gasket 115.
[0042] Specifically, inside the base 110, the top cover 118 is provided with multiple first connecting posts 1182, and the seat body 117 is provided with multiple second connecting posts 1172. The first connecting posts 1182 and the second connecting posts 1172 are connected by a connector. This connection method allows the top cover 118 and the seat body 117 to be firmly connected together, ensuring the stability of the base 110 structure. The connector can be a screw to facilitate the connection of the first connecting posts 1182 and the second connecting posts 1172. Regarding the connection between the base 110 and the cylinder 120, the top cover 118 is provided with an annular flange 1184 corresponding to the cylinder 120. One end of the cylinder 120 with the first opening 122 is provided with an external thread, and the annular flange 1184 is provided with an internal thread corresponding to the external thread. The cylinder 120 and the annular flange 1184 are connected by a threaded connection. To ensure the airtightness of the connection, an annular sealing gasket 115 is provided on the base 110. When the cylinder 120 is connected to the base 110, the first opening 122 abuts against the annular sealing gasket 115 to prevent water from leaking from the connection.
[0043] like Figure 3 As shown, the annular sealing gasket 115 has multiple locking protrusions on the side facing the base 110, and the first connecting post 1182 is a hollow structure. The multiple locking protrusions correspond one-to-one with the multiple first connecting posts 1182 for locking.
[0044] Specifically, the engagement of the snap-fit protrusion with the hollow first connecting post 1182 prevents accidental misalignment of the annular sealing gasket 115 during the threaded connection between the cylinder 120 and the base 110, thus improving the installation stability and reliability of the annular sealing gasket 115. A stable annular sealing gasket 115 can better perform its sealing function, effectively preventing water leakage from the connection between the base 110 and the cylinder 120, further enhancing the sealing and waterproof performance of the drainage structure 100.
[0045] like Figure 2 , Figure 3 and Figure 7 As shown, the first drain outlet 112 includes a recess 1122 provided on the top cover 118, and a first connector 1124 communicating with the recess 1122; the second drain outlet 114 includes a second connector 1142 located inside the seat 117 and a third connector 1144 located outside the seat 117. The first connector 1124 and the second connector 1142 are connected by a connecting pipe. The third connector 1144 is rotatably connected to the L-shaped drain pipe 150, and a sealing ring is provided between the third connector 1144 and the L-shaped drain pipe 150.
[0046] Specifically, the recess 1122 is designed to collect water, facilitating the smooth flow of sewage into the first connector 1124. The second drain outlet 114 includes a second connector 1142 located inside the base 117 and a third connector 1144 located outside the base 117. The first connector 1124 and the second connector 1142 are connected by a connecting pipe. The third connector 1144 is rotatably connected to the L-shaped drain pipe 150, and a sealing ring is provided between the third connector 1144 and the L-shaped drain pipe 150 to ensure the sealing of the connection. In practical applications, an annular groove can be provided on the third connector 1144, and the sealing ring can be fitted onto the annular groove. In this case, when the third connector 1144 is connected to the L-shaped drain pipe 150, misalignment of the sealing ring can be avoided, which helps to improve the reliability of the connection.
[0047] like Figure 1 As shown, a stepped groove 126 is provided at one end of the cylinder 120 where the second opening 124 is provided. The stepped groove 126 is located at the edge of the second opening 124, and a cover 128 is fastened inside the stepped groove 126.
[0048] Specifically, a stepped groove 126 is provided at one end of the drum 120 where the second opening 124 is located. The stepped groove 126 is located at the edge of the second opening 124, and a cover 128 is fastened inside the stepped groove 126. The cover 128 can seal the drum 120 when it is not in use, preventing dust, debris, etc. from entering the drum 120 and keeping the inside of the drum 120 clean. At the same time, during the washing process, the cover 128 can also play a certain protective role, preventing water from splashing out from the second opening 124.
[0049] This utility model also discloses a portable washing device, including the drainage structure 100 in the aforementioned embodiments. A storage battery is also housed within the base 110 of the drainage structure 100, and the battery is electrically connected to a drive motor 130 within the base 110. The storage battery eliminates the reliance on an external power source for the portable washing device, allowing users to use it in locations without power outlets, such as outdoors, or where it is inconvenient to plug in a power outlet, greatly expanding the product's usage scenarios and applicability. Other beneficial effects of the portable washing device have been described in the aforementioned embodiments and will not be repeated here.
[0050] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.
Claims
1. A drainage structure, characterized in that, include: The system includes a base and a cylindrical body detachably connected to the base. A drive motor is installed inside the base, and a rotating component is rotatably connected to the base and driven by the drive motor. When the base is connected to the cylindrical body, the base and the cylindrical body are sealed together. The cylindrical body is used to hold items to be washed. The base has a first drain outlet communicating with the cylindrical body, and a second drain outlet is located on the side wall of the base. The first and second drain outlets are connected by a connecting pipe. An L-shaped drain pipe is rotatably connected to the second drain outlet. The rotating component has a dewatering hole. When the drive motor drives the rotating component to reciprocate at a first speed, it can perform a washing operation on the items to be washed. When the drive motor drives the rotating component to rotate in the same direction at a second speed, water in the items to be washed can be ejected from the dewatering hole. The height of the outlet of the L-shaped drain pipe can be rotated to be higher than the height of the cylindrical body or lower than the height of the second drain outlet.
2. The drainage structure according to claim 1, characterized in that, The rotating component includes a circular base plate and an annular sidewall disposed on the edge of the circular base plate. The annular sidewall has a gap with the inner wall of the cylinder. The dewatering hole is located on the annular sidewall and the circular base plate.
3. The drainage structure according to claim 2, characterized in that, The circular base plate has multiple first protrusions on the side opposite to the base. Each first protrusion includes a smoothly transitioned arcuate surface, and extends in a straight line or a curve, or... The circular base plate has multiple first protrusions on the side opposite to the base, and a protruding post is provided at the center of the circular base plate. Multiple second protrusions are provided around the outer ring of the protruding post. The first protrusions and the second protrusions include smoothly transitioned arc-shaped surfaces, and the first protrusions and the second protrusions extend in a straight line or a curve.
4. The drainage structure according to claim 3, characterized in that, The circular base plate has a first protruding ridge along the circumferential direction on one side facing the base, and the base has a second protruding ridge corresponding to the first protruding ridge. The first protruding ridge and the second protruding ridge can abut against each other, and there are multiple second protruding ridges spaced apart along the circumferential direction.
5. The drainage structure according to claim 4, characterized in that, The base includes a seat body with a cavity and a top cover connected to the seat body. The drive motor is connected to the top cover, and the output shaft of the drive motor extends out of the top cover. A seal is provided between the output shaft and the top cover. The first drain outlet and the second protruding ridge are located on the top cover, and the second drain outlet is located on the seat body.
6. The drainage structure according to claim 5, characterized in that, The top cover is provided with a plurality of first connecting posts, and the base is provided with a plurality of second connecting posts. The first connecting posts and the second connecting posts are connected by a connector. The top cover is also provided with an annular flange corresponding to the cylinder. The two ends of the cylinder are respectively provided with a first opening and a second opening. The end of the cylinder with the first opening is provided with an external thread. The annular flange is provided with an internal thread corresponding to the external thread. The cylinder is threadedly connected to the annular flange. The base is provided with an annular sealing gasket. When the cylinder is connected to the base, the first opening abuts against the annular sealing gasket.
7. The drainage structure according to claim 6, characterized in that, The annular sealing gasket has multiple locking protrusions on one side facing the base. The first connecting post is a hollow structure, and the multiple locking protrusions correspond one-to-one with the multiple first connecting posts.
8. The drainage structure according to any one of claims 5-7, characterized in that, The first drain outlet includes a recess on the top cover and a first connector communicating with the recess; the second drain outlet includes a second connector located inside the seat and a third connector located outside the seat, the first connector and the second connector are connected by the connecting pipe, the third connector is rotatably connected to the L-shaped drain pipe, and a sealing ring is provided between the third connector and the L-shaped drain pipe.
9. The drainage structure according to claim 6 or 7, characterized in that, The cylindrical body has a stepped groove at one end with the second opening, the stepped groove is located at the edge of the second opening, and a cover is fastened inside the stepped groove.
10. A portable washing device, characterized in that, The drainage structure includes any one of claims 1-9, wherein a storage battery is further provided in the base of the drainage structure, and the storage battery is electrically connected to a drive motor in the base.