Drying device and toilet bowl

Abstract

The application discloses a drying device and a toilet bowl. The drying device comprises a shell, a drying assembly, an extensible pipe and a driving assembly for driving the extensible pipe to move. The shell is provided with a receiving cavity and an opening communicating with the receiving cavity. The drying assembly is received in the receiving cavity and is used for supplying air to the opening. The extensible pipe is installed in the shell and has a closed end and an open end communicating with the receiving cavity. The open end is close to the drying assembly relative to the closed end. The closed end is arranged in a bent mode relative to the open end. The direction in which the closed end is bent relative to the open end is defined as a first direction. In the direction opposite to the first direction, the extensible pipe is provided with an air outlet close to the closed end. The extensible pipe is used for guiding the movement of the air. The driving assembly is connected with the extensible pipe and is installed in the shell, so that the extensible pipe can be extended out of the opening or retracted into the receiving cavity. In this way, the extensible pipe can be extended or retracted relative to the shell under the action of the driving assembly, so that different air outlet positions can be met, and the use is more convenient.

Description

Technical Field

[0001] The present invention relates to the field of smart bathroom products, and in particular to a drying device and a toilet. Background Technology

[0002] As people's living standards improve, more and more convenient furniture and household items are being designed and put into use, especially toilets. Generally, smart toilets on the market, in addition to traditional toilets, also include a bidet sprayer. The bidet sprayer can be controlled via a button panel on the toilet and is used for posterior or feminine wash. After being sprayed by the bidet sprayer, the user's buttocks are often moist, so a drying device is often included.

[0003] Currently, the air ducts and housings of drying devices on the market are too fixed, the air outlet position is relatively simple, the air outlet effect is not good, it cannot meet the needs of users of different body types, and it cannot be adjusted according to the user's habits, which causes inconvenience. Summary of the Invention

[0004] To address the aforementioned technical problems, embodiments of the present invention provide a drying device and a toilet.

[0005] The technical solutions adopted by the embodiments of the present invention to solve their technical problems are as follows:

[0006] A drying device includes a housing, a drying assembly, a telescopic tube, and a drive assembly. The housing has a receiving cavity and an opening communicating with the receiving cavity. The drying assembly is installed in the housing and received within the receiving cavity, and is used to supply air to the opening. The telescopic tube is installed in the housing and has a closed end and an open end communicating with the receiving cavity. The open end is closer to the drying assembly relative to the closed end, and the closed end is bent relative to the open end. The direction in which the closed end is bent relative to the open end is defined as a first direction. Along a direction opposite to the first direction, the telescopic tube has an air outlet, which is located close to the closed end. The telescopic tube is used to guide the movement of air. The drive assembly is connected to the telescopic tube and is installed in the housing. The drive assembly is used to drive the telescopic tube to move so that the telescopic tube can extend or retract through the opening into the receiving cavity.

[0007] Optionally, the drive assembly includes a drive motor, a rack, and a gear. The drive motor is mounted on the housing, and both the rack and the gear are movably mounted within the housing. The output shaft of the drive motor is connected to the gear, the gear meshes with the rack, and the rack is connected to the telescopic tube.

[0008] When the drive motor drives the gear to rotate, the rack moves with the rotation of the gear to drive the telescopic tube to extend or retract into the receiving cavity.

[0009] Optionally, the housing is provided with a limiting guide groove, and the rack is disposed in the limiting guide groove; the telescopic tube includes a tube body and a connecting block connected to the tube body, the tube body has an open end and a closed end, the connecting block is close to the open end, and the connecting block is partially disposed in the limiting guide groove and connected to the rack.

[0010] Optionally, the rack has elastic deformation properties, the limiting guide groove includes a straight groove segment and an arcuate groove segment connected to the straight groove segment, and the rack is configured such that when the drive motor drives the telescopic tube to retract into the receiving cavity, the portion of the rack located in the arcuate groove segment can be bent and deformed.

[0011] Optionally, the connecting block includes a connecting portion and a guide portion connected to the connecting portion. The connecting portion is connected to the tube body. The guide portion includes a side surface and a bottom surface near the tube body. The side surface and the bottom surface are disposed adjacent to each other. The guide portion has a side edge that protrudes relative to the side surface. The side edge is used to contact the housing line.

[0012] Optionally, the housing is provided with an inner protrusion, a first protrusion, and a second protrusion at the opening. The first protrusion and the second protrusion are spaced apart and disposed on the same side of the inner protrusion, and the first protrusion and the second protrusion together support the telescopic tube.

[0013] Optionally, the inner convex edge includes an inclined portion, and the first protrusion and the second protrusion are disposed opposite to the inclined portion, and the inclined portion is in contact with the wall surface of the telescopic tube.

[0014] Optionally, the drying device further includes a temperature sensor mounted on the housing, the temperature sensor being used to detect the temperature inside the housing.

[0015] Optionally, the drying assembly includes a drying fan and a heating element. The drying fan is housed within the housing cavity, and the heating element is disposed at the air outlet of the drying fan. The heating element is used to heat the air supplied by the drying fan.

[0016] Optionally, the drying assembly further includes a buffer that surrounds the periphery of the air outlet of the drying fan.

[0017] Optionally, the direction from the closed end toward the open end and perpendicular to the first direction is defined as the second direction, and the direction perpendicular to both the first and second directions is defined as the third direction. When viewed along the first direction, the area of ​​the air outlet is S1, and the cross-sectional area of ​​the telescopic tube in the third direction is S2, wherein S1 ≥ 70%S2.

[0018] Optionally, the telescopic pipe includes a pipe body, the pipe body includes a pipe cap and a pipe main body connected to the pipe cap, the pipe cap is provided with the air outlet, and the side edge of the pipe main body is provided with a notch communicating with the air outlet. Along the first direction, the distance between the notch and the pipe cap is h, where h satisfies 2.25mm < h < 2.35mm.

[0019] Optionally, a first hook angle is formed between the side wall of the air outlet near the closed end and the closed end, and a protrusion is provided on the inner wall of the pipe body at the notch. A second hook angle is formed between the protrusion and the inner wall surface of the pipe body. Both the first hook angle and the second hook angle can be used to change the direction of the airflow inside the pipe body.

[0020] The technical solutions adopted by the embodiments of the present invention to solve their technical problems are as follows:

[0021] A toilet including the aforementioned drying device.

[0022] The beneficial effects of the embodiments of the present invention are as follows: The drying device provided in this application includes a housing, a drying component, a telescopic tube, and a driving component. The housing has a receiving cavity and an opening communicating with the receiving cavity. The drying component is installed in the housing and received within the receiving cavity, and is used to supply air to the opening. The telescopic tube is installed inside the housing and has a closed end and an open end communicating with the receiving cavity. The open end is closer to the drying component than the closed end, and the closed end is bent relative to the open end. The direction in which the closed end is bent relative to the open end is defined as a first direction. Along a direction opposite to the first direction, the telescopic tube has an air outlet, which is located close to the closed end. The telescopic tube is used to guide the movement of air. The driving component is connected to the telescopic tube and is installed in the housing. The driving component is used to drive the telescopic tube to move so that the telescopic tube can extend or retract into the receiving cavity through the opening. Thus, the telescopic tube can extend and retract relative to the housing under the action of the driving component to meet different air outlet positions, resulting in high drying efficiency and convenient use. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0024] Figure 1 This is a schematic diagram of the structure of a drying apparatus according to one embodiment of this application;

[0025] Figure 2 yes Figure 1 Exploded structural diagram;

[0026] Figure 3 yes Figure 2 A schematic diagram showing the further decomposition of the middle part of the structure;

[0027] Figure 4 yes Figure 2 Exploded view of the structure of the telescopic tube and rack;

[0028] Figure 5 This is a schematic diagram showing the state of the telescopic tube when it is retracted into the cavity;

[0029] Figure 6 This is a schematic diagram showing the telescopic tube extending out of the receiving cavity;

[0030] Figure 7 This is a front view of the casing;

[0031] Figure 8 This is a graph showing the relationship between air volume and air pressure under different ratios of the air outlet area S1 and the cross-sectional area S2 of the telescopic pipe of the drying device of this application.

[0032] Figure 9 This is a schematic diagram of the telescopic tube of this application;

[0033] Figure 10 yes Figure 9 Interface diagram of the telescopic tube;

[0034] Figure 11 yes Figure 9 A schematic diagram after being cut along the symmetry center plane M;

[0035] Figure 12 It is a diagram of the airflow velocity in a simulated state of the drying device when the first hook angle and the second hook angle are set;

[0036] Figure 13 This is a diagram of the airflow velocity in a simulated state of the drying device when the first and second hook angles are not set;

[0037] Figure 14 This is a flow rate diagram of the airflow from the drying device when the distance between the notch and the pipe cover is 2.25 mm.

[0038] Figure 15 This is a flow velocity diagram of the air delivered by the drying device when the distance between the notch and the pipe cover is 2.32 mm;

[0039] Figure 16This is a flow rate diagram of the airflow from the drying device when the distance between the notch and the pipe cover is 3.3 mm.

[0040] In the diagram: 100, Drying device; 10, Housing; 20, Drying assembly; 30, Drive assembly; 40, Telescopic tube; 101, Receiving cavity; 102, Opening; 401, Closed end; 402, Open end; 403, Air outlet; 404, Through hole; 11, First sub-housing; 12, Second sub-housing; 21, Drying fan; 22, Heating element; 211, Positioning hole; 13, Guide plate; 14, Positioning protrusion; 15, Limiting protrusion; 106, Through port; 31, Drive motor; 32. 33. Rack; 16. Gear; 16. Limiting guide groove; 161. Straight groove segment; 162. Arc groove segment; 41. Tube body; 42. Connecting block; 421. Connecting part; 422. Guide part; 4221. Bayonet; 321. Locking block; 4222. Side; 4223. Bottom surface; 4224. Side edge; 103. Inner protrusion; 104. First protrusion; 105. Second protrusion; 1031. Inclined part; 50. Temperature sensor; 60. Buffer; 17. Opening groove; 18. Elastic buckle. Detailed Implementation

[0041] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0043] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] like Figure 1-2 As shown, a drying apparatus 100 provided in one embodiment of this application includes a housing 10, a drying assembly 20, a drive assembly 30, and a telescopic tube 40. The housing 10 has a receiving cavity 101 and an opening 102 communicating with the receiving cavity 101. The drying assembly 20 is installed in the housing 10 and received within the receiving cavity 101, and the drying assembly 20 is used to supply air to the opening 102. The drive assembly 30 is installed in the housing 10 and connected to the telescopic tube 40, and the drive assembly 30 is used to drive the telescopic tube 40 to move so that the telescopic tube 40 can extend or retract into the receiving cavity 101 through the opening 102.

[0045] The telescopic tube 40 has a closed end 401 and an open end 402 communicating with the receiving cavity 101. The open end 402 is closer to the drying assembly 20 than the closed end 401, and the closed end 401 is bent relative to the open end 402. Understandably, the telescopic tube 40 is a tubular body with one end open and the other closed. Its shape can be circular or non-circular, depending on the needs. For example, the telescopic tube 40 is a hollow, elongated tube structure with a rectangular cross-section.

[0046] Define the direction in which the closed end 401 bends relative to the open end 402 as the first direction X. Along the direction opposite to the first direction X, the telescopic tube 40 is provided with an air outlet 403, which is located near the closed end 401. When the telescopic tube 40 extends out of the receiving cavity 101, the telescopic tube 40 can be used to guide the movement of air and blow it out at the air outlet 403.

[0047] Thus, the telescopic tube 40 can extend and retract relative to the housing 10 under the action of the drive assembly 30 to meet different air outlet positions, which helps to improve drying efficiency and is more convenient to use. At the same time, the air outlet 403 is set close to the closed end 401, and the closed end 401 is bent relative to the open end 402, which ensures that there is an appropriate distance between the air outlet 403 and the toilet seat. Compared with the solution of using a straight tube structure for the telescopic tube 40, it reduces the risk of excessively high air temperature caused by the distance between the air outlet 403 and the toilet seat being too small, and reduces the risk of burning the user's buttocks due to excessively high air temperature.

[0048] Understandably, the shape of the air outlet 403 is not limited and can be set as needed, for example, it can be rectangular, trapezoidal or elliptical. Furthermore, the telescopic tube 40 is provided with a through hole 404 near the closed end 401. The through hole 404 is located below the air outlet 403 in the first direction X, which facilitates the flow of liquid entering from the air outlet 403 through the through hole 404, reducing the risk of liquid flowing into the housing 10 along the telescopic tube 40.

[0049] In some embodiments, the housing 10 includes a first sub-housing 11 and a second sub-housing 12, which are detachably connected to enclose a receiving cavity 101 and an opening 102 communicating with the receiving cavity 101. The first sub-housing 11 and the second sub-housing 12 can be connected together along the thickness direction of the housing 10 to form the housing 10, or they can be connected together perpendicular to the thickness direction of the housing 10. It should be understood that the first sub-housing 11 and the second sub-housing 12 can be connected by a snap-fit, by bolts or other connecting components, or even by magnetic attraction; the specific connection method is not limited.

[0050] In some embodiments, the drying assembly 20 includes a drying fan 21 and a heating element 22, both housed within a receiving cavity 101. The heating element 22 is positioned at the air outlet 403 of the drying fan 21 and is used to heat the air supplied by the drying fan 21, ensuring that the air blown towards the opening 102 is warm. In this embodiment, the heating element 22 is a heating wire frame, consisting of a frame formed by connecting multiple heating plates and a diverter plate intersecting in the middle of the frame. The diverter plate helps to distribute the air blown by the drying fan 21, facilitating a uniform supply of air to the opening 102. In practical use, the heating wire frame heats up after being energized, and the air blown by the drying fan 21 is heated after passing through the heating wire frame, thus enabling the drying assembly 20 to supply warm air to the opening 102. It should be understood that the heating element 22 can also have other shapes and is not limited to the structure mentioned in this embodiment, as long as it can heat the air blown by the drying fan 21.

[0051] Furthermore, the heating wire frame is inclined relative to the air outlet direction of the drying fan 21 and is positioned towards the opening 102, so as to deflect the air delivered by the drying fan 21 towards the opening 102. In this embodiment, the housing 10 is provided with two spaced guide plates 13, which are inclined relative to the air outlet direction of the drying fan 21 and are positioned towards the heating wire frame, which helps to guide the air delivered by the drying fan 21 to the heating wire frame for heating.

[0052] In some embodiments, such as Figure 3As shown, the inner wall of the housing 10 is provided with a first positioning structure, and the drying fan 21 is provided with a second positioning structure. The first positioning structure and the second positioning structure cooperate to achieve the positioning and installation of the drying fan 21 onto the housing 10. In this embodiment, the first positioning structure is a positioning protrusion 14, and the second positioning structure is a positioning hole 211, with the positioning protrusion 14 inserted into the positioning hole 211. There are two positioning protrusions 14 and two positioning holes 211. Of course, the first and second positioning structures can also be in other forms, and are not limited to the positioning hole 211 and positioning protrusion 14 mentioned in this embodiment.

[0053] In some embodiments, the housing 10 is provided with a plurality of limiting protrusions 15, which are arranged around the heating wire frame. The plurality of limiting protrusions 15 are used to restrict the movement of the heating wire frame relative to the housing 10. Of course, other structures can also be used to constrain the movement of the heating wire frame relative to the housing 10, and are not limited to the plurality of limiting protrusions 15 mentioned in this embodiment. For example, a recess (not shown) can be provided on the inner wall surface of the housing 10 to accommodate part of the heating wire frame. The recess can also constrain the movement of the heating wire frame relative to the housing 10.

[0054] In some embodiments, the housing 10 is provided with a plurality of openings 106, which are disposed adjacent to the heating wire frame and are used to communicate the receiving cavity 101 with the outside of the housing 10. In some scenarios, when liquid enters the drying device 100, the liquid can flow to the outside of the housing 10 under the action of the plurality of openings 106, avoiding the risk of water accumulation inside the housing 10.

[0055] In some embodiments, please combine Figure 2-4 The drive assembly 30 includes a drive motor 31, a rack 32, and a gear 33. The drive motor 31 is mounted on the housing 10. Both the rack 32 and the gear 33 are movably mounted within the housing 10. The output shaft of the drive motor 31 is connected to the gear 33, and the gear 33 meshes with the rack 32. The rack 32 is connected to the telescopic tube 40. The drive motor 31 can be located inside or outside the housing 10, depending on the specific requirements. When the drive motor 31 drives the gear 33 to rotate, the rack 32 moves along with the gear 33, thereby causing the telescopic tube 40 to extend or retract into the cavity 101.

[0056] Furthermore, the housing 10 is provided with a limiting guide groove 16, which is used to constrain the direction of movement of the rack 32, thereby driving the telescopic tube 40 to move in a specific direction. The limiting guide groove 16 can be formed by extending along a straight line, or by extending along a combination of straight lines and curves. In this embodiment, as shown... Figure 5 and Figure 6As shown, the limiting guide groove 16 is formed by extending along a combination of straight lines and curves. That is, the limiting guide groove 16 includes a straight groove segment 161 and an arc-shaped groove segment 162 connected to the straight groove segment 161. The rack 32 has elastic deformation properties, that is, it has a certain degree of flexibility. The rack 32 is configured such that when the drive motor 31 drives the telescopic tube 40 to retract into the cavity 101, the portion of the rack 32 located in the arc-shaped groove segment 162 can be bent and deformed. In this way, under the action of the arc-shaped groove segment 162, the rack 32 can be bent, so that the rack 32 can be made longer as needed, and the space occupied by the rack 32 can also be reduced. At the same time, designing the rack 32 to be longer allows the telescopic tube 40 to have a greater telescopic distance to adapt to larger toilet seats, increasing the applicable scenarios of the drying device 100.

[0057] Understandably, in addition to the structure of the drive motor 31, rack 32 and gear 33 mentioned above, the drive assembly 30 can also be other structures, such as a combination of a drive motor (not shown), a worm gear (not shown) and a telescopic tube 40. One end of the worm gear is connected to the telescopic tube 40, and the output shaft of the drive motor is connected to the worm gear. The drive motor drives the worm gear to rotate, which can also realize the worm gear driving the telescopic tube 40 to extend or retract into the cavity 101.

[0058] In some embodiments, the telescopic tube 40 includes a tube body 41 and a connecting block 42 connected to the tube body 41. The tube body 41 has an open end 402 and a closed end 401. The connecting block 42 is disposed near the open end 402, and part of the connecting block 42 is disposed within the limiting guide groove 16 and connected to the rack 32. It is understood that the connecting block 42 and the rack 32 can be connected by a snap-fit ​​or by other means, depending on the specific needs. In this embodiment, the connecting block 42 includes a connecting portion 421 and a guide portion 422 connected to the connecting portion 421. The connecting portion 421 is connected to the tube body 41, and the guide portion 422 is provided with a bayonet 4221. The rack 32 is provided with a locking block 321, which is disposed within the bayonet 4221, so that the rack 32 can drive the tube body 41 to extend or retract into the cavity 101.

[0059] Furthermore, the guide portion 422 includes a side surface 4222 and a bottom surface 4223 near the tube body 41. The side surface 4222 and the bottom surface 4223 are arranged adjacent to each other. The guide portion 422 has a side edge 4224 that protrudes relative to the side surface 4222. The side edge 4224 is used to make line contact with the housing 10, which helps the guide portion 422 and the housing 10 to move more smoothly.

[0060] In some embodiments, such as Figure 7As shown, the housing 10 has an inner protruding edge 103, a first protrusion 104, and a second protrusion 105 at the opening 102. The first protrusion 104 and the second protrusion 105 are spaced apart and disposed on the same side of the inner protruding edge 103, and together support the telescopic tube 40. This helps to reduce the contact area between the telescopic tube 40 and the inner protruding edge 103, making the telescopic tube 40 extend or retract into the cavity 101 more smoothly. In this embodiment, the first protrusion 104 and the second protrusion 105 are located away from the air outlet 403 in the first direction X.

[0061] Furthermore, the inner convex edge 103 includes an inclined portion 1031. A first protrusion 104 and a second protrusion 105 are disposed opposite to the inclined portion 1031. The inclined portion 1031 fits against the wall of the telescopic tube 40. At this time, the wall surface abutting between the telescopic tube 40 and the inclined portion 1031 needs to be set as an inclined wall surface. The direction of the closed end 401 towards the opening 102 and perpendicular to the first direction X is defined as the second direction Y. This facilitates the telescopic tube 40 being inclined relative to the opening 102 in the second direction Y, so that the air outlet 403 tilts towards one side of the housing 10 to discharge air.

[0062] In some embodiments, when viewed along a direction opposite to the first direction X, the area of ​​the air outlet 403 is S1, and the cross-sectional area of ​​the telescopic pipe 40 in a third direction is S2, satisfying S1 ≥ 70% S2, where the third direction refers to the direction perpendicular to both the first direction X and the second direction Y. Figure 8 As shown, Figure 8 The diagram shows three embodiments. Curve 1 represents the relationship between air volume and air pressure when S1 = 60%S2, Curve 2 represents the relationship between air volume and air pressure when S1 = 70%S2, and Curve 3 represents the relationship between air volume and air pressure when S1 = 80%. Under the same air volume, the air pressure difference between Curve 2 and Curve 3 is not significant, while the air pressure of Curve 1 is relatively large. Therefore, it can be seen that when S1 ≥ 70%S2, the air pressure is more suitable, and the air energy output from the air outlet 403 of the drying device 100 is blown out more smoothly.

[0063] In some embodiments, such as Figure 9-11As shown, the pipe body 41 includes a pipe cover 411 and a pipe body 412. The pipe cover 411 is disposed on the pipe body 412, wherein the pipe cover 411 is provided with an air outlet 403, and the side edge of the pipe body 412 is provided with a notch 4121 communicating with the air outlet 403. Along the first direction X, the distance between the notch 4121 and the pipe cover 411 is h, where h satisfies 2.25mm < h < 2.35mm. In this embodiment, a first hook angle 405 is formed between the side wall of the air outlet 403 near the closed end 401 and the closed end 401. A protrusion 4122 is provided on the inner wall of the pipe body 412 at the notch 4121. A second hook angle 406 is formed between the protrusion 4122 and the inner wall surface of the pipe body 412. Both the first hook angle 405 and the second hook angle 406 can be used to change the direction of the airflow within the pipe body 412, thereby causing the airflow within the pipe body 412 to be blown out of the air outlet 403 at a preset angle relative to the symmetrical center plane M of the pipe body 412. Figure 12-13 As shown, Figure 12 The diagram shows the airflow velocity of the drying device 100 under simulated conditions when the first hook angle 405 and the second hook angle 406 are set. Figure 13 The diagram shows the airflow velocity of the drying device 100 in a simulated state without the first hook angle 405 and the second hook angle 406. Figure 12 and Figure 13 A comparison shows that when the drying device 100 is equipped with the first hook angle 405 and the second hook angle 406, the air blown from the air outlet 403 is more concentrated, which is beneficial for concentrated drying of the area to be dried during use. In some embodiments, the distance between the side wall of the air outlet 403 near the closed end 401 and the closed end 401 in the second direction Y is d1, where d1 is 2.3 mm, and the thickness of the protrusion 4122 relative to the inner wall of the tube body 412 is d2, where d2 is 0.5 mm. Of course, the values ​​of d1 and d2 can be adjusted adaptively as needed.

[0064] It should be understood that Figure 14 The diagram shows the air velocity diagram of the air blown from the air outlet 403 under simulated conditions of the drying device 100 when h is 2.25 mm. Figure 15 The diagram shows the air velocity diagram of the air blown from the air outlet 403 in the simulated state of the drying device 100 when h is 2.32 mm. Figure 16 The diagram shows the air velocity diagram of the air blown from outlet 403 when h is 3.3 mm. Figures 14-16 The comparison shows that the angle β of the air blown out of the air outlet 403 of the drying device 100 relative to the symmetry center plane M of the pipe body 412 is [not specified]. Figure 14 The angle β is 27.3°. Figure 15 The angle β is 25.8°. Figure 16The angle β is 25.6°. The smaller h is, the larger β is. In use, in order to accommodate the size limitations of the toilet, the angle of deflection of the air blown from the air outlet 403 of the drying device 100 relative to the symmetrical center plane of the pipe body 412 needs to be limited within a certain range to achieve a better drying effect. When 2.25mm < h < 2.35mm is satisfied, the air supplied by the drying device 100 can be applied to the user's damp area, which is beneficial to improving the drying effect.

[0065] In some embodiments, please refer again Figure 2 The drying device 100 also includes a temperature sensor 50, which is installed in the housing 10 and is used to detect the ambient temperature inside the housing 10. In this embodiment, the housing 10 is provided with a connector (not shown), which is located near the opening 102. The temperature sensor 50 is plugged into the connector, and its probe extends into the housing 10. The temperature sensor 50 can also be used to detect the temperature of the air supplied to the opening 102 from inside the housing 10. Understandably, the control module of the drying device 100 can determine whether the air supplied by the drying fan 21 needs to be heated based on the ambient temperature measured by the temperature sensor 50, and control the heating element 22 to adjust the temperature to be heated.

[0066] During use, when the temperature sensor 50 detects that the ambient temperature inside the housing 10 is lower than the preset value, the heating element 22 starts to work. The air supplied by the drying fan 21 is heated by the heating element 22 to form warm air, thus the air supplied by the drying device 100 is warm air at this time. When the temperature sensor 50 detects that the ambient temperature inside the housing 10 is higher than the preset value, the heating element 22 stops working, and the air supplied by the drying fan 21 does not need to be heated by the heating element 22 and is blown directly out from the air outlet 403. At this time, the air blown out by the drying device 100 is at room temperature.

[0067] In some embodiments, please refer again Figure 2 The drying device 100 also includes a buffer 60, which surrounds the periphery of the air outlet 403 of the drying fan 21. The buffer 60 is used to reduce the risk of the drying fan 21 vibrating and impacting the housing 10 during operation. Simultaneously, the buffer 60 also helps to reduce the risk of backflow from the drying fan 21 at the periphery of the air outlet 403. In this embodiment, the buffer 60 is foam. Of course, the buffer 60 can also be a ring-shaped structure made of other materials with cushioning properties, such as silicone, and is not limited to the foam mentioned in this embodiment.

[0068] In some embodiments, please refer again Figure 1The housing 10 is partially hollowed out to form an opening groove 17 and an elastic fastener 18. The elastic fastener 18 can swing relative to the opening groove 17 and presses against the drying fan 21. The elastic fastener 18 is used to suppress the amplitude of vibration of the drying fan 21 when it is working. In this embodiment, the opening groove 17 is U-shaped, and the elastic fastener 18 is disposed in the U-shaped opening groove 17. When the drying fan 21 vibrates relative to the housing 10 when it is working, due to the pressing of the elastic fastener 18, the drying fan 21 needs to overcome the deformation of the elastic fastener 18 when it vibrates, thus converting some of its kinetic energy. Therefore, the elastic fastener 18 can suppress the amplitude of vibration of the drying fan 21.

[0069] The drying apparatus 100 provided in this embodiment includes a housing 10, a drying assembly 20, a telescopic tube 40, and a drive assembly 30. The housing 10 has a receiving cavity 101 and an opening 102 communicating with the receiving cavity 101. The drying assembly 20 is installed in the housing 10 and housed in the receiving cavity 101, and is used to supply air to the opening 102. The telescopic tube 40 is installed in the housing 10 and has a closed end 401 and an open end 402 communicating with the receiving cavity 101. The open end 402 is closer to the drying assembly than the closed end 401. Component 20 has a closed end 401 bent relative to an open end 402. The direction of this bend is defined as a first direction X. Along a direction opposite to the first direction X, a telescopic tube 40 has an air outlet 403 located near the closed end 401. The telescopic tube 40 guides the movement of air. A drive assembly 30 is connected to the telescopic tube 40 and mounted on the housing 10. The drive assembly 30 drives the telescopic tube 40 to move, allowing it to extend or retract into the cavity 101 through the opening 102. Thus, under the action of the drive assembly 20, the telescopic tube 40 can extend and retract relative to the housing 10 to accommodate different air outlet positions, resulting in high drying efficiency and convenient use. Meanwhile, the air outlet 403 is positioned close to the closed end 401, and the closed end 401 is bent relative to the open end 402, ensuring that there is an appropriate distance between the air outlet 403 and the toilet seat. Compared with the straight tube structure of the telescopic tube 40, this reduces the risk of excessively high air temperature caused by too small a distance between the air outlet 403 and the toilet seat, and reduces the risk of burning the user's buttocks due to excessively high air temperature.

[0070] Another embodiment of this application provides a toilet including the drying device 100 from the above embodiments. The toilet also includes a body, a seat cushion mounted on the body, a spray nozzle, and a control module. Both the spray nozzle and the drying device 100 are mounted on the body and connected to the control module. The control module controls the spray nozzle to spray water and controls the operation of the drying device 100. The spray nozzle uses a conventional structure and will not be described in detail here.

[0071] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A drying apparatus, characterized in that, include: The housing has a receiving cavity and an opening communicating with the receiving cavity; A drying assembly is installed in the housing and housed within the receiving cavity, the drying assembly being used to supply air toward the opening; A telescopic tube is installed inside the housing. The telescopic tube has a closed end and an open end communicating with the receiving cavity. The open end is close to the drying assembly relative to the closed end. The closed end is bent relative to the open end. The direction in which the closed end is bent relative to the open end is defined as a first direction. Along a direction opposite to the first direction, the telescopic tube is provided with an air outlet. The air outlet is located close to the closed end. The telescopic tube is used to guide the movement of air. A drive assembly is connected to the telescopic tube and is mounted on the housing. The drive assembly is used to drive the telescopic tube to move so that the telescopic tube can extend or retract through the opening into the receiving cavity. The telescopic pipe includes a pipe body, which includes a pipe cap and a pipe main body connected to the pipe cap. The pipe cap is provided with the air outlet, and the side edge of the pipe main body is provided with a notch communicating with the air outlet. A first hook angle is formed between the side wall of the air outlet near the closed end and the closed end. A protrusion is provided on the inner wall of the pipe body at the notch. A second hook angle is formed between the protrusion and the inner wall surface of the pipe body. Both the first hook angle and the second hook angle can be used to change the direction of the airflow inside the pipe body.

2. The drying apparatus according to claim 1, characterized in that, The drive assembly includes a drive motor, a rack, and a gear. The drive motor is mounted on the housing. The rack and the gear are both movably mounted inside the housing. The output shaft of the drive motor is connected to the gear. The gear meshes with the rack. The rack is connected to the telescopic tube. When the drive motor drives the gear to rotate, the rack moves with the rotation of the gear to drive the telescopic tube to extend or retract into the receiving cavity.

3. The drying apparatus according to claim 2, characterized in that, The housing is provided with a limiting guide groove, and the rack is disposed in the limiting guide groove; The telescopic tube includes a tube body and a connecting block connected to the tube body. The tube body has an open end and a closed end. The connecting block is located near the open end and is partially disposed in the limiting guide groove and connected to the rack.

4. The drying apparatus according to claim 3, characterized in that, The rack has elastic deformation properties, and the limiting guide groove includes a straight groove segment and an arc-shaped groove segment connected to the straight groove segment. The rack is configured such that when the drive motor drives the telescopic tube to retract into the receiving cavity, the portion of the rack located in the arc-shaped groove segment can be bent and deformed.

5. The drying apparatus according to claim 3, characterized in that, The connecting block includes a connecting portion and a guide portion connected to the connecting portion. The connecting portion is connected to the tube body. The guide portion includes a side surface and a bottom surface near the tube body. The side surface and the bottom surface are adjacent to each other. The guide portion has a side edge that protrudes relative to the side surface. The side edge is used to contact the housing line.

6. The drying apparatus according to claim 1, characterized in that, The housing has an inner convex edge, a first protrusion, and a second protrusion at the opening. The first protrusion and the second protrusion are spaced apart and disposed on the same side of the inner convex edge. The first protrusion and the second protrusion together support the telescopic tube.

7. The drying apparatus according to claim 6, characterized in that, The inner convex edge includes an inclined portion, and the first protrusion and the second protrusion are disposed opposite to the inclined portion, and the inclined portion is in contact with the wall surface of the telescopic tube.

8. The drying apparatus according to claim 1, characterized in that, It also includes a temperature sensor, which is mounted on the housing and is used to detect the temperature inside the housing.

9. The drying apparatus according to any one of claims 1-8, characterized in that, The drying assembly includes a drying fan and a heating element. The drying fan is housed within the housing cavity, and the heating element is disposed at the air outlet of the drying fan. The heating element is used to heat the air supplied by the drying fan.

10. The drying apparatus according to claim 9, characterized in that, The drying assembly also includes a buffer element that surrounds the periphery of the air outlet of the drying fan.

11. The drying apparatus according to claim 1, characterized in that, The direction from the closed end toward the open end and perpendicular to the first direction is defined as the second direction, and the direction perpendicular to both the first and second directions is defined as the third direction. When viewed along the first direction, the area of ​​the air outlet is S1, and the cross-sectional area of ​​the telescopic pipe in the third direction is S2, satisfying S1≥70%S2.

12. The drying apparatus according to claim 1, characterized in that, Along the first direction, the distance between the notch and the pipe cap is h, where h satisfies 2.25mm < h < 2.35mm.

13. A toilet seat, characterized in that, Includes the drying apparatus as described in any one of claims 1-12.

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