Drying device for smart toilet and smart toilet

Through the cooperation of the two-stage telescopic structure of the inner sleeve and the outer sleeve and the drive motor, the design of the intelligent toilet drying device is simplified, the problems of complex structure and high cost in the existing technology are solved, and cost reduction and functional stability are achieved. .

CN113202169BActive Publication Date: 2025-01-03SHENZHEN PROTOSTELLAR TECH CO LTD
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Patent Information

Application Number
CN202110615681.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-06-02
Publication Date
2025-01-03
Estimated Expiration
2041-06-02

AI Technical Summary

Technical Problem

The drying device of existing smart toilets has a complex structure, large space and high production costs.

Method used

The inner sleeve and outer sleeve are used to form a two-stage telescopic structure. The drive motor drives the inner sleeve to rotate coaxially, and cooperate with the spiral rotating slide and guide block to realize the front and rear expansion of the outer sleeve relative to the base, simplifying the drying device structure.

Benefits of technology

The structure of the drying device is simplified and the production cost of smart toilets is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a drying device for an intelligent toilet and an intelligent toilet, the drying device comprises a base, an outer sleeve, an inner sleeve and a driving motor; the outer sleeve is slidably connected to the base, and an air outlet is provided at the front end of the outer sleeve; the inner sleeve is coaxially and movably inserted in the outer sleeve; the driving motor is used to drive the inner sleeve to rotate axially relative to the outer sleeve; a rotating slide is recessed on the outer peripheral wall of the inner sleeve, and the rotating slide is spirally wrapped around the outer peripheral wall of the inner sleeve; a guide block is provided on the inner wall of the outer sleeve; when the inner sleeve rotates coaxially relative to the outer sleeve, the rotating slide can drive the guide block to slide relatively along the rotating slide, and drive the outer sleeve to slide forward and backward relative to the base. The present invention utilizes the inner sleeve to cooperate with the outer sleeve to form a two-stage telescopic structure, and utilizes the spiral rotating slide to cooperate with the guide block to realize the axial telescopic expansion of the outer sleeve relative to the inner sleeve, thereby realizing the telescopic expansion of the outer sleeve relative to the base, and simplifying the structure of the drying device.
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Description

Technical Field

[0001] The present invention relates to the technical field of sanitary ware, and in particular to a drying device for an intelligent toilet and the intelligent toilet. Background Art

[0002] Smart toilets are an upgraded version of ordinary toilets and a product of technological development. In addition to the basic functions of a toilet, smart toilets also have very comfortable and practical functions such as automatic flushing, seat heating, buttocks cleaning, and warm air drying.

[0003] In the related art, the warm air drying function of the smart toilet is mainly realized by a drying device, which has a telescopic function and generally includes a heating wire and a fan. When drying is required, the drying device can extend out of the toilet body to dry the user. However, the drying device of the existing smart toilet has a relatively complex structure, occupies a large space inside the smart toilet, and has a high production cost. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent toilet and a drying device thereof and an intelligent toilet, so as to optimize the structure of the drying device of the intelligent toilet in the prior art, simplify the structure of the drying device, and reduce the production cost of the intelligent toilet.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, the present invention provides a drying device for an intelligent toilet, which includes a base; an outer sleeve slidably connected to the base, and an air outlet is provided at the front end of the outer sleeve; an inner sleeve coaxially and movably inserted in the outer sleeve; and a drive motor, which is connected to the inner sleeve and is used to drive the inner sleeve to rotate axially relative to the outer sleeve; the drive motor is a forward and reverse motor; wherein, a rotating slide is recessed on the outer peripheral wall of the inner sleeve, and the rotating slide is spirally wrapped around the outer peripheral wall of the inner sleeve; a guide block is convexly provided on the inner wall of the outer sleeve and extends into the rotating slide; when the inner sleeve rotates coaxially relative to the outer sleeve, the rotating slide can drive the guide block to slide relatively along the rotating slide, and drive the outer sleeve to extend and retract back and forth relative to the base.

[0007] According to some embodiments of the present application, the rear end of the outer sleeve is provided with a clamping arm extending backward; the clamping arms are provided in plurality and are arranged at circumferential intervals, and the guide block is provided on the inner side wall of the clamping arm; the rear end portion of the clamping arm can be elastically opened radially so that the outer sleeve is coaxially sleeved on the outer periphery of the inner sleeve, and the guide block is extended into the rotating slide.

[0008] According to some embodiments of the present application, the guide block is integrally formed and protrudes from the inner side wall of the clamping arm.

[0009] According to some embodiments of the present application, a mounting groove is recessed on the inner side wall of the clamp arm; the guide block is detachably mounted in the mounting groove and protrudes on the inner side wall of the clamp arm.

[0010] According to some embodiments of the present application, the rotating slide includes a threaded section, a front smooth section and a rear smooth section which are extended integrally; the threaded section is spirally wrapped around the outer peripheral wall of the inner sleeve; the front smooth section and the rear smooth section are respectively extended at the front and rear ends of the spiral section, and the helix angles of the front smooth section and the rear smooth section are both greater than the helix angle of the threaded section.

[0011] According to some embodiments of the present application, the rotating slideway is provided in plurality and is arranged at circumferential intervals.

[0012] According to some embodiments of the present application, the base is provided with a guide groove extending in the front-to-back direction; the outer peripheral wall of the outer sleeve is provided with a sliding rib corresponding to the guide groove; and the sliding rib is slidably connected to the guide groove.

[0013] According to some embodiments of the present application, the base is recessed with an assembly groove extending in the front-to-back direction; the guide groove is recessed on the inner wall of the assembly groove, and two guide grooves are provided and are respectively disposed at the two side edges of the inner wall of the assembly groove.

[0014] According to some embodiments of the present application, the drying device for a smart toilet also includes a driving gear; the driving gear is arranged on the output shaft of the driving motor; the rear end of the outer peripheral wall of the inner sleeve is convexly provided with an outer gear ring extending circumferentially; the outer gear ring is meshed with the driving gear.

[0015] According to another aspect of the present invention, the present invention also provides a smart toilet, which adopts and includes the above-mentioned drying device for a smart toilet.

[0016] It can be seen from the above technical solutions that the embodiments of the present invention have at least the following advantages and positive effects:

[0017] In the drying device for a smart toilet in an embodiment of the present invention, an inner sleeve and an outer sleeve cooperate to form a two-stage telescopic structure, and a driving motor is used to drive the inner sleeve to rotate coaxially relative to the outer sleeve, and cooperate with a spirally encircling rotating slide on the outer wall of the inner sleeve and a guide block on the inner wall of the outer sleeve, so that when the inner sleeve rotates coaxially relative to the outer sleeve, the rotating slide can drive the guide block to slide relative to the rotating slide, and then cooperate with the forward and reverse rotation of the driving motor, thereby driving the outer sleeve to axially extend and retract relative to the inner sleeve; cooperate with the sliding connection between the outer sleeve and the base, thereby driving the outer sleeve to extend and retract forward and backward relative to the base, thereby simplifying the structure of the drying device and helping to reduce the overall production cost of the smart toilet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 1 is a schematic diagram of the structure of a drying device according to an embodiment of the present invention, in which the outer sleeve is in an extended state.

[0019] Figure 2 yes Figure 1 A schematic structural diagram of the drying device in another state, in which the outer sleeve is in a contracted state.

[0020] Figure 3 yes Figure 1 Schematic diagram of the decomposition structure.

[0021] Figure 4 yes Figure 3 Schematic diagram of the structure of the middle outer casing.

[0022] Figure 5 yes Figure 1 sectional view of .

[0023] Figure 6 It is a schematic diagram of the structure of a drying device in another embodiment of the present invention.

[0024] Figure 7 yes Figure 6 Schematic diagram of the decomposition structure.

[0025] Figure 8 yes Figure 6 sectional view of .

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Base; 11. Assembly groove; 12. Guide groove; 2. Outer sleeve; 21. Air outlet; 22. Sliding ribs; 23. Guide block; 24. Clamp arm; 25. Mounting groove; 3. Inner sleeve; 31. Rotating slideway; 311. Threaded section; 312. Front smooth section; 313. Rear smooth section; 32. Outer gear ring; 4. Driving motor; 5. Driving gear. DETAILED DESCRIPTION

[0028] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the related art, the warm air drying function of the smart toilet is mainly realized by a drying device, which has a telescopic function and generally includes a heating wire and a fan. When drying is required, the drying device can extend out of the toilet body to dry the user. However, the drying device of the existing smart toilet has a relatively complex structure, occupies a large space inside the smart toilet, and has a high production cost.

[0033] See also Figures 1 to 3 As shown, the drying device for a smart toilet provided in an embodiment of the present invention mainly includes a base 1, an outer sleeve 2, an inner sleeve 3, a driving motor 4 and a driving gear 5.

[0034] The base 1 is used to be arranged inside the toilet body or toilet cover of the smart toilet, and can be used to provide an installation position or installation space for the outer sleeve 2, the inner sleeve 3, the drive motor 4 and the drive gear 5.

[0035] The outer sleeve 2 is slidably mounted on the base 1 , and the outer sleeve 2 can slide forward and backward relative to the base 1 to extend out of the base 1 or retract into the base 1 .

[0036] The front end of the outer sleeve 2 is provided with an air outlet 21. When the outer sleeve 2 is extended and retracted relative to the base 1, or after the outer sleeve 2 extends out of the base 1, warm air can be ejected from the air outlet 21 to dry.

[0037] The inner sleeve 3 is coaxially and movably inserted inside the outer sleeve 2, that is, the outer sleeve 2 is coaxially sleeved outside the inner sleeve 3. When the inner sleeve 3 rotates coaxially relative to the outer sleeve 2 inside the outer sleeve 2, the inner sleeve 3 can drive the outer sleeve 2 to extend and retract relative to the base 1 to realize the extension and retraction function of the drying device.

[0038] The driving motor 4 is drivingly connected to the inner sleeve 3 to drive the inner sleeve 3 to rotate around its own axis, so that the inner sleeve 3 can rotate coaxially relative to the outer sleeve 2 inside the outer sleeve 2.

[0039] The driving gear 5 is arranged on the output shaft of the driving motor 4, and the driving gear 5 is drivingly connected with the inner sleeve 3. The driving gear 5 is used to transmit power between the driving motor 4 and the inner sleeve 3, so that the driving motor 4 can control the inner sleeve 3 to rotate around its axis.

[0040] See also Figure 3 In some examples, a mounting groove 11 is recessed downward on the top surface of the base 1, and the mounting groove 11 extends in the front-to-back direction. The shape of the mounting groove 11 is adapted to the outer contour of the outer sleeve 2. Figure 3 As shown, the cross section of the assembly groove 11 is arc-shaped. It is understandable that the cross section of the assembly groove 11 can be semicircular or in other shapes.

[0041] The outer sleeve 2 is slidably mounted on the assembly groove 11 of the base 1 and can move forward and backward along the assembly groove 11 , thereby enabling the outer sleeve 2 to extend and retract forward and backward relative to the base 1 .

[0042] Still see Figure 3 In some embodiments, a guide groove 12 is provided at the edges of both sides of the inner wall of the assembly groove 11, and a sliding rib 22 corresponding to the guide groove 12 is convexly provided on the outer peripheral wall of the outer sleeve 2, and the sliding rib 22 is slidably connected in the guide groove 12. The two guide grooves 12 cooperate with the two sliding ribs 22 to limit the outer sleeve 2 on the base 1, and form a stable sliding connection between the outer sleeve 2 and the base 1.

[0043] Still see Figure 3 , a rotating slide 31 is concavely arranged on the outer peripheral wall of the inner sleeve 3, and the rotating slide 31 is spirally wound around the outer peripheral wall of the inner sleeve 3. A guide block 23 is convexly arranged on the inner wall of the outer sleeve 2, and the guide block 23 can extend into the rotating slide 31. When the inner sleeve 3 rotates axially relative to the outer sleeve 2, the side wall of the rotating slide 31 can squeeze the guide block 23 and drive the guide block 23 to slide relatively along the rotating slide 31, thereby driving the outer sleeve 2 to move forward and backward relative to the inner sleeve 3. When the inner sleeve 3 is stationary relative to the base 1 in the axial direction, the outer sleeve 2 can slide forward and backward and telescope forward and backward relative to the base 1.

[0044] It should be noted that, in this embodiment, the drive motor 4 is a forward and reverse motor. When the drive motor 4 rotates forward, the drive gear 5 drives the inner sleeve 3 to rotate forward about its axis, thereby driving the outer sleeve 2 to extend forward relative to the base 1. When the drive motor 4 rotates reversely, the drive gear 5 drives the inner sleeve 3 to rotate reversely about its axis, thereby driving the outer sleeve 2 to extend backward relative to the base 1.

[0045] Still see Figure 3 In some embodiments, the rotating slide 31 includes a threaded section 311 , a front smooth section 312 , and a rear smooth section 313 that are extended integrally.

[0046] The thread segment 311 is spirally wound around the outer peripheral wall of the inner sleeve 3. It can be understood that the pitch of the thread segment 311 and its axial length in the inner sleeve 3 can be adjusted according to the telescopic stroke of the outer sleeve 2.

[0047] The front smooth section 312 is extended to the front end of the threaded section 311 . The rear smooth section 313 is extended to the rear end of the threaded section 311 .

[0048] A smooth or rounded transition is adopted between the front smooth section 312 and the threaded section 311 as well as between the rear smooth section 313 and the threaded section 311 , so that the guide block 23 can smoothly enter the front smooth section 312 and the rear smooth section 313 from the threaded section 311 .

[0049] The helix angles of the front smooth section 312 and the rear smooth section 313 are both greater than the helix angle of the threaded section 311. It should be noted that the helix angle is the angle between the tangent of the threaded section 311, the front smooth section 312 or the rear smooth section 313 and the axis of the inner sleeve 3. Therefore, when the guide block 23 moves relatively in the threaded section 311, its moving speed in the axial direction of the inner sleeve 3 is faster; and when the guide block 23 moves relatively in the front smooth section 312 or the rear smooth section 313, its moving speed in the axial direction of the inner sleeve 3 is slower. As a result, when the outer sleeve 2 performs telescopic movement relative to the base 1, its telescopic speed in the initial stage and the final stage is relatively slow, which can effectively buffer the outer sleeve 2 at the starting point and the end point of the movement of extending or retracting the base 1, and can also make the telescopic range of the outer sleeve 2 more stable.

[0050] It is understandable that, in some embodiments, the front smooth section 312 and the rear smooth section 313 may also be perpendicular to the axis of the inner sleeve 3 and extend along the circumferential direction of the inner sleeve 3. At this time, when the guide block 23 moves relatively with the front smooth section 312 or the rear smooth section 313, the outer sleeve 2 does not move in the axial direction of the inner sleeve 3, that is, the outer sleeve 2 does not extend or retract relative to the base 1.

[0051] Still see Figure 3 , there are two rotating slideways 31, which are arranged at equal intervals along the circumference of the inner sleeve 3, that is, they are of a centrally symmetrical structure. Correspondingly, two centrally symmetrically distributed guide blocks 23 are provided on the inner wall of the outer sleeve 2. It can be understood that there can be three, four or more rotating slideways 31. The cooperation of multiple centrally symmetrical rotating slideways 31 and guide blocks 23 can make the force of each guide block 23 more balanced, and make the relative rotation between the outer sleeve 2 and the inner sleeve 3 and the telescopic movement of the outer sleeve 2 smoother and more stable.

[0052] See also Figures 1 to 3 , an outer gear ring 32 extending in the circumferential direction is convexly provided on the outer peripheral wall of the rear end of the inner sleeve 3. The center line of the outer gear ring 32 is located on the axis of the inner sleeve 3. At this time, the driving gear 5 is meshed with the outer gear ring 32, and the center line of the driving gear 5 and the axis of the output shaft of the driving motor 4 are parallel to the axis of the inner sleeve 3. Therefore, when the driving motor 4 controls the driving gear 5 to rotate, the inner sleeve 3 can be driven to rotate axially.

[0053] It is understandable that, instead of using the drive gear 5 between the drive motor 4 and the inner sleeve 3 , a structure such as a screw or a rack can be used to achieve power transmission between the drive motor 4 and the inner sleeve 3 to control the axial rotation of the inner sleeve 3 .

[0054] See also Figure 5 , and combined with Figure 3The inner sleeve 3 is a cylindrical structure, and its front and rear ends are both open. Air can enter the inner sleeve 3 through the rear end opening of the inner sleeve 3, and enter the outer sleeve 2 through the front end opening of the inner sleeve 3, and finally blow out through the air outlet 21 at the front end of the outer sleeve 2 to achieve the drying function.

[0055] See also Figure 4 , and combined with Figures 1 to 3 In some embodiments, the rear end of the outer sleeve 2 is provided with a clamp arm 24 extending backward. Two clamp arms 24 are provided, and are symmetrically distributed in the circumferential direction, and the two clamp arms 24 are arranged at intervals. The guide block 23 is provided on the inner side wall of the clamp arm 24, and each clamp arm 24 can be provided with one or more guide blocks 23. It can be understood that three, four or more clamp arms 24 can be provided, and the multiple clamp arms 24 are arranged at equal intervals in the circumferential direction.

[0056] The clamp arm 24 of the outer sleeve 2 has a certain elasticity, and the rear end of the clamp arm 24 can be elastically opened in the radial direction, so that the outer sleeve 2 is coaxially sleeved on the outer periphery of the inner sleeve 3, and the guide block 23 is extended into the rotating slideway 31. Therefore, the design of the clamp arm 24 on the outer sleeve 2 can simplify the assembly difficulty between the outer sleeve 2 and the inner sleeve 3, increase the assembly speed between the outer sleeve 2 and the inner sleeve 3, and then simplify the structure of the drying device, and help reduce the production cost of the intelligent whole.

[0057] See also Figure 4 In some embodiments, a mounting groove 25 is recessed on the inner side wall of the clamp arm 24. The guide block 23 is detachably mounted in the mounting groove 25, such as by threaded connection, and the guide block 23 is convexly mounted on the inner side wall of the clamp arm 24. The guide block 23 can be fixed in the mounting groove 25 by bonding. The guide block 23 can be made of metal material to make the relative sliding between the guide block 23 and the outer wall of the inner sleeve 3 smoother.

[0058] It is understandable that the guide block 23 can also be integrally formed on the inner side wall of the clamp arm 24. For example, the guide block 23 is convexly formed on the inner side wall of the clamp arm 24 by injection molding or hot melting.

[0059] See also Figure 5 , and combined with Figure 3 The two guide blocks 23 are centrally symmetrically arranged on the inner side wall of the outer sleeve 2 and extend into a rotating slideway 31. When the inner sleeve 3 rotates coaxially relative to the outer sleeve 2, the two rotating slideways 31 can squeeze the two guide blocks 23 respectively, so that the guide blocks 23 are subjected to an axial external force, thereby causing the outer sleeve 2 to move axially relative to the inner sleeve 3, thereby realizing the forward and backward extension of the outer sleeve 2 in the axial direction.

[0060] Figure 6It is a schematic diagram of the structure of a drying device in another embodiment of the present invention. Figure 7 yes Figure 6 Schematic diagram of the decomposition structure. Figure 8 yes Figure 7 A schematic structural diagram of the middle outer sleeve 2.

[0061] See also Figures 6 to 8 The drying device of this embodiment and Figures 1 to 5 The basic structural composition of the drying device in the embodiment is the same, the only difference is the structure of the rotating slideway 31 on the outer peripheral wall of the inner sleeve 3.

[0062] See also Figure 7 In this embodiment, the axial length of the rotating slideway 31 on the outer peripheral wall of the inner sleeve 3 is longer, so the telescopic range of the outer sleeve 2 in this embodiment is larger. That is, by adjusting the axial length of the rotating slideway 31, the telescopic range and telescopic length of the outer sleeve 2 relative to the inner sleeve 3 and the base 1 can be appropriately adjusted.

[0063] See also Figure 7 and Figure 8 In this embodiment, the pitch of the rotating slideway 31 is smaller, so when the guide block 23 slides relatively in the rotating slideway 31, the outer sleeve 2 moves more slowly in the axial direction. That is, by adjusting the pitch of the rotating slideway 31, the moving speed of the outer sleeve 2 in the axial direction can be adjusted.

[0064] Based on the structure of the drying device for the smart toilet, an embodiment of the present invention further provides a smart toilet. The smart toilet mainly includes a toilet body, a toilet cover, a seat ring, a flip cover and a drying device. The drying device is arranged inside the toilet body or the toilet cover, and the drying device adopts the drying device of the above embodiment.

[0065] It should be noted that the base 1 can be arranged horizontally inside the toilet body or toilet cover, or the base 1 can also be arranged obliquely inside the toilet body or toilet cover. The above methods do not affect the normal use of the drying device inside the toilet.

[0066] Based on the above technical solution, the embodiments of the present invention have at least the following advantages and positive effects:

[0067] In the drying device for the smart toilet of the embodiment of the present invention, the inner sleeve 3 is cooperated with the outer sleeve 2 to form a two-stage telescopic structure, and the driving motor 4 is used to drive the inner sleeve 3 to rotate coaxially relative to the outer sleeve 2, and cooperate with the spirally encircling rotating slide 31 on the outer wall of the inner sleeve 3, and the guide block 23 on the inner wall of the outer sleeve 2, so that when the inner sleeve 3 rotates coaxially relative to the outer sleeve 2, the rotating slide 31 can drive the guide block 23 to slide relative to the rotating slide 31, and then cooperate with the forward and reverse rotation of the driving motor 4, thereby driving the outer sleeve 2 to axially extend and retract relative to the inner sleeve 3; cooperate with the sliding connection between the outer sleeve 2 and the base 1, thereby driving the outer sleeve 2 to extend and retract forward and backward relative to the base 1, thereby simplifying the structure of the drying device and helping to reduce the overall production cost of the smart toilet.

[0068] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A drying device for a smart toilet, characterized in that: include: Base; An outer sleeve is slidably connected to the base, and an air outlet is provided at the front end of the outer sleeve; An inner sleeve, coaxially and movably inserted into the outer sleeve; and A driving motor connected to the inner sleeve, the driving motor is used to drive the inner sleeve to rotate around its own axis so that the inner sleeve can rotate coaxially relative to the outer sleeve; the driving motor is a forward and reverse motor; Wherein, a rotating slide is concavely provided on the outer peripheral wall of the inner sleeve, and the rotating slide is spirally wrapped around the outer peripheral wall of the inner sleeve; a guide block is convexly provided on the inner wall of the outer sleeve and extends into the rotating slide; When the inner sleeve rotates coaxially relative to the outer sleeve, the rotating slideway can drive the guide block to slide relatively along the rotating slideway, and drive the outer sleeve to extend and retract forward and backward relative to the base; The rear end of the outer sleeve is provided with a clamp arm extending backward; the clamp arms are provided in plurality and are arranged at intervals in the circumferential direction; The guide block is arranged on the inner side wall of the clamp arm; The rear end of the clamp arm can be elastically opened in the radial direction, so that the outer sleeve is coaxially sleeved on the outer periphery of the inner sleeve, and the guide block is extended into the rotating slideway; The rotary slideway comprises a threaded section, a front smooth section and a rear smooth section extending in one piece; The thread segment spirally surrounds the outer peripheral wall of the inner sleeve; The front smooth section and the rear smooth section are respectively extended to the front and rear ends of the threaded section, and the helical angles of the front smooth section and the rear smooth section are both greater than the helical angle of the threaded section.

2. The drying device for an intelligent toilet according to claim 1, characterized in that: The guide block is integrally formed and protrudes from the inner side wall of the clamping arm.

3. The drying device for an intelligent toilet according to claim 1, characterized in that: The inner side wall of the clamp arm is concavely provided with a mounting groove; the guide block is detachably installed in the mounting groove and convexly provided on the inner side wall of the clamp arm.

4. The drying device for an intelligent toilet according to claim 1, characterized in that: The rotating slideways are provided in plurality and are arranged at intervals in the circumferential direction.

5. The drying device for an intelligent toilet according to claim 1, characterized in that: The base is provided with a guide groove extending in the front-rear direction; the outer peripheral wall of the outer sleeve is provided with a sliding rib corresponding to the guide groove; the sliding rib is slidably connected with the guide groove.

6. The drying device for an intelligent toilet according to claim 5, characterized in that: The base is provided with a mounting groove extending in the front-to-back direction; The guide groove is recessed on the inner wall of the assembly groove, and two guide grooves are provided and are respectively arranged at the two side edges of the inner wall of the assembly groove.

7. The drying device for an intelligent toilet according to claim 1, characterized in that: The drying device for the smart toilet further includes a driving gear; the driving gear is arranged on the output shaft of the driving motor; An outer gear ring extending circumferentially is protruded from the rear end of the outer peripheral wall of the inner sleeve; the outer gear ring is meshed with the driving gear.

8. A smart toilet, characterized in that: It comprises a drying device for a smart toilet as described in any one of claims 1-7.