Spray washing apparatus, method for oscillating spray washing, and smart toilet

Abstract

Disclosed are a spray washing apparatus, a method for implementing oscillating spray washing, and a smart toilet. The spray washing apparatus is used for gluteal washing and / or bidet washing for women, and comprises a spray washing mechanism, which comprises a spray washing body and a spray rod that can be telescopically arranged on the spray washing body in a preset direction; and further comprises a positioning seat and an oscillating driving mechanism. The spray washing body may be rotatably arranged on the positioning seat around an axis of the spray rod, and is connected to the oscillating driving mechanism, so that the oscillating driving mechanism drives the spray washing mechanism to rotate and oscillate about the axis of the spray rod. According to the present invention, a specific spray pattern can be outputted by means of rotating and oscillating to improve the flushing experience. In addition, the oscillating driving mechanism employed in the present invention is a mechanical transmission mode instead of a vibration driving mode, which can solve the problem of existing components being easily loosened and dislocated when the vibration driving mode is used.

Description

FIELD OF THE DISCLOSURE

[0001] The present disclosure relates to the field of sanitary wares, and in particular relates to a spray washing device and a method for achieving swing spray washing and a smart toilet.BACKGROUND OF THE DISCLOSURE

[0002] At present, smart toilets (also known as smart pedestal toilets) on the market is roughly divided into three types, one is a smart toilet with cleaning, heating, sterilization and so on, one is a smart toilet for automatically replacing a cover, another is a smart toilet for automatically replacing a cover and having cleaning function. Therein, the cleaning function of the smart toilet is posterior washing / feminine washing function, specifically, a spray washing device is disposed on a smart toilet lid of the smart toilet, and the posterior washing and feminine washing function are achieved using the spray washing device. The spray washing device of the existing technologies generally comprises a spray washing body, a spray bar, a telescopic motor, a switching motor, a water switching member and other components, the spray bar is telescopically disposed on the spray washing body in a preset direction and is driven by the telescopic motor, and the water switching member and the switching motor cooperate to achieve waterway switching of the spray bar. When in use, the spray bar extends outward, and a nozzle disposed on a front end thereof upwardly sprays water for posterior washing or water for feminine washing, and when no water is sprayed, the spray bar is retracted by the telescopic motor. In order to improve flushing comfort of the spray washing device, in some cases, a movement of the spray bar is in a state configure to circulate forward and backward, so that the spray bar extends outward to move forward and backward to obtain forward and backward massage water. In some cases, a vibration motor is disposed in a nozzle assembly of the spray bar, the vibration motor is used to drive the nozzle assembly of the spray bar to vibrate, so that cleaning water sprayed out of the nozzle at least swings in a transverse direction to form pulsed water in the transverse direction, thereby improving flushing experience. However, the method generating the pulsed water in the transverse direction using vibration of the vibration motor has the following deficiencies: the vibration motor vibrates for a long period, causing the nozzle assembly of the spray bar to be likely affected to cause loosened, misaligned and other problems due to vibration, thus affecting water sealing performance of the nozzle assembly, connection strength and so on, and thus reducing a service life of the spray bar.BRIEF SUMMARY OF THE DISCLOSURE

[0003] The present disclosure provides a spray washing device and a method for achieving swing spray washing and a smart toilet for addressing the existing techniques, it outputs a specified water spray pattern by rotary swing to improve flushing experiences.

[0004] A technical solution of the present disclosure to solve the technical problem is as follows: A spray washing device for posterior washing and / or feminine washing, it comprises a spray washing mechanism, the spray washing mechanism comprises a spray washing body and a spray bar telescopically disposed on the spray washing body in a preset direction; it further comprises a positioning seat and a swing driving device, the spray washing body is rotatably disposed on the positioning seat about an axis of the spray bar and is connected to the swing driving device, so that the swing driving device drives the spray washing mechanism to perform rotary swing about the axis of the spray bar.

[0005] Further, the swing driving device comprises a swing motor, a fixed seat, a swing arm and a swing transmission structure, the fixed seat is disposed on the positioning seat, the swing arm is swingably disposed on the fixed seat along a swing direction of the spray washing mechanism and is connected to the spray washing body; an output shaft of the swing motor is drivably connected to the swing arm by the swing transmission structure to drive the swing arm to swing.

[0006] Further, the swing transmission structure comprises a driving wheel and an elongated hole disposed on the swing arm, the elongated hole is disposed on a radial direction of a swing track of the swing arm, the driving wheel and / or the swing motor are disposed on the fixed seat, the driving wheel is driven by the swing motor, an eccentric part of the driving wheel comprises a driving shaft, the driving shaft is parallel to the output shaft of the swing motor, and the driving shaft is plugged in the elongated hole.

[0007] Further, the fixed seat comprises an angle-limiting structure to limit an angle of a unidirectional or bidirectional rotation of the driving wheel.

[0008] Further, the fixed seat is rotatably connected to a rotating shaft, the rotating shaft is rotatable about an axis thereof, the axis of the rotating shaft is parallel to an axis of the output shaft of the swing motor, an upper end of the swing arm is connected to the rotating shaft; and the upper end of the swing arm and the rotating shaft are assembled together by plugging using a pin shaft.

[0009] Further, the swing arm comprises a hanging portion, and a rear end of the spray washing body is hung to the hanging portion.

[0010] Further, the spray washing body comprises a shaft sleeve coaxial with the spray bar, the positioning seat comprises a shaft hole coaxial with the spray bar, and the shaft sleeve is rotatably encompassed in the shaft hole about an axis thereof.

[0011] Further, the spray washing body further comprises a telescopic motor, the spray bar is driven by the telescopic motor for extending or retracting; the spray bar comprises a waterway switching assembly, the waterway switching assembly comprises a waterway switching member movably disposed on the spray bar and a switching motor disposed on the spray bar, the waterway switching member is driven by the switching motor to enable a water inlet path disposed on the waterway switching member to be alternatively in communication with a plurality of waterways disposed on the spray bar.

[0012] The present disclosure further discloses a method for achieving swing spray washing, a spray washing mechanism for posterior washing and / or feminine washing is set in a state configured to rotate about an axis of a spray bar of the spray washing mechanism, and a swing driving device is used to drive the spray washing mechanism to perform rotary swing about the axis of the spray bar.

[0013] Further, the swing driving device comprises a swing motor, a fixed seat, a swing arm and a swing transmission structure, the swing arm is swingably disposed on the fixed seat along a swing direction of the spray washing mechanism and is connected to the spray washing body; an output shaft of the swing motor is drivably connected to the swing arm by the swing transmission structure to drive the swing arm to swing.

[0014] The present disclosure further discloses a smart toilet, it comprises the spray washing device of the present disclosure.

[0015] Compared with the existing techniques, the technical solution has the following advantages. 1. The present disclosure sets the spray washing mechanism into a state in which it can rotate about the axis of the spray bar of the spray washing mechanism, the swing driving device is used to drive the spray washing mechanism to perform rotary swing about the axis of the spray bar, so that the present disclosure can output a specified water spray pattern due to rotary swing to improve flushing experiences, further, the swing driving device of the present disclosure uses a mechanical transmission method instead of a vibration driving method, and the problems in the vibration driving method that components are easily loosen, misaligned and so on can be solved. 2. The swing driving device comprises the swing motor, the fixed seat, the swing arm and the swing transmission structure, which has a novel design, a simple structure and convenient assembly. Specially, the swing transmission structure comprises the driving wheel and the elongated hole disposed on the swing arm, which has a skillful design and a simple structure. 3. A rotary cooperation between the spray washing body and the positioning seat is achieved through the shaft sleeve and the shaft hole, which has a simple structure and convenient assembly.

[0016] The present disclosure will be further described in combination with the accompanying drawings and embodiments; however, the spray washing device and the method for achieving swing spray washing and the smart toilet of the present disclosure are not limited to the embodiments.BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Fig. 1 shows an exploded view of a spray washing device of the present disclosure; Fig. 2 shows an exploded view of a swing driving device of the present disclosure; Fig. 3 shows a main view of the swing driving device of the present disclosure; Fig. 4 shows a perspective view of the spray washing device of the present disclosure; Fig. 5 shows a sectional view of the spray washing device of the present disclosure; Fig. 6 shows an enlarged view of a part A of Fig. 5; Fig. 7 shows a main view of the spray washing device of the present disclosure in a state a spray bar extends outward; Fig. 8 shows a first water spray state of the spray washing device of the present disclosure (a side view); Fig. 9 shows a second water spray state of the spray washing device of the present disclosure (a main view, swinging left); Fig. 10 shows a third water spray state of the spray washing device of the present disclosure (main view, swinging right);

[0018] Therein, 1 spray washing mechanism, 11 spray washing body, 111 shaft sleeve, 12 spray bar, 121 axis of the spray bar, 13 telescopic motor, 14 switching motor, 15 waterway switching member, 2 positioning seat, 21 shaft hole, 3 swing driving device, 31 swing motor, 32 fixed seat, 321 socket hole, 322 angle-limiting structure, 33 swing arm, 331 elongated hole, 332 hanging portion, 333 first connecting hole, 34 driving wheel 341, driving shaft, 35 rotating shaft, 351 second connecting hole, 36 pin shaft, and 4 water column.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Embodiment, referring to Figs. 1-10, a spray washing device of the present disclosure for posterior washing and / or feminine washing, which comprises a spray washing mechanism 1, the spray washing mechanism 1 comprises a spray washing body 1 and a spray bar 12 telescopically disposed on the spray washing body 1 in a preset direction; which further comprises a positioning seat 2 and a swing driving device 3, the spray washing body 1 is rotatably disposed on the positioning seat 2 about an axis 121 of the spray bar and is connected to the swing driving device 3, so that the swing driving device 3 drives rotary swing of the spray washing mechanism 1 about the axis 121 of the spray bar. The preset direction is specifically a back and forth direction, a direction of the rotary swing of the spray washing body 1 is a left and right direction, and an angle of a unilateral rotary swing of the spray washing body 1 is roughly 0-5°, as shown in Fig. 7.

[0020] In this embodiment, the swing driving device 3 is disposed on the positioning seat 2, specifically, the swing driving device 3 comprises a swing motor 31, a fixed seat 32, a swing arm 33 and a swing transmission structure, the fixed seat 32 is disposed on the positioning seat 2, and the swing arm 33 is swingably disposed on the fixed seat 32 along a swing direction of the spray washing mechanism 1 and is connected to the spray washing body 1; an output shaft of the swing motor 31 is drivably connected to the swing arm 33 through the swing transmission structure to drive the swing arm 33 to swing. The fixed seat 32 defines a vertical type and is fixedly connected to a rear end of the positioning seat 2 by screw locking or plugging and so on (a fixed position of the fixed seat 32 is not limited to the rear end of the positioning seat 2), but it is not limited thereto, in other embodiments, the fixed seat and the positioning seat are integrally molded.

[0021] In this embodiment, referring to Fig. 2, the swing transmission structure comprises a driving wheel 34 and an elongated hole 331 disposed on the swing arm 33, the elongated hole 331 is disposed on a radial direction of a swing track of the swing arm 33, the driving wheel 34 and / or the swing motor 31 are disposed on the fixed seat 32, the driving wheel 34 is driven by the swing motor 31, an eccentric part of the driving wheel 34 comprises a driving shaft 341 (i.e., an axis of the driving shaft 341 is parallel to, but does not coincide with, an axis of the driving wheel 34), the driving shaft 341 is parallel to the output shaft of the swing motor 31, the driving shaft 341 is plugged in the elongated hole 331, a diameter of the driving shaft 341 is slightly smaller than a width of the elongated hole 331. The swing motor 31 is specifically disposed on a rear side surface of the fixed seat 32, an output shaft thereof forwardly passes through the fixed seat 32, and the driving wheel 34 fixedly encompasses the output shaft of the swing motor 31. The driving wheel 34 is specifically a cam structure, but is not limited thereto, in other embodiments, the driving wheel is an eccentric wheel structure or a circular wheel structure.

[0022] In this embodiment, the fixed seat 32 comprises an angle-limiting structure 322 to limit an angle of a unidirectional or bidirectional rotation of the driving wheel 34. The angle-limiting structure 322 is specifically used to limit an angle of a unidirectional rotation of the driving wheel 34, i.e., in a perspective view of Fig. 3, a counterclockwise rotation angle of the driving wheel 34 and a clockwise rotation angle of the driving wheel 34 are achieved by presetting a rotation angle of the swing motor 31 and automatically resetting. A setting of the angle-limiting structure 322 can ensure that a maximum angle of each counterclockwise and clockwise rotation of the driving wheel 34 always remains constant, so as to ensure whole work to be stable and reliable. In other embodiments, the present disclosure is achieved merely by setting the rotation angle of the swing motor without the angle-limiting structure.

[0023] In this embodiment, referring to Fig. 2, an upper end of the fixed seat 32 is rotatably connected to a rotating shaft 35, the rotating shaft 35 rotates about an axis thereof, the axis of the rotating shaft 35 is parallel to an axis of the output shaft of the swing motor 31, and an upper end of the swing arm 33 is connected to the rotating shaft 35. Specifically, the upper end of the swing arm 33 is connected to the rotating shaft 35 by plugging using a pin shaft 36: the upper end of the swing arm 33 comprises two first connecting holes 333 in which axes are perpendicular to the axis of the rotating shaft 35, and the two first connecting holes 333 are arranged side by side left and right; a rear end of the rotating shaft 35 is fixed to a socket hole 321 of the upper end of the fixed seat 32 by plugging, the rear end of the rotating shaft 35 comprises a second connecting hole 351, and an axis of the second connecting hole 351 is perpendicular to the axis of the rotating shaft 35; the pin shaft 36 is plugged in the two first connecting holes 333 and the second connecting hole 351, and the second connecting hole 351 is disposed between the two first connecting holes 333. The swing motor 31 is specifically a stepping motor, which is mounted at a lower end of the fixed seat 32, and a swing angle of the swing arm 33 can be adjusted by varying a position of the swing motor 31. A lower end of the swing arm 33 comprises the elongated hole 331.

[0024] In this embodiment, the swing arm 33 comprises a hanging portion 332, and a rear end of the spray washing body 1 is hung to the hanging portion 332. The hanging portion 332 is specifically disposed on lower and middle portions of a front side surface of the swing arm 33 and is higher than the elongated hole 331.

[0025] In this embodiment, the spray washing body 1 comprises a shaft sleeve 111 coaxial with the spray bar 12, the positioning seat 2 comprises a shaft hole 21 coaxial with the spray bar 12, and the shaft sleeve 111 is rotatably encompassed in the shaft hole 21 about an axis thereof. The shaft hole 21 is specifically disposed on a front end of the positioning seat 2, the shaft sleeve 111 is disposed on a front end of the spray washing body 1, and the shaft sleeve 111 on the front end of the spray washing body 1 is encompassed in the shaft hole 21 of the positioning seat 2 from back to front during an installation.

[0026] In this embodiment, the spray washing body 1 further comprises a telescopic motor 13, and the spray bar 12 is driven by the telescopic motor 13 for extending or retracting. The telescopic motor 13 is specifically drivably connected to the spray bar 12 by a gear transmission assembly, the gear transmission assembly comprises an driving gear wheel, a transmission wheel having two gears and a synchronous belt, the driving gear wheel is disposed on an output shaft of the telescopic motor 13, the driven wheel having two gears is disposed on the front end of the spray washing body 1, one wheel gear of the driven wheel having two gears is engaged with a first gear rack of the spray bar 12, and the synchronous belt surrounds the driving gear wheel and another wheel gear of the driven wheel having two gears.

[0027] In this embodiment, the spray bar 12 comprises a waterway switching assembly, the waterway switching assembly comprises a waterway switching member 15 movably disposed on the spray bar 12 and a switching motor 14 disposed on the spray bar 12, the waterway switching member 15 is driven by the switching motor 14, so that a water inlet path on the waterway switching member 15 is alternatively in communication with a plurality of waterways disposed on the spray bar 12. Specifically, the waterway switching member 15 is slidably disposed on the spray bar 12, an output shaft of the switching motor 14 comprises a switching gear wheel, and the switching gear wheel is engaged with a second gear rack disposed on the waterway switching member 15.

[0028] The spray washing device of the present disclosure in use is usually disposed on a smart toilet lid of a smart toilet. In an initial state, the swing arm 33 is maintained in a vertical direction and the spray bar 12 defines a retracted state, as shown in Figs. 4 and 5. When in use, the telescopic motor 13 is started to drive the spray bar 12 to extend forward, when water is turned on, a front end of the spray bar 12 sprays a cleaning water column 4 obliquely upward, as shown in Fig. 8. When the swing motor 31 is started, the swing motor 31 drives the driving wheel 34 to rotate a certain angle in the counterclockwise direction or the clockwise direction at a certain speed, the driving wheel 34 drives the swing arm 33 to swing in a unilateral direction (i.e., a left side or a right side) by the driving shaft 341 thereof, when the driving wheel 34 rotates a maximum angle, the motor rotates in an opposite direction to drive the driving wheel 34 to rotate a maximum angle in the opposite direction, and the swing arm 33 follows to swing in the opposite direction. The swing arm 33 swings left and right by repeatedly circulating in this way. The swing arm 33 drives the whole spray washing mechanism 1 to perform rotary swing about the axis 121 of the spray bar under guidance of the shaft hole 21 of the positioning seat 2, so that the water column 4 sprayed from the front end of the spray bar 12 also follows to swing left (as shown in Fig. 9) and / or swing right (as shown in Fig. 10).

[0029] When the spray washing mechanism 1 of the present disclosure only performs left-right rotary swing at a fixed location, a transverse linear water spray can be obtained. When the rotary swing of the present disclosure is combined with a forward and backward movement of the spray bar 12, swing angle, movement displacement and so on are controlled, water sprays with a variety of specified shapes of two-dimensional and three-dimensional patterns can be obtained. For example, when the spray washing mechanism 1 performs a unilateral rotary swing (left or right), at the same time, a movement of the spray bar 12 circulates forward and backward by a small displacement, and an elliptical water spray with a long axis in a transverse direction can be obtained; when the spray washing mechanism 1 performs left and right rotary swing, at the same time, the movement of the spray bar 12 circulates forward and backward by the small displacement, and a combined water spray shaped as "8" can be obtained.

[0030] The spray washing device of the present disclosure adopts the swing driving device 3 to drive the whole spray washing mechanism 1 to perform rotary swing about the axis 121 of the spray bar, so as to output a specified water spray pattern to improve flushing experiences, the swing driving device 3 of the present disclosure uses a mechanical transmission method instead of a vibration driving method, the problems in the vibration driving method that components are easily loosen, misaligned and so on can be solved.

[0031] A method of the present disclosure for achieving swing spray washing is as follows: the spray washing mechanism for posterior washing and / or feminine washing is set to a state configured to rotate about the axis of the spray bar of the spray washing mechanism, and the swing driving device is used to drive the spray washing mechanism to perform rotary swing about the axis of the spray bar.

[0032] In this embodiment, the swing driving device comprises the swing motor, the fixed seat, the swing arm and the swing transmission structure, the swing arm is swingably disposed on the fixed seat along the swing direction of the spray washing mechanism and is connected to the spray washing body; the output shaft of the swing motor is drivably connected to the swing arm through the swing transmission structure to drive the swing arm to swing. The swing transmission structure comprises the driving wheel and the elongated hole disposed on the swing arm, the elongated hole is disposed on the radial direction of the swing track of the swing arm, the driving wheel and / or the swing motor are disposed on the fixed seat, the driving wheel is driven by the swing motor, the eccentric part of the driving wheel comprises the driving shaft, the driving shaft is parallel to the output shaft of the swing motor, and the driving shaft is plugged in the elongated hole.

[0033] A method of the present disclosure for achieving swing spray washing can be achieved by using the spray washing device of the present disclosure, and a detailed working principle thereof is described above and will not be repeated herein.

[0034] A smart toilet of the present disclosure comprises a spray washing device of the present disclosure.

[0035] The spray washing device, the method for achieving swing spray washing and the smart toilet of the present disclosure, undisclosed parts are the same as the existing techniques or can be achieved using the existing techniques.

[0036] The terms "upper", "lower", "front", "rear", "left", "right" and so on indicate orientations or positional relationships based on orientations or positional relationships shown in the accompanying drawings merely used to describe the description of the present disclosure and simplify the description instead of indicating or implying that referred parts should have a specified orientation and be constructed and operated in the specified orientation, and therefore cannot be understood as a limitation of the present disclosure.

[0037] The aforementioned embodiments are merely the spray washing device, the method for achieving swing spray showing and the smart toilet of the present disclosure, and the disclosure is not limited to the embodiments, it is intended that the scope of the present disclosure cover any of simple variations, equivalents and modifications of the aforementioned embodiments based on the technical substance of the present disclosure.INDUSTRIAL APPLICABILITY

[0038] The present disclosure discloses the spray washing device, the method for achieving swing spray washing and the smart toilet of the present disclosure, the spray washing device for posterior washing and / or feminine washing, it comprises a spray washing mechanism, the spray washing mechanism comprises a spray washing body and a spray bar telescopically disposed on the spray washing body in a preset direction; it further comprises a positioning seat and a swing driving device, the spray washing body is rotatably disposed on the positioning seat about an axis of the spray bar and is connected to the swing driving device, so that the swing driving device drives the spray washing mechanism to perform rotary swing about the axis of the spray bar. The present disclosure can output a specified water spray pattern due to rotary swing to improve flushing experiences, further, the swing driving device of the present disclosure uses a mechanical transmission method instead of a vibration driving method, the problems in the vibration driving method that components are easily loosen, misaligned and so on can be solved, and it has the industrial applicability.

Claims

1. A spray washing device for posterior washing and / or feminine washing, it comprises a spray washing mechanism, the spray washing mechanism comprises a spray washing body and a spray bar telescopically disposed on the spray washing body in a preset direction; characterized in that: it further comprises a positioning seat and a swing driving device, the spray washing body is rotatably disposed on the positioning seat about an axis of the spray bar and is connected to the swing driving device, so that the swing driving device drives the spray washing mechanism to perform rotary swing about the axis of the spray bar.

2. The spray washing device according to claim 1, characterized in that: the swing driving device comprises a swing motor, a fixed seat, a swing arm and a swing transmission structure, the fixed seat is disposed on the positioning seat, the swing arm is swingably disposed on the fixed seat along a swing direction of the spray washing mechanism and is connected to the spray washing body; an output shaft of the swing motor is drivably connected to the swing arm by the swing transmission structure to drive the swing arm to swing.

3. The spray washing device according to claim 2, characterized in that: the swing transmission structure comprises a driving wheel and an elongated hole disposed on the swing arm, the elongated hole is disposed on a radial direction of a swing track of the swing arm, the driving wheel and / or the swing motor are disposed on the fixed seat, the driving wheel is driven by the swing motor, an eccentric part of the driving wheel comprises a driving shaft, the driving shaft is parallel to the output shaft of the swing motor, and the driving shaft is plugged in the elongated hole.

4. The spray washing device according to claim 3, characterized in that: the fixed seat comprises an angle-limiting structure to limit an angle of a unidirectional or bidirectional rotation of the driving wheel.

5. The spray washing device according to claim 2, <b>characterized in that: the fixed seat is rotatably connected to a rotating shaft, the rotating shaft is rotatable about an axis thereof, the axis of the rotating shaft is parallel to an axis of the output shaft of the swing motor, an upper end of the swing arm is connected to the rotating shaft; and the upper end of the swing arm and the rotating shaft are assembled together by plugging using a pin shaft.

6. The spray washing device according to claim 2, characterized in that: the swing arm comprises a hanging portion, and a rear end of the spray washing body is hung to the hanging portion.

7. The spray washing device according to claim 1, characterized in that: the spray washing body comprises a shaft sleeve coaxial with the spray bar, the positioning seat comprises a shaft hole coaxial with the spray bar, and the shaft sleeve is rotatably encompassed in the shaft hole about an axis thereof.

8. The spray washing device according to claim 1, <b>characterized in that: the spray washing body further comprises a telescopic motor, the spray bar is driven by the telescopic motor for extending or retracting; the spray bar comprises a waterway switching assembly, the waterway switching assembly comprises a waterway switching member movably disposed on the spray bar and a switching motor disposed on the spray bar, the waterway switching member is driven by the switching motor to enable a water inlet path disposed on the waterway switching member to be alternatively in communication with a plurality of waterways disposed on the spray bar.

9. A method for achieving swing spray washing, characterized in that: a spray washing mechanism for posterior washing and / or feminine washing is set in a state configured to rotate about an axis of a spray bar of the spray washing mechanism, and a swing driving device is used to drive the spray washing mechanism to perform rotary swing about the axis of the spray bar.

10. The method for achieving the swing spray washing according to claim 9, characterized in that: the swing driving device comprises a swing motor, a fixed seat, a swing arm and a swing transmission structure, the swing arm is swingably disposed on the fixed seat along a swing direction of the spray washing mechanism and is connected to the spray washing body; an output shaft of the swing motor is drivably connected to the swing arm by the swing transmission structure to drive the swing arm to swing.

11. A smart toilet, characterized in that: it comprises the spray washing device according to any one of claims 1-8.

12. A spray washing device of a toilet for posterior washing and / or feminine washing, it comprises a spray washing mechanism, the spray washing mechanism comprises a spray washing body and a spray bar telescopically disposed on the spray washing body in a preset direction; characterized in that: it further comprises a positioning seat and a swing driving device, the spray washing body is connected to the swing driving device, the swing driving device is pivotally connected to the positioning seat to drive the spray washing mechanism to swing.

13. The spray washing device according to claim 12, <b>characterized in that: the swing driving device comprises a swing arm and a swing transmission structure, the swing arm is pivotally connected to an upper end of the positioning seat, and the swing arm is connected to the spray washing body; and the swing transmission structure is drivably connected to the swing arm to drive the swing arm to swing.

14. The spray washing device according to claim 13, characterized in that: the swing transmission structure comprises a driving wheel and an elongated hole disposed on the swing arm, the elongated hole is disposed on a radial direction of a swing track of the swing arm, the driving wheel and / or the swing motor are disposed on the positioning seat, the driving wheel is driven by the swing motor, an eccentric part of the driving wheel comprises a driving shaft, the driving shaft is parallel to an output shaft of the swing motor, and the output shaft is plugged in the elongated hole.

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