Driving system and intelligent closestool

Abstract

The utility model discloses a driving system which comprises a motor, a planetary gear train, a duplicate gear, a third gear, a fourth gear and two pawl assemblies, the duplicate gear comprises a first gear and a second gear, outer gear teeth of the first gear are meshed with outer gear teeth of the third gear, and outer gear teeth of the fourth gear are meshed with outer gear teeth of the second gear. The outer gear teeth of the second gear are meshed with the outer gear teeth of the fourth gear, the number of the outer gear teeth of the first gear is larger than that of the outer gear teeth of the third gear, the number of the outer gear teeth of the second gear is smaller than that of the outer gear teeth of the fourth gear, and the inner gear teeth of the third gear and the inner gear teeth of the fourth gear are spirally arranged. The two pawl assemblies are arranged in an inner cavity of the third gear and an inner cavity of the fourth gear respectively, and when the third gear and the fourth gear rotate, one of the two pawl assemblies slides along with rotation of the other pawl assembly. According to the driving system, one motor drives two loads to act and reset, and the size and the cost of the driving system are reduced.

Description

Technical Field

[0001] The utility model relates to the field of sanitary ware, in particular to a driving system and an intelligent toilet. Background Art

[0002] At present, in the sanitary ware industry, smart toilets with electric flip (seat cover) and flip (seat ring) functions usually use two gear boxes (including motors) to realize the flip, flip, cover closing, and ring closing functions. One gear box realizes the opening and closing of the seat cover by forward and reverse rotation, and the other gear box realizes the flip and closing of the seat ring by forward and reverse rotation. That is, two motors and two corresponding gear boxes are used to realize the four actions of flipping, closing, flipping, and closing of the smart toilet. The above solutions have the problems of high cost and large component size. Utility Model Content

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model proposes a drive system and an intelligent toilet.

[0004] According to a first aspect of the utility model, a drive system is provided, the drive system comprising a motor, a planetary gear train, a duplex gear, a third gear, a fourth gear and two pawl assemblies, the planetary gear train is arranged in the inner cavity of the duplex gear and meshes with the inner gear teeth of the duplex gear, the output shaft of the motor is connected to the sun gear of the planetary gear train, the duplex gear comprises a first gear and a second gear, the outer gear teeth of the first gear mesh with the outer gear teeth of the third gear, the outer gear teeth of the second gear mesh with the outer gear of the fourth gear, the number of teeth of the outer gear of the first gear is greater than the number of teeth of the outer gear of the third gear, the number of teeth of the outer gear of the second gear is less than the number of teeth of the outer gear of the fourth gear, the inner gear teeth of the third gear and the fourth gear are arranged in a spiral, the two pawl assemblies are rotatably arranged in the inner cavity of the third gear and the inner cavity of the fourth gear respectively, the pawl assembly comprises pawls, the planet carrier of the planetary gear train is connected to the first drive shaft, the two pawl assemblies are connected to the second drive shaft,

[0005] The spiral directions of the inner gear teeth of the third gear and the fourth gear are the same and the pawls of the two pawl assemblies are in opposite directions; or, the spiral directions of the inner gear teeth of the third gear and the fourth gear are in opposite directions and the pawls of the two pawl assemblies are in the same direction, so that when the third and fourth gears rotate, one of the two pawl assemblies rotates with it and the other slips.

[0006] In one embodiment, the ratio of the number of teeth on the outer gear of the first gear to the number of teeth on the outer gear of the third gear is 0.5-0.75.

[0007] In one embodiment, the ratio of the number of external teeth of the first gear to the number of external teeth of the third gear is 30:55.

[0008] In one embodiment, the ratio of the number of external teeth of the second gear to the number of external teeth of the third gear is 1.3 - 2.

[0009] In one embodiment, the ratio of the number of external teeth of the second gear to the number of external teeth of the third gear is 55:30.

[0010] In one embodiment, the first drive shaft and the planet carrier of the planetary gear train are integrally formed.

[0011] In one embodiment, the pawl assembly includes a pawl holder, a pawl, and a return spring. The pawl holder is rotatably sleeved outside the second drive shaft. The pawl is arranged on the pawl holder. One end of the return spring is connected to the pawl holder, and the other end of the return spring is connected to the pawl.

[0012] In one embodiment, the pawl holder is provided with a first mounting hole, the pawl is provided with a first mounting post, one end of the return spring is arranged in the first mounting hole, and the other end of the return spring is sleeved outside the first mounting post.

[0013] In one embodiment, the pawl holder is provided with a second mounting post, the pawl is provided with a second mounting hole, and the second mounting hole is sleeved on the second mounting post so that the pawl is mounted on the pawl holder.

[0014] In one embodiment, the pawl assembly further includes an end cap. The end cap is pressed on the pawl and connected to the pawl holder to prevent the pawl from falling off.

[0015] According to the second aspect of the present invention, there is provided an intelligent toilet seat, which includes the drive system, a seat cover, and a seat ring as described in the first aspect of the present invention. Both the seat cover and the seat ring are connected to the drive system.

[0016] The drive system of the present invention realizes driving two loads to act and reset by one motor, reduces the number of components, and reduces the volume and cost of the drive system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Partial exploded structural schematic diagram of the drive system provided by an embodiment of the present invention;

[0020] Figure 2 Structural schematic diagram of the third gear provided by an embodiment of the present invention;

[0021] Figure 3 Assembly schematic diagram of the third gear and the pawl assembly provided by an embodiment of the present invention;

[0022] Figure 4 Exploded structural schematic diagram of the pawl assembly provided by an embodiment of the present invention;

[0023] Figure 5 Structural schematic diagram of the pawl assembly provided by an embodiment of the present invention. Detailed implementation manners

[0024] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific implementation manners of the present invention with reference to the drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0029] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0030] In the present utility model, the clockwise and counterclockwise directions are both viewed from the direction of the motor output shaft.

[0031] Such as Figure 1 、 Figure 2 And Figure 3As shown, an embodiment of the utility model provides a drive system, the drive system includes a motor 1, a planetary gear train, a double gear, a third gear 3, a fourth gear 4 and two pawl assemblies, the planetary gear train is arranged in the inner cavity of the double gear and meshes with the inner gear teeth of the double gear, the output shaft 11 of the motor 1 is connected to the sun gear 51 of the planetary gear train, the double gear includes a first gear 21 and a second gear 22, the outer gear teeth of the first gear 21 mesh with the outer gear teeth of the third gear 3, the outer gear teeth of the second gear 22 The teeth are meshed with the outer gear of the fourth gear 4, the number of teeth of the outer gear of the first gear 21 is greater than the number of teeth of the outer gear of the third gear 3, the number of teeth of the outer gear of the second gear 22 is less than the number of teeth of the outer gear of the fourth gear 4, the inner gear teeth of the third gear 3 and the fourth gear 4 are arranged in a spiral, the two pawl assemblies are rotatably arranged in the inner cavity of the third gear 3 and the inner cavity of the fourth gear 4, the pawl assemblies include pawls, the planetary carrier 52 of the planetary gear train is connected to the first drive shaft 6, and the two pawl assemblies are connected to the second drive shaft 7. In an embodiment of the utility model, the pawl assembly arranged in the inner cavity of the third gear 3 is called the first pawl assembly, and the pawl assembly arranged in the inner cavity of the fourth gear 4 is called the second pawl assembly, the inner gear teeth of the third gear 3 and the fourth gear 4 have the same spiral direction and the pawls of the first pawl assembly and the second pawl assembly are in opposite directions; or, the inner gear teeth of the third gear 3 and the fourth gear 4 have opposite spiral directions and the pawls of the first pawl assembly and the second pawl assembly are in the same direction, so that when the third and fourth gears rotate, one of the first pawl assembly and the second pawl assembly follows the rotation, and the other slips.

[0032] The working principle of this embodiment is as follows:

[0033] Assume that neither the first drive shaft 6 nor the second drive shaft 7 is connected to a load, the inner gear teeth of the third gear 3 and the fourth gear 4 have the same spiral direction, both are clockwise spirals, and the pawl of the first pawl assembly is directed counterclockwise, while the pawl of the second pawl assembly is directed clockwise.

[0034] When the sun gear 51 is driven by the motor 1 to rotate clockwise, it will drive the planet gears of the planetary gear train to rotate counterclockwise. At this time, since the inner teeth of the double gear are driven by the planet gears and receive a counterclockwise torque, the double gear (the first gear and the second gear) rotates counterclockwise, so that the third gear 3 and the fourth gear 4 rotate clockwise. Since the inner teeth of the third gear 3 and the fourth gear 4 are arranged in a clockwise spiral, and the inner cavities of the third gear 3 and the fourth gear 4 are respectively provided with a first pawl assembly and a second pawl assembly, and the pawls of the first pawl assembly face counterclockwise, while the pawls of the second pawl assembly face clockwise. Therefore, at this time, the first pawl assembly is driven by the third gear to rotate, while the pawls of the second pawl assembly slip and cannot drive the pawl assembly to rotate. If the first drive shaft 6 is connected to a first load, the second drive shaft 7 is connected to a second load, and both loads are in the initial state. Because the number of teeth of the outer teeth of the first gear 21 of the double gear is greater than the number of teeth of the outer teeth of the third gear 3, that is, the first gear 21 driving the third gear 3 is a large gear driving a small gear. Therefore, the torque at the output end will decrease, that is, the torque output by the second drive shaft 7 is smaller than the torque output by the first drive shaft 6. Therefore, the second load will cause the first pawl assembly not to rotate, that is, the second drive shaft 7 cannot drive the second load. Therefore, when the motor rotates clockwise at this time, only the first drive shaft can drive the first load.

[0035] When the first drive shaft 6 drives the first load to act in place, that is, when the first load has been driven to its limit position and is limited and cannot move any further, the first output shaft 6 can no longer rotate, that is, the planet carrier 52 is locked. Continuing to rotate the motor 1 clockwise, the sun gear 51 rotates clockwise, driving the planet gears to rotate counterclockwise. The planet gears then drive the first gear 21 and the second gear 22 to rotate counterclockwise. The first gear 21 and the second gear 22 respectively drive the third gear 3 and the fourth gear 4 to rotate clockwise. Since the pawls of the first pawl assembly face counterclockwise and the pawls of the second pawl assembly face clockwise, the first pawl assembly can be driven by the third gear to rotate, while the second pawl assembly slips. Since the first load acts in place at this time, the second output shaft can drive the load connected to it to perform corresponding actions at this time.

[0036] When both the first load and the second load have been driven to the state where they are in place, at this time, make the motor rotate counterclockwise, driving the sun gear 51 to rotate counterclockwise, driving the planet gear to rotate clockwise. At this time, the double gear is subjected to a clockwise torque. When the double gear rotates clockwise, it drives the third gear 3 and the fourth gear 4 to rotate counterclockwise. At this time, the fourth gear 4 can drive the second pawl mechanism to rotate, while the first pawl mechanism slips. Since the second gear 22 of the double gear drives the fourth gear 4, which is a small gear driving a large gear, the fourth gear 4 obtains a greater torque. Therefore, the second drive shaft 7 obtains a greater torque than the first drive shaft 6. Therefore, the first drive shaft 6 is locked by the resistance of the first load, and the second drive shaft 7 drives the second load to reset.

[0037] When the second load is reset in place, at this time, the second drive shaft 7 is locked by the second load, and the corresponding double gear is locked. At this time, continue to rotate the motor 1 counterclockwise, driving the sun gear 51 to rotate counterclockwise, driving the planet gear to rotate clockwise. Under the action of the inner teeth of the first gear 21 of the locked double gear, the planet carrier 52 is driven to rotate counterclockwise, that is, the first output shaft 6 starts to drive the first load to reset.

[0038] It can be seen from this that in the drive system of this embodiment, by using the transmission ratios of the first gear 21 and the third gear 3, which are different from the transmission ratios of the second gear 22 and the fourth gear 4, when the motor 1 rotates, the torque output by the third gear 3 is smaller than that of the first gear 21, while the torque output by the fourth gear 4 is larger than that of the second gear 22. At the same time, because the inner teeth of the third gear 3 and the fourth gear 4 are arranged in a spiral pattern, and ratchet assemblies are respectively arranged in their inner cavities, the spiral direction of the inner teeth of the third gear and the pawl orientation of the first pawl assembly, and the spiral direction of the inner teeth of the fourth gear and the pawl orientation of the second pawl assembly, one of them is the same and the other is opposite. Thus, when the third gear 3 and the fourth gear 4 are driven, only one pawl assembly has a rotation tendency, while the other pawl assembly slips. Combining the different transmission ratios, it makes the torques output by the first drive shaft 6 and the second drive shaft 7 one large and one small during the two processes of the forward rotation and reverse rotation of the motor 1, and the magnitude relationship is opposite in the two processes (if the torque output by the first drive shaft 6 is greater than that of the second drive shaft 7 during the forward rotation of the motor 1, then the torque output by the first drive shaft 6 is less than that of the second drive shaft 7 during the reverse rotation of the motor 1). Thereby, the loads respectively connected to the first drive shaft 6 and the second drive shaft 7 are successively driven to act and reset, thus realizing the drive and reset of two loads with one motor and one set of gears, reducing the number of components, and lowering the cost and volume of the drive system.

[0039] In practical applications, it is possible to determine which drive shaft a specific load needs to be connected to based on the sequence of actions and resets of the load to be driven, the helix directions of the external teeth of the third gear and the fourth gear, and the orientations of the pawls of the corresponding pawl assemblies. For example, assume that the two loads are the seat ring and the seat cover of a smart toilet. When both the seat cover and the seat ring are closed, the seat cover needs to be opened first, and then the seat ring. After both are opened, the seat ring needs to be reset first, and then the seat cover. If the configuration of the drive system remains the same as described above, the seat cover can be connected to the first drive shaft 6, and the seat ring can be connected to the second drive shaft 7, so that when both the seat ring and the seat cover are closed, the drive system can first open the seat cover and then open the seat ring. When both the seat cover and the seat ring are opened and need to be reset, the drive system can first reset the seat ring and then reset the seat cover.

[0040] In some embodiments, the ratio of the number of teeth of the external teeth of the first gear to the number of teeth of the external teeth of the third gear is 0.5 - 0.75.

[0041] In some embodiments, the ratio of the number of teeth of the external teeth of the first gear to the number of teeth of the external teeth of the third gear is 30:55.

[0042] In some embodiments, the ratio of the number of teeth of the external teeth of the second gear to the number of teeth of the external teeth of the third gear is 1.3 - 2.

[0043] In some embodiments, the ratio of the number of teeth of the external teeth of the second gear to the number of teeth of the external teeth of the third gear is 55:30.

[0044] In some embodiments, the first drive shaft 6 and the planet carrier 52 of the planetary gear train are integrally formed.

[0045] Reference Figure 4 and Figure 5 As shown in and, in some embodiments, the pawl assembly includes a pawl holder 83, a pawl 81, and a return spring 82. The pawl holder 83 is rotatably sleeved outside the second drive shaft 7. The pawl 81 is provided on the pawl holder 83. One end of the return spring 82 is connected to the pawl holder 83, and the other end of the return spring 82 is connected to the pawl 81.

[0046] In some embodiments, the pawl holder 83 is provided with a first mounting hole 832, the pawl is provided with a first mounting post 811. One end of the return spring 82 is disposed in the first mounting hole 832, and the other end of the return spring 82 is sleeved outside the first mounting post 811.

[0047] In some embodiments, the pawl holder 83 is provided with a second mounting post 831, and the pawl 81 is provided with a second mounting hole 812. The second mounting hole 812 is sleeved on the second mounting post 831 so that the pawl 81 is mounted on the pawl holder 83.

[0048] In some embodiments, the pawl assembly further includes an end cap 84. The end cap 84 is pressed on the pawl 81 and connected to the pawl holder 83 to prevent the pawl 81 from falling off.

[0049] An embodiment of the present invention provides an intelligent toilet bowl, which includes a drive system, a seat cover and a seat ring as described in the first aspect of the present invention. Both the seat cover and the seat ring are connected to the drive system.

[0050] In some embodiments, one of the seat cover and the seat ring is connected to the first drive shaft 6, and the other is connected to the second drive shaft 7. In the drive system of the present invention, the transmission ratios of the first gear to the third gear and the second gear to the third gear are defined. Further, in combination with the spiral directions of the internal teeth of the third gear 3 and the fourth gear 4 and the orientations of the pawls of the first pawl assembly and the second pawl assembly, the driving sequence of the first load and the second load respectively connected to the two when the load is in the initial position can be determined, and after the first load and the second load are driven in place (when reaching the limit position), when the motor 1 rotates in the reverse direction, the sequence of the first drive shaft 6 and the second drive shaft 7 driving the first load and the second load to reset respectively can be determined to determine which of the seat cover and the seat ring is connected to the first drive shaft 6 and which is connected to the second drive shaft 7.

[0051] For example, when the spiral directions of the internal teeth of the third gear 3 and the fourth gear 4 are the same, both are clockwise spirals, and the orientation of the pawl of the first pawl assembly is counterclockwise and the orientation of the pawl of the second pawl assembly is clockwise, the seat cover can be connected to the first drive shaft 6 and the seat ring can be connected to the second drive shaft 7 at this time.

[0052] For example, the spiral directions of the internal teeth of the third gear 3 and the fourth gear 4 are the same, both are clockwise spirals, and the orientation of the pawl of the first pawl assembly is clockwise and the orientation of the pawl of the second pawl assembly is counterclockwise. At this time, the seat cover can be connected to the second drive shaft 6 and the seat ring can be connected to the first drive shaft 7.

[0053] For example, the orientations of the pawls of the first pawl assembly and the second pawl assembly are the same, both are clockwise, and the spiral directions of the internal teeth of the third gear 3 and the fourth gear 4 are opposite. Among them, the spiral direction of the internal teeth of the third gear 3 is counterclockwise and the spiral direction of the internal teeth of the fourth gear 4 is clockwise. At this time, the seat cover can be connected to the first drive shaft 6 and the seat ring can be connected to the second drive shaft 7.

[0054] For example, the pawls of the first pawl assembly and the second pawl assembly face the same direction, both clockwise, while the spiral directions of the inner teeth of the third gear 3 and the fourth gear 4 are opposite. The spiral direction of the inner teeth of the third gear 3 is clockwise, and the spiral direction of the inner teeth of the fourth gear 4 is counterclockwise. At this time, the seat cover can be connected to the second drive shaft 7, and the seat ring can be connected to the first drive shaft 6.

[0055] In summary, those skilled in the art can determine the sequence of the first drive shaft and the second drive shaft driving the load to act and reset during the forward and reverse rotation of the motor, and determine which drive shaft the seat cover and the seat ring need to be connected to respectively, according to the spiral directions of the inner teeth of the third gear 3 and the fourth gear 4 and the orientation of the pawls of the first pawl assembly and the second pawl assembly, without being limited to the above examples.

[0056] The above are only optional embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A drive system, characterized in that: The drive system includes a motor, a planetary gear train, a duplex gear, a third gear, a fourth gear and two pawl assemblies, the planetary gear train is arranged in the inner cavity of the duplex gear and meshes with the inner gear teeth of the duplex gear, the output shaft of the motor is connected to the sun gear of the planetary gear train, the duplex gear includes a first gear and a second gear, the outer gear teeth of the first gear mesh with the outer gear teeth of the third gear, the outer gear teeth of the second gear mesh with the outer gear of the fourth gear, the number of teeth of the outer gear of the first gear is greater than the number of teeth of the outer gear of the third gear, the number of teeth of the outer gear of the second gear is less than the number of teeth of the outer gear of the fourth gear, and the outer gear teeth of the third gear mesh with the outer gear teeth of the fourth gear. The inner gear teeth of the third gear and the fourth gear are arranged in a spiral arrangement, and the two pawl assemblies are rotatably arranged in the inner cavity of the third gear and the inner cavity of the fourth gear respectively, the pawl assembly includes a pawl, the planetary carrier of the planetary gear system is connected to the first driving shaft, and the two pawl assemblies are connected to the second driving shaft, the inner gear teeth of the third gear and the fourth gear have the same spiral direction and the pawls of the two pawl assemblies are in opposite directions, or, the inner gear teeth of the third gear and the fourth gear have opposite spiral directions and the pawls of the two pawl assemblies have the same direction, so that when the third and fourth gears rotate, one of the two pawl assemblies follows the rotation and the other slips.

2. A driving system according to claim 1, characterized in that: The ratio of the number of teeth of the first gear outer wheel to the number of teeth of the third gear outer wheel is 0.5-0.

75.

3. A driving system according to claim 2, characterized in that: The ratio of the number of teeth on the outer gear of the first gear to the number of teeth on the outer gear of the third gear is 30:

55.

4. A driving system according to claim 1, characterized in that: The ratio of the number of teeth on the outer gear of the second gear to the number of teeth on the outer gear of the third gear is 1.3-2.

5. A driving system according to claim 4, characterized in that: The ratio of the number of teeth on the outer gear of the second gear to the number of teeth on the outer gear of the third gear is 55:

30.

6. A driving system according to claim 1, characterized in that: The first drive shaft and the planet carrier of the planetary gear train are formed integrally.

7. A driving system according to claim 1, characterized in that: The pawl assembly includes a pawl frame, a pawl and a return spring. The pawl frame can be rotatably sleeved outside the second driving shaft, and the pawl is arranged on the pawl frame. One end of the return spring is connected to the pawl frame, and the other end of the return spring is connected to the pawl.

8. A driving system according to claim 7, characterized in that: The pawl frame is provided with a first mounting hole, the pawl is provided with a first mounting column, one end of the reset spring is arranged in the first mounting hole, and the other end of the reset spring is sleeved outside the first mounting column.

9. A driving system according to claim 7, characterized in that: The pawl assembly also includes an end cover, which is pressed onto the pawl and connected to the pawl frame to prevent the pawl from falling off.

10. A smart toilet, characterized in that: The smart toilet comprises the drive system, seat cover and seat ring according to any one of claims 1 to 9, and the seat cover and seat ring are both connected to the drive system.

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