Rotary control device, toilet lid assembly, and intelligent toilet

Abstract

The application provides a rotating control device, a toilet cover assembly and an intelligent toilet. The rotating control device comprises a housing, an output shaft, a driving motor and a slow descent spring. The output shaft is rotatably arranged in the housing. The driving motor is arranged in the housing. The slow descent spring is wound around the output shaft. The slow descent spring has a winding direction. One end of the slow descent spring is connected to the output shaft. The other end of the slow descent spring is connected to the housing. The slow descent spring is selectively tightened or released under the driving of the output shaft. The slow descent spring has a cross-sectional width dimension along the axial direction of the slow descent spring. The cross-sectional width dimension of at least part of the slow descent spring increases along the winding direction. The sharp change of the torque of the overturning component is inhibited by the slow descent spring with variable cross section. The synthesized torque changes gently with the change of the overturning angle. The load of the driving motor changes gently during the overturning process of the overturning component. The service life of the driving motor is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of driving device, in particular to a rotating control device, a toilet cover assembly and an intelligent toilet. BACKGROUND

[0002] The current driving device is widely used in the technical field of bathroom equipment, for example, it is applied to an intelligent toilet. The output shaft of the driving device is in transmission connection with a turnover component, which can be a cover body, a seat ring or the like of the intelligent toilet. The driving device can be used to control the turnover of the turnover component, so that the turnover component is in a closed or opened state, thereby facilitating the use of the user.

[0003] At present, due to the limitation of the structure of the driving device itself, when the driving device controls the turnover of the turnover component, the torque of the turnover component changes sharply with the change of the centroid position, thereby causing the load of the driving motor and the transmission mechanism of the driving device to change sharply, and the service life of the driving motor is reduced. SUMMARY

[0004] The present application provides a rotating control device, a toilet cover assembly and an intelligent toilet to solve the above problems.

[0005] The present application achieves the above-mentioned purposes through the following technical solutions.

[0006] In a first aspect, the present application provides a rotating control device, which comprises a housing, an output shaft, a driving motor and a slow descent spring. The output shaft is rotatably arranged in the housing. The driving motor is arranged in the housing and in transmission cooperation with the output shaft. The slow descent spring is wound around the output shaft. The slow descent spring has a winding direction. One end of the slow descent spring is connected to the output shaft, and the other end is connected to the housing, so as to be selectively tightened or released under the driving of the output shaft. The slow descent spring has a cross-sectional width dimension along the axial direction of the slow descent spring. The cross-sectional width dimension of at least part of the slow descent spring increases along the winding direction.

[0007] In a second aspect, the present application further provides an intelligent toilet assembly, which comprises a mounting body, a turnover component and the above-mentioned rotating control device. The turnover component is rotatably connected to the mounting body. The housing is fixedly connected to the mounting body. The output shaft is in transmission connection with the turnover component. Alternatively, the housing is fixed to the turnover component, and the output shaft is fixedly connected to the turnover component.

[0008] When the output shaft rotates relative to the housing, the rotating control device is used to drive the turnover component to rotate relative to the mounting body along a first circumferential direction to an opened state, or along a second circumferential direction to a closed state. The first circumferential direction and the second circumferential direction are opposite to each other. When the turnover component rotates relative to the mounting body along the second circumferential direction, the slow descent spring is used to generate a torque along the first circumferential direction.

[0009] In a third aspect, the embodiments of the present application further provide a smart toilet, comprising a toilet body and the toilet cover assembly provided in the second aspect, and the toilet cover assembly is installed on the toilet body.

[0010] Compared with the prior art, the rotating control device, the toilet cover assembly and the smart toilet provided by the present application have the following advantages. The buffering spring is wound on the output shaft, one end of the buffering spring is connected to the output shaft, and the other end of the buffering spring is connected to the housing. The buffering spring can generate a torque along the first circumferential direction. When applied to the toilet cover assembly and the smart toilet, the influence of the gravity of the overturning part can be reduced, so that the output power of the driving motor is reduced. In addition, because the torque of the overturning part changes sharply due to the change of the center of mass of the overturning part during the overturning process, the sharp change of the torque of the overturning part can be inhibited by increasing the variable cross-section buffering spring, so that the synthesized torque changes gently with the change of the overturning angle. During the overturning process of the overturning part, the load of the driving motor and the transmission mechanism changes gently, which is beneficial to improve the service life of the driving motor. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0012] Figure 1 is a force analysis diagram of the overturning part of an existing smart toilet under the torque generated by its own gravity and different overturning angles.

[0013] Figure 2 is a change curve diagram of the cosα value under different overturning angles as shown in Figure 1 .

[0014] Figure 3 is a change curve of the torque generated by the overturning part of the smart toilet under different overturning angles as shown in Figure 1 .

[0015] Figure 4 is a change curve of the torque of the existing helical spring under different overturning angles without pre-pressing and without pre-pressing.

[0016] Figure 5It is the torque change curve of the existing smart toilet's flipping component under its own weight, the torque change curve of the existing coil spring, and the combined curve of the torque change curve of its own weight and the torque change curve of the existing coil spring.

[0017] Figure 6 This is a structural schematic diagram of the smart toilet provided in the embodiment of this application in the closed state.

[0018] Figure 7 Is it like this? Figure 6 The diagram shown is a structural schematic of the smart toilet in its open state.

[0019] Figure 8 Is it like this? Figure 6 The diagram shows the structure of the rotary control device in the smart toilet.

[0020] Figure 9 Is it like this? Figure 8 The diagram shows the structure of the rotation control device after the housing has been removed.

[0021] Figure 10 Is it like this? Figure 8 A schematic cross-sectional view of the rotation control device shown.

[0022] Figure 11 Is it like this? Figure 8 The diagram shows the output shaft, deceleration spring, and rear housing of the rotation control device in the disassembled state.

[0023] Figure 12 Is it like this? Figure 8 The diagram shown is a schematic of the structure in its assembled state.

[0024] Figure 13 Is it like this? Figure 11 The diagram shows the output shaft, the deceleration spring, and the structure in the split state.

[0025] Figure 14 Is it like this? Figure 12 A partial structural diagram of the structure shown.

[0026] Figure 15 This is a schematic diagram of another type of deceleration spring provided in the embodiments of this application.

[0027] Figure 16 Is it like this? Figure 15 The diagram shows the dimensions of the deceleration spring.

[0028] Figure 17The torque variation curve of the turnover component of the intelligent toilet under the action of its own gravity, the torque variation curve of the slow descent spring, and the variation curve of the turnover component under the action of the torque variation curve of the slow descent spring are provided. DETAILED DESCRIPTION

[0029] In order to enable personnel in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] In the turnover process of the turnover component, the inventor finds that the torque of the turnover component changes sharply with the change of the position of its center of mass, thereby causing the load of the driving motor of the driving device to change sharply, and the whole driving motor operates unstably. Moreover, the existing intelligent toilet applies a torque of a certain size to the turnover component by the spiral spring and the driving motor, thereby driving the turnover component to turn to the turned-up state. Furthermore, the inventor finds that the torque of the existing spiral spring combined with the torque of the turnover component under the action of its own gravity changes sharply with the turnover angle.

[0031] As shown in Figure 1 Fig. 1 is a force analysis diagram of the torque of the turnover component under its own gravity and different turnover angles. As can be seen from the figure, the torque T1 of the turnover component under its own gravity is L*A*cosα, L is the distance from the center of mass of the turnover component to the rotation center of the turnover component, A is the weight of the turnover component itself, and α is the turnover angle. As shown in Figure 2 Fig. 2 is a variation curve diagram of the cosα value under different turnover angles. As can be seen from the figure, the cosα value gradually decreases from the turnover angle 0° to 90°. As shown in Figure 3 Fig. 3 is a variation curve a of the torque T1 under different turnover angles. The torque T1 gradually decreases from the turnover angle 0° to 90°. As shown in Figure 4 Fig. 4 is a variation curve b of the torque T2 of the existing spiral spring under no pre-pressing (i.e., the spiral spring is not subjected to external pre-pressing force), and Fig. 5 is a variation curve c of the torque T2 of the existing spiral spring under no pre-pressing. As can be seen from the figures, the variation curves of the torque T2 of the spiral spring under pre-pressing and no pre-pressing are both inclined lines. As shown in Figure 5The synthesis curve d shown is synthesized by the curve a and the curve b, and the synthesis curve d is the torque required by the driving motor to turn the turning part to different turning angles. It can be seen from the synthesis curve d that the torque of the driving motor is sharply increased and then sharply decreased during the process that the turning angle is from 0° to 30°, which causes the load of the driving motor to be suddenly large and suddenly small, so that the driving motor is not very stable. The slope of the synthesis curve d during the process that the turning angle is from 30° to 90° is very large, which indicates that the change of the torque of the driving motor is relatively sharp during the turning process, so that the load of the driving motor is also changed very sharply. Obviously, during the whole turning process, it is not conducive to control the turning movement of the turning part by the driving motor.

[0032] Therefore, the inventor further invests in research, which at least includes the structure of the slow descent spring in the rotation control device, the structure size and shape of the slow descent spring, the number of turns of the slow descent spring, and the cross-sectional width change of the slow descent spring. After a large amount of research and analysis, the inventor proposes the rotation control device, the toilet cover assembly, and the intelligent toilet provided in the embodiments of the present application.

[0033] The embodiments of the present application provide a rotation control device, which comprises a housing, an output shaft, a driving motor and a slow descent spring. The output shaft is rotatably arranged in the housing. The driving motor is arranged in the housing and is in transmission cooperation with the output shaft. The slow descent spring is arranged around the output shaft. The slow descent spring has a winding direction. One end of the slow descent spring is connected to the output shaft, and the other end is connected to the housing, so as to be selectively tightened or released under the driving of the output shaft. The slow descent spring has a cross-sectional width size along the axial direction of the slow descent spring. The cross-sectional width size of at least part of the slow descent spring increases along the winding direction.

[0034] When the rotation control device provided in the present application is applied to the toilet cover assembly, the slow descent spring is arranged around the output shaft, one end of the slow descent spring is connected to the output shaft, and the other end is connected to the housing. The slow descent spring can generate a torque along the first circumferential direction. When applied to the toilet cover assembly and the intelligent toilet, the influence of the gravity of the turning part can be reduced, so as to reduce the output power of the driving motor. At the same time, since the change of the position of the center of mass of the turning part during the turning process causes the sharp change of the torque of the turning part, the sharp change of the torque of the turning part can be inhibited by increasing the variable cross-section slow descent spring, so that the synthesized torque changes gently with the change of the turning angle. During the whole turning process of the turning part, the load of the driving motor and the transmission mechanism changes gently, which is conducive to improving the service life of the driving motor.

[0035] Please refer to Figure 5The embodiment provides a rotating control device 200, a toilet cover assembly 300 and an intelligent toilet 400. The intelligent toilet 400 comprises the toilet cover assembly 300 and a toilet body 410. The intelligent toilet 400 can have functions of washing, washing for women, drying and self-cleaning.

[0036] In the embodiment, the toilet body 410 is in a barrel structure, and the toilet body 410 is provided with a bowl opening. The toilet cover assembly 300 is installed on the toilet body 410 and can selectively cover or open the bowl opening.

[0037] Please refer to Figure 6 and Figure 7 In the embodiment, the toilet cover assembly 300 comprises a mounting body 310, a turnover part 320 and the rotating control device 200. The turnover part 320 is rotationally connected to the mounting body 310 and can be selectively turned to a covering state (as shown in Figure 5 ) or a turning-open state (as shown in Figure 6 ). The mounting body 310 is detachably mounted on the toilet body 410. In the covering state, the turnover part 320 covers the upper end surface of the toilet body 410 and covers the main bowl opening. In the turning-open state, the turnover part 320 is turned to an opening angle relative to the toilet body 410, and the opening angle can be greater than or equal to 80°, for example, the opening angle can be greater than or equal to 90°. The turnover part 320 can comprise at least one of a seat ring and an intelligent toilet cover body. Hereinafter, the turnover part 320 is taken as an example comprising the intelligent toilet cover body for description:

[0038] In the embodiment, the mounting body 310 is provided with a receiving space and a through hole in communication with the receiving space. The through hole is used for mounting an output shaft structure of the rotating control device 200. The turnover part 320 is connected to the output shaft structure and can be turned around the through hole. The receiving space can be used for mounting the rotating control device 200, a main control board, a flushing assembly and other components.

[0039] Please refer to Figure 8 and Figure 9 In the embodiment, the rotating control device 200 comprises a housing 210, an output shaft 220, a driving motor 230, a transmission mechanism 240 and a slow descent spring 250. The output shaft 220 is rotationally arranged in the housing 210. The driving motor 230 is arranged in the housing 210. The transmission mechanism 240 is transmissionally matched with a rotating shaft of the driving motor 230 and the output shaft 220, so as to drive the output shaft 220 to rotate under the driving of the driving motor 230. The slow descent spring 250 is wound on the output shaft 220. One end of the slow descent spring 250 is connected to the output shaft 220, and the other end is connected to the housing 210, so as to be selectively tightened or released under the driving of the output shaft 220.

[0040] It should be noted that the housing 210 can be fixedly connected to the mounting body 310, and the output shaft 220 is drivingly connected to the overturning member 320, or the housing 210 is fixed to the overturning member 320, and the output shaft 220 is fixedly connected to the overturning member 320. When the output shaft 220 rotates under the driving force of the driving motor 230, the overturning member 320 can overturn relative to the mounting body 310 along with the output shaft 220.

[0041] Hereinafter, the housing 210 is fixedly connected to the mounting body 310, and the output shaft 220 is drivingly connected to the overturning member 320 as an example for specific description:

[0042] Please refer to Figure 7 and Figure 10 In this embodiment, the housing 210 of the rotation control device 200 can be installed in the receiving space of the mounting body 310, the housing 210 includes a front shell 211 and a rear shell 212, the front shell 211 and the rear shell 212 together enclose a mounting space 213, the front shell 211 is provided with an assembly hole 2131 in communication with the mounting space 213, the assembly hole 2131 is used for mounting the output shaft 220, and the assembly hole 2131 is opposite to the through hole of the mounting body 310, so that the output shaft 220 of the rotation control device 200 extends out of the through hole.

[0043] Please refer to Figure 9 and Figure 10 In this embodiment, the driving motor 230 is installed in the mounting space 213 and can be fixed to the inner wall of the rear shell 212. The output shaft 220 is rotatably arranged in the housing 210, and the output shaft 220 includes a driving end 221 and a driving end 222 connected to each other, the driving end 222 is located in the mounting space 213 and is drivingly matched with the driving motor 230 through the transmission mechanism 240, and the driving end 221 extends out of the mounting space 213 through the assembly hole 2131 to be drivingly connected with the overturning member 320.

[0044] In some embodiments, as Figure 9 and Figure 10As shown, the transmission mechanism 240 can be a drive gear, a transmission belt or a transmission sprocket, etc. Exemplarily, the transmission mechanism 240 comprises a worm gear and worm set 241, a speed reduction gear set 242 and an output gear 243, the output gear 243 is fixed to the output shaft 220 and spaced from the slow descent spring 250, the speed reduction gear set 242 is engaged between the output gear 243 and the worm gear and worm set 241. Since the transmission ratio of the worm gear and worm set 241 is large, the output shaft 220 can output a larger torque to ensure the smooth turning of the turning part 320, and the structure of the worm gear and worm set 241 is compact, which can reduce the occupied space. Since the worm gear 2411 and worm 2412 set has self-locking property, it can lock the output shaft 220, thereby ensuring that the turning part 320 remains in the turned-on state.

[0045] Exemplarily, the worm gear and worm set 241 comprises a worm gear 2411, a worm 2412 and a transmission gear 2413, the worm 2412 is fixedly connected to the rotating shaft of the drive motor 230 and engaged with the worm gear 2411, and the transmission gear 2413 is coaxially fixedly connected with the worm gear 2411. Specifically, the speed reduction gear set 242 comprises a first double gear 2421, a second double gear 2422 and an intermediate gear 2423. The second double gear 2422 is arranged side by side and spaced from the output gear 243, and the second double gear 2422 is rotatably connected to the housing 210. Each of the first double gear 2421 and the second double gear 2422 comprises a large gear and a small gear connected in series, the diameter of the addendum circle of the large gear is larger than that of the small gear, and the module of the convex tooth of the large gear is larger than that of the small gear. The first double gear 2421 is rotatably connected to the housing 210 and located between the output gear 243 and the second double gear 2422, the small gear of the first double gear 2421 is engaged with the large gear of the second double gear 2422, the large gear of the first double gear 2421 is engaged with the transmission gear 2413, and the intermediate gear 2423 is coaxially arranged with the first double gear 2421 and engaged with the small gear of the second double gear 2422. The first double gear 2421 and the second double gear 2422 can ensure the stability of transmission and increase the torque of the output shaft 220 to ensure the reliability of the turning part 320 during opening and closing. The speed of the drive motor 230 can be reduced by the speed reduction gear set 242, and the output shaft 220 can drive the turning part 320 to open and close smoothly at a relatively gentle speed. In addition, the drive motor 230 can also be directly transmitted with the output gear 243 through the first double gear 2421 or the second double gear 2422.

[0046] In the present embodiment, the slow descent spring 250 is a volute spring, and the slow descent spring 250 is wound around the transmission end 222 of the output shaft 220, for example, the number of winding turns of the slow descent spring 250 around the outer periphery of the output shaft 220 can be two turns or more, for example, the number of winding turns can be an odd number of turns or an even number of turns. In addition, the number of winding turns of the slow descent spring 250 around the outer periphery of the output shaft 220 can also be a single turn or a non-integer number of turns (for example, 1 / 2 turn, 3 / 2 turn, etc.). Specifically, the number of winding turns of the slow descent spring 250 can be set according to the torque required to be borne by the slow descent spring 250, so that it can be applied to different specifications and types of intelligent toilet 400.

[0047] In the present embodiment, the slow descent spring 250 can be a planar volute spring or other types of volute structure. Under the action of torsion, the spring material of the planar slow descent spring 250 produces bending elastic deformation, causing the spring to twist in the plane, and the size of the deformation angle is proportional to the torque. The planar slow descent spring can be a non-contact planar slow descent spring or a contact planar volute spring.

[0048] In the present embodiment, the slow descent spring 250 includes a spring coil body 2511 wound around the output shaft 220 at least one turn, and the projections of at least two spring coil bodies 2511 along the radial direction of the slow descent spring 250 at least partially overlap. For example, the slow descent spring 250 includes two adjacent spring coil bodies 2511, and the projection of one of the adjacent spring coil bodies 2511 along the radial direction of the slow descent spring 250 can fully overlap the projection of the other. In this way, the two adjacent spring coil bodies 2511 can be stacked as much as possible in the axial direction of the slow descent spring 250, reducing the width dimension of the slow descent spring 250 in the axial direction. In the present embodiment, the spring coil body 2511 is a sheet structure with a relatively small thickness, for example, the maximum cross-sectional width dimension of the spring coil body 2511 can be greater than or equal to 3 times or more than 3 times the thickness of the spring coil body 2511, which can be adjusted according to actual needs.

[0049] In the embodiment, one end of the slow descent spring 250 is fixedly connected to the transmission end 222, and the other end can be fixedly connected to the rear shell 212. When the output shaft 220 rotates relative to the shell 210, the rotary control device 200 can drive the turnover component 320 to turn relative to the mounting body 310 along a first circumferential direction X1 to an open state, or along a second circumferential direction X2 to a closed state, the first circumferential direction X1 and the second circumferential direction X2 are opposite directions. When the turnover component 320 turns relative to the mounting body 310 along the second circumferential direction X2, the slow descent spring 250 is tightened, the turns of the slow descent spring 250 can be in close contact and are all tightly wound around the outer periphery of the output shaft 220, and thus the slow descent spring 250 can generate a torque along the first circumferential direction X1. The torque along the first circumferential direction X1 generated by the slow descent spring 250 can partially offset the gravity of the turnover component 320, so that the driving motor 230 only needs to output a smaller torque to drive the turnover component 320 to turn along the first circumferential direction X1 to the open state against the torque generated by the gravity of the turnover component 320, thereby reducing the output power of the driving motor 230.

[0050] In the embodiment, when the turnover component 320 is in the closed state, the torque along the first circumferential direction X1 generated by the slow descent spring 250 is smaller than the weight of the turnover component 320. For example, when the torque along the first circumferential direction X1 generated by the slow descent spring 250 is smaller than the torque generated by the gravity of the intelligent toilet cover, the intelligent toilet cover can be kept in the closed state under the action of its own weight. When the driving motor 230 generates a torque along the first circumferential direction X1 to the intelligent toilet cover, the torque generated by the driving motor 230 and the torque along the first circumferential direction X1 generated by the slow descent spring 250 jointly act to overcome the torque generated by the gravity of the intelligent toilet cover, thereby driving the intelligent toilet cover to turn to the open state.

[0051] Please refer to Figure 13 and Figure 14 In the embodiment, the slow descent spring 250 can be connected to the transmission end 221 and the rear shell 212 by clamping. Specifically, the slow descent spring 250 includes an elastic turn 251, a first connecting part 253, and a second connecting part 254. The elastic turn 251 is wound around the outer periphery of the output shaft 220. The elastic turn 251 includes a plurality of spring turns 2511, which are connected in sequence and wound around the outer periphery of the output shaft 220. In the embodiment, the first connecting part 253 is connected to the innermost end of the elastic turn 251, and the first connecting part 253 can be bent relative to the innermost end, which can be bent to be substantially parallel to the radial direction of the elastic turn 251. The output shaft 220 is provided with a clamping groove part 223, and the first connecting part 253 is embedded in the clamping groove part 223 to be clamped with the output shaft 220.

[0052] In the embodiment, the second connecting part 254 is connected to the outermost end of the elastic ring body 251 and is clamped with the shell 210. Specifically, the rear shell 212 is provided with a clamping groove structure 2121, the opening of the clamping groove structure 2121 is arranged towards the output shaft 221, the second connecting part 254 is bent relative to the outermost end of the elastic ring body 251, and the second connecting part 254 can be bent to be substantially parallel to the radial direction of the elastic ring body 251, and the second connecting part 254 can be clamped into the clamping groove structure 2121 from the opening.

[0053] In addition, the slow descent spring 250 can also be connected with the transmission end 221 and the rear shell 212 by means of fastening, welding or the like.

[0054] Please continue to refer to Figure 13 and Figure 14 In the embodiment, the clamping groove part 223 includes a first resisting wall 2231 and a second resisting wall 2232, the first resisting wall 2231 and the second resisting wall 2232 are arranged at an angle along the circumferential direction of the output shaft 220, and the angle β between the first resisting wall 2231 and the second resisting wall 2232 can be greater than or equal to 90°, or the first resisting wall 2231 and the second resisting wall 2232 can also be arranged in parallel and spaced apart, and the angle β between them is 0°, and the angle can be adjusted according to actual needs to meet different idle strokes of the turnover part 320. The first connecting part 253 is connected to the abutment on the first resisting wall 2231 or the second resisting wall 2232.

[0055] When the output shaft 220 of the driving motor 230 rotates along the first circumferential direction X1, it can bring the turnover part 320 to turn relative to the mounting body 310 along the second circumferential direction X2 to the closed state, and in this process, the first connecting part 253 abuts on the first resisting wall 2231, and under the action of the first resisting wall 2231, the first connecting part 253 constantly tightens the elastic ring body 251, and the slow descent spring 250 generates a torque along the first circumferential direction X1 on the turnover part 320. When the output shaft 220 of the driving motor 230 rotates along the second circumferential direction X2, it can bring the turnover part 320 to turn relative to the mounting body 310 along the first circumferential direction X1 to the open state, and in this process, the first connecting part 253 of the slow descent spring 250 will abut on the first resisting wall 2231, and through the output shaft 220, a torque along the first circumferential direction X1 is applied to the turnover part 320, so that the driving motor 230 only needs to apply a smaller torque along the first circumferential direction X1 to the turnover part 320 to overcome the torque generated by the weight of the turnover part 320, so that the turnover part 320 is turned over. Since the first resisting wall 2231 and the second resisting wall 2232 are arranged at an angle along the circumferential direction of the output shaft 220, the slow descent spring 250 can continue to move by means of the angle to apply a torque to the turnover part 320 to increase the opening and closing angle of the turnover part 320.

[0056] Referring to Figure 15 and Figure 16 In the embodiment, the slow descent spring 250 has a cross-sectional width dimension W along the axial direction of the slow descent spring 250, and the cross-sectional width dimension W of at least part of the slow descent spring 250 gradually increases along the winding direction of the slow descent spring 250, and the slow descent spring 250 is of a variable cross-section structure. The winding direction refers to the direction in which the slow descent spring 250 is wound from the outermost end to the innermost end. Since the torque of the turnover component 320 changes sharply due to the change of the mass center position during the turnover, the sharp change of the turnover torque can be inhibited by increasing the variable cross-section slow descent spring 250, so that the combined torque changes gently with the change of the turnover angle, and the load of the driving motor 230 and the transmission mechanism 240 changes gently during the turnover of the entire turnover component 320, which is beneficial to improve the service life of the driving motor 230 and the transmission mechanism 240.

[0057] Referring to Figure 15 and Figure 16 In the embodiment, the cross-sectional width dimension W can gradually increase from the outermost end of the slow descent spring 250 along the winding direction of the slow descent spring 250. For example, the cross-sectional width dimension W of the outermost part of the slow descent spring 250 gradually increases from the outermost end of the slow descent spring 250 along the winding direction of the slow descent spring 250, and the cross-sectional width dimension of the remaining part of the slow descent spring 250 can be substantially equal everywhere. Since the driving motor 230 needs to be more gentle at the starting stage, when the slow descent spring 250 is at a smaller turnover angle (for example, the turnover angle is less than or equal to 30°), since the cross-sectional width dimension W of the outermost part of the slow descent spring 250 gradually increases from the outermost end of the slow descent spring 250 along the winding direction of the slow descent spring 250, the torque of the slow descent spring 250 at a smaller turnover angle and the torque of the gravity of the turnover component 320 form a more gentle combined curve after being combined, so that the driving motor 230 works very stably at the starting stage, and the output shaft 220 can drive the turnover component 320 to turn more gently, and the cross-sectional width dimension of the remaining part of the slow descent spring 250 is the same, which ensures the gentle change of the torque of the driving motor 230 at the subsequent turnover angle. In addition, the cross-sectional width dimension W can gradually increase from the outermost end to the innermost end of the slow descent spring 250, which can be set according to actual needs. The cross-sectional width dimension has a maximum width dimension W2 and a minimum width dimension, and the minimum width dimension W2 is less than or equal to 1 / 2 of the maximum width dimension W1.

[0058] In some embodiments, as Figure 15 and Figure 16As shown, the slow descent spring 250 has opposite first side surface 252 and second side surface 255 along its axial direction, the first side surface 252 is arranged around the output shaft 220, and the second side surface 255 is arranged around the output shaft 220, the spacing between the first side surface 252 and the second side surface 255 defines the cross-sectional width dimension, wherein the first side surface 252 and / or the second side surface 255 is arranged in a spiral around the output shaft 220. Exemplarily, the second side surface 255 can be substantially planar, which can be substantially parallel to the radial direction of the output shaft 220. The first side surface 252 includes a bevel surface, which is arranged obliquely relative to the second side surface 255 when the slow descent spring 250 is fully flattened. The outer side edge 2521 and the inner side edge 2522 of the first side surface 252 can have a height difference along the axial direction of the slow descent spring 250. When the slow descent spring 250 is fully flattened, the outer side edge 2521 and the inner side edge 2522 can each include a curved edge or a straight edge, for example, the outer side edge 2521 can include an arc-shaped curve, and the inner side edge 2522 includes a straight edge, which can slow down the change of the cross-sectional width dimension of the slow descent spring 250, so as to make the torque change more uniform, and ensure that the torque of the driving motor 230 changes uniformly. The first side surface 252 is arranged in a spiral around the output shaft 220, and the spacing between the first side surface 252 and the second side surface 255 can gradually increase, so as to gradually increase the cross-sectional width dimension W. In this way, during the manufacturing process, one side of the sheet body can be beveled to form the first side surface 252, and then the beveled sheet body is wound to form the slow descent spring 250, so that the first side surface 252 is arranged in a spiral, which can reduce the processing difficulty.

[0059] It should be noted that the maximum torque T of the slow descent spring 250 is positively correlated with the cross-sectional width dimension W of the slow descent spring 250 and the thickness of the slow descent spring 250. The initial torque T of the slow descent spring 250 is positively correlated with the minimum cross-sectional width dimension W1 of the slow descent spring 250. The increment size of the torque T of the slow descent spring 250 is positively correlated with the inclination angle γ of the first side surface 252 relative to the second side surface 255. Therefore, the corresponding size of the slow descent spring 250 can be adjusted according to actual needs. The inclination angle γ is the included angle between the first side surface 252 and the second side surface 255, for example, the inclination angle γ is greater than 0° and less than 60°, which can ensure that the increment of the torque T of the slow descent spring 250 is relatively gentle.

[0060] As Figure 17As shown, when the flipping component 320 is flipped relative to the mounting body 310 to a flipping angle α, the torque generated by the deceleration spring 250 along the first circumferential direction X1 is equal to the torque Tα generated by the weight of the flipping component 320 at the flipping angle α, where Tα=L*A*cosα, where L is the distance from the center of mass of the flipping component 320 to the rotation center of the flipping component 320, and A is the weight of the flipping component 320. The flipping angle α is less than 90°, for example, the flipping angle α is greater than or equal to 70° and less than or equal to 80°.

[0061] like Figure 17 As shown, curve e is the torque curve generated by the decelerating spring during the flipping process. This torque curve is approximately a cosine curve segment. The composite curve f is the torque curve resulting from the combination of the torque curve generated by the decelerating spring and the torque curve generated by the flipping component under its own gravity. Figure 17 As can be seen, the composite curve f is approximately a gentle straight line with a low slope. The composite torque curve is the torque change of the drive motor 230 under different flip angles. Therefore, the torque of the drive motor 230 changes smoothly with the change of flip angle, making the drive motor 230 run smoothly and facilitating the control of the flipping motion of the flipping component 320 by the drive motor 230.

[0062] In some embodiments, when the flipping component 320 is flipped to the open state relative to the mounting body 310, the deceleration spring 250 can generate torque along the second circumferential direction X2. Thus, when the drive motor 230 stops operating, the flipping component 320 can maintain its open state under the action of the deceleration spring 250, preventing the flipping component 320 from continuing to flip to a larger opening angle. For example... Figure 17 As shown, when the flipping component is flipped to 90°, the deceleration spring 250 can generate a torque of -0.2 Nm along the second circumferential direction X2. When the drive motor 230 stops working, the torque generated by the deceleration spring 250 can maintain the flipping component 320 in the open state.

[0063] The rotating control device 200, the toilet cover assembly 300 and the intelligent toilet provided by the application have the following advantages: the slow descent spring 250 is wound on the output shaft 220, one end of the slow descent spring 250 is connected to the output shaft 220, and the other end is connected to the shell 210; the slow descent spring 250 can generate a torque along the first circumferential direction X1, so as to reduce the influence of gravity on the turnover component 320, thereby reducing the output power of the driving motor 230; due to the change of the centroid position of the turnover component 320 during the turnover process, the torque of the turnover component 320 changes sharply; the torque curve generated by the slow descent spring 250 with a variable cross-section design during the turnover process is approximately a cosine curve segment; therefore, the torque curve generated by the slow descent spring 250 and the torque curve generated by the turnover component 320 under the action of gravity after composition is approximately a gentle straight line; the torque curve after composition is the torque change of the driving motor 230 corresponding to different turnover angles; therefore, the sharp change of the turnover torque can be inhibited by increasing the variable cross-section slow descent spring 250, so that the torque after composition changes gently with the change of the turnover angle; during the turnover process of the turnover component 320, the load of the driving motor 230 and the transmission mechanism 240 changes gently, which is beneficial to improving the service life of the driving motor 230 and the transmission mechanism 240.

[0064] The above examples are only used to illustrate the technical solutions of the application, but not to limit the same; although the application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; the modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the examples of the application, and should be included in the protection scope of the application.

Claims

1. A rotary control device, characterized by, The application relates to a rotating control device, which comprises the following components: a housing; an output shaft rotatably arranged in the housing; the output shaft is provided with a clamping groove part extending along the circumference of the output shaft, the clamping groove part comprises a first blocking wall and a second blocking wall, the first blocking wall and the second blocking wall are oppositely arranged along the circumference of the output shaft; a driving motor arranged in the housing and connected with the output shaft; and a slow descent spring, which comprises an elastic ring body, a first connecting part and a second connecting part, the elastic ring body is wound around the output shaft, the first connecting part and the second connecting part are respectively connected to the two ends of the elastic ring body; the slow descent spring has a curling direction, the first connecting part is connected to the output shaft, the second connecting part is connected to the housing, and the slow descent spring is selectively tightened or released under the driving of the output shaft; the slow descent spring has a cross-sectional width dimension along the axial direction of the slow descent spring, the cross-sectional width dimension of at least part of the slow descent spring gradually increases along the curling direction; the slow descent spring has opposite first and second side surfaces along the axial direction, the first and second side surfaces are arranged around the output shaft, and the cross-sectional width dimension is the distance between the first and second side surfaces. The cross-sectional width dimension of the outermost part of the slow descent spring gradually increases along the curling direction, and the cross-sectional width dimension of the remaining part of the slow descent spring is equal everywhere. The distance between the first blocking wall and the second blocking wall is greater than the thickness of the first connecting part, the first connecting part is movably arranged between the first blocking wall and the second blocking wall, and the first connecting part can move between the first blocking wall and the second blocking wall when the output shaft moves.

2. The rotational control device of claim 1, wherein The slow descent spring has opposite first and second side surfaces along the axial direction, and the first side surface comprises an inclined surface which is arranged to be inclined relative to the second side surface after the slow descent spring is completely unfolded.

3. The rotational control device of claim 2, wherein, The first side surface comprises an outer edge and an inner edge, and the outer edge and the inner edge have a height difference along the axial direction of the slow descent spring, and the outer edge comprises a straight edge or a curved edge.

4. The rotational control device of claim 2, wherein The inclination angle of the inclined surface relative to the second side surface is greater than 0° and less than 90°.

5. The rotational control device of claim 1, wherein, The slow descent spring comprises an elastic ring body, a first connecting part and a second connecting part, the elastic ring body is wound around the outer periphery of the output shaft, the first connecting part is connected to the innermost end of the elastic ring body and connected with the output shaft, and the second connecting part is connected to the outermost end of the elastic ring body and connected with the housing.

6. A toilet lid assembly characterized by, The toilet cover assembly comprises a mounting body, a turnover part and the rotating control device as claimed in any one of claims 1-5, the turnover part is rotationally connected to the mounting body, the housing is fixedly connected to the mounting body, and the output shaft is drivingly connected with the turnover part, or the housing is fixed to the turnover part, and the output shaft is fixedly connected to the turnover part. When the output shaft rotates relative to the housing, the rotation control device drives the turnover component to rotate relative to the mounting body along a first circumferential direction to an open state or along a second circumferential direction to a closed state, the first circumferential direction and the second circumferential direction being opposite to each other, and the slow descent spring generates a torque along the first circumferential direction when the turnover component rotates relative to the mounting body along the second circumferential direction.

7. The toilet lid assembly of claim 6, wherein, When the turnover component rotates relative to the mounting body to the open state, the slow descent spring generates a torque along the second circumferential direction.

8. The toilet lid assembly of claim 6, wherein, When the turnover component is in the closed state, the torque along the first circumferential direction generated by the slow descent spring is less than the weight of the turnover component.

9. An intelligent toilet characterized by comprising: The intelligent toilet comprises a toilet body and the toilet cover assembly according to any one of claims 6-8, and the toilet cover assembly is mounted on the toilet body.

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