Driving device, intelligent closestool cover and intelligent closestool

Abstract

The utility model relates to a driving device, an intelligent closestool cover and an intelligent closestool, the driving device is used for driving a cover body or a seat ring of the closestool cover to turn over, and the driving device comprises a shell, a motor and a transmission wheel assembly. Wherein the motor is arranged in the shell; the transmission wheel assembly is arranged in the shell and comprises a first transmission wheel, a second transmission wheel and an overload protection gear, the overload protection gear comprises an elastic assembly, an outer wheel and an inner wheel, the inner wheel is sleeved with the outer wheel, and the outer wheel is in meshing transmission with a driving shaft of the motor through the first transmission wheel; at least part of the inner wheel protrudes out of the outer wheel in the axial direction of the inner wheel so as to be meshed with the second transmission wheel, and the second transmission wheel is used for directly or indirectly driving the cover body or the seat ring to turn over; the elastic assembly is arranged between the outer wheel and the inner wheel, a limiting groove is formed in the circumferential face of the inner side of the outer wheel, the first end of the elastic assembly is fixed to the inner wheel, the second end of the elastic assembly is elastically and telescopically embedded into the limiting groove, and the outer wheel can be matched with the elastic assembly in a limiting mode through the groove wall of the limiting groove to drive the inner wheel to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent bathrooms, and in particular to a driving device, an intelligent toilet cover and an intelligent toilet. Background Art

[0002] Compared with ordinary toilets, smart toilets have more functions, such as automatic lid opening, buttocks cleaning, lower body cleaning, mobile cleaning, seat insulation, warm air drying, automatic deodorization, silent seating, etc.

[0003] Among them, the automatic flip function of the smart toilet requires a gear box or other driving device to drive the automatic flipping of the cover or seat ring. Among them, the gears of each level in the gear box work together. When the output shaft or gear is subjected to a large and sudden external force, the force will be transmitted from the output shaft to the gears of each level. In this process, some gears may not be able to withstand the excessive force and break teeth. For example, when the motor is working, an external force is used to manually pry the smart toilet cover. At this time, the gears of each level inside the gear assembly will be subjected to excessive force, causing the gears to slide relative to each other. If this action is frequent, it will destroy the transmission of the gears and cause damage to the gear assembly, which will cause the automatic flip function to fail to work properly.

[0004] BACKGROUND OF THE PRESENT APPLICATION The above information disclosed is only used to understand the background of the concept of the present application, and does not indicate or imply that it contains information of the prior art. Utility Model Content

[0005] Based on this, it is necessary to provide a driving device, a smart toilet cover and a smart toilet to address the above problems.

[0006] A driving device of a smart toilet, used to drive the cover or seat of the toilet cover to flip, comprising:

[0007] case;

[0008] A motor, wherein the motor is disposed in the housing;

[0009] A transmission wheel assembly, wherein the transmission wheel assembly is arranged in the shell, the transmission wheel assembly includes a first transmission wheel, a second transmission wheel and an overload protection gear, the overload protection gear includes an elastic component, an outer wheel and an inner wheel, the outer wheel is sleeved on the inner wheel, the outer wheel is driven by the meshing of the first transmission wheel and the driving shaft of the motor, the inner wheel at least partially protrudes from the outer wheel along the axial direction of the inner wheel to mesh with the second transmission wheel, and the second transmission wheel is used to directly or indirectly drive the cover body or the seat ring to flip; the elastic component is arranged between the outer wheel and the inner wheel, the inner side circumferential surface of the outer wheel is provided with a limiting groove, the first end of the elastic component is fixed to the inner wheel, and the second end of the elastic component can be elastically and telescopically embedded in the limiting groove, and the outer wheel can be limitedly matched with the elastic component through the groove wall of the limiting groove to drive the inner wheel to rotate.

[0010] The above-mentioned driving device of the present application can at least achieve the following beneficial effects: the transmission wheel assembly can be used to drive the flipping of the cover body or the seat ring, and the transmission wheel assembly will be subject to a certain resistance. When the resistance is small, the transmission wheel assembly can work normally. When the driving shaft of the motor drives the outer wheel through the first transmission wheel, one end of the elastic component fixed to the inner wheel is stuck in the limiting groove and abuts against the groove wall of the limiting groove. The outer wheel can drive the inner wheel to rotate through the groove wall of the limiting groove and the limiting cooperation of the elastic component. The inner wheel can drive the second transmission wheel to rotate to directly or indirectly drive the flipping of the cover body or the seat ring. When the transmission wheel assembly is subject to large external resistance, the second transmission wheel is difficult to rotate or even fixed. At this time, the second transmission wheel is connected to the second transmission wheel. The inner wheel with partially meshed wheels is also difficult to rotate and may even be fixed. Since the inner and outer wheels of the overload protection gear are transmitted through the limiting cooperation of the elastic component and the limiting groove, when the inner wheel cannot rotate due to excessive resistance and the outer wheel continues to rotate under the drive of the motor, one end of the elastic component itself can be extended and retracted relative to the limiting groove, and the elastic component can retract under the abutment of the groove wall of the limiting groove, and finally the end of the elastic component moves out of the limiting groove. At this time, the outer wheel will not drive the inner wheel, that is, the outer wheel and the inner wheel can rotate relatively, that is, the power of the outer wheel will not be transmitted to the inner wheel, which can effectively prevent the motor and the transmission wheel assembly from being damaged due to excessive external resistance and excessive load, and play a role in overload protection.

[0011] In one embodiment, the driving device includes a working mode and an overload mode; in the working mode, the load borne by the inner wheel is less than or equal to a predetermined load, and the outer wheel can cooperate with the elastic component through the groove wall of the limiting groove to drive the inner wheel to rotate; in the overload mode, the load borne by the inner wheel is greater than the predetermined load, the inner wheel can rotate inside the outer wheel, and the second end of the elastic component can retract and move out of the limiting groove under the squeezing of the groove wall of the limiting groove.

[0012] In one embodiment, the inner wheel includes a first wheel portion and a second wheel portion fixed to the first wheel portion, the first wheel portion and the second wheel portion are coaxially arranged, the second wheel portion is axially protruding along the first wheel portion and is arranged on one side of the first wheel portion, the second wheel portion is meshed with the second transmission wheel for transmission, the outer wheel is sleeved on the first wheel portion, the elastic component is arranged between the inner circumference of the outer wheel and the outer circumference of the first wheel portion, the first end of the elastic component is fixed to the first wheel portion, and the second end of the elastic component can be elastically and telescopically embedded in the limiting groove, and the outer wheel can be limited by the elastic component through the groove wall of the limiting groove to drive the first wheel portion and the second wheel portion to rotate.

[0013] In one embodiment, a mounting hole is provided on the outer circumferential surface of the first wheel portion, and the elastic component includes a ball and an elastic member. The ball is embedded in the mounting hole, and the elastic member is disposed in the mounting hole and elastically abuts against the ball so that the ball tends to extend into the limiting groove. The outer wheel and the inner wheel can rotate relative to each other, thereby preventing the outer wheel from forcibly transmitting power to the inner wheel and the motor being damaged.

[0014] In one embodiment, the elastic component further includes a mounting shell, the mounting shell is used to be inserted into the mounting hole, the mounting shell is provided with an opening, the ball is embedded in the opening, the elastic member is provided in the mounting shell, one end of the elastic member elastically abuts against the inner wall of the mounting shell, and the other end of the elastic member elastically abuts against the ball so that the ball has a tendency to protrude from the opening and extend into the limiting groove. Such a structural setting means that the elastic member and the ball can be installed in the mounting shell first, and then the subsequent assembly can be continued, that is, the elastic component as a whole can be pre-processed and assembled externally, and then the elastic component as a whole can be integrally installed into the mounting hole on the outer peripheral surface of the inner wheel, which is more convenient during production and installation.

[0015] In one embodiment, the elastic member is a compression spring.

[0016] In one embodiment, the opening of the mounting shell has a diameter smaller than the diameter of the ball to prevent the ball from escaping from the opening. Such a structural setting can prevent the ball from escaping from the opening of the mounting shell, ensure that the mounting shell, elastic member and ball of the elastic component can be fixed as a whole, and facilitate the subsequent installation of the elastic component as a whole on the inner wheel.

[0017] In one embodiment, the mounting hole is arranged along the radial extension of the inner wheel.

[0018] In one embodiment, the mounting holes and the elastic components are both provided in plurality, and the plurality of mounting holes are arranged at intervals along the circumference of the inner wheel, and the mounting holes correspond to the elastic components one by one.

[0019] In one embodiment, the inner circumferential surface of the outer wheel is provided with a plurality of limit grooves spaced apart along the circumference of the outer wheel, the number of the elastic components is set to be multiple, the multiple elastic components are spaced apart along the circumference of the inner wheel, and one elastic component corresponds to at least one limit groove. Increasing the number of limit grooves and elastic components can make the force transmission of the outer wheel more effective and uniform when driving the inner wheel.

[0020] In one embodiment, the transmission wheel assembly also includes a third transmission wheel disposed in the shell, the third transmission wheel meshes with the second transmission wheel for transmission, an output shaft extends from the middle of the third transmission wheel, and the output shaft is used to drive the toilet cover or the seat ring to flip.

[0021] In one embodiment, the inner circumferential surface of the outer wheel is provided with a plurality of limit grooves arranged at equal intervals along the circumference of the outer wheel, the number of the elastic components is set to be multiple, the multiple elastic components are arranged at equal intervals along the circumference of the inner wheel, and the elastic components correspond to the limit grooves one by one. The multiple elastic components and the multiple limit grooves are arranged at equal intervals along the circumference of the inner wheel, and such an arrangement can make the force transmission between the outer wheel and the inner wheel more uniform.

[0022] The present application also provides a smart toilet seat, which includes a driving device as described in any of the above embodiments.

[0023] The above-mentioned smart toilet cover, because it includes the driving device described in any of the above-mentioned embodiments, the above-mentioned smart toilet cover also includes at least the following beneficial effects: the transmission wheel assembly of the driving device can be used to drive the flipping of the cover body or the seat ring, and the transmission wheel assembly will be subject to a certain resistance. When the resistance is small, the transmission wheel assembly can work normally. When the driving shaft of the motor drives the outer wheel through the first transmission wheel, one end of the elastic component fixed to the inner wheel is stuck in the limiting groove and abuts against the groove wall of the limiting groove. The outer wheel can drive the inner wheel to rotate through the limiting cooperation of the groove wall of the limiting groove and the elastic component. The inner wheel can drive the second transmission wheel to rotate to directly or indirectly drive the flipping of the cover body or the seat ring; when the transmission wheel assembly is subject to large external resistance, the second transmission wheel is difficult to rotate. The inner wheel which is meshed with the second transmission wheel part is also difficult to rotate or even fixed. Since the transmission is realized between the inner wheel and the outer wheel of the overload protection gear through the limiting cooperation of the elastic component and the limiting groove, when the inner wheel cannot rotate due to excessive resistance and the outer wheel continues to rotate under the drive of the motor, one end of the elastic component itself can be extended and retracted relative to the limiting groove, and the elastic component can retract under the abutment of the groove wall of the limiting groove, and finally the end of the elastic component moves out of the limiting groove. At this time, the outer wheel will not drive the inner wheel, that is, the outer wheel and the inner wheel can rotate relatively, that is, the power of the outer wheel will not be transmitted to the inner wheel, which can effectively prevent the motor and the transmission wheel assembly from being damaged due to excessive external resistance and excessive load, and play a role in overload protection.

[0024] The present application also provides a smart toilet, which includes a toilet seat and a smart toilet cover as described in any of the above embodiments, wherein the smart toilet cover is arranged on the toilet seat.

[0025] The above-mentioned smart toilet, because it includes the driving device and smart toilet cover described in any of the above-mentioned embodiments, the smart toilet also includes at least the following beneficial effects: the transmission wheel assembly of the driving device can be used to drive the flipping of the cover body or the seat ring, and the transmission wheel assembly will be subject to a certain resistance. When the resistance is small, the transmission wheel assembly can work normally. When the driving shaft of the motor drives the outer wheel through the first transmission wheel, one end of the elastic component fixed to the inner wheel is stuck in the limiting groove and abuts against the groove wall of the limiting groove. The outer wheel can drive the inner wheel to rotate through the limiting groove wall and the elastic component. The inner wheel can drive the second transmission wheel to rotate to directly or indirectly drive the flipping of the cover body or the seat ring; when the transmission wheel assembly is subject to large external resistance, the second transmission wheel is difficult to rotate. The outer wheel is not able to rotate or even be fixed, and the inner wheel partially meshing with the second transmission wheel is also difficult to rotate or even be fixed. Since the transmission is realized between the inner wheel and the outer wheel of the overload protection gear through the limiting cooperation of the elastic component and the limiting groove, when the inner wheel cannot rotate due to excessive resistance and the outer wheel continues to rotate under the drive of the motor, one end of the elastic component itself can be extended and retracted relative to the limiting groove, and the elastic component can retract under the abutment of the groove wall of the limiting groove, and finally the end of the elastic component moves out of the limiting groove. At this time, the outer wheel will not drive the inner wheel, that is, the outer wheel and the inner wheel can rotate relatively, that is, the power of the outer wheel will not be transmitted to the inner wheel, which can effectively prevent the motor and the transmission wheel assembly from being damaged due to excessive external resistance and excessive load, and play a role in overload protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of the structure of an intelligent toilet without a flip cover provided by an embodiment of the utility model;

[0028] Figure 2 A schematic diagram of a structure of a smart toilet with a flip cover provided by an embodiment of the utility model;

[0029] Figure 3 A schematic diagram of the structure of a driving device and a seat ring provided in one embodiment of the utility model;

[0030] Figure 4 A schematic diagram of the structure of a driving device provided by one embodiment of the utility model;

[0031] Figure 5 A schematic diagram of a structure of a driving device provided by an embodiment of the utility model with part of the housing hidden;

[0032] Figure 6 Another structural schematic diagram of a driving device provided by an embodiment of the utility model with part of the housing hidden;

[0033] Figure 7 A schematic diagram of the structure of an overload protection gear provided by an embodiment of the utility model;

[0034] Figure 8 An exploded schematic diagram of an overload protection gear provided by an embodiment of the utility model;

[0035] Fig. 9 A schematic cross-sectional view of an overload protection gear provided by an embodiment of the utility model;

[0036] Fig.10 A schematic longitudinal section diagram of an overload protection gear provided by an embodiment of the utility model.

[0037] Reference numerals:

[0038] 10. Smart toilet; 11. Toilet seat; 12. Smart toilet cover; 13. Driving device; 14. Cover body; 15. Seat ring; 100. Shell; 200. Motor; 210. Drive shaft; 300. Transmission wheel assembly; 310. First transmission wheel; 320. Second transmission wheel; 330. Third transmission wheel; 331. Output shaft; 340. Overload protection gear; 341. Outer wheel; 3411. Limiting groove; 342. Inner wheel; 3421. First wheel portion; 3422. Second wheel portion; 3423. Mounting hole; 343. Elastic assembly; 3431. Elastic member; 3432. Ball bearing; 3433. Mounting shell. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0040] See also Figures 1 to 10 In some embodiments, Figures 3 to 10 As shown, the present application provides a driving device 13 of a smart toilet 10, which is used to drive Figures 1 to 3The cover body 14 or the seat ring 15 of the toilet cover shown in the figure is flipped. The driving device 13 of the smart toilet 10 may refer to a gear box, etc., which includes a housing 100, a motor 200 and a transmission wheel assembly 300. Among them, the motor 200 is arranged in the housing 100; the transmission wheel assembly 300 is arranged in the housing 100, and the transmission wheel assembly 300 includes a first transmission wheel 310, a second transmission wheel 320 and an overload protection gear 340, and the overload protection gear 340 includes an elastic component 343, an outer wheel 341 and an inner wheel 342, and the outer wheel 341 is sleeved on the inner wheel 342, and the outer wheel 341 is driven by the meshing of the first transmission wheel 310 and the driving shaft 210 of the motor 200, and the inner wheel 342 at least partially protrudes from the outer wheel 341 along the axial direction of the inner wheel 342. It is meshed with the second transmission wheel 320, and the second transmission wheel 320 is used to directly or indirectly drive the cover body 14 or the seat ring 15 to flip; the elastic component 343 is arranged between the outer wheel 341 and the inner wheel 342, and the inner circumferential surface of the outer wheel 341 is provided with a limiting groove 3411, the first end of the elastic component 343 is fixed to the inner wheel 342, and the second end of the elastic component 343 can be elastically and telescopically embedded in the limiting groove 3411, and the outer wheel 341 can be limited by the groove wall of the limiting groove 3411 and cooperate with the elastic component 343 to drive the inner wheel 342 to rotate.

[0041] The driving device 13 mentioned above in the present application can at least achieve the following beneficial effects: the transmission wheel assembly 300 can be used to drive the cover body 14 or the seat ring 15 to flip, and the transmission wheel assembly 300 will be subject to a certain resistance. When the resistance is small, the transmission wheel assembly 300 can work normally. When the driving shaft 210 of the motor 200 drives the outer wheel 341 through the first transmission wheel 310, one end of the elastic component 343 fixed to the inner wheel 342 is stuck in the limiting groove 3411 and abuts against the groove wall of the limiting groove 3411. The outer wheel 341 can drive the inner wheel 342 to rotate through the groove wall of the limiting groove 3411 and the limiting cooperation of the elastic component 343. The inner wheel 342 can drive the second transmission wheel 320 to rotate to directly or indirectly drive the cover body 14 or the seat ring 15 to flip; when the transmission wheel assembly 300 is subject to a large external resistance, the second transmission wheel 320 is difficult to rotate or even fixed. At this time, the second transmission wheel 320 is fixed to the second transmission wheel 321. 0 The partially meshed inner wheel 342 is also difficult to rotate or even fixed. Since the inner wheel 342 and the outer wheel 341 of the overload protection gear 340 are transmitted through the limiting cooperation of the elastic component 343 and the limiting groove 3411, when the inner wheel 342 cannot rotate due to excessive resistance, and the outer wheel 341 continues to rotate under the drive of the motor 200, one end of the elastic component 343 itself can be extended and retracted relative to the limiting groove 3411, and the elastic component 343 can retract under the abutment of the groove wall of the limiting groove 3411, and finally the end of the elastic component 343 moves out of the limiting groove 3411. At this time, the outer wheel 341 will not drive the inner wheel 342, that is, the outer wheel 341 and the inner wheel 342 can rotate relatively, that is, the power of the outer wheel 341 will not be transmitted to the inner wheel 342, which can effectively prevent the motor 200 and the transmission wheel assembly 300 from being damaged due to excessive external resistance and excessive load, thereby playing a role of overload protection.

[0042] Specifically, in some embodiments, the driving device 13 includes a working mode and an overload mode; in the working mode, the load borne by the inner wheel 342 is less than or equal to a predetermined load, and the outer wheel 341 can cooperate with the elastic component 343 through the groove wall of the limiting groove 3411 to drive the inner wheel 342 to rotate; in the overload mode, the load borne by the inner wheel 342 is greater than the predetermined load, the inner wheel 342 can rotate in the outer wheel 341, and the second end of the elastic component 343 can retract and move out of the limiting groove 3411 under the squeezing of the groove wall of the limiting groove 3411.

[0043] See also Figure 7 and Figure 8In some embodiments, the inner wheel 342 includes a first wheel portion 3421 and a second wheel portion 3422 fixed to the first wheel portion 3421, the first wheel portion 3421 and the second wheel portion 3422 are coaxially arranged, the second wheel portion 3422 is axially protruding from the first wheel portion 3421 and arranged on one side of the first wheel portion 3421, the second wheel portion 3422 is meshed with the second transmission wheel 320 for transmission, the outer wheel 341 is sleeved on the first wheel portion 3421, the elastic component 343 is arranged between the inner circumference of the outer wheel 341 and the outer circumference of the first wheel portion 3421, the first end of the elastic component 343 is fixed to the first wheel portion 3421, the second end of the elastic component 343 can be elastically and telescopically embedded in the limiting groove 3411, and the outer wheel 341 can be limited by the groove wall of the limiting groove 3411 and the elastic component 343 to drive the first wheel portion 3421 and the second wheel portion 3422 to rotate.

[0044] Furthermore, if Figure 8 and Fig. 9 As shown, in some embodiments, the outer circumferential surface of the first wheel portion 3421 is provided with a mounting hole 3423, the elastic component 343 includes a ball 3432 and an elastic member 3431, the ball 3432 is embedded in the mounting hole 3423, the elastic member 3431 is arranged in the mounting hole 3423 and elastically abuts against the ball 3432 so that the ball 3432 tends to extend into the limiting groove 3411. When the driving wheel assembly 300 is in working mode, the ball 3432 can at least partially extend out of the mounting hole 3423 under the elastic force of the elastic member 3431, and the ball 3432 can be stuck in the limiting groove 3411. At this time, due to the small resistance, the ball 3432 will not move out of the limiting groove 3411, and the outer wheel 341 can cooperate with the ball 3432 through the groove wall of the limiting groove 3411 to transmit the power of the outer wheel 341 to the inner wheel 342 through the elastic member 343, and then transmit the power to the second driving wheel 320 through the inner wheel 342, and finally drive the second driving wheel 320 to the second driving wheel 320. The cover body 14 or the seat ring 15 is flipped; in the overload mode, the transmission wheel assembly 300 is subjected to greater resistance, the inner wheel 342 may not be able to rotate, while the outer wheel 341 will continue to rotate driven by the motor 200 and the first transmission wheel 310, that is, the limiting groove 3411 of the outer wheel 341 will rotate relative to the elastic component 343 of the inner wheel 342, and the ball 3432 will be squeezed out of the limiting groove 3411, that is, the outer wheel 341 and the inner wheel 342 can rotate relative to each other, which can prevent the outer wheel 341 from forcibly transmitting power to the inner wheel 342, thereby avoiding damage to the transmission wheel assembly 300 and the motor 200.

[0045] Furthermore, if Figure 8 , Fig. 9 and Fig.10 As shown, in some embodiments, the elastic component 343 also includes a mounting shell 3433, the mounting shell 3433 is used to be inserted into the mounting hole 3423, the mounting shell 3433 is provided with an opening, the ball 3432 is embedded in the opening, the elastic member 3431 is provided in the mounting shell 3433, one end of the elastic member 3431 elastically abuts against the inner wall of the mounting shell 3433, and the other end of the elastic member 3431 elastically abuts against the ball 3432 so that the ball has a tendency to protrude from the opening and extend into the limiting groove 3411. Such a structural setting means that the elastic member 3431 and the ball 3432 can be installed in the mounting shell 3433 first, and then the subsequent assembly is continued, that is, the elastic component 343 as a whole can be pre-processed and assembled externally, and then the elastic component 343 as a whole can be integrally installed into the mounting hole 3423 on the outer peripheral surface of the inner wheel 342, which is more convenient during production and installation. In some of the embodiments, the elastic member 3431 may be a compression spring.

[0046] Furthermore, if Fig. 9 and Fig.10 As shown, in some embodiments, the opening of the mounting shell 3433 has a diameter smaller than the diameter of the ball 3432 to prevent the ball 3432 from escaping from the opening. Such a structural setting can prevent the ball 3432 from escaping from the opening of the mounting shell 3433, ensure that the mounting shell 3433, the elastic member 3431 and the ball 3432 of the elastic component 343 can be fixed as a whole, and facilitate the subsequent installation of the elastic component 343 as a whole on the inner wheel 342.

[0047] In some embodiments, the transmission wheel assembly 300 also includes a third transmission wheel 330 disposed in the shell 100, and the third transmission wheel 330 is meshed with the second transmission wheel 320 for transmission. An output shaft 331 extends from the middle of the third transmission wheel 330, and the output shaft 331 is used to drive the toilet cover or the seat ring 15 to flip.

[0048] In some embodiments, the mounting hole 3423 is arranged along the radial extension of the inner wheel 342 .

[0049] See also Figure 8 and Fig. 9 In some embodiments, the mounting holes 3423 and the elastic components 343 are both provided in plurality, and the plurality of mounting holes 3423 are arranged at intervals along the circumference of the inner wheel 342 , and the mounting holes 3423 correspond to the elastic components 343 one by one.

[0050] Specifically, Figure 8 and Fig. 9As shown, in some embodiments, the inner circumferential surface of the outer wheel 341 is provided with a plurality of limiting grooves 3411 spaced along the circumference of the outer wheel 341, the number of the elastic components 343 is set to be multiple, the multiple elastic components 343 are spaced along the circumference of the inner wheel 342, and one elastic component 343 corresponds to at least one limiting groove 3411. Increasing the number of limiting grooves 3411 and elastic components 343 can make the outer wheel 341 more effective and uniform in conducting force when driving the inner wheel 342.

[0051] More specifically, if Figure 8 and Fig. 9 As shown, in some embodiments, the inner circumferential surface of the outer wheel 341 is provided with a plurality of limiting grooves 3411 arranged at equal intervals along the circumference of the outer wheel 341, the number of the elastic components 343 is set to be multiple, the plurality of elastic components 343 are arranged at equal intervals along the circumference of the inner wheel 342, and the elastic components 343 correspond to the limiting grooves 3411 one by one. The plurality of elastic components 343 and the plurality of limiting grooves 3411 are arranged at equal intervals along the circumference of the inner wheel 342, and such an arrangement can make the force transmission between the outer wheel 341 and the inner wheel 342 more uniform.

[0052] In addition, if Figure 1 and Figure 2 As shown, the present application also provides a smart toilet seat 12, which includes a driving device 13 as described in any of the above embodiments.

[0053] The above-mentioned smart toilet cover 12, because it includes the driving device 13 described in any of the above-mentioned embodiments, the smart toilet cover 12 also includes at least the following beneficial effects: the transmission wheel assembly 300 of the driving device 13 can be used to drive the cover body 14 or the seat ring 15 to flip, and the transmission wheel assembly 300 will be subject to a certain resistance. When the resistance is small, the transmission wheel assembly 300 can work normally. When the driving shaft 210 of the motor 200 drives the outer wheel 341 through the first transmission wheel 310, one end of the elastic component 343 fixed to the inner wheel 342 is stuck in the limiting groove 3411 and abuts against the groove wall of the limiting groove 3411. The outer wheel 341 can drive the inner wheel 342 to rotate through the groove wall of the limiting groove 3411 and the limiting cooperation of the elastic component 343. The inner wheel 342 can drive the second transmission wheel 320 to rotate to directly or indirectly drive the cover body 14 or the seat ring 15 to flip; when the transmission wheel assembly 300 is subject to large external resistance, the second transmission wheel 320 is difficult to rotate. The inner wheel 342 partially meshed with the second transmission wheel 320 is also difficult to rotate or even fixed. Since the inner wheel 342 and the outer wheel 341 of the overload protection gear 340 are driven by the elastic component 343 and the limiting groove 3411 to realize transmission, when the inner wheel 342 cannot rotate due to excessive resistance, and the outer wheel 341 continues to rotate under the drive of the motor 200, one end of the elastic component 343 itself can extend relative to the limiting groove 3411. The outer wheel 341 and the inner wheel 342 can rotate relative to each other, that is, the power of the outer wheel 341 will not be transmitted to the inner wheel 342, which can effectively prevent the motor 200 and the transmission wheel assembly 300 from being damaged due to excessive external resistance and excessive load, and play a role of overload protection.

[0054] In addition, if Figure 1 and Figure 2 As shown, the present application also provides a smart toilet 10 , which includes a toilet seat 11 and a smart toilet cover 12 as described in any of the above embodiments, and the smart toilet cover 12 is covered on the toilet seat 11 .

[0055] The above-mentioned smart toilet 10, because it includes the driving device 13 and the smart toilet cover 12 described in any of the above-mentioned embodiments, the smart toilet 10 also includes at least the following beneficial effects: the transmission wheel assembly 300 of the driving device 13 can be used to drive the cover body 14 or the seat ring 15 to flip, and the transmission wheel assembly 300 will be subject to a certain resistance. When the resistance is small, the transmission wheel assembly 300 can work normally. When the driving shaft 210 of the motor 200 drives the outer wheel 341 through the first transmission wheel 310, one end of the elastic component 343 fixed to the inner wheel 342 is stuck in the limiting groove 3411 and abuts against the groove wall of the limiting groove 3411. The outer wheel 341 can drive the inner wheel 342 to rotate through the groove wall of the limiting groove 3411 and the limiting cooperation of the elastic component 343. The inner wheel 342 can drive the second transmission wheel 320 to rotate to directly or indirectly drive the flipping of the cover body 14 or the seat ring 15; when the transmission wheel assembly 300 is subject to a large external resistance, the second transmission wheel 320 is difficult to rotate. The inner wheel 342 partially meshed with the second transmission wheel 320 is also difficult to rotate or even fixed. Since the inner wheel 342 and the outer wheel 341 of the overload protection gear 340 are driven by the elastic component 343 and the limiting groove 3411 to realize transmission, when the inner wheel 342 cannot rotate due to excessive resistance, and the outer wheel 341 continues to rotate under the drive of the motor 200, one end of the elastic component 343 itself can be relative to the limiting groove 3411. When the outer wheel 341 is extended or retracted, the elastic component 343 can retract under the contact of the groove wall of the limiting groove 3411, and finally the end of the elastic component 343 moves out of the limiting groove 3411. At this time, the outer wheel 341 will not drive the inner wheel 342, that is, the outer wheel 341 and the inner wheel 342 can rotate relatively, that is, the power of the outer wheel 341 will not be transmitted to the inner wheel 342, which can effectively prevent the motor 200 and the transmission wheel assembly 300 from being damaged due to excessive external resistance and excessive load, and play a role in overload protection.

[0056] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0058] In the description of the present invention, it should be understood that the terms "axial", "radial", "circumferential", "length", "width", "thickness", "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] It should be noted that when an element is referred to as being "located on", "fixed on" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0063] In the description of this specification, the description of reference terms such as "one embodiment", "other implementation methods" and the like means that the specific features, structures, materials or features described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

Claims

1. A driving device for driving the cover or seat of a toilet lid to flip, characterized in that: include: case; A motor, wherein the motor is disposed in the housing; A transmission wheel assembly, wherein the transmission wheel assembly is arranged in the shell, the transmission wheel assembly includes a first transmission wheel, a second transmission wheel and an overload protection gear, the overload protection gear includes an elastic component, an outer wheel and an inner wheel, the outer wheel is sleeved on the inner wheel, the outer wheel is driven by the meshing of the first transmission wheel and the driving shaft of the motor, the inner wheel at least partially protrudes from the outer wheel along the axial direction of the inner wheel to mesh with the second transmission wheel, and the second transmission wheel is used to directly or indirectly drive the cover body or the seat ring to flip; the elastic component is arranged between the outer wheel and the inner wheel, the inner side circumferential surface of the outer wheel is provided with a limiting groove, the first end of the elastic component is fixed to the inner wheel, and the second end of the elastic component can be elastically and telescopically embedded in the limiting groove, and the outer wheel can be limitedly matched with the elastic component through the groove wall of the limiting groove to drive the inner wheel to rotate.

2. The driving device according to claim 1, characterized in that: The driving device includes a working mode and an overload mode; in the working mode, the load borne by the inner wheel is less than or equal to a predetermined load, and the outer wheel can cooperate with the elastic component through the groove wall of the limiting groove to drive the inner wheel to rotate; in the overload mode, the load borne by the inner wheel is greater than the predetermined load, the inner wheel can rotate inside the outer wheel, and the second end of the elastic component can retract and move out of the limiting groove under the squeezing of the groove wall of the limiting groove.

3. The driving device according to claim 1, characterized in that: The inner wheel includes a first wheel portion and a second wheel portion fixed to the first wheel portion, the first wheel portion and the second wheel portion are coaxially arranged, the second wheel portion is axially protruding from the first wheel portion and arranged on one side of the first wheel portion, the second wheel portion is meshed with the second transmission wheel for transmission, the outer wheel is sleeved on the first wheel portion, the elastic component is arranged between the inner circumference of the outer wheel and the outer circumference of the first wheel portion, the first end of the elastic component is fixed to the first wheel portion, the second end of the elastic component can be elastically and telescopically embedded in the limiting groove, and the outer wheel can be limitedly matched with the elastic component through the groove wall of the limiting groove to drive the first wheel portion and the second wheel portion to rotate.

4. The driving device according to claim 3, characterized in that: The outer circumferential surface of the first wheel portion is provided with a mounting hole, the elastic component includes a ball and an elastic member, the ball is embedded in the mounting hole, the elastic member is arranged in the mounting hole and elastically abuts against the ball so that the ball tends to extend into the limiting groove.

5. The driving device according to claim 4, characterized in that: The elastic component also includes a mounting shell, which is used to be inserted into the mounting hole. The mounting shell is provided with an opening, and the ball is embedded in the opening. The elastic member is arranged in the mounting shell, and one end of the elastic member is elastically abutted against the inner wall of the mounting shell, and the other end of the elastic member is elastically abutted against the ball so that the ball has a tendency to protrude from the opening and extend into the limiting groove.

6. The driving device according to claim 5, characterized in that: The elastic member is a compression spring; and / or, the diameter of the opening of the mounting shell is smaller than the diameter of the ball so as to prevent the ball from escaping from the opening; And / or, the mounting hole is arranged to extend along the radial direction of the inner wheel; And / or, the mounting holes and the elastic components are both provided in plurality, the plurality of mounting holes are arranged at intervals along the circumference of the inner wheel, and the mounting holes correspond to the elastic components one by one.

7. The driving device according to any one of claims 1 to 6, characterized in that: The inner circumferential surface of the outer wheel is provided with a plurality of limiting grooves spaced apart along the circumference of the outer wheel, the number of the elastic components is set to be multiple, the plurality of elastic components are spaced apart along the circumference of the inner wheel, and one elastic component corresponds to at least one limiting groove; And / or, the transmission wheel assembly also includes a third transmission wheel arranged in the shell, the third transmission wheel is meshed with the second transmission wheel for transmission, an output shaft is extended from the middle of the third transmission wheel, and the output shaft is used to drive the toilet cover or the seat ring to flip.

8. The driving device according to any one of claims 1 to 6, characterized in that: The inner circumferential surface of the outer wheel is provided with a plurality of limiting grooves which are arranged at equal intervals along the circumference of the outer wheel. The number of the elastic components is set to be multiple, and the multiple elastic components are arranged at equal intervals along the circumference of the inner wheel, and the elastic components correspond to the limiting grooves one by one.

9. A smart toilet seat, characterized in that: Comprising a drive device as claimed in any one of claims 1 to 8.

10. A smart toilet, characterized in that: It comprises a toilet seat and the smart toilet cover as claimed in claim 9, wherein the smart toilet cover is arranged on the toilet seat.

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