Combination pump and intelligent closestool

Abstract

The embodiment of the utility model relates to the technical field of combination pumps, in particular to a combination pump and an intelligent closestool. The combination pump comprises a shell, an impeller mechanism, a pump tooth mechanism and a driving mechanism. The shell is provided with a first pump cavity and a second pump cavity which are arranged separately. The impeller mechanism is arranged in the first pump cavity. The pump tooth mechanism is arranged in the second pump cavity. The driving mechanism comprises a power assembly and a driving shaft, the power assembly is installed on the shell and connected with the driving shaft, at least part of the driving shaft is located in the first pump cavity and the second pump cavity, and the driving shaft is connected with the impeller mechanism and the pump tooth mechanism. The power assembly is used for driving the driving shaft to rotate so as to drive at least partial structures of the impeller mechanism and the pump tooth mechanism to rotate. When the driving shaft rotates in the first rotating direction, the driving shaft drives the impeller mechanism and the pump tooth mechanism to work. And when the driving shaft rotates in the second rotating direction, the driving shaft drives the pump tooth mechanism to work. The first rotating direction is opposite to the second rotating direction. Through the structure, the structure of the combination pump is simplified.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of compound pumps, and in particular to a compound pump and a smart toilet. Background Art

[0002] Smart toilets cater to today's demand for more personalized bathrooms. They are a new product that combines a microcomputer digital processing system with traditional flush toilets. They aim to resolve the conflicting issues of hygiene, pollution, and environmental protection.

[0003] During the development of this application, the inventors discovered that currently, smart toilets consist of a flushing module and a cleaning module. The flushing module includes a water pump and a water outlet, with the water pump supplying water to the outlet for flushing, the toilet's primary function. The cleaning module includes a gear pump and a cleaning port, which replaces paper for cleaning local areas of the human body and the inner walls of the toilet bowl. The combined use of these two modules in a smart toilet requires two control modules to control the water pump and gear pump separately, resulting in a complex structure. Utility Model Content

[0004] The embodiments of the present application aim to provide a compound pump and an intelligent toilet, which can improve the current situation in which intelligent toilets need to have two sets of control modules to control the water pump and the gear pump respectively, resulting in a complex structure.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: a compound pump is provided. The compound pump includes a casing, an impeller mechanism, a pump tooth mechanism and a drive mechanism. The casing has a first pump chamber and a second pump chamber that are separated. The impeller mechanism is arranged in the first pump chamber. The pump tooth mechanism is arranged in the second pump chamber. The drive mechanism includes a power assembly and a drive shaft. The power assembly is installed in the casing and connected to the drive shaft. At least part of the drive shaft is located in the first pump chamber and the second pump chamber. The drive shaft is connected to the impeller mechanism and the pump tooth mechanism respectively. The power assembly is used to drive the drive shaft to rotate to drive at least part of the structure of the impeller mechanism and the pump tooth mechanism to rotate. When the drive shaft rotates in the first rotation direction, the drive shaft drives the impeller mechanism and the pump tooth mechanism to work. When the drive shaft rotates in the second rotation direction, the drive shaft drives the pump tooth mechanism to work. The first rotation direction and the second rotation direction are opposite.

[0006] In some embodiments, the impeller mechanism includes: an impeller, a gear, and an elastic member. The impeller is provided with a first tooth. The gear is in transmission connection with the drive shaft, and the gear is provided with a second tooth, and the first tooth and the second tooth cooperate with each other. The elastic member is sleeved on the drive shaft, one end of the elastic member abuts against the housing, and the other end of the elastic member abuts against the other surface of the gear away from the impeller. Under the action of the elastic member, the gear abuts against the impeller. When the drive shaft drives the gear to rotate in the first rotation direction, the first tooth and the second tooth remain engaged, so that the gear drives the impeller to rotate. When the drive shaft drives the gear to rotate in the second rotation direction, the first tooth and the second tooth rotate relative to each other, so that the gear rotates relative to the impeller.

[0007] In some embodiments, the first tooth includes a first tooth surface and a second tooth surface, and the second tooth includes a third tooth surface and a fourth tooth surface. When the drive shaft drives the gear to rotate in a first rotational direction, the first tooth surface and the third tooth surface abut against each other, causing the gear to drive the impeller to rotate. When the drive shaft drives the gear to rotate in a second rotational direction, the second tooth surface and the fourth tooth surface slide relative to each other, causing the gear to rotate relative to the impeller.

[0008] In some embodiments, on a first tooth, the second tooth surface has a first abutment portion and a second abutment portion, the first abutment portion being closer to the first tooth surface than the second abutment portion, and the first abutment portion being closer to the tooth tip of the first tooth than the second abutment portion. On a second tooth, the fourth tooth surface has a third abutment portion and a fourth abutment portion, the third abutment portion being closer to the third tooth surface than the fourth abutment portion, and the third abutment portion being closer to the tooth tip of the second tooth than the second abutment portion.

[0009] In some embodiments, the second tooth surface includes at least one of an inclined surface, a curved surface, or an arc surface.

[0010] In some embodiments, the fourth tooth surface includes at least one of an inclined surface, a curved surface, or an arcuate surface.

[0011] In some embodiments, the impeller is provided with a first through-hole, the gear is provided with a second through-hole and a first limiting structure, the first limiting structure is located at the second through-hole, the drive shaft of the drive mechanism is provided with a second limiting structure, the drive shaft of the drive mechanism is passed through the first through-hole and the second through-hole, and the first limiting structure and the second limiting structure cooperate. When the drive shaft rotates in a first rotational direction, the drive shaft rotates relative to the first through-hole. When the drive shaft rotates in a second rotational direction, the drive shaft slides and rotates relative to the first through-hole.

[0012] In some embodiments, the gear includes a gear plate and a gear shaft, the gear shaft is fixed to one surface of the gear plate, the second through hole passes through the gear plate and the gear shaft, the second tooth is arranged on the other surface of the gear plate, the elastic member is sleeved on the gear shaft, and the elastic member abuts against one surface of the gear plate.

[0013] In some embodiments, a surface of the toothed disc is further provided with a limiting member, the limiting member and the gear shaft are spaced apart, and a portion of the elastic member is accommodated in the space between the limiting member and the gear shaft.

[0014] In some embodiments, the shell is provided with a limiting groove, the limiting groove is located in the first pump chamber, the drive shaft passes through the limiting groove, one end of the elastic member is accommodated in the limiting groove, and one end of the elastic member abuts the bottom of the limiting groove.

[0015] In some embodiments, the drive shaft is provided with an annular groove. The compound pump further comprises a limiting ring, which is clamped in the annular groove and abuts against the surface of the impeller away from the gear.

[0016] To solve the above technical problems, another technical solution adopted by this application is: a smart toilet is also provided, comprising the above compound pump. A controller is electrically connected to the power assembly, and the controller is used to control the power assembly to drive the drive shaft to rotate in a first rotation direction or a second rotation direction.

[0017] The beneficial effect of the embodiments of the present application is that, unlike the prior art, the embodiments of the present application provide a compound pump. The compound pump includes a housing, an impeller mechanism, a pump tooth mechanism, and a drive mechanism. The housing has a first pump chamber and a second pump chamber that are separated from each other. The impeller mechanism is arranged in the first pump chamber. The pump tooth mechanism is arranged in the second pump chamber. The drive mechanism includes a power assembly and a drive shaft. The power assembly is mounted on the housing and connected to the drive shaft. At least part of the drive shaft is located in the first pump chamber and the second pump chamber. The drive shaft is connected to the impeller mechanism and the pump tooth mechanism respectively. The power assembly is used to drive the drive shaft to rotate to drive at least part of the structure of the impeller mechanism and the pump tooth mechanism to rotate. When the drive shaft rotates in the first rotation direction, the drive shaft drives the impeller mechanism and the pump tooth mechanism to work. When the drive shaft rotates in the second rotation direction, the drive shaft drives the pump tooth mechanism to work. The first rotation direction and the second rotation direction are opposite. Through the above structure, the impeller mechanism and the pump tooth mechanism are stacked along the axial direction of the drive shaft, and the same drive shaft can drive the impeller mechanism located in the first pump chamber to work, thereby flushing the toilet; or, the drive shaft drives the pump tooth mechanism located in the second pump chamber to work, thereby cleaning the human body or the toilet, so that only the rotation of the drive shaft needs to be controlled, thereby simplifying the structure of the compound pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. 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 the drawings without creative work.

[0019] Figure 1 is a perspective view of a compound pump provided in one embodiment of the present application;

[0020] Figure 2 This application provides Figure 1 A-side cross-sectional view;

[0021] Figure 3 This application provides Figure 1 B-side cross-section of;

[0022] Figure 4 This is a partial exploded view of a compound pump provided in one embodiment of the present application;

[0023] Figure 5 This is another partial exploded view of a compound pump provided in one embodiment of the present application. The reference numerals of the compound pump 1000 of the present application are as follows:

[0024]

[0025] DETAILED DESCRIPTION

[0026] To facilitate understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it may be directly on the other element, or one or more intervening elements may be present therebetween. When an element is described as being "connected to" another element, it may be directly connected to the other element, or one or more intervening elements may be present therebetween.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0028] The present application provides a smart toilet (not shown in the figure), which includes a toilet body (not shown in the figure), a compound pump 1000, a water supply mechanism (not shown in the figure), a first water outlet mechanism (not shown in the figure), and a second water outlet mechanism (not shown in the figure). The compound pump 1000, the water supply mechanism, the first water outlet mechanism, and the second water outlet mechanism are installed on the toilet body. The compound pump 1000 is connected to the water supply mechanism so that the water supply mechanism supplies water to the compound pump 1000, and the compound pump 1000 is connected to the first water outlet mechanism and the second water outlet mechanism respectively. Among them, the first water outlet mechanism is used for flushing. As the basic function of the smart toilet, the water output of the first water outlet mechanism is relatively greater than the water output of the second water outlet mechanism; and the second water outlet mechanism is used for washing, which can wash the human body or clean the toilet body. As for how to improve the current situation in which two sets of control modules are required in smart toilets to control the water pump and the gear 220 pump respectively, which is complicated in structure, it is based on the improvement of the aforementioned compound pump 1000. Please refer to the following for details.

[0029] In some embodiments, see Figures 1 to 3 The compound pump 1000 includes a housing 100, an impeller mechanism 200, a pump gear mechanism 300 and a drive mechanism 400. The impeller mechanism 200, the pump gear mechanism 300 and the drive mechanism 400 are all mounted on the housing 100, and the drive mechanism 400 is transmission-connected to the impeller mechanism 200 and the pump gear mechanism 300.

[0030] In some embodiments, the housing 100 has a first pump chamber 101 and a second pump chamber 102 that are separately arranged.

[0031] In some embodiments, the impeller mechanism 200 is disposed in the first pump chamber 101 .

[0032] In some embodiments, the pump tooth mechanism 300 is disposed in the second pump chamber 102 .

[0033] In some embodiments, the driving mechanism 400 includes a power assembly 410 and a drive shaft 420. The power assembly 410 is installed on the housing 100 and connected to the drive shaft 420. At least part of the drive shaft 420 is located in the first pump chamber 101 and the second pump chamber 102. The drive shaft 420 is respectively connected to the impeller mechanism 200 and the pump gear mechanism 300. The power assembly 410 is used to drive the drive shaft 420 to rotate to drive at least part of the structure of the impeller mechanism 200 and the pump gear mechanism 300 to rotate.

[0034] In conjunction with the above embodiment, when the drive shaft 420 rotates in the first rotation direction F1, the drive shaft 420 drives the impeller mechanism 200 and the pump gear mechanism 300 to operate. When the drive shaft 420 rotates in the second rotation direction F2, the drive shaft 420 drives the pump gear mechanism 300 to operate. The first rotation direction F1 and the second rotation direction F2 are opposite.

[0035] It should be noted that the operation of the impeller mechanism 200 or the pump gear mechanism 300 means that the impeller mechanism 200 or the pump gear mechanism 300 outputs water flow under the drive of the drive shaft 420 .

[0036] Through the above structure, the drive shaft 420 can drive the impeller mechanism 200 located in the first pump chamber 101 to rotate, thereby flushing the toilet; or the drive shaft 420 can drive the pump gear mechanism 300 located in the second pump chamber 102 to rotate, thereby cleaning the human body or the toilet. Therefore, only the rotation of the drive shaft 420 is required to control the flushing of the toilet or the flushing of the human body, respectively. This simplifies the structure of the compound pump 1000, reduces the space occupied by the entire compound pump 1000, and reduces costs. Therefore, the above-mentioned smart toilet including the compound pump 1000 also has the above-mentioned technical effects.

[0037] In some embodiments, the impeller mechanism 200 and the pump gear mechanism 300 are stacked along the axial direction of the drive shaft 420. This facilitates the same drive shaft 420 to drive the impeller mechanism 200 located in the first pump chamber 101 to rotate, thereby flushing the toilet; or the drive shaft 420 drives the pump gear mechanism 300 located in the second pump chamber 102 to rotate, thereby cleaning the human body or the toilet. Within the toilet body, the impeller mechanism 200 and the pump gear mechanism 300 are arranged along the axial direction of the drive shaft 420, so that the impeller mechanism 200 and the pump gear mechanism 300 are stacked. On the one hand, this allows the impeller mechanism 200 and the pump gear mechanism 300 to be controlled separately by simply controlling the rotation of the same drive shaft 420. On the other hand, it allows the compound pump 1000 to fully utilize the internal space of the toilet body axially along the drive shaft 420, thereby improving space utilization.

[0038] In some embodiments, see Figure 2 and Figure 3 , and in conjunction with other drawings. The housing 100 is further provided with an installation cavity 104, a first water inlet 105, a second water inlet 106, a first water outlet 107, and a second water outlet 108. The installation cavity 104, the first pump cavity 101, and the second pump cavity 102 are independently provided. The first water inlet 105 and the first water outlet 107 are connected to the first pump cavity 101, and the second water inlet 106 and the second water outlet 108 are connected to the second pump cavity 102. The driving mechanism 400 is arranged in the installation cavity 104, and the driving shaft 420 of the driving mechanism 400 is at least partially located in the first pump cavity 101 and the second pump cavity 102. The driving shaft 420 of the driving mechanism 400 is respectively connected to the impeller 210 assembly and the pump tooth mechanism 300. The driving mechanism 400 is used to drive the impeller mechanism 200 and the pump tooth mechanism 300 to rotate so that the liquid medium enters the first pump cavity 101 from the first water outlet 107 and is output from the first water outlet 107, or the liquid medium enters the second pump cavity 102 from the second water outlet 108 and is output from the second water outlet 108.

[0039] It is worth mentioning that the first pump chamber 101, where the impeller mechanism 200 is located, is connected to the water supply mechanism via the first water inlet 105 and to the first water outlet mechanism via the first water outlet 107. The second pump chamber 102, where the pump gear mechanism 300 is located, is connected to the water supply mechanism via the second water inlet 106 and to the second water outlet mechanism via the second water outlet 108. The first pump chamber 101 and the second pump chamber 102 are separated by a drive mechanism 400.

[0040] For the housing 100, see Figure 2 and Figure 3 , and in conjunction with other figures. The housing 100 serves as the mounting base for the entire compound pump 1000. It not only provides a foundation for the installation of other components, but also isolates the first pump chamber 101, the mounting chamber 104, and the second pump chamber 102 from the external environment. In some embodiments, the housing 100 includes a first shell 109, a second shell 110, a third shell 111, and a fourth shell 112.

[0041] In some embodiments, the first housing 109 and the second housing 110 together enclose the aforementioned mounting chamber 104 for mounting the drive mechanism 400. The drive shaft 420 extends from the first pump chamber 101 relative to the first housing 109, and the drive shaft 420 extends from the second pump chamber 102 relative to the second housing 110. The third housing 111 and the first housing 109 together enclose the first pump chamber 101, and the fourth housing 112 and the second housing 110 together enclose the second pump chamber 102.

[0042] In some embodiments, the third housing 111 can also enclose the first pump chamber 101 and be mounted on the first housing 109; the fourth housing 112 can also enclose the second pump chamber 102 and be mounted on the second housing 110, thereby improving the sealing effect of the first pump chamber 101 or the second pump chamber 102 and reducing liquid leakage. It is understood that in order to facilitate the impeller mechanism 200 to drive the liquid flow, the third housing 111 is configured as a volute, so that the liquid can rotate along the inner wall of the third housing 111 under the drive of the impeller 210.

[0043] In some embodiments, see Figure 3 The compound pump 1000 further includes a mainboard 600. The second housing 110 further defines a receiving space 1101. The receiving space 1101 communicates with the mounting cavity 104 and is separated from the first pump cavity 101 and the second pump cavity 102. The mainboard 600 is electrically connected to the drive mechanism 400 to control the rotation of the drive shaft 420.

[0044] See also Figure 4 and Figure 5, and in conjunction with other drawings, how the aforementioned compound pump 1000 can achieve control of the impeller mechanism 200 and the pump gear mechanism 300 respectively by only controlling the rotation of the drive shaft 420 .

[0045] In some embodiments, the impeller mechanism 200 includes an impeller 210 , a gear 220 and an elastic member 230 . The impeller 210 and the gear 220 cooperate with each other, and the elastic member 230 elastically acts on the gear 220 to make the gear 220 abut against the impeller 210 .

[0046] In some embodiments, the impeller 210 is provided with first teeth 211, and the gear 220 is in driving connection with the drive shaft 420. The gear 220 is provided with second teeth 221, and the first teeth 211 and the second teeth 221 cooperate. An elastic member 230 is sleeved on the drive shaft 420. One end of the elastic member 230 abuts against the housing 100, and the other end of the elastic member 230 abuts against the other surface of the gear 220 facing away from the impeller 210. Under the action of the elastic member 230, the gear 220 abuts against the impeller 210. When the drive shaft 420 drives the gear 220 to rotate in the first rotation direction F1, the first teeth 211 and the second teeth 221 remain engaged, so that the gear 220 drives the impeller 210 to rotate. When the drive shaft 420 drives the gear 220 to rotate along the second rotation direction F2, the first teeth 211 and the second teeth 221 rotate relative to each other, causing the gear 220 to rotate relative to the impeller 210. Therefore, when the drive shaft 420 drives the gear 220 to rotate along the second rotation direction F2, the impeller 210 does not rotate.

[0047] The above structure achieves unidirectional engagement between the first teeth 211 and the second teeth 221. The drive shaft 420 and the gear 220 slide relative to each other along the axial direction of the drive shaft 420, but do not rotate relative to each other in the circumferential direction of the drive shaft 420, thereby ensuring that the gear 220 and the drive shaft 420 rotate in the same direction. Due to the unidirectional engagement between the first teeth 211 and the second teeth 221, the gear 220 can drive the impeller 210 to rotate only when the drive shaft 420 rotates in the first rotational direction F1. Consequently, when the drive shaft 420 rotates in the second rotational direction F2, only the pump tooth mechanism 300 is driven to operate, while the impeller mechanism 200 is not driven to operate.

[0048] It should be noted that there are multiple first teeth 211 and second teeth 221, and they are respectively arranged around the impeller 210 and the gear 220. By providing an elastic member 230, when the drive mechanism 400 drives the gear 220 to rotate in the second rotational direction F2, the first teeth 211 slide relative to the second teeth 221, and the elastic member 230 is compressed. When the first teeth 211 slide relative to the second teeth 221, the compressed elastic member 230 returns to its original position, allowing the first teeth 211 and the second teeth 221 to continue to engage with each other. This allows the first teeth 211 and the second teeth 221 to rotate relative to each other in the first rotational direction F1 at any time after rotating relative to each other in the second rotational direction F2. This improves the functionality of the compound pump 1000, allowing the drive shaft 420 of the compound pump 1000 to rotate in the first rotational direction F1 or the second rotational direction F2 to drive the impeller mechanism 200 or the pump tooth mechanism 300 to operate, thereby improving operating efficiency.

[0049] In some embodiments, see Figure 4 and Figure 5 , and in conjunction with other figures. The first tooth 211 includes a first tooth surface 2111 and a second tooth surface 2112, and the second tooth 221 includes a third tooth surface 2211 and a fourth tooth surface 2212. When the drive shaft 420 drives the gear 230 to rotate in the first rotation direction F1, the first tooth surface 2111 and the third tooth surface 2211 abut against each other. Furthermore, when the drive shaft 420 drives the gear 230 to rotate in the first rotation direction F1, the second tooth surface 2112 and the fourth tooth surface 2212 separate or connect. "The second tooth surface 2112 and the fourth tooth surface 2212 separate" means that the first tooth 211 and the second tooth 221 are not fully engaged, and a gap may exist between the second tooth surface 2112 and the fourth tooth surface 2212. When the drive shaft 420 drives the gear 230 to rotate in the second rotation direction F2, the second tooth surface 2112 and the fourth tooth surface 2212 slide relative to each other, causing the gear 230 to rotate relative to the impeller 210.

[0050] In some embodiments, along the second rotational direction F2, on a first tooth 211, the second tooth surface 2112 has a first abutting portion 2112a and a second abutting portion 2112b. The first abutting portion 2112a is closer to the first tooth surface 2111 than the second abutting portion 2112b, and the first abutting portion 2112a is closer to the tooth tip of the first tooth 211 than the second abutting portion 2112b. On a second tooth 221, the fourth tooth surface 2212 has a third abutting portion 2212a and a fourth abutting portion 2212b. The third abutting portion 2212a is closer to the third tooth surface 2211 than the fourth abutting portion 2212b, and the third abutting portion 2212a is closer to the tooth tip of the second tooth 221 than the second abutting portion 2112b.

[0051] In some embodiments, the second tooth surface 2112 includes at least one of an inclined surface, a curved surface, or an arc surface.

[0052] In some embodiments, the fourth tooth surface 2212 includes at least one of an inclined surface, a curved surface, or an arcuate surface.

[0053] In some embodiments, the inclination angle of the inclined surface of the second tooth surface 2112 is the same as the inclination angle of the inclined surface of the fourth tooth surface 2212, which is beneficial to improving the fit between the second tooth surface 2112 and the fourth tooth surface 2212, and is beneficial to reducing the mechanical energy lost due to wear of the first tooth 211 and the second tooth 221, thereby helping to improve transmission efficiency and improve work efficiency.

[0054] In some embodiments, the impeller 210 is provided with a first through hole 212 .

[0055] In some embodiments, the gear 220 is provided with a second through-hole 222 and a first limiting structure 223. The first limiting structure 223 is located at the second through-hole 222. The drive shaft 420 of the drive mechanism 400 is provided with a second limiting structure 421. The drive shaft 420 of the drive mechanism 400 passes through the first through-hole 212 and the second through-hole 222, and the first limiting structure 223 and the second limiting structure 421 cooperate. When the drive shaft 420 rotates in the first rotation direction F1, the drive shaft 420 rotates relative to the first through-hole 212. When the drive shaft 420 rotates in the second rotation direction F2, the drive shaft 420 slides and rotates relative to the first through-hole 212.

[0056] In some embodiments, the "first limiting structure 223" and "second limiting structure 421" in this application refer to the first limiting structure 223 being the first limiting structure 223 disposed on the inner wall of the second through hole 222. The second limiting structure 421 is the second limiting structure 421 disposed on the side wall of the drive shaft 420 of the drive mechanism 400. When the drive shaft 420 of the drive mechanism 400 is inserted into the second through hole 222, the first limiting structure 223 and the second limiting structure 421 fit together to allow the drive shaft 420 of the drive mechanism 400 to slide along the second through hole 222, but do not allow the drive shaft 420 of the drive mechanism 400 to rotate relative to the second through hole 222. That is, in the axial direction of the drive shaft 420, the drive shaft 420 and the gear 220 slide relative to each other at the first limiting structure 223 and the second limiting structure 421. However, due to the fit of the two planes, the drive shaft 420 and the gear 220 do not rotate relative to each other in the circumferential direction. Thus, the technical solution of the present application is achieved, that is, the impeller mechanism 200 and the pump tooth mechanism 300 are driven simultaneously by the same drive shaft 420, or the pump tooth mechanism 300 is driven alone.

[0057] It should be noted that "the drive shaft 420 slides and rotates relative to the first through hole 212" means that the drive shaft 420 slides relative to the first through hole 212 in order to provide movable space for the elastic member 230, that is, the elastic member 230 drives the impeller 210 to slide relative to the drive shaft 420, thereby achieving that when the drive shaft 420 rotates along the second rotation direction F2, the drive shaft 420 does not drive the impeller 210 to rotate.

[0058] In some other embodiments, the first limiting structure 223 and the second limiting structure 421 may also be structures such as mutually fitting protrusions and recesses, snap-fitting grooves and snap-fitting parts, sheaves, and composite self-tightening shafts.

[0059] See also Figure 4 , and in conjunction with other drawings. Regarding the aforementioned elastic member 230, the elastic member 230 is sleeved around the drive shaft 420 of the drive mechanism 400. This reduces the risk of radial deformation of the elastic member 230. In other embodiments, multiple elastic members 230 may be provided, disposed around the drive shaft 420, with the axis of the circular ring formed by the multiple elastic members 230 being collinear with the axis of the drive shaft 420.

[0060] In some embodiments, the elastic member 230 includes a structure with elasticity and reset functions, such as a spring, a compression spring, a tension spring, and a hydraulic column.

[0061] See also Figure 4 , and in conjunction with other drawings. As for the gear 220 , the gear 220 includes a gear plate 224 and a gear shaft 225 .

[0062] In some embodiments, the gear shaft 225 is fixed to one surface of the toothed disc 224, the second through hole 222 passes through the toothed disc 224 and the gear shaft 225, the second teeth 221 are provided on the other surface of the toothed disc 224, and the elastic member 230 is sleeved on the gear shaft 225, with the other end of the elastic member 230 abutting against one surface of the toothed disc 224. The toothed disc 224 is provided to provide a mounting base for the elastic member 230 to abut against, and the gear shaft 225 is used to increase the contact area between the drive shaft 420 and the gear 220 in the axial direction to improve the connection strength, thereby facilitating the rotation of the drive gear 220; and to provide a guide for the elastic member 230, thereby reducing radial movement of the elastic member 230 and reducing radial damage to the elastic member 230.

[0063] See also Figure 4, and in conjunction with other drawings. In some embodiments, a limiter 2241 is further provided on one surface of the toothed disc 224. The limiter 2241 is spaced apart from the gear shaft 225, and the other end of the elastic member 230 is accommodated in the space between the limiter 2241 and the gear shaft 225. This further limits the movement of the elastic member 230 in the radial direction, reducing interference between the drive shaft 420 and the elastic member 230 caused by the movement of the elastic member 230 due to vibration generated by the rotation of the drive shaft 420, thereby reducing damage to the elastic member 230 and the drive shaft 420.

[0064] See also Figure 3 , and in combination with other drawings. In some embodiments, the housing 100 is provided with a limiting groove 103, the limiting groove 103 is located in the first pump chamber 101, the drive shaft 420 of the drive mechanism 400 passes through the limiting groove 103, one end of the elastic member 230 is accommodated in the limiting groove 103, and one end of the elastic member 230 abuts the bottom of the limiting groove 103. So that the limiting member 2241 and the limiting groove 103 jointly limit the radial movement of the elastic member 230. Further reduce damage to the elastic member 230 and the drive shaft 420. Specifically, the limiting groove 103 is provided on the side of the first shell 109 facing the third shell 111, and when the third shell 111 forms the first pump chamber 101 alone, the limiting groove 103 is provided on the third shell 111, and the limiting groove 103 is annular and concave in the direction away from the first pump chamber 101. Due to the limiting structure formed by the limiting groove 103 and the limiting member 2241 , when the compound pump 1000 needs to be disassembled for maintenance or installation, the elastic member 230 can be removed without using tools, so as to facilitate maintenance.

[0065] See also Figure 4, and in conjunction with other figures. Regarding the aforementioned drive mechanism 400, the drive mechanism 400 further includes a power assembly 410, a drive shaft 420 mounted to the power assembly 410, and specifically extending through the rotor arrangement of the power assembly 410. The power assembly 410 is electrically connected to a mainboard 600, which can control the power assembly 410 to rotate the drive shaft 420 in a first rotational direction F1 or a second rotational direction F2. In some embodiments, the power assembly 410 includes a servo motor, etc. In some embodiments, the mounting cavity 104 is located between the first pump cavity 101 and the second pump cavity 102, so that the impeller mechanism 200 in the first pump cavity 101 and the pump gear mechanism 300 in the second pump cavity 102 are equally close to the power assembly 410. This improves transmission efficiency and reduces the torque between the drive shaft 420 and the gear 220, preventing the excessive distance between the power assembly 410 and the gear 220 from causing the drive shaft 420 to break or wear the first limiting structure 223 and the second limiting structure 421. In some other embodiments, the installation cavity 104 and the second pump cavity 102 may be arranged on both sides of the first pump cavity 101 , or the installation cavity 104 and the first pump cavity 101 may be arranged on both sides of the second pump cavity 102 .

[0066] See also Figure 4 , and in conjunction with other drawings. As for the drive shaft 420, the drive shaft 420 of the drive mechanism 400 is provided with an annular retaining groove 422. The compound pump 1000 further includes a retaining ring 500, which is engaged with the annular retaining groove 422. The retaining ring 500 abuts against the surface of the impeller 210 facing away from the gear 220. The retaining ring 500 and the retaining groove 103 jointly clamp the impeller 210, gear 220, and elastic member 230 disposed therebetween, thereby preventing the impeller 210, gear 220, and elastic member 230 from falling off the drive shaft 420. Furthermore, the provision of the retaining ring 500 facilitates installation or removal of the impeller mechanism 200.

[0067] See also Figure 3 , and in conjunction with other drawings. The pump gear mechanism 300 includes a pump gear set 310 and a pump gear shaft 320. The pump gear shaft 320 meshes with the pump gear set 310. The pump gear set 310 is composed of at least two gears, and the pump gear shaft 320 only needs to mesh with at least one of them. The gears here are different from the gears 220 in the impeller mechanism 200.

[0068] Please review Figure 2, and in combination with other drawings. The compound pump 1000 provided in the present application also includes a seal 700, and the number of the seals 700 is multiple, and the shape of each seal 700 can be different. The seal 700 is arranged at the connection between each cavity and other cavities outside itself. Specifically, the seal 700 is respectively arranged at the connection between the first shell 109 and the third shell 111, the connection between the first shell 109 and the second shell 110, the connection between the second shell 110 and the fourth shell 112, and the connection between the drive shaft 420 and the first pump chamber 101, and the connection between the drive shaft 420 and the second pump chamber 102. This prevents liquid leakage to prevent damage to the power assembly 410 or other structures.

[0069] Please review Figure 1 , and in conjunction with other figures. It should be noted that the compound pump 1000 also includes a fixing bracket 800, which is mounted on the housing 100 and is used to secure the compound pump 1000 to the toilet body. In some embodiments, the fixing bracket 800 is mounted on at least one of the first housing 109, the second housing 110, the third housing 111, and the fourth housing 112. Specifically, the fixing bracket 800 is mounted on the second housing 110.

[0070] The working process of the present application will be further described in conjunction with the above embodiments. When the aforementioned toilet body needs to be flushed, the power assembly 410 needs to drive the impeller 210 to rotate. The main board 600 sends a signal to the power assembly 410 to enable the power assembly 410 to drive the drive shaft 420 to rotate along the first rotation direction F1. The first limiting structure 223 and the second limiting structure 421 fit together to enable the drive shaft 420 to drive the gear 220 to rotate along the first rotation direction F1. The first tooth 211 and the second tooth 221 remain engaged under the support of the elastic member 230, so that the gear 220 drives the impeller 210 to rotate, thereby realizing the flow of liquid in the first pump chamber 101. When the aforementioned toilet body needs to be cleaned, or a part of the human body needs to be cleaned, the power assembly 410 needs to drive the pump gear group 310 to rotate. The mainboard 600 sends a signal to the power assembly 410, causing the power assembly 410 to drive the drive shaft 420 to rotate in the second rotation direction F2. The drive shaft 420 drives the pump gear shaft 225 to rotate, thereby driving the pump gear assembly 310 to rotate, thereby achieving liquid flow in the second pump chamber 102. At the same time, the first limiting structure 223 and the second limiting structure 421 on the other side of the drive shaft 420 engage, and the inclined surfaces of the first teeth 211 and the second teeth 221 slide relative to each other, thereby continuously compressing and resetting the elastic member 230 so that the first teeth 211 and the second teeth 221 do not engage relative to each other, thereby preventing the gear 220 from driving the impeller 210 to rotate. Through the above structure, the impeller mechanism 200 and the pump gear mechanism 300 can be driven separately by the same drive shaft 420 to work separately.

[0071] In an embodiment of the present application, a compound pump 1000 is provided. The compound pump 1000 includes a housing 100, an impeller mechanism 200, a pump tooth mechanism 300, and a drive mechanism 400. The compound pump 1000 includes a housing 100, an impeller mechanism 200, a pump tooth mechanism 300, and a drive mechanism 400. The housing 100 has a first pump chamber 101 and a second pump chamber 102 that are separated. The impeller mechanism 200 is disposed in the first pump chamber 101. The pump tooth mechanism 300 is disposed in the second pump chamber 102. The drive mechanism 400 includes a power assembly 410 and a drive shaft 420. The power assembly 410 is mounted on the housing 100 and connected to the drive shaft 420. At least a portion of the drive shaft 420 is located in the first pump chamber 101 and the second pump chamber 102. The drive shaft 420 is connected to the impeller mechanism 200 and the pump gear mechanism 300, respectively. The power assembly 410 is used to drive the drive shaft 420 to rotate, thereby driving at least a portion of the impeller mechanism 200 and the pump gear mechanism 300 to rotate. When the drive shaft 420 rotates in a first rotation direction F1, the drive shaft 420 drives the impeller mechanism 200 and the pump gear mechanism 300 to operate. When the drive shaft 420 rotates in a second rotation direction F2, the drive shaft 420 drives the pump gear mechanism 300 to operate. The first rotation direction F1 and the second rotation direction F2 are opposite. Through the above structure, the drive shaft 420 can drive the impeller mechanism 200 located in the first pump chamber 101 to work, thereby flushing the toilet; or, the drive shaft 420 drives the pump tooth mechanism 300 located in the second pump chamber 102 to work, thereby cleaning the human body or the toilet, so that it is only necessary to control the rotation of the drive shaft 420, thereby simplifying the structure of the compound pump 1000, reducing the occupied space of the entire compound pump 1000 and reducing costs.

[0072] Based on the same inventive concept, the present application also provides a smart toilet, which includes the above-mentioned compound pump 1000. The structure and effect of the compound pump 1000 can be found above and will not be described in detail here. Since the smart toilet includes the above-mentioned compound pump 1000, the smart toilet can also improve the current situation in which two sets of control modules are required in the smart toilet to control the water pump and the gear 220 pump respectively, resulting in a complicated structure. In addition, in the smart toilet, two water outlet modes can be achieved by controlling only the drive shaft 420, and the impeller mechanism 200 and the pump gear mechanism 300 arranged along the drive shaft 420 can save space in the smart toilet, thereby improving the space utilization rate of the smart toilet.

[0073] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of this application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to be additional limitations on the content of this application. The purpose of providing these embodiments is to make the understanding of the disclosure of this application more thorough and comprehensive. In addition, the above-mentioned technical features can be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the description of this application; further, it is obvious to those skilled in the art that improvements or changes can be made based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A compound pump, characterized in that: include: The housing has a first pump chamber and a second pump chamber that are separated from each other; an impeller mechanism, disposed in the first pump chamber; a pump gear mechanism, disposed in the second pump chamber; a drive mechanism comprising a power assembly and a drive shaft, wherein the power assembly is mounted on the housing and connected to the drive shaft, wherein at least a portion of the drive shaft is located in the first pump chamber and the second pump chamber, and the drive shaft is connected to the impeller mechanism and the pump gear mechanism, respectively, and the power assembly is used to drive the drive shaft to rotate so as to drive at least a portion of the impeller mechanism and the pump gear mechanism to rotate; When the drive shaft rotates along the first rotation direction, the drive shaft drives the impeller mechanism and the pump gear mechanism to work; When the drive shaft rotates along the second rotation direction, the drive shaft drives the pump gear mechanism to work; Wherein, the first rotation direction and the second rotation direction are opposite.

2. The compound pump according to claim 1, characterized in that: The impeller mechanism comprises: an impeller, the impeller being provided with first teeth; a gear, drivingly connected to the drive shaft, the gear being provided with a second tooth, the first tooth and the second tooth being engaged with each other; an elastic member, wherein the elastic member is sleeved on the drive shaft, one end of the elastic member abuts against the housing, and the other end of the elastic member abuts against the surface of the gear facing away from the impeller, and under the action of the elastic member, the gear abuts against the impeller; When the drive shaft drives the gear to rotate along the first rotation direction, the first tooth and the second tooth remain engaged, so that the gear drives the impeller to rotate; When the driving shaft drives the gear to rotate along the second rotation direction, the first teeth and the second teeth rotate relative to each other, causing the gear to rotate relative to the impeller.

3. The compound pump according to claim 2, characterized in that: The first tooth includes a first tooth surface and a second tooth surface, and the second tooth includes a third tooth surface and a fourth tooth surface; When the drive shaft drives the gear to rotate along the first rotation direction, the first tooth surface and the third tooth surface abut against each other, so that the gear drives the impeller to rotate; When the driving shaft drives the gear to rotate along the second rotation direction, the second tooth surface and the fourth tooth surface slide relative to each other, causing the gear to rotate relative to the impeller.

4. The compound pump according to claim 3, characterized in that: On the first tooth, the second tooth surface has a first abutting portion and a second abutting portion, the first abutting portion is closer to the first tooth surface than the second abutting portion, and the first abutting portion is closer to the tooth top of the first tooth than the second abutting portion; On the second tooth, the fourth tooth surface has a third abutting portion and a fourth abutting portion, the third abutting portion is closer to the third tooth surface than the fourth abutting portion, and the third abutting portion is closer to the tooth top of the second tooth than the second abutting portion.

5. The compound pump according to claim 4, characterized in that: The second tooth surface includes at least one of an inclined surface, a curved surface or an arc surface; And / or, the fourth tooth surface includes at least one of an inclined surface, a curved surface or an arcuate surface.

6. The compound pump according to claim 2, characterized in that: The impeller is provided with a first through hole, the gear is provided with a second through hole and a first limiting structure, the first limiting structure is located at the second through hole, the driving shaft of the driving mechanism is provided with a second limiting structure, the driving shaft of the driving mechanism is passed through the first through hole and the second through hole, and the first limiting structure and the second limiting structure cooperate; When the driving shaft rotates along a first rotation direction, the driving shaft rotates relative to the first through hole; When the driving shaft rotates along the second rotation direction, the driving shaft slides and rotates relative to the first through hole.

7. The compound pump according to claim 6, characterized in that: The gear includes a gear plate and a gear shaft, the gear shaft is fixed to one surface of the gear plate, the second through hole passes through the gear plate and the gear shaft, the second tooth is arranged on the other surface of the gear plate, the elastic member is sleeved on the gear shaft, and the elastic member abuts against the surface of the gear plate.

8. The compound pump according to claim 7, characterized in that: A limiting member is further provided on one surface of the toothed disc. The limiting member and the gear shaft are spaced apart, and a portion of the elastic member is accommodated in the space between the limiting member and the gear shaft.

9. The compound pump according to claim 2, characterized in that: The housing is provided with a limiting groove, the limiting groove is located in the first pump chamber, the driving shaft passes through the limiting groove, one end of the elastic member is accommodated in the limiting groove, and one end of the elastic member abuts against the bottom of the limiting groove; The drive shaft is provided with an annular groove; The compound pump further includes a limiting ring, which is clamped in the annular clamping groove and abuts against the impeller away from the gear surface.

10. A smart toilet, characterized in that: It comprises a controller and the compound pump according to any one of claims 1 to 9, wherein the controller is electrically connected to the power assembly, and the controller is used to control the power assembly to drive the drive shaft to rotate along the first rotation direction or the second rotation direction.

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