CN217029195U - Piston pump, cleaner and intelligent closestool - Google Patents

Abstract

The embodiment of the utility model relates to the technical field of intelligent toilets, and particularly discloses a piston pump, a cleaner and an intelligent toilet, which comprise a pump body, a piston assembly and a driving assembly, wherein the piston assembly comprises a first piston and a first piston cylinder body, the first piston cylinder body is arranged on the pump body, the first piston cylinder body is provided with a first piston cavity with a first opening, a first water inlet and a first water outlet, the first piston is inserted into the first piston cavity from the first opening, the first piston cavity can reciprocate in the first piston cavity to form a first compression cavity with variable volume, the first water inlet and the first water outlet are communicated with the first compression cavity, the driving assembly is connected with the first piston, and the driving assembly is used for driving the first piston to reciprocate so as to suck external liquid into the first piston cavity and extrude the liquid out of the first piston cavity. Through the mode, the embodiment of the utility model can enable the piston pump to carry out pressurization output on the liquid flowing through the piston pump, and ensure the pressure of the liquid.

Description

Piston pump, cleaner and intelligent closestool

Technical Field

The embodiment of the utility model relates to the technical field of intelligent toilets, in particular to a piston pump, a cleaner and an intelligent toilet.

Background

Along with the development of science and technology and the more and more importance of people to the quality of life, intelligent cleaners and polishes have walked into more and more families, for example: the intelligent closestool has the functions of seat ring heat preservation, warm air drying, automatic deodorization, human body part cleaning and the like, wherein the human body part cleaning is one of the most important functional cleaners.

However, in implementing the embodiments of the present invention, the inventors found that: at present, a water pump is lacked in water spraying of a cleaner of an intelligent closestool, the cleaner is connected with a tap water pipeline through a valve body with electromagnetic switches, pressure reduction and air isolation functions, a flow meter, a heater and a water path distribution flow regulating valve are connected at the rear end, a target cleaning part is cleaned by water spraying of a water spraying opening of the cleaner, the cleaner is constrained by the pressure of the tap water pipeline, and when the pressure of the tap water is insufficient, a basic cleaning function can be lost.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model mainly solves the technical problem of providing the piston pump, the cleaner and the intelligent closestool, which can ensure that the pressure of the cleaner is not limited by the pressure of a water pipe and the water pressure of the cleaner is kept.

In order to solve the technical problems, the utility model adopts a technical scheme that: providing a piston pump, the piston pump comprising a pump body, a piston assembly and a driving assembly, the piston assembly comprising a first piston and a first piston cylinder, the first piston cylinder being disposed in the pump body, the first piston cylinder being provided with a first piston cavity with a first opening, a first water inlet and a first water outlet, the first piston being inserted into the first piston cavity from the first opening, and the first piston being capable of reciprocating along an axis perpendicular to the first water inlet to the first water outlet, a wall surface of the first piston cavity and the first piston together constituting a first compression cavity with a variable volume, the first water inlet and the first water outlet remaining in communication with the first compression cavity, the driving assembly being connected to the first piston, the driving assembly being configured to drive the first piston cavity to reciprocate along an axis perpendicular to the first water inlet to the first water outlet, so as to suck the external liquid into the first piston cavity from the first water inlet, and extrude the liquid out of the first piston cavity through the first water outlet, so that the liquid flowing through the piston pump is pressurized and output by the piston pump, and the pressure of the liquid is ensured.

Optionally, the piston assembly further includes a first unidirectional diaphragm, the first unidirectional diaphragm is disposed at the first water inlet, the first unidirectional diaphragm allows the flow direction of the liquid to be the direction from the first surface of the first unidirectional diaphragm to the second surface of the first unidirectional diaphragm, the first surface of the first unidirectional diaphragm is the surface of the first unidirectional diaphragm deviating from the first compression cavity, and the second surface of the first unidirectional diaphragm faces the surface of the first compression cavity.

Optionally, the driving assembly includes a movable rod, a cam, a rotary table and a rotating unit, the movable rod is connected to the first piston, the movable rod is provided with a sliding hole, the rotating unit is disposed in the pump body, the rotating unit is connected to the rotary table, the cam is fixed on a surface of the rotary table far away from the rotating unit, the cam deviates from a circle center of the rotary table, the cam is inserted into the sliding hole, and when the rotating unit drives the rotary table to rotate, the cam drives the movable rod to reciprocate along an axis perpendicular to the first water inlet to the first water outlet, so as to drive the first piston to reciprocate along an axis perpendicular to the first water inlet to the first water outlet.

Optionally, the pump body is further provided with a receiving cavity, a first through hole and a second through hole, the first through hole and the second through hole are all communicated with the receiving cavity, the driving assembly comprises an inner gear ring, a first planetary gear, a second planetary gear, a third planetary gear and a central gear, the inner gear ring is arranged in the receiving cavity, the first planetary gear, the second planetary gear and the third planetary gear are all fixed on the other surface of the turntable, which is away from the cam, the first planetary gear, the second planetary gear and the third planetary gear are all located on the inner gear ring, the first planetary gear, the second planetary gear and the third planetary gear are all engaged with the inner gear ring, the central gear is engaged with the first planetary gear, the second planetary gear and the third planetary gear respectively, and a driving shaft of the rotating unit is fixed with the central gear after passing through the first through hole, the cam extends from the second through hole.

Optionally, the piston assembly further includes a second piston and a second piston cylinder, the second piston cylinder is disposed in the pump body, the second piston cylinder is provided with a second piston cavity with a second opening, a second water inlet and a second water outlet, the second piston is inserted into the second piston cavity from the second opening, the second piston cavity can reciprocate along an axis perpendicular to the second water inlet to the second water outlet, a wall surface of the second piston cavity and the second piston jointly form a second compression cavity with a variable volume, the second water inlet and the second water outlet are communicated with the second compression cavity, and the second piston is connected with the movable rod.

Optionally, the piston assembly further includes a second unidirectional diaphragm, the second unidirectional diaphragm is disposed at the second water inlet, the second unidirectional diaphragm allows the flow direction of the liquid to be the direction from the first surface of the second unidirectional diaphragm to the second surface of the second unidirectional diaphragm, the first surface of the second unidirectional diaphragm is the direction from the second unidirectional diaphragm to the surface of the second compression cavity, and the second surface of the second unidirectional diaphragm is the surface of the second unidirectional diaphragm away from the first compression cavity.

Optionally, the first piston is connected to one end of the movable rod, and the second piston is connected to the other end of the movable rod.

Optionally, the pump body is provided with a pump body intake chamber, a pump body outlet chamber, an inlet tube and an outlet pipe, inlet tube one end is connected the pump body intake chamber, and the other end is connected with external pipeline, outlet pipe one end is connected the pump body outlet chamber, and the other end is connected with external pipeline, the pump body intake chamber respectively with first water inlet with the second water inlet intercommunication, the pump body outlet chamber respectively with first delivery port with the second delivery port intercommunication.

Optionally, the driving assembly includes a control assembly, the control assembly is connected to the rotating unit, and the control assembly is configured to adjust a rotating speed of the rotating unit to adjust frequencies of the first piston and the second piston, so as to achieve different pulse water effects.

In order to solve the technical problem, the utility model adopts another technical scheme that: a washer is provided, comprising the above piston pump.

In order to solve the technical problem, the utility model adopts another technical scheme that: an intelligent closestool is provided, which comprises the cleaner.

In an embodiment of the present invention, the piston pump includes a pump body, a piston assembly and a driving assembly, the piston assembly includes a first piston and a first piston cylinder, the first piston cylinder is disposed in the pump body, the first piston cylinder is provided with a first piston cavity with a first opening, a first water inlet and a first water outlet, the first piston is inserted into the first piston cavity from the first opening, and the first piston can reciprocate along an axis perpendicular to the first water inlet to the first water outlet, a wall surface of the first piston cavity and the first piston together form a first compression cavity with a variable volume, the first water inlet and the first water outlet are kept in communication with the first compression cavity, the driving assembly is connected to the first piston, the driving assembly is configured to drive the first piston cavity to reciprocate along an axis perpendicular to the first water inlet to the first water outlet, the first piston cavity is used for sucking outside liquid from the first water inlet, and then the liquid is extruded out from the first piston cavity through the first water outlet, so that the liquid flowing through the piston pump is pressurized and output by the piston pump, and the pressure of the liquid is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any creative effort.

FIG. 1 is a perspective view of a piston pump provided by an embodiment of the present invention;

FIG. 2 is a schematic exploded view of a piston pump according to an embodiment of the present invention;

FIG. 3 is a schematic exploded view of a pump body in a piston pump provided by an embodiment of the present invention;

FIG. 4 is a perspective view of a pedestal in the pump body in the piston pump provided by an embodiment of the present invention;

FIG. 5 is a burst view of a piston assembly in a piston pump provided by an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a piston pump provided in accordance with an embodiment of the present invention;

fig. 7 is an exploded view of a drive assembly in a piston pump provided by an embodiment of the present invention.

Detailed Description

In order to facilitate an understanding of the utility model, reference will now be made in detail to the present embodiments of the utility model, examples of which are illustrated in the accompanying drawings. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the piston pump 1 includes a pump body 20, a piston assembly 10 and a driving assembly 30, the piston assembly 10 is disposed on the pump body 20, the driving assembly 30 partially protrudes out of the pump body 20 toward one end of the piston assembly 10 and is connected to the piston assembly 10, when the driving assembly 30 rotates, the driving assembly 30 drives the piston assembly 10 to reciprocate, so as to suck external liquid into the piston assembly 10 and extrude the liquid out of the piston assembly 10.

Referring to fig. 3 and 4, the pump body 20 includes a base 202, a water path cover plate 203 and a pump body cover plate 201, one end of the base 202 facing the piston assembly 10 is connected to the pump body cover plate 201, the other end is connected to the water path cover plate 203, the base 202 is provided with an accommodating cavity 2024, a first through hole 2025, a pump body water inlet cavity 2023, a pump body water outlet cavity 2022, a water inlet pipe 2026 and a water outlet pipe 2021, one end of the water inlet pipe 2026 is connected to the pump body water inlet cavity 2023, the other end is connected to an external pipeline, one end of the water outlet pipe 2021 is connected to the pump body water outlet cavity 2022, the other end is connected to the external pipeline, the pump body water inlet cavity 2023 and the pump body water outlet cavity 2022 are respectively communicated with the piston assembly 10, external liquid can enter the piston assembly 10 from the water inlet pipe 2026 through the pump body water inlet cavity 2023, then flows from the piston assembly 10 through the pump body water outlet cavity 2022 to the water outlet pipe 2021, and then flows to the external pipeline from the water outlet pipe 2021. The first through hole 2025 is disposed at an end of the base 202 facing the driving element 30 and is in communication with the receiving cavity 2024. The pump body cover plate 201 is provided with a second through hole 2012, a first piston cylinder accommodating cavity 2013 with a first double-sided opening and a second piston cylinder accommodating cavity 2011 with a second double-sided opening, the second through hole 2012 is communicated with the accommodating cavity 2024, the first piston cylinder accommodating cavity 2013 is arranged at one end of the pump body cover plate 201, and the second cylinder accommodating cavity 2011 is arranged at the other end of the pump body cover plate 201. The waterway cover plate 203 is used for sealing the pump body water inlet cavity 2023 and the pump body water outlet cavity 2022.

Referring to fig. 5 and 6, the piston assembly 10 includes a first piston 103, a first cylinder 102, a second piston 108, a second cylinder 109, a first unidirectional diaphragm 105, a second unidirectional diaphragm 106, a third unidirectional diaphragm 104, a fourth unidirectional diaphragm 107, and a dust-proof cover 101, the first cylinder 102 is provided with a first piston chamber 1021 with a first opening, a first water inlet (not shown), a first water outlet (not shown), and a first compression chamber 1022, one end of the first cylinder 102, which is far from the first inlet and the first water outlet, is inserted into the first piston cylinder receiving chamber 2013 with a first double-sided opening, the other end is connected to the base 202, the first piston 103 is inserted into the first piston chamber 1021 from the first opening, and the first piston 103 can reciprocate along an axis perpendicular to the first water inlet to the first water outlet, a wall surface (not shown) of the first piston chamber 1021 and the first piston 103 jointly form a first compression chamber with variable volume, the first water inlet is communicated with the pump body water inlet cavity 2023 and the first compression cavity 1022, and the first water outlet is communicated with the first compression cavity 1022 and the pump body water outlet cavity 2022. Similarly, the second cylinder 109 is provided with a second piston cavity 1091 with a second opening, a second water inlet (not shown), a second water outlet (not shown) and a second compression cavity 1092, one end of the second cylinder 109, which is away from the second inlet and the second water outlet, is inserted into the second piston cylinder receiving cavity 2011 with a second double-sided opening, the other end is connected to the base 202, the second piston 108 is inserted into the second piston cavity 1091 from the second opening, and the second piston 108 can reciprocate along an axis perpendicular to the second water inlet and the second water outlet, the wall surface (not shown) of the second piston cavity 1091 and the second piston 108 jointly form the second compression cavity 1092 with variable volume, the second water inlet is communicated with the pump body water inlet cavity 2023 and the second compression cavity 1092, the second water outlet is communicated with the second compression cavity and the pump body water outlet cavity 2022, the first cylinder 102 and the second cylinder 109 are arranged oppositely along the first direction, and a gap is formed between the first cylinder 102 and the second cylinder 109, and the first direction is a direction in which the first piston 103 moves to increase the volume of the first compression chamber 1022. The first one-way diaphragm 105 is disposed at the first water inlet, and when the first piston 103 moves in the first piston cavity 1021, the volume of the first compression cavity 1022 is increased, and the first one-way diaphragm 105 guides the liquid in the pump body water inlet cavity 2023 to the first compression cavity 1022 in a one-way manner. The third one-way diaphragm 104 is disposed at the first water outlet, and when the first piston 103 moves in the first piston cavity 1021, the volume of the first compression cavity 1022 is reduced, and the third one-way diaphragm 104 guides the liquid in the first compression cavity 1022 to the pump body water outlet cavity 2022 in a one-way manner. Similarly, the second unidirectional diaphragm 106 is disposed at the second water inlet, when the second piston 108 moves in the second piston cavity 1091, the volume of the second compression cavity 1092 is increased, and the second unidirectional diaphragm 106 guides the liquid in the pump body water inlet cavity 2023 to the second compression cavity 1092 in a unidirectional manner. The fourth unidirectional diaphragm 107 is disposed at the second water outlet, when the second piston 108 moves in the second piston chamber 1091, the volume of the second compression chamber 1092 is reduced, and the fourth unidirectional diaphragm 107 guides the liquid in the second compression chamber 1092 to the pump body water outlet chamber 2022 in a unidirectional manner. The dust cover 101 is provided with a cylinder housing chamber (not shown) having three openings, and the dust cover 101 is inserted into the first cylinder 102, the second cylinder 109, and the pump cover 201 through the cylinder housing chamber, and seals the gap to prevent foreign matter from entering and affecting the reciprocation of the piston assembly 10.

With the above-described drive assembly 30, including the rotating unit 301, the movable lever 307, the cam 306, the rotary plate 305, the inner ring gear 302, the first planetary gear 303, the second planetary gear 304, the third planetary gear 308, the sun gear 309, and the control assembly (not shown), the inner ring gear 302 is fixed to the housing chamber 2024, the first planetary gear 303, the second planetary gear 304, and the third planetary gear 308 are all fixed to the surface of the rotary plate 305 facing the housing chamber 2024, the first planetary gear 303, the second planetary gear 304, and the third planetary gear 308 are all located on the inner ring gear 302, the first planetary gear 303, the second planetary gear 304, and the third planetary gear 308 are all meshed with the inner ring gear 302, and the sun gear 309 is meshed with the first planetary gear 303, the second planetary gear 304, and the third planetary gear 308, respectively. The rotating unit 301 is connected to an end of the base 202 away from the receiving cavity 2024, and a driving shaft (not shown) of the rotating unit 301 passes through the first through hole 2025 and is fixed to the central gear 309, the cam 306 is fixed to a surface of the rotating disc 305 away from the receiving cavity 2024, and the cam 306 is offset from a center of the rotating disc 305. The movable rod 307 has one end connected to the first piston 103 and the other end connected to the second piston 108, the movable rod 307 is provided with a sliding hole 3071, and the cam 306 is inserted into the sliding hole 3071 through the second through hole 2012. When the rotating unit 301 rotates, the central gear 309 is driven to rotate, the first planetary gear 303, the second planetary gear 304, and the third planetary gear 308 are driven to rotate in the inner ring gear 302 and revolve around the inner ring gear 302, the rotating disc 305 is driven to rotate, the cam 306 is driven to rotate, the movable rod 307 is driven to reciprocate, and the first piston 103 and the second piston 108 are driven to reciprocate. The control assembly is connected with the rotating unit 301, and the control assembly is used for adjusting the rotating speed of the rotating unit 301 so as to adjust the frequency of the first piston 103 and the second piston 108, thereby realizing different pulse water effects and different pulse water flow rates.

It is to be understood that although the drive assembly 30 of the present embodiment includes the first planetary gear 303, the second planetary gear 304, and the third planetary gear 308, the drive assembly 30 is not limited to three planetary gears, and may include more than three planetary gears.

In an embodiment of the present invention, the piston pump 1 includes a pump body, a piston assembly 10 and a driving assembly 30, the piston assembly 10 includes a first piston 103 and a first piston cylinder, the first piston cylinder is disposed in the pump body, the first piston cylinder is provided with a first piston cavity 1021 with a first opening, a first water inlet and a first water outlet, the first piston 103 is inserted into the first piston cavity 1021 from the first opening, and the first piston 103 can reciprocate along an axis perpendicular to the first water inlet to the first water outlet, a wall surface of the first piston cavity 1021 and the first piston 103 together form a first compression cavity 1022 with variable volume, the first water inlet and the first water outlet are kept in communication with the first compression cavity 1022, the driving assembly 30 is connected with the first piston 103, the driving assembly 30 is configured to drive the first piston 103 cavity to reciprocate along an axis perpendicular to the first water inlet to the first water outlet, so as to suck the external liquid into the first piston cavity 1021 from the first water inlet, and then extrude the liquid out from the first piston cavity 1021 through the first water outlet, so that the piston pump 1 can pressurize and output the liquid flowing through the piston pump 1, thereby ensuring the pressure of the liquid.

The utility model further provides an embodiment of a cleaner, the cleaner (not shown) includes the piston pump 1, and for the structure and the function of the piston pump 1, reference may be made to the above embodiment, and details are not repeated here.

The utility model further provides an embodiment of the intelligent closestool, the intelligent closestool (not shown) comprises the cleaner, and the structure and the function of the cleaner can be referred to the embodiment, which is not described in detail herein.

It should be noted that the description of the present invention and the accompanying drawings illustrate preferred embodiments of the present invention, but the present invention may be embodied in many different forms and is not limited to the embodiments described in the present specification, which are provided as additional limitations to the present invention and to provide a more thorough understanding of the present disclosure. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the utility model as defined by the appended claims.

Claims (11)

1. A piston pump, comprising:

a pump body;

the piston assembly comprises a first piston and a first piston cylinder, the first piston cylinder is arranged on the pump body, the first piston cylinder is provided with a first piston cavity with a first opening, a first water inlet and a first water outlet, the first piston is inserted into the first piston cavity from the first opening, the first piston can reciprocate along an axis perpendicular to the axis from the first water inlet to the first water outlet, the wall surface of the first piston cavity and the first piston jointly form a first compression cavity with variable volume, and the first water inlet and the first water outlet are communicated with the first compression cavity;

the driving assembly is connected with the first piston and used for driving the first piston to reciprocate along an axis perpendicular to the range from the first water inlet to the first water outlet so as to suck outside liquid into the first piston cavity from the first water inlet and extrude the liquid out of the first piston cavity through the first water outlet.

2. Piston pump according to claim 1,

piston assembly still includes first one-way diaphragm, first one-way diaphragm set up in first water inlet, first one-way diaphragm allows the flow direction of liquid to do first surface of first one-way diaphragm is toward the second surface direction of first one-way diaphragm, first surface of first one-way diaphragm does first one-way diaphragm deviates from the surface of first compression chamber, the second surface of first one-way diaphragm does first one-way diaphragm orientation the surface of first compression chamber.

3. Piston pump according to claim 1,

the driving assembly comprises a movable rod, a cam, a rotary table and a rotating unit, the movable rod is connected with the first piston, the movable rod is provided with a sliding hole, the rotating unit is arranged on the pump body and connected with the rotary table, the cam is fixed on the surface of the rotary table far away from the rotating unit, deviates from the circle center of the rotary table and is inserted in the sliding hole;

when the rotating unit drives the rotating disc to rotate, the cam drives the movable rod to reciprocate along an axis perpendicular to the first water inlet to the first water outlet, so that the first piston is driven to reciprocate along an axis perpendicular to the first water inlet to the first water outlet.

4. Piston pump according to claim 3,

the pump body is also provided with an accommodating cavity, a first through hole and a second through hole, and the first through hole and the second through hole are both communicated with the accommodating cavity;

the driving assembly comprises an inner gear ring, a first planetary gear, a second planetary gear, a third planetary gear and a central gear, the inner gear ring is arranged in the accommodating cavity, the first planetary gear, the second planetary gear and the third planetary gear are all fixed on the other surface of the turntable, which faces away from the cam, the first planetary gear, the second planetary gear and the third planetary gear are all located on the inner gear ring, the first planetary gear, the second planetary gear and the third planetary gear are all meshed with the inner gear ring, the central gear is respectively meshed with the first planetary gear, the second planetary gear and the third planetary gear, a driving shaft of the rotating unit penetrates through the first through hole and then is fixed with the central gear, and the cam extends out of the second through hole.

5. Piston pump according to claim 3,

the piston assembly further comprises a second piston and a second piston cylinder, the second piston cylinder is arranged on the pump body, a second piston cavity with a second opening, a second water inlet and a second water outlet are formed in the second piston cylinder, the second piston is inserted into the second piston cavity from the second opening, the second piston cavity can move in a reciprocating mode along the axis perpendicular to the second water inlet to the second water outlet, the wall surface of the second piston cavity and the second piston jointly form a second compression cavity with the variable volume, the second water inlet and the second water outlet are kept communicated with the second compression cavity, and the second piston is connected with the movable rod.

6. Piston pump according to claim 5,

the piston assembly further comprises a second unidirectional diaphragm, the second unidirectional diaphragm is arranged at the second water inlet, the second unidirectional diaphragm allows the flow direction of liquid to be the direction from the first surface of the second unidirectional diaphragm to the second surface of the second unidirectional diaphragm, the first surface of the second unidirectional diaphragm is the direction of the second unidirectional diaphragm towards the surface of the second compression cavity, and the second surface of the second unidirectional diaphragm is the direction of the second unidirectional diaphragm away from the surface of the first compression cavity.

7. Piston pump according to claim 5,

the first piston is connected with one end of the movable rod, and the second piston is connected with the other end of the movable rod.

8. Piston pump according to claim 6,

the pump body is provided with a pump body water inlet cavity, a pump body water outlet cavity, a water inlet pipe and a water outlet pipe, one end of the water inlet pipe is connected with the pump body water inlet cavity, the other end of the water inlet pipe is connected with an external pipeline, one end of the water outlet pipe is connected with the pump body water outlet cavity, the other end of the water outlet pipe is connected with the external pipeline, the pump body water inlet cavity is respectively communicated with the first water inlet and the second water inlet, and the pump body water outlet cavity is respectively communicated with the first water outlet and the second water outlet.

9. Piston pump according to claim 3,

the drive assembly comprises a control assembly, the control assembly is connected with the rotating unit, and the control assembly is used for adjusting the rotating speed of the rotating unit so as to adjust the frequency of the first piston and the second piston, and therefore different pulse water effects are achieved.

10. A washer comprising a piston pump according to any one of claims 1 to 9.

11. An intelligent toilet comprising the washer of claim 10.

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