WO2019114188A1

WO2019114188A1 - Toilet flushing device and intelligent toilet

Info

Publication number: WO2019114188A1
Application number: PCT/CN2018/086585
Authority: WO
Inventors: 孙利云; 吕德夯
Original assignee: 宁波米迪电器有限公司
Priority date: 2017-12-12
Filing date: 2018-05-11
Publication date: 2019-06-20
Also published as: CN107869171A

Abstract

A toilet flushing device and an intelligent toilet. The toilet flushing device comprises a casing (1), a driving device (2), and a telescopic rod (3). The driving device (2) is provided on the casing (1) and transmittingly connected to the telescopic rod (3), and is configured to drive the telescopic rod (3) to press a flush button (61). The toilet flushing device can drive the telescopic rod (3) to press the flush button (61) by means of the driving device (2), which replaces manually pressing the flush button (61), automatic flushing is achieved, and cross infection of bacteria is avoided. Also provided is an intelligent toilet provided with the toilet flushing device.

Description

Toilet flushing device and smart toilet

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201711323626.6, entitled "Toilet Flushing Device and Smart Toilet", filed on Dec. 12, 2017, the entire contents of which is incorporated herein by reference.

Technical field

The present application relates to the field of sanitary building materials, and in particular to a toilet flushing device and a smart toilet.

Background technique

At present, the traditional toilet flushing on the market is manually flushed by people. Most people just press the flush button to flush the water. After repeated, the buttons on the toilet will be dirty and unsanitary, and the traditional toilet seat has very small microorganisms that we can't see with the naked eye: A virus, bacterium, fungus, or parasite that causes an infectious disease. With the development of society, people began to use smart toilets, which brought great convenience to people. After the people, the smart toilet can automatically recognize and automatically flush, eliminating the need for people to manually flush. The intelligent toilet that can automatically flush water is a smart toilet integrated machine, which is more expensive and not suitable for most economic users. Therefore, the intelligent toilet cover came into being. It is only necessary to replace the traditional toilet seat cover with the smart toilet cover to realize the common functions of the smart toilet integrated machine, such as: hip cleaning, seat heating, female cleaning, warm air drying, Automatic deodorization, position adjustment, water pressure adjustment, seat temperature, water temperature and air temperature adjustment.

However, after the smart toilet cover is installed on the traditional toilet, because the existing smart toilet cover cannot automatically flush the toilet, it is still necessary to touch the flush button on the water tank when flushing, which is not only prone to bacterial cross infection, but also when the user operates. Pressing pressure is required, and the operation is inconvenient.

Therefore, it is important to develop an automatic flushing device for use with a smart toilet lid.

Summary of the invention

The purpose of the application is to provide a toilet flushing device and a smart toilet, which are installed on the water tank of a traditional toilet, can realize automatic flushing and avoid bacterial cross infection.

To achieve the above object, the present application provides the following technical solutions:

In a first aspect, the present application provides a toilet flushing device installed in a water tank, including a housing, and further comprising a driving device and a telescopic rod;

The driving device is disposed on the housing and is drivingly connected to the telescopic rod and configured to drive the telescopic rod to press a flush button.

Further, the driving device comprises a motor and a transmission mechanism; the motor is disposed on the housing; the transmission mechanism is drivingly connected to the motor and is drivingly connected to the telescopic rod.

Further, the transmission mechanism includes an active member and a driven member that is drivingly coupled to the active member;

The active member is drivingly connected to an output shaft of the motor;

The follower is drivingly coupled to the telescopic rod and configured to drive the telescopic rod to reciprocate toward or away from the flush button.

Further, the driving member includes a screw, and the driven member includes a slider that is screwed with the screw; the extending direction of the screw is parallel to an extending direction of the telescopic rod;

Or the driving member includes a driving tooth, and the driven member includes a rack that meshes with the driving tooth; the extending direction of the rack is parallel to an extending direction of the telescopic rod;

Alternatively, the active member includes a worm gear, and the driven member includes a worm that meshes with the worm wheel; the worm extends in a direction parallel to an extending direction of the telescopic rod.

Further, the toilet flushing device further includes a first guiding member connected to the housing, the first guiding member extending in a direction parallel to the extending direction of the telescopic rod, and the first guiding member and the first guiding member The follower is slidably coupled to guide the direction of movement of the follower.

Further, the driving device further includes a limit switch, and the limit switch is connected to the motor signal and configured to limit a highest position of the telescopic rod.

Further, the motor is a stepper motor.

Further, the driving device further includes a pressing rod and a resetting member; the pressing rod is connected to the telescopic rod, and a longitudinal direction of the pressing rod is parallel to a longitudinal direction of the telescopic rod; The plunger is coupled and the other end is coupled to the housing and configured to limit a lowermost position of the plunger and drive the plunger to reset.

Further, the toilet flushing device further includes a second guiding member; the second guiding member extends in a direction parallel to the extending direction of the pressing rod, and the second guiding member is slidably connected with the pressing rod and configured to guide The direction of movement of the plunger.

In a second aspect, the present application further provides a smart toilet, comprising a water tank and a smart toilet cover, further comprising the toilet flushing device according to any one of the first aspects, wherein the water tank is provided with a flush button;

The smart toilet cover is in signal connection with a drive in the toilet flushing device.

The toilet flushing device and the smart toilet provided by the present application have the following beneficial effects:

A first aspect of the present application provides a toilet flushing device comprising a housing, further comprising a driving device and a telescopic rod; the driving device is disposed on the housing and is drivingly connected to the telescopic rod and configured to drive the telescopic rod to press the flush button.

Compared with the prior art, the toilet flushing device provided by the first aspect of the present application can drive the telescopic rod to press the flush button by the driving device, instead of manually pressing the flush button, the automatic flushing can be realized, and the bacteria cross can be avoided. infection.

The smart toilet provided by the second aspect of the present application is provided with the toilet flushing device provided by the first aspect of the present application, and the intelligent toilet cover is connected with the driving device of the toilet flushing device, which not only realizes the function of the intelligent toilet integrated machine, but also reduces the function. Economic costs are more suitable for economic users.

DRAWINGS

In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the specific embodiments or the description of the prior art will be briefly described below, and obviously, the attached in the following description The drawings are some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a schematic structural view of a toilet flushing device of a flush button in an upper portion of a water tank according to an embodiment of the present application;

2 is a schematic structural view of a toilet flushing device and a water tank of a flush button in an upper portion of a water tank according to an embodiment of the present application;

3 is a schematic structural view of a toilet flushing device of a flush button on a water tank side according to an embodiment of the present application;

4 is a schematic structural view of a driving device for using a screw slider in a toilet flushing device in an upper portion of a water tank according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a driving device for driving a toothed rack in a toilet flushing device in an upper portion of a water tank according to an embodiment of the present application; FIG.

6 is a perspective view of a driving device using a driving tooth rack in a toilet flushing device of a water tank side according to an embodiment of the present application;

7 is a front view of a driving device using a driving tooth rack in a toilet flushing device of a water tank side according to an embodiment of the present application;

8 is a schematic structural view of a driving device of a flushing button provided in a water flushing device of an upper part of a water tank according to an embodiment of the present application;

9 is a schematic structural view of a driving device of a flushing button provided in a water flushing device of an upper part of a water tank according to an embodiment of the present application;

FIG. 10 is a schematic diagram of control of a smart toilet provided by an embodiment of the present application.

Icons: 1 - housing; 2 - drive device; 3 - telescopic rod; 4 - first guide; 5 - second guide; 6 - water tank; 7 - smart toilet cover; 21 - motor; 22 - transmission mechanism; 23-limit switch; 24-pressure lever; 25-reset member; 26-manual button; 61-flush button; 71-sensor; 72-controller; 221-screw; 222-slider; 223-drive tooth; 224-rack; 225-first gear; 226-second gear; 227-threaded post; 2250-third gear; 2260-fourth gear; 2261-fifth gear; 2262-sixth gear.

Detailed ways

The technical solutions of the present application are clearly and completely described in the following with reference to the accompanying drawings. It is obvious that the described embodiments are a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside" or "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description and the simplified description, and does not indicate or imply that the device or component referred to has a specific orientation, in a specific orientation. Construction and operation are therefore not to be construed as limiting the application. Moreover, the terms "first", "second" or "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that the terms "installation", "connected" or "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meanings of the above terms in the present application can be understood in the specific circumstances for those skilled in the art.

The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are intended to be illustrative and not restrictive.

Referring to FIG. 1 to FIG. 10, the toilet flushing device and the smart toilet provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The embodiment of the first aspect of the present application provides a toilet flushing device, installed in the water tank 6, including the housing 1, further comprising a driving device 2 and a telescopic rod 3;

The drive device 2 is disposed on the housing 1 and is drivingly coupled to the telescopic rod 3 and configured to drive the telescopic rod 3 to press the flush button 61.

Compared with the prior art, the toilet flushing device provided by the embodiment of the first aspect of the present application can drive the telescopic rod 3 to press the flush button 61 by the driving device 2, instead of manually pressing the flush button 61 manually, the automatic flushing can be realized. Flushing, avoiding bacterial cross-infection, and the user does not need to apply pressure when operating, and the operation is convenient.

The driving device 2 can realize the movement of the telescopic rod 3 by various suitable structures, for example, the following methods:

Method 1 The driving device 2 comprises a linear motor which is arranged on the housing 1 and is drivingly connected to the telescopic rod 3 and configured to drive the telescopic rod 3 to reciprocate toward or away from the flush button 61. When the telescopic rod 3 is moved downward to the lowest position, the telescopic rod 3 is pressed away from the linear motor at one end to press the flush button 61 on the water tank 6, so that the toilet automatically flushes. After the telescopic rod 3 presses the flush button 61, the linear motor changes the steering, and the telescopic rod 3 moves upward away from the flush button 61.

The second driving device 2 includes a hydraulic cylinder or a cylinder. The hydraulic cylinder or the cylinder is disposed on the casing 1 , and the piston rod is drivingly connected with the telescopic rod 3 , and is configured to drive the telescopic rod 3 to reciprocate toward or away from the flush button 61 . When the telescopic rod 3 is moved downward to the lowest position, the telescopic rod 3 presses the flush button 61 on the water tank 6 away from the end of the piston rod, so that the toilet automatically flushes. When the telescopic rod 3 presses the flush button 61, the piston rod is retracted to the cylinder, and the telescopic rod 3 moves upward away from the flush button 61.

The third driving device 2 includes a motor 21 and a transmission mechanism 22; the motor 21 is disposed on the housing 1; the transmission mechanism 22 is drivingly connected to the motor 21 and is drivingly connected to the telescopic rod 3.

It should be noted that the motor 21 has an opposite first running direction and a second running direction; in the first running direction, the motor 21 drives the telescopic rod 3 to move toward the flush button 61 through the transmission mechanism 22; In the direction, the motor 21 drives the telescopic rod 3 to move away from the flush button 61 by the above-described transmission mechanism 22. The motor 21 described above may be a stepping motor 21 that can be precisely controlled. The transmission mechanism 22 will be described in detail below:

The transmission mechanism 22 includes an active member and a driven member that is drivingly coupled to the active member; the active member is drivingly coupled to the output shaft of the motor 21; the driven member is drivingly coupled to the telescopic rod 3 and configured to drive the telescopic rod 3 toward or away from the flush button 61 reciprocating motion. In the alternative embodiment of the present invention, the telescopic rod 3 can be connected with the follower by bolting, plugging and snapping, and the length of the extension rod 3 extending from the follower can be adjusted; for example, the telescopic rod 3 is inserted from Inside the moving member, the follower is provided with a height adjusting hole, and the adjusting screw passes through the height adjusting hole to fix the telescopic rod 3 and the driven member. The forms of the active and follower are as follows:

Form 1, as shown in FIG. 4, the driving member includes a screw 221, and the driven member includes a slider 222 threadedly engaged with the screw 221; the extending direction of the screw 221 is parallel to the extending direction of the telescopic rod 3; the output of the screw 221 and the motor 21 The shaft drive is connected, the surface of the screw 221 is provided with an external thread, and the slider 222 is provided with a threaded hole coupled to the external thread. The motor 21 drives the screw 221 to rotate, and the screw 221 is directly coupled to the slider 222. Since the slider 222 is drivingly coupled to the telescopic rod 3, the telescopic rod 3 is driven to reciprocate toward or away from the flush button 61.

Form 2, as shown in FIG. 5, the driving member includes driving teeth 223, and the driven member includes a rack 224 that meshes with the driving teeth 223; the extending direction of the rack 224 is parallel to the extending direction of the telescopic rod 3; the motor 21 drives the driving teeth. When the 223 is rotated, the driving teeth 223 are directly coupled with the rack 224. Since the rack 224 is drivingly coupled with the telescopic rod 3, the telescopic rod 3 is driven to reciprocate toward or away from the flush button 61. As shown in FIG. 4, in the present embodiment, the flush button 61 is located at the upper portion of the water tank 6, and the longitudinal direction of the rack 224 is parallel to the longitudinal direction of the telescopic rod 3. The motor 21 drives the driving teeth 223 and the rack 224 drives the telescopic rod 3. Moving up and down to press the flush button 61; as shown in FIG. 6 or FIG. 7, in the present embodiment, the flush button 61 is located on the side of the water tank 6, and the rack 224 and the telescopic rod 3 may both be curved, and the rack 224 The extending direction is parallel to the extending direction of the telescopic rod 3, and the motor 21 drives the driving teeth 223, and the rack 224 drives the telescopic rod 3 to reciprocate toward or away from the flush button 61 to press the flush button 61.

Form 3: The active member includes a worm wheel, and the driven member includes a worm meshing with the worm wheel; the extending direction of the worm is parallel to the extending direction of the telescopic rod 3. The motor 21 drives the worm wheel to rotate, and the worm wheel is directly coupled with the worm. Since the worm is drivingly connected with the telescopic rod 3, the telescopic rod 3 is driven to reciprocate toward or away from the flush button 61.

Form 4, as shown in FIG. 8, the active member includes a first gear 225, and the driven member includes a second gear 226 and a threaded post 227 having an external thread on the surface, and the first gear 225 is coupled to the output shaft of the motor 21, The second gear 226 is meshed with the first gear 225, the second gear 226 is sleeved on the threaded post 227, and the inner ring is provided with an internal thread coupled to the external thread. The extending direction of the threaded post 227 is parallel to the extending direction of the telescopic rod 3. The motor 21 drives the first gear 225 to rotate, the second gear 226 meshes with the first gear 225, and the threaded post 227 is coupled with the second gear 226. Since the threaded post 227 is drivingly coupled with the telescopic rod 3, the telescopic rod 3 is driven toward or away from the flushing water. The button 61 reciprocates. Wherein: the output shaft of the motor 21 extends in a direction parallel to the extending direction of the threaded post 227; the first gear 225 and the second gear 226 may both be cylindrical gears.

Form 5, as shown in FIG. 9, the active member includes a third gear 2250, and the driven member includes a fourth gear 2260, a fifth gear 2261, a sixth gear 2262, and a threaded column 227, and the output shaft of the third gear 2250 and the motor 21 The transmission is connected, the fourth gear 2260 is meshed with the third gear 2250, the fifth gear 2261 and the fourth gear 2260 are coaxially connected, the sixth gear 2262 is meshed with the fifth gear 2261, and the surface of the threaded column 227 is provided with an external thread, and the sixth gear The 2262 sleeve is disposed on the threaded post 227 and the inner ring is provided with an internal thread coupled to the external thread. The extending direction of the threaded post 227 is parallel to the extending direction of the telescopic rod 3. The motor 21 drives the third gear 2250 to rotate, the fourth gear 2260 meshes with the third gear 2250, the fourth gear 2260 drives the fifth gear 2261 to rotate, the sixth gear 2262 engages with the fifth gear 2261, and the threaded post 227 and the sixth gear 2262 Coupling, since the threaded post 227 is drivingly coupled to the telescopic rod 3, the telescopic rod 3 is caused to reciprocate toward or away from the flush button 61. Wherein: the output shaft of the motor 21 extends in a direction perpendicular to the extending direction of the threaded column 227; the third gear 2250 and the fourth gear 2260 may both be bevel gears, and the fifth gear 2261 and the sixth gear 2262 may both be cylindrical gears .

Form 6, the transmission mechanism 22 can also be other mechanisms such as a crank slider 222 mechanism and a cam mechanism that can move the telescopic rod 3 up and down to press the flush button 61.

In an alternative embodiment of the present invention, the toilet flushing device further includes a first guiding member 4 connected to the housing 1. The extending direction of the first guiding member 4 is parallel to the extending direction of the telescopic rod 3, and A guide member 4 is slidably coupled to the follower member and configured to guide the direction of movement of the follower member. The follower reciprocates along the extending direction of the first guiding member 4 to drive the telescopic rod 3 to reciprocate in its extending direction to reciprocate the telescopic rod 3 toward or away from the flush button 61. For example, when the flush button 61 is located at the upper portion of the water tank 6, the telescopic rod 3 moves up and down. At this time, the first guiding member 4 can be, but is not limited to, a guiding rod, and the longitudinal direction of the guiding rod is parallel to the longitudinal direction of the telescopic rod 3; the flush button 61 is located on the side of the water tank 6, that is, the wrench type flush switch, taking the transmission mechanism 22 of the tooth 223 and the rack 224 as an example. As shown in FIG. 5, the rack 224 and the telescopic rod 3 are both curved, first The guide member 4 can be, but is not limited to, a guide groove provided inside the casing 1, the guide groove being curved, and the rack 224 being slidable along the guide groove.

In an alternative embodiment of the present embodiment, the driving device 2 further includes a limit switch 23, and the limit switch 23 is signally connected to the motor 21 and configured to limit the highest position of the telescopic rod 3. In this embodiment, the motor 21 can be, but is not limited to, a stepping motor. The lowest position of the telescopic rod 3, that is, the position where the telescopic rod 3 is just when the telescopic rod 3 is pressed, can be realized by setting the number of steps of the stepping motor. . The highest position of the telescopic rod 3, that is, the position at which the telescopic rod 3 is at the time when the motor 21 is stopped, can be controlled by the limit switch 23; when the telescopic rod 3 is raised to the highest position, the highest point of the side of the telescopic rod 3 facing away from the flush button 61 is touched. The limit switch 23, the limit switch 23 gives the controller 72 a signal, the controller 72 generates a control command based on the signal and sends the control command to the motor 21, and the motor 21 receives the control command to stop the operation. The limit switch 23 can be, but is not limited to, a reed switch or an infrared switch, etc., in consideration of environmental factors such as humidity and corrosiveness in the bathroom.

The driving device 2 for realizing automatic flushing provided in the above embodiment is provided. In order to avoid the normal operation of the driving device 2 for realizing automatic flushing, such as power failure, the present embodiment further provides a manual driving device 2 to ensure normal operation. use.

In an alternative embodiment of the present embodiment, the driving device 2 further includes a manual button 26, a pressing rod 24 and a resetting member 25; the manual button 26, the pressing rod 24 and the telescopic rod 3 are sequentially connected, and the length of the pressing rod 24 The direction is parallel to the longitudinal direction of the telescopic rod 3; the manual button 26 detects the periphery of the end of the casing 1 to form a closed annular flange, and the casing 1 is provided with a finite slot. When the manual button 26 is pressed, the annular flange is The lower surface is in contact with the upper surface of the limiting groove of the housing 1. One end of the reset member 25 is connected to the pressing rod 24, and the other end is connected to the housing 1. When the manual button 26 is released, the reset member 25 drives the pressing rod 24 to be reset. The reset member 25 can be, but is not limited to, an elastic member, and can be a spring.

In an alternative embodiment of the present invention, the toilet flushing device further includes a second guiding member 5; the extending direction of the second guiding member 5 is parallel to the extending direction of the pressing rod 24, and the second guiding member 5 and the pressing rod The 24 sliding connection is configured to guide the direction of movement of the pressure bar 24. The second guiding member 5 can be, but is not limited to, a sliding rail disposed on the casing 1, and the pressing rod 24 slides up and down along the sliding rail; specifically, the sliding rail can be a guiding rod, and the length direction of the guiding rod and the length direction of the pressing rod 24 parallel.

The embodiment of the second aspect of the present application provides a smart toilet, comprising a water tank 6 and a smart toilet cover 7, further comprising a toilet flushing device according to any one of the embodiments of the first aspect, wherein the water tank 6 is provided with a flush button 61;

The smart toilet cover 7 is in signal connection with the drive unit 2 in the toilet flushing device.

It should be noted that the smart toilet cover 7 is provided with a sensor 71 and a controller 72, as shown in FIG.

The sensor 71 is in signal connection with the controller 72, configured to detect whether the toilet is in use, and when used, the sensor 71 transmits information used by the person to the controller 72, and the controller 72 generates a control command after receiving the information used by the person, and The control command is sent to the driving device 2, for example, the motor 21. After receiving the control command, the driving device 2 drives the telescopic rod 3 to move toward the flush button 61 according to the control command and presses the flush button 61 to complete the automatic flushing process. After detecting the reset of the telescopic rod 3, the limit switch 23 sends the reset information to the controller 72. The controller 72 receives the information of the reset of the telescopic rod 3, generates a control command, and sends the control command to the driving device 2, such as the motor 21. After receiving the control command, the motor 21 stops the operation according to the control command.

Sensor 71 can be, but is not limited to, a pressure sensor or an infrared sensor. Controller 72 can be, but is not limited to, a microcontroller.

The smart toilet provided by the embodiment of the second aspect of the present application is provided with the toilet flushing device provided by the embodiment of the first aspect of the present application, thereby having all the benefits of the toilet flushing device provided by the embodiment of the first aspect of the present application. effect.

The toilet flushing device and the smart toilet of the present application have been described above. However, the present invention is not limited to the specific embodiments described above, and various modifications and changes can be made without departing from the scope of the claims. The present application includes various modifications and changes within the scope of the claims.

Finally, it should be noted that the above embodiments are only used to explain the technical solutions of the present application, and are not limited thereto; although the invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present application. range.

Claims

A toilet flushing device installed in a water tank (6), comprising a casing (1), characterized in that it further comprises a driving device (2) and a telescopic rod (3);

The driving device (2) is disposed on the casing (1) and is drivingly connected to the telescopic rod (3), and is configured to drive the telescopic rod (3) to press a flush button (61).
A toilet flushing device according to claim 1, wherein said driving device (2) comprises a motor (21) and a transmission mechanism (22); said motor (21) being disposed in said housing (1) The transmission mechanism (22) is drivingly connected to the motor (21) and is drivingly connected to the telescopic rod (3).
The toilet flushing device according to claim 2, wherein the transmission mechanism (22) comprises an active member and a driven member that is drivingly coupled to the active member;

The active member is drivingly connected to an output shaft of the motor (21);

The follower is drivingly coupled to the telescopic rod (3) and configured to drive the telescopic rod (3) to reciprocate toward or away from the flush button (61).
A toilet flushing device according to claim 3, wherein said active member comprises a screw (221), said follower comprising a slider (222) threadedly engaged with said screw (221); The extending direction of the screw (221) is parallel to the extending direction of the telescopic rod (3);

Alternatively, the active member includes a driving tooth (223), the driven member includes a rack (224) that meshes with the driving tooth (223); an extending direction of the rack (224) and the telescopic rod (3) The direction of extension is parallel;

Alternatively, the active member includes a worm gear, and the driven member includes a worm that meshes with the worm wheel; the worm extends in a direction parallel to an extending direction of the telescopic rod (3).
The toilet flushing device according to claim 3, further comprising a first guiding member (4) connected to the housing (1), the extending direction of the first guiding member (4) The extending direction of the telescopic rod (3) is parallel, and the first guiding member (4) is slidably coupled to the follower and configured to guide the moving direction of the follower.
The toilet flushing device according to claim 2, wherein the driving device (2) further comprises a limit switch (23), and the limit switch (23) is connected to the motor (21), It is configured to limit the highest position of the telescopic rod (3).
The toilet flushing device according to claim 2, characterized in that the motor (21) is a stepper motor.
The toilet flushing device according to claim 1 or 2, characterized in that the driving device (2) further comprises a pressing rod (24) and a resetting member (25); the pressing rod (24) and the expansion and contraction The rod (3) is connected, and the longitudinal direction of the pressing rod (24) is parallel to the longitudinal direction of the telescopic rod (3); one end of the resetting member (25) is connected to the pressing rod (24), and the other end is connected Connected to the housing (1), configured to limit the lowest position of the plunger (24) and drive the plunger (24) to reset.
A toilet flushing device according to claim 8, further comprising a second guiding member (5); said second guiding member (5) extending in a direction parallel to the extending direction of said pressing rod (24) The second guiding member (5) is slidably coupled to the pressing rod (24) and configured to guide the moving direction of the pressing rod (24).
A smart toilet, comprising a water tank (6) and a smart toilet cover (7), characterized by further comprising the toilet flushing device according to any one of claims 1 to 9, wherein the water tank (6) is provided with Flush button (61);

The smart toilet cover (7) is in signal connection with a drive device (2) in the toilet flushing device.