Automatic flushing device of closestool

Abstract

The utility model provides an automatic flushing device for a closestool, which comprises a box body and a base, and the base is arranged at the bottom of the box body and is used for being connected with a closestool water tank; the base is provided with a bottom surface, and a base concave part is arranged on the bottom surface; the controller is arranged in the box body; the motor is arranged in the box body and is electrically connected with the controller; the pressing rod is arranged outside the box body and is opposite to the closestool flushing key, and the pressing rod is driven by the motor to press the closestool flushing key; the movable plate is at least partially arranged in the concave part of the base, the movable plate is in sliding connection with the concave part of the base, so that the movable plate and the base are detachable, the movable plate can slide in the concave part of the base, and when the movable plate slides out to be separated from the base, a wiring port in the base 2 is exposed in the external environment. A user can directly connect a cable into the wiring port, and when wiring is completed, the user only needs to slide the moving plate into the concave part of the base, so that the installation is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to a toilet flushing technical field especially is related to a toilet automatic flushing device. BACKGROUND

[0002] With the improvement of the requirement of people for the convenience of toilet flushing, the application of the non-contact toilet flushing device is more and more extensive.

[0003] The toilet flushing device comprises a fixed box installed on a toilet water tank, a motor and a gear are arranged in the fixed box, the gear is connected with a rack, the rack is connected with a screw rod, the screw rod is arranged above a toilet flushing button, when a user issues an instruction to the toilet flushing device, a controller of the toilet flushing device sends a signal to the motor, the motor rotates to drive the gear to rotate, the gear drives the rack to rotate, so that the screw rod presses the toilet flushing button, and the toilet flushing process is realized.

[0004] In the prior art, the base of the toilet flushing device is installed on the toilet water tank, and a wiring port is arranged at the bottom of the base, when wiring is needed, the user needs to disassemble the whole base or remove the fixed box to connect the wiring port and the cable, the disassembly process is relatively cumbersome, and the operation of the user is inconvenient. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a toilet automatic flushing device to solve the technical problem that the wiring port and the cable can be connected only by disassembling the whole base or removing the fixed box, and the wiring is inconvenient.

[0006] The utility model provides a toilet automatic flushing device, which comprises a box body, a cavity is formed in the box body, a base is arranged at the bottom of the box body and used for connecting a toilet water tank, the base has a bottom surface, a base recess is arranged on the bottom surface, a controller is arranged in the box body, a motor is arranged in the box body and electrically connected with the controller, a pressing rod is arranged outside the box body and arranged opposite to a toilet flushing button, the pressing rod is driven by the motor to press the toilet flushing button, and a moving plate is at least partially arranged in the base recess and slidably connected with the base recess so that the moving plate and the base can be disassembled.

[0007] In some embodiments of the application, the sliding direction of the moving plate is defined as a second direction, the base recess has at least one connecting side wall extending along the second direction, a protruding block protruding towards the center of the bottom surface is arranged on the connecting side wall, the moving plate has at least one first protruding part extending along the second direction, and the first protruding part is connected to one side of the protruding block away from the bottom surface.

[0008] In some embodiments of this application, nano-adhesive is adhered between the base and the toilet tank to fix the base and the toilet tank in place.

[0009] In some embodiments of this application, the box body is provided with a first opening, the first opening is perpendicular to the bottom surface, and the movable plate includes a movable plate extension that is perpendicular to the bottom surface. The shape of the movable plate extension matches the shape of the first opening so that the movable plate extension and the first opening are connected.

[0010] In some embodiments of this application, a second opening is also provided on the connecting sidewall, the second opening being located between two protruding blocks, so as to push the movable plate in the recess of the base through the second opening.

[0011] In some embodiments of this application, the base is provided with a third opening opposite to the protrusion, the third opening being located on the side of the protrusion away from the bottom surface.

[0012] In some embodiments of this application, the length of the first protrusion extending along the second direction is less than the length of the movable plate extending along the second direction, so that when the movable plate is installed on the base, the portion of the movable plate without the first protrusion first enters the recess of the base, and then the portion of the movable plate with the first protrusion enters the recess of the base.

[0013] In some embodiments of this application, the device further includes: a gear connected to the output shaft of the motor; a rack meshing with the gear, the rack including a connecting rod at least partially located outside the housing; a pressing rod connected to one end of the connecting rod so that the pressing rod moves when the motor moves the rack; and a guide rail slidably connected to the rack so that the rack moves along the guide rail.

[0014] In some embodiments of this application, the automatic toilet flushing device includes a radar, which is electrically connected to the controller. The radar is a 60GHz millimeter-wave radar module, a 24G millimeter-wave radar module, or a UWB ultra-wideband radar module.

[0015] In some embodiments of this application, the pressing rod is a screw, and the automatic toilet flushing device further includes a fixing sleeve, which is connected to the screw.

[0016] The automatic toilet flushing device of this application has at least the following positive effects:

[0017] The automatic toilet flushing device includes a housing and a base. The base is located at the bottom of the housing and is used to connect the toilet tank. The base has a bottom surface with a recessed portion. A controller is located inside the housing. A motor is located inside the housing and is electrically connected to the controller. A push-button is located outside the housing and is positioned opposite the toilet flush button. The push-button is driven by the motor to press the toilet flush button. A movable plate is at least partially located within the recessed portion of the base. The movable plate is slidably connected to the recessed portion of the base, allowing the movable plate and the base to be detachable. The movable plate can slide within the recessed portion of the base. When the movable plate slides out and separates from the base, the wiring port on the base 2 is exposed to the external environment, allowing the user to directly connect the cable to the wiring port. When the wiring is complete, the user simply slides the movable plate back into the recessed portion of the base, making installation simple. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an automatic toilet flushing device provided in an embodiment of this utility model;

[0020] Figure 2 A top view of the automatic toilet flushing device provided in an embodiment of this utility model;

[0021] Figure 3 for Figure 2 Sectional view along line AA in the middle;

[0022] Figure 4 A schematic diagram showing the removal of the box body of the automatic toilet flushing device provided in an embodiment of this utility model;

[0023] Figure 5 A schematic diagram showing the removal of the box body of the automatic toilet flushing device provided in an embodiment of this utility model;

[0024] Figure 6 A flowchart illustrating the installation method of the automatic toilet flushing device provided in this embodiment of the utility model;

[0025] Figure 7 A partial sectional view of the automatic toilet flushing device provided in an embodiment of this utility model;

[0026] Figure 8A schematic diagram showing the movable plate of the automatic toilet flushing device provided in this embodiment of the utility model in the first position;

[0027] Figure 9 A schematic diagram showing the movable plate of the automatic toilet flushing device provided in this embodiment of the present invention in the second position;

[0028] Figure 10 A schematic diagram showing the movable plate of the automatic toilet flushing device provided in this embodiment of the present invention in the second position;

[0029] Figure 11 A schematic diagram of the movable plate of the automatic toilet flushing device provided in an embodiment of this utility model;

[0030] Figure 12 A schematic diagram of the movable plate of the automatic toilet flushing device provided in an embodiment of this utility model;

[0031] Icons: 100, Automatic toilet flushing device; 1, Box body; 11, First opening; 2, Base; 21, Bottom surface; 23, Base recess; 231, Connecting side wall; 232, Protrusion; 233, Second opening; 24, Third opening; 3, Gear; 4, Rack; 41, Connecting rod; 42, Connecting part; 421, Recess; 5, Screw; 6, Fixing sleeve; 7, Limiting plate; 71, Limiting protrusion; 8, Guide rail; 81, Track; 82, Support part; 9, Moving plate; 91, First protrusion; 92, Moving plate extension. Detailed Implementation

[0032] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, the terms "first," "second," and "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0035] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] As people's demands for convenient toilet flushing increase, the application of contactless toilet flushing devices is becoming more and more widespread. A toilet flushing device includes a fixed box installed on the toilet tank. Inside the fixed box are a motor and gears. The gears are connected to a rack, which in turn is connected to a screw. The screw is located above the toilet flush button. When the user issues a command to the toilet flushing device, the controller sends a signal to the motor. The motor rotates, driving the gears to rotate, which in turn drives the rack, causing the screw to press the toilet flush button, thus completing the toilet flushing process.

[0037] In the existing technology, the base of the toilet flushing device is installed on the toilet tank. The bottom of the base has a wiring port. When wiring is required, the user needs to remove the entire base or remove the fixing box to connect the wiring port and the cable. The removal process is cumbersome and inconvenient for the user.

[0038] Reference Figures 1-12 This application provides an automatic toilet flushing device with a sliding movable plate. The movable plate is connected to the base of the automatic toilet flushing device. The user can slide the movable plate to remove it to facilitate the connection of the wiring port and cable on the base. The user does not need to disassemble the base or the box again, which enhances the user experience.

[0039] The automatic toilet flushing device 100 includes a housing 1, and a cavity is formed inside the housing 1.

[0040] The automatic toilet flushing device 100 includes a base 2, which is located at the bottom of the housing 1 and connected to the toilet tank. The base 2 is used to fix the toilet flushing device above the toilet tank.

[0041] The top surface of box 1 and the base 2 are positioned opposite each other, and the extension direction of box 1 between its top surface and the base 2 is defined as the vertical direction.

[0042] The toilet flushing system includes a controller, which is used to receive instructions and send signals.

[0043] The toilet flushing device includes a motor, a controller, and an electrical connection between the motor and the controller. When the controller receives a flushing command, it sends a signal to the motor. The motor receives the signal from the controller and changes its rotation direction.

[0044] The toilet flushing device includes a gear 3, which is connected to the output shaft of the motor. When the motor rotates, the gear 3 rotates synchronously with the output shaft of the motor.

[0045] The toilet flushing device includes a rack 4, which is located on one side of a gear 3. The gear 3 and the rack 4 mesh, and when the gear 3 rotates, the rack 4 moves in the up and down direction.

[0046] The toilet flushing device includes a push rod, which is installed above the toilet button. The push rod is connected to a rack 4. When the motor rotates, the gear 3 rotates to drive the rack 4 to rotate up and down, so that the rack 4 drives the push rod to move up and down, thereby pressing or lifting the toilet button to flush the toilet.

[0047] In some embodiments, the pressing rod is a screw 5.

[0048] The toilet flushing device includes a guide rail 8 that extends vertically. A rack 4 is slidably connected to the guide rail 8 so that the rack 4 can move vertically along the guide rail 8. The rack 4 slides along the guide rail 8, which makes the movement path of the rack 4 more stable and reduces the probability of the rack 4 shifting position during movement, thereby enhancing the operational stability of the toilet flushing device.

[0049] The rack 4 includes a connecting rod 41 extending along the output shaft of the motor. One end of the connecting rod is provided with a hollow connecting hole. The pressing rod is connected in the connecting hole so that the connecting rod can fix the position of the pressing rod. The pressing rod can only move up and down in the connecting hole so that the pressing rod is limited above the toilet button, thereby reducing the probability of the pressing rod shifting position during long-term use.

[0050] Reference Figures 7-12 The base 2 has a bottom surface 21 that is connected to the toilet tank. The bottom surface 21 is provided with a base recess 23 that is recessed towards the top surface of the box body 1. A cavity is formed in the base recess 23.

[0051] The automatic toilet flushing device 100 includes a movable plate 9, which is slidably connected to a base 2. The movable plate 9 is at least partially disposed in a recess 23 of the base so that the movable plate 9 can slide in the recess 23 of the base. The movable plate 9 is slidably connected to the recess 23 of the base so that the movable plate 9 and the base 2 are separable.

[0052] The movable plate 9 can slide to at least three positions:

[0053] In the first position, the top of the movable plate 9 moves to contact the blocking side wall of the recessed part 23 of the base, and the movable plate 9 and the base 2 are installed. The movable plate 9 is installed at the bottom of the base 2.

[0054] In the second position, the distance between the top of the movable plate 9 and the blocking sidewall of the base recess 23 is L1, and the extension length of the movable plate 9 along the sliding direction is L2, where L1 < L2. At this time, the movable plate 9 is in the process of sliding out or sliding into the base recess 23.

[0055] In the third position, the distance between the top of the movable plate 9 and the blocking sidewall of the base recess 23 is L3, where L3 ≥ L1, so that the movable plate 9 and the base 2 are separated, and the base recess 23 is exposed to the external environment, allowing the user to easily connect the cable to the interface in the base recess 23.

[0056] In the prior art, the base 2 of the automatic toilet flushing device 100 does not have a movable plate 9. Users can only connect the cable to the base 2 by disassembling the mounting box or the base 2. However, the automatic toilet flushing device 100 of this application has a movable plate 9 on the base 2. The movable plate 9 can slide in the recessed part 23 of the base. When the movable plate 9 slides out and separates from the base 2, the wiring port on the base 2 is exposed to the external environment. Users can directly connect the cable to the wiring port without disassembling other parts. When the wiring is completed, users only need to slide the movable plate 9 back into the recessed part 23 of the base. The installation steps are simple, convenient for users to operate, and provide a better user experience. This is a significant improvement compared to the prior art.

[0057] In some embodiments of this application, the sliding direction of the movable plate 9 is defined as the second direction, and the base recess 23 has at least one connecting sidewall 231 extending along the second direction, and the connecting sidewall 231 is provided with a protruding block 232 protruding toward the center of the bottom surface 21.

[0058] The movable plate 9 has at least one first protrusion 91 extending along a second direction. The movable plate 9 has at least one side extending along a second direction, on which the first protrusion 91 protrudes outward along the side extending along the second direction. When the movable plate 9 is connected to the base recess 23, the first protrusion 91 is connected to the side of the protrusion block 232 away from the bottom surface 21, so that the movable plate 9 is limited above the protrusion block 232, thereby limiting the movable plate 9 inside the base recess 23.

[0059] It should be noted that the first protrusion 91 is strip-shaped, and the distance of the first protrusion 91 extending along the second direction is not less than the distance of the protrusion block 232 extending along the second direction, so that the first protrusion 91 slides above the protrusion block 232 for a longer time during the sliding process of the moving plate 9, so that the sliding of the moving plate 9 is more stable during the sliding process.

[0060] In some embodiments, the base recess 23 has two opposing connecting sidewalls 231, each connecting sidewall 231 having at least two protrusions 232, and the two connecting sidewalls 231 are connected by a blocking sidewall. When the moving plate 9 slides into the inner chamber of the base recess 23, the protrusions 232 of the connecting sidewalls 231 on both sides can more stably support the moving plate 9.

[0061] In some embodiments, the movable plate 9 has at least one handle for gripping, which may be a handle located outside the space of the box body 1, or a movable plate extension 92 that cooperates with the side wall of the box body 1.

[0062] A first opening 11 is provided on one side wall of the box body 1 that extends in the vertical direction. The shape of the movable plate extension 92 matches the shape of the first opening 11 so that the movable plate 9 and the box body 1 are connected. This exposes the movable plate extension 92 to the external environment, making it convenient for the user to touch the movable plate extension 92 and pull the movable plate 9.

[0063] In some embodiments, a second opening 233 is also provided on the connecting sidewall 231. The second opening 233 is located between two protrusions 232 and is used to move the movable plate 9 connected in the recessed portion 23 of the base. The user can push the movable plate 9 in the recessed portion 23 of the base through the second opening 233.

[0064] In some embodiments, the base 2 is provided with a third opening 24 opposite to the protrusion 232. The third opening 24 is located above the protrusion 232. When the movable plate 9 slides in the recess 23 of the base, the third opening 24 of the base 2 can reduce the contact area between the base 2 and the movable plate 9, thereby reducing the friction when the movable plate 9 slides, so that the movable plate 9 can slide out smoothly.

[0065] In some embodiments, the length of the first protrusion 91 extending along the second direction is less than the length of the movable plate 9 extending along the second direction, so that the width of one end of the movable plate 9 is smaller, making it easier for the narrower end of the movable plate 9 to be inserted into the base recess 23 first, so that there is less obstruction when the movable plate 9 enters the base recess 23.

[0066] In some embodiments of this application, nano-adhesive is pasted between the base 2 and the toilet tank. The nano-adhesive has strong adhesion to fix the base 2 and the toilet tank together, thereby making the base 2 stably attached to the top surface of the toilet tank.

[0067] In some embodiments of this application, the automatic toilet flushing device 100 includes a radar, which is electrically connected to a controller to transmit signals collected by the radar to the controller, which receives the radar signals and calculates whether flushing is required.

[0068] The radar is a 60GHz millimeter-wave radar module, a 24G millimeter-wave radar module, or a UWB ultra-wideband radar module, to make the radar signal discrimination more accurate and the radar signal anti-interference capability stronger.

[0069] The automatic toilet flushing device 100 includes a fixing sleeve 6, which is threadedly connected to a screw 5, with the screw 5 passing through a hole in the center of the fixing sleeve 6. When installing the automatic toilet flushing device 100, the user can rotate the screw 5 to move it downwards until the free travel of the toilet flush button is completely eliminated. The user then uses the fixing sleeve 6 to fix the position of the screw 5, so that the screw 5 is pressed downwards until the free travel of the toilet flush button is eliminated.

[0070] The automatic toilet flushing device 100 of this application has a fixing sleeve 6 on the screw 5. During installation, the fixing sleeve 6 can be rotated to move the screw 5 downwards until the empty travel of the toilet flush button is eliminated. At this point, the screw 5 stops rotating, and the fixing sleeve 6 fixes the position of the screw 5. After the screw 5 eliminates the empty travel of the toilet button, the controller sends a signal to the motor, and the motor rotates to drive the screw 5 downwards, which can immediately flush without any reaction time. Users do not need to stay around the toilet, which improves the user experience and is a significant improvement over the prior art.

[0071] In some embodiments, the retaining sleeve 6 is a nut, and the nut and the screw 5 are threaded together. The nut is used to fix the screw 5 in the position where the toilet flush button has been removed.

[0072] In some embodiments, the nut is located on the side of the connecting rod 41 near the base 2, that is, the nut is located below the connecting rod 41. The nut rotates to change the extension height of the screw 5 below the nut, so that the screw 5 can move up and down. This allows the user to change the position of the screw 5 according to the actual empty travel depth of the toilet button. The nut being limited below the connecting rod 41 also prevents the nut from being blocked below the connecting rod 41 during rotation, so that the nut can move between the connecting rod 41 and the base 2. The nut will not detach from the screw 5, reducing the probability of the nut falling off.

[0073] In some embodiments of this application, the height of the screw 5 is H1, and the height of the housing 1 is H2, where H1 ≥ H2. When the height of the screw 5 is high enough, the range of distances by which the screw 5 moves up and down due to the rotation of the nut is larger, so that the screw 5 can meet the needs of various toilet flush buttons to eliminate empty strokes, and has a wider range of applications.

[0074] In some embodiments of this application, the controller is configured to send a signal to the motor upon receiving a power-on signal, causing the motor to rotate and move the screw 5 to its highest position. The user can rotate the nut to press the screw 5 downwards, thereby eliminating the free travel of the toilet flush button and preventing the screw 5 from being damaged by rotating the nut due to an initially low position.

[0075] In some embodiments of this application, the toilet flushing device further includes a limiting plate 7, a rack 4 disposed between the limiting plate 7 and the gear 3, the rack 4 and the limiting plate 7 in contact, the limiting plate 7 having at least one limiting protrusion 71 extending toward the rack 4, the rack 4 being at least partially located above or below the protrusion, so that the limiting protrusion 71 restricts the vertical movement distance of the rack 4, when the rack 4 abuts against the limiting protrusion 71, the rack 4 can no longer continue to move along the original direction, thereby avoiding the rack 4 from colliding with the housing 1, and also limiting the vertical movement distance of the screw 5 driven by the rack 4, so that the screw 5 moves vertically within a preset distance range.

[0076] In some embodiments, the limiting plate 7 and the gear 3 are arranged opposite to each other, and the rack 4 is disposed between the limiting plate 7 and the gear 3. The limiting plate 7 is provided with at least two limiting protrusions 71 extending toward the rack 4. The two limiting protrusions 71 are arranged vertically, and the rack 4 is at least partially located in the gap between the two limiting protrusions 71, so that the rack 4 is restricted to move between the two limiting protrusions 71, thereby limiting the distance the rack moves in the vertical direction and reducing the probability of the rack moving upward and hitting the box.

[0077] The rack 4 can only move within the vertical distance range defined by the two limiting protrusions 71, so that the rack 4 is limited in the vertical movement distance, reducing the probability of the rack 4 colliding with the box 1. The distance that the screw 5 driven by the rack 4 moves is also limited, so that the screw 5 can press the toilet flush button within the effective distance.

[0078] In some embodiments of this application, the rack 4 includes a connecting part 42 and a connecting rod 41. The connecting rod 41 is used to connect with the screw 5. The connecting part 42 is provided with a recess 421. The shape of the recess 421 matches the shape of the guide rail 8 so that part of the guide rail 8 is slidably connected in the recess 421.

[0079] One side of the connecting part 42 is provided with straight teeth extending in the vertical direction. The straight teeth mesh with the gear 3. The rotation of the gear 3 drives the connecting part 42 to move up and down, so that the rotation of the motor output shaft is converted into the vertical movement of the connecting part 42. The connecting part 42 is provided with a recess 421. The shape of the recess 421 matches the shape of the track 81 of the guide rail 8, so that part of the guide rail 8 is slidably connected inside the recess 421, so that the connecting part 42 can only move up and down along the guide rail 8, so that the sliding is more stable when the connecting part 42 drives the connecting rod 41 to move.

[0080] The extension direction of the connecting rod 41 and the extension direction of the connecting part 42 form a 90° angle, so that when the connecting part 42 moves, it drives the connecting rod 41 to move up and down, and the connecting rod 41 is sleeved on the outside of the screw 5.

[0081] In some embodiments of this application, the guide rail 8 includes a track 81 and a support portion 82. The support portion 82 is fixedly connected to the base 2. The support portion 82 is a plate-like structure that extends in the same direction as the track 81, that is, it extends along the vertical direction. The support portion 82 is connected to the base 2 so that the track 81 and the base 2 are fixedly connected.

[0082] The track 81 is a protruding structure connected inside the recess 421. The track 81 is designed with a cross-section of a longitudinal rectangle and a transverse rectangle connected together, which makes the connection between the track 81 and the recess 421 more stable. The track 81 is blocked by the recess 421, reducing the probability of the track 81 and the recess 421 separating, making the connection between the rack 4 and the guide rail 8 more stable when the rack moves.

[0083] Reference Figure 6 The installation method of the automatic toilet flushing device 100 of this application is described in detail below:

[0084] Install the automatic toilet flushing device 100 above the toilet tank, fix the fixing box and the tank, adjust the base 2 so that the base 2 and the tank are engaged, and move the screw 5 directly above the toilet flush button.

[0085] When the automatic toilet flushing device 100 is powered on and turned on, the controller sends a signal to the motor, and the motor rotates to move the screw 5 to the initial position of the highest point.

[0086] Rotate screw 5 to move screw 5 downwards until the empty stroke of screw 5 pressing the toilet flush button is completely eliminated;

[0087] Rotate the nut to lock the screw 5 in place, so that the screw 5 stops at the position where the empty stroke of the toilet flush button is completely eliminated.

Claims

1. A toilet automatic flushing device, characterized by, The application relates to a toilet automatic flushing device. The device comprises: a box body, a cavity being formed in the box body; a base arranged at the bottom of the box body and used for connecting a toilet water tank; the base has a bottom surface, and a base recess is arranged on the bottom surface; a controller arranged in the box body; a motor arranged in the box body and electrically connected with the controller; a pressing rod arranged outside the box body and arranged opposite to a toilet flushing button; the pressing rod is driven by the motor to press the toilet flushing button; 2. The automatic flushing device for toilet according to claim 1, wherein a moving plate arranged at least partially in the base recess; the moving plate is in sliding connection with the base recess, so that the moving plate and the base can be separated. The sliding direction of the moving plate is defined as a second direction; the base recess has at least one connecting side wall extending along the second direction; and a protruding block protruding towards the center of the bottom surface is arranged on the connecting side wall; 3. A toilet automatic flushing device according to claim 1 or 2, characterized in that, the moving plate has at least one first protruding portion extending along the second direction; and the first protruding portion is connected to the side of the protruding block away from the bottom surface.

4. The automatic toilet flushing apparatus according to claim 1, characterized by Nano glue is arranged between the base and the toilet water tank, so that the base and the toilet water tank are fixedly connected.

5. The automatic toilet flushing apparatus according to claim 2, wherein A first opening is arranged on the box body and perpendicular to the bottom surface; the moving plate comprises a moving plate extension perpendicular to the bottom surface; the shape of the moving plate extension is matched with the shape of the first opening, so that the moving plate extension and the first opening are in matched connection.

6. The automatic flushing device according to claim 2 or 5, wherein A second opening is further arranged on the connecting side wall and between the two protruding blocks, so that the moving plate in the base recess is pushed through the second opening.

7. The automatic toilet flushing apparatus according to claim 2, wherein A third opening is arranged on the base and opposite to the protruding block; the third opening is located on the side of the protruding block away from the bottom surface.

8. The automatic toilet flushing apparatus according to claim 1 or 2 or 4 or 5 or 7, characterized by, The length of the first protruding portion extending along the second direction is smaller than the length of the moving plate extending along the second direction; when the moving plate is installed to the base, the part of the moving plate without the first protruding portion enters the base recess first, and then the part of the moving plate with the first protruding portion enters the base recess. The device further comprises: a gear connected with the output shaft of the motor; a rack in meshing connection with the gear; the rack comprises a connecting rod arranged at least partially outside the box body; one end of the connecting rod is connected with the pressing rod, so that the pressing rod is moved when the gear is moved by the motor; 9. The automatic toilet flushing apparatus according to claim 1 or 2, characterized by a guide rail in sliding connection with the rack, so that the rack moves along the guide rail.

10. The automatic toilet flushing apparatus according to claim 1 or 2, characterized by The toilet automatic flushing device comprises a radar in electric connection with the controller; the radar is a 60GHz millimeter wave radar module, a 24G millimeter wave radar module or a UWB ultra-wideband radar module. The pressing rod is a screw rod; and the toilet automatic flushing device further comprises a fixing sleeve connected with the screw rod.

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