Damper, recognition device and toilet lid

Abstract

The utility model discloses a damper, a recognition device and a toilet lid. The damper comprises a shell, an output shaft and a magnet. The shell is used for being installed on a first workpiece, the first end of the output shaft is assembled in the shell, and the second end of the output shaft extends out of the shell and is used for being connected with a second workpiece. The magnet is assembled at the first end of the output shaft, rotates along with the output shaft and is used for generating an induced magnetic field. According to the damper, the magnet is arranged at one end of the output shaft, the rotation action of the output shaft of the damper can be converted into the rotation action of the induced magnetic field of the magnet, the detection device can detect the rotation position of the output shaft by detecting the induced magnetic field, and non-contact detection can be conducted on the rotation position of the output shaft of the damper; the method is simple and practicable and low in cost.

Description

Technical Field

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

[0002] In some opening and closing mechanisms installed by hinges, such as doors and door frames, toilet lids and fixed seats, dampers are usually added at the hinges to act as a buffer, reduce opening and closing noise, prevent pinching, and improve user experience.

[0003] When it is necessary to detect the opening and closing angle of the opening and closing mechanism, it is usually necessary to add an additional angle detection device at the hinge or damper. The installation structure is complex, the stability and reliability are poor, and the device integration is not high. Utility Model Content

[0004] The embodiments of the present utility model provide a damper, an identification device and a toilet cover to solve the problem of a complex installation structure when the existing damper is integrated with an angle detection function.

[0005] The embodiment of the utility model provides a damper, comprising a housing, an output shaft and a magnet;

[0006] The housing is used to be mounted on a first workpiece, the first end of the output shaft is assembled in the housing, and the second end of the output shaft extends out of the housing and is used to connect to a second workpiece;

[0007] The magnet is mounted on the first end of the output shaft and rotates along with the output shaft to generate an induced magnetic field.

[0008] Preferably, the second end of the output shaft is provided with a groove;

[0009] The magnet is mounted in the groove.

[0010] Preferably, a damping fluid is provided in the housing; the output shaft comprises a damping portion and a flat head output portion extending from one end of the damping portion;

[0011] The damping part is arranged in the housing and is used to form a damping force between the damping fluid and the output shaft when the output shaft rotates;

[0012] The flat head output portion is arranged outside the housing and is used for connecting to a second workpiece.

[0013] Preferably, the output shaft further comprises a sealing portion provided between the damping portion and the flat head output portion;

[0014] The outer diameter of the sealing portion is greater than the outer diameter of the flat head output portion;

[0015] The housing comprises a shell and an end cover provided at one end of the shell;

[0016] The end cover is provided with an opening, the flat head output portion is passed through the opening, and one side surface of the sealing portion abuts against one side surface of the end cover.

[0017] Preferably, the damper further comprises a gasket;

[0018] The gasket is sleeved outside the flat head output portion, one side of the gasket abuts against the sealing portion, and the other side of the gasket abuts against the end cover.

[0019] Preferably, the damper further comprises a sealing ring;

[0020] A sealing groove is provided on the outer side of the sealing portion along the circumferential direction;

[0021] The sealing ring is arranged in the sealing groove, and the sealing ring abuts against the sealing groove and the housing.

[0022] Preferably, the damping part includes a shaft body and a scraper arranged outside the shaft body;

[0023] The scraper includes a first contact surface and a second contact surface;

[0024] The first contact surface is used to generate a damping force between the damping fluid and the shaft when the shaft rotates in a clockwise direction, and the second contact surface is used to generate a damping force between the damping fluid and the shaft when the shaft rotates in a counterclockwise direction. The damping forces generated between the first contact surface and the second contact surface and the damping fluid are different.

[0025] The embodiment of the present utility model provides an identification device, comprising a magnetic line sensor, a controller and any one of the dampers described above;

[0026] The magnetic flux sensor is connected to the controller and is arranged opposite to the magnet in the damper, and is used to output a sensing signal to the controller according to the rotation action of the induced magnetic field;

[0027] The controller is used to identify the rotational position of the output shaft of the damper according to the sensor signal.

[0028] Preferably, the magnetic line sensor comprises a Hall sensor.

[0029] The embodiment of the present utility model further provides a toilet seat, comprising a fixing seat, a toilet seat cover plate, a toilet seat cover ring and at least one identification device as described in any one of the above items;

[0030] The toilet cover plate and the toilet cover ring are rotatably mounted on the toilet seat;

[0031] The output shaft of the damper is connected to the toilet cover plate or the toilet cover ring, and the outer shell of the damper is connected to the fixing seat;

[0032] The controller is used to identify the rotational position of the toilet cover and / or the toilet cover ring.

[0033] An embodiment of the utility model provides a damper, an identification device and a toilet cover. The damper can convert the rotational movement of the output shaft of the damper into the rotational movement of the induced magnetic field of the magnet by arranging a magnet at one end of the output shaft, so that the detection device can detect the rotational position of the output shaft by detecting the induced magnetic field, and can perform non-contact detection of the rotational position of the output shaft of the damper, which is simple, easy and low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0035] Figure 1 This is a structural diagram of a damper in one embodiment of the present utility model;

[0036] Figure 2 This is another structural diagram of the damper in one embodiment of the present utility model;

[0037] Figure 3 It is a block diagram of the identification device in one embodiment of the present invention.

[0038] In the figure: 1. Outer shell; 11. Shell; 12. End cover; 2. Output shaft; 21. Damping part; 211. Shaft body; 212. Scraper; 2121. First contact surface; 2122. Second contact surface; 22. Flat head output part; 23. Sealing part; 3. Magnet; 4. Groove; 5. Damping fluid; 6. Gasket; 7. Sealing ring; 8. Sealing groove; 9. Magnetic line sensor; 10. Controller. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] In the description of the present invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0041] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0042] An embodiment of the present utility model provides a damper, comprising a housing 1, an output shaft 2 and a magnet 3; the housing 1 is used to be installed on a first workpiece, the first end of the output shaft 2 is assembled in the housing 1, and the second end of the output shaft 2 extends out of the housing 1 and is used to connect to the second workpiece; the magnet 3 is assembled at the first end of the output shaft 2, rotates with the output shaft 2, and is used to generate an induced magnetic field.

[0043] As an example, the damper includes a housing 1, an output shaft 2, and a magnet 3. The housing 1 is fixed to a first workpiece. The first end of the output shaft 2 is rotatably mounted within the housing 1. The other end of the output shaft 2 extends out of the housing 1 and is connected to a second workpiece. The second workpiece is rotatably connected to the first workpiece. The second workpiece is a rotating part, and the first workpiece is a fixed part. For example, the second workpiece is a toilet cover and / or toilet cover ring, and the first workpiece is a fixed base for hingedly mounting the toilet cover and toilet cover ring. The damper is mounted on the fixed base, and the housing 1 of the damper is fixedly connected to the fixed base. The output shaft 2 of the damper is connected to the toilet cover or toilet cover ring. The magnet 3 is disposed at the first end of the output shaft 2 and rotates synchronously with the output shaft 2. During rotation, the induced magnetic field generated by the magnet 3 also rotates with the output shaft 2. For example, the poles of the magnet 3 are arranged in the same radial direction as the output shaft 2, and the magnet 3 is located at the axis of the output shaft 2. When the output shaft 2 rotates, the induced magnetic field generated by the magnet 3 also rotates around the axis of the output shaft 2. A magnetic flux sensor 9 is fixedly installed near the damper, for example, outside the damper housing 1. When the magnet 3 rotates with the output shaft 2, the relative position between the generated induced magnetic field and the magnetic flux sensor 9 changes, causing the magnetic induction intensity that can be detected by the magnetic flux sensor 9 to change, thereby determining the rotation movement of the output shaft 2, detecting the rotation position of the output shaft 2, and then obtaining the change in the rotation position and the rotation angle of the output shaft 2.

[0044] In this example, by setting a magnet 3 at one end of the output shaft 2 of the damper, the rotational movement of the output shaft 2 of the damper can be converted into the rotational movement of the induced magnetic field of the magnet 3, so that the detection device can detect the rotational position of the output shaft 2 by detecting the induced magnetic field, and can perform non-contact detection of the rotational position of the output shaft 2 of the damper, which is simple, easy and low-cost.

[0045] In one embodiment, a groove 4 is provided at the second end of the output shaft 2 ; the magnet 3 is assembled in the groove 4 .

[0046] As an example, a groove 4 is defined at the second end of the output shaft 2, and the magnet 3 is fixedly mounted at the bottom of the groove 4. The magnet 3 can be a cylindrical magnet. When the poles of the magnet 3 are arranged perpendicular to the axial direction of the output shaft 2, the groove 4 can be positioned at the axis of the output shaft 2. When the magnet 3 rotates with the output shaft 2, the poles of the magnet 3 rotate around the axis of the output shaft 2, and the generated induced magnetic field rotates with the output shaft 2.

[0047] In one embodiment, a damping fluid 5 is provided in the housing 1; the output shaft 2 includes a damping portion 21 and a flat head output portion 22 extending from one end of the damping portion 21; the damping portion 21 is provided in the housing 1, and is used to form a damping force between the damping fluid 5 when the output shaft 2 rotates; the flat head output portion 22 is provided outside the housing 1, and is used to connect to a second workpiece.

[0048] As an example, the output shaft 2 includes a damping portion 21 and a flat-head output portion 22 extending from one end of the damping portion 21. The damping portion 21 is disposed within the housing 1 and is filled with a damping fluid 5. During rotation, the damping portion 21 displaces the damping fluid 5, overcoming the viscous force generated by the damping fluid 5 during its flow and generating a damping force. The flat-head output portion 22 extends from the housing 1 and is configured to engage a second workpiece, transmitting the damping force generated by the output shaft 2 during rotation and creating a damping effect on the second workpiece.

[0049] In one embodiment, the output shaft 2 further includes a sealing portion 23 arranged between the damping portion 21 and the flat head output portion 22; the outer diameter of the sealing portion 23 is larger than the outer diameter of the flat head output portion 22; the housing 1 includes a shell 11 and an end cover 12 arranged at one end of the shell 11; an opening is provided on the end cover 12, the flat head output portion 22 is inserted into the opening, and one side of the sealing portion 23 abuts against one side of the end cover 12.

[0050] As an example, the housing 1 includes a cylindrical shell 11 with an opening at one end and an end cap 12 disposed at the opening of the shell 11. The end of the shell 11 away from the end cap 12 is provided with a square boss for plugging into a first workpiece, such as a fixed seat. When assembling the damper, the damping portion 21 is first inserted into the shell 11, then filled with damping fluid 5, and finally sealed with the end cap 12. The output shaft 2 also includes a sealing portion 23 disposed between the damping portion 21 and the flat head output portion 22. The first end of the sealing portion 23 is connected to the flat head output portion 22, and the second end of the sealing portion 23 is connected to the damping portion 21. The sealing portion 23 may be a cylindrical shaft 211. The outer diameter of the sealing portion 23 is larger than the outer diameter of the flat head output portion 22. When the sealing portion 23 and the damping portion 21 are enclosed in the shell 11 by the end cap 12, the first end of the sealing portion 23 abuts the end cap 12, preventing the output shaft 2 from falling out of the shell 11.

[0051] In one embodiment, the damper further includes a gasket 6 ; the gasket 6 is sleeved outside the flat head output portion 22 , one side of the gasket 6 abuts against the sealing portion 23 , and the other side of the gasket 6 abuts against the end cover 12 .

[0052] As an example, the damper further includes a gasket 6. The gasket 6 is an annular gasket 6 that is sleeved over the flat head output portion 22. One side of the gasket 6 abuts against the sealing portion 23, and the other side abuts against the end cover 12. The gasket 6 acts as a buffer between the sealing portion 23 and the end cover 12, reducing the friction between the sealing portion 23 and the end cover 12 and improving the friction resistance of the output shaft 2.

[0053] In one embodiment, the damper further includes a sealing ring 7 ; a sealing groove 8 is formed on the outer surface of the sealing portion 23 along the circumferential direction; the sealing ring 7 is disposed in the sealing groove 8 , and the sealing ring 7 abuts against the sealing groove 8 and the housing 11 .

[0054] As an example, the damper further includes a sealing ring 7 sleeved over the sealing portion 23. The sealing ring 7 abuts the sealing portion 23 and the interior of the housing 11, forming a seal between the sealing portion 23 and the housing 11 to prevent the outflow of the damping fluid 5. A sealing groove 8 can be defined circumferentially on the outer surface of the sealing portion 23, and the sealing ring 7 is disposed within the sealing groove 8 to prevent it from falling out.

[0055] In one embodiment, the damping portion 21 includes a shaft body 211 and a scraper 212 arranged outside the shaft body 211; the scraper 212 includes a first contact surface 2121 and a second contact surface 2122; the first contact surface 2121 is used to generate a damping force between the shaft body 211 and the damping fluid 5 when the shaft body 211 rotates in a clockwise direction, and the second contact surface 2122 is used to generate a damping force between the shaft body 211 and the damping fluid 5 when the shaft body 211 rotates in a counterclockwise direction. The damping forces generated between the first contact surface 2121 and the second contact surface 2122 and the damping fluid 5 are different.

[0056] As an example, the damping portion 21 includes a shaft 211 and a scraper 212 disposed outside the shaft 211. Multiple scrapers 212 may be provided on the damping portion 21, and the multiple scrapers 212 are centrally symmetrically arranged relative to the axis of the output shaft 2. Each scraper 212 includes a first contact surface 2121 and a second contact surface 2122. The first contact surface 2121 is used to displace the damping fluid 5 when the shaft 211 rotates clockwise, thereby overcoming the viscous force generated by the damping fluid 5 during flow and generating a damping force. The second contact surface 2122 is used to displace the damping fluid 5 when the shaft 211 rotates counterclockwise, thereby overcoming the viscous force generated by the damping fluid 5 during flow and generating a damping force. The contact areas between the first contact surface 2121 and the second contact surface 2122 on the same scraper 212 and the damping liquid 5 can be made different, or the angles between the first contact surface 2121 and the second contact surface 2122 on the same scraper 212 and the shaft 211 in the tangential direction can be made different, so that the damping force between the first contact surface 2121 and the second contact surface 2122 of each scraper 212 and the damping liquid 5 is different, so that the damping force generated by the damper when rotating in the clockwise direction and the counterclockwise direction is different. When the damper is applied to the toilet cover, it can generate a larger damping force when the toilet cover plate or toilet cover ring rotates in the direction close to the toilet (that is, closing the cover), and generate a smaller damping force when the toilet cover plate or toilet cover ring rotates in the direction away from the toilet (that is, lifting the cover), thereby facilitating daily use of the toilet.

[0057] An embodiment of the present utility model also provides an identification device, including a controller 10, a magnetic line sensor 9 and the damper of any of the above embodiments; the magnetic line sensor 9 is connected to the controller 10 and is arranged opposite to the magnet 3 in the damper, and is used to output a sensing signal to the controller 10 according to the rotational movement of the induced magnetic field; the controller 10 is used to identify the rotational position of the output shaft 2 of the damper according to the sensing signal.

[0058] As an example, the identification device includes a controller 10, a magnetic flux sensor 9, and the damper described in any of the above examples. The magnetic flux sensor 9 is electrically connected to the controller 10 and positioned opposite the magnet 3 in the damper. Specifically, it can be mounted on the damper housing 1, spaced from the second end of the output shaft 2, or positioned on one side of the output shaft 2. When the magnet 3 rotates with the output shaft 2, the induced magnetic field also rotates with the magnet 3. The magnetic flux intensity detected by the magnetic flux sensor 9 changes due to the rotation of the induced magnetic field. Based on the change in magnetic flux intensity, the magnetic flux sensor 9 outputs a corresponding sensor signal to the controller 10. The controller 10 is fixedly mounted on the first workpiece or on the damper housing 1 and can read the sensor signal output by the magnetic flux sensor 9 to identify the rotational position of the magnet 3. Based on this rotational position, the controller can determine whether the connected second workpiece has moved to a specific position and perform corresponding simple control. The controller can also calculate the change in the rotational position and the rotation angle based on this rotational position to perform corresponding refined control.

[0059] In this example, by setting a magnet 3 at one end of the output shaft 2 of the damper, the rotational movement of the output shaft 2 of the damper can be converted into the rotational movement of the induced magnetic field of the magnet 3, so that the magnetic line sensor 9 can detect the rotational position of the output shaft 2 by detecting the induced magnetic field, and can perform non-contact detection of the rotational position of the damper and the second workpiece connected to the damper, which is simple, easy and low-cost.

[0060] In one embodiment, the magnetic field line sensor 9 includes a Hall sensor.

[0061] As an example, the magnetic flux sensor 9 includes a Hall sensor, which is electrically connected to the controller 10. The sensing surface of the Hall sensor is arranged opposite the magnet 3, and can sense the change in magnetic induction intensity caused by the rotation of the magnet 3, and output a corresponding sensing signal to the controller 10. The Hall sensor can be a switch-type Hall sensor or a linear Hall sensor. The switch-type Hall sensor can detect a specific rotational position based on the magnetic induction intensity. When the second workpiece rotates to a specific position, it outputs a sensing signal, allowing the controller to determine that the second workpiece has rotated to the specific position based on the sensing signal, thereby completing a simple control action. The linear Hall sensor can feedback different sensing signals based on different magnetic induction intensities. Based on the sensing signal, the controller can determine the rotational position of the second workpiece, calculate the change in the rotational position and the rotation angle, and perform corresponding refined control.

[0062] An embodiment of the present utility model also provides a toilet cover, comprising a fixed seat, a toilet cover plate, a toilet cover ring and at least one identification device in any of the above embodiments; the toilet cover plate and the toilet cover ring can be rotatably mounted on the toilet seat; the output shaft 2 of the damper is connected to the toilet cover plate or the toilet cover ring, and the outer shell 1 of the damper is connected to the fixed seat; a controller 10 is used to identify the rotational position of the toilet cover plate and / or the toilet cover ring.

[0063] As an example, the toilet cover includes a fixed seat, a toilet cover plate, a toilet cover ring and at least one identification device in any of the above examples. The magnetic line sensor 9 in the identification device can be assembled on the damper housing 1, spaced apart from the second end of the output shaft 2, or arranged on one side of the output shaft 2. The controller 10 can be fixedly assembled on the fixed seat, or assembled on the damper housing 1, the damper housing 1 is fixedly mounted on the fixed seat, and the second end of the output shaft 2 of the damper is connected to a toilet cover plate or a toilet cover ring, which is used to provide damping force for the rotation of the toilet cover plate or toilet cover ring when the toilet cover plate or toilet cover ring is flipped relative to the fixed seat, slowing down the rotation speed of the toilet cover plate or toilet cover ring, and preventing it from rotating too fast. At the same time, when the toilet cover or toilet lid ring rotates relative to the fixed seat, the induced magnetic field generated by the magnet 3 in the damper also rotates accordingly. The magnetic field sensor 9 in the identification device detects the change in magnetic induction intensity caused by the rotation of the induced magnetic field and outputs a corresponding sensor signal to the controller 10, so that the controller 10 can identify the rotation position of the toilet cover or toilet lid ring based on the sensor signal. Furthermore, the controller 10 can be electrically connected to the flushing mechanism or deodorizing mechanism of the toilet, and according to the rotation position of the cover and / or toilet lid ring, it can control the flushing mechanism to automatically flush or control the deodorizing mechanism to deodorize, thereby improving the comfort of toilet use.

[0064] In this example, by setting a magnet 3 at one end of the output shaft 2 of the damper, the rotational movement of the output shaft 2 of the damper can be converted into the rotational movement of the induced magnetic field of the magnet 3, so that the magnetic line sensor 9 in the identification device can detect the rotational position of the output shaft 2 by detecting the induced magnetic field, and can perform non-contact detection of the rotational position of the toilet cover and / or toilet cover ring, which is simple, easy and low-cost.

[0065] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A damper, characterized in that: including a housing, an output shaft and a magnet; The housing is used to be mounted on a first workpiece, the first end of the output shaft is assembled in the housing, and the second end of the output shaft extends out of the housing and is used to connect to a second workpiece; The magnet is mounted on the first end of the output shaft and rotates along with the output shaft to generate an induced magnetic field.

2. The damper according to claim 1, characterized in that The second end of the output shaft is provided with a groove; The magnet is fitted into the groove.

3. The damper according to claim 1, characterized in that The housing is provided with a damping fluid; the output shaft comprises a damping portion and a flat head output portion extending from one end of the damping portion; The damping part is arranged in the housing and is used to form a damping force between the damping fluid and the output shaft when the output shaft rotates; The flat head output portion is arranged outside the housing and is used for connecting to a second workpiece.

4. The damper according to claim 3, characterized in that The output shaft further includes a sealing portion provided between the damping portion and the flat head output portion; The outer diameter of the sealing portion is greater than the outer diameter of the flat head output portion; The housing comprises a shell and an end cover provided at one end of the shell; The end cover is provided with an opening, the flat head output portion is passed through the opening, and one side surface of the sealing portion abuts against one side surface of the end cover.

5. The damper according to claim 4, characterized in that The damper further includes a gasket; The gasket is sleeved outside the flat head output portion, one side of the gasket abuts against the sealing portion, and the other side of the gasket abuts against the end cover.

6. The damper according to claim 4, characterized in that The damper also includes a sealing ring; A sealing groove is provided on the outer side of the sealing portion along the circumferential direction; The sealing ring is arranged in the sealing groove, and the sealing ring abuts against the sealing groove and the housing.

7. The damper according to claim 3, characterized in that The damping part includes a shaft body and a scraper arranged outside the shaft body; The scraper includes a first contact surface and a second contact surface; The first contact surface is used to generate a damping force between the damping fluid and the shaft when the shaft rotates in a clockwise direction, and the second contact surface is used to generate a damping force between the damping fluid and the shaft when the shaft rotates in a counterclockwise direction. The damping forces generated between the first contact surface and the second contact surface and the damping fluid are different.

8. An identification device, characterized in that: comprising a magnetic line sensor, a controller and the damper according to any one of claims 1 to 7; The magnetic flux sensor is connected to the controller and is arranged opposite to the magnet in the damper, and is used to output a sensing signal to the controller according to the rotation action of the induced magnetic field; The controller is used to identify the rotational position of the output shaft of the damper according to the sensor signal.

9. The identification device according to claim 8, characterized in that The magnetic line sensor includes a Hall sensor.

10. A toilet seat, characterized in that: It comprises a fixing seat, a toilet cover plate, a toilet cover ring and at least one identification device according to any one of claims 8 to 9; The toilet cover plate and the toilet cover ring can be rotatably mounted on the toilet seat; The output shaft of the damper is connected to the toilet cover plate or the toilet cover ring, and the outer shell of the damper is connected to the fixing seat; The controller is used to identify the rotational position of the toilet cover and / or the toilet cover ring.

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