Knob structure and closestool

Abstract

The utility model provides a knob structure and a closestool, the knob structure comprises a screw cap, a seat body, a circuit board and an elastic piece, and the screw cap is provided with a magnetic piece; the screw cap is rotatably and axially movably connected with the seat body, the seat body is provided with an accommodating cavity, and the screw cap is provided with a trigger end extending into the accommodating cavity; the circuit board is arranged in the accommodating cavity, the circuit board is provided with a trigger piece, the trigger end triggers the trigger piece when the screw cap axially moves, the circuit board is further provided with one of induction pieces, magnetic pieces and induction pieces, and when the screw cap rotates, the induction pieces induct the positions of the magnetic pieces and judge the rotating state of the screw cap; the elastic piece abuts against the rotary cover and provides reset force for the rotary cover to rotate towards the preset initial position. According to the utility model, the problem of high cost of the knob structure in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of switches, and in particular to a knob structure and a toilet. Background Art

[0002] Current magnetic knobs require four magnets and two Hall sensors, and rely on pressing and rotating the knob to achieve the desired operation. This requires complex assembly processes and is costly. Furthermore, after rotating or pressing the knob, the attraction between the two pairs of magnets creates a restoring force. Due to the magnetism of the magnets, the knob tends to bounce back and forth around its center axis when reset, affecting the user's feel. Utility Model Content

[0003] The main purpose of the utility model is to provide a knob structure and a toilet, so as to solve the problem of high cost of the knob structure in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a knob structure is provided, including: a rotary cover, a base body, a circuit board and an elastic member, and a magnetic member is provided on the rotary cover; the rotary cover is rotatably and axially movably connected to the base body, the base body has a accommodating cavity, and the rotary cover has a trigger end extending into the accommodating cavity; the circuit board is arranged in the accommodating cavity, the circuit board has a trigger member, and the trigger end triggers the trigger member when the rotary cover moves axially, and the circuit board also has a sensing member, and one of the magnetic member and the sensing member is multiple, and when the rotary cover rotates, the sensing member senses the position of the magnetic member and determines the rotation state of the rotary cover; the elastic member abuts against the rotary cover and provides a reset force for the rotary cover to rotate to a predetermined initial position.

[0005] Furthermore, there is one magnetic part and two sensing parts, and the two sensing parts are arranged circumferentially along the rotation axis of the rotary cover. When the rotary cover drives the magnetic part to rotate within the sensing range of one sensing part, the knob structure is in a working state. When the rotary cover drives the magnetic part to rotate outside the sensing range of the two sensing parts, the rotary cover is in a predetermined initial position and the knob structure is in an idle state.

[0006] Furthermore, there are two magnetic parts and one inductive part, and the two magnetic parts are arranged circumferentially along the rotation axis of the rotary cover. When the rotary cover drives one magnetic part to rotate within the inductive range of the inductive part, the knob structure is in a working state. When the rotary cover drives both magnetic parts to rotate outside the inductive range of the inductive part, the rotary cover is in a predetermined initial position and the knob structure is in an idle state.

[0007] Furthermore, the polarities of the two magnetic members facing the inductive member are opposite.

[0008] Furthermore, the surface of the rotary cover facing the accommodating cavity has a convex column, a portion of the convex column extends into the accommodating cavity, the end of the convex column serves as a trigger end, and the elastic member is sleeved on the outer peripheral side of the convex column.

[0009] Furthermore, the boss includes a large diameter section and a small diameter section connected axially in sequence, the small diameter section has a trigger end and extends into the accommodating cavity, the large diameter section is located outside the accommodating cavity, and the elastic member is sleeved on the outside of the large diameter section.

[0010] Furthermore, the surface of the rotary cover facing the accommodating cavity also has an annular protrusion, which is located on the outer peripheral side of the large diameter section and forms a gap with the large diameter section. The elastic member is located in the gap, and the circumferential side of the annular protrusion has an opening portion, and the end of the elastic member abuts against the side wall of the opening portion.

[0011] Furthermore, the surface of the base body facing the rotary cover has a protruding extension section, the circumferential side surface of the extension section has a notch portion, and the end portion of the elastic member abuts against the side wall of the notch portion.

[0012] Furthermore, the knob structure also includes a seal, which is arranged in the base body. A sealing area is formed between a part of the side wall of the base body and the seal, and the circuit board is located in the sealing area.

[0013] According to another aspect of the present invention, a toilet is provided, comprising the above-mentioned knob structure.

[0014] By applying the technical solution of the present invention, by setting one of the magnetic parts and the inductive parts to be multiple and the other to be one, on the one hand, the number of magnetic parts or the number of inductive parts is reduced, or the number of magnetic parts and the number of inductive parts are reduced at the same time, thereby streamlining the knob structure, simplifying the assembly process, and further reducing the production cost of the knob structure. On the other hand, the elastic part replaces the traditional magnet to achieve the reset of the knob structure, so that the elastic force controls the reset of the knob structure, thereby avoiding the knob structure from rebounding back and forth repeatedly, and making the knob structure simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 An exploded view of the knob structure of the first embodiment of the present invention is shown;

[0017] Figure 2 A cross-sectional view of the knob structure of the first embodiment is shown;

[0018] Figure 3 A schematic structural diagram of a circuit board according to the first embodiment is shown;

[0019] Figure 4 Shown Figure 3 Side view of

[0020] Figure 5 A diagram showing the positional relationship between the magnetic member and the elastic member when the knob structure of the first embodiment is in an idle state;

[0021] Figure 6 A diagram showing the positional relationship between the magnetic component and the inductive component when the knob structure of the first embodiment is in an idle state is shown;

[0022] Figure 7 A diagram showing the positional relationship between the magnetic component and the elastic component when the knob structure of the first embodiment is in a working state;

[0023] Figure 8 A diagram showing the positional relationship between the magnetic component and the inductive component when the knob structure of the first embodiment is in a working state;

[0024] Figure 9 The following is a logic diagram showing the working process of the knob structure of the first embodiment;

[0025] Figure 10 An exploded view of the knob structure of the second embodiment is shown;

[0026] Figure 11 A cross-sectional view of the knob structure of the second embodiment is shown;

[0027] Figure 12 A schematic structural diagram of a circuit board according to a second embodiment is shown;

[0028] Figure 13 Shown Figure 12 Side view of

[0029] Figure 14 A diagram showing the positional relationship between the magnetic member and the elastic member when the knob structure of the second embodiment is in an idle state;

[0030] Figure 15 A diagram showing the positional relationship between the magnetic component and the inductive component when the knob structure of the second embodiment is in an idle state;

[0031] Figure 16 A diagram showing the positional relationship between the magnetic component and the elastic component when the knob structure of the second embodiment is in a working state;

[0032] Figure 17 A diagram showing the positional relationship between the magnetic component and the inductive component when the knob structure of the second embodiment is in a working state;

[0033] Figure 18 The following is a logic diagram showing the working process of the knob structure of the second embodiment;

[0034] Figure 19 Shown are schematic structural diagrams of elastic members according to Embodiment 1 and Embodiment 2;

[0035] Figure 20 Shown Figure 19 Side view of

[0036] Figure 21 A schematic diagram showing another structure of the elastic member of the first and second embodiments;

[0037] Figure 22 Shown Figure 21 Side view of

[0038] Figure 23 A schematic diagram showing another structure of the elastic member of the first and second embodiments;

[0039] Figure 24 Shown Figure 23 side view.

[0040] The above drawings include the following reference numerals:

[0041] 10. Screw cap; 11. Boss; 111. Large diameter section; 112. Small diameter section; 113. Trigger end; 12. Magnetic member; 13. Annular protrusion; 131. Opening; 20. Base; 21. Extended section; 211. Notch; 30. Circuit board; 31. Inductive member; 32. Trigger member; 40. Elastic member; 50. Sealing member. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0044] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0045] In order to solve the problem of high cost of the knob structure in the prior art, the utility model provides a knob structure and a toilet, wherein the toilet includes the following knob structure.

[0046] Example 1

[0047] like Figures 1 to 9The knob structure shown includes: a rotary cover 10, a base 20, a circuit board 30 and an elastic member 40, wherein a magnetic member 12 is provided on the rotary cover 10; the rotary cover 10 is rotatably and axially movably connected to the base 20, the base 20 has a receiving cavity, and the rotary cover 10 has a trigger end 113 extending into the receiving cavity; the circuit board 30 is arranged in the receiving cavity, the circuit board 30 has a trigger member 32, and the trigger end 113 triggers the trigger member 32 when the rotary cover 10 moves axially. The circuit board 30 also has a sensing member 31, and one of the magnetic member 12 and the sensing member 31 is multiple. When the rotary cover 10 rotates, the sensing member 31 senses the position of the magnetic member 12 and determines the rotation state of the rotary cover 10; the elastic member 40 abuts against the rotary cover 10 and provides a reset force for the rotary cover 10 to rotate to a predetermined initial position.

[0048] This embodiment provides one of the magnetic parts 12 and the inductive part 31 with multiple parts and the other with one part, thereby reducing the number of magnetic parts 12 or the number of inductive parts 31, or reducing the number of magnetic parts 12 and the number of inductive parts 31 at the same time, thereby streamlining the knob structure, simplifying the assembly process, and further reducing the production cost of the knob structure. On the other hand, the elastic part 40 replaces the traditional magnet to achieve the reset of the knob structure, so that the elastic force controls the reset of the knob structure, thereby avoiding the knob structure from rebounding back and forth repeatedly, and making the knob structure simpler.

[0049] like Figure 1 As shown, in this embodiment, there is one magnetic member 12 and two inductive members 31, and the two inductive members 31 are arranged circumferentially along the rotation axis of the rotary cover 10. When the rotary cover 10 drives the magnetic member 12 to rotate within the inductive range of one inductive member 31, the knob structure is in a working state. When the rotary cover 10 drives the magnetic member 12 to rotate outside the inductive range of the two inductive members 31, the rotary cover 10 is in a predetermined initial position and the knob structure is in an idle state. In this way, by rotating the rotary cover 10, the magnetic member 12 is driven to rotate, thereby changing the relative position between the magnetic member 12 and the inductive member 31, so that the knob structure switches between the working state and the idle state. Specifically, as Figure 8 As shown, the sensing element 31 and the magnetic element 12 of this embodiment are both arranged in the circumferential direction of the rotation axis of the rotary cover 10. The distance between the magnetic element 12 and the rotation axis of the rotary cover 10 is greater than that between the sensing element 31 and the magnetic element 12. In other words, with a point on the rotation axis of the rotary cover 10 as the center, the circumference of the magnetic element 12 is located outside the circumference of the sensing element 31. Figure 6 As shown, when the rotary cover 10 is in a predetermined initial position, the projections of the two sensing members 31 on a plane perpendicular to the rotation axis of the rotary cover 10 are symmetrically distributed on both sides of the magnetic member 12. When the rotary cover 10 rotates clockwise, it drives the magnetic member 12 to move together, as shown in FIG. Figure 7As shown, the magnetic member 12 enters the sensing range of one of the sensing members 31, the knob structure enters the working state, the elastic member 40 is compressed, and after the hand is released, the knob structure automatically resets under the elastic force of the elastic member 40, and the rotary cover 10 returns to the predetermined initial position; when the rotary cover 10 rotates counterclockwise, it drives the magnetic member 12 to rotate and causes the magnetic member 12 to enter the sensing range of the other sensing member 31, the knob structure enters the working state, the elastic member 40 is compressed, and after the hand is released, the knob structure automatically resets under the elastic force of the elastic member 40, and the rotary cover 10 returns to the predetermined initial position. Optionally, the magnetic member 12 can be a magnet, which is fixed to the rotary cover 10, and can be fixed by direct press-fit, gluing, or other fixing methods. The sensor 31 can use a Hall effect device.

[0050] It should be noted that the knob structure of this embodiment can not only detect the rotation of the rotary cover 10, but also detect the rotation direction of the rotary cover 10. The two Hall devices are connected to different detection pins of the detection chip. If one of the Hall devices detects an electrical signal, it is determined that the rotary cover 10 has rotated to position one. If the other Hall device detects an electrical signal, it is determined that the rotary cover 10 has rotated to position two. According to the structural limit, the rotation direction of the rotary cover 10 is determined at the software layer, thereby realizing the corresponding logical application.

[0051] like Figure 2 As shown, in this embodiment, the surface of the rotary cap 10 facing the accommodating cavity includes a boss 11. A portion of the boss 11 extends into the accommodating cavity, and the end of the boss 11 serves as a trigger end 113. The elastic member 40 is sleeved around the outer circumference of the boss 11. Specifically, the rotary cap 10 of this embodiment is integrally formed and cylindrical in shape, comprising a circular top plate and a cylindrical circumferential side surface. The interior of the rotary cap 10 is hollow. The boss 11 is located at the center of the rotary cap 10, and the trigger member 32 is located at the center of the top plate and axially aligned with the boss 11. The boss 11 and the circumferential side surface are located on the same side of the top plate. The boss 11 extends along the rotation axis of the rotary cap 10, and the end away from the top plate serves as the trigger end 113, which cooperates with the trigger member 32. The outer circumference of the boss 11 provides space for the elastic member 40 to be installed, so that one axial end of the elastic member 40 abuts the top plate and the other axial end abuts the base 20. Optionally, the elastic member 40 of this embodiment is a spring. Of course, the rotary cover 10 can also be configured to be composed of multiple parts. For example, the outer circumference, top plate, boss 11 and other parts of the rotary cover 10 can be removed as independent components and connected to other parts of the rotary cover 10.

[0052] In this embodiment, the boss 11 includes a large-diameter section 111 and a small-diameter section 112, which are axially connected in sequence. The small-diameter section 112 has a trigger end 113 and extends into the accommodating cavity. The large-diameter section 111 is located outside the accommodating cavity, and the elastic member 40 is sleeved outside the large-diameter section 111. Specifically, the end of the large-diameter section 111 of the boss 11, which is remote from the small-diameter section 112, is connected to the top plate of the rotary cover 10, while the end of the small-diameter section 112, which is remote from the large-diameter section 111, serves as the trigger end 113. This allows the rotary cover 10 to not only drive the elastic member 40 to rotate, but also to abut and engage with the trigger member 32.

[0053] In this embodiment, the surface of the rotary cover 10 facing the accommodating cavity further has an annular protrusion 13. The annular protrusion 13 is located on the outer peripheral side of the large diameter section 111 and forms a gap with the large diameter section 111. The elastic member 40 is located in the gap. That is to say, the annular protrusion 13 of this embodiment, the boss 11 of the rotary cover 10, and the circumferential side surface of the rotary cover 10 are arranged on the same side of the top plate of the rotary cover 10. In this way, an annular gap is formed between the annular protrusion 13 and the boss 11 for accommodating the elastic member 40. The annular protrusion 13 of this embodiment is not a complete ring. The circumferential side surface of the annular protrusion 13 has an opening 131. The end of the elastic member 40 abuts against the side wall of the opening 131, so that the rotary cover 10 can drive the elastic member 40 to rotate when it rotates. In this embodiment, the end of the elastic member 40 refers to the starting end and the end end of the torsion spring, that is, the two ends of the torsion spring extending circumferentially. The two ends of the torsion spring respectively abut against the two side walls of the opening 131 , thereby limiting the two ends of the torsion spring in the opening 131 , so that the torsion spring can rotate with the rotation of the rotary cover 10 .

[0054] The base body 20 of this embodiment is formed by axially connecting multiple cylindrical structures of varying diameters, including a stepped annular surface and a circular rear cover. The base body 20 is hollow, allowing the boss 11 of the rotary cover 10 to be inserted into the base body 20. The end of the base body 20 closest to the rotary cover 10 has a smaller diameter, allowing the base body 20 to extend into the annular protrusion 13 of the rotary cover 10, thereby preventing the torsion spring from dislodging from the annular protrusion 13 and improving the stability of the knob structure. The end closest to the circuit board 30 has a diameter identical to the outer diameter of the rotary cover 10, allowing the circuit board 30 to be positioned within the base body 20. This allows the smaller diameter portion of the base body 20 to extend into the inner periphery of the rotary cover 10, giving the knob structure an overall cylindrical shape.

[0055] In this embodiment, the surface of the base 20 facing the rotary cover 10 has a protruding extension section 21, and the circumferential side surface of the extension section 21 has a notch portion 211. The end of the elastic member 40 abuts against the side wall of the notch portion 211, so that when the rotary cover 10 rotates, it drives the torsion spring to rotate, so that the torsion spring provides a reset force for the rotary cover 10 to return to the predetermined initial position. Specifically, the extension section 21 is located at one end of the base 20 close to the top plate of the rotary cover 10. The inner diameter of the extension section 21 is set to be slightly larger than the outer diameter of the annular protrusion 13, so that the annular protrusion 13 and the elastic member 40 can simultaneously extend into the extension section 21. In this way, when the rotary cover 10 is in the predetermined initial position, as shown in FIG. Figure 5 As shown, the notch 211 and the opening 131 are aligned along the circumference of the rotary cover 10, and the two ends of the torsion spring are respectively in contact with the two side walls of the notch 211 and the opening 131. The two ends of the torsion spring do not deform. When the rotary cover 10 rotates in a clockwise or counterclockwise direction, the torsion spring and the opening 131 rotate with the rotary cover 10, and the position of the notch 211 remains unchanged, so that Figure 7 The positions of the opening portion 131 and the notch portion 211 are staggered, so that one end of the torsion spring is compressed and deformed by the reaction force of the extension section 21, and the other end of the torsion spring is compressed and deformed by the rotational force of the annular protrusion 13, so that the torsion spring can provide a reset force for the rotary cover 10 to return to the predetermined initial position, thereby realizing automatic reset of the rotary cover 10.

[0056] like Figures 19 to 24 As shown, the shape and cross-section of the elastic member 40 can be adjusted according to actual requirements. Figure 19 、 Figure 20 As shown, the spring is configured as a torsion spring structure, which is configured in a spiral shape, and the two ends are configured in a bent shape, which can make the stress on the spring ends more uniform and save space; Figure 21 、 Figure 22 As shown, the spring is also configured as a torsion spring structure, which is spiral and has two straight ends, making the installation of the spring easier; Figure 23 、 Figure 24 As shown, the spring may be configured not in a spiral shape but in a symmetrically bent shape, with two ends extending from both sides and abutting the side walls of the notch 211. This configuration can save costs. Of course, the elastic member 40 may also be configured in other structural forms, so long as it abuts the side of the notch 211 to provide a restoring force for the rotary cover 10 to return to the predetermined initial position.

[0057] In this embodiment, the knob structure further includes a seal 50, which is disposed within the base 20. A sealed area is formed between a portion of the sidewall of the base 20 and the seal 50. The circuit board 30 is located within the sealed area, thereby protecting the circuit board 30 and preventing water and dust from entering the circuit board 30, thereby extending the service life of the knob structure. The seal 50 of this embodiment is configured to have an outer shape similar to that of the base 20 and is capable of extending into the interior of the base 20, thereby sealing the circuit board 30 within the sealed area formed by the rear cover of the base 20 and the seal 50. Figure 1 As shown, the circuit board 30 and the rear cover of the base 20 of this embodiment are fixed by screws. Of course, other fixing methods such as buckles can also be selected.

[0058] For the sake of convenience, the two Hall devices in this embodiment are referred to as a first Hall device and a second Hall device.

[0059] like Figure 9 As shown, the working process of the knob structure of this embodiment is as follows: first, the system is initialized and the system enters the standby state, and then the system input level change is detected. 1. If the first Hall device is detected to have a level change, it is determined whether the level change meets the threshold change requirement. If not, the system input level change is continuously detected. If the level change is debounced and reaches the set level, it is determined that the rotary cover 10 is rotating toward one side, and then the setting logic 1 is activated. A flag is set to wait for the rotary cover 10 to be released and returned to its original position. After the release, the setting flag is cleared, and the current rotation of the rotary cover 10 is terminated, and the system returns to the standby state. 2. If the second Hall device is detected to have a level change, it is determined whether the level change meets the threshold change requirement. If not, the system input level change is continuously detected. If the level change is debounced and reaches the set level, it is determined that the rotary cover 10 is rotating toward the other side, and then the setting logic 2 is activated. A flag is set to wait for the rotary cover 10 to be released and returned to its original position. After the release, the setting flag is cleared, and the current rotation of the rotary cover 10 is terminated, and the system returns to the standby state.

[0060] Example 2

[0061] The difference from the first embodiment is that the number of magnetic parts 12 and induction parts 31 is different. In the first embodiment, there is one magnetic part 12 and two induction parts 31. In this embodiment, there are two magnetic parts 12 and one induction part 31.

[0062] like Figures 10 to 18As shown, in this embodiment, there are two magnetic parts 12 and one induction part 31. The two magnetic parts 12 are arranged circumferentially along the rotation axis of the rotary cover 10. When the rotary cover 10 drives one magnetic part 12 to rotate to within the induction range of the induction part 31, the knob structure is in a working state. When the rotary cover 10 drives both magnetic parts 12 to rotate outside the induction range of the induction part 31, the rotary cover 10 is in a predetermined initial position and the knob structure is in an idle state. In this way, by rotating the rotary cover 10 to drive the magnetic part 12 to rotate, the relative position between the magnetic part 12 and the induction part 31 is changed, so that the knob structure switches between the working state and the idle state. Specifically, as Figure 14 、 Figure 15 As shown, in this embodiment, the two magnetic members 12 are arranged circumferentially along the rotation axis of the rotary cover 10, and the sensing member 31 is also arranged on the circumferential side of the rotation axis of the rotary cover 10. The distance between the magnetic members 12 and the rotation axis of the rotary cover 10 is greater than that between the sensing member 31. In other words, with a point on the rotation axis of the rotary cover 10 as the center, the circumference of the two magnetic members 12 is located outside the circumference of the sensing member 31. When the rotary cover 10 is in a predetermined initial position, the projections of the two magnetic members 12 on a plane perpendicular to the rotation axis of the rotary cover 10 are symmetrically distributed on both sides of the sensing member 31. Figure 16 、 Figure 17 As shown, when the rotary cover 10 rotates clockwise, it drives the magnetic part 12 to move together, and makes one of the two magnetic parts 12 enter the sensing range of the sensing part 31, the knob structure enters the working state, the elastic part 40 is compressed, and after releasing the hand, the knob structure automatically resets under the elastic force of the elastic part 40, and the rotary cover 10 returns to the predetermined initial position; when the rotary cover 10 rotates counterclockwise, it drives the magnetic part 12 to rotate, and makes the other of the two magnetic parts 12 enter the sensing range of the sensing part 31, the knob structure enters the working state, the elastic part 40 is compressed, and after releasing the hand, the knob structure automatically resets under the elastic force of the elastic part 40, and the rotary cover 10 returns to the predetermined initial position.

[0063] In this embodiment, the polarity of the two magnetic members 12 facing the sensing member 31 is opposite. This allows the sensing member 31 to identify different magnetic members 12 when the rotary cover 10 drives the magnetic members 12 to rotate in different directions, thereby determining the rotation direction of the rotary cover 10 based on the state of the sensing member 31. Specifically, in this embodiment, the magnetic members 12 are magnets, and the sensing member 31 is a Hall effect device. The distance between the two magnets and the rotation axis of the rotary cover 10 is greater than the distance between the Hall effect device and the rotation axis of the rotary cover 10. As a result, the two magnets are positioned outside the Hall effect device. When the rotary cover 10 drives the magnets to rotate until the knob structure enters the operating state, the side of the magnet facing the rotation axis of the rotary cover 10 is closer to the side of the Hall effect device away from the rotation axis of the rotary cover 10. The polarity of the two magnets facing the rotation axis of the rotary cover 10 is opposite. In this way, the Hall effect device generates different electrical signals in the north and south pole directions according to the polarity of the magnets. The two magnets are placed in different directions, one for south pole sensing and one for north pole sensing, thereby enabling the Hall effect device to identify the two different magnets. When the Hall device is in a predetermined initial position and not near the magnets on either side, the Hall device detection level is an intermediate electrical signal, between high and low. When it approaches a magnet on one side, it exhibits a high level, while when it approaches a magnet on the other side, it exhibits a low level. ADC detection is used to identify the rotation direction of the rotary cap 10, achieving the corresponding logic effect. ADC refers to a digital-to-analog converter, which converts analog signals into digital signals.

[0064] For the sake of convenience, the two magnets in this embodiment are referred to as a first magnet and a second magnet.

[0065] like Figure 18 As shown, the working process of the knob structure of this embodiment is as follows: first, the system is initialized and enters the standby state, and then the ADC value of the Hall device is detected, wherein the intermediate state is a normal value, which is at an intermediate voltage. 1. If the ADC value shows an upward trend, de-jitter and determine whether the threshold change requirement is met. If the threshold change requirement is not met, continue to detect the ADC value of the Hall device. If the threshold change requirement is met and the value reaches more than 85% of the high voltage from the intermediate state, it can be determined that the rotary cover 10 is rotating toward the first magnet, and then the first magnet setting logic is started, a flag is set to wait for the rotary cover 10 to be released and returned to its position, and the setting flag is cleared after the rotary cover 10 returns to its position, and then the rotation of the rotary cover 10 is ended and the state returns to the standby state; 2. If the ADC value shows a downward trend, de-jitter and determine whether the threshold change requirement is met. If the threshold change requirement is not met, continue to detect the ADC value of the Hall device. If the threshold change requirement is met and the value reaches less than 5% of the high voltage from the intermediate state, it can be determined that the rotary cover 10 is rotating toward the second magnet, and then the second magnet setting logic is started, a flag is set to wait for the rotary cover 10 to be released and returned to its position, and the setting flag is cleared after the rotary cover 10 returns to its position, and then the rotation of the rotary cover 10 is ended and the state returns to the standby state.

[0066] It should be noted that, in the above embodiments, a plurality refers to at least two.

[0067] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0068] 1. Solve the problem of high cost of knob structure in the prior art;

[0069] 2. The number of magnetic components or the number of inductive components is reduced, or the number of both magnetic components and inductive components is reduced, thereby streamlining the knob structure, simplifying the assembly process, and thus reducing the production cost of the knob structure;

[0070] 3. The elastic member replaces the traditional magnet to realize the reset of the knob structure, so that the elastic force controls the reset of the knob structure, thereby preventing the knob structure from rebounding back and forth repeatedly, and making the knob structure simpler.

[0071] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0072] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0073] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0074] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A knob structure, characterized in that: include: A rotary cover (10), wherein a magnetic member (12) is provided on the rotary cover (10); A base body (20), the rotary cover (10) is rotatably and axially movably connected to the base body (20), the base body (20) has a receiving cavity, and the rotary cover (10) has a trigger end (113) extending into the receiving cavity; A circuit board (30), the circuit board (30) being arranged in the accommodating cavity, the circuit board (30) having a triggering member (32), the triggering end (113) triggering the triggering member (32) when the rotary cover (10) moves axially, the circuit board (30) further having a sensing member (31), one of the magnetic member (12) and the sensing member (31) being plural, and the sensing member (31) sensing the position of the magnetic member (12) and judging the rotation state of the rotary cover (10) when the rotary cover (10) rotates; An elastic member (40) is in contact with the rotary cover (10) and provides a restoring force for the rotary cover (10) to rotate toward a predetermined initial position.

2. The knob structure according to claim 1, characterized in that: There is one magnetic member (12) and two sensing members (31). The two sensing members (31) are circumferentially arranged along the rotation axis of the rotary cover (10). When the rotary cover (10) drives the magnetic member (12) to rotate within the sensing range of one sensing member (31), the knob structure is in a working state. When the rotary cover (10) drives the magnetic member (12) to rotate outside the sensing range of the two sensing members (31), the rotary cover (10) is in the predetermined initial position and the knob structure is in an idle state.

3. The knob structure according to claim 1, characterized in that: There are two magnetic members (12) and one induction member (31). The two magnetic members (12) are circumferentially arranged along the rotation axis of the rotary cover (10). When the rotary cover (10) drives one magnetic member (12) to rotate into the induction range of the induction member (31), the knob structure is in a working state. When the rotary cover (10) drives both magnetic members (12) to rotate out of the induction range of the induction member (31), the rotary cover (10) is in the predetermined initial position and the knob structure is in an idle state.

4. The knob structure according to claim 3, characterized in that: The polarities of the two magnetic members (12) facing the induction member (31) are opposite.

5. The knob structure according to claim 1, characterized in that: The surface of the rotary cover (10) facing the accommodating cavity has a convex column (11), a portion of the convex column (11) extends into the accommodating cavity, the end of the convex column (11) serves as the trigger end (113), and the elastic member (40) is sleeved on the outer peripheral side of the convex column (11).

6. The knob structure according to claim 5, characterized in that: The boss (11) comprises a large diameter section (111) and a small diameter section (112) connected in axial sequence, the small diameter section (112) having the trigger end (113) and extending into the accommodating cavity, the large diameter section (111) being located outside the accommodating cavity, and the elastic member (40) being sleeved on the outside of the large diameter section (111).

7. The knob structure according to claim 6, characterized in that: The surface of the rotary cover (10) facing the accommodating cavity further comprises an annular protrusion (13), the annular protrusion (13) being located on the outer peripheral side of the large-diameter section (111) and forming a gap with the large-diameter section (111), the elastic member (40) being located in the gap, the circumferential side surface of the annular protrusion (13) comprising an opening portion (131), and the end portion of the elastic member (40) being in contact with the side wall of the opening portion (131).

8. The knob structure according to claim 5, characterized in that: The surface of the base (20) facing the rotary cover (10) has a protruding extension section (21), the circumferential side surface of the extension section (21) has a notch portion (211), and the end of the elastic member (40) abuts against the side wall of the notch portion (211).

9. The knob structure according to claim 1, characterized in that: The knob structure further comprises a sealing member (50), wherein the sealing member (50) is arranged in the seat body (20), a sealing area is formed between a part of the side wall of the seat body (20) and the sealing member (50), and the circuit board (30) is located in the sealing area.

10. A toilet, characterized in that: The knob structure comprises the knob structure according to any one of claims 1 to 9.

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