CN216389154U - Switching device and sanitary equipment - Google Patents

Abstract

The utility model relates to the technical field of bathrooms and discloses a switching device and a bathroom device. The switch device is used for sanitary equipment and comprises a knob switch assembly and a knob cap assembly, wherein the knob switch assembly comprises a knob handle and a return spring. The return spring is used for providing return torque for the knob handle; the knob cap assembly is mounted on the knob handle and is used for receiving external force to drive the knob handle to rotate. When the knob handle is reset by the reset torque, the knob cap assembly is driven by the knob handle to reset. The weight of the knob cap assembly is matched with the reset torque of the reset spring so as to prevent the shaking of the knob cap assembly after the knob cap assembly is reset by the reset torque. Through the arrangement, the switch device provided by the utility model has the advantages that the reset torque generated by the reset spring can drive the knob handle and the knob cap assembly to rotate and return to the original position, and the knob cap assembly is not generated with larger momentum, so that the jitter of the knob cap assembly after being reset by the reset torque can be reduced or even eliminated.

Description

Switching device and sanitary equipment

Technical Field

The embodiment of the utility model relates to the technical field of bathrooms, in particular to a switching device and a bathroom device with the switching device.

Background

In the sanitary industry, various inductive switches are required to trigger the operation of sanitary equipment (such as a flip cover, a flip ring, a flush, etc.) such as a smart toilet. The existing inductive switch mainly comprises a mechanical switch, a touch switch, a voice-operated switch, human body infrared induction and the like.

A mechanical switch adopted by an intelligent closestool on the market at present is a knob switch. The knob switch can adopt an encoder scheme, so that the knob can rotate 360 degrees and can stay at any angle. However, with this solution, since the knob switch can stay at any position of 360 degrees, it is generally applicable to a circular knob; that is, if the knob is designed with a non-circular configuration, it will create an unsightly look when it is left in, for example, an inclined position.

In addition, the knob switch can also be a self-reset switch, and a torsion spring can be arranged on the outer side of the knob to drive the knob to reset. However, such a solution has the following disadvantages. Firstly, the torsion spring is arranged on the outer side, so that the knob switch occupies a large space; secondly, because the torsional spring is usually set to have great moment of torsion, therefore the shake of knob self in the reset process is more obvious, and user experience is not good.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the embodiment of the utility model is to provide a switch device capable of reducing jitter generated when a knob is reset and bathroom equipment adopting the switch device.

In order to solve the above technical problem, one technical solution adopted by the embodiment of the present invention is: in one aspect, there is provided a switching apparatus for a sanitary ware, and including: the knob switch assembly comprises a knob handle and a return spring, and the return spring is used for providing return torque for the knob handle; the knob cap assembly is arranged on the knob handle and is used for receiving external force to drive the knob handle to rotate; and, when the knob handle is reset by the reset torque, the knob cap assembly is reset by being carried by the knob handle. The weight of the knob cap assembly is matched with the reset torque of the reset spring so as to prevent the knob cap assembly from shaking after being reset by the reset torque.

In some embodiments, a ratio of the return torque of the return spring to the weight of the knob cap assembly is 5gf.cm/g to 3 gf.cm/g.

In some embodiments, the knob cap assembly comprises a knob cap for receiving an external force and a light guide for receiving light from the knob switch assembly; the light guide piece is installed on one side, far away from the knob switch assembly, of the knob cap and comprises a receiving sleeve, and the knob handle is inserted into the receiving sleeve to be matched with the receiving sleeve.

In some embodiments, the side wall of the receiving sleeve is provided with at least one axial through groove, and a fastening spring is sleeved outside the side wall of the receiving sleeve and used for increasing the clamping force of the receiving sleeve on the knob handle.

In some embodiments, the light guide includes a light receiving surface facing the rotary switch assembly, and the light receiving surface has a plurality of light guide structures disposed thereon.

In some embodiments, the knob cap assembly further comprises a knob cap trim plate mounted outside the light guide.

In some embodiments, the knob switch assembly includes a reset switch including the knob shank and the return spring, and further including a knob body, a detent shaft, and a detent tab. The knob body is provided with a braking rib, and the braking shaft is provided with a first limiting part and a second limiting part; the brake shaft is sleeved on the knob handle in a circumferential fixed mode, and the knob handle and the brake shaft are inserted in the knob body, so that the first limiting portion and the second limiting portion of the brake shaft are matched with the brake rib to limit the rotation range of the knob handle. The knob body is provided with an accommodating groove, and the accommodating groove is provided with a third limiting part and a fourth limiting part; the reset spring is positioned in the accommodating groove and is provided with a first free end and a second free end, the first free end can abut against the third limiting part, and the second free end can abut against the fourth limiting part; the brake piece is sleeved on the knob handle in a circumferential fixed mode and is provided with a fifth limiting part and a sixth limiting part; the brake block is located in the accommodating groove, and one of the fifth limiting part and the sixth limiting part is used for driving one of the first free end and the second free end to move, so that the return spring is elastically deformed.

In some embodiments, the rotary switch assembly includes a front housing, a rear housing, a circuit board, and a reset switch; the reset switch comprises the knob handle and the reset spring, and is combined with the circuit board so as to change the conduction state with the circuit board according to the rotation of the knob handle; the front shell is hermetically connected with the rear shell so as to seal the circuit board and the main body part of the reset switch in the front shell, and only the matching end of the knob handle extends out so as to be matched and installed with the knob cap assembly through the matching end.

In some embodiments, the mating end of the knob stem extends through the front housing with a sealing ring disposed between the knob stem and the front housing.

In some embodiments, at least one light source is disposed on the circuit board, and the front housing includes a light guide portion for guiding light emitted from the light source to the knob cap assembly.

In some embodiments, the rear housing includes at least one connection portion for securing to the sanitary fixture via the connection portion.

In some embodiments, the knob cap assembly has a profiled shape in cross-section.

In another aspect, an embodiment of the present invention further provides a bathroom equipment, including: a bathroom main body; a switching device according to any one of the above. Wherein the switching device is installed on the sanitary ware main body.

In some embodiments, the sanitary equipment is a smart toilet, and the switching device is mounted on a toilet lid of the smart toilet.

Compared with the prior art, in the switch device provided by the embodiment of the utility model, the weight of the knob cap assembly is matched with the reset torque of the reset spring, so that the reset torque generated by the reset spring can drive the knob handle and the knob cap assembly to rotate and return to the original position, and larger momentum is not generated to the knob cap assembly, and thus the jitter of the knob cap assembly after being reset by the reset torque can be reduced or even eliminated.

Drawings

One or more embodiments are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which elements having the same reference numeral designations represent like elements and in which the figures are not to scale unless specifically stated.

Fig. 1 is a schematic perspective assembly view of a switch device according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the switch device of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the switchgear of FIG. 1;

FIG. 4 is a perspective schematic view of a reset switch of the rotary switch assembly in the switch device of FIG. 2;

FIG. 5 is an exploded perspective view of the reset switch of FIG. 4;

FIG. 6 is another exploded perspective view of the reset switch of FIG. 4;

fig. 7 is a partial perspective view of a sanitary device according to an embodiment of the present invention, wherein an installation manner of the switch device and the sanitary device is shown.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and specific examples. It is noted that when an element is referred to as being "secured to"/"mounted to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used in this specification, the terms "upper," "lower," "inner," "outer," "vertical," "horizontal," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the utility model and simplicity in description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and are not to be considered limiting of the utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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

Furthermore, the technical features mentioned in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

Fig. 1 to fig. 3 are a schematic perspective assembly view, a schematic perspective exploded view, and a schematic cross-sectional view of a switch device 100 according to an embodiment of the present invention. The switching device 100 provided by the embodiment of the utility model can be applied to sanitary equipment such as an intelligent closestool; that is, the switching device 100 may be installed in a sanitary fixture for controlling operations such as a flip cover, a flip ring, a flush, etc. of a smart toilet. The switch device 100 may generally include a rotary switch assembly 10 and a rotary cap assembly 20. The knob switch assembly 10 is used for turning on or off a circuit through rotation of a rotating member, thereby controlling the operation of the sanitary ware. The knob cap assembly 20 is used to couple with a rotating member of the knob switch assembly 10, and is used to facilitate the user to rotate the rotating member of the knob switch assembly 10 by means of the rotation of the knob cap assembly 20.

Specifically, referring to fig. 2 to 6, fig. 4 is a perspective view of the reset switch 11 of the knob switch assembly 10 in the switch device 100 of fig. 2, fig. 5 is a perspective exploded view of the reset switch 11 of fig. 4, and fig. 6 is another perspective exploded view of the reset switch 11 of fig. 4. The reset switch 11 of the rotary switch assembly 10 includes a knob handle 12 and a reset spring 13, and the reset spring 13 is used for providing a reset torque to the knob handle 12. The knob handle 12 serves as a rotating member in the knob switch assembly 10, and is rotated by a force, so as to change the on/off state of the circuit in the knob switch assembly 10. The knob handle 12 may be in the shape of a shaft. The return spring 13 may have a shape stable in a natural state, and may be elastically deformed by a force and have a characteristic of restoring to the stable shape; therefore, when the knob handle 12 rotates from the original position to a certain position, the return spring 13 can be driven to deform, so as to generate a return torque, and the return torque is transmitted to the knob handle 12 to urge the knob handle 12 to rotate back to the original position.

The knob cap assembly 20 is mounted on the knob shaft 12 for receiving an external force to rotate the knob shaft 12. For example, the user may manually rotate the knob cap assembly 20 such that the knob stem 12 is rotated in unison by the knob cap assembly 20. After the external force is removed, the return torque of the return spring 13 may cause the knob stem 12 and the knob cap assembly 20 to rotate back to the original position; that is, when the reset torque resets the knob stem 12, the knob cap assembly 20 is moved together with the knob stem 12 to be reset.

Wherein, the weight of the knob cap assembly 20 matches with the reset torque of the reset spring 13, so as to prevent the shaking of the knob cap assembly 20 after being reset by the reset torque.

It will be readily appreciated that when the return torque generated by the return spring 13 is small, it may be difficult to rotate the knob stem 12 and the knob cap assembly 20 back to the original positions; when the reset torque generated by the reset spring 13 is large, the speed of driving the knob handle 12 and the knob cap assembly 20 to rotate and return to the original position is high, so that the knob cap assembly 20 is easy to generate large momentum, and the knob cap assembly 20 can be stabilized at the original position after repeatedly swinging on two sides of the original position for many times; this gives the user the impression of a jerky reset of knob cap assembly 20, making the user experience poor.

In this embodiment of the present application, by matching the weight of the knob cap assembly 20 with the reset torque of the reset spring 13, the reset torque generated by the reset spring 13 can drive the knob stem 12 and the knob cap assembly 20 to rotate back to the original position without generating a large momentum to the knob cap assembly 20, so that the jitter of the knob cap assembly 20 after being reset by the reset torque can be reduced or even eliminated.

In some embodiments, a ratio of the return torque of the return spring 13 to the weight of the knob cap assembly 20 is 8gf.cm/g to 2 gf.cm/g. For example, the return torque of the return spring 13 may be about 250gf.cm (gram force cm), and may range from 400gf.cm to 100 gf.cm; the weight of the knob cap assembly 20 may be selected to be about 60g to 40 g, and may be fixed to 50 g. It is easily understood that one of the return torque of the return spring 13 and the weight of the knob cap assembly 20 may be set to a fixed value and then the other value may be adjusted to obtain a better anti-rattling effect.

In some embodiments, as shown in fig. 1 to 3, the knob cap assembly 20 includes a knob cap 21 and a light guide 22, the knob cap 21 is used for receiving an external force, and the light guide 22 is used for receiving light emitted from a light source installed in the knob switch assembly 10; the light guide 22 is installed on one side of the knob cap 21 far away from the knob switch assembly 10, the light guide 22 includes a receiving sleeve 23, and the knob handle 12 is inserted and matched with the receiving sleeve 23. The knob cap 21 is generally configured to have a larger cross-sectional size than the knob handle 12 so that the user can easily carry the knob handle 12 along with the knob cap 21 for selection. The light guide 22 is used to provide an illuminated cue to the user. The end of the knob stem 12 may have a non-circular cross-section for insertion mounting with a receiving sleeve 23 having a corresponding cross-sectional shape. The receiving sleeve 23 may be configured to form a tight fit with the end of the knob handle 12 to prevent the knob cap assembly 20 from falling out of the knob switch assembly 10.

In some embodiments, as shown in fig. 2 to 3, the side wall 24 of the receiving sleeve 23 is provided with at least one axial through groove 25, and the side wall 24 of the receiving sleeve 23 is externally sleeved with a fastening spring 26, wherein the fastening spring 26 is used for increasing the clamping force of the receiving sleeve 23 on the knob stem 12. The receiving sleeve 23 is surrounded by a side wall 24 to form a space for accommodating the end of the knob handle 12, and the side wall 24 is provided with one or two axial through grooves 25, so that the side wall 24 has appropriate elasticity to be easily matched with the knob handle 12. The tightening spring 26, which is fitted over the side wall 24 of the receiving sleeve 23, prevents the side wall 24 from being excessively expanded and damaged when the knob shank 12 is inserted, and increases the clamping force on the knob shank 12 by restraining the receiving sleeve 23.

In some embodiments, as shown in fig. 1 to 3, the light guide 22 includes a light receiving surface 27 facing the rotary switch assembly 10, and a plurality of light guide structures 28 are disposed on the light receiving surface 27. The light receiving surface 27 may be annular and the light guiding structure 28 serves to disrupt the reflection condition and increase the light incident into the light guide 22. For example, the light guide structure 28 may be a groove, a dot pattern, or other light guide dots formed by engraving, printing, or other techniques, wherein the groove may be zigzag and may extend along a radial direction of the light receiving surface 27. Thus, when light strikes each light guide structure 28, the reflection condition is broken and the light enters the light guide 22.

In some embodiments, as shown in conjunction with fig. 2-3, the knob cap assembly 20 further includes a knob cap trim panel 29, the knob cap trim panel 29 being mounted outside the light guide 22. The knob cap decorative plate 29 serves to cover most of the side of the knob cap assembly 20 for a decorative effect. A groove may be formed on the outer side of the light guide 22, and a knob cap decoration plate 29 may be received in the groove.

In some embodiments, as shown in fig. 2 to 6, the knob switch assembly 10 includes a reset switch 11, the reset switch 11 includes the knob handle 12 and the reset spring 13, and further includes a knob body 14, a brake shaft 15, and a brake pad 16. The reset switch 11 may be a core part of the knob switch assembly 10, and is mainly used for switching a circuit by rotation, and is reset by a reset spring.

Wherein, the knob body 14 is provided with a braking rib 141; the knob body 14 may be formed with a through hole, and the braking rib 141 is a protrusion formed on an inner wall of the through hole. The brake shaft 15 has a first limit portion 151 and a second limit portion 152; the brake shaft 15 may be formed with a through hole, and the first and second position-limiting portions 151 and 152 are two sidewalls defining an axial groove on a sidewall of the through hole. The braking shaft 15 is sleeved on the knob handle 12 in a circumferentially fixed manner, and the knob handle 12 and the braking shaft 15 are inserted into the knob body 14, so that the first limiting portion 151 and the second limiting portion 152 of the braking shaft 15 are matched with the braking rib 141 to limit the rotation range of the knob handle 12. For example, when the knob stem 12 rotates with the braking shaft 15 toward one direction by a first angle, the first position-limiting portion 151 may abut against the first position-limiting portion 151; when the knob stem 12 rotates with the braking shaft 15 in the opposite direction by a second angle, the second position-limiting portion 152 may abut against the first position-limiting portion 151. The first and second angles may each be, for example, 45 degrees.

The knob body 14 is provided with an accommodating groove 142, and the accommodating groove 142 has a third limiting portion 143 and a fourth limiting portion 144. The receiving groove 142 may include a circular groove portion and a square groove portion at one side of the circular groove portion; the third and fourth position-limiting parts 143 and 144 may be two opposite sidewalls of the square groove part. The return spring 13 is located in the receiving groove 142, and the return spring 13 has a first free end 131 and a second free end 132 and a bent portion located between the first free end 131 and the second free end 132, and the bent portion is used for providing most of restoring force; the flexure may be made in half a turn or more to provide different restoring forces. The first free end 131 can abut against the third position-limiting portion 143, and the second free end 132 can abut against the fourth position-limiting portion 144. The brake piece 16 is sleeved on the knob handle 12 in a circumferentially fixed manner, and the brake piece 16 is provided with a fifth limiting part 161 and a sixth limiting part 162; the brake plate 16 is located in the receiving groove 142 and can rotate, and one of the fifth limiting part 161 and the sixth limiting part 162 is used for driving one of the first free end 131 and the second free end 132 to move, so that the return spring 13 is elastically deformed. For example, when the brake pad 16 rotates in one direction, the fifth stopper 161 can drive the first free end 131 to move toward the second free end 132, so as to elastically deform the return spring 13; when the brake plate 16 rotates in the opposite direction, the sixth limiting portion 162 can drive the second free end 132 to move toward the first free end 131, which can also elastically deform the return spring 13.

In some embodiments, as shown in connection with fig. 2-6, the rotary switch assembly 10 includes a front housing 17, a rear housing 18, a circuit board 19, and the aforementioned reset switch 11. The reset switch 11 includes the knob handle 12 and the reset spring 13, and the reset switch 11 is combined with the circuit board 19 to change a conduction state with the circuit board 19 according to the rotation of the knob handle 12. For example, the brake plate 16 may be provided with conductive contacts, and the circuit board 19 may be provided with corresponding conductive contacts, and when the brake plate 16 is driven by the knob handle 12 to rotate to a certain position, the conductive contacts are contacted to conduct a circuit, so as to implement circuit conduction; when the reset torque of the reset spring 13 rotates the knob handle 12 and the catch 16 to the original position, the conductive contacts are misaligned to open the circuit, thereby completing the circuit disconnection. The front housing 17 and the rear housing 18 may be sealingly joined, such as by adhesive, ultrasonic welding, etc., to seal the circuit board 19 and the main body portion of the reset switch 11 therein, with only the mating end 121 of the knob stem 12 extending to mate with the knob cap assembly 20 from the mating end 121.

In addition, the reset switch 11 may further include a knob base 19a, and the knob base 19a may have a receiving hole to receive the other end of the knob stem 12. The knob base 19a can assist in realizing whether the circuit of the brake plate 16 and the circuit board 19 is conducted or not. Alternatively, the knob base 19a may be formed as part of the circuit board 19.

In some embodiments, as shown in conjunction with fig. 2-3, the mating end 121 of the knob shank 12 extends through the front housing 17, and a sealing ring 171 is disposed between the knob shank 12 and the front housing 17. The sealing ring 171 may be a rubber sealing ring, which can play a damping effect on the rotation of the knob handle 12 to increase the hand feeling of the user; meanwhile, the sealing ring 171 can seal and protect the electronic components in the knob switch assembly 10.

In some embodiments, as shown in fig. 2 to 3, the circuit board 19 is provided with at least one light source 191 for emitting light when energized, so as to provide an illumination prompt for the user. The front case 17 includes a light guide part for guiding the light emitted from the light source 191 to the knob cap assembly 20. The front case 17 may be made of a transparent material to be able to transmit light emitted from the light source 191.

In some embodiments, as shown in fig. 1 to 3, the rear housing 18 includes at least one connection portion 181 for fixing to the sanitary ware 200 through the connection portion 181. For example, the connection portion 181 may have a through hole or a screw hole, so that the rear case 18 and the entire switch device 100 can be fixed to the sanitary ware 200 by screws.

In some embodiments, as shown in conjunction with fig. 1-2, the knob cap assembly 20 has a contoured shape in cross-section. For example, the cross section of the knob cap 21 of the knob cap assembly 20 may have various shapes such as a square shape, an oval shape, and the like. Thus, in combination with the reset design described above, the knob cap assembly 20 can still return to the original position after being forced to twist, so that the orientation is not incorrect and an unsightly look is not created due to stopping at any rotational position during use. In this manner, the exterior shape of the knob cap assembly 20 may no longer be limited to a circular shape, but may be variously designed.

Referring to fig. 7, which is a partial perspective view of a sanitary fixture 200 according to an embodiment of the utility model, an installation manner of the switch device 100 and the sanitary fixture 200 is shown. As shown, the toilet 200 of this embodiment may include a sanitary body 201 and a switch device 100 according to any of the above. The switching device 100 is installed on the sanitary body 201. For example, the knob switch assembly 10 of the switch device 100 may be located inside the sanitary body 201, and the knob cap assembly 20 of the switch device 100 may be located outside the sanitary body 201. As further shown, when the knob cap assembly 20 has a square appearance, the knob cap assembly 20 can always be in a vertical or horizontal orientation without being tilted by the reset design of the switching device 100.

In some embodiments, as shown in fig. 7, the sanitary equipment 200 may be a smart toilet, and the switch device 100 is installed on a toilet cover of the smart toilet. This toilet cover may be a mounting base in the toilet assembly.

In addition, when the sanitary ware 200 is an intelligent toilet, the toilet assembly therein may further include a seat plate and a cover plate. The mounting base is used for mounting on the top end of an intelligent toilet and also for housing a control device capable of controlling various operations of the toilet. Both the seat plate and the cover plate can be connected to the mounting base and can move.

In summary, the embodiment of the present invention provides a switch device 100, in which the integrated automatic reset switch 11 is adopted, and the reset torque of the internal reset spring 13 is adjusted to match the weight of the external knob cap assembly 20, so that after the knob cap assembly 20 is reset to the proper position, the user can hardly feel the shaking, and the experience effect is better. In addition, the knob cap assembly 20 of the switch device 100 has a good overall effect and a good appearance by matching the appearance and the light design.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A switchgear, characterized in that it is used in sanitary installations and comprises:

the knob switch assembly comprises a knob handle and a return spring, and the return spring is used for providing return torque for the knob handle; and

the knob cap assembly is arranged on the knob handle and is used for receiving external force to drive the knob handle to rotate; when the knob handle is reset by the reset torque, the knob cap assembly is driven by the knob handle to reset;

the weight of the knob cap assembly is matched with the reset torque of the reset spring so as to prevent the knob cap assembly from shaking after being reset by the reset torque.

2. The switching device according to claim 1,

a ratio of a return torque of the return spring to a weight of the knob cap assembly is 5gf.cm/g to 3 gf.cm/g.

3. The switching device according to claim 1,

the knob cap assembly comprises a knob cap and a light guide part, the knob cap is used for receiving external force, and the light guide part is used for receiving light rays from the knob switch assembly; the light guide piece is installed on one side, far away from the knob switch assembly, of the knob cap and comprises a receiving sleeve, and the knob handle is inserted into the receiving sleeve to be matched with the receiving sleeve.

4. The switching device according to claim 3,

the side wall of the receiving sleeve is provided with at least one axial through groove, a fastening spring is sleeved outside the side wall of the receiving sleeve, and the fastening spring is used for increasing the clamping force of the receiving sleeve on the knob handle; and/or

The light guide piece comprises a light receiving surface facing the knob switch assembly, and a plurality of light guide structures are arranged on the light receiving surface; and/or

The knob cap assembly further comprises a knob cap decorative plate, and the knob cap decorative plate is installed on the outer side of the light guide piece.

5. The switching device according to claim 1,

the knob switch assembly includes a reset switch including the knob handle and the return spring, and further including a knob body, a brake shaft, and a brake pad;

the knob body is provided with a braking rib, and the braking shaft is provided with a first limiting part and a second limiting part; the brake shaft is sleeved on the knob handle in a circumferential fixed mode, and the knob handle and the brake shaft are inserted in the knob body, so that the first limiting part and the second limiting part of the brake shaft are matched with the brake rib to limit the rotating range of the knob handle; and is

The knob body is provided with an accommodating groove, and the accommodating groove is provided with a third limiting part and a fourth limiting part; the reset spring is positioned in the accommodating groove and is provided with a first free end and a second free end, the first free end can abut against the third limiting part, and the second free end can abut against the fourth limiting part; the brake piece is sleeved on the knob handle in a circumferential fixed mode and is provided with a fifth limiting part and a sixth limiting part; the brake block is located in the accommodating groove, and one of the fifth limiting part and the sixth limiting part is used for driving one of the first free end and the second free end to move, so that the return spring is elastically deformed.

6. The switching device according to claim 1,

the knob switch assembly comprises a front shell, a rear shell, a circuit board and a reset switch; the reset switch comprises the knob handle and the reset spring, and is combined with the circuit board so as to change the conduction state with the circuit board according to the rotation of the knob handle; the front shell is hermetically connected with the rear shell so as to seal the circuit board and the main body part of the reset switch in the front shell, and only the matching end of the knob handle extends out so as to be matched and installed with the knob cap assembly through the matching end.

7. The switching device according to claim 6,

the matching end of the knob handle extends out through the front shell, and a sealing ring is arranged between the knob handle and the front shell; and/or

The circuit board is provided with at least one light source, the front shell comprises a light guide part, and the light guide part is used for transmitting light rays emitted by the light source to the knob cap assembly; and/or

The rear shell comprises at least one connecting part for being fixed on the sanitary ware through the connecting part.

8. The switching device according to any one of claims 1 to 7,

the knob cap assembly is non-circular in cross-section.

9. A sanitary installation, comprising:

a bathroom main body; and

a switching device according to any one of claims 1-8;

wherein the switching device is installed on the sanitary ware main body.

10. Sanitary installation according to claim 9,

the bathroom equipment is an intelligent closestool, and the switching device is installed on a closestool upper cover of the intelligent closestool.

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