Delayed automatic closing cover plate and toilet

Abstract

A delayed automatic closing cover plate and a toilet are disclosed. The delayed automatic closing cover plate includes a fixing base, a seat rotationally mounted on the fixing base, a panel, a first reset structure, a damping limit device, and an air device. The panel is rotationally mounted on the fixing base and has an open position and a closed position. When the panel is rotated to the closed position, it is closed on the seat. The first reset structure is arranged between the panel and the fixing base. The damping limit device is arranged between the fixing base and the panel. The air device is arranged on the fixing base, and is operably connected to the panel. An air flow channel is arranged between the air device and the damping limit device, and the air flow channel is configured with a valve device coordinated with the seat.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application is based on and claims the benefit of priority from Chinese Patent Application No. 2025102318178, filed on 27 Feb. 2025, the entirety of which is incorporated by reference herein.TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of sanitary wares, and in particular, to a delayed automatic closing cover plate and a toilet.BACKGROUND

[0003] Currently, toilet cover plates on the market are usually closed by manually flipping down to prevent seats from being contaminated by water stains, dust and other stains when toilets are not in use, and to reduce the evaporation of water in the toilets and the volatilization of bacteria into the air. However, in daily life, people who use the toilets often forget to close panels after leaving, which is not conducive to environmental hygiene.SUMMARY

[0004] An objective of the present disclosure is to solve at least one of the technical problems in the existing technology. To this end, a delayed automatic closing cover plate is proposed, which can automatically close a panel with a delay after a user finishes using the toilet, solving the pain point of users forgetting to cover the panel after using the toilet, which is more conducive to hygiene.

[0005] According to the present disclosure, a toilet with the above delayed automatic closing cover plate is further provided.

[0006] According to an embodiment in a first aspect of the present disclosure, the delayed automatic closing cover plate includes a fixing base, a seat, a panel, a first reset structure, a damping limit device, and an air device. The seat is rotationally mounted on the fixing base. The panel is rotationally mounted on the fixing base, and the panel has an open position and a closed position. When the panel is rotated to the closed position, the panel is closed on the seat. The first reset structure is arranged between the panel and the fixing base. The damping limit device is arranged between the fixing base and the panel. The air device is arranged on the fixing base, the air device is operably connected to the panel, an air flow channel is arranged between the air device and the damping limit device, and the air flow channel is configured with a valve device coordinated with the seat. During rotation of the panel from the closed position to the open position, the panel can drive the air device to evacuate air from or supply air to the damping limit device through the air flow channel, to drive the damping limit device to limit the panel to the open position. When the seat is in a pressurized state, the valve device is closed, and when the seat is in an unpressurized state, the valve device is opened, and the air flow channel is in communication with an outside of the air flow channel through the valve device, such that the damping limit device releases restriction on the panel. When the damping limit device releases the restriction on the panel, the first reset structure can drive the panel to rotate from the open position to the closed position.

[0007] According to some embodiments of the present disclosure, the delayed automatic closing cover plate has at least the following beneficial effects. According to the delayed automatic closing cover plate provided by the present disclosure, when the user uses the toilet, the panel will be manually rotated from the closed position to the open position. During this process, the panel may drive the air device to evacuate air from or supply air to the damping limit device through the air flow channel, thereby driving the damping limit device to limit the panel to the open position. When the panel is in the open position, if someone sits on the seat, the seat is in the pressurized state. At this time, the valve device is closed, such that the air flow channel cannot exchange air with the outside of the air flow channel, and then the damping limit device maintains the restrictive effect on the panel, such that the panel can be kept in the open position for a long time. When the user finishes using the toilet and leaves the seat, the seat is in the unpressurized state. At this time, the valve device is opened, and the air flow channel may exchange air with the outside of the air flow channel through the valve device, thereby allowing the damping limit device to release the restriction on the panel. Since it takes a certain period of time for the air flow channel to complete the air exchange, the damping limit device can only complete the unlocking after a period of time. Therefore, after the user has finished using the toilet for a period of time, the first reset structure can drive the panel to rotate from the open position to the closed position. Therefore, the delayed automatic closing cover plate provided by the present disclosure can automatically close the panel after the user has finished using the toilet for a period of time, solving the pain point of users forgetting to cover the panel after using the toilet, which is more conducive to hygiene.

[0008] According to some embodiments of the present disclosure, the damping limit device includes a suction cup and a baffle arranged opposite to each other, the suction cup is mounted on the panel, the baffle is mounted on the fixing base, the suction cup and the baffle collectively define an air cavity, the air flow channel is in communication with the air cavity, and when the panel is rotated from the closed position to the open position, the panel can drive the air device to evacuate air from the air cavity through the air flow channel, such that the suction cup is attached to the baffle via suction.

[0009] According to some embodiments of the present disclosure, the fixing base is rotationally mounted with a rotating shaft, a first end of the rotating shaft is connected to the panel, a second end of the rotating shaft is arranged opposite to the baffle, the suction cup is mounted at the second end of the rotating shaft, and the suction cup, the rotating shaft and the panel are arranged to rotate synchronously.

[0010] According to some embodiments of the present disclosure, the air device includes a first piston and a first cylinder arranged on the fixing base, the first cylinder defines a first cavity, the air flow channel is in communication with the first cavity, the first piston is slidably mounted in the first cavity, the first piston is operably connected to the panel, and when the panel is rotated relative to the fixing base, the panel can drive the first piston to slide.

[0011] According to some embodiments of the present disclosure, the valve device includes a second piston and a second cylinder arranged on the fixing base, the second cylinder defines a second cavity in communication with the air flow channel, an air inlet hole is provided in an outer surface of the second cylinder, the air inlet hole is in communication with the second cavity, the second piston is slidably mounted in the second cavity and abuts against the seat, and a second reset structure is arranged between the second piston and the second cylinder or between the second piston and the seat. When the seat is in a pressurized state, the seat can drive the second piston to block the air inlet hole, and when the seat is in an unpressurized state, the second reset structure can drive the second piston to slide away from the air inlet hole.

[0012] According to some embodiments of the present disclosure, the fixing base is rotationally mounted with a rotating shaft, a first end of the rotating shaft is connected to the panel, the rotating shaft and the panel are arranged to rotate synchronously, the rotating shaft is operably connected to the air device, the first reset structure is arranged between the rotating shaft and the fixing base, and the damping limit device is arranged between the rotating shaft and the fixing base.

[0013] According to some embodiments of the present disclosure, the first piston is connected to a sleeve, and the sleeve is slidably mounted on the rotating shaft, a transmission portion is fixedly arranged on the rotating shaft, the transmission portion is operably connected with the sleeve. When the panel is rotated from the closed position to the open position, the rotating shaft drives the transmission portion to drive the sleeve to slide, such that the sleeve drives the first piston to slide.

[0014] According to some embodiments of the present disclosure, the fixing base is detachably mounted with a pressure block, the pressure block and the fixing base are cooperated with each other to clamp and fix the first cylinder, the pressure block is provided with a guiding chute, a pulling block is slidably arranged in the guiding chute, the pulling block is in clamp connection with the first piston, the sleeve is provided with a pushing portion, the pushing portion is inserted in the pulling block, and a third reset structure is arranged between the pulling block and the pressure block.

[0015] According to some embodiments of the present disclosure, a buffer is arranged between the fixing base and the panel, and the buffer is configured to decelerate a rotational speed of the panel when being rotated toward the closed position.

[0016] According to an embodiment in a second aspect of the present disclosure, a toilet is provided which includes the above delayed automatic closing cover plate.

[0017] According to an embodiment of the present disclosure, the toilet has at least the following beneficial effects. By using the above delayed automatic closing cover plate, the panel can be automatically closed with a delay after a user finishes using the toilet, solving the pain point of users forgetting to cover the panel after using the toilet, which is more conducive to hygiene.

[0018] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will become apparent from the following description, or will be learned through practice of the present disclosure.BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments taken in conjunction with the accompanying drawings.

[0020] FIG. 1 is a schematic diagram of a delayed automatic closing cover plate (when a panel is in a closed position) according to an embodiment of the present disclosure;

[0021] FIG. 2 is a cross-sectional view of the delayed automatic closing cover plate shown in FIG. 1;

[0022] FIG. 3 is an enlarged view of a part A in FIG. 2;

[0023] FIG. 4 is an enlarged view of a part B in FIG. 2;

[0024] FIG. 5 is an exploded view of the delayed automatic closing cover plate shown in FIG. 1;

[0025] FIG. 6 is an exploded view of the delayed automatic closing cover plate at a rotating shaft shown in FIG. 1;

[0026] FIG. 7 is a schematic diagram of a toilet having the delayed automatic closing cover plate shown in FIG. 1; and

[0027] FIG. 8 is a schematic diagram of the toilet shown in FIG. 7 when a panel is in an open position.Reference numerals

[0028] fixing base 110, pressure block 120, guiding chute 121, seat 210, panel 220, first reset structure 230, rotating shaft 240, transmission portion 241, damping limit device 310, suction cup 311, baffle 312, air cavity 310a, air flow channel 310b, air device 320, first piston 321, first cylinder 322, first cavity 3221, valve device 400, second piston 410, second cylinder 420, second cavity 421, air inlet hole 422, second reset structure 430, pipeline 440, sleeve 510, pushing portion 511, pulling block 520, third reset structure 530, buffer 600, and toilet bowl 700.DETAILED DESCRIPTION

[0029] Embodiments of the present disclosure will be described in detail below. Examples of the embodiments are illustrated in the accompanying drawings, where the same or like reference numerals throughout the figures indicate the same or like elements having the same or like functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present disclosure instead of being construed as limiting the present disclosure.

[0030] In the description of the present disclosure, it should be understood that, descriptions relating to orientation, for example, orientation or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are to facilitate the description of the present disclosure and simplify the description only, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present disclosure.

[0031] In the description of the present disclosure, the meaning of “several” is one or more, the meaning of “a plurality of” is two or more, “greater than”, “less than”, “more than”, etc. are to be understood to exclude the given figure, and “above”, “below”, “within”, etc. are understood to include the given figure. If “first” and “second”, etc. are referred to, it is only for the purpose of distinguishing technical features, and shall not be understood as indicating or implying relative importance or implying the number of the indicated technical features or implying the sequence of the indicated technical features.

[0032] In the description of the present disclosure, unless otherwise explicitly defined, the words such as “set”, “install”, and “connect” should be understood in a broad sense, and those skilled in the art can determine the specific meanings of the above words in the present disclosure in a rational way in combination with the specific contents of the technical solutions.

[0033] Referring to FIGS. 1, 2, 7 and 8, according to an embodiment in a first aspect of the present disclosure, a delayed automatic closing cover plate includes a fixing base 110, a seat 210, a panel 220, a first reset structure 230, a damping limit device 310, and an air device 320. The seat 210 is rotationally mounted on the fixing base 110. The panel 220 is rotationally mounted on the fixing base 110, the panel 220 has an open position and a closed position. When the panel 220 is rotated to the closed position, the panel 220 is closed on the seat 210. The first reset structure 230 is arranged between the panel 220 and the fixing base 110. The damping limit device 310 is arranged between the fixing base 110 and the panel 220. The air device 320 is arranged on the fixing base 110, the air device 320 is operably connected to the panel 220, an air flow channel 310b is arranged between the air device 320 and the damping limit device 310, and the air flow channel 310b is configured with a valve device 400 coordinated with the seat 210. During rotation of the panel 220 from the closed position to the open position, the panel 220 can drive the air device 320 to evacuate air from or supply air to the damping limit device 310 through the air flow channel 310b, to drive the damping limit device 310 to limit the panel 220 to the open position. When the seat 210 is in a pressurized state, the valve device 400 is closed, and when the seat 210 is in an unpressurized state, the valve device 400 is opened, allowing the air flow channel 310b to be in communication with an outside of the air flow channel 310b through the valve device 400, thereby releasing the restriction on the panel 220 by the damping limit device 310. When the damping limit device 310 releases the restriction on the panel 220, the first reset structure 230 can drive the panel 220 to rotate from the open position to the closed position.

[0034] According to the delayed automatic closing cover plate provided by the present disclosure, when the user uses the toilet, the panel 220 will be manually rotated from the closed position to the open position. During this process, the panel 220 may drive the air device 320 to evacuate air from or supply air to the damping limit device 310 through the air flow channel 310b, thereby driving the damping limit device 310 to limit the panel 220 to the open position. When the panel 220 is in the open position, if someone sits on the seat 210, the seat 210 is in the pressurized state. At this time, the valve device 400 is closed, such that the air flow channel 310b cannot exchange air with the outside of the air flow channel 310b, and then the damping limit device 310 maintains the restrictive effect on the panel 220, such that the panel 220 can be kept in the open position for a long time. When the user finishes using the toilet and leaves the seat 210, the seat 210 is in the unpressurized state. At this time, the valve device 400 is opened, and the air flow channel 310b may exchange air with the outside of the air flow channel 310b through the valve device 400, thereby allowing the damping limit device 310 to release the restriction on the panel 220. Since it takes a certain period of time for the air flow channel 310b to complete the air exchange, the damping limit device 310 can only complete the unlocking after a period of time. Therefore, after the user has finished using the toilet for a period of time, the first reset structure 230 can drive the panel 220 to rotate from the open position to the closed position. Therefore, the delayed automatic closing cover plate provided by the present disclosure can automatically close the panel 220 after the user has finished using the toilet for a period of time, solving the pain point of users forgetting to cover the panel 220 after using the toilet, which is more conducive to hygiene.

[0035] The damping limit device 310 limits the rotation of the panel 220 by applying a damping force to the panel 220. As long as the user uses a certain amount of force to overcome the damping force applied by the damping limit device 310, the user can manually rotate the panel 220 from the open position to the closed position. Therefore, the delayed automatic closing cover plate provided by the present disclosure allows the user to manually close the panel 220 as needed, retaining the usage characteristics of a traditional toilet and avoiding damage to the panel 220 when the panel 220 is forcibly pushed from the open position to the closed position.

[0036] In addition, the entire delayed automatic closing cover plate can realize automatic closing of the panel 220 completely through a mechanical structure. It eliminates the need for electronic components prone to failure in humid environments, requires no power supply, and offers extended service life with high operational reliability.

[0037] In a specific implementation process, the first reset structure 230 may be configured as a torsion spring. Of course, the first reset structure 230 may also be configured in other ways, for example, the first reset structure 230 is configured as an elastic cable, or the first reset structure 230 includes two magnets, one of which is mounted on the panel 220 and the other is mounted on the fixing base 110, and the panel 220 may be driven to rotate through the attraction or repulsion generated between the two magnets.

[0038] Referring to FIGS. 2, 3 and 5, according to some embodiments of the present disclosure, the damping limit device 310 includes a suction cup 311 and a baffle 312. The suction cup 311 and the baffle 312 are arranged opposite to each other, the suction cup 311 is mounted at the panel 220, the baffle 312 is mounted at the fixing base 110. The suction cup 311 and the baffle 312 collectively define an air cavity 310a, the air flow channel 310b is in communication with the air cavity 310a. When the panel 220 is rotated from the closed position to the open position, the panel 220 can drive the air device 320 to evacuate air from the air cavity 310a through the air flow channel 310b, such that a negative pressure is formed in the air cavity 310a to tightly attach the suction cup 311 to the baffle 312 via suction, and therefore, the damping force between the suction cup 311 and the baffle 312 is increased to prevent the panel 220 from being driven away from the open position by the first reset structure 230. This configuration ensures a simple, low-cost, and easily installable damping limit device 310.

[0039] Referring to FIGS. 2, 3 and 5, according to some embodiments of the present disclosure, the fixing base 110 is rotationally mounted with a rotating shaft 240, a first end of the rotating shaft 240 is connected to the panel 220, a second end of the rotating shaft 240 is arranged opposite to the baffle 312. The suction cup 311 is mounted at the second end of the rotating shaft 240, and the suction cup 311, the rotating shaft 240 and the panel 220 are arranged to rotate synchronously. Through the above arrangement, during the rotation of the panel 220 from the closed position to the open position, the panel 220 can drive the rotating shaft 240 and the suction cup 311 to rotate synchronously and coaxially. During this process, the suction cup 311 and the baffle 312 can be attached to each other tightly to avoid leakage of the air cavity 310a during air evacuation of the air device 320 from the air cavity 310a, such that the damping limit device 310 can work reliably. In addition, the rotation travel of the suction cup 311 relative to the baffle 312 can also be decreased, thereby reducing the wear of the suction cup 311.

[0040] Since the suction cup 311 is an elastic component, when the air device 320 evacuates air from the air cavity 310a, the suction cup 311 may be deformed to be attached to the baffle 312 via suction. When the valve device 400 is opened, under the elastic force of the suction cup 311, the air may enter the air flow channel 310b from the outside of the air flow channel 310b, and the air in the air flow channel 310b may enter the air cavity 310a. Finally, the suction cup 311 returns to its original state, such that the damping force between the suction cup 311 and the baffle 312 decreases, and then the first reset structure 230 may drive the panel 220 to rotate from the open position to the closed position. After the suction cup 311 returns to its original state, the damping limit device 310 may be used again.

[0041] It should be noted that the above damping limit device 310 may also be configured in other ways. For example, the damping limit device 310 may include two claws arranged opposite to each other and a driving cylinder. The driving cylinder is in communication with the air device 320 through the air flow channel 310b. The driving cylinder is operably connected to the two claws. Thus, the air device 320 provides the required power to the driving cylinder by evacuating or supplying air to the driving cylinder, such that the driving cylinder may drive the two claws to clamp the rotating shaft 240, thereby increasing the damping force on the rotating shaft 240, and further limiting the panel 220 from leaving the open position. The driving cylinder is internally provided with a spring for resetting the piston. When the valve device 400 is opened, the spring may drive the piston of the driving cylinder to reset gradually and release the two clamping jaws at the same time, such that the damping limit device 310 may be used again.

[0042] Referring to FIGS. 2, 3 and 5, according to some embodiments of the present disclosure, the air device 320 includes a first piston 321 and a first cylinder 322 arranged on the fixing base 110. The first cylinder 322 defines a first cavity 3221, the air flow channel 310b is in communication with the first cavity 3221. The first piston 321 is slidably mounted in the first cavity 3221, the first piston 321 is operably connected to the panel 220. When the panel 220 is rotated relative to the fixing base 110, the panel 220 can drive the first piston 321 to slide. This configuration ensures a simple, cost-effective, and easily installable air mechanism air device 320.

[0043] The air flow channel 310b is in communication with one end of the first cylinder chamber 3221. When the panel 220 drives the first piston 321 to slide away from the air flow channel 310b, the volume of the first cylinder chamber 3221 in communication with the air flow channel 310b increases, thereby achieving air evacuation from the air flow channel 310b.

[0044] It should be noted that, in other embodiments, the air device320 may also be configured in other ways. For example, the air device 320 may include an elastic airbag and a push-pull member. The push-pull member is operably connected to the panel 220. Thus, when the panel 220 is rotated from the closed position to the open position, the panel 220 can drive the push-pull member to push or pull the airbag, thereby enabling the airbag to evacuate or supply air.

[0045] Referring to FIGS. 2, 4 and 5, according to some embodiments of the present disclosure, the valve device 400 includes a second piston 410 and a second cylinder 420 arranged on the fixing base 110. The second cylinder 420 defines a second cavity 421 in communication with the air flow channel 310b. An air inlet hole 422 is provided in an outer surface of the second cylinder 420, the air inlet hole 422 is in communication with the second cavity 421. The second piston 410 is slidably mounted in the second cavity 421 and abuts against the seat 210. A second reset structure 430 is arranged between the second piston 410 and the second cylinder 420 or between the second piston 410 and the seat 210. When the seat 210 is in a pressurized state, the seat 210 can drive the second piston 410 to block the air inlet hole 422, and when the seat 210 is in an unpressurized state, the second reset structure 430 can drive the second piston 410 to slide away from the air inlet hole 422. This configuration ensures a simple, reliable, and low-cost valve device 400.

[0046] The larger the air inlet hole 422, the faster the air flow channel 310b completes the air exchange, and the shorter the time of delayed closing of the panel 220. The smaller the air inlet hole 422, the slower the air flow channel 310b completes the air exchange, and the longer the time of delayed closing of the panel 220. The actual size of the air inlet hole 422 may be determined by those of ordinary skill in the art according to actual needs, which is not limited here.

[0047] Referring to FIG. 5, in a specific implementation process, the valve device 400 includes a pipeline 440, and the air flow channel 310b is in communication with the second cavity 421 through the pipeline 440.

[0048] In a specific implementation process, the second reset structure 430 may be configured as a spring, an elastic cable or other structures, which is not limited here.

[0049] It is conceivable that in other embodiments, the second piston 410 described above may be operably connected to the seat 210. When the seat 210 is rotationally switched between a pressurized state and an unpressurized state, the seat 210 may drive the second piston 410 to slide, thereby opening or closing the air inlet hole 422. With this arrangement, the second reset structure 430 described above may not be necessary.

[0050] In other embodiments, the valve device 400 may also be configured in other ways, for example. The valve device 400 may be configured as a ball valve, a valve core of the ball valve is operably connected to the seat 210. When the seat 210 is rotationally switched between a pressurized state and an unpressurized state, the seat 210 may drive the valve core of the ball valve to rotate to open or close the ball valve.

[0051] Referring to FIGS. 2 and 5, according to some embodiments of the present disclosure, a rotating shaft 240 is rotationally mounted on a fixing base 110, a first end of the rotating shaft 240 is connected to a panel 220, the rotating shaft 240 and the panel 220 are arranged to rotate synchronously. The rotating shaft 240 is operably connected to an air device 320, a first reset structure 230 is arranged between the rotating shaft 240 and the fixing base 110, and a damping limit device 310 is arranged between the rotating shaft 240 and the fixing base 110. The provision of the rotating shaft 240 can provide more mounting space for components such as the damping limit device 310 and the air device 320, making the mounting more convenient.

[0052] Referring to FIGS. 2, 5 and 6, according to some embodiments of the present disclosure, a first piston 321 is connected to a sleeve 510, the sleeve 510 is slidably mounted on the rotating shaft 240, a transmission portion 241 is fixedly arranged on the rotating shaft 240, and the transmission portion 241 is operably connected with the sleeve 510. When the panel 220 is rotated from the closed position to the open position, the rotating shaft 240 drives the transmission portion 241 to drive the sleeve 510 to slide, such that the sleeve 510 drives the first piston 321 to slide.

[0053] Referring to FIGS. 5 and 6, in some embodiments, the transmission portion 241 is located on one side of the sleeve 510, and the transmission portion 241 is in transmission fit with the sleeve 510 through a spiral inclined plane.

[0054] In other embodiments, threads may be adopted for transmission between the transmission portion 241 and the sleeve 510.

[0055] Referring to FIGS. 2, 3 and 5, according to some embodiments of the present disclosure, a pressure block 120 is detachably mounted on the fixing base 110, and the pressure block 120 cooperates with the fixing base 110 to clamp and fix the first cylinder 322. The pressure block 120 is provided with a guiding chute 121, and a pulling block 520 is slidably arranged in the guiding chute 121, the pulling block 520 is in clamp connection with the first piston 321. The sleeve 510 is provided with a pushing portion 511, the pushing portion 511 is inserted into the pulling block 520, and a third reset structure 530 is arranged between the pulling block 520 and the pressure block 120. This configuration facilitates the installation of the air device 320 and its connection to the rotating shaft 240, improving overall assembly efficiency of the entire delayed automatic closing cover plate.

[0056] It should be noted that the rotating shaft 240 and the first piston 321 may also be operably connected in other ways. For example, a gear is mounted on the rotating shaft 240, and a rack is arranged on the first piston 321, with the rack and gear engaging to transmit motion.

[0057] In specific implementation, the third reset structure 530 may be configured as a spring, elastic cable or other structure, which is not limited here.

[0058] Referring to FIGS. 2 and 5, according to some embodiments of the present disclosure, a buffer 600 is arranged between the fixing base 110 and the panel 220, and the buffer 600 is configured to decelerate a rotational speed of the panel 220 when being rotated toward the closed position. The buffer 600 can reduce the rotational speed of the panel 220 when approaching the closed position to prevent the panel 220 from rotating quickly to the closed position to cause a strong collision between the panel 220 and the seat 210, thereby protecting the panel 220 and the seat 210, reducing the sound when the panel 220 is closed, and achieving a silent effect.

[0059] Referring to FIGS. 7 and 8, a toilet according to an embodiment in a second aspect of the present disclosure includes the above delayed automatic closing cover plate. By adopting the above delayed automatic closing cover plate, after the user has finished using the toilet, the panel 220 can be automatically closed with a delay, solving the pain point that the user forgets to cover the panel 220 after using the toilet, which is more conducive to hygiene.

[0060] Referring to FIG. 7, in some embodiments, the toilet generally further includes a toilet bowl 700, and the fixing base 110 is fixedly mounted on the toilet bowl 700. When the panel 220 is in the closed position, the panel 220 and the seat 210 are closed on the toilet bowl 700, thereby closing an opening of the toilet bowl 700.

[0061] Of course, it is conceivable that the above delayed automatic closing cover plate may also be applied to other occasions where the panel 220 is required.

[0062] The technical features of the above embodiments may be arbitrarily combined. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments of the present disclosure are described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the above embodiments. Various changes can be made within the knowledge scope of those of ordinary skill in the technical field without departing from the purpose of the present disclosure.

Claims

1. A delayed automatic closing cover plate, comprising:a fixing base;a seat rotationally mounted on the fixing base;a panel rotationally mounted on the fixing base, wherein the panel has an open position and a closed position, and when the panel is rotated to the closed position, the panel is closed on the seat;a first reset structure arranged between the panel and the fixing base;a damping limit device arranged between the fixing base and the panel; andan air device arranged on the fixing base, wherein the air device is operably connected to the panel, an air flow channel is arranged between the air device and the damping limit device, and the air flow channel is configured with a valve device coordinated with the seat;wherein during rotation of the panel from the closed position to the open position, the panel is capable of driving the air device to evacuate air from or supply air to the damping limit device through the air flow channel, to drive the damping limit device to limit the panel to the open position; wherein when the seat is in a pressurized state, the valve device is closed, and when the seat is in an unpressurized state, the valve device is opened, and the air flow channel is in communication with an outside of the air flow channel through the valve device, such that the damping limit device releases restriction on the panel; and when the damping limit device releases the restriction on the panel, the first reset structure is capable of driving the panel to rotate from the open position to the closed position.

2. The delayed automatic closing cover plate according to claim 1, wherein the damping limit device comprises a suction cup and a baffle arranged opposite to each other, the suction cup is mounted at the panel, the baffle is mounted at the fixing base, the suction cup and the baffle collectively define an air cavity, the air flow channel is in communication with the air cavity, and when the panel is rotated from the closed position to the open position, the panel is capable of driving the air device to evacuate air from the air cavity through the air flow channel, such that the suction cup is attached to the baffle via suction.

3. The delayed automatic closing cover plate according to claim 2, wherein the fixing base is rotationally mounted with a rotating shaft, a first end of the rotating shaft is connected to the panel, a second end of the rotating shaft is arranged opposite to the baffle, the suction cup is mounted at the second end of the rotating shaft, and the suction cup, the rotating shaft and the panel are arranged to rotate synchronously.

4. The delayed automatic closing cover plate according to claim 1, wherein the air device comprises a first piston and a first cylinder arranged on the fixing base, the first cylinder defines a first cavity, the air flow channel is in communication with the first cavity, the first piston is slidably mounted in the first cavity, the first piston is operably connected to the panel, and when the panel is rotated relative to the fixing base, the panel is capable of driving the first piston to slide.

5. The delayed automatic closing cover plate according to claim 1, wherein the valve device comprises a second piston and a second cylinder arranged on the fixing base, the second cylinder defines a second cavity in communication with the air flow channel, an air inlet hole is provided in an outer surface of the second cylinder, the air inlet hole is in communication with the second cavity, the second piston is slidably mounted in the second cavity and abuts against the seat, and a second reset structure is arranged between the second piston and the second cylinder or between the second piston and the seat, wherein when the seat is in a pressurized state, the seat is capable of driving the second piston to block the air inlet hole, and when the seat is in an unpressurized state, the second reset structure is capable of driving the second piston to slide away from the air inlet hole.

6. The delayed automatic closing cover plate according to claim 4, wherein the fixing base is rotationally mounted with a rotating shaft, a first end of the rotating shaft is connected to the panel, the rotating shaft and the panel are arranged to rotate synchronously, the rotating shaft is operably connected to the air device, the first reset structure is arranged between the rotating shaft and the fixing base, and the damping limit device is arranged between the rotating shaft and the fixing base.

7. The delayed automatic closing cover plate according to claim 6, wherein the first piston is connected to a sleeve, the sleeve is slidably mounted on the rotating shaft, a transmission portion is fixedly arranged on the rotating shaft, the transmission portion is operably connected with the sleeve, and when the panel is rotated from the closed position to the open position, the rotating shaft drives the transmission portion to drive the sleeve to slide, such that the sleeve drives the first piston to slide.

8. The delayed automatic closing cover plate according to claim 7, wherein the fixing base is detachably mounted with a pressure block, the pressure block and the fixing base are cooperated with each other to clamp and fix the first cylinder, the pressure block is provided with a guiding chute, a pulling block is slidably arranged in the guiding chute, the pulling block is in clamp connection with the first piston, the sleeve is provided with a pushing portion, the pushing portion is inserted into the pulling block, and a third reset structure is arranged between the pulling block and the pressure block.

9. The delayed automatic closing cover plate according to claim 1, wherein a buffer is arranged between the fixing base and the panel, and the buffer is configured to decelerate a rotational speed of the panel when the panel is rotated toward the closed position.

10. A toilet, comprising the delayed automatic closing cover plate according to claim 1.

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