Automatic cover plate and pedestal pan

Abstract

The automatic cover plate comprises a base, a seat ring and a toilet cover, the base is provided with an air compression device and a pneumatic limiting device, the air compression device is provided with an air return structure, and the pneumatic limiting device is provided with a slow leakage valve; the seat ring is rotatably mounted on the base, and the seat ring in a seated state can close the slow leakage valve; the barrel cover is rotationally installed on the base and is in transmission fit with the air compression device, a first reset structure matched with the pneumatic limiting device is arranged between the barrel cover and the base, and when the barrel cover rotates from the closed position to the open position, the barrel cover drives the air compression device to exhaust air in the air compression device to the pneumatic limiting device through the first flow channel; the pneumatic limiting device is driven to limit work of the first reset structure. According to the automatic cover plate, the barrel cover can be automatically closed after a period of time of defecation of a user, the problem that the user forgets to cover the barrel cover after defecation is solved, and the user is allowed to open or close the barrel cover at any time according to needs.

Description

Technical Field

[0001] The present invention relates to the technical field of toilets, and in particular to an automatic cover and a toilet. Background Art

[0002] A toilet is also called a toilet. In addition to the seat ring, the main body of a traditional toilet is usually equipped with a lid. Users can cover the lid and the seat ring together on the main body of the toilet to reduce the evaporation of water in the toilet and the volatilization of bacteria into the air, thereby improving environmental hygiene. However, people who use the toilet often forget to close the lid after leaving, which is not conducive to environmental hygiene. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an automatic cover that can automatically close the lid after the user has finished using the toilet for a period of time, solving the pain point of the user forgetting to cover the lid after using the toilet, and allowing the user to open or close the lid at any time as needed, retaining the use characteristics of the traditional toilet.

[0004] The present invention also provides a toilet with the automatic cover.

[0005] The automatic cover according to the first aspect of the present invention comprises a base, a seat ring and a barrel cover, the base is provided with a compressed air device and a pneumatic limiting device, a first flow channel is connected between the compressed air device and the pneumatic limiting device, a one-way valve is provided between the compressed air device and the pneumatic limiting device, the one-way valve is used to limit the air from flowing from the pneumatic limiting device to the compressed air device, the compressed air device is provided with an air return structure, and the pneumatic limiting device is provided with a slow-leak valve; the seat ring is rotatably mounted on the base; the barrel cover is rotatably mounted on the base, the barrel cover has an open position and a closed position, the barrel cover is transmission-coordinated with the compressed air device, a first reset structure cooperating with the pneumatic limiting device is provided between the barrel cover and the base; when the barrel cover is in the closed position, the barrel cover is closed on the seat ring ; When the barrel cover rotates from the closed position to the open position, the barrel cover drives the compressed air device to discharge the air in the compressed air device through the first flow channel to the pneumatic limit device, so as to drive the pneumatic limit device to limit the operation of the first reset structure; when the barrel cover is in the open position, when the seat ring is in a seated state, the seat ring can close the slow-leak valve, and when the seat ring is not in a seated state, the pneumatic limit device can exhaust air through the slow-leak valve to enable the pneumatic limit device to unlock the first reset structure, wherein the slow-leak valve can control the speed of air deflation of the pneumatic limit device; after the pneumatic limit device unlocks the first reset structure, the first reset structure can drive the barrel cover to rotate from the open position to the closed position, and the compressed air device returns air through the return air structure.

[0006] The automatic cover according to the embodiment of the present invention has at least the following beneficial effects: the automatic cover provided by the present invention can be opened manually when a person goes to the toilet. With the force of the person opening the cover manually, the cover can drive the compressed air device to discharge the air in the compressed air device through the first flow channel to the pneumatic limit device, and the air discharged by the compressed air device can drive the pneumatic limit device to limit the operation of the first reset structure; when the cover is in the open position, if someone sits on the seat ring, the seat ring can close the slow leak valve, so that the pneumatic limit device cannot exhaust air, and then the pneumatic limit device maintains the state of limiting the operation of the first reset structure. When the operation of the first reset structure is limited, the first reset structure cannot drive the cover to reset. Therefore, when someone sits on the seat ring, the cover can be kept in the open position for a long time. When the seat ring is in a non-sitting state, the slow leak valve is in an open state. At this time, the pneumatic limit device can slowly close the slow leak valve Exhaust is used to allow the pneumatic limit device to unlock the first reset structure, wherein the slow-leak valve can control the speed of the pneumatic limit device's air release, thereby achieving a delay of a period of time before the pneumatic limit device completely unlocks the first reset structure. After the pneumatic limit device unlocks the first reset structure, the first reset structure can drive the barrel cover to rotate to the closed position, and at the same time, the compressed air device returns air through the return air structure so that the automatic cover can be used next time. Through the above-mentioned arrangement, the automatic cover provided by the present invention can automatically close the barrel cover after the user has finished using the toilet for a period of time, thereby solving the pain point that the user forgets to cover the barrel cover after using the toilet. In addition, the automatic cover provided by the present invention does not directly limit the rotation of the barrel cover because the pneumatic limit device does not directly limit the rotation of the barrel cover, so the function of manually opening and closing the barrel cover does not interfere with the function of automatically closing the barrel cover, and the user can still open or close the barrel cover (or seat ring) at any time as needed, thereby retaining the use characteristics of the traditional toilet and not affecting the experience of traditional users.

[0007] According to some embodiments of the present invention, the barrel cover is rotatably mounted on the base via a rotating shaft, the barrel cover rotates synchronously with the rotating shaft, a hook is provided on the rotating shaft, the first reset structure includes a reset elastic member, the reset elastic member is provided between the rotating shaft and the base, the reset elastic member is provided with a reset portion, the reset portion is located on one side of the hook, the reset portion is used to abut and cooperate with the hook to achieve reset of the rotating shaft, and the pneumatic limit device can limit the reset of the rotating shaft by limiting the movement of the reset portion.

[0008] According to the automatic cover of the embodiment of the present invention, the reset elastic member includes two torsion spring parts, the two torsion spring parts are sleeved on the rotating shaft, the reset part is connected between the two torsion spring parts, and the torsion spring part has a supporting foot abutting against the base.

[0009] According to the automatic cover of the embodiment of the present invention, the barrel cover is rotatably installed on the base through a rotating shaft, the barrel cover rotates synchronously with the rotating shaft, a rolling part is provided on the rotating shaft, the rolling part is eccentrically arranged relative to the rotation axis of the rotating shaft, the rolling part abuts and cooperates with the compressed air device, and when the barrel cover rotates from the closed position to the open position, the rolling part can drive the compressed air device to exhaust.

[0010] According to the automatic cover plate of an embodiment of the present invention, the compressed air device includes a compression chamber, a first piston and a second reset structure, the compression chamber is arranged on the base, the first piston is slidably arranged in the compression chamber, the first piston is abutted and cooperated with the rolling part, the second reset structure is arranged between the first piston and the base, and the second reset structure is used to drive the first piston to slide in the direction of the rotating shaft.

[0011] According to the automatic cover plate of the embodiment of the present invention, a first guide portion is provided in the compression chamber, a second flow channel is provided in the first guide portion, the first piston is slidably mounted on the first guide portion, the one-way valve is provided in the second flow channel, and the compression chamber is connected with the first flow channel through the second flow channel.

[0012] According to the automatic cover plate of an embodiment of the present invention, the first piston includes a pushing member and a sealing plug, the sealing plug is sleeved on the pushing member, and a sliding seal is formed between the sealing plug and the inner wall of the compression chamber, wherein the return air structure includes a return air gap between the sealing plug and the pushing member, and the sealing plug can slide relative to the pushing member to open and close the return air gap.

[0013] According to the automatic cover plate of an embodiment of the present invention, the pneumatic limiting device includes an air storage chamber, a second piston and a third reset structure, one end of the second piston is slidably disposed in the air storage chamber, the other end of the second piston is used to abut and cooperate with the reset part to limit the movement of the reset part, and the third reset structure is used to drive the second piston to slide in a direction away from the rotating shaft.

[0014] According to the automatic cover plate of the embodiment of the present invention, the slow-leak valve includes a valve seat, an elastic ball and a fourth reset structure, the valve seat is installed on the base, a leak flow channel is arranged in the valve seat, the leak flow channel is connected with the pneumatic limit device, the leak flow channel has a leak hole, a sealing member is arranged at the leak hole, the elastic ball is arranged opposite to the leak hole, and the fourth reset structure is arranged between the elastic ball and the valve seat, wherein, when the seat ring is in a seated state, the seat ring drives the elastic ball to abut against the sealing member to close the leak hole, and when the seat ring is in a non-seated state, the fourth reset structure can drive the elastic ball to move away from the sealing member to open the leak hole.

[0015] A toilet according to an embodiment of the second aspect of the present invention comprises the automatic cover mentioned above.

[0016] The toilet according to the embodiment of the present invention has at least the following beneficial effects: by adopting the above-mentioned automatic cover, the toilet can automatically close the lid after the user has finished using the toilet for a period of time, thereby solving the pain point of the user forgetting to cover the lid after using the toilet.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic diagram of the automatic cover plate (when the barrel cover is in the closed position) of an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the automatic cover (when the barrel cover is in the open position) shown;

[0021] Figure 3 for Figure 1 An exploded view of the automatic cover is shown;

[0022] Figure 4 for Figure 1 A cross-sectional view of the automatic cover at the rotating shaft is shown;

[0023] Figure 5 for Figure 4 Sectional view at the middle AA section (hidden barrel cover and seat ring);

[0024] Figure 6 for Figure 2 A cross-sectional view of a compressed air device for an automatic cover is shown;

[0025] Figure 7 for Figure 4 Sectional view at the middle BB section (hidden barrel cover and seat ring);

[0026] Figure 8 for Figure 2 A cross-sectional view of a pneumatic limiter device for an automatic cover is shown;

[0027] Fig. 9 for Figure 4 Sectional view at the CC section;

[0028] Fig.10 for Figure 1 A cross-sectional view of a slow-leak valve of an automatic cover plate is shown;

[0029] Fig.11 for Figure 1 An exploded view of the automatic cover at the base is shown.

[0030] Reference numerals:

[0031] Base 100, compressed air device 110, compression chamber 111, first piston 112, pusher 1121, sealing plug 1122, air return gap 1123, second reset structure 113, first guide portion 114, second flow channel 1141, mounting port 1142, pneumatic limit device 120, air storage chamber 121, guide jack 1211, second piston 122, guide column 1221, third reset structure 123, The second guide portion 124, the first flow channel 130, the seat ring 200, the barrel cover 300, the rotating shaft 400, the hook 410, the rolling portion 420, the reset elastic member 500, the reset portion 510, the torsion spring portion 520, the supporting foot 530, the one-way valve 600, the slow-leak valve 700, the valve seat 710, the leakage flow channel 711, the leakage hole 712, the sealing member 720, the elastic wave 730, the fourth reset structure 740, and the joint 800. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figures 1 to 4 According to the first aspect of the present invention, the automatic cover plate includes a base 100, a seat ring 200 and a barrel cover 300. The base 100 is provided with a compressed air device 110 and a pneumatic limit device 120. A first flow channel 130 is connected between the compressed air device 110 and the pneumatic limit device 120. A one-way valve 600 is provided between the compressed air device 110 and the pneumatic limit device 120. The one-way valve 600 is used to limit the air from the pneumatic limit device 120 to the compressed air device 110. The air device 110 is provided with an air return structure, and the pneumatic limit device 120 is provided with a slow-leak valve 700; the seat ring 200 is rotatably mounted on the base 100; the barrel cover 300 is rotatably mounted on the base 100, and the barrel cover 300 has an open position and a closed position, and the barrel cover 300 is transmission-matched with the compressed air device 110, and a first reset structure that cooperates with the pneumatic limit device 120 is provided between the barrel cover 300 and the base 100; when the barrel cover 300 is in the closed position, the barrel cover 300 is closed on the seat ring 200 (refer to Figure 1 ); when the barrel cover 300 is rotated from the closed position to the open position (refer to Figure 1 and Figure 2 ), the barrel cover 300 drives the compressed air device 110 to discharge the air in the compressed air device 110 through the first flow channel 130 to the pneumatic limit device 120 (refer to Figure 5 and Figure 6 ), to drive the pneumatic limit device 120 to limit the operation of the first reset structure; when the barrel cover 300 is in the open position, when the seat ring 200 is in the seated state, the seat ring 200 can close the slow leak valve 700 (refer to Fig. 9 ), when the seat ring 200 is not in the seated state, the slow-leak valve 700 is in the open state (refer to Fig.10), the pneumatic limit device 120 can exhaust air through the slow-leak valve 700 to enable the pneumatic limit device 120 to unlock the first reset structure, wherein the slow-leak valve 700 can control the speed of air release from the pneumatic limit device 120; after the pneumatic limit device 120 unlocks the first reset structure, the first reset structure can drive the barrel cover 300 to rotate from the open position to the closed position, and the compressed air device 110 returns air through the return air structure.

[0037] The automatic cover provided by the present invention can manually open the barrel cover 300 when a person goes to the toilet. With the force of manually opening the barrel cover 300, the barrel cover 300 can drive the compressed air device 110 to discharge the air in the compressed air device 110 through the first flow channel 130 to the pneumatic limit device 120, and the air discharged by the compressed air device 110 can drive the pneumatic limit device 120 to limit the operation of the first reset structure; when the barrel cover 300 is in the open position, if someone sits on the seat ring 200 and presses the seat ring 200 down, the seat ring 200 can close the slow leak valve 700, so that the pneumatic limit device 120 cannot exhaust air, and then the pneumatic limit device 120 maintains the state of restricting the first reset structure. When the operation of the first reset structure is restricted, the first reset structure cannot drive the barrel cover 300 to reset. Therefore, when someone sits on the seat ring 200, the barrel cover 300 0 can be kept in the open position for a long time. When the seat ring 200 is in the unseated state, the slow-leak valve 700 is in the open state. At this time, the pneumatic limit device 120 can slowly exhaust air through the slow-leak valve 700 to unlock the first reset structure of the pneumatic limit device 120, wherein the slow-leak valve 700 can control the speed of the pneumatic limit device 120 to release air. Therefore, it takes a delay of a period of time for the pneumatic limit device 120 to completely unlock the first reset structure. After the pneumatic limit device 120 unlocks the first reset structure, the first reset structure can drive the barrel cover 300 to rotate to the closed position. At the same time, the compressed air device 110 returns air through the return air structure so that the automatic cover can be used next time. Through the above-mentioned settings, the automatic cover provided by the present invention can automatically close the barrel cover 300 after the user has finished using the toilet for a period of time, thereby solving the pain point that the user forgets to cover the barrel cover 300 after using the toilet.

[0038] Among them, the automatic cover provided by the present invention realizes automatic closing of the cover through a mechanical structure, does not need to be provided with an electronic structure that is prone to failure in a humid environment, does not need to be configured with a power supply, has a long service life, and has high operational reliability.

[0039] In addition, for the automatic cover provided by the present invention, since the pneumatic limit device 120 does not directly limit the rotation of the barrel cover 300, the function of manually opening and closing the barrel cover 300 does not interfere with the function of automatically closing the barrel cover 300. When the pneumatic limit device 120 limits the first reset structure, the user can still cover or open the barrel cover 300 (or the seat ring 200) at any time as needed, thereby retaining the usage characteristics of the traditional toilet without affecting the experience of traditional users, and at the same time avoiding the situation where the automatic cover structure is damaged when the barrel cover 300 is forcibly opened and closed manually.

[0040] It should be noted that when male users urinate, they usually only open the bucket cover 300 without sitting on the seat ring 200. In order to meet the needs of male users to urinate, the automatic cover provided by the present invention can design the slow-leak valve 700 so that the time for the pneumatic limit device 120 to complete the deflation through the slow-leak valve 700 is long enough, and then the time required for the pneumatic limit device 120 to complete unlocking the first reset structure is long enough, thereby ensuring that the male user has enough time to urinate after the bucket cover 300 is opened, and then the bucket cover 300 is automatically closed. In the specific implementation process, the time for the pneumatic limit device 120 to complete the deflation through the slow-leak valve 700 can be configured to be about 2 minutes, which can basically meet the needs of most male users to urinate.

[0041] Reference Fig.11 , Figure 4 , Figure 7 and Figure 8 In some embodiments, the barrel cover 300 is rotatably installed on the base 100 through the rotating shaft 400, the barrel cover 300 rotates synchronously with the rotating shaft 400, a hook 410 is provided on the rotating shaft 400, and the first reset structure includes a reset elastic member 500, the reset elastic member 500 is arranged between the rotating shaft 400 and the base 100, the reset elastic member 500 is provided with a reset portion 510, the reset portion 510 is located on one side of the hook 410, the reset portion 510 is used to abut and cooperate with the hook 410 to realize the reset of the rotating shaft 400, and the pneumatic limit device 120 can limit the reset of the rotating shaft 400 by limiting the movement of the reset portion 510. Therefore, when the barrel cover 300 rotates from the closed position to the open position, the hook 410 can push the reset part 510 to move so that the reset elastic member 500 is elastically deformed. At this time, the pneumatic limit device 120 can limit the recovery of the reset elastic member 500 by limiting the movement of the reset part 510, thereby preventing the reset elastic member 500 from driving the rotating shaft 400 to reset. After the pneumatic limit device 120 releases the restriction on the reset part 510, the reset elastic member 500 is restored, so that the reset part 510 pushes the hook 410 to drive the rotating shaft 400 to rotate and reset, and then the rotating shaft 400 drives the barrel cover 300 to recover from the open position to the closed position.

[0042] Reference Fig.11In some embodiments, the resetting elastic member 500 includes two torsion spring portions 520, the two torsion spring portions 520 are sleeved on the rotating shaft 400, the resetting portion 510 is connected between the two torsion spring portions 520, and the torsion spring portion 520 has a supporting foot 530 abutting against the base 100. With the above arrangement, the resetting elastic member 500 is easy to install, has a high structural strength, and has a long service life.

[0043] It should be noted that the above-mentioned first reset structure can also be set in other ways. For example, the first reset structure can include a first magnet and a second magnet that cooperate with each other for magnetic attraction. The first magnet is installed on the rotating shaft 400, and the second magnet is installed on the base 100. The pneumatic limit device 120 has a blocking plate, which can block the magnetic force between the first magnet and the second magnet. Therefore, when the pneumatic limit device 120 drives the blocking plate to move between the first magnet and the second magnet, the magnetic force between the first magnet and the second magnet is weakened, so that the first magnet and the second magnet cannot cooperate with each other to drive the cover body to reset, thereby realizing the pneumatic limit device 120 to limit the operation of the first reset structure.

[0044] Reference Figure 5 , Figure 6 and Fig.11 In some embodiments, a rolling part 420 is provided on the rotating shaft 400, and the rolling part 420 is eccentrically arranged relative to the rotating axis of the rotating shaft 400. The rolling part 420 abuts against the compressed air device 110, so that when the barrel cover 300 rotates from the closed position to the open position, the rolling part 420 can drive the compressed air device 110 to exhaust. With the above arrangement, the transmission structure between the barrel cover 300 and the compressed air device 110 is simple, which can ensure that the barrel cover 300 rotates more lightly and flexibly, and reduce the noise during rotation.

[0045] In a specific implementation process, the eccentricity of the rolling portion 420 relative to the rotation axis of the rotating shaft 400 can be designed to be between 5 mm and 30 mm. Of course, the eccentricity can also be designed to be larger.

[0046] Reference Figure 5 , Figure 6 and Fig.11In some embodiments, the compressed air device 110 includes a compression chamber 111, a first piston 112 and a second reset structure 113. The compression chamber 111 is disposed on the base 100. The first piston 112 is slidably disposed in the compression chamber 111. The first piston 112 abuts against the rolling portion 420. The second reset structure 113 is disposed between the first piston 112 and the base 100. The second reset structure 113 is used to drive the first piston 112 to slide toward the direction of the rotating shaft 400. Therefore, when the barrel cover 300 rotates from the closed position to the open position, the barrel cover 300 can drive the compressed air device 110 through the rolling part 420 to discharge the air in the compressed air device 110 through the first flow channel 130 to the pneumatic limit device 120, so as to drive the pneumatic limit device 120 to limit the operation of the first reset structure. After the pneumatic limit device 120 unlocks the first reset structure, the second reset structure 113 can drive the first piston 112 to slide in the direction of the rotating shaft 400, so that the compressed air device 110 returns air through the return air structure, so that the automatic cover can be used next time.

[0047] Reference Figures 4 to 6 In some embodiments, a first guide portion 114 is provided in the compression chamber 111, a second flow channel 1141 is provided in the first guide portion 114, and the first piston 112 is slidably mounted on the first guide portion 114. The above arrangement can make the first piston 112 move more smoothly.

[0048] Reference Figure 5 and Figure 6 , wherein the one-way valve 600 is arranged in the second flow channel 1141, the compression chamber 111 is connected to the first flow channel 130 through the second flow channel 1141, and the one-way valve 600 is arranged in the second flow channel 1141, and the second flow channel 1141 is located on the inner side of the compression chamber 111, thereby avoiding air leakage at the one-way valve 600.

[0049] Reference Figure 5 , Fig.11 In order to facilitate the installation of the one-way valve 600, an installation port 1142 is opened on the side wall of the compression chamber 111 away from the first guide portion 114, the second flow channel 1141 is connected to the installation port 1142, a connector 800 is installed at the installation port 1142, the second flow channel 1141 is connected to the first flow channel 130 through the connector 800, and the connector 800 cooperates with the inner wall of the second flow channel 1141 to clamp and fix the one-way valve 600.

[0050] In some embodiments, the air return structure may include an air return valve, which is arranged on the side wall of the compression chamber 111. When the first piston 112 slides toward the rotating shaft 400, the air return valve opens, allowing external air to enter the compression chamber 111, thereby realizing air return of the compressed air device 110.

[0051] Reference Figure 5and Figure 6 In some embodiments, the first piston 112 includes a pushing member 1121 and a sealing plug 1122, the sealing plug 1122 is sleeved on the pushing member 1121, and the sealing plug 1122 is slidably sealed with the inner wall of the compression chamber 111, wherein the return air structure includes a return air gap 1123 between the sealing plug 1122 and the pushing member 1121, the return air gap 1123 is connected to the outer environment of the compression chamber 111, and the sealing plug 1122 can slide relative to the pushing member 1121 to open and close the return air gap 1123. When the barrel cover 300 rotates from the closed position to the open position, the pusher 1121 can drive the sealing plug 1122 to move in the direction away from the rotating shaft 400. At this time, the sealing plug 1122 slides relative to the pusher 1121 to the position of closing the return air gap 1123, so that the sealing plug 1122 and the pusher 1121 are sealed, thereby, the pusher 1121 and the sealing plug 1122 can discharge the exhaust gas in the compression chamber 111; when the second reset structure 113 drives the pusher 1121 to drive the sealing plug 1122 to move toward the position close to the rotating shaft 400, the sealing plug 1122 can slide relative to the pusher 1121 to the position of opening the return air gap 1123, thereby, the compressed air device 110 can return air through the return air gap 1123. With the above arrangement, the compressed air device 110 can return air while realizing the detachable and replaceable sealing plug 1122, without the need to configure an additional return air valve, thereby reducing costs.

[0052] In some embodiments, the inner diameter of the compression chamber 111 may be designed to be between 10 mm and 50 mm. Of course, the inner diameter of the compression chamber 111 may also be designed to be larger.

[0053] It should be noted that the above-mentioned compressed air device 110 can also be arranged in other ways. For example, the compressed air device 110 may include an airbag and a compression member. The compression member is slidably installed on the base 100. The compression member is transmission-coordinated with the rolling part 420. The airbag is connected to the pneumatic limit device 120 through the first flow channel 130. The return air structure includes a one-way return air valve. Therefore, when the barrel cover 300 rotates from the closed position to the open position, the compression member can compress the airbag to discharge the air into the pneumatic limit device 120. When the barrel cover 300 is restored from the open position to the closed position, the airbag returns air through the one-way return air valve to restore its original state.

[0054] Reference Figure 4 , Figure 7 and Figure 8In some embodiments, the pneumatic limit device 120 includes an air storage chamber 121, a second piston 122 and a third reset structure 123. One end of the second piston 122 is slidably disposed in the air storage chamber 121, and the other end of the second piston 122 is used to abut against the reset portion 510 to limit the movement of the reset portion 510. The third reset structure 123 is used to drive the second piston 122 to slide in a direction away from the rotating shaft 400. Therefore, when the compressed air device 110 discharges air into the air storage chamber 121, the second piston 122 can be driven to slide in a direction close to the rotating shaft 400, so that the second piston 122 abuts against the reset portion 510 to limit the movement of the reset portion 510, thereby limiting the operation of the first reset structure. At the same time, the third reset structure 123 stores energy; when the slow-leak valve 700 is opened, the air storage chamber 121 slowly releases air, so that the third reset structure 123 can only slowly drive the second piston 122 to slide in a direction away from the rotating shaft 400, thereby realizing the delayed unlocking of the first limit structure by the pneumatic limit device 120. Through the above arrangement, the pneumatic limiting device 120 can be in the form of a cylinder, which has a simple structure and reliable operation.

[0055] Reference Figure 7 and Figure 8 In some embodiments, a second guide portion 124 is provided in the air storage chamber 121, and the second piston 122 is slidably mounted on the second guide portion 124, so that the second piston 122 can slide more smoothly.

[0056] Reference Figure 7 and Fig.11 In the specific implementation process, three guide columns 1221 are provided at one end of the second piston 122 close to the rotating shaft 400, and a guide hole 1211 is opened on one side wall of the air storage chamber 121 close to the rotating shaft 400. The three guide columns 1221 are correspondingly inserted into the guide hole 1211 one by one. Therefore, through the cooperation between the guide columns 1221 and the guide hole 1211, the second piston 122 is guided to slide, so that the second piston 122 slides more smoothly, the wear of the second piston 122 is reduced, and at the same time, the rotation of the second piston 122 is restricted.

[0057] In some embodiments, the inner diameter of the air storage cavity 121 can be designed to be between 10 mm and 50 mm. Of course, the inner diameter of the air storage cavity 121 can also be designed to be larger.

[0058] It is conceivable that the above-mentioned pneumatic limit device 120 can also be set up in other ways. For example, the pneumatic limit device 120 may include an airbag, a limiting part is installed on the airbag, the limiting part is slidably installed on the base 100, the limiting part is abutted against the reset part 510, the airbag is connected to the compressed air device 110 through the first flow channel 130, and the airbag is equipped with the above-mentioned slow-leak valve 700.

[0059] Reference Figure 4 , Fig. 9 , Fig.10 In some embodiments, the slow-leak valve 700 includes a valve seat 710, an elastic wave 730 and a fourth reset structure 740. The valve seat 710 is installed on the base 100. A leakage flow channel 711 is provided in the valve seat 710. The leakage flow channel 711 is communicated with the pneumatic limit device 120. The leakage flow channel 711 has a leakage hole 712. A sealing member 720 is provided at the leakage hole 712. The elastic wave 730 is arranged opposite to the leakage hole 712. The fourth reset structure 740 is arranged between the elastic wave 730 and the valve seat 710. The seat ring 200 is in a seated state. When the seat ring 200 is in the state of not being seated, the seat ring 200 is pressed down, and the seat ring 200 can drive the elastic wave 730 to abut against the sealing member 720 to close the air leakage hole 712. At this time, the elastic wave 730 and the sealing member 720 are closely matched to effectively prevent the slow leakage valve 700 from leaking. When the seat ring 200 is in the state of not being seated, the seat ring 200 is not pressed down, and the fourth reset structure 740 can drive the elastic wave 730 to move away from the sealing member 720 to open the air leakage hole 712. At this time, the compressed air in the pneumatic limit device 120 can be slowly leaked from the air leakage hole 712 of the slow leakage valve 700. Among them, by controlling the opening of the air leakage hole 712, the speed of the slow leakage valve 700 can be controlled. It is not difficult to imagine that when the barrel cover 300 is in the closed position, under the action of the first reset structure, the barrel cover 300 covers the seat ring 200 and presses the seat ring 200. At this time, the seat ring 200 closes the slow leakage valve 700.

[0060] It is conceivable that, in other embodiments, the above-mentioned slow-leak valve 700 may also be set in other ways. For example, the slow-leak valve 700 may be set as a ball valve, wherein the valve core of the ball valve is transmission-connected to the seat ring 200, whereby, when the seat ring 200 enters the seated state from the unseated state, the seat ring 200 can drive the valve core of the ball valve to rotate, thereby closing the ball valve; when the seat ring 200 leaves the seated state, the seat ring 200 can drive the valve core of the ball valve to rotate to open the ball valve.

[0061] In the specific implementation process, the second reset structure 113 can be configured as a compression spring, or the second reset structure 113 can be configured as two magnets that cooperate with each other. The third reset structure 123 and the fourth reset structure 740 can refer to the configuration of the second reset structure 113.

[0062] The toilet according to the second aspect of the present invention includes the automatic cover. By adopting the automatic cover, the toilet can automatically close the lid 300 after the user has finished using the toilet for a period of time, solving the pain point of the user forgetting to cover the lid 300 after using the toilet. In addition, the user can still cover or open the lid 300 (or the seat 200) at any time as needed, thereby retaining the use characteristics of the traditional toilet and not affecting the experience of traditional users.

[0063] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0064] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An automatic cover, characterized in that: include: The base (100) is provided with a compressed air device (110) and a pneumatic limit device (120); a first flow channel (130) is connected between the compressed air device (110) and the pneumatic limit device (120); a one-way valve (600) is provided between the compressed air device (110) and the pneumatic limit device (120); the one-way valve (600) is used to limit the flow of air from the pneumatic limit device (120) to the compressed air device (110); the compressed air device (110) is provided with an air return structure; and the pneumatic limit device (120) is provided with a slow-leak valve (700); A seat ring (200) is rotatably mounted on the base (100); A barrel cover (300) is rotatably mounted on the base (100), the barrel cover (300) having an open position and a closed position, the barrel cover (300) is in transmission cooperation with the compressed air device (110), and a first reset structure cooperating with the pneumatic limit device (120) is provided between the barrel cover (300) and the base (100); When the barrel cover (300) is located in the closed position, the barrel cover (300) is closed to the seat ring (200); when the barrel cover (300) rotates from the closed position to the open position, the barrel cover (300) drives the compressed air device (110) to discharge the air in the compressed air device (110) through the first flow channel (130) to the pneumatic limit device (120), so as to drive the pneumatic limit device (120) to limit the operation of the first reset structure; when the barrel cover (300) is in the open position, when the seat ring (200) is in a seated state, the seat ring (200) ) can close the slow-leak valve (700), and when the seat ring (200) is in a non-seated state, the pneumatic limit device (120) can exhaust air through the slow-leak valve (700) so that the pneumatic limit device (120) unlocks the first reset structure, wherein the slow-leak valve (700) can control the speed of the pneumatic limit device (120) releasing air; after the pneumatic limit device (120) unlocks the first reset structure, the first reset structure can drive the barrel cover (300) to rotate from the open position to the closed position, and the compressed air device (110) returns air through the return air structure.

2. The automatic cover according to claim 1, characterized in that: The barrel cover (300) is rotatably mounted on the base (100) via a rotating shaft (400); the barrel cover (300) rotates synchronously with the rotating shaft (400); a hook (410) is provided on the rotating shaft (400); the first reset structure comprises a reset elastic member (500); the reset elastic member (500) is provided between the rotating shaft (400) and the base (100); the reset elastic member (500) is provided with a reset portion (510); the reset portion (510) is located on one side of the hook (410); the reset portion (510) is used to abut against the hook (410) to achieve the reset of the rotating shaft (400); the pneumatic limit device (120) can limit the reset of the rotating shaft (400) by limiting the movement of the reset portion (510).

3. The automatic cover according to claim 2, characterized in that: The resetting elastic member (500) comprises two torsion spring parts (520), the two torsion spring parts (520) are sleeved on the rotating shaft (400), the resetting part (510) is connected between the two torsion spring parts (520), and the torsion spring part (520) has a supporting foot (530) abutting against the base (100).

4. The automatic cover according to claim 1, characterized in that: The barrel cover (300) is rotatably mounted on the base (100) via a rotating shaft (400). The barrel cover (300) rotates synchronously with the rotating shaft (400). A rolling portion (420) is provided on the rotating shaft (400). The rolling portion (420) is eccentrically arranged relative to the rotation axis of the rotating shaft (400). The rolling portion (420) is abutted against the compressed air device (110). When the barrel cover (300) rotates from the closed position to the open position, the rolling portion (420) can drive the compressed air device (110) to exhaust air.

5. The automatic cover according to claim 4, characterized in that: The compressed air device (110) comprises a compression chamber (111), a first piston (112) and a second reset structure (113); the compression chamber (111) is arranged on the base (100); the first piston (112) is slidably arranged in the compression chamber (111); the first piston (112) is abutted against the rolling portion (420); the second reset structure (113) is arranged between the first piston (112) and the base (100); the second reset structure (113) is used to drive the first piston (112) to slide in the direction of the rotating shaft (400).

6. The automatic cover according to claim 5, characterized in that: A first guide portion (114) is provided in the compression chamber (111), a second flow channel (1141) is provided in the first guide portion (114), the first piston (112) is slidably mounted on the first guide portion (114), the one-way valve (600) is arranged in the second flow channel (1141), and the compression chamber (111) is connected to the first flow channel (130) via the second flow channel (1141).

7. The automatic cover according to claim 5, characterized in that: The first piston (112) includes a pushing member (1121) and a sealing plug (1122), wherein the sealing plug (1122) is sleeved on the pushing member (1121), and a sliding seal is formed between the sealing plug (1122) and the inner wall of the compression chamber (111), wherein the air return structure includes an air return gap (1123) between the sealing plug (1122) and the pushing member (1121), and the sealing plug (1122) can slide relative to the pushing member (1121) to open and close the air return gap (1123).

8. The automatic cover according to claim 2, characterized in that: The pneumatic limiting device (120) comprises an air storage chamber (121), a second piston (122) and a third reset structure (123); one end of the second piston (122) is slidably disposed in the air storage chamber (121); the other end of the second piston (122) is used to abut against the reset portion (510) to limit the movement of the reset portion (510); and the third reset structure (123) is used to drive the second piston (122) to slide in a direction away from the rotating shaft (400).

9. The automatic cover according to claim 1, characterized in that: The slow-leak valve (700) comprises a valve seat (710), an elastic wave (730) and a fourth reset structure (740); the valve seat (710) is mounted on the base (100); a leakage flow channel (711) is arranged in the valve seat (710); the leakage flow channel (711) is communicated with the pneumatic limit device (120); the leakage flow channel (711) has a leakage hole (712); a sealing member (720) is arranged at the leakage hole (712); the elastic wave (730) is arranged opposite to the leakage hole (712); The fourth reset structure (740) is arranged between the elastic wave (730) and the valve seat (710), wherein, when the seat ring (200) is in a seated state, the seat ring (200) drives the elastic wave (730) to abut against the sealing member (720) to close the air leakage hole (712), and when the seat ring (200) is in a non-seated state, the fourth reset structure (740) can drive the elastic wave (730) to move away from the sealing member (720) to open the air leakage hole (712).

10. A toilet, characterized in that: It comprises an automatic cover as described in any one of claims 1 to 9.

Images