Flip cover mechanism and closestool

Abstract

The utility model relates to a cover turning mechanism and a closestool. The cover turning mechanism comprises a seat body, a cover body, a first driving element, a connecting piece and a connecting seat, the connecting piece is connected to the cover body and the connecting seat, and the first driving element is arranged on the seat body and can drive the connecting seat to rotate relative to the seat body; the connecting seat comprises a rotating part, a connecting part and a buffering part, the connecting part is connected to the rotating part and the connecting piece, the buffering part is arranged on the outer circumferential surface of the rotating part, the cover turning mechanism further comprises a first flexible element arranged on the seat body, and in the process that the cover body is switched from the closed state to the open state, when the rotating angle of the cover body is smaller than a second preset angle, the buffering part is arranged on the outer circumferential surface of the rotating part. The buffer part and the first flexible element are spaced, when the rotation angle of the cover body is larger than or equal to a second preset angle, the buffer part extrudes the first flexible element, and the second preset angle is smaller than the first preset angle. According to the flip mechanism, vibration and noise generated by collision between the cover body and other parts when the cover body reaches the open state can be reduced, and the use experience of the flip mechanism is improved.

Description

Technical Field

[0001] The present application relates to the field of flap technology, and in particular to a flap mechanism and a toilet. Background Art

[0002] Traditional toilets are usually equipped with a flip mechanism, which is arranged on the toilet seat. The cover plate and seat ring of the flip mechanism can rotate relative to the toilet seat and cover the toilet bowl of the toilet seat, or leave the toilet bowl. Among them, the cover plate usually uses a gear box to provide power to achieve the flipping of the cover plate relative to the toilet seat. When it flips to the required angle, the gear box stops moving and the cover plate is restricted from further flipping by a limit structure. However, in the traditional flip mechanism, when the limit structure restricts the cover plate from continuing to flip, it usually generates a reaction force on the cover plate, causing the cover plate to shake and generate vibration and noise, affecting the user experience. Summary of the invention

[0003] Based on this, it is necessary to provide a flip mechanism and a toilet to address the problem that the cover plate is prone to shaking when it stops flipping.

[0004] A flap mechanism for a toilet, the flap mechanism comprising a seat, a cover, a first driving element, a connecting member and a connecting seat, the connecting seat being connected to the first driving element, the connecting member being connected to the cover and the connecting seat, the first driving element being arranged on the seat and being capable of driving the connecting seat to rotate relative to the seat, so as to drive the cover to rotate relative to the seat by a first preset angle to switch from a closed state to an open state;

[0005] The connecting seat includes a rotating part, a connecting part and a buffer part, the rotating part is connected to the first driving element, the connecting part is connected to the rotating part and the connecting member, the buffer part is arranged on the outer peripheral surface of the rotating part, and the flip cover mechanism also includes a first flexible element arranged on the seat body. During the process of switching the cover body from a closed state to an open state, when the rotation angle of the cover body is less than a second preset angle, the buffer part is spaced apart from the first flexible element, and when the rotation angle of the cover body is greater than or equal to the second preset angle, the buffer part squeezes the first flexible element, and the second preset angle is less than the first preset angle.

[0006] In the above flip mechanism, when the cover body switches from the closed state to the open state, when the rotation angle of the cover body is between the second preset angle and the first preset angle, the buffer portion on the connecting seat can squeeze the first flexible element, thereby playing a buffering role in the rotation speed of the cover body relative to the seat body, reducing the rotation speed of the cover body when it reaches the open state, thereby reducing the impact force of the cover body with other components, effectively reducing the vibration and noise generated by the collision of the cover body with other components when it reaches the open state, and improving the user experience of the flip mechanism. At the same time, the flip mechanism achieves a buffering effect with the help of the buffer portion of the connecting seat and the first flexible element on the seat body. The buffer mechanism has a simple structure, low setting cost, and small space occupation, which is conducive to reducing the preparation cost of the flip mechanism and compressing the volume of the flip mechanism.

[0007] In one embodiment, the buffer portion includes a first transition surface, a second transition surface and a third transition surface, the second transition surface is connected to the first transition surface and the third transition surface, the first transition surface and the third transition surface are connected to the outer peripheral surface of the rotating portion, and in the direction in which the second transition surface points to the rotating portion, the first transition surface and the third transition surface are inclined toward a side away from the second transition surface.

[0008] In one embodiment, the first transition surface and the second transition surface, and the second transition surface and the third transition surface are connected by arc chamfers;

[0009] And / or, the first flexible element is provided with a buffer groove facing the rotating part, and a side surface of the buffer groove is arc-shaped.

[0010] In one embodiment, the flip cover mechanism also includes a flexible buffer member arranged on the seat body, the flexible buffer member is provided with a limiting surface facing the connecting part, and the limiting surface is inclined to the seat body. When the cover body is in an open state, the surface of the connecting part facing the first flexible element abuts against the limiting surface.

[0011] In one embodiment, the flexible buffer member includes a buffer body and a buffer protrusion, the limiting surface is formed on the buffer body, the buffer protrusion is protruded from the limiting surface, and the radial dimension of the buffer protrusion is smaller than the radial dimension of the buffer body.

[0012] In one embodiment, the flexible buffer is integrally formed with the first flexible element; and / or,

[0013] The flip cover mechanism further comprises a rigid limiting member, wherein the rigid limiting member is embedded in the buffer body, and an end surface of the rigid limiting member is exposed on the limiting surface.

[0014] In one embodiment, the flip cover mechanism further comprises a seat ring and a second flexible element provided on the seat body, the seat ring comprises a body and a rotating structure connected to the body, the rotating structure is rotatably connected to the seat body, the seat ring can be rotated relative to the seat body by a third preset angle to switch from a closed state to an open state, a buffer portion is provided on an outer circumferential surface of the rotating structure, and a radial dimension of the outer circumferential surface of the rotating structure at the buffer portion is greater than a radial dimension of other portions;

[0015] During the process of switching the seat ring from a closed state to an open state, when the rotation angle of the seat ring is greater than or equal to a fourth preset angle, the buffer portion is opposite to and squeezes the second flexible element, and when the rotation angle of the seat ring is less than the fourth preset angle, the remaining portion of the outer peripheral surface of the rotating structure is opposite to and spaced from the second flexible element, and the fourth preset angle is less than the third preset angle.

[0016] In one embodiment, the seat body is provided with a rotation groove, the rotation structure is rotatably arranged in the rotation groove, the flip cover mechanism further comprises a second driving element arranged on the seat body, the second driving element is located outside the rotation groove, and the output shaft of the second driving element passes through the side wall of the rotation groove and is connected to the rotation structure;

[0017] The bottom wall of the rotating groove is provided with a receiving groove, the second flexible element comprises a main body and a fixing part connected to the main body, the main body is at least partially embedded in the receiving groove, and the fixing part passes through the seat body.

[0018] In one embodiment, the flip cover mechanism also includes a limiting structure arranged in the rotating groove, and the rotating structure is also provided with a sliding groove along the circumferential side. The limiting structure is at least partially arranged in the sliding groove, and when the seat ring is in an open state, the limiting structure abuts against the side wall of the sliding groove.

[0019] A toilet comprises a toilet seat and a flip cover mechanism as described in any one of the above embodiments, wherein the toilet seat is provided with a toilet bowl, the flip cover mechanism is arranged on the toilet seat, and when the cover body is in a covering state, the cover body covers the toilet bowl. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 is a schematic structural diagram of a flip cover mechanism in some embodiments when the cover body is in an open state and the seat ring is in a closed state.

[0021] FIG. 2 is a schematic diagram of the structure of the cover and the seat ring in an open state in some embodiments.

[0022] FIG. 3 is an exploded schematic diagram of some components of the flip mechanism in some embodiments.

[0023] FIG. 4 is a cross-sectional schematic diagram of the buffer portion squeezing the first flexible element in some embodiments.

[0024] FIG. 5 is a schematic diagram of the structure in which the first flexible element and the flexible buffer are arranged on the seat body in some embodiments.

[0025] FIG. 6 is a schematic diagram of the structure of the flip cover mechanism on the side of the base body facing away from the cover body in some embodiments.

[0026] FIG. 7 is a partial enlarged schematic diagram of the circular frame area of ​​the flip mechanism shown in FIG. 6 .

[0027] FIG. 8 is a schematic structural diagram of the flip cover mechanism shown in FIG. 2 from another angle.

[0028] FIG. 9 is a schematic cross-sectional view of a rotating structure and a second flexible element in some embodiments.

[0029] FIG. 10 is a partial enlarged schematic diagram of the circular frame area of ​​the flip mechanism shown in FIG. 8 in some embodiments.

[0030] Reference numerals:

[0031] 10. flip cover mechanism; 11. seat body; 111. through hole; 112. rotating groove; 113. containing groove; 12. cover body; 13. seat ring; 131. body; 132. rotating structure; 1321. buffer part; 1322. slide groove; 14. first driving element; 15. connecting member; 151. first mounting part; 152. second mounting part; 153. connecting rod; 16. connecting seat; 161. rotating part; 162. connecting part; 163. buffer part; 1631, first transition surface; 1632, second transition surface; 1633, third transition surface; 17, first flexible element; 171, buffer groove; 18, flexible buffer; 181, buffer body; 1811, limiting surface; 182, buffer protrusion; 19, rigid limiting member; 21, first mounting seat; 22, second mounting seat; 23, second flexible element; 231, main body; 232, fixing part; 24, second driving element; 25, limiting structure. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 cannot be understood as a limitation on the present application.

[0034] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0038] Referring to FIG. 1 and FIG. 2 , FIG. 1 is a schematic diagram of the structure of the seat ring 13 of the flip mechanism 10 in some embodiments in a closed state, and FIG. 2 is a schematic diagram of the structure of the seat ring 13 of the flip mechanism 10 in some embodiments in an open state. The flip mechanism 10 provided in the present application can be used in a toilet, and the toilet can also include a toilet seat and a water tank, the toilet seat is provided with a toilet bowl, the water tank is provided in the toilet seat, and the water stored in the water tank can be used to flush the toilet bowl. The flip mechanism 10 can be arranged above the accommodating space of the toilet seat corresponding to the water tank, and the flip mechanism 10 includes a seat body 11, a cover body 12 and a seat ring 13, the seat body 11 is arranged on the toilet seat, and the cover body 12 and the seat ring 13 are both rotatably connected to the seat body 11. The cover 12 and the seat 13 both have a covering state and an open state. When the seat 13 is in the covering state, the seat 13 can rotate relative to the seat 11 to cover the toilet bowl for the user to sit on. When the seat 13 is in the open state, the seat 13 is away from the toilet bowl and fixed relative to the seat 11. When the cover 12 is in the covering state, the cover 12 covers the seat 13 to cover the toilet bowl to prevent odor leakage or affect the appearance. When the cover 12 is in the open state, the cover 12 is away from the toilet bowl and fixed relative to the seat 11. In some embodiments, the covering state and the open state of the cover 12 can be two extreme positions of the cover 12 rotating relative to the seat 11, and the covering state and the open state of the seat 13 can be two extreme positions of the seat 13 rotating relative to the seat 11.

[0039] As shown in combination with FIG. 3 and FIG. 4 , in some embodiments, the flip cover mechanism 10 further includes a first driving element 14, a connecting member 15, and a connecting seat 16, wherein the connecting seat 16 is connected to the first driving element 14, and the connecting member 15 is connected to the cover body 12 and the connecting seat 16. The first driving element 14 is disposed on the base body 11, and can drive the connecting seat 16 to rotate relative to the base body 11, thereby driving the cover body 12 to rotate relative to the base body 11 through the connecting member 15. Driven by the first driving element 14, the cover body 12 can rotate relative to the base body 11 by a first preset angle to switch from the closed state to the open state, or from the open state to the closed state.

[0040] Further, in some embodiments, the connection seat 16 includes a rotating portion 161, a connecting portion 162 and a buffer portion 163, the rotating portion 161 is connected to the first driving element 14, the connecting portion 162 is connected to the rotating portion 161 and the connecting member 15, when the output shaft of the first driving element 14 rotates, the rotating portion 161 can be driven to rotate relative to the seat body 11, thereby driving the cover body 12 to rotate relative to the seat body 11 through the connecting portion 162 and the connecting member 15. The buffer portion 163 is provided on the outer circumference of the rotating portion 161, and the flip cover mechanism 10 also includes a first flexible element 17 provided on the seat body 11, and the first flexible element 17 is located between the rotating portion 161 and the seat body 11. During the process of switching the cover 12 from the closed state to the open state, when the rotation angle of the cover 12 is less than the second preset angle, the buffer portion 163 is spaced from the first flexible element 17, and when the rotation angle of the cover 12 is greater than or equal to the second preset angle, for example, between the second preset angle and the first preset angle, the buffer portion 163 contacts and squeezes the first flexible element 17. The second preset angle is smaller than the first preset angle.

[0041] It can be understood that the rotating portion 161 is spaced from the first flexible element 17, and in the process of switching the cover body 12 from the closed state to the open state, when the rotation angle of the cover body 12 is less than the second preset angle, the portion of the outer circumferential surface of the rotating portion 161 where the buffer portion 163 is not provided is opposite to the first flexible element 17, and the buffer portion 163 does not contact the first flexible element 17. When the rotation angle of the cover body 12 is greater than or equal to the second preset angle, at least part of the portion of the outer circumferential surface of the rotating portion 161 where the buffer portion 163 is provided is opposite to the first flexible element 17, and the buffer portion 163 contacts the first flexible element 17, and as the rotating portion 161 continues to rotate, the buffer portion 163 squeezes the first flexible element 17 to decelerate the rotation of the cover body 12 relative to the seat body 11.

[0042] In the above flip mechanism 10, when the cover body 12 switches from the closed state to the open state, when the rotation angle of the cover body 12 is between the second preset angle and the first preset angle, the buffer portion 163 on the connection seat 16 can squeeze the first flexible element 17, thereby playing a buffering role on the rotation speed of the cover body 12 relative to the seat body 11, reducing the rotation speed of the cover body 12 when it reaches the open state, thereby reducing the impact force of the cover body 12 with other components, effectively reducing the vibration and noise generated by the collision of the cover body 12 with other components when it reaches the open state, and improving the user experience of the flip mechanism 10. At the same time, the flip mechanism 10 achieves a buffering effect with the help of the buffer portion 163 of the connection seat 16 and the first flexible element 17 on the seat body 11. The buffer mechanism has a simple structure, low setting cost, and small space occupation, which is conducive to reducing the preparation cost of the flip mechanism 10 and compressing the volume of the flip mechanism 10.

[0043] Of course, the specific settings of the first preset angle and the second preset angle are not limited, and can be set according to the structure of the flip mechanism 10 and the buffering requirements, as long as the setting position and shape of the buffer part 163 on the rotating part 161 are designed so that when the cover body 12 rotates to the second preset angle, the buffer part 163 can contact with the first flexible element 17 to play a buffering role. For example, the first preset angle can be any obtuse angle, and the second preset angle can be any angle between 0 and the first preset angle. When the rotation speed of the cover body 12 is low, the difference between the second preset angle and the first preset angle can be small. When the rotation speed of the cover body 12 is high, the difference between the second preset angle and the first preset angle can be large, so as to decelerate the cover body 12 in a longer rotation stroke.

[0044] As shown in FIG4 , in some embodiments, the buffer portion 163 includes a first transition surface 1631, a second transition surface 1632, and a third transition surface 1633, the second transition surface 1632 is connected to the first transition surface 1631 and the third transition surface 1633, and the first transition surface 1631 and the third transition surface 1633 are connected to the outer peripheral surface of the rotating portion 161. In the direction in which the second transition surface 1632 points to the rotating portion 161, the first transition surface 1631 and the third transition surface 1633 are inclined toward a side away from the second transition surface 1632. In other words, in the direction in which the second transition surface 1632 points to the rotating portion 161, the distance between the first transition surface 1631 and the third transition surface 1633 gradually increases. Therefore, the radial dimension of the buffer portion 163 in the rotating portion 161 gradually increases toward the second transition surface 1632, which can adapt to the relative rotation process of the connecting seat 16 and the first flexible element 17, so that when the buffer portion 163 contacts the first flexible element 17, the squeezing effect on the first flexible element 17 gradually increases, which is not easy to damage the buffer portion 163 and the first flexible element 17, and can also play an effective buffering effect.

[0045] In some embodiments, the first transition surface 1631 and the second transition surface 1632, as well as the second transition surface 1632 and the third transition surface 1633 are connected by arc chamfers, and the first transition surface 1631, the second transition surface 1632 and / or the third transition surface 1633 can all be arcuate surfaces, which can make the surface of the buffer portion 163 smoothly transition, and the buffer portion 163 and the first flexible element 17 are not easily damaged during the mutual extrusion with the first flexible element 17. In some embodiments, the first flexible element 17 is provided with a buffer groove 171 facing the rotating portion 161, and the side of the buffer groove 171 is arc-shaped. Therefore, during the rotation of the rotating portion 161 relative to the seat body 11, the buffer portion 163 can smoothly enter the buffer groove 171 along the arc of the side of the buffer groove 171, and be mutually extruded with the bottom surface of the buffer groove 171, which is also conducive to reducing the risk of damage to the buffer portion 163 and the first flexible element 17, and at the same time, it is conducive to compressing the occupied space of the connecting seat 16 and the first flexible element 17 as a whole.

[0046] As shown in combination with FIG. 4 and FIG. 5 , in some embodiments, the flip cover mechanism 10 further includes a flexible buffer 18 disposed on the base 11, and the flexible buffer 18 is provided with a limiting surface 1811 facing the connection portion 162, and the limiting surface 1811 is inclined to the base 11, for example, inclined to the extension plane of the first flexible element 17. When the cover 12 is in the open state, the surface of the connection portion 162 facing the first flexible element 17 abuts against the limiting surface 1811. Thus, the flexible buffer 18 can provide a buffering and limiting effect on the cover 12, so that the cover 12 stops rotating. At the same time, when the surface of the connection portion 162 facing the first flexible element 17 rotates to the limiting surface 1811, it can be substantially parallel to the limiting surface 1811 and contact the entire surface of the limiting surface 1811, thereby enhancing the buffering and limiting effect of the flexible buffer 18 on the connection portion 162, and further reducing the vibration and noise generated when the cover 12 stops rotating.

[0047] In some embodiments, the flexible buffer 18 includes a buffer body 181 and a buffer protrusion 182, a limiting surface 1811 is formed on the side of the buffer body 181 facing the connector 15, the buffer protrusion 182 is convexly arranged on the limiting surface 1811, and the radial dimension of the buffer protrusion 182 is smaller than the radial dimension of the buffer body 181. Therefore, when the cover body 12 rotates relative to the seat body 11 after being buffered by the buffer portion 163 and the first flexible element 17, the connecting portion 162 can first squeeze the buffer protrusion 182 to achieve secondary buffering, and then contact the limiting surface 1811 to achieve tertiary buffering and limiting, and effectively reduce the vibration and noise generated when the cover body 12 reaches the closed state through the gradual buffering process.

[0048] In some embodiments, the flexible buffer 18 is disposed at the end of the first flexible element 17, and the flexible buffer 18 is integrally formed with the first flexible element 17. For example, the flexible buffer 18 and the first flexible element 17 are integrally formed of any suitable flexible material such as rubber. Thus, the relative accuracy of the installation of the flexible buffer 18 and the first flexible element 17 can be improved, and the installation and maintenance of the flexible buffer 18 and the first flexible element 17 are facilitated.

[0049] In some embodiments, the flip cover mechanism 10 further includes a rigid stopper 19, which is embedded in the buffer body 181, and the end surface of the rigid stopper 19 is exposed on the stopper surface 1811, and the end surface of the rigid stopper 19 can be flush with the stopper surface 1811, or lower than the stopper surface 1811. The material of the rigid stopper 19 includes but is not limited to any applicable rigid material such as plastic and metal. The rigid stopper 19 can improve the structural strength of the flexible buffer 18, prevent the impact of the connection part 162 from causing damage to the flexible buffer 18, and can also play the final limit guarantee, ensuring that the connection part 162 can stop rotating and maintain in an open state after being buffered by the flexible buffer 18.

[0050] As shown in FIG. 3 , FIG. 6 and FIG. 7 , in some embodiments, the first driving element 14 , the first flexible element 17 , the flexible buffer 18 and the connecting seat 16 are all arranged on the side of the seat 11 facing away from the cover 12 , so that when the flip cover mechanism 10 is arranged on the toilet, it will not be exposed on the toilet, thereby improving the appearance integrity of the toilet. The first driving element 14 includes but is not limited to any applicable driving element such as an electric motor, a motor, etc., the side of the seat 11 facing away from the cover 12 may be provided with a first mounting seat 21 and a second mounting seat 22, the first driving element 14 is installed on the first mounting seat 21, the rotating part 161 is arranged between the first mounting seat 21 and the second mounting seat 22, the output shaft of the first driving element 14 is inserted into one end of the rotating part 161, and the other end of the rotating part 161 is rotatably arranged on the second mounting seat 22.

[0051] In some embodiments, the connecting member 15 includes a connecting rod 153 and a first mounting portion 151 and a second mounting portion 152 provided at both ends of the connecting rod 153. The first mounting portion 151 is inserted into a slot provided in the cover body 12, and the second mounting portion 152 is inserted into a slot provided in the connecting portion 162. The base body 11 may be provided with a through hole 111 corresponding to the connecting portion 162, and the connecting rod 153 passes through the through hole 111. The connecting rod 153 may be an arc-shaped rod to adapt to the relative rotation of the cover body 12 and the base body 11 to avoid interference with other components.

[0052] Referring to FIG8 and FIG9, in some embodiments, the flip cover mechanism 10 further includes a second flexible element 23 disposed on the seat body 11, the seat ring 13 includes a body 131 and a rotating structure 132 connected to the body 131, the rotating structure 132 is rotatably connected to the seat body 11, and the seat ring 13 can be rotated relative to the seat body 11 by a third preset angle to switch from the closed state to the open state. A buffer portion 1321 is provided on the outer circumference of the rotating structure 132, and the radial dimension of the outer circumference of the rotating structure 132 at the buffer portion 1321 is greater than the radial dimension of the remaining portions. In the process of switching the seat ring 13 from the closed state to the open state, when the rotation angle of the seat ring 13 is greater than or equal to the fourth preset angle, the buffer portion 1321 of the rotating structure 132 is opposite to the second flexible element 23 and squeezes each other, and when the rotation angle of the seat ring 13 is less than the fourth preset angle, the remaining portions of the outer circumference of the rotating structure 132 are opposite to the second flexible element 23 and are spaced from each other, and the fourth preset angle is less than the third preset angle.

[0053] It can be understood that the radial dimension of the remaining parts of the outer circumference of the rotating structure 132 is smaller than the radial dimension of the buffer part 1321. In other words, the buffer part 1321 is more prominent relative to the remaining parts. By designing the shape of the outer circumference of the rotating structure 132, when the rotation angle of the seat ring 13 is less than the fourth preset angle, the remaining parts of the outer circumference of the rotating structure 132 are opposite to the second flexible element 23 and will not contact the second flexible element 23. When the rotation angle of the seat ring 13 is between the fourth preset angle and the third preset angle, the buffer part 1321 of the rotating structure 132 contacts the second flexible element 23, and as the seat ring 13 rotates, the buffer part 1321 and the second flexible element 23 squeeze each other, which can decelerate the rotation of the seat ring 13 and reduce the vibration and noise generated when the seat ring 13 rotates to the open state. The specific settings of the fourth preset angle and the third preset angle are not limited, and can be designed with reference to the structure and buffer requirements of the flip cover mechanism 10. Specifically, it can be obtained by referring to the settings of the first preset angle and the second preset angle, which will not be repeated here.

[0054] In some embodiments, the surface of the buffer portion 1321 can be an arc-shaped surface, and the radial dimension of the buffer portion 1321 can gradually increase toward the middle, so that during the rotation of the seat ring 13, the extrusion effect between the buffer portion 1321 and the second flexible element 23 gradually increases, which is not easy to damage the rotating structure 132 and the second flexible element 23, and can also achieve an effective buffering effect.

[0055] As shown in combination with FIG. 9 and FIG. 10 , in some embodiments, the seat body 11 is provided with a rotation groove 112, and the rotation structure 132 is rotatably disposed in the rotation groove 112. The flip cover mechanism 10 may further include a second driving element 24, and the second driving element 24 is located outside the rotation groove 112. For example, the second driving element 24 is disposed on the side of the seat body 11 facing away from the seat ring 13. The second driving element 24 includes but is not limited to any applicable driving element such as an electric motor or a motor. The output shaft of the second driving element 24 passes through the side wall of the rotation groove 112 and is connected to the rotation structure 132. In this way, the appearance integrity and space utilization efficiency of the flip cover mechanism 10 can be improved.

[0056] In some embodiments, a receiving groove 113 is provided on the bottom wall of the rotating groove 112, and the second flexible element 23 includes a main body 231 and a fixing portion 232 connected to the main body 231, and the main body 231 is at least partially embedded in the receiving groove 113, and the fixing portion 232 passes through the seat body 11 so that the second flexible element 23 is relatively fixed to the seat body 11, for example, by interference fit with the seat body 11, and the buffer portion 1321 of the rotating structure 132 can be squeezed against the main body 231.

[0057] In some embodiments, the flip cover mechanism 10 further includes a limiting structure 25 disposed in the rotating groove 112, and a sliding groove 1322 is provided along the circumferential side of the rotating structure 132, and the limiting structure 25 is at least partially disposed in the sliding groove 1322. When the seat ring 13 rotates relative to the seat body 11, the limiting structure 25 slides along the sliding groove 1322, and when the seat ring 13 rotates to the open state, the limiting structure 25 abuts against the side wall of the sliding groove 1322, so that the seat ring 13 stops rotating and maintains the open state. The buffering effect of the buffering portion 1321 and the second flexible element 23 can reduce the rotation speed of the seat ring 13 when the limiting structure 25 contacts the side wall of the sliding groove 1322, thereby reducing the vibration and noise generated when the seat ring 13 reaches the open state, and the cooperation between the limiting structure 25 and the sliding groove 1322 can improve the space utilization efficiency of the flip cover mechanism 10.

[0058] Referring to FIG. 6 and FIG. 8 , in some embodiments, the flip cover mechanism 10 is provided with two pairs of connectors 15 and connector seats 16, each connector 15 is connected to a corresponding connector seat 16 and the cover body 12, so as to improve the stability of the cover body 12 rotating relative to the seat body 11. The first flexible element 17 and the flexible buffer 18 can be provided corresponding to two connector seats 16 to achieve a stronger buffering effect, or can be provided corresponding to only one of the connector seats 16, and can be specifically designed according to the spatial layout and buffering requirements. In some embodiments, the seat ring 13 can be provided with two rotating structures 132, and the two rotating structures 132 are respectively connected to two parts of the body 131, and are respectively rotatably provided in the two rotating grooves 112 of the seat body 11, so as to improve the stability of the seat ring 13 rotating relative to the seat body 11. The second flexible element 23 and / or the limiting structure 25 can be provided corresponding to the two rotating structures 132 to achieve a stronger buffering and / or limiting effect, and the second flexible element 23 and / or the limiting structure 25 can also be provided corresponding to only one rotating structure 132, and can be specifically designed according to the buffering and limiting requirements.

[0059] 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.

[0060] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A flap mechanism for a toilet, characterized in that: The flip cover mechanism comprises a base, a cover, a first driving element, a connecting member and a connecting base, wherein the connecting base is connected to the first driving element, the connecting member is connected to the cover and the connecting base, the first driving element is arranged on the base, and can drive the connecting base to rotate relative to the base, so as to drive the cover to rotate relative to the base by a first preset angle and switch from a closed state to an open state; The connecting seat includes a rotating part, a connecting part and a buffer part, the rotating part is connected to the first driving element, the connecting part is connected to the rotating part and the connecting member, the buffer part is arranged on the outer peripheral surface of the rotating part, and the flip cover mechanism also includes a first flexible element arranged on the seat body. During the process of switching the cover body from a closed state to an open state, when the rotation angle of the cover body is less than a second preset angle, the buffer part is spaced apart from the first flexible element, and when the rotation angle of the cover body is greater than or equal to the second preset angle, the buffer part squeezes the first flexible element, and the second preset angle is less than the first preset angle.

2. The flip cover mechanism according to claim 1, characterized in that: The buffer portion includes a first transition surface, a second transition surface and a third transition surface, the second transition surface is connected to the first transition surface and the third transition surface, the first transition surface and the third transition surface are connected to the outer peripheral surface of the rotating portion, and in the direction in which the second transition surface points to the rotating portion, the first transition surface and the third transition surface are inclined toward a side away from the second transition surface.

3. The flip cover mechanism according to claim 2, characterized in that: The first transition surface and the second transition surface, as well as the second transition surface and the third transition surface are connected by arc chamfers; And / or, the first flexible element is provided with a buffer groove facing the rotating part, and a side surface of the buffer groove is arc-shaped.

4. The flip cover mechanism according to claim 1, characterized in that: The flip cover mechanism also includes a flexible buffer member arranged on the seat body, the flexible buffer member is provided with a limiting surface facing the connecting portion, the limiting surface is inclined to the seat body, and when the cover body is in an open state, the surface of the connecting portion facing the first flexible element abuts against the limiting surface.

5. The flip cover mechanism according to claim 4, characterized in that: The flexible buffer comprises a buffer body and a buffer protrusion, the limiting surface is formed on the buffer body, the buffer protrusion is convexly arranged on the limiting surface, and the radial dimension of the buffer protrusion is smaller than the radial dimension of the buffer body.

6. The flip cover mechanism according to claim 5, characterized in that: The flexible buffer is integrally formed with the first flexible element; and / or, The flip cover mechanism further comprises a rigid limiting member, wherein the rigid limiting member is embedded in the buffer body, and an end surface of the rigid limiting member is exposed on the limiting surface.

7. The flip cover mechanism according to claim 1, characterized in that: The flip cover mechanism further comprises a seat ring and a second flexible element arranged on the seat body, the seat ring comprises a body and a rotating structure connected to the body, the rotating structure is rotatably connected to the seat body, the seat ring can be rotated relative to the seat body by a third preset angle to switch from a closed state to an open state, a buffer part is arranged on the outer circumference of the rotating structure, and the radial dimension of the outer circumference of the rotating structure at the buffer part is greater than the radial dimension of the other parts; During the process of switching the seat ring from a closed state to an open state, when the rotation angle of the seat ring is greater than or equal to a fourth preset angle, the buffer portion is opposite to and squeezes the second flexible element, and when the rotation angle of the seat ring is less than the fourth preset angle, the remaining portion of the outer peripheral surface of the rotating structure is opposite to and spaced from the second flexible element, and the fourth preset angle is less than the third preset angle.

8. The flip cover mechanism according to claim 7, characterized in that: The seat body is provided with a rotation groove, the rotation structure is rotatably arranged in the rotation groove, the flip cover mechanism further comprises a second driving element arranged on the seat body, the second driving element is located outside the rotation groove, and the output shaft of the second driving element passes through the side wall of the rotation groove and is connected to the rotation structure; The bottom wall of the rotating groove is provided with a receiving groove, the second flexible element comprises a main body and a fixing part connected to the main body, the main body is at least partially embedded in the receiving groove, and the fixing part passes through the seat body.

9. The flip cover mechanism according to claim 8, characterized in that: The flip cover mechanism also includes a limiting structure arranged in the rotating groove, and the rotating structure is also provided with a sliding groove along the circumferential side. The limiting structure is at least partially arranged in the sliding groove, and when the seat ring is in an open state, the limiting structure abuts against the side wall of the sliding groove.

10. A toilet, characterized in that: It comprises a toilet seat and a flip mechanism as described in any one of claims 1 to 9, wherein the toilet seat is provided with a toilet bowl, the flip mechanism is arranged on the toilet seat, and when the cover body is in a covering state, the cover body covers the toilet bowl.

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