Descent control device and toilet lid

Abstract

The utility model relates to the technical field of toilets, and provides a descent control device and a toilet lid, the descent control device comprises a first main body and a second main body, the second main body is rotatably arranged on the first main body, a cavity is formed between the second main body and the first main body, the first main body or the second main body is provided with a separation part, and the separation part is located in the cavity; the cavity is divided into a first cavity and a second cavity; the first body or the second body is further provided with a communicating groove, the first cavity and the second cavity are both communicated with the communicating groove, the cross section area of the communicating groove gradually changes from one end to the other end, a first communicating opening is formed between the side, located on the communicating groove, of the partition part and the communicating groove, and after the second body rotates, the size of the first communicating opening gradually changes.

Description

Technical Field

[0001] The utility model relates to the technical field of toilets, and in particular to a descending device and a toilet cover. Background Art

[0002] During daily use of the toilet, the frequent opening and closing actions cause the toilet cover to be under great pressure. The traditional mechanical shaft connection method can easily cause the toilet cover to collide with the toilet body at the moment of free fall, damaging the toilet cover and shortening its service life.

[0003] In order to slow down the falling speed of the toilet seat, a slow-down device is usually applied to the toilet seat. The mainstream toilet seat slow-down device on the market currently adopts a structure composed of a main shaft, a sleeve, a protruding rib with an oil hole, and a blade installed thereon. The device achieves a slow fall of the toilet seat by separating the blade from the oil hole when the sleeve rotates forward and sticking to the oil hole when it rotates reversely, thereby playing a buffering and protective role.

[0004] However, the current traditional slow-drop toilet lid generally has a problem when closing, that is, it can only achieve a constant uniform descent. Although it has a certain slow-drop effect, the slow descent speed causes the toilet lid to take a long time to close, reducing the user experience.

[0005] Therefore, a new descending device is needed to solve the above problems. Utility Model Content

[0006] The utility model provides a descending slow device and a toilet cover, which solves the problem in the related art that the descending speed of the toilet cover is relatively slow in order to achieve the descending slow effect.

[0007] The technical solution of the utility model is as follows:

[0008] Descending device, including:

[0009] The first subject,

[0010] a second body, the second body being rotatably disposed on the first body, a cavity being formed between the second body and the first body, the first body or the second body having a partition, the partition being located in the cavity and dividing the cavity into a first cavity and a second cavity;

[0011] The first body or the second body also has a connecting groove, the first cavity and the second cavity are both connected to the connecting groove, the cross-sectional area of ​​the connecting groove gradually increases or decreases from one end to the other end, and a first connecting port is formed between the partition and the connecting groove. After the second body rotates, the size of the first connecting port gradually increases or decreases.

[0012] Preferably, the cavity has a tapered section, the partition moves along the tapered section, and forms a second communication opening with the tapered section, and after the second body rotates, the size of the second communication opening gradually increases or decreases.

[0013] Preferably, it also includes:

[0014] A buffer component is disposed in the cavity, and the buffer component includes:

[0015] A blocking member and a blocked member, one of which is arranged on the first body or the second body, and the other of which is movably arranged in the cavity;

[0016] The blocked member has a guide groove, and two sides of the guide groove respectively have a first communicating hole and a second communicating hole, and the first communicating hole and the second communicating hole are respectively connected to the first cavity and the second cavity;

[0017] The blocking member is located in the guide groove and is arranged to move relative to the blocked member. After the movement, the blocking member blocks or cancels the blocking of the first communicating hole.

[0018] Preferably, it also includes:

[0019] There are a plurality of the first communicating holes and a plurality of the second communicating holes, which are spaced apart along the axial direction of the second body.

[0020] Preferably, it also includes:

[0021] The guide groove is U-shaped, the opening size of the first connecting hole is smaller than the opening size of the second connecting hole, and after the blocking member moves, it abuts against the side wall of the guide groove to block or cancel the blocking of the first connecting hole.

[0022] Preferably, the connecting groove is arc-shaped, and the bottom of the groove is a spiral surface.

[0023] Preferably, the first body comprises:

[0024] Rotating shaft;

[0025] The base is arranged on the rotating shaft, the communicating groove is arranged on the base, and the partition is slidably arranged on the base.

[0026] Preferably, the second body comprises:

[0027] A shaft sleeve is rotatably disposed on the rotating shaft, wherein the shaft sleeve, the rotating shaft and the base form the cavity;

[0028] An end cover is arranged on the shaft sleeve, and the end cover is used to seal the cavity.

[0029] Preferably, the plurality of connecting grooves are gradually deepened from shallow to deep along the same direction and / or the groove diameters are gradually increased from small to large in the same direction.

[0030] Toilet seat including lowering device.

[0031] The working principle and beneficial effects of the utility model are:

[0032] In the utility model, when the toilet lid is closed, the toilet lid will drive the second main body to rotate along the first main body, thereby pushing the damping oil to flow to the connecting groove through the partition. The entrance of the oil groove is large and the end is small. In the early stage of closing the toilet lid, the toilet lid can fall at a relatively fast speed, and the damping oil flows from the connecting groove. As the first connecting port gradually decreases during movement, the toilet lid will fall at a slow speed, realizing the fastening of the toilet lid at a speed first and then a slow speed. While accelerating the closing of the toilet lid, it can also prevent the toilet lid from hitting the toilet body and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0034] Figure 1 This is a schematic diagram of the external structure of the utility model descending slow device;

[0035] Figure 2 This is a schematic diagram of the first main structure of the utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the connecting groove of the utility model;

[0037] Figure 4 This is a schematic diagram of the structure of the buffer component of the utility model;

[0038] Figure 5 This is a schematic diagram of the internal structure of the utility model descending slow device;

[0039] Figure 6 This is a schematic diagram of the structure of the blocked member of the utility model;

[0040] Figure 7 This is a schematic diagram of the first main structure of the utility model;

[0041] Figure 8 This is a schematic diagram of the shaft sleeve structure of the utility model;

[0042] Fig. 9 This is a schematic diagram of the internal structure of the shaft sleeve of the utility model.

[0043] In the figure: 1. second body; 101. bushing; 2. first body; 201. rotating shaft; 202. base; 203. connecting groove; 3. partition; 4. top plate; 401. first connecting groove; 5. end cover; 6. buffer assembly; 601. blocked member; 6011. first connecting hole; 6012. second connecting hole; 6013. guide groove; 602. blocking member; 7. sealing ring; 8. cavity; 81. first cavity; 82. second cavity; 801. tapered section. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0045] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0046] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0047] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0048] Reference Figure 1 to Figure 9, is an embodiment of the utility model, the descending slow device, comprises: a first body 2, a second body 1, the second body 1 is rotatably arranged on the first body 2, a cavity 8 is formed between the second body 1 and the first body 2, the first body 2 or the second body 1 has a partition 3, the partition 3 is located in the cavity 8, and the cavity 8 is divided into a first cavity 81 and a second cavity 82; the first body 2 or the second body 1 also has a connecting groove 203, the first cavity 81 and the second cavity 82 are both connected to the connecting groove 203, the cross-sectional area of ​​the connecting groove 203 gradually increases or decreases from one end to the other end, a first connecting port is formed between the partition 3 and the connecting groove 203, and after the second body 1 rotates, the size of the first connecting port gradually increases or decreases.

[0049] In the above scheme, the descending device is mainly composed of two core components, namely the first body 2 and the second body 1. The first body 2 is used as a supporting base, and is designed with a structure that can accommodate the rotation of the second body 1. The two cooperate to form a closed cavity 8. In the cavity 8, a partition 3 is embedded in the second body 1 or provided on the first body 2, and the partition 3 divides the cavity 8 into a first cavity 81 and a second cavity 82 that are independent of each other. A connecting groove 203 is further processed on the first body 2 or the second body 1. The characteristic of this connecting groove 203 is that its cross-sectional area gradually changes along the length direction of the groove. In this way, when the second body 1 rotates relative to the first body 2, the connecting groove 203 can work together with the partition 3 to form a dynamically changing first connecting port with one side of the partition 3. The size of this first connecting port will change with the rotation angle of the second body 1.

[0050] The specific operation method is as follows: when the toilet cover is connected to the descending device, the second body 1 is connected to the toilet cover pivot, and the second body 1 is driven to rotate when the toilet cover is opened or closed. When the toilet cover falls, the second body 1 adjusts the size of the first connecting port by rotating, so that the fluid between the first cavity 81 and the second cavity 82, such as damping oil, can pass through the first connecting port to control the flow. Since the cross-sectional area of ​​the first connecting port decreases with the rotation angle, the descent speed of the toilet cover can be accurately adjusted, which not only avoids the impact damage caused by free fall, but also achieves a non-uniform but faster and smoother descent effect, greatly improving the user experience.

[0051] The shape of the connecting groove 203 can be designed to be a trapezoid, parabola or other gradual contours to ensure that the change in cross-sectional area meets the slow-down requirement. The position and shape of the partition 3 should be precisely matched with the connecting groove 203 to ensure that the size change of the first connecting port can be effectively controlled during rotation and maintain good sealing. The design of the toilet cover slow-down device should be easy to assemble on the existing toilet structure, and easy to install and maintain. The innovative design of the change in the cross-sectional area of ​​the connecting groove 203 is used to achieve intelligent control of the toilet cover falling speed, solve the problems of the single toilet cover falling speed and long closing time in the prior art, and improve the durability of the product and the user's satisfaction.

[0052] Furthermore, the cavity 8 has a tapered section 801 , the partition 3 moves along the tapered section 801 , and forms a second communication opening with the tapered section 801 . After the second body 1 rotates, the size of the second communication opening gradually increases or decreases.

[0053] In the above scheme, a cavity 8 structure with a tapered section 801 is formed outside the first body 2 or inside the second body 1. The specific working principle is as follows: when the toilet cover is put down, the second body 1 rotates accordingly, and the partition 3 follows the second body 1 to move along the tapered section 801. The inner diameter of the tapered section 801 gradually decreases according to a certain rule, so when the partition 3 moves along the tapered section 801, the size of the second communication port gradually increases or decreases, and is squeezed and resisted by the damping oil filled in the cavity 8. This resistance can effectively slow down the rotation speed of the second body 1, thereby indirectly controlling the speed of the toilet cover descent, and achieving a slow descent effect. In specific operation, as the toilet lid falls, the partition 3 cooperates with the connecting groove 203, so that the damping oil between the first cavity 81 and the second cavity 82 is blocked at the first connecting port. In addition, the resistance of the damping oil increases after the partition 3 enters the tapered section 801, thereby forming a non-uniform but stable descending mechanism, which not only avoids damage to the toilet lid caused by the rapid fall and the collision with the toilet body, but also shortens the closing time of the toilet lid and improves the user experience. In addition, the descender has a compact structure and realizes fine adjustment of the descent speed of the toilet lid by rationally utilizing the resistance characteristics of the damping oil, which is more advantageous than the traditional uniform descending descender. In actual installation, the descender can be easily adapted to various toilet structures.

[0054] Furthermore, it also includes: a buffer component 6, which is arranged in the cavity 8, and the buffer component 6 includes a blocking member 602 and a blocked member 601, one of which is arranged on the first body 2 or the second body 1, and the other is movably arranged in the cavity 8; the blocked member 601 has a guide groove 6013, and the two sides of the guide groove 6013 respectively have a first connecting hole 6011 and a second connecting hole 6012, and the first connecting hole 6011 and the second connecting hole 6012 are connected to the first cavity 81 and the second cavity 82 respectively; the blocking member 602 is located in the guide groove 6013, and is relatively movable with the blocked member 601, and after moving, blocks or cancels the blocking of the first connecting hole 6011. It also includes: there are a plurality of first connecting holes 6011 and second connecting holes 6012, which are arranged at intervals along the axial direction of the second body 1. The guide groove 6013 is U-shaped, and the opening size of the first connecting hole 6011 is smaller than the opening size of the second connecting hole 6012. After the blocking member 602 moves, it abuts against the side wall of the guide groove 6013 to block or cancel the blocking of the first connecting hole 6011. Further, after the second body 1 rotates, the sizes of the first connecting hole 6011 and the second connecting hole 6012 gradually increase or decrease.

[0055] In the above scheme, the buffer assembly 6 is composed of a stopper 602 and a blocked part 601. One of the stopper 602 and the blocked part 601 is installed on the first body 2 and the second body 1, and the other is arranged in the cavity 8, and the two cooperate with each other to achieve a more accurate and smooth slow-down effect. The specific structure and working principle are as follows: For example, when the blocked part 601 is arranged on the second body 1, it has a guide groove 6013 structure. The two sides of the guide groove 6013 are respectively designed with a first connecting hole 6011 and a second connecting hole 6012, which are respectively connected to the first cavity 81 and the second cavity 82 mentioned above, so that the damping medium such as damping oil in the cavity 8 can flow under the cooperation of the stopper 602 and the blocked part 601. The stopper 602 is designed to be rotatably installed in the guide groove 6013 of the blocked part 601. When the toilet cover starts to fall and drives the second body 1 to rotate, the stopper 602 rotates in the guide groove 6013. By rotating the blocking member 602, it can block the first connecting hole 6011, thereby changing the speed and flow rate of the damping medium flowing from the first cavity 81 to the second cavity 82, and further finely controlling the rate at which the toilet cover descends. In actual use, when the blocking member 602 rotates to block the first connecting hole 6011, the flow of the damping medium is blocked, and the speed at which the toilet cover descends slows down; when the blocking member 602 rotates to no longer block the first connecting hole 6011, the damping medium can flow smoothly, and the speed at which the toilet cover descends is appropriately accelerated. This design allows the toilet cover to descend more smoothly, fluently, and in a more humane manner during the closing process, greatly optimizing the user experience.

[0056] Further, the connecting groove 203 is arc-shaped, and the bottom of the groove is a spiral surface. In the above scheme, according to the above-mentioned slow-down device, the connecting groove 203 adopts an arc-shaped design, and the bottom of the groove presents the characteristics of a partial spiral surface. The specific structure and function are as follows: the connecting groove 203 formed between the first body 2 and the second body 1 of the slow-down device is arc-shaped. This design is conducive to the smooth flow of liquid such as damping oil in the groove along the arc track as the second body 1 rotates. More importantly, the bottom of the connecting groove 203 adopts a spiral surface design. When the second body 1 rotates, the damping oil will advance forward along the spiral surface of the bottom of the groove. Due to the change in the angle of the spiral surface, the liquid will experience different degrees of compression and expansion during the flow process, thereby forming a non-constant resistance. When the toilet cover falls, the second body 1 drives the liquid in the connecting groove 203 to flow. Due to the existence of the spiral surface, the liquid will be subject to increasing or decreasing resistance when passing through the bottom of the groove. The change in this resistance directly affects the speed of the toilet cover descent, and realizes flexible buffering and precise speed control during the descent of the toilet cover. Compared with the traditional straight or inclined connecting groove 203 design, the arc-shaped spiral connecting groove 203 can more effectively adjust the size and change trend of the damping force, making the slow lowering process of the toilet cover smoother and quieter, significantly improving the user comfort and product service life.

[0057] Furthermore, the number of the cavity 8 and the number of the partition 3 are two or more, and the number of the connecting groove 203 is two or more.

[0058] In the above scheme, the number of cavities 8 and partitions 3 is designed to be two or more, and each of the cavities 8 is provided with a connecting groove 203. This design of multiple cavities 8 and multiple partitions 3 can achieve more complex and sophisticated damping control to meet different slow-down requirements. The specific implementation method is as follows: two or more independent cavity 8 structures are formed between the first body 2 and the second body 1 of the slow-down device, and at least one partition 3 is provided in each cavity 8. When the second body 1 rotates relative to the first body 2, the partitions 3 in different cavities 8 will have different effects on the flow of damping media such as damping oil in the cavity 8, thereby achieving a multi-stage damping effect. For example, during the falling process of the toilet cover, as the second body 1 rotates, the size of the first connecting ports in different cavities 8 changes, and the damping oil in each cavity 8 is transferred through the first connecting port in sequence or simultaneously. Due to the different arrangements and combinations of the number of cavities 8 and the partitions 3, a variety of different damping curves can be created, making the descent speed of the toilet cover more gentle and controllable. This design of multiple cavities 8 and multiple partitions 3 provides higher design flexibility and applicability, and the damping characteristics can be adjusted according to actual needs, making the toilet lid softer and quieter during the closing process, significantly improving the user experience and product durability.

[0059] Furthermore, the first body 2 includes: a rotating shaft 201 ; a base 202 , which is disposed on the rotating shaft 201 , a connecting groove 203 disposed on the base 202 , and a partition 3 slidably disposed on the base 202 .

[0060] In the above scheme, the first body 2 is mainly composed of a rotating shaft 201 and a base. The rotating shaft 201 is the core bearing component of the entire descending device, responsible for connecting and supporting the second body 1 to ensure that it can rotate relative to the rotating shaft 201. The base is fixed on the rotating shaft 201 as a basic structure for carrying other key components. The connecting groove 203 is arranged on the base. This connecting groove 203 has the characteristic of gradually changing cross-sectional area, which is used to adjust the flow speed of the damping medium such as damping oil, thereby controlling the descending speed of the toilet cover. The partition 3 is slidably arranged on the base, that is, the partition 3 can move within the range limited by the base, and change its position relative to the connecting groove 203 as the second body 1 rotates. In this way, when the toilet cover falls, the second body 1 drives the partition 3 to slide on the base, changes the opening size of the connecting groove 203, and then realizes the precise control of the flow of the damping medium, so as to achieve the purpose of slowing down the toilet cover. This embodiment constructs a compact and fully functional descending device through the rotating shaft 201, the base, the connecting groove 203 and the sliding partition 3, which can not only effectively protect the toilet cover from impact damage, but also provide a smooth, quiet and adjustable descending experience, thereby improving the practicality of the product and user experience.

[0061] Furthermore, the second main body 1 includes: a sleeve 101, which is rotatably arranged on the rotating shaft 201, and the sleeve 101, the rotating shaft 201 and the base 202 form a cavity 8; an end cover 5, which is arranged on the sleeve 101, and the end cover 5 is used to seal the cavity 8, and a sealing ring 7, which is arranged between the end cover 5 and the sleeve 101.

[0062] In the above scheme, the second body 1 is mainly composed of three parts: a sleeve 101, an end cover 5 and a sealing ring 7. The sleeve 101 is designed to be able to rotate around the rotating shaft 201 of the first body 2. The internal space of the sleeve 101 and the connecting groove 203 and other structures of the first body 2 form an interactive area, and jointly participate in the flow control of the damping medium. The sleeve 101 is provided with a matching structural component, such as a mounting groove, etc., which is connected to the toilet cover. When the toilet cover is opened or closed, the sleeve 101 is driven to rotate around the rotating shaft 201. The end cover 5 is arranged at the top of the sleeve 101, which plays the role of blocking the open port of the sleeve 101, preventing the damping medium from overflowing or foreign impurities from entering the interior of the descending device, and ensuring the normal operation and durability of the descending device. The sealing ring 7 is arranged between the end cover 5 and the sleeve 101, which plays a key sealing role, can effectively prevent the leakage of the damping medium, and reduce friction and prevent wear during the rotation of the sleeve 101, and ensure good sealing and rotation flexibility between the sleeve 101 and the end cover 5. Through this design, the second body 1 works in coordination with the first body 2 to ensure that the descender precisely controls the lowering process of the toilet seat, thereby achieving a smooth, quiet and efficient descending effect.

[0063] Furthermore, the plurality of connecting grooves 203 are gradually deepened along the same direction and / or the groove diameters are gradually increased along the same direction.

[0064] In the above scheme, the connecting groove 203 presents a change in depth from shallow to deep, or a change in groove diameter from small to large, or even a gradual change in depth and groove diameter at the same time along the same direction. Specifically, when the toilet cover is lowered, the second body 1 drives the damping medium such as damping oil in the connecting groove 203 to flow. Since the depth or groove diameter of the connecting groove 203 is gradual, the damping medium will encounter more and more resistance during the flow process, thereby gradually reducing the descending speed of the toilet cover and achieving a smoother and more stable slow-down effect. Through the continuous gradual change of multiple connecting grooves 203, the distribution of the damping force can be adjusted more delicately, so that the toilet cover can enjoy a balanced and effective slow-down force throughout the entire falling process, which greatly improves the user experience and is also conducive to extending the service life of the toilet cover and the slow-down device.

[0065] A top plate 4 is also provided near the end cover 5 , a hole is opened in the middle of the top plate 4 , and a first connecting groove 401 is provided on the top plate 4 . The position of the first connecting groove 401 corresponds to that of the connecting groove 203 , and the first connecting groove 401 and the connecting groove 203 have the same function.

[0066] The toilet cover comprises a descending device. The descending device can be applied to toilet covers of different models and specifications, and has strong applicability.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Descending device, include: First subject (2), a second body (1), the second body (1) being rotatably disposed on the first body (2), a cavity (8) being formed between the second body (1) and the first body (2), the first body (2) or the second body (1) having a partition (3), the partition (3) being located in the cavity (8) and dividing the cavity (8) into a first cavity (81) and a second cavity (82); The first body (2) or the second body (1) further comprises a connecting groove (203), the first cavity (81) and the second cavity (82) are both connected to the connecting groove (203), the cross-sectional area of ​​the connecting groove (203) gradually increases or decreases from one end to the other end, a first connecting opening is formed between the partition (3) and the connecting groove (203), and after the second body (1) rotates, the size of the first connecting opening gradually increases or decreases.

2. The descending device according to claim 1, It is characterized in that The cavity (8) has a tapered section (801), the partition (3) moves along the tapered section (801) and forms a second communication opening with the tapered section (801), and after the second body (1) rotates, the size of the second communication opening gradually increases or decreases.

3. The descending device according to claim 1, It is characterized in that Also includes: A buffer component (6) is arranged in the cavity (8), and the buffer component (6) comprises: A blocking member (602) and a blocked member (601), one of which is arranged on the first body (2) or the second body (1), and the other of which is movably arranged in the cavity (8); The blocked member (601) has a guide groove (6013), and two sides of the guide groove (6013) respectively have a first communicating hole (6011) and a second communicating hole (6012), and the first communicating hole (6011) and the second communicating hole (6012) are respectively connected to the first cavity (81) and the second cavity (82); The blocking member (602) is located in the guide groove (6013) and is arranged to move relative to the blocked member (601). After the movement, the blocking member (602) blocks or cancels the blocking of the first connecting hole (6011).

4. The descending device according to claim 3, It is characterized in that Also includes: There are a plurality of the first communicating holes (6011) and a plurality of the second communicating holes (6012), which are arranged at intervals along the axial direction of the second body (1).

5. The descending device according to claim 3, It is characterized in that Also includes: The guide groove (6013) is U-shaped, the opening size of the first connecting hole (6011) is smaller than the opening size of the second connecting hole (6012), and after the blocking member (602) moves, it abuts against the side wall of the guide groove (6013) to block or cancel the blocking of the first connecting hole (6011).

6. The descending device according to claim 1, It is characterized in that The connecting groove (203) is arc-shaped, and the bottom of the groove is a spiral surface.

7. The descending device according to claim 1, Features: The first body (2) comprises: Axis(201); The base (202) is arranged on the rotating shaft (201), the connecting groove (203) is arranged on the base (202), and the partition (3) is slidably arranged on the base (202).

8. The descending device according to claim 7, It is characterized in that The second body (1) comprises: A shaft sleeve (101) is rotatably disposed on the rotating shaft (201), wherein the shaft sleeve (101), the rotating shaft (201) and the base (202) surround the cavity (8); An end cover (5) is arranged on the shaft sleeve (101), and the end cover (5) is used to seal the cavity (8).

9. The descending device according to claim 1, It is characterized in that The plurality of connecting grooves (203) are gradually deepened from shallow to deep along the same direction and / or the groove diameters are gradually increased from small to large in the same direction.

10. Toilet seat, It is characterized in that include: The descending device according to any one of claims 1 to 9.

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