Floor drain

Abstract

The floor drain comprises a floor drain base and a floor drain cover, the floor drain base is provided with a floor drain cavity, the upper end of the floor drain cavity is provided with a water inlet, and the lower end of the floor drain cavity is provided with a water outlet; the floor drain cover is movably arranged in the floor drain base, the floor drain cover is provided with a first position and a second position, at least part of the floor drain cover is located in the water inlet when the floor drain cover is located in the first position, and the floor drain cover reaches the second position through downward moving and overturning. And the floor drain cover is in an inclined state at the second position, and a drainage gap is formed between the floor drain cover and the floor drain seat. When the floor drain cover is blocked, water can be drained by moving downwards and turning over to the second position, and therefore the situation that due to the blocking problem of the floor drain cover, the floor drain drains water slowly or cannot drain water, and water is accumulated on the ground is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of building drainage, in particular to a floor drain. Background Art

[0002] The floor drain is an important interface connecting the drainage pipe system and the indoor floor. As an important component of the drainage system in a residence, its performance directly affects the quality of indoor air and environment, and is very important for odor control in the bathroom. The floor drain is generally composed of a floor drain seat, a floor drain cover and a floor drain core. The floor drain cover is the first checkpoint to intercept hair. It is usually removably arranged in the water inlet of the floor drain seat, and the floor drain cover is usually provided with a drain hole to facilitate timely drainage. However, this type of floor drain has the following shortcomings: when the floor drain cover intercepts a large amount of hair, it is easy to block the drain hole, thereby affecting the drainage effect of the floor drain. During the bathing process, once the drain hole on the floor drain cover is blocked, the floor drain will drain slowly or even unable to drain, and water will accumulate on the ground, greatly reducing the user experience. Summary of the invention

[0003] The present invention aims at the technical problems existing in the prior art and provides a floor drain, which can improve the problem of drainage affected by clogging of the floor drain cover through structural improvement.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a floor drain, including a floor drain seat and a floor drain cover, the floor drain seat is provided with a floor drain cavity, the upper end of the floor drain cavity is provided with a water inlet, and the lower end is provided with a drain outlet; the floor drain cover can be movably arranged in the floor drain seat, and the floor drain cover has a first position and a second position, the floor drain cover is at least partially located in the water inlet when in the first position, the floor drain cover reaches the second position by moving down and turning over, and the floor drain cover is in an inclined state in the second position and forms a drainage gap between the floor drain seat and the floor drain cover.

[0005] In a preferred embodiment, the floor drain cover is switched from the first position to the second position by water flow and / or human power; and also includes a reset member arranged between the floor drain cover and the floor drain seat, which is used to drive the floor drain cover to switch from the second position to the first position.

[0006] In a preferred embodiment, the floor drain cover is provided with a rotating shaft for turning it upside down, and a guiding structure is provided between the rotating shaft and the floor drain seat to guide the up and down movement of the floor drain cover.

[0007] In a preferred embodiment, there are two rotating shafts, the two rotating shafts are coaxially arranged, and the two rotating shafts are respectively protruded from the side of the floor drain cover; the guide structure includes guide grooves respectively arranged on the inner side surface of the floor drain seat corresponding to each rotating shaft, the guide grooves extend in the up and down directions, and the rotating shaft is adapted to be slidably connected to the guide grooves.

[0008] In a preferred embodiment, the cross-section of the rotating shaft is flat, and the guide groove includes a guide section and a flip section distributed up and down, the guide section guides the up and down movement of the rotating shaft and limits the rotation of the rotating shaft, the flip section is wider than the guide section to accommodate the flipping of the rotating shaft, and the bottom end of the flip section is provided with a flip groove suitable for accommodating the rotating shaft, so that the rotating shaft can flip with the flip groove as a fulcrum.

[0009] In a preferred embodiment, the rotating shaft is arranged on the back side of the floor drain cover, and the guide structure includes a guide rod and a guide seat. The guide seat is arranged in the floor drain seat, the guide rod is movably arranged on the guide seat up and down, and the upper end of the guide rod is connected to the rotating shaft.

[0010] In a preferred embodiment, the guide rod is located on the central axis of the floor drain seat, the guide seat is configured as a hollow structure capable of draining water, and the guide seat is configured to be removable and removable; the upper end of the guide rod is provided with a receiving groove adapted for the rotating shaft, and the rotating shaft is placed in the receiving groove.

[0011] In a preferred embodiment, the reset member includes a plurality of first magnets provided on the floor drain cover and a plurality of second magnets provided on the floor drain seat, the plurality of first magnets are arranged along the axial direction of the rotating shaft, and the plurality of magnets are provided on both sides of the middle part of the floor drain cover; the plurality of first magnets are opposite to the plurality of second magnets one by one up and down, and each first magnet is opposite to the same pole of the corresponding second magnet.

[0012] In a preferred embodiment, the reset member includes a first reset member arranged between the guide rod and the guide seat to drive the guide rod to reset upward, and a second reset member for driving the rotating shaft to rotate and reset, and the second reset member is arranged between the rotating shaft and / or the floor drain cover and the guide rod.

[0013] In a preferred embodiment, the first reset member is a first spring; the second reset member includes two second springs sleeved on the rotating shaft, the two second springs are arranged on both sides of the guide rod, and the supporting feet arranged at both ends of each second spring are respectively limited to the floor drain cover and the guide rod.

[0014] In a preferred embodiment, a magnet is provided in the floor drain seat, and the magnet attracts the floor drain cover to flip when the floor drain cover moves downward.

[0015] In a preferred embodiment, the shape and size of the floor drain cover are adapted to the water inlet; the floor drain cover is horizontal when in the first position, and the top surface of the floor drain cover is flush with the top surface of the floor drain seat.

[0016] In a preferred embodiment, the floor drain cover is not provided with a drain hole, and the floor drain cover closes the water inlet when in the first position.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Since the floor drain cover of the present invention is movably arranged in the floor drain seat, and the floor drain seat has a first position and a second position, the floor drain cover is at least partially located in the water inlet of the floor drain seat when in the first position, and the floor drain cover reaches the second position by moving down and turning over, and the floor drain cover is in an inclined state in the second position and forms a drainage gap with the floor drain seat, so that the floor drain cover of the present invention can be moved down and turned over to the second position for drainage when a blockage problem occurs, thereby avoiding the situation where the floor drain is slowly drained or cannot be drained due to the blockage problem of the floor drain cover, causing water accumulation on the ground. In addition, the floor drain cover is in an inclined state in the second position, which can increase the drainage gap and improve the drainage effect, and can also use water flow to flush the surface of the floor drain cover in an inclined state to reduce the surface dirt of the floor drain cover.

[0019] 2. As a preferred embodiment, the floor drain cover is switched from the first position to the second position by water flow and / or human power, so that the floor drain can be drained quickly and the structure of the floor drain is simpler without the need for an additional driving mechanism.

[0020] 3. The floor drain cover is turned over by setting a rotating shaft, and a guide structure is set between the rotating shaft and the floor drain seat, which does not affect the turning of the floor drain cover and can achieve smooth lifting and lowering of the floor drain cover.

[0021] 4. As a preferred embodiment, the floor drain cover is not provided with a drain hole, which can avoid the problem of hair entanglement in the floor drain cover, and also make the floor drain cover more simple and beautiful in appearance, and easier to process and shape; when the floor drain cover is in the first position, the water inlet of the floor drain seat is closed, which can greatly improve the sealing performance of the floor drain cover, achieve the effect of isolating sewer odor and flying insects, and also make the floor drain do not need to be equipped with a separate floor drain core, thereby solving the problem of blockage of the floor drain core.

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; however, the floor drain of the present invention is not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is an exploded schematic diagram of the present invention in Example 1;

[0024] Figure 2 1 is a schematic diagram of the three-dimensional structure of the floor drain cover of the present invention in Example 1;

[0025] Figure 3 is a front view of a floor drain cover according to the first embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of the three-dimensional structure of the floor drain seat of the present invention in Example 1;

[0027] Figure 5 is a schematic diagram of the three-dimensional structure of the present invention in Embodiment 1 when the floor drain cover is in the first position;

[0028] Figure 6 This is a cross-sectional view of the first embodiment of the present invention when the floor drain cover is in the first position. Figure 1 ;

[0029] Figure 7 This is a cross-sectional view of the first embodiment of the present invention when the floor drain cover is in the first position. Figure 2 ;

[0030] Figure 8 This is a cross-sectional view of the present invention in the first embodiment when the floor drain cover is in the second position. Figure 1 ;

[0031] Fig. 9 This is a cross-sectional view of the first embodiment of the present invention when the floor drain cover is in the second position. Figure 2 ;

[0032] Fig.10 is an exploded schematic diagram of the second embodiment of the present invention;

[0033] Fig.11 is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention when the floor drain cover is in the first position;

[0034] Fig.12 This is a cross-sectional view of the second embodiment of the present invention when the floor drain cover is in the first position Figure 1 ;

[0035] Fig.13 This is a cross-sectional view of the second embodiment of the present invention when the floor drain cover is in the first position Figure 2 ;

[0036] Fig.14 This is a cross-sectional view of the second embodiment of the present invention when the floor drain cover is in the second position. Figure 1 ;

[0037] Fig.15 This is a cross-sectional view of the second embodiment of the present invention when the floor drain cover is in the second position. Figure 2 ;

[0038] In the figure, 1, floor drain seat; 11, floor drain cavity; 12, water inlet; 13, water outlet; 14, guide groove; 141, guide section; 142, flip section; 15, flip groove; 16, groove; 17, drainage gap; 2, floor drain cover; 21, water hole; 22, rotating shaft; 23, protrusion; 3, first magnet; 4, second magnet; 5, floor drain core; 51, core tube; 52, cover plate; 6, guide rod; 61, accommodating groove; 7, guide seat; 71, guide cavity; 72, water inlet; 73, water outlet; 8, first spring; 9, second spring; 91, support foot; 10, magnet. DETAILED DESCRIPTION

[0039] In the present invention, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0040] Embodiment 1

[0041] See also Figure 1-Figure 9 As shown, a floor drain of the present invention comprises a floor drain seat 1 and a floor drain cover 2, the floor drain seat 1 is provided with a floor drain cavity 11, the upper end of the floor drain cavity 11 is provided with a water inlet 12, the lower end is provided with a drain port 13, and the top of the floor drain cavity 11 and the water inlet 12 are transitioned by a step. The floor drain cover 2 is movably arranged in the floor drain seat 1 (specifically, it can be moved up and down and turned up and down), and the floor drain cover 2 has a first position and a second position. When the floor drain cover 2 is in the first position, at least part of it is located in the water inlet 12. The floor drain cover 2 reaches the second position by moving down and turning over, and the floor drain cover 2 is in an inclined state in the second position and forms a drainage gap between the floor drain seat 1. The shape and size of the surrounding of the floor drain cover 2 are adapted to the water inlet 12, the floor drain cover 2 is in a horizontal state when in the first position, and the top surface of the floor drain cover 2 is flush with the top surface of the floor drain seat 1. In this embodiment, the floor drain cover 2 is provided with a plurality of drainage holes 21.

[0042] In this embodiment, when draining water, the floor drain cover 2 is pushed by the water flow to switch from the first position to the second position. The present invention also includes a reset member arranged between the floor drain cover 2 and the floor drain seat 1, and when the thrust received by the floor drain cover 2 is less than the restoring force of the reset member, the reset member drives the floor drain cover 2 to switch from the second position to the first position. In other embodiments, the floor drain cover 2 is switched from the first position to the second position by human power, and the human power push mode and the water flow push mode can be combined, or the present invention also includes a driving mechanism for driving the floor drain cover 2 to switch between the first position and the second position.

[0043] The floor drain cover 2 is provided with a rotating shaft 22 for turning it upside down, and a guide structure is provided between the rotating shaft 22 and the floor drain seat 1 to guide the up and down movement of the floor drain cover 2. In this way, the turning of the floor drain cover 2 is not affected, and the floor drain cover 2 can be lifted and lowered smoothly. In this embodiment, there are two rotating shafts 22, the two rotating shafts 22 are coaxially arranged, and the two rotating shafts 22 are respectively convexly arranged on the side of the floor drain cover 2. The guide structure includes guide grooves 14 respectively provided on the inner side surface of the floor drain seat 1 corresponding to each rotating shaft 22, the guide grooves 14 extend in the up and down direction, and the rotating shaft 22 is adapted to be slidably connected to the guide grooves 14. In particular, the upper end of the guide groove 14 is provided with an opening suitable for the rotating shaft 22 to enter and exit, so as to facilitate the taking and placing of the floor drain cover 2. The cross section of the rotating shaft 22 is flat, and the guide groove 14 includes a guide section 141 and a flip section 142 distributed up and down. The guide section 141 is longer than the flip section 142, and the guide section 141 guides the up and down movement of the rotating shaft and limits the rotation of the rotating shaft 22; the flip section 142 is wider than the guide section 141 to accommodate the flipping of the rotating shaft 142, and the bottom end of the flip section 142 is provided with a flip groove 15 suitable for accommodating the rotating shaft 22, so that the rotating shaft 22 enters the flip groove 15 and flips with the flip groove 15 as a fulcrum. Specifically, the cross section of the rotating shaft 22 is waist-shaped, and when the floor drain cover 2 is in a horizontal state, the two straight sides of the cross section of the rotating shaft 22 are respectively located in the vertical direction; the flip groove 15 is an arc groove, and is adapted to the downward arc side of the cross section of the rotating shaft 22. In other embodiments, the cross section of the rotating shaft 22 is circular.

[0044] The reset member includes a plurality of first magnets 3 provided on the floor drain cover 2 and a plurality of second magnets 4 provided on the floor drain seat 1, and the plurality of first magnets 3 are arranged along the axial direction of the rotating shaft 22, and the plurality of magnets are provided on both sides of the middle of the floor drain cover 2. The plurality of first magnets 3 and the plurality of second magnets 4 are opposite to each other up and down, and each first magnet 3 is opposite to the same pole of the corresponding second magnet 4. In the present embodiment, two first magnets 3 and two second magnets 4 are respectively used as examples, but it is not limited thereto, and the two first magnets 3 are symmetrically distributed. Each first magnet 3 is respectively embedded in a corresponding protrusion 23 provided at the bottom end of the floor drain cover 2, as shown in FIG. Figure 3 , Figure 6 Each second magnet 4 is respectively embedded in a corresponding groove 16 at the bottom of the drain seat 1, as shown in FIG. Figure 4 , Figure 6As shown. The arrangement of the first magnet 3 and the second magnet 4 makes it convenient to take and put the floor drain cover 2, and makes the space between the floor drain cover 2 and the floor drain seat 1 more concise, reducing many bends and turns, thereby reducing dirt hanging and reducing the problem of blockage. In other embodiments, the reset member includes an elastic member, preferably a spring, so that the floor drain cover 2 is reset by the elastic member. Specifically, the inner wall of the floor drain seat is provided with a mounting groove for installing the elastic member, and the height of the mounting groove is lower than the height of the flip groove, so that when the floor drain cover is lowered and flipped, the elastic member can be compressed in the mounting groove, one end of the elastic member is fixed in the mounting groove, and the other end is abutted against the rotating shaft through a mounting seat, and the end of the mounting seat opposite to the rotating shaft has a rotating groove corresponding to the rotating shaft, so that the rotating shaft can rotate in the rotating groove.

[0045] In this embodiment, the present invention further comprises a floor drain core 5, which is arranged at the drain port 13 of the floor drain seat 1. The floor drain core 5 specifically comprises a core barrel 51 and a cover plate 52 rotatably connected to the bottom of the core barrel 51, and the cover plate 52 is provided with a counterweight and / or a reset structure between the cover plate 52 and the core barrel 51, so that the cover plate 52 automatically flips downward to open the drainage when driven by the water flow, and then automatically flips upward to close the opening at the bottom of the core barrel 51.

[0046] A floor drain of the present invention has an initial state as follows Figure 5-Figure 7 As shown, at this time, the floor drain cover 2 is in the first position: the floor drain cover 2 is horizontally located in the water inlet 12 of the floor drain seat 1, and the rotating shafts 22 on both sides of the floor drain cover 2 are respectively located at the top of the corresponding guide grooves 14.

[0047] During normal drainage, water flows into the floor drain cavity 11 of the floor drain seat 1 through the drain hole 21 of the floor drain cover 2, and impacts the cover plate 52 of the floor drain core 5, so that the cover plate 52 opens for drainage. When the drain hole 21 of the floor drain cover 2 is blocked, water gradually accumulates on the ground. When the accumulated water is sufficient to overcome the force of the reset member, the floor drain cover 2 moves downward under the impact of the water flow, as shown in FIG. Figure 8 As shown, the floor drain cover 2 is overturned by the water pressure, so that a drainage gap 17 appears between the floor drain cover 2 and the floor drain seat 1, as shown in FIG. Fig. 9 As shown, water can be quickly drained downward from the drainage gap 17. When the drain hole 21 of the floor drain cover 2 is blocked and the water on the ground is not enough to overcome the force of the reset member, the user can also directly push the floor drain cover 2 with his feet or with the help of tools to move the floor drain cover 2 downward and flip it over, thereby improving the drainage effect and avoiding the phenomenon of water accumulation on the ground. When the thrust acting on the floor drain cover 2 disappears or is less than the force of the reset member, the floor drain cover 2 gradually rises, that is, flips and resets, under the action of the magnetic repulsion of the first magnet 3 and the second magnet 4 and its own balancing force, and finally returns to the position as shown in the figure. Figure 5-Figure 7 The initial position shown is the first position.

[0048] Therefore, a floor drain of the present invention improves the problem of clogging of the floor drain cover 2, and avoids the situation where water accumulates on the ground due to slow drainage or inability to drain due to clogging of the floor drain cover 2. In particular, the floor drain cover 2 is in an inclined state in the second position, which can increase the drainage gap 17 and improve the drainage effect. The surface of the floor drain cover 2 in an inclined state can also be flushed by water flow, thereby reducing the dirt on the surface of the floor drain cover 2.

[0049] Embodiment 2

[0050] See also Figure 10-15 As shown, a floor drain of the present invention is different from the above-mentioned embodiment 1 in that: the rotating shaft 22 is arranged on the back side of the floor drain cover 2, the guide structure includes a guide rod 6 and a guide seat 7, the guide seat 7 is arranged in the floor drain seat 1, the guide rod 6 is movably arranged on the guide seat 7 up and down, and the upper end of the guide rod 6 is connected to the rotating shaft 22.

[0051] In this embodiment, the guide rod 6 is located on the central axis of the floor drain seat 1, and the guide seat 7 is set as a hollow structure capable of draining water, and the guide seat 7 is arranged to be removable. Specifically, the guide seat 7 includes three concentrically arranged wall bodies, the innermost wall body encloses a guide cavity 71, and the upper end of the guide cavity 71 is provided with an opening, and the guide rod 6 is provided with the upper end opening of the guide cavity 71, and the bottom of the guide rod 6 is limited in the guide cavity 71 to prevent the guide rod 6 from being pulled out of the guide cavity 71 upward. An annular drainage cavity is formed between the remaining two wall bodies of the guide seat 7, and the upper end of the drainage cavity is provided with a plurality of long strip water inlet holes 72 distributed along its circumference, and there is a gap between the wall body of the middle layer and the innermost wall body, and the wall body of the middle layer is provided with a water outlet 73 connected to the drainage cavity, and the water outlet 73 is connected to the drainage port 13 of the floor drain seat 1. The upper end of the guide rod 6 is provided with a receiving groove 61 adapted to the rotating shaft 22, and the rotating shaft 22 is placed in the receiving groove 61.

[0052] In this embodiment, the reset member includes a first reset member disposed between the guide rod 6 and the guide seat 7 to drive the guide rod 6 to reset upward, and a second reset member for driving the rotating shaft 22 to rotate and reset, and the second reset member is disposed between the rotating shaft 22 and / or the floor drain cover 2 and the guide rod 6. In addition, in this embodiment, the reset member described in the above embodiment 1 can also be used to realize the reset function of the floor drain cover 2.

[0053] The first reset member is an elastic member, specifically a first spring 8, which is located in the above-mentioned guide cavity 71 and abuts against the bottom of the guide cavity 71 and the bottom of the guide rod 6. The second reset member includes two second springs 9 sleeved on the rotating shaft 22, and the two second springs 9 are arranged on both sides of the guide rod 6, and the legs 91 arranged at both ends of each second spring 9 are respectively limited to the floor drain cover 2 and the guide rod 6. Specifically, the legs 91 arranged at both ends of each second spring 9 are respectively plugged into the floor drain cover 2 and the guide rod 6, and the legs 91 are parallel to the rotating shaft 22. In other embodiments, the second reset member includes a torsion spring, which is sleeved on the rotating shaft 22, and the two legs of the torsion spring are respectively limited to the rotating shaft 22 and the guide rod 6. In this way, the floor drain cover 2 and the guide structure form a module, and the guide structure can move in and out of the floor drain seat 1 with the floor drain cover 2.

[0054] As a preferred embodiment, a magnet 10 is provided in the floor drain seat 1, and the magnet 10 attracts the floor drain cover 2 to flip when the floor drain cover 2 moves down, thereby increasing the flipping driving force of the floor drain cover 2, but it is not limited to this. In other embodiments, the floor drain cover completely relies on water flow and / or human power to flip. Specifically, the floor drain cover 2 is made of metal and can be attracted by the magnet 10 when it is close to the magnet 10, but it is not limited to this. In other embodiments, another magnet that can be magnetically attracted to the magnet 10 is provided on the floor drain cover 2.

[0055] In this embodiment, the floor drain cover 2 is not provided with a drain hole, and the floor drain cover 2 closes the water inlet 12 when in the first position, which can play a role in isolating odor and insects. Specifically, the floor drain cover 2 is a plate-like structure with a complete surface.

[0056] A floor drain of the present invention has an initial state as follows Figure 11-13 As shown, at this time, the floor drain cover 2 is in the first position: the floor drain cover 2 is horizontally located in the water inlet 12 of the floor drain seat 1.

[0057] When draining, the floor drain cover 2 moves downward under the impact of the water flow into the floor drain cavity 11 of the floor drain seat 1, as shown in FIG. Fig.14 As shown, the drain cover 2 is overturned by the water pressure and the suction force of the magnet 10, so that a drainage gap 17 appears between the drain cover 2 and the drain seat 1, as shown in FIG. Fig.15 As shown, water can be quickly drained downward from the drainage gap 17. When the water on the ground is not enough to push the floor drain cover 2 downward, the user can also directly push the floor drain cover 2 with his feet or with the help of tools to move the floor drain cover 2 downward and flip it over, thereby improving the drainage effect and avoiding the phenomenon of water accumulation on the ground. When the thrust acting on the floor drain cover 2 disappears or is less than the force of the reset member, the guide rod 6 is reset upward by the first spring 8, so that the floor drain cover 2 gradually rises. At the same time, the rotating shaft 22 is flipped and reset under the action of the second spring 9, so that the floor drain cover 2 finally returns to the position as shown. Figure 11-13 The initial position shown is the first position.

[0058] The floor drain of the present invention, the unrelated parts are the same as those in the prior art or can be realized by adopting the prior art.

[0059] The above embodiments are only used to further illustrate a floor drain of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the technical solution of the present invention.

Claims

1. A floor drain, comprising a floor drain seat and a floor drain cover, wherein the floor drain seat is provided with a floor drain cavity, the upper end of the floor drain cavity is provided with a water inlet, and the lower end of the floor drain cavity is provided with a drain outlet; characterized in that: The floor drain cover can be movably arranged in the floor drain seat, and the floor drain cover has a first position and a second position. When the floor drain cover is in the first position, at least a part of the floor drain cover is located in the water inlet. The floor drain cover reaches the second position by moving down and turning over, and the floor drain cover is in an inclined state in the second position and forms a drainage gap between the floor drain seat and the floor drain seat.

2. The floor drain according to claim 1, characterized in that: The floor drain cover is switched from the first position to the second position by water flow and / or human power; and further comprises a reset member arranged between the floor drain cover and the floor drain seat, the reset member is used to drive the floor drain cover to switch from the second position to the first position.

3. The floor drain according to claim 2, characterized in that: The floor drain cover is provided with a rotating shaft for turning it upside down, and a guiding structure is provided between the rotating shaft and the floor drain seat to guide the up and down movement of the floor drain cover.

4. The floor drain according to claim 3, characterized in that: There are two rotating shafts, which are coaxially arranged and protrude from the side of the floor drain cover respectively; the guide structure includes guide grooves respectively arranged on the inner side of the floor drain seat corresponding to each rotating shaft, the guide grooves extend in the up and down directions, and the rotating shaft is adapted to be slidably connected to the guide grooves.

5. The floor drain according to claim 4, characterized in that: The cross-section of the rotating shaft is flat, and the guide groove includes a guide section and a flip section distributed up and down. The guide section guides the up and down movement of the rotating shaft and limits the rotation of the rotating shaft. The flip section is wider than the guide section to accommodate the flipping of the rotating shaft, and the bottom end of the flip section is provided with a flip groove suitable for accommodating the rotating shaft, so that the rotating shaft can flip with the flip groove as a fulcrum.

6. The floor drain according to claim 3, characterized in that: The rotating shaft is arranged on the back side of the floor drain cover, and the guide structure includes a guide rod and a guide seat. The guide seat is arranged in the floor drain seat, and the guide rod is movably arranged on the guide seat up and down, and the upper end of the guide rod is connected to the rotating shaft.

7. The floor drain according to claim 6, characterized in that: The guide rod is located on the central axis of the floor drain seat, the guide seat is set as a hollow structure capable of draining water, and the guide seat is arranged to be removable; the upper end of the guide rod is provided with a receiving groove adapted to the rotating shaft, and the rotating shaft is placed in the receiving groove.

8. The floor drain according to any one of claims 3 to 7, characterized in that: The reset member includes a plurality of first magnets arranged on the floor drain cover and a plurality of second magnets arranged on the floor drain seat, the plurality of first magnets are arranged along the axial direction of the rotating shaft, and the plurality of magnets are arranged on both sides of the middle part of the floor drain cover; the plurality of first magnets are opposite to the plurality of second magnets one by one up and down, and each first magnet is opposite to the same pole of the corresponding second magnet.

9. The floor drain according to claim 6 or 7, characterized in that: The reset member includes a first reset member arranged between the guide rod and the guide seat to drive the guide rod to reset upward, and a second reset member for driving the rotating shaft to rotate and reset, and the second reset member is arranged between the rotating shaft and / or the floor drain cover and the guide rod.

10. The floor drain according to claim 9, characterized in that: The first reset member is a first spring; the second reset member includes two second springs sleeved on the rotating shaft, the two second springs are arranged on both sides of the guide rod, and the supporting feet arranged at both ends of each second spring are respectively limited to the floor drain cover and the guide rod.

11. The floor drain according to claim 6 or 7, characterized in that: A magnet is arranged in the floor drain seat, and the magnet attracts the floor drain cover to flip when the floor drain cover moves downward.

12. The floor drain according to claim 1 or 2, characterized in that: The shape and size of the floor drain cover are adapted to the water inlet; the floor drain cover is in a horizontal state when in the first position, and the top surface of the floor drain cover is flush with the top surface of the floor drain seat.

13. The floor drain according to claim 1 or 2, characterized in that: The floor drain cover is not provided with a water discharge hole, and the floor drain cover closes the water inlet when in the first position.

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