Convertible Switch-Type Floor Drain

Abstract

The present invention provides a convertible switch-type floor drain, comprising a floor drain base, a filter screen, and a sealing device. The sealing device comprises a sealing mechanism and a switch device thereof. The sealing mechanism operates inside the floor drain base below the top of the floor drain base. A height-adjustable upper push-on decorative cover is also connected to the upper end of the sealing device, and the installation height of the upper push-on decorative cover can be adjusted. The size of the upper push-on decorative cover is smaller than the size of the upper part of the inner hole of the floor drain base, and can be sunk into the upper part of the inner hole of the floor drain base. The present invention can conveniently and flexibly convert between the use modes of an ordinary switch-type floor drain and a sinking switch-type floor drain, and can realize the direct disassembly and assembly of the conversion structure without involving the disassembly and replacement of the internal structure of the device. Even non-professionals can operate it very conveniently, which can bring great convenience to the manufacturing and stocking of manufacturers and sellers, and consumers can also flexibly choose and apply according to actual conditions.

Description

Technical Field

[0001] The invention relates to a floor drain. Background Art

[0002] The floor drains with switch functions on the market are equipped with a switch mechanism inside. The fixing base of the switch mechanism is connected to the filter, and the top of the lifting shaft of the switch structure is connected to the upper cover. When operating, press once to close the floor drain, and press again to open the floor drain. The current floor drains of this type need to drain water from the gap between the upper cover, which is higher than the ground (the top mounting surface of the base) when opened, and the base below it. That is, when the floor drain is closed, the upper cover is basically flush with the ground (the top mounting surface of the base), and when the floor drain is opened, the upper cover protrudes at a certain height from the ground (the top mounting surface of the base). Since the floor drain is normally in the open state, it is easy for toes to kick or get stuck in the gap between the upper cover and the base, causing injury.

[0003] The inventor invented a sinking switch type floor drain to solve the above problems.

[0004] For customers, being able to flexibly choose from these two model structures will undoubtedly bring great convenience to manufacturing and stocking, while consumers can also flexibly choose and apply according to actual conditions. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a switchable floor drain that can be flexibly switched between a conventional switchable floor drain and a sunken switchable floor drain. To this end, the present invention adopts the following technical solutions:

[0006] A switchable floor drain comprises a floor drain base, a filter screen, and a sealing device. The sealing device comprises a sealing mechanism and a switch device thereof. The sealing mechanism operates between a lower stop position and an upper stop position by means of external force pressing the sealing mechanism and accumulating and releasing energy in a lifting spring, so that the sealing mechanism can rise to an open position and fall to a closed position. The invention is characterized in that:

[0007] The sealing mechanism operates inside the floor drain base below the top of the floor drain base;

[0008] A height-adjustable upper press decorative cover is also connected to the upper end of the sealing device, and the installation height of the upper press decorative cover can be adjusted. The size of the upper press decorative cover is smaller than the size of the upper part of the inner hole of the floor drain base, and can be sunk into the upper part of the inner hole of the floor drain base.

[0009] On the basis of adopting the above technical solutions, the present invention may also adopt the following further technical solutions or use these further technical solutions in combination:

[0010] The height-adjustable upper push-on decorative cover has two optional installation height modes; in the first height mode, the upper push-on decorative cover is located above the floor drain base when the sealing device is in the open state, and when the sealing device is in the closed state, the upper push-on decorative cover descends and is located in the upper end portion of the inner hole of the floor drain base; in the second height mode, the upper push-on decorative cover is located in the upper end portion of the inner hole of the floor drain base when the sealing device is in the open state, and when the sealing device is in the closed state, the upper push-on decorative cover descends and sinks into the inner hole of the floor drain base, and is located below the upper end of the inner hole of the floor drain base. When the upper push-on decorative cover is located in the upper end portion of the inner hole of the floor drain base, the gap between it and the inner hole wall of the floor drain base or / and the holes of the upper push-on decorative cover itself provide a water passage.

[0011] The upper end of the sealing device is provided with a connection portion for installing an upper pressing decorative cover with adjustable height.

[0012] The switch device is provided with a lifting shaft, and the sealing mechanism includes a sealing plug, which is fixedly connected to the upper end of the lifting shaft. The upper end of the sealing plug is provided with a threaded connection structure just above the lifting shaft as a connection part.

[0013] The height-adjustable upper press decorative cover has two selectable installation height modes by connecting or not connecting a conversion joint.

[0014] The height-adjustable upper press decorative cover includes a decorative cover body, and the height-adjustable upper press decorative cover is also configured with a conversion joint spare part; the conversion joint is provided with an upper connecting structure and a lower connecting structure, and the lower connecting structure is matched and connected with the connecting part of the upper end of the sealing device; the decorative cover body is provided with a connecting structure, and the connecting structure of the decorative cover body is matched and connected with the connecting part of the upper end of the sealing device; the upper connecting structure is matched and connected with the connecting structure of the decorative cover body; when in the first height mode, the decorative cover body is connected to the upper connecting structure of the conversion joint, and the lower connecting structure of the conversion joint is connected to the connecting part of the upper end of the sealing device; when in the second height mode, the connecting structure of the decorative cover body is connected to the connecting part of the upper end of the sealing device.

[0015] The threaded connection structure provided at the upper end of the sealing plug is sunk into the groove in the middle part of the sealing plug.

[0016] The inner hole wall of the floor drain base has a first annular step and a second annular step, the first annular step is above the second annular step, the size of the upper pressing decorative cover and the sealing plug in the sealing mechanism is smaller than the size of the upper inner hole wall between the first annular step and the top mounting surface, and a floor drain drainage passage is formed between the sealing plug and the upper inner hole wall; the sealing mechanism matches the size of the inner hole wall below the second annular step to form a sealed fit; through the control of the lifting control mechanism in the switch device, the sealing plug runs in the space between the first annular step and the top mounting surface and the inner hole space below the second step surface, and rises to the open position and descends to the closed position.

[0017] The floor drain base has an inner hole and a top mounting surface, the switch device includes a fixing component, a lifting shaft and a lifting spring thereof, the sealing plug is connected to the lifting shaft, and a lifting control mechanism is arranged between the fixing component and the lifting component, the lifting control mechanism provides two upper and lower stop positions, so that the lifting shaft can stay at two different heights and run between the lower stop position and the upper stop position with the help of external force pressing and the energy storage and release of the lifting spring, so that the sealing plug can rise to the open position and fall to the closed position; the lifting control mechanism is provided with the spring that pushes the lifting shaft from bottom to top, the spring stores energy when applying an external pressing force to the upper pressing decorative cover, and releases the energy after the external force is released; the lifting control mechanism is provided with upper and lower gears corresponding to the upper and lower stop positions and a slide groove between the two gears, and the lifting control mechanism is also provided with a stop hook that cooperates with the gear and the slide groove.

[0018] The height-adjustable upper push-on decorative cover is equipped with a conversion joint and has two optional installation height modes; in the first height mode, the upper push-on decorative cover is installed with the conversion joint, and when the sealing mechanism is lowered and in the closed state, the periphery of the decorative cover body is basically flush with the top mounting surface of the floor drain base; in the second height mode, the upper push-on decorative cover is not installed with the conversion joint, and when the sealing device is in the open state, the periphery of the decorative cover body is basically flush with the top mounting surface of the floor drain base.

[0019] Due to the adoption of the technical solution of the present invention, it is possible to flexibly switch between the use modes of ordinary switch-type floor drains and sunken switch-type floor drains, and the direct disassembly and assembly of the conversion structure can be achieved without involving the disassembly and replacement of the internal structure of the device. Even non-professionals can operate it very conveniently, which can bring great convenience to the manufacturing and stocking of manufacturers and sellers, and consumers can also flexibly choose and apply it according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an exploded view of an embodiment of the present invention.

[0021] Figure 2This is a cross-sectional view of an embodiment of the present invention when converted into a common switch-type floor drain and when it is opened.

[0022] Figure 3 This is a cross-sectional view of an embodiment of the present invention when converted into a common switch-type floor drain and when closed.

[0023] Figure 4 This is a cross-sectional view of an embodiment of the present invention when it is converted into a sinking switch type floor drain and is opened.

[0024] Figure 5 This is a cross-sectional view of an embodiment of the present invention when it is converted into a sinking switch type floor drain and is closed.

[0025] Figure 6 This is a front view of the one-way slide and gear position of the lifting shaft. DETAILED DESCRIPTION

[0026] Referring to the accompanying drawings, the switchable floor drain of the present invention comprises a floor drain base 1, a filter screen 4, and a sealing device. The sealing device comprises a sealing mechanism and a switch device 2 thereof. The sealing mechanism operates between a lower stop position and an upper stop position by means of external force pressing the sealing mechanism and accumulating and releasing energy in a lifting spring 23, enabling the sealing mechanism to rise to an open position and fall to a closed position.

[0027] The floor drain base 1 has an inner hole 10 and a top mounting surface 14. The floor drain base is connected to the floor or the bottom surface of the integrated bathroom to which it is applied, and can be connected by bonding.

[0028] The switch device 2 includes a fixed component 21, a lifting shaft 22, and a lifting spring 23 therefor. The fixed component has a guide hole 211 for the lifting shaft 22 to move up and down. The lifting spring 23 is disposed between the lifting shaft 22 and the fixed component 21. A lifting control mechanism is disposed between the fixed component 21 and the lifting shaft 22. The lifting control mechanism provides two upper and lower stop positions, allowing the lifting shaft 22 to stop at two different heights. The mechanism can be pressed by an external force and the energy stored and released by the lifting spring 23 to move between the lower and upper stop positions, allowing the sealing mechanism to be raised to the open position and lowered to the closed position.

[0029] The sealing mechanism operates inside the floor drain base below the top of the floor drain base; the sealing mechanism includes a sealing plug 31, a sealing ring 32 can be provided around the sealed periphery, and the sealing plug 31 is fixedly connected to the upper end of the lifting shaft 22 by a thread.

[0030] A height-adjustable upper push-on decorative cover is also connected to the upper end of the sealing device, and the installation height of the upper push-on decorative cover can be adjusted. The size of the upper push-on decorative cover is smaller than the size of the upper part of the inner hole 10 of the floor drain base, and can be sunk into the upper part of the inner hole 10 of the floor drain base.

[0031] Preferably, the height-adjustable upper press decorative cover has two optional installation height modes; the first height mode corresponds to a common switch type floor drain (see Figure 2 、 3 ), when the sealing device is in the open state, the upper pressing decorative cover is located above the floor drain base 1, and when the sealing device is in the closed state, the upper pressing decorative cover descends and is located in the upper end portion of the inner hole 10 of the floor drain base; the second height mode corresponds to the sinking switch type floor drain (see Figure 4 、 5 ), when the sealing device is in the open state, the upper push-on decorative cover is located in the upper port portion of the inner hole 10 of the floor drain base; when the sealing device is in the closed state, the upper push-on decorative cover descends and sinks into the inner hole 10 of the floor drain base, and is located below the upper end of the inner hole of the floor drain base; when the upper push-on decorative cover is located in the upper port portion of the inner hole of the floor drain base, the gap 200 between it and the inner hole wall of the floor drain base provides a water passage.

[0032] The upper end of the sealing device is provided with a connection portion for mounting a height-adjustable upper push-on decorative cover. In this embodiment, the height-adjustable upper push-on decorative cover has two selectable installation heights by connecting or disconnecting the conversion connector 7. The height-adjustable upper push-on decorative cover can also be adjusted by configuring connecting rods of varying lengths to connect to the upper connection portion of the sealing device.

[0033] Preferably, the upper connection portion of the sealing device is arranged at the position of the upper end of the sealing plug 31 directly above the lifting shaft 22, and is a threaded connection structure 33. The threaded connection structure 33 can adopt an external threaded column, which is convenient for installation and improves the pressing support strength and sealing reliability; and the upper end of the sealing plug 31 can also be conveniently provided with a groove 34, and the threaded connection structure 33 can be sunk into the groove 34 in the middle of the sealing plug, so that in the second height mode, the decorative cover body 6 of the upper decorative cover can be close to the sealing plug 31, which helps to reduce the volume of the floor drain and improve the operating feel in the second height mode.

[0034] Optionally, the upper connection portion of the sealing device may also be provided at the top end of the lifting shaft 22 , but this will increase the difficulty of manufacturing and installing the parts and require the configuration of a sealing structure.

[0035] In this embodiment, the height-adjustable upper press decorative cover includes a decorative cover body 6, and the height-adjustable upper press decorative cover is also configured with a conversion joint as a spare part; the conversion joint 7 is provided with an upper connecting structure 71 and a lower connecting structure 72, and the lower connecting structure 71 is matched and connected with the connecting part (threaded connecting structure 33, so that the lower connecting structure 71 is an internal thread structure) at the upper end of the sealing device; the decorative cover body 6 is provided with a connecting structure 61, and the connecting structure 61 of the decorative cover body 6 is matched and connected with the connecting part (threaded connecting structure 33, so that the connecting structure 61 is an internal thread structure) at the upper end of the sealing device; the upper connecting structure 72 is matched and connected with the connecting structure 61 of the decorative cover body (so that the upper connecting structure 72 is an external thread column); when in the first height mode, the decorative cover body 6 is connected to the upper connecting structure 72 of the conversion joint 7, and the lower connecting structure 71 of the conversion joint 7 is connected to the threaded connecting structure 33 of the connecting part at the upper end of the sealing device; when in the second height mode, the connecting structure 61 of the decorative cover body is connected to the threaded connecting structure 33 of the connecting part at the upper end of the sealing device. The assembly connections used for conversion are all detachable connections, and the disassembly and replacement operations are limited to these, which is very convenient.

[0036] When applied to the second height mode, the present invention can drain water without the decorative cover protruding from the ground when pressed upwards, and will not be kicked during use, which is safe and beautiful.

[0037] The inner hole wall 10 of the floor drain base has a first annular step 11 and a second annular step 12, and the first annular step 11 is above the second annular step 12. The size of the sealing mechanism (such as the outer contour of the combination of the sealing plug 31 and the sealing ring 32) is smaller than the size of the upper inner hole wall between the first annular step 11 and the top mounting surface 14, and a floor drain drainage passage 100 is formed between them. The sealing mechanism matches the size of the lower inner hole wall 101 below the second annular step 12 to form a sealed fit. Similarly; through the control of the lifting control mechanism, the sealing mechanism operates in the space between the first annular step 11 and the top mounting surface 14 and the inner hole space below the second step surface 12, and rises to the open position and descends to the closed position.

[0038] Part of the structure of the lifting control mechanism is arranged on the lifting shaft 22, and the other part of the structure is connected to the fixed component 21; wherein, the structure of the lifting control mechanism on the fixed component 21 can be a hook 24 fixed to the fixed component, and the structure on the lifting shaft 22 can be two upper and lower gears arranged on the surface of the lifting shaft 22, namely the upper gear 301 and the lower gear 302, as well as a first one-way slide of the hook hook portion that enables the lifting shaft 22 to move from the upper gear position to cooperate with the hook portion of the hook 24 to the lower gear position to cooperate with the hook hook portion, and a second one-way slide that enables the lifting shaft 22 to move from the lower gear position to cooperate with the hook hook portion to the upper gear position to cooperate with the hook hook portion; the first one-way slide includes an upward first slide section 81 starting from the upper gear position and a second slide section 82 connected to the first slide section to the lower gear; the second one-way slide includes a third slide section 83 starting from the lower gear position and a downward fourth slide section 84 connected to the third slide section, and the fourth slide section is connected to the first slide or connected to the first gear position.

[0039] To achieve unidirectional relative movement between the chute and the hook portion 24, this can be achieved through either the chute wall design or the chute bottom design. In this embodiment, the chute bottom design is used, resulting in more reliable switch operation and longer service life. The solution is as follows: the first and second chute sections are connected in a stepped manner. At the connection 91, the chute bottom of the second chute section is lower than the chute bottom of the first chute section. The third and fourth chute sections are connected in a stepped manner. At the connection 92, the chute bottom of the fourth chute section is lower than the chute bottom of the third chute section. The second chute section has a downward step 93 near the lower gear position and connects to the third chute section. The fourth chute section is connected in a stepped manner to the first chute section. At the connection 94, the chute bottom of the first chute section is lower than the chute bottom of the fourth chute section.

[0040] The lifting control mechanism can include an axial motion guide structure for the lifting shaft 22 to prevent the vertically movable component 22 from rotating. The hook 24 can swing to a certain degree to engage with the chute on the non-rotating lifting shaft 22. A guide screw can be provided on the fixed component 21, while a slot that mates with the screw can be provided on the lifting shaft 22 to ensure that the lifting shaft 22 only performs lifting motion without rotating. Alternatively, the axial motion guide structure can be omitted, allowing the lifting shaft 22 to rotate a certain angle to achieve engagement between the chute and the hook. However, this does not provide the same comfortable feel during use. The structures of the lifting control mechanism on the fixed component 21 and on the lifting shaft 22 are interchangeable.

[0041] The lifting spring 23 stores energy when a pressing force is applied to the upper pressing decorative cover, and releases the energy after the external force is released.

[0042] The filter screen 4 is provided with a first connection installation part 41, and the first connection part 41 can be a central threaded connection hole. The fixing part 21 of the switch device and the filter screen 4 are threadedly connected as a whole through the first connection part 41. The periphery of the filter screen 4 is provided with a second connection structure, such as a frame 421 with a certain height, and an annular groove 422 is provided on the periphery of the edge to install the sealing ring 5, through which the sealing ring 5 and the floor drain base 1 are clamped. The inner hole wall of the floor drain base is provided with a third limiting step 13 at the lower part of the inner hole wall of the floor drain base, and the third limiting step 13 can bear the frame 421. Above the third limiting step 13, the inner hole wall is provided with a groove for clamping. In this way, when the frame 421 touches the third limiting adjustment 13, the sealing ring 5 installed thereon is just clamped into the groove to form an installation connection and seal, which is very convenient. If the groove is not provided, the limiting step 13 can also be used to indicate that the filter screen 4 is installed in place.

[0043] In this way, the installation requirements for the filter are reduced, the installation is very convenient, and standardized preparation is easy to achieve, which is convenient for manufacturers to manufacture, sellers to stock and users to use.

[0044] The floor drain base 1 can be manufactured by stamping a metal material, and the top mounting surface 14, the first annular step 11, the second annular step 12, the third limiting step 13, and the groove for clamping are formed during the stamping process. Alternatively, the floor drain base 1 can be formed by plastic injection molding, and the top mounting surface 14, the first annular step 11, the second annular step 12, the third limiting step 13, and the groove for clamping are formed during the injection molding process. Alternatively, when injection molding is used, an injection-molded metal decorative edging 16 can be embedded in the outer decorative portion (top mounting surface 14).

[0045] As can be seen from the above, the structure of the present invention, whether it adopts the ordinary mode or the sunken structure, not only ensures smooth drainage, but also does not have as stringent requirements on the installation and connection structure as in the past. It can be directly installed as a whole and replaced and repaired in the form of a snap-on module. The filter screen 4, the sealing mechanism and the switch device, and the upper press decorative cover (with or without the conversion joint 7) form a module that is installed in sequence. It is pre-installed as a whole at the factory. During installation, it can be completed as needed. It is very convenient and does not require other tools. When disassembling, it only needs to be pulled out or pried out directly, and then the conversion joint 7 can be disassembled or installed without the help of other professional tools, and there will be no problem of being unable to be disassembled for a long time.

[0046] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0047] In the description of the present invention, it should be understood that terms such as "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. The terms "first" and "second" are used solely for brevity and are not intended to indicate or imply relative importance.

[0048] Furthermore, in practicing the claimed invention, variations to the disclosed embodiments may be understood and effected by those skilled in the art through a study of the drawings, the disclosure, and the appended claims. Furthermore, in the claims, words such as "comprising" and "including" do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

Claims

1. A switchable floor drain comprising a drain base, a filter screen, and a sealing device, wherein the sealing device comprises a sealing mechanism and a switch device thereof. The sealing mechanism operates between a lower stop position and an upper stop position by means of external force pressing the sealing device and accumulating and releasing energy in a lifting spring, enabling the sealing mechanism to rise to an open position and descend to a closed position; characterized in that: The sealing mechanism operates inside the floor drain base below the top of the floor drain base; A height-adjustable upper press decorative cover is also connected to the upper end of the sealing device, and the installation height of the upper press decorative cover can be adjusted. The size of the upper press decorative cover is smaller than the size of the upper part of the inner hole of the floor drain base, and can be sunk into the upper part of the inner hole of the floor drain base; The height-adjustable upper push-on decorative cover has two optional installation height modes; in the first height mode, the upper push-on decorative cover is located above the floor drain base when the sealing device is in the open state, and when the sealing device is in the closed state, the upper push-on decorative cover descends and is located in the upper end portion of the inner hole of the floor drain base; in the second height mode, the upper push-on decorative cover is located in the upper end portion of the inner hole of the floor drain base when the sealing device is in the open state, and when the sealing device is in the closed state, the upper push-on decorative cover descends and sinks into the inner hole of the floor drain base and is located below the upper end of the inner hole of the floor drain base. When the upper push-on decorative cover is located in the upper end portion of the inner hole of the floor drain base, the gap between the upper push-on decorative cover and the inner hole wall of the floor drain base or / and the holes of the upper push-on decorative cover itself provide a water passage; The upper end of the sealing device is provided with a connection portion for mounting a height-adjustable upper press decorative cover; The switch device is provided with a lifting shaft, and the sealing mechanism includes a sealing plug, which is fixedly connected to the upper end of the lifting shaft, and the upper end of the sealing plug is provided with a threaded connection structure directly above the lifting shaft as a connection part; The height-adjustable upper press decorative cover has two optional installation height modes by connecting or not connecting the conversion joint; The height-adjustable upper press decorative cover includes a decorative cover body, and the height-adjustable upper press decorative cover is also configured with a conversion joint spare part; the conversion joint is provided with an upper connecting structure and a lower connecting structure, and the lower connecting structure is matched and connected with the connecting part of the upper end of the sealing device; the decorative cover body is provided with a connecting structure, and the connecting structure of the decorative cover body is matched and connected with the connecting part of the upper end of the sealing device; the upper connecting structure is matched and connected with the connecting structure of the decorative cover body; when in the first height mode, the decorative cover body is connected to the upper connecting structure of the conversion joint, and the lower connecting structure of the conversion joint is connected to the connecting part of the upper end of the sealing device; when in the second height mode, the connecting structure of the decorative cover body is connected to the connecting part of the upper end of the sealing device.

2. The convertible switch type floor drain according to claim 1, characterized in that: The threaded connection structure provided at the upper end of the sealing plug is sunk into the groove in the middle part of the sealing plug.

3. The convertible switch type floor drain according to claim 1 or 2, characterized in that: The inner hole wall of the floor drain base has a first annular step and a second annular step, the first annular step is above the second annular step, the size of the upper pressing decorative cover and the sealing plug in the sealing mechanism is smaller than the size of the upper inner hole wall between the first annular step and the top mounting surface, and a floor drain drainage passage is formed between the sealing plug and the upper inner hole wall; the sealing mechanism matches the size of the inner hole wall below the second annular step to form a sealed fit; through the control of the lifting control mechanism in the switch device, the sealing plug runs in the space between the first annular step and the top mounting surface and the inner hole space below the second step surface, and rises to the open position and descends to the closed position.

4. The convertible switch type floor drain according to claim 3, characterized in that: The floor drain base has an inner hole and a top mounting surface, the switch device includes a fixing component, a lifting shaft and a lifting spring thereof, the sealing plug is connected to the lifting shaft, and a lifting control mechanism is arranged between the fixing component and the lifting component, the lifting control mechanism provides two upper and lower stop positions, so that the lifting shaft can stay at two different heights and run between the lower stop position and the upper stop position with the help of external force pressing and the energy storage and release of the lifting spring, so that the sealing plug can rise to the open position and fall to the closed position; the lifting control mechanism is provided with the spring that pushes the lifting shaft from bottom to top, the spring stores energy when applying an external pressing force to the upper pressing decorative cover, and releases the energy after the external force is released; the lifting control mechanism is provided with upper and lower gears corresponding to the upper and lower stop positions and a slide groove between the two gears, and the lifting control mechanism is also provided with a stop hook that cooperates with the gear and the slide groove.

5. The switchable floor drain according to claim 1, characterized in that The height-adjustable upper push-on decorative cover is equipped with a conversion joint and has two optional installation height modes; in the first height mode, the upper push-on decorative cover is installed with the conversion joint, and when the sealing mechanism is lowered and in the closed state, the periphery of the decorative cover body is basically flush with the top mounting surface of the floor drain base; in the second height mode, the upper push-on decorative cover is not installed with the conversion joint, and when the sealing device is in the open state, the periphery of the decorative cover body is basically flush with the top mounting surface of the floor drain base.

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