Intelligent drainage and deodorization floor drain

Abstract

The invention provides an intelligent drainage and deodorization floor drain which comprises a floor drain body, the floor drain body comprises a containing cavity, and a grate with water leakage holes is installed at an opening in the top of the containing cavity; the one-way valve element comprises a cylindrical body and a turning plate assembly. The inductive probe is assembled on the upper surface of the grate, and the inductive probe generates a trigger signal when touching water to reach a preset threshold value; the plugging assembly comprises a reset piece, sliding rails and a sliding block, and at least one part of each sliding rail is located below one corresponding water leakage hole; the sliding block is assembled on the sliding rail in a sliding mode and driven by the reset piece to slide to the position below the water leakage hole and seal the water leakage hole. The driving assembly is arranged in the containing cavity and drives the sliding blocks to leave the positions below the corresponding water leakage holes when receiving trigger signals of the inductive probe, and then the water leakage holes of the grate are opened. According to the floor drain, water leakage can be achieved, and meanwhile the good waterproof and insect prevention effects are achieved.

Description

Technical Field

[0001] The invention relates to the field of floor drains, and more particularly to an intelligent drainage and odor-proof floor drain. Background Art

[0002] The floor drain is an important interface connecting the drainage pipe system and the ground, and is an important component of the drainage system. At present, the floor drains used indoors mainly use water seals or one-way valve cores to achieve odor and insect prevention. In the floor drain with water seal, a U-shaped drain pipe is used to store a certain amount of accumulated water so that the drainage pipe is separated from the indoor space. However, after the floor drain is not used for a period of time, the water used for the water seal in the floor drain will dry up, causing the water seal of the floor drain to fail and fail to reflect the dust and insect prevention functions; and the water used for the water seal will easily stink and turn black after a period of time, thereby breeding bacteria and being detrimental to maintaining environmental hygiene; in addition, the water seal structure will cause the drainage pipe to be tortuous, which is easy to cause blockage or affect the drainage volume. In the floor drain with one-way valve core seal for odor prevention, due to the gap between the flap and the valve body, insects can easily crawl into the room, and the odor will still float into the room, and the odor prevention effect is not good. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an intelligent drainage and odor-proof floor drain in view of the problem that the above-mentioned floor drain has poor odor-proof and insect-proof effects.

[0004] The technical solution of the present invention to solve the above technical problems is to provide an intelligent drainage and odor-proof floor drain, comprising:

[0005] A floor drain body, the floor drain body comprising a receiving cavity with a top opening and a bottom opening, and a grate is installed at the top opening of the receiving cavity, the grate has N water leakage holes located on the same circumference, and N is an integer greater than or equal to 2;

[0006] A one-way valve core, comprising a cylindrical body and a flap assembly, wherein the cylindrical body is mounted at the bottom opening of the floor drain body, and the flap assembly is mounted on the cylindrical body and closes the bottom of the cylindrical body when the pressure in the cylindrical body is less than a preset pressure value, and opens the bottom of the cylindrical body when the pressure in the cylindrical body is greater than or equal to the preset pressure value;

[0007] A sensing probe is mounted on the upper surface of the grate, and generates a trigger signal when the sensing probe touches water and reaches a preset threshold;

[0008] The plugging assembly comprises a reset member, N slide rails and N sliders respectively located in the accommodating cavity below the grate, and at least a portion of each of the slide rails is located below a corresponding water leakage hole; the N sliders are respectively slidably assembled on the N slide rails, and driven by the elastic restoring force of the reset member, respectively slide to the bottom of the N water leakage holes and cover the water leakage holes from below the corresponding water leakage holes;

[0009] The driving component is installed in the accommodating cavity below the grate, and when receiving the trigger signal of the sensing probe, drives the N sliders to overcome the elastic restoring force of the reset member and slide away from the corresponding water leakage holes along the slide rails, thereby opening the water leakage holes of the grate.

[0010] As a further improvement of the present invention, the N slide rails are respectively arranged along the radial direction of the circle where the water leakage hole is located.

[0011] As a further improvement of the present invention, the driving assembly includes a control circuit board, a motor and a traction member; the motor is connected to the driving force of N sliders via the traction member; the control circuit board is connected to the sensing probe signal, and controls the motor to rotate when the sensing probe generates a trigger signal, and then the motor and the traction member drive the slider to slide along the corresponding slide rail away from the bottom of the water leakage hole.

[0012] As a further improvement of the present invention, the traction member includes a driving ring and N arc-shaped traction rods, the driving ring is concentrically arranged with the circle where the water leakage hole is located, and one end of each of the arc-shaped traction rods is hinged on the driving ring, and the other end is hinged on a corresponding slider; the motor is transmission connected to the driving ring, and when the driving ring rotates with the motor, it drives the N arc-shaped traction rods to overlap or partially overlap on the top of the driving ring, and at the same time, the arc-shaped traction rods drag the slider along the corresponding slide rail to slide away from the bottom of the water leakage hole.

[0013] As a further improvement of the present invention, the reset member is composed of a torsion spring, one end of which is connected to the floor drain body and the other end is connected to the driving ring, and when the torsion spring is in a free state, N arc-shaped traction rods are respectively stacked above the driving ring under the drive of the driving ring.

[0014] As a further improvement of the present invention, each of the sliding blocks includes a base, a top plate and a compression spring; the base is embedded in the slide rail and has a vertical mounting hole, the size of the top plate is larger than the size of the leakage hole, and the lower surface of the top plate has a vertical connecting rod; the compression spring is installed in the vertical mounting hole, and the top plate is installed to the base in such a way that the vertical connecting rod is inserted into the central through hole of the compression spring, and the two ends of the compression spring are respectively abutted against the base and the top plate.

[0015] As a further improvement of the present invention, each of the top plates has a protrusion on its upper surface, the shape of the protrusion matches the shape of the leakage hole, the height of the protrusion protruding from the upper surface of the top plate matches the thickness of the grate, and the leakage hole is sealed on the slider by embedding the protrusion into the leakage hole.

[0016] As a further improvement of the present invention, the inner edge of the protrusion has a first sliding guide surface, the inner edge of the leakage hole has a second sliding guide surface, and when the sliding block is driven by the driving assembly to leave the bottom of the leakage hole, the first sliding guide surface and the second sliding guide surface cooperate to make the top plate push the compression spring to increase the compression amount.

[0017] As a further improvement of the present invention, the motor is coaxial with the circle where the water leakage hole is located, a radial disc is mounted on the output shaft of the motor, and the drive ring is fixed on the upper surface of the radial disc and rotates with the radial disc.

[0018] As a further improvement of the present invention, the sensing probe is arranged at the geometric center of the upper surface of the grate, the grate has a central through hole, and the sensing probe covers the central through hole and is connected to the control circuit board signal in the accommodating cavity via a wire passing through the central through hole.

[0019] The present invention has the following beneficial effects: the reset member drives the slider on the slide rail to block the water leakage hole on the grate, and the driving component drives the slider to open the water leakage hole according to the trigger signal of the sensing probe, so that the floor drain can achieve better waterproof and insect-proof effects while leaking water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the cross-sectional structure of the intelligent drainage and odor-proof floor drain provided in an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the exploded structure of the grate, sensor probe and plugging assembly in the intelligent drainage and odor-proof floor drain provided in an embodiment of the present invention.

[0022] Figure 3 It is a schematic diagram of a blocking component when the water leakage hole of the grate in the intelligent drainage and odor-proof floor drain provided by an embodiment of the present invention is opened.

[0023] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of part A in the middle.

[0024] Figure 5 yes Figure 3 A top view of the smart drainage and odor-proof floor drain.

[0025] Figure 6It is a schematic diagram of a blocking component when sealing a water leakage hole in a grate of an intelligent drainage and odor-proof floor drain provided by an embodiment of the present invention.

[0026] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure of part B in the middle.

[0027] Figure 8 yes Figure 6 A top view of the smart drainage and odor-proof floor drain.

[0028] Fig. 9 It is a schematic diagram of the working principle of the intelligent drainage and odor-proof floor drain provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] like Figure 1 , Figure 2 , which is a schematic diagram of an intelligent drainage and odor-proof floor drain provided by an embodiment of the present invention, and the intelligent drainage and odor-proof floor drain can be applied to kitchens, bathrooms, etc., and realizes intelligent drainage and odor-proofing. The intelligent drainage and odor-proof floor drain of this embodiment includes a floor drain body 10, a one-way valve core 20, a grate 30, a sensing probe 40, a plugging assembly, and a driving assembly 60, wherein the intelligent drainage and odor-proof floor drain is installed at the drain outlet on the floor of the kitchen or bathroom through the floor drain body 10, and the one-way valve core 20, the grate 30, the sensing probe 40, the plugging assembly, and the driving assembly 60 are respectively assembled to the floor drain body 10, and realize the drainage of the kitchen or bathroom.

[0031] The floor drain body 10 can be made of a metal material or a hard polymer material that is not easy to rust, and includes a receiving chamber 11 with a top opening and a bottom opening. The top opening and the bottom opening of the receiving chamber 11 can be circular, or the top opening of the receiving chamber 11 can be square. The grate 30 can also be made of a metal material or a hard polymer material that is not easy to rust, and can be installed at the top opening of the receiving chamber 11. The main body of the grate 30 is roughly flat and matches the shape of the top opening of the receiving chamber 11. The grate 30 has N water leakage holes 31, where N is an integer greater than or equal to 2. These water leakage holes 31 can be respectively composed of through holes that penetrate the upper and lower surfaces of the grate 30, and these water leakage holes 31 are all located on the same circumference, for example, the water leakage holes 31 are located on the circumference with the geometric center of the grate 30 as the center.

[0032] The one-way valve core 20 includes a cylindrical body 21 and a flap assembly 22, and the cylindrical body 21 and the flap assembly 22 can be made of hard materials such as engineering plastics, respectively, wherein the cylindrical body 21 is installed at the bottom opening of the floor drain body 10 (for example, the cylindrical body 21 and the floor drain body 10 can be threadedly connected), and the flap assembly 22 is installed on the cylindrical body 21, and the bottom of the cylindrical body 21 is closed when the pressure in the cylindrical body 21 (formed by the gravity of water flowing into the cylindrical body 21) is less than a preset pressure value, and the bottom of the cylindrical body 21 is opened when the pressure in the cylindrical body 21 is greater than or equal to the preset pressure value, thereby achieving odor prevention and water release.

[0033] The sensing probe 40 may be a water level sensor or a similar sensor, which is mounted on the upper surface of the grate 30, for example, at the geometric center of the upper surface of the grate 30, and the sensing probe 40 generates a trigger signal when the water level reaches a preset threshold, and does not generate a trigger signal when the sensing probe 40 does not reach the preset threshold or drops from the preset threshold to below the preset threshold. The above preset threshold can be set according to actual conditions. For example Fig. 9 As shown, when the water 70 above the sensing probe 40 reaches a certain height (eg, 1 mm), the sensing probe 40 generates a trigger signal. In one embodiment of the present invention, the trigger signal may be a continuous signal.

[0034] The plugging assembly is installed in the accommodating cavity 11 of the floor drain body 10, and includes a reset member 51, N slide rails 52 and N sliders 53, wherein at least a portion of each slide rail 52 is located below a corresponding water leakage hole 31 (the other portion of the slide rail 52 is not located below the water leakage hole 31), and in particular, the N slide rails 52 can be located on a plane parallel to the grate 30. The N sliders 53 are slidably assembled on the N slide rails 52, that is, the N sliders 53 can slide on the N slide rails 52 respectively. The reset member 51 is used to push the slider 53 to slide under the N water leakage holes 31 and cover the corresponding water leakage holes 31 from below the water leakage holes 31, that is, the N sliders 53 are driven by the reset member 51 to slide under the N water leakage holes 31 along their respective slide rails 52, and block the corresponding water leakage holes 31 from below the corresponding water leakage holes 31, thereby preventing odor in the sewer pipe and the cylindrical body 21 of the one-way valve core 20 from overflowing from the water leakage holes 31 or insects from crawling out of the water leakage holes 31.

[0035] The driving assembly 60 is installed in the accommodating cavity 11 below the grate 30, and when receiving the trigger signal of the sensing probe 40, it drives N sliders 53 to slide along the slide rails 52 and leave the corresponding leakage holes 31, thereby opening the leakage holes 31 of the grate 30, so that the water above the grate 30 can flow into the bottom of the grate 30 through the leakage holes 31, and then be discharged into the sewer pipe through the one-way valve core 20, thereby achieving drainage.

[0036] The above-mentioned intelligent drainage and odor-proof floor drain drives the slider 53 on the slide rail 52 through the reset member 51 to block the water leakage hole 31 on the grate 30, and the driving component 60 drives the slider 53 to open the water leakage hole 31 according to the trigger signal of the sensor probe 40, so that the floor drain can achieve good waterproof and insect-proof effects while leaking. In addition, since the floor drain does not need to be drained in most cases, the above-mentioned intelligent drainage and odor-proof floor drain can keep the water leakage hole 31 of the grate 30 closed through the reset member 51 without consuming electric energy. In addition, since the sensor probe 40 is arranged on the upper surface of the grate 30, the water leakage hole 31 of the grate 30 is opened before the flap assembly 22 of the one-way valve core 20, and is closed before the flap assembly 22 of the one-way valve core 20, rather than being opened and closed at the same time, so it can effectively prevent the sewer pipe from being directly connected to the top of the floor drain, and better reduce the return of odor.

[0037] In one embodiment of the present invention, in the plugging assembly, N slide rails 52 are respectively arranged along the radial direction of the circle where the water leakage hole 31 is located. This structure is conducive to reducing the overall volume of the plugging assembly. In particular, the above-mentioned slide rails 52 can be directly fixed to the grate 30, thereby avoiding assembly errors in the later assembly and causing the water leakage hole 31 to be not tightly closed.

[0038] In one embodiment of the present invention, the driving assembly 60 includes a control circuit board (not shown in the figure), a motor 61 and a traction member, wherein the control circuit board may have a battery or be connected to the battery, and the control circuit board may have a motor driving circuit, and the motor driving circuit drives the motor 61 to operate. The motor 61 is connected to the N sliders 53 via the traction member, that is, when the motor 61 is in operation, the traction member can drive the slider 53 to slide along the slide rail 52. The control circuit board is connected to the sensing probe 40 signal, and controls the motor 61 to rotate when receiving the trigger signal of the sensing probe 40, and then the motor 61 and the traction member drive the slider 53 to slide along the corresponding slide rail 52 away from the bottom of the water leakage hole 31. Once the motor 61 stops running (the sensing probe 40 stops outputting the trigger signal), the slider 53 slides along the slide rail 52 again under the action of the reset member 51 and leaves the bottom of the water leakage hole 31. Through the above structure, the water leakage hole 31 can be opened with very little electric energy.

[0039] In particular, one end of each of the above-mentioned slide rails 52 is located below the corresponding water leakage hole 31, that is, when the slider 53 slides to this end, it can just block the water leakage hole, so that when the driving motor 61 rotates, there is no need to consider the number of rotations, rotation angle, etc. of the motor 61, so that the control logic of the driving component 60 is relatively simple.

[0040] In one embodiment of the present invention, the traction member includes a driving ring 63 and N arc-shaped traction rods 62, wherein the driving ring 63 is annular and concentric with the circle where the water leakage hole 31 is located, and one end of each arc-shaped traction rod 62 is hinged on the driving ring 63, and the other end is hinged on a corresponding slider 53, that is, the two ends of the arc-shaped traction rod 62 can rotate relative to the driving ring 63 and the slider 53 respectively. The motor 61 is connected to the driving ring 63 in transmission, and when the driving ring 63 rotates with the motor, it drives the N arc-shaped traction rods 62 to overlap or partially overlap the driving ring, and at the same time, the arc-shaped traction rod 62 drags the slider 53 along the corresponding slide rail 52 to slide away from the bottom of the water leakage hole 31, as shown in FIG. Figure 3 , Figure 5 Through the above structure, the transmission connection between the motor 61 and each slider 53 can be simplified. It can be understood by those skilled in the art that the above drive ring 63 can also be in the shape of a disk or other positive multi-deformed ring.

[0041] Specifically, the motor 61 can be installed below the grating 30 and coaxial with the circle where the water leakage hole 31 is located, that is, the motor 61 is coaxial with the drive ring 63, and the extension lines of each slide rail 52 converge on the output shaft of the motor 61. The output shaft of the motor 61 is also equipped with a radial disc, and the drive ring 63 is fixed on the upper surface of the radial disc and rotates with the radial disc. In practical applications, the output shaft of the motor 61 can also be connected to the drive ring 63 through a transmission gear set, a transmission belt, etc., which will not be repeated here.

[0042] In one embodiment of the present invention, the reset member 51 for sliding the slider 53 to the bottom of the water leakage hole 31 (when the motor 61 is stopped) is composed of a torsion spring, one end of which is connected to the floor drain body 10 (fixed or abutted), and the other end is connected to the drive ring 63 (fixed or abutted), and when the torsion spring is in a free state (when the motor 61 is stopped), the N arc-shaped traction rods 62 are driven by the drive ring 63 to leave the top of the drive ring 63 respectively, and push each slider 53 to block the bottom of the water leakage hole 31, as shown in FIG. Figure 6 , Figure 8 The above structure is relatively simple and easy to assemble, and can also well realize the reset of each slider 53.

[0043] Specifically, a bayonet or a block can be provided on the driving ring 63 and the floor drain body 10 to facilitate the connection and fixation with the torsion spring. In practical applications, one end of the torsion spring can also be connected to the housing of the motor 61, that is, the torsion spring is indirectly connected to the floor drain body 10, rather than directly connected.

[0044] like Figure 4As shown, in one embodiment of the present invention, each slider 53 includes a base 534, a top plate 531 and a compression spring 535, wherein the base 534 is embedded in the slide rail 52 and can slide along the slide rail 52, the size of the top plate 531 is larger than the size of the leakage hole 31, and the lower surface of the top plate 531 has a vertical connecting rod 533. The base 534 has a vertical mounting hole (for example, the vertical mounting hole can be a blind hole with an opening located on the top surface of the base 534), the compression spring 535 is installed in the vertical mounting hole, and the top plate 531 is installed to the base 534 in a manner that the vertical connecting rod 533 is inserted into the central through hole of the compression spring 535, and the two ends of the compression spring 535 are respectively abutted against the base 534 and the top plate 531, so that the compression spring 535 can continuously apply an upward thrust to the top plate 531, so that the top plate 531 is close to the lower surface of the grate 30, so that when the top plate 531 is located below the leakage hole 31, the leakage hole 31 can be better blocked.

[0045] Specifically, the slide rail 52 may have a C-shaped groove, and the bottom of the base 534 may have two wing plates embedded in the C-shaped groove, so that the base 534 can slide along the slide rail 52 without being separated from the slide rail. In addition, the C-shaped groove may be replaced by a strip hole, and the bottom of the base may have a protrusion (such as a stud) passing through the strip hole, and the base may be assembled on the slide rail 52 by fixing the protrusion with a fastener (such as a nut).

[0046] In one embodiment of the present invention, the upper surface of the top plate 531 has a protrusion 532, the shape of the protrusion 532 is adapted to the shape of the water leakage hole 31, and the height of the protrusion 532 protruding from the upper surface of the top plate 531 is adapted to the thickness of the grate 30. When the slider 53 slides along the slide rail 52 to below the water leakage hole 31, the top plate 531 pushes the protrusion 532 to embed into the water leakage hole 31 under the thrust of the compression spring 535, so as to better cover the water leakage hole 31. Figure 7 , Figure 8 In particular, the protrusion 532 may be formed by an elastic pad (such as elastic silica gel, etc.) adhered to the upper surface of the top plate 531 to better seal the water leakage hole 31 and prevent the odor from leaking out.

[0047] In addition, in order to facilitate the protrusion 532 to withdraw from the leakage hole 31 when the motor 61 is running, the inner edge of the protrusion 532 (i.e., the side facing the center of the driving ring 63) is provided with a first sliding guide surface, and correspondingly, the inner edge of the leakage hole 31 is provided with a second sliding guide surface. The above-mentioned first sliding guide surface and the second sliding guide surface are both composed of inclined surfaces or arc surfaces, and when the slider 53 is driven to leave the bottom of the leakage hole 31, the first sliding guide surface and the second sliding guide surface cooperate to make the top plate 531 push the compression spring to increase the compression amount, thereby causing the protrusion 532 to withdraw from the leakage hole 31.

[0048] In one embodiment of the present invention, the sensing probe 40 is disposed at the geometric center of the upper surface of the grate 30, and the grate 30 has a central through hole. The sensing probe 40 covers the central through hole and is connected to the control circuit board signal in the accommodating cavity 11 via a wire passing through the central through hole. The above structure can better confirm whether there is water above the floor drain, thereby facilitating drainage of the floor drain.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An intelligent drainage and odor-proof floor drain, characterized in that: include: A floor drain body, the floor drain body comprising a receiving cavity with a top opening and a bottom opening, and a grate is installed at the top opening of the receiving cavity, the grate has N water leakage holes located on the same circumference, and N is an integer greater than or equal to 2; A one-way valve core, comprising a cylindrical body and a flap assembly, wherein the cylindrical body is mounted at the bottom opening of the floor drain body, and the flap assembly is mounted on the cylindrical body and closes the bottom of the cylindrical body when the pressure in the cylindrical body is less than a preset pressure value, and opens the bottom of the cylindrical body when the pressure in the cylindrical body is greater than or equal to the preset pressure value; A sensing probe is mounted on the upper surface of the grate, and generates a trigger signal when the sensing probe contacts water and reaches a preset threshold; The plugging assembly comprises a reset member, N slide rails and N sliders respectively located in the accommodating cavity below the grate, and at least a portion of each of the slide rails is located below a corresponding water leakage hole; the N sliders are respectively slidably assembled on the N slide rails, and driven by the elastic restoring force of the reset member, respectively slide to the bottom of the N water leakage holes and cover the water leakage holes from below the corresponding water leakage holes; The driving component is installed in the accommodating cavity below the grate, and when receiving the trigger signal of the sensing probe, drives the N sliders to overcome the elastic restoring force of the reset member and slide away from the corresponding water leakage holes along the slide rails, thereby opening the water leakage holes of the grate.

2. The intelligent drainage and odor-proof floor drain according to claim 1 is characterized in that: The N slide rails are respectively arranged along the radial direction of the circle where the water leakage hole is located.

3. The intelligent drainage and deodorizing floor drain according to claim 1 is characterized in that: The driving assembly includes a control circuit board, a motor and a traction member; the motor is connected to the N sliders through the traction member; the control circuit board is connected to the sensing probe signal, and controls the motor to rotate when the sensing probe generates a trigger signal, and then the motor and the traction member drive the slider to slide along the corresponding slide rail away from the bottom of the water leakage hole.

4. The intelligent drainage and odor-proof floor drain according to claim 3 is characterized in that: The traction member includes a driving ring and N arc-shaped traction rods, the driving ring is arranged concentrically with the circle where the water leakage hole is located, and one end of each arc-shaped traction rod is hinged on the driving ring, and the other end is hinged on a corresponding slider; the motor is transmission connected to the driving ring, and when the driving ring rotates with the motor, it drives the N arc-shaped traction rods to overlap or partially overlap on the top of the driving ring, and at the same time, the arc-shaped traction rods drag the slider along the corresponding slide rail to slide away from the bottom of the water leakage hole.

5. The intelligent drainage and odor-proof floor drain according to claim 4 is characterized in that: The reset member is composed of a torsion spring, one end of which is connected to the floor drain body and the other end is connected to the drive ring. When the torsion spring is in a free state, N arc-shaped traction rods are respectively stacked above the drive ring under the drive ring.

6. The intelligent drainage and odor-proof floor drain according to claim 1 is characterized in that: Each of the sliding blocks includes a base, a top plate and a compression spring; the base is embedded in the slide rail and has a vertical mounting hole, the size of the top plate is larger than the size of the leakage hole, and the lower surface of the top plate has a vertical connecting rod; the compression spring is installed in the vertical mounting hole, and the top plate is installed to the base in a manner that the vertical connecting rod is inserted into the central through hole of the compression spring, and the two ends of the compression spring are respectively abutted against the base and the top plate.

7. The intelligent drainage and deodorizing floor drain according to claim 6 is characterized in that: The upper surface of each top plate has a protrusion, the shape of the protrusion is adapted to the shape of the leakage hole, the height of the protrusion protruding from the upper surface of the top plate is adapted to the thickness of the grating, and the leakage hole is sealed by the slider in a manner that the protrusion is embedded in the leakage hole.

8. The intelligent drainage and deodorizing floor drain according to claim 7, characterized in that: The inner edge of the protrusion has a first sliding guide surface, the inner edge of the leakage hole has a second sliding guide surface, and when the slider is driven by the driving component to leave the bottom of the leakage hole, the first sliding guide surface and the second sliding guide surface cooperate to make the top plate push the compression spring to increase the compression amount.

9. The intelligent drainage and deodorizing floor drain according to claim 4, characterized in that: The motor is coaxial with the circle where the water leakage hole is located; a radial disc is mounted on the output shaft of the motor, and the driving ring is fixed on the upper surface of the radial disc and rotates with the radial disc.

10. The intelligent drainage and deodorizing floor drain according to claim 4, characterized in that: The sensing probe is arranged at the geometric center of the upper surface of the grate. The grate has a central through hole. The sensing probe covers the central through hole and is connected to the control circuit board signal in the accommodating cavity via a wire passing through the central through hole.

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