CN112267543A

CN112267543A - Multifunctional floor drain

Info

Publication number: CN112267543A
Application number: CN202011263900.7A
Authority: CN
Inventors: 毛俊琦
Original assignee: Shenzhen Wandexing Water Purification Technology Co ltd
Current assignee: Shenzhen Wandexing Water Purification Technology Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-01-26

Abstract

The invention discloses a multifunctional floor drain, which comprises a base, a floor drain body, a water seal member and a grate, wherein the bottom of the base is provided with a first drainage port; the top end of the inner layer wall is provided with a water collecting port, the inner side of the inner layer wall forms a central floor drain cavity in an enclosed mode, a suspended anti-return ball is arranged in the central floor drain cavity, and the suspended anti-return ball can float upwards in one direction to block the water collecting port; the inner wall is provided with a second water outlet at the bottom of the central cavity of the floor drain, a seesaw sealing device which can only open the second water outlet downwards is arranged at the position of the second water outlet, the floor drain further comprises an alarm device, a rotating shaft of the seesaw sealing device is provided with a non-contact angle sensor which is connected with the alarm device, and the alarm device gives an alarm when the rotating shaft rotates. The floor drain has the capabilities of deodorization, overflow prevention, insect prevention and alarming, and the diversity of product functions is increased.

Description

Multifunctional floor drain

Technical Field

The invention relates to the technical field of floor drains, in particular to a multifunctional floor drain.

Background

The floor drain is an important interface for connecting a drainage system in a house with the indoor floor, and the functions and the quality of deodorization and the like of the floor drain directly influence the indoor air quality because a sewer pipe and a septic tank of the floor drain are communicated with the room space. The old floor drain separates the room space from the pipeline system by water seal formed by water storage, if the water seal of the floor drain is lost or the sealing closure of the floor drain without water seal is not tight, the sewer is not blocked from the room space, toxic and harmful gases such as CO2, CO, methane, fecalulin, hydrogen sulfide and the like contained in the sewer escape from the floor drain along the pipeline and are emitted in the room, so people feel uncomfortable.

At present, the following floor drains are commonly used at home and abroad: 1. water seal floor drain: the traditional water seal floor drain is in a bell-jar type and is buckled on a sewer pipe opening like a buckling bowl structure to form a U-shaped trap, and the sealing effect is achieved by using water seal in the trap. Most water seal floor drains are shallow in water seal and low in water seal amount, and dry due to factors such as time and weather dryness and odor return; and the deeper the water seal height, the more the water drainage speed is affected, the more serious the deposited dirt is, and the cleaning is difficult. 2. Eccentric block type sealing floor drain: the sealing gasket is fixed by a pin at one side and sealed by utilizing the gravity eccentricity principle, so that the sealing is not tight, and the pin is easy to damage to cause failure. 3. Spring type sealing floor drain: the device is divided into an upper spring type and a lower spring type. The upward-elastic type is that the cover plate is pressed, the cover plate is elastic, and the cover plate can reset after being pressed again; the lower spring type is sealed by a spring stretching a sealing gasket at the lower end of the sealing core. The spring is made of ferroboron, so that the spring is easy to rust, the elasticity is gradually weakened until the spring fails, the service life is short, and in addition, the spring is easy to wind hair and fabrics and is not easy to clean. 4. Magnet type sealing floor drain: the magnetic attraction sealing gasket of two magnets is used for sealing, because the water quality of ground water is poor, such as washing articles, brushing the ground and other various reasons, iron impurities in the sewage can be adsorbed on the magnet, after a period of time, the impurity layer can cause the sealing gasket to be incapable of being closed, and in addition, the magnetic force can be gradually attenuated due to the action of a large magnetic field of the earth. 5. Silica gel type sealing floor drain: two pieces of silica gel are used for sealing, dirt stays at the two silicon chips in the drainage process to form a gap, and odor can run out like the gap.

The existing floor drain has poor deodorization effect, meanwhile, the existing floor drain has no function of preventing back overflow, and because the floor drain is connected with the drainage pipeline, if the drainage pipeline is blocked, water in the drainage pipeline can reversely enter the floor drain and overflow the indoor space to cause indoor pollution if the water is drained to the drainage pipeline again.

Furthermore, the existing floor drain also has no insect prevention (cockroach, mouse) function, and the cockroach and mouse in the drainage pipeline can climb into the floor drain through the drainage pipeline to cause blockage, and even enter the room from the floor drain.

Therefore, the prior art has yet to be improved.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a multifunctional floor drain, which has the capabilities of deodorization, overflow prevention, insect prevention and alarming and increases the diversity of product functions.

In order to realize the purpose, the invention adopts the following technical scheme:

a multifunctional floor drain comprises a base arranged in a cushion layer or a reserved hole, a floor drain body sleeved in the base and exposed out of the top end of the base, and a grate covering the top end of the floor drain body, wherein a curved strip-shaped water inlet hole is formed in the grate, an installation opening is formed in the top of the base, a first water outlet is formed in the bottom of the base, and the floor drain body is arranged in the base from the installation opening of the base;

the floor drain body is of a double-wall structure and comprises an outer wall and an inner wall, an opening is formed in the top of the outer wall, the lower portion of the inner wall is connected with the outer wall to form a U-shaped water sealing cavity, and a water collecting port is formed in the top end of the inner wall;

the floor drain also comprises an n-shaped water sealing component buckled at the upper end of the inner layer wall, the edge of the upper end of the water sealing component is lapped at the inner side of the outer layer wall and is provided with an annular water inlet hole, the annular water inlet hole is communicated with the opening at the top of the outer layer wall and a U-shaped water sealing cavity, and the lower end of the water sealing component is inserted into the U-shaped water sealing cavity;

the inner side of the inner layer wall of the floor drain body is enclosed into a floor drain central cavity communicated with the water collecting port, a suspension anti-return ball is arranged in the floor drain central cavity below the water collecting port, and the suspension anti-return ball can float upwards in one direction to block the water collecting port when the drainage pipeline is blocked and wastewater reversely flows into the floor drain;

the inner wall is provided with a second water outlet at the bottom of the central cavity of the floor drain, a seesaw sealing device which can only open the second water outlet downwards is arranged at the position of the second water outlet, and a first water outlet of the base is arranged below the seesaw sealing device.

And the floor drain body and the contact surface of the water seal member and water are provided with nano silver ion layers.

The water seal component comprises a cover plate and an annular water seal plate arranged on the lower end face of the cover plate, the edge of the cover plate is lapped on the inner side of the outer layer wall, and the annular water inlet hole is formed in the edge of the cover plate;

the annular water seal plate is inserted into a U-shaped water seal cavity formed between the outer wall and the inner wall of the floor drain body, and the distance from the annular water seal plate to the outer wall of the floor drain body in the U-shaped water seal cavity is smaller than the distance from the annular water seal plate to the inner wall of the floor drain body, so that the water passing section area flowing downwards in the U-shaped water seal cavity is equal to the water passing section area flowing upwards in the U-shaped water seal cavity.

The edge of the water seal component is provided with a first buckle, the inner side of the outer wall of the floor drain body is provided with a second buckle, the first buckle is connected with the second buckle in a clamping mode, and the edge of the water seal component is provided with the annular water inlet hole on the inner side of the first buckle.

The device comprises a seesaw, a rotating shaft and a balancing weight, wherein the seesaw sealing device comprises a seesaw, a rotating shaft and a balancing weight, the rotating shaft is arranged on the seesaw, the balancing weight is arranged at one end of the seesaw, a non-contact angle sensor is arranged on the rotating shaft and is electrically connected with the alarm device, and when liquid enters a floor drain and the seesaw is opened downwards to cause the rotating shaft to rotate, the angle sensor transmits change signals of current and voltage to the alarm device to cause alarm.

The outer wall of the floor drain body and the inner side of the base are provided with threads which are connected through threads and used for adjusting the installation height of the floor drain body and the base, the thread height of the outer wall of the floor drain body and the thread height of the inner side of the base are both larger than 40mm, and the adjustment installation height is larger than 30 mm.

The lower part of the inner layer wall of the floor drain body is provided with a first bending wall connected with the outer layer wall of the floor drain body, the U-shaped water sealing cavity is formed among the outer layer wall, the first bending wall and the inner layer wall, the top of the inner layer wall is provided with a second bending wall bending towards the center, and the middle opening of the second bending wall forms the water collecting opening;

three clamping jaws are arranged in the central cavity of the floor drain below the second bending wall at intervals of 120 degrees around the water collecting port, and the lower ends of the three clamping jaws are tightened to form a bell mouth to clamp the suspended anti-return ball;

the floor drain central cavity comprises an upper cavity and a lower cavity, the upper cavity and the lower cavity are separated by a suspension anti-return ball, and the upper cavity is communicated with the lower cavity through a hollow position between two adjacent clamping jaws.

The contact position of the second curved wall and the suspension anti-return ball at the water collecting opening is an arc-shaped surface.

Wherein, the inner surface of the U-shaped water seal cavity is a streamline surface;

the upper surface of the second curved wall is also a streamlined surface.

Wherein, the edge of the upper end of the base is also provided with a waterproof wing ring.

The multifunctional floor drain comprises a floor drain body, a water seal member and a water seal member, wherein the floor drain body is arranged on the outer wall and the inner wall of the floor drain body in a double-layer structure, the annular water seal plate at the lower end of the water seal member is inserted between the inner wall and the outer wall to form a U-shaped water seal cavity, and the water seal structure is used for deodorization. The floor drain body is also internally provided with a suspended anti-return ball, and when the drainage pipeline is blocked and water flows reversely, the suspended anti-return ball floats upwards to block the water collecting port and prevent the water in the drainage pipeline from returning and overflowing the floor drain to the indoor space. A seesaw sealing device is further arranged at a second water outlet in the floor drain body, the seesaw sealing device can only be opened towards the lower end, so that pests in the water drain pipeline cannot enter the floor drain through the seesaw sealing device, the effect of preventing the pests from entering a room from the floor drain is achieved, and meanwhile, the seesaw sealing device also has the function of blocking odor and has double deodorization function by being combined with a water sealing structure. Namely, the floor drain of the invention has the functions of deodorization, overflow prevention, insect prevention and alarm at the same time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a first embodiment of the multifunctional floor drain of the invention;

FIG. 2 is a schematic partial structure view of the structure of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the U-shaped water-sealed chamber divided into A, B areas;

FIG. 4 is a schematic view of the suspended anti-backflow ball floating up to block the water collection port of the structure of FIG. 1;

FIG. 5 is an enlarged view of the point C in FIG. 4;

FIG. 6 is a schematic view of the structure of FIG. 1 in an open state;

FIG. 7 is a schematic view of the connection between the jaws and the inner cylinder of the structure of FIG. 1;

FIG. 8 is a schematic structural diagram of the multifunctional floor drain provided with a nano silver ion layer;

FIG. 9 is a partial schematic diagram of the structure of FIG. 8;

fig. 10 is a schematic diagram of a module of the multifunctional floor drain provided with an alarm device.

Description of reference numerals:

100-floor drain, 1-base, 11-mounting port, 12-first drain port, 13-waterproof wing ring, 2-floor drain body, 21-outer wall, 211-opening, 212-sinking platform, 213-second buckle, 22-inner wall, 221-first bending wall, 222-second bending wall, 2221-arc surface, 223-second drain port, 23-U-shaped water seal cavity, 24-water collecting port, 25-floor drain central cavity, 251-upper cavity, 252-lower cavity, 27-water seal surface, 3-grate, 31-curved strip-shaped water inlet hole, 4-water seal member, 41-cover plate, 411-annular water inlet hole, 412-first buckle, 42-annular water seal plate, 5-suspension anti-return ball, 51-clamping jaw, 52-third buckle, 6-a seesaw sealing device, 61-a seesaw, 62-a rotating shaft, 63-a balancing weight, 7-a nano silver ion layer, 8-an alarm device and 9-an angle sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 6, the present invention provides a multifunctional floor drain 100 for discharging waste water and waste liquid, or for monitoring oil leakage in a special situation such as an oil depot, wherein the local floor drain 100 needs to be connected to a monitoring circuit during monitoring. The floor drain 100 comprises a base 1 arranged in a cushion layer or a reserved hole, a floor drain body 2 which is sleeved in the base 1 and exposed out of the top end of the base 1, a grate 3 which is covered on the top end of the floor drain body 2, a curved strip-shaped water inlet hole 31 is formed in the grate 3, an installation opening 11 is formed in the top of the base 1, a first water outlet 12 is formed in the bottom of the base 1, and the floor drain body 2 is installed in the base 1 from the installation opening 11 of the base 1. The base 1 is fixed in the bed course or the preformed hole, the floor drain body 2 is installed in the base 1 and exposes the top, the grate 3 is installed on the top end of the floor drain body 2, and the top surface of the grate 3 is lower than the indoor ground surface so as to collect water on the ground. Preferably, the edge of the upper end of the base 1 of the floor drain 100 of the present invention is further provided with a waterproof wing ring 13. The waterproof wing ring 13 can prevent the water seepage at the contact part of the floor drain 100 and the ground.

The first drain opening 12 of the base 1 is connected to a drain line of a drainage system, for example to a horizontal drain pipe. The curved strip-shaped water inlet holes 31 on the grate 3 are provided with grids, so that hairs and sundries can be intercepted, water can pass through the grids, and the phenomenon that the floor drain 100 is blocked due to the fact that the sundries enter the body 2 of the floor drain is prevented.

The water on the ground enters the body 2 from the curved strip-shaped water inlet hole 31 of the grate 3, then is gathered in the body 2, and when the discharge condition is reached, is discharged from the lower end of the body 2 to the first water discharge hole 12 of the base 1, and then enters the water discharge pipeline.

As shown in fig. 1, the floor drain body 2 of the floor drain 100 of the present invention is a double-walled structure, and comprises an outer wall 21 and an inner wall 22, wherein the top of the outer wall 21 is provided with an opening 211 communicated with the curved strip-shaped water inlet 31, the lower part of the inner wall 22 is connected with the outer wall 21 to form a U-shaped water sealing cavity 23, and the top end of the inner wall 22 is provided with a water collecting port 24. The outer wall 21 is provided with a sinking platform 212 at the edge of the opening 211 for installing the grate 3.

The floor drain 100 further comprises an n-shaped water sealing member 4 buckled at the upper end of the inner layer wall 22, the edge of the upper end of the water sealing member 4 is lapped at the inner side of the outer layer wall 21 and is provided with an annular water inlet hole 411, the annular water inlet hole 411 is communicated with an opening 211 at the top of the outer layer wall 21 and a U-shaped water sealing cavity 23, and the lower end of the water sealing member 4 is inserted into the U-shaped water sealing cavity 23.

After entering the floor drain body 2, water stays in a U-shaped water sealing cavity 23 formed by the inner side wall of the outer layer wall 21 and the inner layer wall 22 from the outer side wall, meanwhile, the upper part of the water collecting port 24 is covered by the water sealing component 4, the lower end of the water sealing component 4 is inserted into the U-shaped water sealing cavity 23 to form water sealing, the water sealing hermetically separates the water collecting port 24 from an opening 211 of the outer layer wall 21 of the floor drain body 2, so that the communication between the curved strip-shaped water inlet hole 31 on the grate 3 and the water collecting port 24 is blocked, therefore, odor emitted by a drainage pipeline is blocked and cannot enter the curved strip-shaped water inlet hole 31 of the grate 3 from the water collecting port 24 to escape and enter indoor polluted air, and the floor drain 100 has a deodorization function.

The top surface of the inner wall 22 of the present invention is flush with the water seal surface 27. The distance between the bottom end of the annular partition plate at the lower part of the water seal member 4 and the top surface of the inner layer wall 22 is the water seal height. Preferably, the distance between the bottom end of the annular partition plate at the lower part of the water seal member 4 of the present invention and the top surface of the inner wall 22 is greater than or equal to 50mm, so that the height of the formed water seal is greater than or equal to 50mm, and thus, even in a high temperature day, the water in the water seal is not completely evaporated to dryness, thereby effectively preventing odor.

Preferably, as shown in fig. 1 and 2, the water sealing member 4 includes a cover plate 41 and an annular water sealing plate 42 disposed on a lower end surface of the cover plate 41, an edge of the cover plate 41 is overlapped on an inner side of the outer layer wall 21 and is provided with the annular water inlet hole 411, and the annular water sealing plate 42 is inserted into the U-shaped water sealing cavity 23 formed between the outer layer wall 21 and the inner layer wall 22 of the floor drain body 2.

The edge of the cover plate 41 is lapped on the inner side of the outer layer wall 21, so that the water seal member 4 is detachably connected with the floor drain body 2, and the water seal member 4 can be conveniently and quickly mounted and maintained.

The upper end of the annular water inlet 411 is communicated with the opening 211 at the top of the outer layer wall 21, and the lower end is communicated with the U-shaped water sealing cavity 23 at the outer side of the annular water sealing plate 42.

Further, as shown in fig. 2 and 3, the distance from the annular water sealing plate 42 to the outer wall 21 of the floor drain body 2 in the U-shaped water sealing cavity 23 is smaller than the distance from the annular water sealing plate to the inner wall 22 of the floor drain body 2, so that the cross-sectional area of the water flowing downwards from the U-shaped water sealing cavity 23 is equal to the cross-sectional area of the water flowing upwards from the U-shaped water sealing cavity. The cross-sectional area a of the water flowing downwards in the U-shaped water seal chamber 23 is equal to the cross-sectional area B of the water flowing upwards as shown in fig. 3, whereby the water velocity of the water flow in the water seal formed by the water seal member 4 is equal to ensure that the head resistance loss of the water flow through the U-shaped water seal chamber 23 is minimal, thereby achieving the maximum drainage capacity of the floor drain 100.

Further, as shown in fig. 5, a first buckle 412 is disposed at an edge of the water sealing member 4, a second buckle 213 is disposed at an inner side of the outer wall 21 of the floor drain body 2, the first buckle 412 is buckled with the second buckle 213, and the annular water inlet 411 is disposed at the edge of the water sealing member 4 at the inner side of the first buckle 412. The snap connection facilitates the installation of the water seal member 4 on the inner side of the outer layer wall 21 of the floor drain body 2, and the taking and the dismounting are very convenient.

As shown in figure 2, the inner side of the inner wall 22 of the floor drain body 2 of the invention is enclosed into a central floor drain cavity 25 communicated with the water collecting port 24, a suspended anti-return ball 5 is arranged in the central floor drain cavity 25 below the water collecting port 24, and the suspended anti-return ball 5 can float upwards in one direction to block the water collecting port 24.

The specific gravity of the suspended anti-return ball 5 is smaller than that of water (namely the specific gravity is smaller than 1), and the suspended anti-return ball can only move upwards in one direction, as shown in figure 4, when the drainage pipeline blocks waste water and reversely flows into the floor drain, the suspended anti-return ball 5 floats upwards under the action of the water and tightly abuts against the position of the water collecting port 24 and does not move upwards, and the suspended anti-return ball 5 abuts against the water collecting port 24 to seal the water collecting port 24, so that the water overflowing from the drainage pipeline upwards flows into the U-shaped water sealing cavity 23 and overflows into a room from the upper end of the grate 3, and the floor drain 100 has the function of preventing overflow due to the arrangement of the suspended anti-return ball 5.

As shown in fig. 2, the lower part of the inner wall 22 of the floor drain body 2 of the invention is provided with a first curved wall 221 connected with the outer wall 21 of the floor drain body 2, the U-shaped water sealing cavity 23 is formed between the outer wall 21, the first curved wall 221 and the inner wall 22, the top of the inner wall 22 is provided with a second curved wall 222 curved towards the center, and the middle opening of the second curved wall 222 forms the water collecting opening 24.

Three clamping jaws 51 are arranged in the central floor drain cavity 25 below the second bent wall 222 and around the water collecting port 24 at intervals of 120 degrees, and the lower ends of the three clamping jaws 51 are in a tightened bell mouth shape to clamp the suspended anti-return ball 5; thus, the suspension anti-return ball 5 is suspended in the central floor drain cavity 25 of the floor drain body 2 under the action of the clamping jaws 51 with the lower ends in the shape of tightened bellmouths and can only move upwards in one direction. The plurality of jaws 51 are hollowed out to allow for normal downward drainage.

Preferably, as shown in fig. 7, a third buckle 52 is arranged below the second curved wall 222 of the present invention to be buckled with the clamping jaw 51.

Referring to fig. 4, the inner wall 22 of the present invention is provided with a second drainage opening 223 at the bottom of the central cavity 25 of the floor drain, a seesaw sealing device 6 capable of opening the second drainage opening 223 only downwards is disposed at the second drainage opening 223, and a first drainage opening 12 of the base 1 is disposed below the seesaw sealing device 6.

Specifically, the seesaw sealing device 6 includes a seesaw 61, a rotating shaft 62 provided on the seesaw 61, and a weight 63 provided at one end of the seesaw 61, and the seesaw 61 is longer than the second drain port 223 and is abutted against the second drain port 223 below the second drain port 223, so that the seesaw sealing device 6 can be opened downward only by the gravity of water.

The range from the inner water collecting port 24 of the inner layer wall 22 of the floor drain body 2 to the upper part of the seesaw sealing device 6 is the range of the central cavity 25 of the floor drain, when no water enters the central cavity 25 of the floor drain of the inner layer wall 22 or the water entering the central cavity 25 of the floor drain of the inner layer wall 22 is less at ordinary times, one end of the seesaw 61 contacting with the second water outlet 223 always bears upward force and is abutted with the second water outlet 223 due to the gravity action of the balancing weight 63, the effect of closing the second water outlet 223 is achieved, pests such as mice and cockroaches entering the first water outlet 12 of the base 1 from a water drainage pipeline and the effect of preventing pests cannot enter the second water outlet 223 due to the blocking of the seesaw sealing device 6 are achieved. When the water in the central cavity 25 of the floor drain of the inner wall 22 is gradually increased and the rotating moment of the seesaw 61 is larger than that of the balancing weight 62, the seesaw 61 of the seesaw sealing device 6 rotates counterclockwise to open the second water outlet 223 for water drainage, as shown in FIG. 6.

Specifically, the central cavity 25 of the floor drain comprises an upper cavity 251 and a lower cavity 252, the upper cavity 251 and the lower cavity 252 are separated by a suspension anti-return ball 5, and the upper cavity 251 is communicated with the lower cavity 252 through a hollow position between two adjacent clamping jaws 51. During drainage, water enters the water collecting port 24 from the U-shaped water sealing cavity 23, then enters the upper cavity 251, then enters the lower cavity 252 through the hollow position between the two adjacent clamping jaws 51, and then is collected in the second drainage port 223 and is blocked by the seesaw 61 of the seesaw sealing device 6, and when the water is increased, the seesaw 61 of the seesaw sealing device 6 rotates to open the second drainage port 223. The provision of the seesaw sealing means 6 enables the floor drain 100 of the present invention to be insect protected.

The construction of the floor drain 100 of the present invention creates a siphoning phenomenon: when water flow on the ground enters the floor drain 100, the water flow firstly passes through the U-shaped water sealing cavity 23 and then reaches the floor drain central cavity 25 in the inner layer wall 22 through the water collecting port 24 and is collected above the seesaw sealing device 6, then the seesaw sealing device 6 is opened in a gravity flow mode to discharge water to the horizontal drainage pipe connected with the base 1 of the floor drain 100, along with the continuous increase of the water flow, the water at the lower part of the floor drain central cavity 25 can be gradually filled, because the second water outlet 223 at the seesaw sealing device 6 is lower than the height of the ground water leakage cover 27, negative pressure can be formed at the position of the water collecting port 24 at the upper end of the floor drain central cavity 25, the water entering the floor drain can enter the floor drain at an accelerated speed due to the formation of the negative pressure inside the floor drain, so that a siphon water drainage phenomenon is formed, the water drainage capability of the floor drain. Along with the reduction of the drainage quantity of the floor drain, the water at the lower part of the central cavity 25 of the floor drain is gradually changed from full to unfilled, and at the moment, the drainage of the floor drain is also changed from siphon flow drainage to gravity flow drainage.

Therefore, the floor drain 100 of the present invention will form siphon action when the water flow reaches the standard of the national standard, and the water discharge is 1.5 times of the water discharge of the existing national standard for large flow type floor drain.

Further, as shown in fig. 8 and 9, the floor drain 100 of the present invention has a nano silver ion layer 7 on the surface of the floor drain body 2 and the water sealing member 4 contacting with water. Namely, the inner side wall of the outer layer wall 21 of the floor drain body 2, the inner and outer side walls of the inner layer wall 2122, the upper and lower walls of the cover plate 41 of the water seal member 4, the inner and outer walls of the annular water seal plate 42, the inner and outer walls of the clamping jaw 51, the outer surface of the suspension anti-return ball 5, the upper and lower surfaces of the seesaw 61 of the seesaw sealing device 6, and the parts contacting with water are all provided with the nano silver ion layer 7.

The nano silver ion layer 7 has the functions of sterilization and bacteriostasis, can effectively prevent microorganisms such as bacteria, viruses and the like from breeding in the floor drain body 2, enables the interior of the floor drain body 2 to be smoother, creates good conditions for smooth drainage of the floor drain 100, and simultaneously eliminates the stinking phenomenon of the traditional floor drain caused by breeding bacteria in the floor drain. Because the water in the U-shaped water sealing cavity of the existing floor drain cannot be drained completely, when water is not drained for a long time, the water in the U-shaped water sealing cavity smells due to the action of bacteria and the like, and the nano silver ion layers 7 are arranged on the contact surfaces of the inside 2 of the floor drain body and the water, so that the nano silver ion layers 7 are arranged on the inner surface of the U-shaped water sealing cavity 23 for sterilization and disinfection, and the problem of smelliness of the water stored in the U-shaped water sealing cavity 23 is solved.

Namely, the floor drain 100 of the invention does not breed bacteria inside the floor drain 100 due to the arrangement of the nano silver ion layer 7, so that the brightness inside the floor drain 100 is ensured to be as new, and the phenomenon of stinking of the floor drain 100 caused by the existence of bacteria can not happen due to the fact that the bacteria cannot breed inside the floor drain 100, so that the self-cleaning and self-cleaning capability of the floor drain 100 of the invention is enhanced.

Further, the outer layer wall 21 of the floor drain body 2 of the floor drain 100 is connected with the inner side of the base 1 through threads for adjusting the installation height of the floor drain body 2 and the base 1, the thread heights of the outer layer wall 21 of the floor drain body 2 and the inner side of the base 1 are both larger than 40mm, and the adjustment installation height is larger than 30 mm.

The inner wall of the base 1 is provided with internal threads, the outer wall of the outer wall 21 is provided with external threads, and the floor drain body 2 is in threaded connection with the base 1, so that the mounting height of the body 2 and the base 1 can be adjusted, and the floor drain is suitable for grounds in different field environments and easy to mount. Meanwhile, the height of the threads on the outer layer wall 21 of the floor drain body 2 and the inner side of the base 1 is larger than 40mm, so that the adjustable range of the installation height is larger than or equal to 30 mm.

As shown in figure 10, the floor drain 100 of the invention also comprises an alarm device 8, the seesaw sealing device 6 of the floor drain 100 of the invention comprises a seesaw 61, a rotating shaft 62 arranged on the seesaw 61 and a balancing weight 63 arranged at one end of the seesaw, a non-contact angle sensor 9 arranged on the rotating shaft 62 is electrically connected with the alarm device 8, when liquid enters the floor drain 100 and the seesaw 61 is opened downwards to cause the rotating shaft 62 to rotate, the angle sensor 9 transmits the change signals of current and voltage to the alarm device 8 to cause the alarm.

An alarm control circuit, an audible and visual alarm and the like are arranged in the alarm device 8. The angle sensor 9 sends a signal to the alarm device 8 to give an alarm after detecting that the rotating shaft 62 of the seesaw sealing device 6 rotates, so that the floor drain 100 can be applied to special occasions such as oil depots and other places where liquid leakage is strictly forbidden, and used for monitoring whether the ground of the oil depots leaks or not, and immediately giving an alarm when a little leakage occurs so as to carry out subsequent treatment.

Preferably, as shown in fig. 2, the inner surface of the U-shaped water seal chamber 23 of the present invention is a streamline surface, and the upper surface of the second curved wall 222 is also a streamline surface. The streamline surface makes the inner surface of the floor drain 100 body 2 smooth, particularly reduces the water flow resistance of the inner wall of the U-shaped water sealing cavity 23, makes the drainage faster, and effectively solves the defect of large water flow resistance of the traditional floor drain.

The contact position of the second curved wall 222 of the present invention and the hanging backflow-preventing ball 5 at the water collection port 24 is an arc-shaped surface 2221. Therefore, when the suspension anti-return ball 5 floats and is blocked at the position of the water collecting opening 24, the water collecting opening 24 can be effectively sealed.

The floor drain 100 has the advantages of simple structure, easy disassembly and installation (the height can be adjusted to 30mm), has multiple functions of deodorization, backflow prevention and insect prevention, adopts the nano silver ion technology to sterilize, and combines an alarm device to ensure that the floor drain 100 can become an alarm type floor drain and can be suitable for special occasions such as oil depots and the like. Namely, the floor drain 100 of the present invention has a simple structure and a versatile function, and is suitable for wide-scale popularization and application.

The above description is only for clearly illustrating the invention and is not therefore to be considered as limiting the scope of the invention, and all embodiments are not intended to be exhaustive, and all equivalent structural changes made by using the technical solutions of the present invention or other related technical fields directly/indirectly applied under the concept of the present invention are included in the scope of the present invention.

Claims

1. A multifunctional floor drain comprises a base arranged in a cushion layer or a reserved hole, a floor drain body sleeved in the base and exposed out of the top end of the base, and a grate covering the top end of the floor drain body, wherein a curved strip-shaped water inlet hole is formed in the grate, an installation opening is formed in the top of the base, a first water outlet is formed in the bottom of the base, and the floor drain body is arranged in the base from the installation opening of the base;

it is characterized in that the preparation method is characterized in that,

the floor drain body is of a double-layer wall structure and comprises an outer layer wall and an inner layer wall, an opening is formed in the top of the outer layer wall, the lower portion of the inner layer wall is connected with the outer layer wall to form a U-shaped water sealing cavity, and a water collecting port is formed in the top end of the inner layer wall;

2. The multifunctional floor drain according to claim 1, wherein the nano silver ion layer is arranged in the floor drain body and on the surface of the water sealing member contacting with water.

3. The multifunctional floor drain according to claim 1, wherein the water seal member comprises a cover plate and an annular water seal plate arranged on the lower end surface of the cover plate, the edge of the cover plate is lapped on the inner side of the outer layer wall and is provided with the annular water inlet hole;

4. The multifunctional floor drain according to claim 3, wherein a first buckle is arranged at the edge of the water seal member, a second buckle is arranged at the inner side of the outer wall of the floor drain body, the first buckle is clamped with the second buckle, and the annular water inlet hole is arranged at the edge of the water seal member at the inner side of the first buckle.

5. The multifunctional floor drain of claim 1, further comprising an alarm device, wherein the seesaw sealing device comprises a seesaw, a rotating shaft arranged on the seesaw and a balancing weight arranged at one end of the seesaw, the rotating shaft is provided with a non-contact angle sensor which is electrically connected with the alarm device, and when liquid enters the floor drain and opens the seesaw downwards to cause the rotating shaft to rotate, the angle sensor transmits the change signals of current and voltage to the alarm device to cause the alarm device to give an alarm.

6. The multifunctional floor drain of claim 1, wherein the outer wall of the floor drain body and the inner side of the base are provided with threads for adjusting the installation height of the floor drain body and the base, the thread height of the outer wall of the floor drain body and the thread height of the inner side of the base are both larger than 40mm, and the adjustment installation height is larger than 30 mm.

7. The multifunctional floor drain according to claim 1, wherein a first curved wall is arranged at the lower part of the inner wall of the floor drain body and connected with the outer wall of the floor drain body, the U-shaped water sealing cavity is formed among the outer wall, the first curved wall and the inner wall, a second curved wall which is curved towards the center is arranged at the top of the inner wall, and the water collecting port is formed by an opening in the middle of the second curved wall;

8. The multifunctional floor drain of claim 7, wherein the contact position of the second curved wall and the hanging anti-return ball at the water collection port is an arc-shaped surface.

9. The multifunctional floor drain according to claim 7, characterized in that the inner surface of said U-shaped water seal cavity is a streamline surface;

the upper surface of the second curved wall is also a streamlined surface.

10. The multifunctional floor drain of claim 1, wherein the edge of the upper end of the base is further provided with a waterproof wing ring.