CN212670775U

CN212670775U - Floor drain

Info

Publication number: CN212670775U
Application number: CN202020158551.1U
Authority: CN
Inventors: 刘玉建
Original assignee: Dalian Yujian Technology Co ltd
Current assignee: Dalian Yujian Technology Co ltd
Priority date: 2020-02-10
Filing date: 2020-02-10
Publication date: 2021-03-09
Anticipated expiration: 2030-02-10

Abstract

The invention belongs to a floor drain for indoor surface drainage. The central position of the water storage tank 4 is provided with the water outlet 1, the water returning bowl 3 is in a short box shape and is made of silica gel, the bottom end of the skirt part of the water returning bowl 3 is directly contacted with the bottom plane of the water storage tank 4 to form a closed surface, the top plane of the water returning bowl 3 can be attached to the grate 5, the skirt part of the water returning bowl 3 can be folded and bent inwards under the drainage pressure to form a lamellar structure, and the drainage hole 9 of the grate 9 is arranged on the edge of the water storage tank 4. The water storage tank 4 is provided with a support 10 for supporting the grate 5. An air buffer device is arranged on the top surface of the flat-top water returning bowl 3. The water seal floor drain with the structure has no water return bowl shielding during drainage, is sealed by the water return bowl 3, is difficult to dry stored water, and is not ineffective when no water exists.

Description

Floor drain

Technical Field

The invention belongs to a floor drain for indoor surface drainage.

Background

The water seal floor drain is a structure with a water storage tank and a bell jar (top surface circular arc shape) type water return bowl partition passage to seal the passage; and water is drained by passing over a water return bowl obstacle by 180 degrees in an up-down return process. The disadvantages of this structure are: the volume must be high and large to ensure the width of the drainage channel and 50 mm of water storage capacity of national standard. The floor drain with the height which is limited in the ground height space of modern home decoration cannot be installed at all; the water is drained from a central hole of the grate and then returns from the circular arc top surface of the bell-jar water returning bowl to the inner surface of the bell-jar water returning bowl, so that the bell-jar water returning bowl has the disadvantages of large water drainage resistance, poor self-cleaning capability and easy blockage; the water stored in the water storage tank is easily sucked away by the negative pressure generated by the sewer, so that the water sealing is invalid; the floor drain cover is easy to be broken by positive pressure generated by a sewer, so that the sealing failure of the water returning bowl is caused; the water stored in the water storage tank is directly contacted with indoor air and is easy to dry, so that the advantage of tight water sealing originally becomes a fatal defect.

Disclosure of Invention

In order to solve a series of problems existing in the prior art, the invention aims to provide a drainage channel for a large tunnel to be directly communicated with a sewer; the water seal floor drain is not easy to dry with water and does not lose efficacy without water.

The technical scheme of the invention is that,

4 central point of water storage tank puts and establishes mouth of a river 1 down, 4 bottom planes of water storage tank are stretched out to 1 upper end of the mouth of a river down, 1 lower extreme of the mouth of a river stretches out water storage tank 4 and is the coupling, it is box-like to return water bowl 3, make by silica gel, 3 skirt portion bottom direct contact of the bowl of returning water forms the closing surface to the bottom plane of

water storage tank

4, 3 top planes of the bowl of returning water can laminate mutually with

grate

5, 3 skirt portions of the bowl of returning water can inwards fold crooked lamellar structure under drainage pressure, wash port 9 of grate 5 is established on the edge of water storage tank 4.

In one embodiment, the bottom plane of the water storage tank 4 outside the skirt part of the water returning bowl 3 rises to a position which is level with the upper end surface of the sewer port 1, the water storage area of the water storage tank 4 is reduced to be a small water storage tank 2, the bottom end of the skirt part of the water returning bowl 3 is equivalent to be directly contacted with the bottom plane of the small water storage tank 2 to form a closed surface, and the outer edge of the bottom end of the skirt part of the water returning bowl 3 is contacted with the inner edge of the small water storage tank 2 to form another closed surface.

In both of the above embodiments, the support 10 for supporting the grate 5 is provided in the water storage tank 4.

In the former two embodiments, the outer ring of the top surface of the flat-top water returning bowl 3 is provided with the air bag 6, the center is provided with the air bag 7, and the section of the air bag is W-shaped or the top of the water returning bowl 3 is film-shaped.

The invention has the technical effects that:

1. the water return bowl made of silica gel can enable the skirt part to be folded inwards under the pressure of drainage, and the fatal defect of upward and downward 180-degree return bending of drainage through the water return bowl is overcome. The original drainage channel which needs to be divided into two channels by the water returning bowl is changed into a spacious drainage channel which is close to direct drainage, which is equivalent to the obstacle of removing the water returning bowl, and the ideal water seal floor drain structure which avoids blockage, enhances self-cleaning capability and increases drainage speed is provided;

2. the bottom edge of the silica gel water return bowl is directly contacted with the inner bottom surface of the water storage tank, so that the height of a drainage channel reserved at the lower end of the water return bowl of the traditional water seal floor drain can be saved, the overall height of the floor drain is reduced by the structure, the problem that the height of the water seal floor drain is not suitable for modern family decoration is solved, and the key technical measure for performing demolding and bone replacement transformation on the traditional water seal floor drain is provided; secondly, under the condition that the water storage tank is anhydrous, the water return bowl buckled on the bottom surface of the water storage tank can still isolate a sewer from an indoor channel, and the sealing effect of the water return bowl is superior to that of mechanical valves of all modern structures, so that the fatal problem that the water seal floor drain is ineffective when sealed without water is solved;

3. the four edges of the grate are provided with drain holes, and the length of the side length in the total drain sectional area is larger than the sectional area of the drain hole arranged in the middle of the grate. The time for the drainage to enter the water storage tank is earlier than the time for the drainage to enter the central hole of the grate, and the drainage is timely; the center of the grate is not provided with a drain hole structure, the semicircular top surface of the traditional bell-type water return bowl can be cut into a plane top surface consistent with the bottom plane of the grate, and the biggest significance is that: firstly, the height of the water return bowl is greatly reduced, and the height of the water seal floor drain is further reduced; secondly, the traditional water seal floor drain is changed, a winding drainage route which needs to return to the inner surface of the bell-jar water returning bowl through the top surface of the bell-jar water returning bowl is changed, and the direct drainage effect is achieved;

4. the structure of the small water storage tank is arranged, so that the stored water is completely covered in the space in the water return bowl and is not communicated with the outside, the dryness of the stored water can be avoided, the problem that the stored water height of the water seal floor drain is required to be selected anecdotally within 50 mm (national standard) in order to prevent the dryness is solved, and the overall height of the floor drain can be reduced by reducing the stored water height;

5. a gas energy buffer device is arranged on the top surface of the flat-top silica gel water returning bowl, so that each part of the silica gel water returning bowl has functions. Both the integrated air energy buffer device with the W-shaped cross section and the film type air energy buffer device almost have no cost, and simultaneously solve the problems that the negative pressure water absorption and the positive pressure cover jumping of the water seal floor drain cannot be solved for a long time. The short box type flat-top water returning bowl has large top area, is directly covered on the lower water gap, and has the effect of sensitive and enough space for absorbing energy. Secondly, the low box type silica gel water return bowl has elasticity as a whole, and the silica gel box buckled at the water outlet is a device with expansion and contraction functions;

6. the structure of the upright post in the water storage tank reduces the span of the grate, and enlarges the water storage tank to the edge to increase the capacity; and thirdly, an optimal position is provided for independently fixing and controlling the water returning bowl.

Drawings

The present invention is described in further detail below with reference to the attached drawing figures.

FIG. 1 is a schematic of the present invention;

FIG. 2 is a schematic view of a grate column;

figure 3 is a schematic view of an octagonal floor drain.

In the figure: 1. the water return device comprises a water outlet, 2, a small water tank, 3, a water return bowl, 4, a water storage tank, 5, a grate, 6, a positive pressure air bag, 7, a negative pressure air bag, 8, a positioning sleeve, 9, a water discharge hole, 10, a support column, 11, a connecting arm, 12, a water return bowl frame, 13, a fixing hole, 14, a folded plate, 15, a check valve, 16, a large hole, 17 and a supporting angle.

Detailed Description

Referring to the attached figure 1, a water outlet 1 is arranged at the central position in a water storage tank 4, and the lower end of the water outlet 1 is connected with a building sewer. The water return bowl 3 is box-shaped and short box-shaped, is completely different from the traditional bell jar water return bowl with a tall and big dome, and has no water return function. The short box-type water returning bowl 3 is characterized in that the edge angle of the top plane of the water returning bowl 3 can be made into a circular arc shape or a square platform shape properly to enlarge the width of the drain holes 9 on the four edges of the grate 5; the water return bowl 3 is made of silica gel material, and the skirt part (the height part of the box shape) of the water return bowl 3 extends downwards in a sheet shape and can be bent and folded inwards under the pressure of water. The top surface of the water return bowl 3 is planar and can be attached to the bottom plane of the grate 5. The small water tank 2 is a part of the water storage tank 4, and when the small water tank 2 is formed, the bottom plane of the water storage tank 4 is the bottom plane of the small water tank 2. The bottom end of the skirt part of the water returning bowl 3 is contacted with the bottom plane of the small water storage tank 2 to form a closed surface; the shape of the inner edge of the small water tank 2 is the same as that of the outer edge of the skirt part of the water returning bowl 3, and the inner edge and the outer edge have a matching relation, namely, the outer diameter (outer side surface) of the bottom end of the water returning bowl 3 is contacted with the inner diameter (inner side surface) of the small water tank 2 to form another closed surface. The small water tank 2 is formed because the bottom plane of the water storage tank 4 outside the skirt part of the water return bowl 3 is raised, namely, the water storage tank 4 outside the skirt part of the water return bowl 3 does not store water any more. The height of the small water storage tank 2 is the same as that of the top end of the lower nozzle 1. This height determines the amount of water stored in the small water storage tank 2.

When the water is drained, the water pressure generated by the water storage tank 4 enables the water return bowl 3 sheet to be folded inwards, and a state without the water return bowl is formed. The drainage route at this time is as follows: water enters from the long drain holes 9 around the grate 5, is stored in the water storage tank 4 and directly enters the inlet at the upper end of the lower nozzle 1, the whole drainage route has no curve, and the direct drainage effect is achieved. The channel does not need a filtering device, the drainage is that water enters from the four edges of the grate 5 through the long drainage holes 9 with the width of 10 mm and directly enters the drainage port 1 with the standard diameter without any shielding for drainage, and the structure realizes the ideal states of opening a large gate hole, removing impurities and non-blocking drainage channel.

The edge (outer diameter) of the water returning bowl 3 is attached to the inner diameter edge of the small water storage tank 2 by self elasticity; the gravity makes the lower end of the water returning bowl 3 attached to the bottom plane of the small water storage tank 2, which is determined by the unique structure of elastic return and gravity return. The significance of the water seal floor drain is that the sealing surface at the bottom end of the water return bowl 3 can be sealed more. It is assumed that the sealing effect with water is still obtained when the water reservoir of the small reservoir 2 is only one millimeter. Therefore, this structure can greatly reduce the amount of water stored in the small water storage tank 2. When the requirement on the water storage amount is reduced, the height of the upper end of the sewer port 1 is reduced, namely the height of the 'hurdle' for drainage is reduced, so that the drainage resistance is greatly reduced, and the water seal floor drain is a water seal floor drain structure which is sealed and has no curve and is obtained by dreams of innumerable designers of the floor drain for one hundred years.

A gas energy buffer device is arranged on the top of the water returning bowl 3 by utilizing the elastic property of silica gel. An air bag 7 is provided at the center, which is convex upward in a spherical shape. The air bag 7 is used for absorbing negative pressure generated by the sewer, when the negative pressure is generated, the spherical air bag 7 which is convex upwards can contract downwards to absorb energy, so that water stored in the water storage tank 2 can be prevented from being sucked into the sewer; an annular downward convex air bag 6 is arranged on the outer ring of the spherical air bag 7. When the sewer generates positive pressure, the air bag 6 which is protruded downwards is compressed, so that the energy of the positive pressure is absorbed, and the grate 5 is prevented from being bounced. The air bag 7 and the air bag 6 are connected into a concave-convex device with a W-shaped section in a smooth transition mode, and the thicknesses of the silica gel of the air bag 7 and the silica gel of the air bag 6 are relatively thin so as to ensure the sensitivity when the air bag acts. The W-shaped section comprises a reverse W shape, namely the central air bag 7 is convex downwards; the outer ring air bag 6 protrudes upwards, the energy absorption function is opposite, the structure can enable the edge of the flat-topped water returning bowl 3 to form fillet transition, and the edge of the water returning bowl 3 with the fillet on the top surface is beneficial to the structure that the grate 5 drains water on the edge.

Referring to the attached figure 2, four supporting columns 10 for supporting the grate 5 extend out of the bottom surface of the water storage tank 4, and positioning sleeves 8 matched with the diameters of the supporting columns 10 are arranged at the four corners of the silica gel water return bowl 3, or the positioning sleeves 8 are used for positioning the integral water return bowl 3 in the water storage tank 4 (or the small water storage tank 2). The positioning sleeve 8 is connected to the upper end of the water return bowl 3 through a connecting arm 11. This is an embodiment in which the support column 10 is arranged outside the return bowl 3. The top surface position of the water return bowl 3 has two embodiments: one is tightly attached to the bottom plane of the grate 5, and the connecting arm 11 is short; the other is to leave a certain distance between the top surface of the water returning bowl 3 and the grate 5. The purpose of this distance is to create an upward component of force when the skirt of the return bowl 3 is subjected to the pressure of the drain during draining, causing the return bowl 3 to be lifted up against the grate. The height of the drainage channel is equal to the upward moving distance of the water return bowl 3 and the opening height of the thin slice at the skirt part of the water return bowl 3. The addition of these two distances allows the height of the drainage channel to be increased, further reducing the drainage resistance to an unobstructed drainage effect. When the drainage stops, the water returning bowl 3 returns to the original position under the action of the gravity of the water returning bowl and stands on the bottom plane of the small water tank 2 again. The height of the small water tank 2 with the structure is larger than the upward moving distance of the water return bowl 3; the up-and-down movement of the water returning bowl 3 is realized by the elastic sheet type connecting arm 11, in order to ensure that the connecting arm 11 has enough flexibility, the water returning bowl 3 can be made into an octagonal shape (the angle of a square is removed) to prolong the length of the connecting arm 11, so that the water returning bowl 3 is in a state of being pulled by the connecting arm 11, and the water returning bowl 3 can flexibly move up or fall by gravity at any time. There are three embodiments of the top of the water returning bowl 3 with the structure: one is planar, but this plane is thin film-like; the second is a film arc surface with a little point protruding upwards; the skirt part at the upper end of the third water return bowl 3 is provided with a compression wrinkle. When the sewer generates positive pressure, the box-type water returning bowl 3 is moved upwards by the pressure action like a piston; the corrugated structure is compressed and functions to absorb energy (the film also functions in this process); when the sewer generates negative pressure, the thin film deforms and protrudes downwards under the action of pressure because the top area of the box-type water returning bowl 3 is larger; the corrugated structure is compressed and the negative energy is absorbed.

The edges of the air bag 6 and the air bag 7 (including the connecting edges thereof) having the "W" shaped cross section may be circular, rectangular, octagonal, or the like.

Referring to fig. 3, the water seal floor drain is a water seal floor drain which completely uses the water storage tank 4 to directly store water.

A water returning bowl frame 12 made of plastic is arranged in the water returning bowl 3, a support column 10 is arranged on the bottom surface of the water returning bowl frame 12, and reinforcing ribs are arranged on the side surface of the support column 10. Four support columns 10 extend downwards to contact and support the top of the lower nozzle 1, and a reinforcing step is correspondingly arranged at the supporting point of the lower nozzle 1. This configuration may also be provided with two or three struts. The top of the water returning bowl frame 12 is provided with a big hole 16, and the big hole 16 completely exposes the air bag 7 of the air bag 6. The cross section of the water storage tank 4 is in an octagonal shape, the top of the water storage tank is in a square shape, four supporting corners 17 protrude, and the four supporting corners 17 of the square shape support the four corners of the grate 5. The edge supporting structure is also an embodiment without the supporting column 10, when the supporting column 10 is not arranged, the water returning bowl frame 12 can be eliminated, and the silica gel water returning bowl 3 is directly fixed on the folded plate 14 by screws. The skirt part of the water returning bowl 3 and the water storage tank 4 are in an octagonal shape, the bottom edge of the silica gel sheet at the skirt part of the water returning bowl 3 is in direct contact (standing) with the inner bottom surface of the water storage tank 4, the bottom end of the skirt part of the water returning bowl 3 is a soft closed surface, and the bottom plane of the water storage tank 4 is equivalent to a valve seat. The middle part of the skirt part of the water return bowl 3 is provided with a sheet check valve 15 which extends forwards in a horizontal plane shape and surrounds the skirt part of the water return bowl 3 for a circle like a pot cover, the front end of the octagonal check valve 15 is matched with the octagonal inner wall of the water storage tank 4, namely, the inner wall of the water storage tank 4 is equivalent to a valve seat; the height of the position of the check valve 15 is above the horizontal plane of the water stored in the water storage tank 4, and the main function is to isolate the water stored in the water storage tank 4 from the indoor passage and prevent the water in the water storage tank from being evaporated; when the water storage tank 4 is empty, the check valve 15 is equivalent to a mechanical valve for closing the drainage channel; when water passes through, the check valve 15 in a sheet shape is bent downward by the gravity of the water; after the water flow passes through, the elastic recovery of silica gel is utilized, and the front end of the check valve 15 is attached to the wall of the water storage tank 4 again for sealing. The grate 5 is made of stainless steel plates by punching, concave-convex reinforcing ribs are arranged on the grate, and the water outlets 9 are arranged on four edges of the grate. At the same time of punching the water outlet 9, the punched material is folded downwards by 90 degrees to form a folded plate 14, and the folded plate 14 is a reinforcing rib and is also a connecting device of the grate 5 and the water return bowl 3. The folded plate 14 is provided with a fixing hole 13, and the water return bowl 3 is tightly attached and fixed on the bottom surface of the grate 5 through self-tapping screws.

Claims

1. A floor drain, the central position of the water storage tank (4) is provided with a water outlet (1), the upper end of the water outlet (1) extends out of the bottom plane of the water storage tank (4), the lower end of the water outlet (1) extends out of the water storage tank (4) to be a pipe joint, a water return bowl (3) is box-shaped and is made of silica gel, the middle part of the skirt part of the water return bowl (3) is provided with a lamellar check valve (15) which extends forwards in a horizontal plane shape, the front end of the skirt part of the water return bowl is attached to the wall of the water storage tank (4) to be sealed, when water passes through the water return bowl, the lamellar check valve (15) bends downwards under the action of gravity of the water, the bottom end of the skirt part of the water return bowl (3) directly contacts the bottom plane of the water storage tank (4) to form a sealing surface, the top plane of the water return bowl (3) can be attached to a grate (5), the skirt part of the water return bowl (3) is of a lamellar, it is characterized in that a supporting column (10) for supporting the grate (5) is arranged in the water storage tank (4):

A) a water returning bowl frame (12) made of plastic is arranged in the water returning bowl (3), the support columns (10) are arranged on the bottom surface of the water returning bowl frame (12), the four support columns (10) extend downwards to be in contact with the top of the water outlet (1) for supporting, and the supporting points of the water outlet (1) are correspondingly provided with reinforcing steps; or B) four supporting columns (10) for supporting the grate (5) extend out of the bottom surface of the water storage tank (4), and positioning sleeves (8) matched with the diameters of the supporting columns (10) are arranged at the four corners of the silica gel water return bowl (3).