CN217053683U - Self-sealing overflow-proof floor drain - Google Patents

Abstract

The utility model discloses a proclaim oneself and prevent returning excessive floor drain, include: the floor drain comprises a floor drain body which is of a hollow cylindrical structure, a detachable cover ring is installed at the top of the floor drain body, a water seal is fixed in the floor drain body and comprises an upper water seal and a lower water seal, the upper water seal is of a hollow cylindrical structure, the top of the upper water seal is circumferentially and vertically supported with the inner wall of the floor drain body, the lower water seal is of a cup-shaped structure with an opening at the top, the bottom of the lower water seal is provided with a telescopic sleeve which is fixed on the surface of a floor drain lower plate at the middle lower part of the floor drain body, the bottom surface of the lower water seal is contacted with or separated from the bottom surface of the upper water seal in the movement process of the telescopic sleeve, a plurality of floor drain lower plate water through holes are formed in the floor drain lower plate, a water passage is formed below the floor drain lower plate and is communicated with a sewer, and the problem of complex structure in the prior art is solved, the difficulty of installation and disassembly and the need of additional water traps.

Description

Self-sealing overflow-proof floor drain

Technical Field

The utility model belongs to building plumbing field especially relates to a proclaim oneself and prevent returning excessive floor drain.

Background

The floor drain is a common drainage accessory in a building drainage system, is mainly installed in places needing floor drainage, such as toilets, bathrooms, balconies and the like, and is used for draining accumulated water on the floor, draining water by a washing machine and intercepting sundries. In a building sewage pipeline system, a water seal or a trap must be arranged below a water outlet. According to 4.3.11 regulations of building water supply and drainage design Standard GB50015-2019, the water seal depth of a water seal device is not less than 50mm, a movable mechanical valve is forbidden to replace a water seal, and a bell-shaped structure floor drain is forbidden. The new floor drain structure of mechanical flap type emerging in recent years has not met the current specifications because it can not guarantee "reliable sealing"; the traditional bell-shaped structure floor drain loses water seal because the lower buckling bowl is easily moved and lost, and the practical use condition reflects that the bell-shaped floor drain drains slowly, so that indoor accumulated water is easy to be deep in a short time. Both of the above two situations are not favorable for drainage sanitation and safety, and are abandoned by the current regulations.

The water seal of the floor drain has two setting conditions, one is that the floor drain is provided with the water seal, and the other is that a trap is arranged on a connecting branch pipe without the water seal. Both the traditional floor drain with a water seal and the floor drain without a water seal provided with a trap are susceptible to the influence of instantaneous large-flow drainage of an upper floor, even the phenomenon of back overflow occurs, or the back overflow occurs due to the blockage of a sewer to pollute the indoor environment. The back overflow condition cannot be avoided because of the presence of a water seal or trap. In a house, the trap is arranged in a water-free sealed manner, the installation space of the trap needs to be reserved, drainage on the same floor is difficult to realize, and a different-floor drainage mode of installing the trap under a floor slab needs to be adopted, so that the suspended ceiling space of a toilet of a lower-floor household is occupied.

Aiming at the overflow-back condition, some novel floor drains or floor drain cores for preventing overflow-back appear. As the magnetic type overflow-preventing floor drain disclosed by the Chinese patent application number (202022260502.1) and the overflow-preventing floor drain core disclosed by the application number (20202026159.1), the floor drain contains more tiny parts, needs a relatively fine manufacturing process, has higher cost and is not suitable for being used in common houses; and the water seal is not arranged on the drainage branch pipe, the overflow-preventing function is only realized, and the trap is still required to be additionally arranged on the drainage branch pipe of the floor drain.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a proclaim oneself and prevent returning excessive floor drain solves among the above-mentioned prior art technical problem that the structure is complicated, the installation is dismantled the difficulty and need establish the trap in addition.

The utility model provides a technical scheme that its technical problem adopted is:

a self-sealing overflow-preventing floor drain comprises: the floor drain comprises a floor drain body which is of a hollow tubular structure, a detachable cover ring is installed at the top of the floor drain body, a water seal is fixed inside the floor drain body and comprises an upper water seal and a lower water seal, the upper water seal is of a hollow tubular structure, the top circumference of the upper water seal and the inner wall of the floor drain body realize vertical support, the lower water seal is of a cup-shaped structure with an open top, a telescopic sleeve is arranged at the bottom of the lower water seal and fixed on the surface of a lower floor drain plate of the lower part of the floor drain body, the bottom surface of the lower water seal is contacted with or separated from the bottom surface of the upper water seal in the movement process of the telescopic sleeve, a plurality of lower floor drain water passing holes are formed in the lower floor drain plate, and a water passing channel is formed below the lower floor drain plate and communicated with the sewer.

The utility model discloses a from sealing and prevent returning excessive floor drain, upper portion water seal top has the turn-ups, it is protruding in the floor drain that floor drain body inner wall has, upper portion water seal top turn-ups overlap joint is protruding in the floor drain, its bottom holds upper portion water seal top turn-ups pressure fixedly after the apron lid closes.

The utility model discloses a proclaim oneself and prevent returning excessive floor drain, the telescope tube includes a section of thick bamboo and a lower section of thick bamboo, a lower section of thick bamboo can slide from top to bottom in last section of thick bamboo, the telescope tube middle part has the spring, the spring top is connected with lower part water seal bottom surface, spring bottom and floor drain hypoplastron surface connection.

The utility model discloses a proclaim oneself and prevent returning excessive floor drain, it has the binding off structure and the uncovered structure of mutually supporting with lower bobbin top portion to go up bobbin base portion, the cooperation of binding off structure and uncovered structure makes and goes up bobbin and lower bobbin and can not separate completely at the motion process.

The utility model discloses a proclaim oneself and prevent returning excessive floor drain, the uncovered structure outer wall department cover of lower section of thick bamboo is equipped with the sleeve sealing circle.

The utility model discloses a proclaim oneself and prevent returning excessive floor drain, lower section of thick bamboo is fixed connection with the floor drain hypoplastron, it is swing joint with lower part water seal to go up a section of thick bamboo, lower part water seal bottom has solid fixed ring, go up the bobbin-top and insert in the solid fixed ring.

The utility model discloses a from sealing anti-overflow floor drain, lower part water seal bottom surface and upper portion water seal bottom position department of correspondence have a water seal packing ring.

The utility model discloses a proclaim oneself and prevent returning excessive floor drain, the apron top surface has the floor drain double-edged fine-toothed comb, apron inner wall has apron step hole, install the filter screen on the apron step hole.

The utility model discloses a proclaim oneself and prevent returning excessive floor drain, the apron lateral wall is threaded connection with floor drain body inside wall.

The utility model discloses a proclaim oneself and prevent returning excessive floor drain, floor drain body lateral surface has waterproof wing ring.

The utility model discloses the beneficial effect who produces is:

1. the lower water seal part is movable, and the spring is compressed along with the increase of the depth of water stored in the lower water seal part, and the floor drain drains water, so that a certain water seal depth can be still maintained when the water is not drained.

2. The water seal is arranged, and a trap additionally arranged on a drain pipe of the floor drain is omitted.

3. Besides the traditional floor drain grate, a filter screen with smaller aperture is arranged below the grate, so that hairs and fine impurities can be effectively prevented from entering the pipeline to cause blockage.

4. The spring is protected by the lower cylinder and the upper cylinder, and is not in direct contact with sewage during normal drainage, so that the service life of the spring is prolonged.

5. The floor drain is simple in structure, small in parts, low in requirements for manufacturing processes, convenient and fast to construct, capable of being disassembled from top to bottom in sequence and convenient to take out, clean and replace parts.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the water seal state according to the embodiment of the present invention;

FIG. 3 is a schematic view of the drainage state of the embodiment of the present invention;

FIG. 4 is a schematic view of an anti-overflow state according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating the installation of the sleeve gasket according to the embodiment of the present invention.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are some, but not all, embodiments of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-5, a self-sealing overflow-preventing floor drain comprises: the floor drain comprises a floor drain body 1, wherein the floor drain body 1 is of a hollow cylindrical structure, a detachable cover ring 2 is installed at the top of the floor drain body 1, a water seal part 3 is fixed inside the floor drain body 1, the water seal part 3 comprises an upper water seal part 310 and a lower water seal part 320, the upper water seal part 310 is of a hollow cylindrical structure, the top circumference of the upper water seal part 310 and the inner wall of the floor drain body 1 realize vertical support, the lower water seal part 320 is of a cup-shaped structure with an opening at the top, the bottom of the lower water seal part 320 is provided with a telescopic sleeve 4, the telescopic sleeve 4 is fixed on the surface of a floor drain lower plate 140 at the middle lower part of the floor drain body 1, the bottom surface of the lower water seal part 320 is in contact with or separated from the bottom surface of the upper water seal part 310 in the movement process of the telescopic sleeve 4, the floor drain lower plate 140 is provided with a plurality of floor drain lower plate water passing holes 150, and a water passing channel 6 is formed below the floor drain lower plate 140, the water passing channel 6 is communicated with a sewer.

The utility model discloses a preferred embodiment, upper portion water seal 310 top has the turn-ups, 1 inner wall of floor drain has the interior arch 120 of floor drain, upper portion water seal 310 top turn-ups overlap joint is on the interior arch 120 of floor drain, its bottom is held upper portion water seal 310 top turn-ups pressure fixedly after the lid of apron 2 lid closes.

The utility model discloses a preferred embodiment, telescopic sleeve 4 includes an upper cylinder 410 and a lower cylinder 420, a lower cylinder 420 can slide from top to bottom in an upper cylinder 410, telescopic sleeve 4 middle part has spring 5, the spring 5 top is connected with lower part water seal 320 bottom surface, spring 5 bottom and floor drain hypoplastron 140 surface connection.

In the preferred embodiment of the present invention, the bottom of the upper tube 410 and the top of the lower tube 420 have a closing structure and an opening structure, which are mutually matched, and the cooperation of the closing structure and the opening structure makes the upper tube 410 and the lower tube 420 not be completely separated during the movement.

In the preferred embodiment of the present invention, the sleeve sealing ring 430 is sleeved on the outer wall of the open structure of the lower barrel 420.

The utility model discloses a preferred embodiment, lower section of thick bamboo 420 is fixed connection with floor drain hypoplastron 140, it is swing joint with lower part water seal 320 to go up section of thick bamboo 410, lower part water seal 320 bottom has solid fixed ring 311, go up section of thick bamboo 410 top and insert in the solid fixed ring 311.

In the preferred embodiment of the present invention, the bottom surface of the lower water seal 320 has a water seal gasket 312 corresponding to the bottom of the upper water seal 310.

The utility model discloses a preferred embodiment, 2 top surfaces of lid circle have floor drain double-edged fine- toothed comb 230, 2 inner walls of lid circle have lid circle step hole 210, install filter screen 210 on the lid circle step hole 210.

The preferred embodiment of the utility model provides an, 2 lateral walls of lid circle and 1 inside wall of floor drain body are threaded connection.

In the preferred embodiment of the present invention, the outer side surface of the floor drain body 1 is provided with a waterproof wing ring 130.

The working principle is briefly described as follows:

in the continuous drainage time, along with the continuous inflow of sewage, the water depth in the lower water seal member 320 gradually rises, when the water storage depth exceeds the height of the water storage depth, such as 50mm, the spring 5 starts to be compressed, the lower water seal member 320 moves downwards together with the upper barrel 410, a water passing channel between the upper water seal member and the lower water seal member is opened, the floor drain enters a drainage stage, and the sewage flows into a bottom water passing channel 6 after passing through the water passing seal member 3 and is drained through a pipeline (as shown in fig. 3); the spring 5 is always in a compressed state in the whole drainage process, when the whole water seal piece 3 is filled with water, the lower end of the upper barrel 410 props against the floor drain lower plate 140, and the spring 5 is not directly contacted with sewage due to the protection effect of the upper barrel 410 and the lower barrel 420 and is not easy to damage. Along with the end of the drainage process, the spring 5 extends again to make the lower water sealing piece 320 support against the water sealing gasket 312, and at the moment, the water stored in the lower water sealing piece 320 is just 50mm, so that the specification requirement is met. In the process of draining water, the spring 5 is in a compressed and extended state continuously, so that the spring is made of non-deformable high-quality stainless steel materials, and the service life of the spring is prolonged. The water seal gasket 312 can prevent the upper water seal 310 and the lower water seal 320 from directly contacting, thereby alleviating the impact force and preventing the water seal 3 from being worn.

If the floor drain does not drain water for a long time, the water stored in the lower water seal member 320 gradually evaporates, the water seal depth decreases, and a water seal with a certain depth can be formed at the bottom of the lower water seal member 320 as long as water with a certain depth is stored, so that odor is blocked. After the water seal in the floor drain is completely dried, the floor drain is in an initial state shown in fig. 1, at this time, the upper water seal 310 and the lower water seal 320 form a seal under the action of the water seal gasket 312, and odor, reptiles and the like in the pipeline cannot enter a room. The water sealing gasket 312 is a U-shaped sealing member, the top of the U-shaped sealing member is a groove, the lower edge of the upper water sealing member 310 is wrapped, and when the lower water sealing member 320 abuts against the water sealing gasket 312, the structure can ensure that the water sealing gasket 312 does not fall off to form stable sealing. The structure is a protection measure after the water seal is dried, and the defect that the traditional water seal floor drain cannot block odor after the water seal is dried is overcome. When the lower water sealing member 320 abuts against the water sealing gasket 312 to form a seal, the closing structure of the upper cylinder 410 just buckles the opening structure of the lower cylinder 420, and a ring of groove is formed at the lower part of the outward expansion section of the lower cylinder 420, a sleeve sealing ring 430 is filled in the groove, and the upper cylinder 410 and the lower cylinder 420 can form a seal when buckled with each other. Because the use place that this floor drain is aimed at is in the house bathroom, consequently seldom has the condition of long-time undrained to appear, so all can have in the water seal spare to deposit water and form stable water seal under the general condition, can not cause the influence to the indoor environment.

As shown in fig. 4, when the sewage in the branch pipe of the floor drain overflows due to the blocking of the drainage pipeline or the instantaneous large flow drainage of the upper floor, the lower water sealing member 320 is more tightly pressed against the lower edge of the upper water sealing member 310 under the action of the sewage, even if part of the sewage enters the water sealing member 320 through the gap between the water sealing members or part of the water is still stored in the water sealing member 320, the water pressure inside the water sealing member 320 is smaller than the sum of the sewage pressure of the overflow and the elastic force of the spring 5, and the overflow sewage cannot enter the room through the floor drain. And at this moment, the upper cylinder 410 and the lower cylinder 420 are buckled with each other, and the seal formed by the elastic force generated by the extension of the spring 5 and the action of the sleeve sealing ring 430 can well prevent the overflowing sewage from entering the installation space of the spring 5, thereby effectively protecting the spring 5. After the overflow is finished, the water flow falls, and the sewage retained in the space of the water seal part continues to form a water seal to continue to block the odor.

The local leakage and overflow prevention structure has the advantages of simple structure, low requirement on manufacturing process, convenience in installation and low manufacturing cost; the floor drain can be sequentially disassembled from the floor drain grate 230, the filter screen 220, the cover ring 2, the water sealing part 3 and the spring 5 from top to bottom, and can be sequentially disassembled, cleaned or replaced after the floor drain is blocked by sundries or the spring 5 is damaged, so that the floor drain is quick, convenient and easy to operate, and does not need to be dredged by professionals. The floor drain can be made of ABS engineering plastics (except springs), cast iron, stainless steel, copper and the like.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims (10)

1. The utility model provides a proclaim oneself and prevent returning floor drain of excessive which characterized in that includes: the floor drain comprises a floor drain body (1), wherein the floor drain body (1) is of a hollow tubular structure, a detachable cover ring (2) is installed at the top of the floor drain body (1), a water seal piece (3) is fixed inside the floor drain body (1), the water seal piece (3) comprises an upper water seal piece (310) and a lower water seal piece (320), the upper water seal piece (310) is of a hollow tubular structure, the top circumference of the upper water seal piece (310) and the inner wall of the floor drain body (1) realize vertical support, the lower water seal piece (320) is of a cup-shaped structure with an opening at the top, an expansion sleeve (4) is arranged at the bottom of the lower water seal piece (320), the expansion sleeve (4) is fixed on the surface of a floor drain lower plate (140) at the middle lower part of the floor drain body (1), and the bottom surface of the lower water seal piece (320) is in contact with or separated from the bottom surface of the upper water seal piece (310) in the movement process of the expansion sleeve (4), the floor drain lower plate (140) is provided with a plurality of floor drain lower plate water passing holes (150), a water passing channel (6) is formed below the floor drain lower plate (140), and the water passing channel (6) is communicated with a sewer.

2. The self-sealing overflow-preventing floor drain according to claim 1, wherein the top of the upper water seal member (310) has a turned-over edge, the inner wall of the floor drain body (1) has an inner floor drain bulge (120), the turned-over edge at the top of the upper water seal member (310) is lapped on the inner floor drain bulge (120), and the turned-over edge at the top of the upper water seal member (310) is pressed and fixed by the bottom of the cover ring (2) after covering.

3. The self-sealing overflow-preventing floor drain according to claim 1, wherein the telescopic sleeve (4) comprises an upper barrel (410) and a lower barrel (420), the lower barrel (420) can slide up and down in the upper barrel (410), a spring (5) is arranged in the middle of the telescopic sleeve (4), the top of the spring (5) is connected with the bottom surface of the lower water seal (320), and the bottom of the spring (5) is connected with the surface of the lower floor drain plate (140).

4. The self-sealing overflow-proof floor drain of claim 3, wherein the bottom of the upper tube (410) and the top of the lower tube (420) have a closing structure and an opening structure which are engaged with each other, and the engagement of the closing structure and the opening structure prevents the upper tube (410) and the lower tube (420) from being completely separated during the movement.

5. The self-sealing overflow-preventing floor drain as claimed in claim 4, wherein a sleeve sealing ring (430) is sleeved on the outer wall of the open structure of the lower cylinder (420).

6. The self-sealing overflow-preventing floor drain as claimed in claim 4, wherein the lower cylinder (420) is fixedly connected with the floor drain lower plate (140), the upper cylinder (410) is movably connected with the lower water seal (320), the bottom of the lower water seal (320) is provided with a fixing ring (311), and the top of the upper cylinder (410) is inserted into the fixing ring (311).

7. The self-sealing overflow-proof floor drain of claim 1, wherein a water sealing gasket (312) is arranged at the position corresponding to the bottom of the upper water sealing member (310) on the bottom surface of the lower water sealing member (320).

8. The self-sealing overflow-proof floor drain according to claim 1, wherein a floor drain grate (230) is arranged on the top surface of the cover ring (2), a cover ring stepped hole (210) is arranged on the inner wall of the cover ring (2), and a filter screen (220) is arranged on the cover ring stepped hole (210).

9. The self-sealing overflow-preventing floor drain as claimed in claim 1, wherein the outer side wall of the cover ring (2) is in threaded connection with the inner side wall of the floor drain body (1).

10. The self-sealing overflow-preventing floor drain according to claim 1, wherein the outer side surface of the floor drain body (1) is provided with a waterproof wing ring (130).

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