CN109868887A - A kind of water seal floor drain - Google Patents

Abstract

The present invention provides a kind of water seal floor drains, including the snorkle that the closed floor drain core in bottom and suit are arranged in the floor drain core, offer drainage hole in the middle and upper part of the floor drain core, the lower end of the snorkle is lower than the horizontal plane where the drainage hole；The floor drain core can be flexible up and down in a certain range with the variation of the water in it.By setting floor drain core and snorkle, water seal is formed, the smell in sewer pipe is avoided to enter the room；And the floor drain core can be flexible up and down in a certain range with the variation of the water in it, in the case where floor drain director does not drain the time, water section in floor drain core evaporates so that liquid level reduces, it stretches up and down since floor drain core can change with the water in it, floor drain core is shunk, so that the distance between floor drain core lower end and snorkle lower end reduce, avoids the water seal liquid level in floor drain core lower than snorkle lower end, water seal is caused to be failed；Lasting water seal protection can be provided in this way, be conducive to the sealing performance for improving floor drain.

Description

A kind of water seal floor drain

Technical field

The invention belongs to floor drain technical fields, and in particular to a kind of water seal floor drain.

Background technique

Floor drain is the critical elements for connecting sewer drainage pipe and flooring, as the important composition portion in drainage system Point, the performance quality of floor drain directly affects indoor environmental quality and air quality.Sanitary sewage can be concentrated and be arranged by floor drain It is put into sewage conduct, keeps people's lives completely comfortable.

The foul smell in sewer pipe is entered the room by floor drain in order to prevent, generally uses water seal or check valve at present, right It is relatively good in blockading effect or water seal floor drain.Occur due to being certain between check valve and floor drain with gap, and often Dirt is attached on the end face that floor drain and check valve closure contact, prevent check valve is from being closed, so that the gas in sewer pipe Taste can be reached indoor by gap；Water seal floor drain by draining after in floor drain remain some water to block downcomer Smell in road enters the room；But be in interior continuous more days nobody when, the water evaporation of water seal is advantageously formed, so that under liquid level Drop, cannot play the role of block, so that the smell in sewer pipe reaches interior.

In addition, the water of washing machine discharge will also be flowed away by floor drain；But there are following problems: one, the row of current washing machine Water pipe can not with floor drain is closed is connected, size mismatches or fit clearance is excessive, so that the drainpipe installation of washing machine is not On, or there is wide arc gap back foul taste；The peculiar smell or even bacterium for leading to sewer do not enter back into washing machine internal, lead to washing machine The generation of internal peculiar smell and bacterium；Sewer peculiar smell and bacterium is avoided to exist by the gap of drainpipe and sewer to room It is interior.Two, water flow is too fast when due to washing machine drainage, and water cannot drain from floor drain in time, causes to be easy to when washing machine drainage anti- It overflows and gets ground wet, bring inconvenience.Three, since washing machine sewer pipe is hose, turn round insertion sewer or floor drain When bending it is irregular unsightly.

Summary of the invention

The present invention is directed to the above-mentioned problems in the prior art, provides a kind of water seal floor drain, can by setting snorkle It is flexible up and down with the variation of the water in it, avoid the occurrence of the water seal failure occurred due to the evaporation for the water for forming water seal.

To reach above-mentioned technical purpose, the present invention is implemented with the following technical solutions:

A kind of water seal floor drain, including the snorkle that the closed floor drain core in bottom and suit are arranged in the floor drain core, in institute The middle and upper part for stating floor drain core offers drainage hole, and the lower end of the snorkle is lower than the horizontal plane where the drainage hole；It is described Floor drain core can be flexible up and down in a certain range with the variation of the water in it.

Further, the floor drain core at least has one section of telescopic elastic tube.

Further, with the evaporation of the water in the floor drain core, so that the water in the floor drain core gradually decreases, institute It states the downward power that elastic tube is subject to be gradually reduced, so that the elastic tube gradually resets upwards.

Further, there is the floor drain core the first fixing pipe for being located at the elastic tube or more and second to fix Pipe, first fixing pipe and the second fixing pipe are tightly connected with elastic tube respectively.

Further, drainage hole is offered in the axially spaced-apart of first fixing pipe.

Further, drainage hole is offered in the axially spaced-apart of the elastic tube, the size of the drainage hole is with elastic tube Telescopic variation.

Further, it is equipped with drainage hole between first fixing pipe and the second fixing pipe, limits the elastic tube most The flexible limit part of big collapsing length.

Further, the flexible limit part is spaced multiple positive stop strip, and the upper end of the positive stop strip is fixed In the first fixing pipe, the lower end of the positive stop strip is fixed in the second fixing pipe.

Further, it is equipped with axial partition in the snorkle, the partition is by the space inside the snorkle It is partitioned into the first lower water passage for washing machine drainage and the second lower water passage for land drainage.

Further, in capping of the upper end of the snorkle equipped with water passage under closing described first, in the capping Mouth is connect equipped with what is be connected to drainpipe.

Further, the cover for further including floor drain foundation trench and being located at the top of floor drain foundation trench, the bottom of the floor drain foundation trench is opened If the collector nozzle being connected to sewer pipe, the floor drain core and the diving seal of tube for being set with setting are fixed at the collector nozzle.

Further, the port for filter opening being offered on the cover and being connected to washing machine sewer pipe, described logical Sealing is fixed with the first connecting tube at mouthful.

It further, further include the bend pipe being tightly connected with the upper end of first connecting tube, the other end of the bend pipe It is removably tightly connected with drainpipe.

Further, connecing for water passage is sealedly connected with the second connection under described first between mouth and the first connecting tube Pipe.

Further, the first turn-up portion that the upper end of the floor drain core is equipped with outside bending and radially extends, described first Turn-up portion sealing is located on the bottom surface of the floor drain foundation trench.

Further, first annular sealing is equipped between first turn-up portion and the floor drain foundation trench.

Further, the second turn-up portion that the upper end of the snorkle is equipped with outside bending and radially extends, described second Turn-up portion seals the top for being superimposed upon first turn-up portion.

Further, the second ring packing is equipped between first turn-up portion and second turn-up portion.

Further, first turn-up portion and second turn-up portion are sealed by compressional deformation.

Further, in check valve of the lower end of the snorkle equipped with water passage under can closing second.

Further, the check valve is flexible sheet, and the fixed part extended downwardly is equipped in the lower end of the snorkle, Radial fixation hole is offered on the fixed part, and the elasticity to match with the fixation hole is equipped on the check valve Column, the elastic are located in mounting hole, and are equipped with plug of the block on the outside of the fixation hole in the outer end of the elastic.

Further, it to be threadedly coupled between the connecting tube and port, is equipped in the lower end of the connecting tube radial The rib of extension, the rib block is in the lower section of the cover.

Further, the collector nozzle of the floor drain foundation trench is sealedly connected with sewer pipe, the floor drain core and diving pipe sleeve In the sewer pipe.

Further, the radial distance between the sewer pipe and floor drain core lower part be less than floor drain core lower part with Radial distance between snorkle lower part.

Further, the radial ringed area between the sewer pipe and floor drain core lower part and the floor drain core lower end with Radial ringed area equation between snorkle lower end.

Water seal floor drain provided by the invention, by the floor drain core and snorkle of setting suit setting, and in the floor drain core Middle and upper part offer drainage hole, the lower end of the snorkle is lower than the horizontal plane where the drainage hole, so that in floor drain core Interior drainage hole water below cannot be discharged, and form water seal, the smell in sewer pipe is avoided to enter the room；And the floor drain Core can be flexible up and down in a certain range with the variation of the water in it, in the case where floor drain director does not drain the time, ground The water section of leakage in-core evaporates so that liquid level reduction, stretches, at this time floor drain up and down since floor drain core can change with the water in it Core is shunk, so that the distance between floor drain core lower end and snorkle lower end reduce, avoids the water seal liquid level in floor drain core lower than latent Water pipe lower end, causes water seal to be failed；Lasting water seal protection can be provided in this way, be conducive to the sealing performance for improving floor drain.

After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear Chu.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of one embodiment of water seal floor drain proposed by the invention；

Fig. 2 is overlooking structure diagram in Fig. 1；

Fig. 3 be in Fig. 2 A-A to schematic cross-sectional view；

Fig. 4 is B-B direction schematic cross-sectional view in Fig. 2；

Fig. 5 is the structural schematic diagram in Fig. 4 after floor drain core contraction；

Fig. 6 is the configuration schematic diagram of floor drain；

Fig. 7 is the enlarged structure schematic diagram of floor drain core in Fig. 6；

Fig. 8 is the enlarged structure schematic diagram of snorkle in Fig. 6.

Fig. 9 is the structural schematic diagram of second embodiment of water seal floor drain proposed by the invention；

Figure 10 is the enlarged structure schematic diagram of floor drain core in Fig. 9；

Figure 11 is the structural schematic diagram of the third embodiment of water seal floor drain proposed by the invention.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.

In the description of the present invention, it should be noted that the side of the instructions such as term "inner", "upper", "lower", "left", "right" Position or positional relationship are positional relationship based on the figure, are merely for convenience of description of the present invention and simplification of the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " are used for description purposes only, and should not be understood as Indication or suggestion relative importance.

- Fig. 8 refering to fig. 1 is one embodiment of water seal floor drain proposed by the invention, and a kind of water seal floor drain includes bottom The snorkle 5 that closed floor drain core 6 and suit are arranged in floor drain core 6, offers drainage hole in the middle and upper part of floor drain core 6 61, lower than the horizontal plane where drainage hole 61, water after the completion of draining lower than drainage hole 61 can remain in for the lower end of snorkle 5 In floor drain core 6, from the liquid level in floor drain core 6 to the lower end of snorkle 5 water formed water seal so that smell etc. cannot pass through Floor drain；Floor drain core 6 is arranged can be flexible up and down in a certain range with the variation of the water in it；It is not arranged in floor drain director's time In the case where water, the water section in floor drain core 6 evaporates so that liquid level reduces, since floor drain core 6 can be in the variation of the water in it Lower flexible, floor drain core 6 is shunk at this time, so that the distance between 6 lower end of floor drain core and 6 lower end of snorkle reduce, avoids floor drain core 6 Interior water seal liquid level is lower than 5 lower end of snorkle, and water seal is caused to be failed；Lasting water seal protection can be provided in this way, be conducive to mention The sealing performance of high floor drain.

Shown in Figure 7 in the present embodiment, floor drain core 6 at least has one section of telescopic elastic tube 66, passes through elastic tube 66 realize in the up-down direction flexible of floor drain cores 6, and elastic tube 66 can be using rubber tube etc..And floor drain core has position respectively In stiff first fixing pipe 67 and the second fixing pipe 68 of about 66 elastic tube, the first fixing pipe 67 and the second fixing pipe 68 It is tightly connected respectively with elastic tube 66；The flexible of floor drain core 6 is realized by setting elastic tube 66 in this way, it is fixed by setting first Pipe 67 and the second fixing pipe 68, for keeping the contour structures of floor drain core 6, so that floor drain core 6 only has in the up-down direction Deformation can；The sealing for being conducive to floor drain core 6 is fixed and the ability of the receiving water impact of floor drain core 6.

In the present embodiment, drainage hole 61, that is, setting elastic tube 66 are offered in the axially spaced-apart of the first fixing pipe 67 Under drainage hole 61.After the completion of draining, the remaining water of 61 or less drainage hole forms water seal in floor drain core 6, at this time The water leaked in core 6 is maximum, due to the gravity of the water in floor drain core 6, so that elastic tube 66 extends, is in stretching most lower Position；Do not drained when in long period floor drain, the appearance of water in floor drain core 6 is gradually evaporated so that the water in floor drain core 6 by Decrescence few, the downward power that elastic tube 66 is subject to also is gradually reduced, so that elastic tube 66 gradually resets upwards, so that floor drain core 6 The distance between lower end and the lower end of snorkle 5 gradually become smaller；Variation gradual in this way, the liquid level be conducive in floor drain core 6 are long Time is maintained at 61 close beneath of drainage hole, is conducive to the lower end of snorkle 5 lower than the liquid level in floor drain core 6, is conducive to mention High lasting water seal protection, the liquid level avoided the occurrence of in floor drain core 6 is lower than the lower end of snorkle 5, and avoids floor drain core 6 and stretch The too fast caused drainage hole 61 that passes through for forming water seal that contracts flows out.

In the present embodiment, it is long that restriction 61 maximal dilation of elastic tube is equipped between the first fixing pipe 67 and the second fixing pipe 68 The flexible limit part of degree；In floor drain draining, when the rapidly water of especially dynamic discharge flows through floor drain discharge, for floor drain core 6 have biggish downward impact force；By the way that flexible limit part is arranged, avoids elastic tube 61 from bearing biggish power, cause elasticity Deformation failure.In floor drain draining, the elongation of elastic tube 66, the lowermost position in stretching are set, and the second fixing pipe 68 receives larger Impact force be transmitted in the first fixing pipe 67 by flexible limit part, that is, setting flexible limit part length and elastic tube Maximum length after 61 elongations is corresponding.Specifically, flexible limit part be spaced multiple positive stop strip, positive stop strip it is upper End is fixed in the first fixing pipe 67, and the lower end of positive stop strip is fixed in the second fixing pipe 68；Preferably, positive stop strip is rope.

It is shown in Figure 4 in the present embodiment, axial partition 51, that is, partition 51 and diving are equipped in snorkle 5 The axis of pipe 5 is parallel；Partition 51 by the space interval inside snorkle 5 at the be used for washing machine drainage first lower water passage 52, And the second lower water passage 53 for land drainage.1 bottom surface of floor drain foundation trench is located at by setting snorkle 5 and is extended downwardly, So that snorkle 5 is almost not take up the space in floor drain foundation trench 1, so that in floor drain foundation trench 1 there is biggish accommodation space to be used for The water that ground flows into is accommodated, the case where land drainage occur not in time is effectively prevented from.By will be divided under first between snorkle 5 Water passage 52 and the second lower water passage 53 are that washing machine drainage and land drainage pass through different spaces in snorkle 5 respectively, keep away Laundry is exempted from the biggish draining of water flow, the case where by returning water has occurred, that is, the first lower water passage 52 is arranged with washing machine Water pipe 10 is connected to.Specifically, being equipped in capping 55 in capping 55 of 5 upper end of snorkle equipped with water passage 52 under closing first What is be connected to drainpipe 10 connects mouth 551.

In the present embodiment, floor drain further includes floor drain foundation trench 1 and the cover 2 for being located at 1 top of floor drain foundation trench, is opened on cover 2 Equipped with filter opening 21 and the port being connected to washing machine sewer pipe 10；It opens up in the bottom of floor drain foundation trench 1 and connects with sewer pipe 20 Logical collector nozzle, the floor drain core 6 and the sealing of snorkle 5 for being set with setting are fixed at collector nozzle；Floor drain core 6 and snorkle 5 in this way Down along being contained in sewer pipe 2, so that the Design of length of floor drain core 6 and snorkle 5, when almost unrestricted, increases ground The length for leaking core 6 and snorkle 5 is conducive to the height for increasing water seal, avoids the occurrence of the water surface in water seal as far as possible and be reduced to diving Situation below the lower end of pipe 5 can select optimal length.

In the present embodiment, it is equipped with the first connecting tube 3 to match in the passage port of cover 2, the sealing of the first connecting tube 3 is fixed In passage port.It is fixed on passage port by the sealing of the first connecting tube 3, washing machine sewer pipe 10 is connected to port；Such drainpipe 10 can be not inserted into cover 2, the sealing of drainpipe 10 and the first connecting tube 3 be connected to can, avoid the occurrence of washing machine drainage flow path Fit-up gap, be conducive to improve washing machine drainage flow path leakproofness, avoid the occurrence of gap back foul taste or return regimen condition；And Filter opening 21 is offered on cover 2, the water on ground can flow into floor drain component by filter opening, that is, floor drain component can be same Shi Jinhang washing machine drainage and land drainage.

In the present embodiment, floor drain component further include with the upper end of the first connecting tube 3 be tightly connected bend pipe 4, bend pipe 4 it is another One end and drainpipe 10 are removably tightly connected；By the way that bend pipe 4 is arranged, grasped first is that the sealing of drainpipe 10 and bend pipe 4 is assembled Make the assembly efficiency for being simply conducive to improve drainpipe 10；Second is that draining water flow is limited to fixed flow direction by bend pipe 4, favorably In the smoothness of draining water flow；Third is that bend pipe 4 is the right-angle structure of rule, be conducive to the beauty of floor drain component facade.It is preferably provided with Bend pipe 4 is removably connect with the first connecting tube 3, after the disassembly of drainpipe 10, bend pipe 4 can also be dismantled, not had to occupancy face The interior space on 2 top of lid.

Shown in Figure 8 in the present embodiment, connecing for water passage 52 seals between mouth 551 and the first connecting tube 3 under first It is connected with the second connecting tube 7, the lower end sealing of the second connecting tube 7, which is fixed on, to be connect on mouth 551, and the second connecting tube 7 is hose；Pass through First lower water passage 52 is connect by the second connecting tube 7 of sealed set with the first connecting tube 3, so that washing machine sewer pipe 10 Draining all flows into the first lower water passage 52.The sealed connection for being conducive to the second connecting tube 7 and the first lower water passage 52, is conducive to The efficiency of the second connecting tube 7 and the first lower assembly of water passage 52 is improved, and increases the leakproofness after fixing.Washing machine is arranged in this way Water flow routes the first lower water passage 52 and ground of drainpipe 10, bend pipe 4, the first connecting tube 3, the second connecting tube 4, snorkle 5 Core 6 is leaked to form；Specifically, being discharged first from drainpipe 10, bend pipe 4, the first connecting tube 3, the second connecting tube 4 are flowed through, is arrived later It up to the first lower water passage 52 of snorkle 5, and impacts from 5 lower end of snorkle, reach in floor drain core 6；Later along floor drain core 6 Space between snorkle 5 flows up, and reaches drainage hole 61 and flows out floor drain core 6.

First flange shown in Figure 7 in the present embodiment, that the upper end of floor drain core 6 is equipped with outside bending and radially extends Portion 63, the sealing of the first turn-up portion 63 is located on the bottom surface of floor drain foundation trench 1, that is, sealing is set between floor drain core 6 and floor drain foundation trench 1 It sets, is conducive to sealing and fixing for floor drain core 6 by the way that the first turn-up portion 63 is arranged.Specifically, in the first turn-up portion 63 and floor drain First annular sealing is equipped between foundation trench 1, avoid foul smell in sewer pipe 20 by the first turn-up portion 63 and floor drain foundation trench 1 it Between gap, be dispersed into interior.

Second flange shown in Figure 8 in the present embodiment, that the upper end of snorkle 5 is equipped with outside bending and radially extends Portion 57, the second turn-up portion 57 seal the top for being superimposed upon the first turn-up portion 63, are conducive to dive under water by the way that the second turn-up portion 57 is arranged Pipe 5 seals and fixes；And very close to each other between the second turn-up portion 57 and the first turn-up portion 6, the foul smell in sewer pipe 20 Entered in floor drain core 6 by drainage hole 61, avoids foul smell by the gap between the first turn-up portion 63 and floor drain foundation trench 1, distribute To interior；Foam is avoided to reach in floor drain foundation trench 1 from spilling between leakage core 6 and snorkle 5 simultaneously.

It is in the first turn-up portion in the present embodiment for the sealed set between the first turn-up portion 63 and the second turn-up portion 57 63 and second are equipped with the second ring packing between turn-up portion 57.In other implementations, can also by by the first turn-up portion 63 with Second turn-up portion 57 is sealed by compressional deformation.

In the present embodiment, after washing machine drainage or land drainage flow through snorkle 5, water flow enters floor drain core 6 and floor drain In space between core 6 and snorkle 5, flowed through in the space that drainage hole 61 reaches between snorkle 5 and sewer pipe 20 later, Finally flowed along sewer pipe 20；Thus the radial distance between 6 lower part of sewer pipe 20 and floor drain core is less than under floor drain core 6 Radial distance between 5 lower part of portion and snorkle, is preferably provided with, radial ringed between 6 lower part of sewer pipe 20 and floor drain core Area is equal to the radial ringed area between 5 lower part of 6 lower part of floor drain core and snorkle, is conducive to the row for improving floor drain component in this way Outlet capacity avoids the occurrence of the case where water flow is trickled not in time as far as possible.

It is second embodiment of water seal floor drain proposed by the invention refering to Fig. 9-Figure 10, the present embodiment and first The main distinction of embodiment is that position difference is arranged in elastic tube on floor drain core, and other structures can use and first reality Apply the identical structure of example.

A kind of water seal floor drain includes the snorkle 5 that the closed floor drain core 6 in bottom and suit are arranged in floor drain core 6, The middle and upper part of floor drain core 6 offers drainage hole 61, and the lower end of snorkle 5 is being drained lower than the horizontal plane where drainage hole 61 Can remain in floor drain core 6 at the rear water lower than drainage hole 61, from the liquid level in floor drain core 6 to the lower end of snorkle 5 Water forms water seal, so that smell etc. cannot pass through floor drain；Be arranged floor drain core 6 can with the water in it variation in a certain range It is flexible up and down；In the case where floor drain director does not drain the time, water section in floor drain core 6 evaporates so that liquid level reduces, by Flexible up and down, the contraction of floor drain core 6 at this time can be changed with the water in it in floor drain core 6, so that 6 lower end of floor drain core and snorkle 6 The distance between lower end reduces, and avoids the water seal liquid level in floor drain core 6 lower than 5 lower end of snorkle, water seal is caused to be failed；In this way may be used To provide lasting water seal protection, be conducive to the sealing performance for improving floor drain.

In the present embodiment, floor drain core 6 at least has one section of telescopic elastic tube 66, realizes floor drain core by elastic tube 66 6 in the up-down direction flexible, elastic tube 66 can be using rubber tube etc..And floor drain core, which has, to be located on elastic tube 66 Under stiff first fixing pipe 67 and the second fixing pipe 68, the first fixing pipe 67 and the second fixing pipe 68 respectively with elastic tube 66 are tightly connected；The flexible of floor drain core 6 is realized by setting elastic tube 66 in this way, it is solid by the first fixing pipe of setting 67 and second Pipe 68 is determined, for keeping the contour structures of floor drain core 6, so that floor drain core 6 only has deformation can in the up-down direction；Favorably It is fixed and the ability of the receiving water impact of floor drain core 6 in the sealing of floor drain core 6.

In the present embodiment, drainage hole 61 is offered in the axially spaced-apart of elastic tube 66, the size of drainage hole 61 is with elastic tube 66 telescopic variation.In floor drain draining, the elongation of elastic tube 66, the lowermost position in stretching are set, at this time due in elastic tube 66 Elongation, drainage hole 61 also follows elongation, becomes larger, and is conducive to the discharge of the water in floor drain core 6 in this way, is conducive to improve floor drain Displacement.After the completion of draining, the remaining water of 61 or less drainage hole forms water seal in floor drain core 6, at this time the water in floor drain core 6 Maximum, due to the gravity of the water in floor drain core 6, so that the elongation of elastic tube 66, the lowermost position in stretching are set；When longer Time floor drain does not drain, and the water appearance in floor drain core 6 is gradually evaporated, so that the water in floor drain core 6 gradually decreases, elastic tube The 66 downward power being subject to also are gradually reduced, so that elastic tube 66 gradually resets upwards, so that drainage hole 61 also gradually becomes smaller again Position, so that the distance between 6 lower end of floor drain core and the lower end of snorkle 5 gradually become smaller；Variation gradual in this way, is conducive to floor drain Liquid level in core 6 is maintained at 61 close beneath of drainage hole for a long time, is conducive to the lower end of snorkle 5 lower than in floor drain core 6 Liquid level is conducive to improve lasting water seal protection, and the liquid level avoided the occurrence of in floor drain core 6 is lower than the lower end of snorkle 5, and keeps away Exempted from floor drain core 6 stretch it is too fast caused by form the water of water seal and flowed out by drainage hole 61.Drainage hole 61 also gradually becomes smaller simultaneously It resets, reduces the connection area between floor drain core 6 and lower aquaporin 20, reduce water in floor drain core 6 to floor drain pipeline 20 The path of interior evaporation advantageously reduces the evaporation rate of water in floor drain core 6.

Refering to fig. 11, it is the third embodiment of water seal floor drain proposed by the invention, the present embodiment and first implementation The main distinction of example is that water passage lower end is equipped with check valve under second, and other structures can use and one embodiment Identical structure.

In the present embodiment, in the case where the lower end of snorkle 5 is equipped with and can close second, the check valve 54 of water passage 52, avoids doing washing The water gone out when machine drains from the first lower water passage 52 of snorkle 5, especially prevents foam from entering in the first lower water passage 51, It avoids the occurrence of excessive.Preferably, check valve 54 is flexible sheet, and the fixed part 56 extended downwardly is equipped in the lower end of snorkle 5, Radial fixation hole is offered on fixed part 56, and the elastic 541 to match with fixation hole, elasticity are equipped on check valve 54 Column 541 is located in mounting hole, and is equipped with plug 542 of the block on the outside of fixation hole in the outer end of elastic 541.Pass through elastic 541 flexible deformation realizes that the opening and closing of check valve 54 makes check valve 54 in land drainage in water impact to check valve 54 It opens, 541 flexible deformation of elastic；The flexible deformation of elastic 541 can provide the power of reset.

The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.

Claims (10)

1. a kind of water seal floor drain including the closed floor drain core in bottom and is set with the snorkle being arranged in the floor drain core, The middle and upper part of the floor drain core offers drainage hole, and the lower end of the snorkle is lower than the horizontal plane where the drainage hole；Its It is characterized in that, the floor drain core can be flexible up and down in a certain range with the variation of the water in it.

2. water seal floor drain according to claim 1, which is characterized in that the floor drain core at least has one section of telescopic bullet Property pipe.

3. water seal floor drain according to claim 2, which is characterized in that the floor drain core, which has, is located at the elastic tube Upper and lower the first fixing pipe and the second fixing pipe, first fixing pipe and the second fixing pipe are tightly connected with elastic tube respectively.

4. water seal floor drain according to claim 3, which is characterized in that offered in the axially spaced-apart of first fixing pipe Drainage hole.

5. water seal floor drain according to claim 2, which is characterized in that offer and be lauched in the axially spaced-apart of the elastic tube Hole, the size of the drainage hole with elastic tube telescopic variation.

6. water seal floor drain according to claim 3, which is characterized in that between first fixing pipe and the second fixing pipe Equipped with the flexible limit part for limiting the elastic tube maximal dilation length.

7. water seal floor drain according to claim 6, which is characterized in that the flexible limit part is spaced multiple Positive stop strip, the upper end of the positive stop strip are fixed in the first fixing pipe, and the lower end of the positive stop strip is fixed in the second fixing pipe.

8. water seal floor drain according to any one of claims 1 to 7, which is characterized in that be equipped in the snorkle axial Partition, the partition by the space interval inside the snorkle at the be used for washing machine drainage first lower water passage and The second lower water passage for land drainage.

9. water seal floor drain according to claim 8, which is characterized in that be equipped in the upper end of the snorkle and close described the The capping of water passage once connects mouth equipped with what is be connected to drainpipe in the capping.

10. water seal floor drain according to any one of claims 1 to 7, which is characterized in that further include floor drain foundation trench and being located at ground The cover at the top of foundation trench is leaked, the bottom of the floor drain foundation trench opens up the collector nozzle being connected to sewer pipe, is set with the floor drain of setting Core and the diving seal of tube are fixed at the collector nozzle.