CN2654729Y

CN2654729Y - Water drain pipe reverse flow prevention device

Info

Publication number: CN2654729Y
Application number: CN 200320106222
Authority: CN
Inventors: 李建国
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-14
Filing date: 2003-10-14
Publication date: 2004-11-10
Anticipated expiration: 2013-10-14

Abstract

The utility model relates to an anti-reverse irrigation device of drainage pipeline, belonging to the technology field that: the sewage of the family and city drainage pipelines are prevented from reverse irrigating caused by pipeline jam or spring tide effect, and the sewage countercurrent is prevented from flowing into rooms or submerging the urban roads. The utility model uses inverse-stop balls to prevent sewage from reverse irrigating from the outer pipes, more particularly, the diameter of the outlet is enlarged more than a time by using funnel-shaped changing diameter pipes, then is closely plugged with a U-shaped pipe (inverse-water bend), and then a similar to table-tennis ball body with diameter of 1.2 to 1.5 times than the inlet diameter of the changing diameter pipe is positioned into the connecting section of a changing diameter funnel and the U-shaped pipe through a threaded hole (the diameter is greater than that of the inverse-stop ball) on the bottom of the U-shaped pipe; the threaded hole on the bottom of the U-shaped pipe is sealed by a resisting screw cap (a plastic cylinder with a diameter about 3 mm is positioned in the inner center; the height is a half of the diameter of the U-shaped pipe) in order to resist the stemming and prevent the inverse-stop ball from washing away; the normal drainage is not effected; when the reverse irrigation happens, the inverse-stop ball flows upward, resisting the sewage reversing.

Description

The gutter backward flowing preventing device

The present invention relates to a kind of device that is used for dwelling house and municipal drainage pipeline are carried out checkization.Exactly be when external pipe takes place to block, adverse current sewage makes the check ball come-up in the device, and arrives the funnel top, gets lodged on the port, and sewage is intercepted, and has prevented the generation of pouring in down a chimney.

At present, known dwelling house and municipal drainage pipeline also do not have easy, effectively prevent the device of backing up of sewage.For a long time, only Qingdao just has a large amount of to cause the low layer resident family incident of being flooded to take place because of building resident family drainage pipe stops up every year, low layer resident family is suffered heavy losses, soaked distortion as senior floor by sewage, indoor stinking to high heaven, resident family's contradictory up and down, even own poker drainage pipe in addition make the self-insurance of trying every possible means of also having to of last layer resident family.The municipal drainage pipeline often because the flood tide effect makes inwelling, presses for a kind of device that reliably prevents backing up of sewage, and must can bear bigger buffer brake in addition.But, up to the present, also there be not the gutter backward flowing preventing device similar to this case through the online retrieval.

Goal of the invention of the present utility model provides a kind of and existing sewerage system compatibility, and the size dimension correspondence by adopting the method for check ball, overcomes above-mentioned defective, and is easy, practical, realize that drainage pipe prevents the purpose of pouring in down a chimney reliably, economically and safely.

The technical solution of the utility model is: consistent with existing pipe network on technical standard based on the PVC material, and now use the tubing compatibility, but withstand voltage properties requires than higher, and identical with water supply line.The i.e. joint that can match with existing indoor outlet conduit diameters such as basin, closet, floor drain or urban sewage pipeline with a kind of epimere, the stage casing is that tapering is the funnels of 30 degree, hypomere be length be 5 centimetres, expanded in diameter more than 1 times so that manage the reducer pipe that diameter connects with " U " by interior socket.Be the screw (diameter greater than check sphere diameter) of reducer pipe import caliber 1.2-1.5 spheroid doubly, similar table tennis then with diameter by " U " type pipe bottom, insert the linkage section of reducing funnel and " U " type pipe, (inside center has the plastic cylinder of diameter 3 millimeter with resistance row nut again, height is half of " U " type caliber) " U " type pipe bottom screw is sealed, obstruction is arranged in resistance on the one hand, the aspect prevents that also the check ball is flushed away in addition, be used for resistance row obstruction on the one hand, the aspect also keeps off down the check ball in addition.

The beneficial effects of the utility model are, at sewage during normally by bleeders such as indoor basin, closet, floor drains, the check ball is because gravitate, fall within on the water face in " U " type pipe, make sewage resemble usually non-resistance ground and flow into " U " type tube inlet, pass through the discharge of check ball side.Because there is a plastic cylinder at the center in the nut of " U " type pipe bottom, be used for resistance row obstruction on the one hand, the aspect also keeps off down the check ball in addition, prevents to be flushed away, and makes the check ball be in " U " type tube inlet section all the time; When external pipe took place to block, adverse current sewage rose " U " type pipe water face, check ball come-up, and arrive the bell mouth top, and get lodged on the port, sewage is intercepted, prevented the generation of pouring in down a chimney.Own simultaneously outwards draining row does not go out, and has known line clogging naturally, the dredging pipeline of can taking measures.In fact, when line clogging took place, because obstruction place mainly is the medium-soft material, if other outfall of pipeline that is blocked all has non-return device, the instruments of simply calming the anger such as general land used plug just can solve the line clogging problem; If stop up seriously, along with resident family upstairs constantly increases draining, it is increasing to make check ball and external pipe bear pressure, and obstruction can increase and the sliding even disintegration of pine occurs along with pressure.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.

Accompanying drawing is a structure principle chart of the present utility model, and as Figure of abstract.

1. funnel reducer pipes among the figure, 2. check ball, 3. " U " type pipe, 4. resistance row nut, 5. discharge connection.

As shown in drawings, the utility model is combined by funnel reducer pipe (1), check ball (2), " U " type pipe (3), discharge connection (5) and resistance row's nut (4).Wherein, the import of funnel reducer pipe (1) is connected with the drainage outlet of indoor drainage facility, and the outlet of funnel reducer pipe (1) connects the import of " U " type pipe (3); The import of (5) is taken in the outlet exit of " U " type pipe (3); The outlet of discharge connection (5) is connected with the drainage pipe import; Check ball (2) is closed in the empty chamber that forms with funnel reducer pipe (1) and " U " type pipe (3); And the nut inside center of resistance row's nut (4) has a plastic cylinder, highly is 0.5 times of " U " type caliber, is used for resistance row obstruction on the one hand, and the aspect also keeps off down the check ball in addition.Form the utility model with this.

Detailed process is as follows:

During first the use, during empty chamber that sewage flows into normally that funnel reducer pipe (1) and " U " type pipe (3) form, because the water effect of " U " type pipe (3), make by resistance row's nut (4) and be blocked in of the formation of inboard check ball (2) along with the water face, under buoyancy, check ball (2) is stopped on the empty indoor water face, from suitable for reading certain distance arranged, externally under the unimpeded situation of pipeline, sewage can be successfully flows through through the side of check ball (2) from top to bottom, discharges through cylinder (4), the discharge connection (5) of resistance row nut; When external pipe take place to stop up or external water pressure when being higher than the hydraulic pressure that funnel reducer pipe (1) locates, outside sewage drive in the wrong direction and on, empty indoor water face is risen, check ball (2) is peaked in the bell mouth of upper end, with the pipeline sealing, stop sewage to pass through, thereby avoid pouring in down a chimney accident.

Claims

1, a kind ofly overcomes the device that blow-off line pours in down a chimney, it is characterized in that combining by funnel reducer pipe (1), check ball (2), " U " type pipe (3), discharge connection (5) and resistance row's nut (4).Wherein, the import of funnel reducer pipe (1) is connected with the drainage outlet of indoor drainage facility, and the outlet of funnel reducer pipe (1) connects the import of " U " type pipe (3); The import of (5) is taken in the outlet exit of " U " type pipe (3); The outlet of discharge connection (5) is connected with the drainage pipe import; Check ball (2) is closed in the pipeline section of funnel reducer pipe (1) and " U " type pipe (3); And the nut inside center of resistance row's nut (4) has a plastic cylinder, highly is 0.5 times of caliber.

2, gutter backward flowing preventing device according to claim 1, it is characterized in that: the joint that epimere can close with existing indoor relative insertings of outlet conduit diameter such as basin, closet, floor drain or urban sewage pipeline, middle is the funnel of 30 degree for tapering, hypomere is that 1 times of expanded in diameter, length are 5 centimetres, interior socket arranged, be connected the middle empty chamber that forms the activity of check ball and play a role with " U " type pipe.

3, gutter backward flowing preventing device according to claim 1, it is characterized in that: diameter be funnel reducer pipe (1) inlet diameter 1.2-1.5 doubly, the check ball (2) of similar table tennis, place the pipeline section of funnel reducer pipe (1) and " U " type pipe (3), when the generation draining is poured in down a chimney, bear the pressure of the draining of driving in the wrong direction.

4, gutter backward flowing preventing device according to claim 1, it is characterized in that: it is the plastic cylinder of 3 millimeter that the nut inside center that is positioned at resistance row's nut (4) of " U " type pipe bottom has a diameter, it highly is 0.5 times of " U " type caliber, be used for resistance row obstruction on the one hand, the aspect also keeps off down the check ball in addition, prevents washed away.