CN210623864U

CN210623864U - Water supply and drainage pipeline connecting structure

Info

Publication number: CN210623864U
Application number: CN201921732972.4U
Authority: CN
Inventors: 庄李杰; 庄泽川; 庄淑龙
Original assignee: Guangdong Qianxing Construction Engineering Co Ltd
Current assignee: Guangdong Qianxing Construction Engineering Co Ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-05-26
Anticipated expiration: 2029-10-15

Abstract

The utility model relates to a water supply and drainage pipeline connecting structure, which comprises two water pipes inserted with flange units, wherein a fastening piece for fixing the flange units is arranged between the flange units and the water pipes; the flange unit includes two connecting blocks, and the connecting block link up there is the passageway, and the inner peripheral surface arch of passageway has the stopper, and stopper scarf joint cooperation has rubber circle group, and rubber circle group links up there is the circular slot, and the water pipe passes through rubber circle group and stopper butt, is provided with the fastener of connecting two fixed flange units between two water pipes. Through adopting above-mentioned technical scheme, utilize two sets of flange units in order to connect two water pipes for the connection of water pipe is easy and simple to handle, utilizes the clearance between two sets of rubber ring group seal water pipe and the flange unit, utilizes two rubber ring groups to support tight deformation each other when two water piping connection simultaneously, with the clearance between two sealed water pipes, the condition that appears the infiltration when being favorable to reducing two water piping connection, and then reaches water-saving effect.

Description

Water supply and drainage pipeline connecting structure

Technical Field

The utility model belongs to the technical field of the pipe connection technique and specifically relates to a water supply and drainage pipeline connection structure is related to.

Background

In water supply and drainage engineering work progress, often need lay water supply and drainage pipeline, sealed between the current adjacent chicken row book pipeline mainly relies on to inlay "O" type circle of establishing between two adjacent water supply and drainage pipelines to realize sealing, however, because "O" type circle is less relatively with water supply and drainage pipeline's area of contact, and two lateral walls of "O" type circle generally offset with water supply and drainage pipeline's tip, make "O" type circle appear ageing phenomenon in water supply and drainage pipeline long-term use, or "O" type circle appears the off normal, make the phenomenon that leaks appear easily between the adjacent water drainage pipeline. In addition, under the great environment of vibrations, the water supply and drainage pipeline receives vibrations extrusion about easily, and the condition that becomes flexible can appear in the "O" type circle of installing between the pipeline, and intraductal water spills when easy to cause the waste of water resource. Therefore, there is room for improvement.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a water supply and drainage pipeline connection structure has the advantage of the prevention of seepage water of being convenient for.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a water supply and drainage pipeline connecting structure comprises two water pipes, wherein flange units are inserted at the end parts of the water pipes, and a plurality of abutting pieces for fixing the flange units are arranged between the flange units and the water pipes; the flange unit includes two interconnect's connecting block, the connecting block link up there is the passageway, two interconnect the passageway of connecting block communicates each other, the tip of water pipe is located in the passageway of flange unit, the inner peripheral surface of the passageway of connecting block just keeps away from the outside arch of one end of water pipe has the stopper, the stopper scarf joint cooperation has rubber circle group, rubber circle group is right the stopper carries out circumference spacing, rubber circle group link up have with the circular slot that communicates in the water pipe, the terminal surface of water pipe with the butt is organized to the rubber circle, rubber circle group protrusion the connecting block is kept away from the terminal surface setting of water pipe, two be provided with between the flange unit and connect fixed two the fastener of flange unit.

By adopting the technical scheme, when a pipeline connecting structure is required to be installed between two water pipes, the connecting end of the water pipe is placed in the channel of one connecting block, then the rubber ring group is matched with the limiting block in an embedded mode, then the other connecting block is installed, so that the two connecting blocks are simple and convenient to connect and fix, the two connecting blocks form a flange unit structure, the abutting piece is connected with the connecting block and the water pipe, the flange unit and the water pipe are kept in a relatively fixed state, the flange unit and the water pipe form an integrated structure, and the flange unit is simple and convenient to install and operate; the rubber ring group is communicated with the circular groove communicated with the water pipe, the end part of the water pipe is abutted against the limiting block through the rubber ring group, so that water in the water pipe can circulate through the circular groove of the rubber ring group, and the condition that the water in the water pipe seeps to a channel of the connecting block from a position between the end part of the water pipe and the side surface of the water pipe, close to the flange unit, of the rubber ring group is reduced by the rubber ring group, so that the anti-seepage effect of the flange unit is improved; in addition, through setting up the side setting that the flange unit was kept away from to rubber circle group protrusion in the connecting block water pipe, utilize the fastener to connect two flange units of two water pipes fixed simultaneously, and then make the bulge of the rubber circle group of two adjacent flange units extrude each other to be favorable to reducing the condition that the water in the water pipe oozes from the position between two flange units, from this, improve the holistic leakproofness of water supply and drainage pipe connection structure and stability.

The utility model discloses further set up to: the outer peripheral surface of the water pipe is inwards provided with a ring groove, the outer peripheral surface of the connecting block is provided with a plurality of abutting holes communicated with the channel, and when the water pipe is connected and matched with the flange unit, the abutting holes are arranged opposite to the groove bottom of the ring groove; the abutting part comprises an abutting bolt, the abutting bolt is in threaded connection with the abutting hole, a positioning block is fixedly connected to one end, close to the channel, of the abutting bolt, and when the water pipe is connected and matched with the flange unit, the positioning block abuts against the groove bottom of the annular groove through the abutting bolt.

Through adopting above-mentioned technical scheme, through setting up the annular, utilize to support tight screw thread and butt hole threaded connection, thereby make the tank bottom of locating piece and annular support tightly each other, thereby make butt bolt and annular keep the relatively fixed state, and then make connecting block and water pipe keep relatively fixed, make the tank bottom of locating piece and annular support tightly fixed easy and simple to handle each other, and reduce because of connecting block and water pipe relative movement, and make the condition of flange unit and water pipe separation, thereby improve connecting block and water pipe overall structure's stability.

The utility model discloses further set up to: the outer peripheral face of each connecting block is provided with a fixing block in a protruding mode, when the two connecting blocks are connected with each other, the fixing blocks abut against the fixing blocks of the other connecting block, and the fixing blocks abutting against each other are fixed through bolts.

Through adopting above-mentioned technical scheme, connect two fixed blocks of mutual butt through the bolt and fix to when making two connecting block mutual butt, and reach the effect of two fixed connecting blocks, and then make the fixed easy and simple to handle of connection of two connecting blocks.

The utility model discloses further set up to: the connecting block is parallel to a plurality of through holes are communicated with the end face of the water pipe in the length direction, the fastener comprises locking bolts, the through holes of the two flange units of the water pipe are adjacent to each other and are arranged oppositely, the locking bolts penetrate through the through holes of the two flange units, and the locking bolts clamp the two flange units through nuts.

Through adopting above-mentioned technical scheme, utilize the bolt to link up the through-hole of the connecting block of two sets of flange units, then the nut and the nut through the bolt press from both sides two sets of flange units, and then make two sets of flange units extrude the rubber circle group between the two, make the rubber circle group parallel and along extending all around, make the fixed easy and simple to handle of connection of two sets of flange units, make the convenient operation of two sets of flange unit extrusion rubber circle groups simultaneously, and then improve the waterproof nature between two sets of flange units, with the water that reduces in the water pipe from the position seepage flow between two sets of flange units to the outside condition that causes the waste.

The utility model discloses further set up to: the end face, far away from the water pipe, of the connecting block is provided with a placing groove, the rubber ring group comprises a sealing gasket, the sealing gasket is in splicing fit with the placing groove, and the side face, far away from the connecting block, of the sealing gasket protrudes out of the end face, far away from the water pipe, of the connecting block; the sealing gasket is integrally connected with a connecting ring, and the outer peripheral surface of the connecting ring is abutted against the inner peripheral surface of the limiting block, which is far away from the connecting block; the clamping ring is kept away from the one end an organic whole that fills up is connected with the position circle, the position circle is located in the passageway, the circular slot link up sealed pad, clamping ring and position circle set up, the mouth of pipe of water pipe with the circular slot is just to setting up, just water pipe and affiliated position circle butt.

By adopting the technical scheme, the connecting ring is arranged to connect the sealing gasket and the positioning ring, so that the connecting ring, the positioning ring and the sealing gasket form an integrated structure, the number of parts is reduced, the processing cost is saved, and the omission of the parts of the sealing assembly is reduced; by arranging the positioning ring, the end part of the water pipe is tightly abutted against the positioning ring, so that the situation that water in the water pipe seeps out from the position between the water pipe and the positioning ring is favorably reduced; through setting up the standing groove for sealed placing of filling up is easy and simple to handle, is favorable to reducing the side of excessive sealed pad protrusion in the connecting block simultaneously, and then reduces the extrusion surplus, makes two flange unit pressurized seal pad's convenient operation, is favorable to reducing the condition of the water seepage flow from the position between two sets of flange units in the water pipe simultaneously.

The utility model discloses further set up to: the fasteners of the flange unit are distributed at equal angles around the axis of the flange unit.

Through adopting above-mentioned technical scheme, with the equal angular distribution of axis that a plurality of fasteners wound the flange unit for two sets of flange units are even around the distribution of the connection point of the axis of rubber circle group, make the atress even, and improve two sets of flange unit connection structure's stability, reduce two sets of flange unit and connect unstability and the condition of fracture or perk appears.

The utility model discloses further set up to: the plurality of abutting pieces are distributed at equal angles around the axis of the flange unit.

Through adopting above-mentioned technical scheme, through the equal angular distribution of axis that winds the flange unit with a plurality of tight pieces that support to make the global atress of the tank bottom of the annular of water pipe even, and then improve the fixed stability of water pipe installation, thereby reduce and make the crooked condition of water pipe appear because of the water pipe atress is uneven.

The utility model discloses further set up to: the side face, away from the other connecting block of the flange unit, of the connecting block is integrally connected with an extension block.

Through adopting above-mentioned technical scheme, through setting up the outer peripheral face that the extension piece surrounds the water pipe to increase the area that the flange unit cup jointed the water pipe, be favorable to improving flange unit and water piping connection's stability, be favorable to reducing the crooked condition of water pipe appearance simultaneously.

To sum up, the utility model discloses following beneficial effect has:

1. two groups of flange units are arranged, so that two water pipes can be connected conveniently, and the connection operation of the two water pipes is simple and convenient;

2. through setting up two sets of rubber ring groups to the clearance between sealed water pipe and the flange unit utilizes two sealed pads to support tightly the deformation each other when two water piping connection simultaneously, with the clearance between two sealed water pipes, the condition that appears leaking or oozing water when being favorable to reducing two water piping connection, and then reaches water-saving effect.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is an exploded sectional view of the present embodiment;

fig. 3 is a schematic view of the overall structure of the connecting block of the present embodiment.

Reference numerals: 1. a water pipe; 11. a ring groove; 2. a flange unit; 21. connecting blocks; 211. a channel; 212. a limiting block; 213. a stretching block; 214. a placement groove; 215. a fixed block; 216. a straight hole; 217. abutting against the hole; 218. a through hole; 3. a rubber ring group; 31. a circular groove; 32. a connecting ring; 33. a gasket; 34. positioning rings; 4. an abutting piece; 41. tightly abutting against the bolt; 411. positioning blocks; 5. a fastener; 51. and locking the bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1 to 2, the utility model provides a water supply and drainage pipeline connection structure, including two water pipes 1, the outer peripheral face of the one end of water pipe 1 is inwards opened has annular 11, and annular 11 all has the distance along the length direction's of water pipe 1 both ends, and the cross section of annular 11 is the rectangle. Water pipe 1 is followed its length direction and is just being close to the one end of annular 11 and pegged graft and has flange unit 2, and flange unit 2 includes two interconnect's connecting block 21, and connecting block 21 is the semicircle body for the cross section, and connecting block 21 has passageway 211 along lining up of its cross-section extending direction's terminal surface, and the cross section of passageway 211 is the semicircle type, and the axis of passageway 211 and the coaxial setting of the axis of connecting block 21.

The inner peripheral surface of the channel 211 of the connecting block 21 protrudes outwards to form a limiting block 212, the limiting block 212 extends outwards around the axis of the channel 211 along the edge of the cross section of the channel 211 to form a coplanar arrangement with the side surface of the connecting block 21 facing the other connecting block 21, the limiting block 212 is arranged along the length direction of the channel 211 and the side surface far away from the water pipe 1 and the connecting block 21 along the length direction of the channel 211 and the end surface far away from the water pipe 1 in a coplanar arrangement, and the shape of the section of the limiting block 212 along the direction perpendicular to the length direction of the channel 211.

The connecting block 21 is integrally connected with an extension block 213 along the length direction of the channel 211 and far away from the end face of the limit block 212, the cross section of the extension block 213 is semicircular, the diameter of the outer peripheral surface of the extension block 213 is smaller than that of the connecting block 21, and the inner peripheral surface of the extension plate and the inner peripheral surface of the channel 211 are arranged in a coplanar manner.

As shown in fig. 2 to fig. 3, the connecting block 21 is provided with a placement groove 214 (as shown in fig. 3) along the length direction of the channel 211 and near the end surface of the stop block 212, and the cross section of the placement groove 214 is circular. The limiting block 212 is embedded and matched with the rubber ring group 3, and the rubber ring group 3 is made of rubber materials and has strong friction force. The rubber ring group 3 comprises a connecting ring 32, the length of the connecting ring 32 along the length direction of the channel 211 is equal to the thickness of the limiting block 212, the cross section of the connecting ring 32 is circular, and the outer peripheral surface of the connecting ring 32 is abutted to the inner peripheral surface of the limiting block 212.

The one end body coupling of clamping ring 32 seals up 33, and the cross section of sealed pad 33 is circular, seals up 33 and the coaxial setting of clamping ring 32, and sealed pad 33 pegs graft with standing groove 214, and the side that sealed pad 33 is close to clamping ring 32 and the tank bottom butt of standing groove 214, and the thickness of sealed pad 33 is greater than the degree of depth of standing groove 214, and the side part protrusion that sealed pad 33 kept away from clamping ring 32 keeps away from the side setting that water pipe 1 was kept away from in connecting block 21.

One end of the connecting ring 32, which is far away from the sealing gasket 33, is integrally connected with a positioning ring 34, the cross section of the positioning ring 34 is circular, the positioning ring 34 and the connecting ring 32 are coaxially arranged, and the outer peripheral surface of the positioning ring 34 is abutted against the inner peripheral surface of the channel 211. The side surface of the positioning ring 34 close to the connecting ring 32 abuts against the limiting block 212. The positioning ring 34 is characterized in that a circular groove 31 penetrates through the side face of the sealing gasket 33, the circular groove 31 penetrates through the positioning ring 34, the connecting ring 32 and the sealing gasket 33, and the circular groove 31 and the connecting ring 32 are coaxially arranged.

Two fixing blocks 215 are protruded outwards on the outer peripheral surface of the connecting block 21, the two fixing blocks 215 are respectively arranged on two sides of the axis of the connecting block 21, the side surface, away from the outer peripheral surface of the connecting block 21, of each fixing block 215 and the side surface, away from the outer peripheral surface of the connecting block 21, of each connecting block 21 are arranged in a coplanar mode, a straight hole 216 penetrates through each fixing block 215 in the direction perpendicular to the length direction of the connecting block 21, and the cross section of each straight hole. When two connecting blocks 21 of flange unit 2 mutually support, two connecting blocks 21 are butt joint each other, and the straight hole 216 of the fixed block 215 of two connecting blocks 21 is just right to set up each other, and the bolt link up the straight hole 216 of two fixed blocks 215, and the screw passes through the fixed block 215 of two connecting blocks 21 of nut clamp in order to connect two fixed connecting blocks 21.

The outer peripheral face of connecting block 21 is inwards opened and is had two butt holes 217 that are linked together with the passageway 211 of connecting block 21, and the contained angle of the length direction of two butt holes 217 is 45 degrees, and the contained angle of the length direction of butt hole 217 and the side of another connecting block 21 of connecting block 21 towards flange unit 2 is 22.5 degrees, and the length direction of butt hole 217 just sets up with the tank bottom of annular groove 11, and the width of annular groove 11 along passageway 211 length direction is unanimous with the diameter of butt hole 217.

The abutting part 4 of the fixed connecting block 21 and the water pipe 1 is installed in the abutting hole 217, the abutting part 4 comprises an abutting bolt 41, one end of the abutting bolt 41, far away from a nut of the abutting bolt 41, is fixedly connected with a positioning block 411, the abutting bolt 41 is in threaded connection with the abutting hole 217, when the positioning block 411 abuts against the groove bottoms of the annular grooves 11 through the abutting bolt 41, the axis of the water pipe 1 is coaxially arranged with the axis of the channel 211, one end of the water pipe 1, close to the limiting block 212, abuts against the positioning ring 34, and the diameter of the inner circumferential surface of the water pipe 1 is larger than that of the inner circumferential surface of the connecting ring 32.

A plurality of fasteners 5 for connecting and fixing the two sets of flange units 2 are installed between the two sets of flange units 2 of the two water pipes 1, through holes 218 penetrate through the end surfaces of the connecting blocks 21 in the direction parallel to the length direction of the channel 211, the through holes 218 are located between the outer circumferential surfaces of the connecting blocks 21 and the outer circumferential surfaces of the elongated blocks 213, and the length direction of the connecting line of the through holes 218 and the axis of the channel 211 is perpendicular to the connecting blocks 21 and is arranged toward the side surface of the other connecting block 21 of the flange units 2.

The fastening member 5 includes locking bolts 51, when the through holes 218 of the two flange units 2 of the adjacent water pipes 1 are oppositely arranged, the locking bolts 51 penetrate through the through holes 218 of the two sets of flange units 2, and the locking bolts 51 clamp the two sets of flange units 2 through the locking bolts 51 and nuts.

The working conditions and principles of the embodiment are as follows:

when the water pipe 1 with the annular grooves 11 needs to be connected, firstly, the connecting ring 32 of the rubber ring group 3 is matched and inserted with the limiting block 212 of one connecting block 21, so that the sealing gasket 33 is inserted with the placing groove 214, the positioning ring 34 is positioned in the channel 211, the side surface of the positioning ring 34 close to the connecting ring 32 is abutted with the limiting block 212, and the outer peripheral surface of the positioning ring 34 is abutted with the inner peripheral surface of the channel 211.

Then, the limiting block 212 of the other connecting block 21 is matched with the connecting ring 32 of the rubber ring group 3 in an inserting manner, so that the side surfaces of the two connecting blocks 21 far away from the outer peripheral surface are mutually abutted, meanwhile, the fixing blocks 215 of the two connecting blocks 21 are mutually abutted, and the straight holes 216 of the two fixing blocks 215 are mutually and oppositely arranged. Then, the straight holes 216 of the fixing blocks 215 of the two connection blocks 21 are penetrated by bolts and then are threadedly linked with the bolts by nuts so that the nuts and the nuts of the bolts simultaneously clamp the two connection blocks 21. So that two connecting blocks 21 constitute the flange unit 2 and two other connecting blocks 21 are operated in sequence to constitute the flange unit 2.

And then, the end of the water pipe 1 with the annular groove 11 is inserted into the channel 211 of the flange unit 2, so that the abutting hole of the connecting block 21 is arranged opposite to the annular groove 11, and then the abutting bolt 41 is in threaded connection with the abutting hole 217, so that the end surface of the water pipe 1 and the positioning ring 34 are abutted against each other, and meanwhile, the positioning block 411 of the abutting bolt 41 and the groove bottom surface of the annular groove 11 are abutted against each other, and meanwhile, the distance between the abutting bolt 41 and the outer peripheral surface of the connecting block 21 is consistent, so that the axis of the water pipe 1 and the axis of the circular groove 31 are coaxially arranged.

Operate in proper order then, connect another flange unit 2 with another water pipe 1 through the piece 4 that supports and cooperate, then with the coaxial setting of the axis of two water pipes 1, make the mutual butt of connecting block 21 of two flange units 2, make the through-hole 218 of two flange units 2 just to setting up each other simultaneously, then link up the through-hole 218 of two relative settings of flange unit 2 with lock bolt 51 simultaneously in, then through nut and lock bolt 51 threaded connection, and then make lock bolt 51's nut and nut press from both sides two flange units 2 tightly, and then make the sealed pad 33 of two flange units 2 support tightly each other and along deformation all around.

From this, form an organic whole structure through two sets of flange units 2 in order to connect two water pipes 1, utilize rubber ring group 3 sealed water pipe 1 and the clearance between the flange unit 2, be favorable to reducing the condition that appears leaking or seeping water between two water pipes 1.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A water supply and drainage pipeline connecting structure is characterized in that: the water pipe joint comprises two water pipes (1), a flange unit (2) is inserted into the end part of each water pipe (1), and a plurality of abutting pieces (4) for fixing the flange units (2) are arranged between the flange units (2) and the water pipes (1); the flange unit (2) comprises two connecting blocks (21) which are connected with each other, a channel (211) is communicated with the connecting blocks (21), the channel (211) of the two connecting blocks (21) which are connected with each other is communicated with each other, the end part of the water pipe (1) is positioned in the channel (211) of the flange unit (2), a limiting block (212) is outwards protruded at one end of the channel (211) of the connecting blocks (21) far away from the water pipe (1), the limiting block (212) is embedded and matched with a rubber ring group (3), the rubber ring group (3) is used for circumferentially limiting the limiting block (212), a circular groove (31) communicated with the water pipe (1) is communicated with the rubber ring group (3) in a penetrating manner, the end surface of the water pipe (1) is abutted against the rubber ring group (3), and the rubber ring group (3) is protruded out of the connecting blocks (21) and is arranged far away from the end surface of the water pipe (1), and a fastener (5) for connecting and fixing the two flange units (2) is arranged between the two flange units (2).

2. The water supply and drainage pipeline connecting structure as claimed in claim 1, wherein: the outer peripheral surface of the water pipe (1) is inwards provided with a ring groove (11), the outer peripheral surface of the connecting block (21) is provided with a plurality of abutting holes (217) communicated with the channel (211), and when the water pipe (1) is connected and matched with the flange unit (2), the abutting holes (217) are arranged opposite to the groove bottom of the ring groove (11); the abutting piece (4) comprises an abutting bolt (41), the abutting bolt (41) is in threaded connection with the abutting hole (217), the abutting bolt (41) is close to one end of the channel (211) and is fixedly connected with a positioning block (411), when the water pipe (1) is connected and matched with the flange unit (2), the positioning block (411) is connected with the groove bottom of the ring groove (11) through the abutting bolt (41) and is abutted against each other.

3. The water supply and drainage pipeline connecting structure as claimed in claim 1, wherein: the outer peripheral surface of the connecting block (21) is provided with fixing blocks (215) in a protruding mode, when the two connecting blocks (21) are connected with each other, the fixing blocks (215) are abutted to the fixing blocks (215) of the other connecting block (21), and the two mutually abutted fixing blocks (215) are connected and fixed through bolts.

4. The water supply and drainage pipeline connecting structure as claimed in claim 1, wherein: connecting block (21) are along being on a parallel with through-hole (218) have been link up to water pipe (1) length direction's terminal surface, fastener (5) are including locking bolt (51), and are adjacent through-hole (218) of two flange units (2) of water pipe (1) are just to setting up each other, locking bolt (51) link up two sets ofly through-hole (218) setting of flange unit (2), locking bolt (51) are through the nut clamp two sets of flange unit (2).

5. The water supply and drainage pipeline connecting structure as claimed in claim 1, wherein: a placing groove (214) is formed in the end face, far away from the water pipe (1), of the connecting block (21), the rubber ring group (3) comprises a sealing gasket (33), the sealing gasket (33) is in plug fit with the placing groove (214), and the side face, far away from the connecting block (21), of the sealing gasket (33) protrudes out of the end face, far away from the water pipe (1), of the connecting block (21); the sealing gasket (33) is integrally connected with a connecting ring (32), and the outer peripheral surface of the connecting ring (32) is abutted against the inner peripheral surface of the limiting block (212) far away from the connecting block (21); keep away from coupling ring (32) the one end an organic whole of sealed pad (33) is connected with position circle (34), position circle (34) are located in passageway (211), circular slot (31) link up sealed pad (33), coupling ring (32) and position circle (34) set up, the mouth of pipe of water pipe (1) with circular slot (31) are just to setting up, just water pipe (1) and affiliated position circle (34) butt.

6. The water supply and drainage pipeline connecting structure as claimed in claim 1, wherein: the fasteners (5) of the flange unit (2) are distributed around the axis of the flange unit (2) at equal angles.

7. The water supply and drainage pipeline connecting structure as claimed in claim 1, wherein: the plurality of abutting pieces (4) are distributed at equal angles around the axis of the flange unit (2).

8. The water supply and drainage pipeline connecting structure as claimed in claim 1, wherein: the side surface of the connecting block (21) far away from the other connecting block (21) of the flange unit (2) is integrally connected with an extension block (213).