CN220186196U - Quick maintenance connecting device for inner drain pipe of building - Google Patents

Abstract

The utility model discloses a rapid maintenance connection device for a drainage pipe in a building, which comprises a lower connecting pipe and a joint, and is characterized in that: a sliding cylinder is sleeved outside the lower connecting pipe; the lower connecting pipe consists of a lower connecting pipe inner pipe and a lower connecting pipe outer pipe, and the upper end of the lower connecting pipe inner pipe is fixedly connected with the upper end of the lower connecting pipe outer pipe; the sliding cylinder consists of a sliding cylinder outer pipe and a sliding cylinder inner pipe, and the lower end of the sliding cylinder outer pipe is fixedly connected with the lower end of the sliding cylinder inner pipe; the lower connecting pipe outer pipe is inserted into an inner ring groove of the sliding cylinder and is fixed by PVC edge sealing adhesive; the side wall of the bottom of the inner cavity of the connector is fixedly provided with a connector baffle ring, the peripheral wall of the connector is internally provided with a plug-in ring groove matched with the outer tube of the sliding cylinder, and the upper end part of the outer tube of the sliding cylinder is inserted into the plug-in ring groove of the connector and is fixed by PVC edge sealing adhesive. The utility model has convenient maintenance and installation, saves time and labor, does not generate the phenomena of water seepage and smell leakage, and reduces the maintenance cost of the drain pipe.

Description

Quick maintenance connecting device for inner drain pipe of building

Technical Field

The utility model relates to an improvement of a maintenance device for a PVC drain pipe in a building, belongs to the technical field of building drainage, and in particular relates to a rapid maintenance connection device for the drain pipe in the building.

Background

In the kitchen, balcony and the washing room of every layer of house of building, all can install the PVC drain pipe, the PVC drain pipe has four kinds of specifications of external diameter 50 mm, 75 mm, 110 mm and 160 mm, and the installation of drain pipe all adopts the pipe fitting of PVC material, and through brushing the PVC glue in the junction of pipe fitting and carry out bonding fixed, the PVC glued bond length of the PVC drain pipe of different pipe diameters is different to guarantee that bonding strength is standard, is unable dismantlement after the installation is accomplished. If the PVC drain pipe is damaged, maintenance is needed, a drain pipe with the pipe diameter of 110 mm is maintained by adopting a drain pipe connecting device shown in fig. 6, the drain pipe connecting device consists of an upper cover 8, an outer cylinder 9, a sealing ring 10 and a pressing ring 11, the inner diameter of the lower part of the outer cylinder 9 is matched with the outer diameter of the drain pipe, an inserting baffle ring is fixedly arranged on the inner wall of the lower part of the outer cylinder 9, the width of the inserting baffle ring is generally 1-2 mm, the distance from the inserting baffle ring to the lower end of the outer cylinder 9 is the PVC adhesive bonding length, the PVC adhesive bonding length of the drain pipe with the pipe diameter of 110 mm is generally 45 mm, a sealing ring 10 and a pressing ring 11 are arranged in the upper cavity of the outer cylinder 9, the upper outer wall of the outer cylinder 9 is provided with an upper cover 8 through threaded connection, a central hole matched with the outer diameter of the drain pipe is fixedly arranged at the central hole of the inner cavity of the upper cover 8, and the annular protrusion 81 and the annular protrusion 11 is positioned between the annular protrusion 81 and the sealing ring 10; the construction method for maintaining the drain pipe in the building by adopting the drain pipe connecting device comprises the following steps: A. firstly, cutting the upper and lower parts of the broken part of the drain pipe to obtain an upper drain pipe 2 and a lower drain pipe 1, wherein the distance between the upper drain pipe 2 and the lower drain pipe 1 is larger than the sum of the height of a drain pipe connecting device and the installation depth of a direct 3; as shown in fig. 7, the middle part of the inner wall of the direct 3 is fixedly provided with a direct baffle ring 31, the width of the direct baffle ring 31 is generally 1-2 mm, the distance from the direct baffle ring 31 to the two ends of the direct 3 is the length of PVC adhesive, namely the installation depth of the direct 3 is the length of PVC adhesive, and the length of PVC adhesive is 45 mm for the direct 3 with the inner diameter of 110 mm; B. then a section of straight pipe 12 used as a connecting pipe is cut from the new drain pipe, and the upper cover 8, the outer cylinder 9, the sealing ring 10 and the compression ring 11 are sleeved on the straight pipe 12 in sequence; C. the outer wall of the pipe orifice of the upper end drain pipe 2 and the inner wall of the upper opening of the direct 3 are respectively coated with PVC glue, and the upper opening of the direct 3 is arranged on the pipe orifice of the upper end drain pipe 2, so that the lower port of the upper end drain pipe 2 is propped against the direct baffle ring 31 of the direct 3 along the edge, and the insertion depth of the upper end drain pipe 2 is the length of the PVC glue; D. putting the combination of the drain pipe connecting device and the straight pipe 12 between the drain pipe 1 at the lower end and the straight pipe 3 to see whether the length of the straight pipe 12 is proper or not, and if not, trimming in time; E. the outer wall of the pipe orifice of the lower-end drain pipe 1 and the inner wall of the lower end of the outer barrel 9 are coated with PVC glue, and the pipe orifice of the lower-end drain pipe 1 is inserted into the lower port of the outer barrel 9, so that the upper port of the lower-end drain pipe 1 is propped against the inserted baffle ring of the inner wall of the outer barrel 9 along the edge, and the insertion depth of the lower-end drain pipe 1 is the length of the PVC glue; F. the inner wall of the lower port of the straight pipe 12 and the outer wall of the upper port of the straight pipe 12 are coated with PVC glue quickly, the upper end of the straight pipe 12 is inserted into the lower port of the straight pipe 3 for bonding and fixing, and the depth of the straight pipe 12 inserted into the straight pipe 3 is the length of the PVC glue; G. the upper cover 8 is rotated, so that the upper cover 8 is fixedly connected with the upper end of the outer cylinder 9, and meanwhile, the annular bulge 81 pushes the pressing ring 11 to press the sealing ring 10 downwards, and the sealing ring 10 is fixedly sealed between the inner wall of the outer cylinder 9 and the outer wall of the straight pipe 12, so that water seepage and smell leakage are prevented. The disadvantage of this drain pipe connection is that: the sealing ring is easy to age, and water seepage and smell leakage can occur; a new section of drain pipe is needed, and the maintenance cost is high; the maintenance process is complex, time and labor are wasted, the labor intensity is high, and the maintenance efficiency is low.

Disclosure of Invention

The utility model aims to provide the rapid maintenance connecting device for the drainage pipe in the building, which has the advantages of simple structure, convenient maintenance and installation, no water seepage and smell leakage, and reduced maintenance cost of the drainage pipe.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: this quick maintenance connecting device of drain pipe in building, including taking over and joint down, its characterized in that: the outer part of the lower connecting pipe is sleeved with a sliding cylinder; the lower connecting pipe consists of a lower connecting pipe inner pipe and a lower connecting pipe outer pipe, the lower connecting pipe outer pipe is sleeved on the outer side of the lower connecting pipe inner pipe, the upper end of the lower connecting pipe inner pipe is fixedly connected with the upper end of the lower connecting pipe outer pipe, an annular cavity between the lower connecting pipe inner pipe and the lower connecting pipe outer pipe is an outer annular groove, and the outer diameter of the lower connecting pipe inner pipe is the same as the outer diameter of the drain pipe; the sliding cylinder consists of a sliding cylinder outer pipe and a sliding cylinder inner pipe, the sliding cylinder outer pipe is sleeved on the outer side of the sliding cylinder inner pipe, the lower end of the sliding cylinder outer pipe is fixedly connected with the lower end of the sliding cylinder inner pipe, an annular cavity between the sliding cylinder outer pipe and the sliding cylinder inner pipe is an inner annular groove, the inner diameter of the sliding cylinder inner pipe is the same as the outer diameter of the lower connecting pipe inner pipe, and the sliding cylinder inner pipe is sleeved on the outer wall of the lower connecting pipe inner pipe in a sliding manner; the lower connecting pipe outer pipe is inserted into the inner annular groove and fixed by PVC edge sealing adhesive, the sliding cylinder inner pipe is inserted into the outer annular groove, and the depth of the inner annular groove is the same as that of the outer annular groove, and the depth of the inner annular groove is the bonding length of the PVC edge sealing adhesive; the utility model discloses a PVC sealing glue joint structure, including the inner chamber bottom lateral wall of joint, the inner chamber of joint that is located joint and keeps off the ring on the fixed joint that is equipped with of inner chamber bottom lateral wall, the joint inner chamber that is located joint and keeps off ring top is that the upper end drain pipe inserts the chamber, the diameter that the upper end drain pipe inserted the chamber is the same with the external diameter of drain pipe, the degree of depth that the upper end drain pipe inserted the chamber is not less than the PVC gluing length of drain pipe, the perisporium of joint in be equipped with the grafting annular of smooth section of thick bamboo outer tube looks adaptation, the upper end of smooth section of thick bamboo outer tube inserts in the grafting annular of joint to glue the bonding through PVC banding is fixed, the degree of depth of grafting annular be PVC banding gluing length.

The sliding tube is characterized in that a top ring is arranged in the outer tube cavity of the sliding tube, the top ring is positioned between the lower connecting tube and the connector, the upper port edge of the top ring is contacted with the lower port edge of the connector, the lower port edge of the top ring is contacted with the upper port edge of the lower connecting tube, and the length of the top ring is the length of PVC adhesive of the drain tube.

The length of the sliding cylinder is twice the bonding length of the PVC edge sealing adhesive and the sum of the thickness of the bottom plate of the inner ring groove, the thickness of the bottom plate of the outer ring groove and the length of the top ring; the length of the lower connecting pipe is the sum of the length of the sliding cylinder and the length of the PVC adhesive of the drain pipe; the length of the joint is longer than the bonding length of the PVC edge sealing adhesive.

The lower connecting pipe, the sliding cylinder, the top ring and the joint are all made of PVC materials by one-step molding.

The utility model has the beneficial effects that: simple structure, easy maintenance simple to operate, labour saving and time saving can not take place the phenomenon that infiltration and smell revealed, has reduced the cost of maintenance of drain pipe, has reduced intensity of labour, has improved maintenance efficiency, long service life.

Drawings

FIG. 1 is a schematic cross-sectional view of the structure of the present utility model in a use state;

FIG. 2 is an enlarged schematic cross-sectional view of the joint of the present utility model;

FIG. 3 is an enlarged schematic view of a cross-sectional structure of the top ring of the present utility model;

FIG. 4 is an enlarged schematic view in cross-section of the lower adapter of the present utility model;

FIG. 5 is an enlarged schematic cross-sectional view of the slide of the present utility model;

FIG. 6 is a schematic sectional view showing a structure of a drain pipe connection device according to the prior art in a use state;

fig. 7 is an enlarged schematic cross-sectional view of a direct structure of the prior art.

In the figure: 1. a lower drain pipe; 2. an upper drain pipe; 3. directly; 31. a direct baffle ring; 4. a lower connecting pipe; 41. a lower connecting pipe inner pipe; 42. a lower connecting pipe outer pipe; 43. an outer ring groove; 5. a slide cylinder; 51. an outer tube of the slide cylinder; 52. a slide inner tube; 53. an inner ring groove; 6. a top ring; 7. a joint; 71. a plug ring groove; 72. a joint baffle ring; 73. the upper end drain pipe is inserted into the cavity; 8. an upper cover; 81. an annular protrusion; 9. an outer cylinder; 10. a seal ring; 11. a compression ring; 12. a straight pipe.

Detailed Description

The utility model is manufactured with reference to fig. 1, 2, 3, 4 and 5 and is used for maintaining the PVC drain pipe in a building.

This quick maintenance connecting device of drain pipe in building, including taking over 4 and joint 7 down, its characterized in that: the outer part of the lower connecting pipe 4 is sleeved with a sliding cylinder 5; the lower connecting pipe 4 is composed of a lower connecting pipe inner pipe 41 and a lower connecting pipe outer pipe 42, the lower connecting pipe outer pipe 42 is sleeved outside the lower connecting pipe inner pipe 41, the upper end of the lower connecting pipe inner pipe 41 is fixedly connected with the upper end of the lower connecting pipe outer pipe 42, an annular cavity between the lower connecting pipe inner pipe 41 and the lower connecting pipe outer pipe 42 is an outer annular groove 43, and the outer diameter of the lower connecting pipe inner pipe 41 is the same as the outer diameter of the drain pipe; the sliding cylinder 5 is composed of a sliding cylinder outer pipe 51 and a sliding cylinder inner pipe 52, the sliding cylinder outer pipe 51 is sleeved on the outer side of the sliding cylinder inner pipe 52, the lower end of the sliding cylinder outer pipe 51 is fixedly connected with the lower end of the sliding cylinder inner pipe 52, an annular cavity between the sliding cylinder outer pipe 51 and the sliding cylinder inner pipe 52 is an inner annular groove 53, the inner diameter of the sliding cylinder inner pipe 52 is the same as the outer diameter of the lower connecting pipe inner pipe 41, and the sliding cylinder inner pipe 52 is sleeved on the outer wall of the lower connecting pipe inner pipe 41 in a sliding way; the lower connecting pipe outer pipe 42 is inserted into the inner ring groove 53 and fixed by PVC edge sealing adhesive, the sliding cylinder inner pipe 52 is inserted into the outer ring groove 43, and the depth of the inner ring groove 53 and the depth of the outer ring groove 43 are the same and are the bonding length of the PVC edge sealing adhesive; the inner cavity of the joint 7 is provided with a joint baffle ring 72, the inner cavity of the joint 7 above the joint baffle ring 72 is an upper end drain pipe inserting cavity 73, the diameter of the upper end drain pipe inserting cavity 73 is the same as the outer diameter of a drain pipe, the depth of the upper end drain pipe inserting cavity 73 is not smaller than the PVC adhesive bonding length of the drain pipe so as to ensure bonding firmness, when the joint is installed, the upper end drain pipe 2 is inserted into the upper end drain pipe inserting cavity 73 of the joint 7 and props against the joint baffle ring 72, the joint baffle ring 72 plays a role of blocking and limiting, the peripheral wall of the joint 7 is internally provided with an inserting ring groove 71 matched with the outer tube 51 of the sliding tube, the upper end part of the outer tube 51 of the sliding tube is inserted into the inserting ring groove 71 of the joint 7 and is bonded and fixed through PVC edge sealing adhesive, and the depth of the inserting ring groove 71 is the PVC edge sealing adhesive bonding length.

A top ring 6 is arranged in the cavity of the outer tube 51 of the sliding tube, the top ring 6 is positioned between the lower connecting tube 4 and the joint 7, the upper port edge of the top ring 6 is contacted with the lower port edge of the joint 7, the lower port edge of the top ring 6 is contacted with the upper port edge of the lower connecting tube 4, and the length of the top ring 6 is the PVC adhesive length of the drain pipe; because the top ring 6 is propped against the upper end of the lower connecting pipe 4, the lower connecting pipe 4 is ensured not to move in the process of sliding the sliding cylinder 5 along the outer wall of the lower connecting pipe 4, and the upper end of the sliding cylinder 5 is smoothly inserted into the inserting ring groove 71 of the connector 7, so that the installation is quick and reliable.

The length of the sliding cylinder 5 is twice the bonding length of PVC edge sealing glue and the sum of the thickness of the bottom plate of the inner ring groove 53, the thickness of the bottom plate of the outer ring groove 43 and the length of the top ring 6; the length of the lower connecting pipe 4 is the sum of the length of the sliding cylinder 5 and the PVC adhesive length of the drain pipe; the length of the joint 7 is longer than the bonding length of the PVC edge sealing adhesive.

The PVC edge sealing adhesive has the same length as the PVC adhesive, and can be different to meet the bonding strength.

Because the utility model is applied to the PVC drain pipe, the lower connecting pipe 4, the sliding cylinder 5, the top ring 6 and the joint 7 are all made of PVC materials by one-step molding.

The damaged PVC drain pipe is maintained by using the rapid maintenance connecting device for the drain pipe in the building.

The rapid maintenance construction method for the drainage pipe in the building is characterized by comprising the following steps of: the method comprises the following steps:

A. firstly cutting the upper and lower parts of the broken part of the drain pipe to obtain an upper end drain pipe 2 and a lower end drain pipe 1, wherein the interval between the upper end drain pipe 2 and the lower end drain pipe 1 is the sum of the length of a lower connecting pipe 4 and the width of a direct baffle ring 31 of a direct 3, the width of a joint baffle ring 72 of a joint 7 and the length of a top ring 6;

B. a direct 3 matched with the drain pipe is taken for standby, PVC glue is respectively coated on the outer wall of a pipe orifice of the drain pipe 1 at the lower end and the inner wall of a direct 3 cavity below the direct baffle ring 31, and the lower part of the direct 3 is sleeved on the upper port part of the drain pipe 1 at the lower end, and the direct 3 can be fixed at the upper end of the drain pipe 1 at the lower end quickly because the PVC glue is solidified quickly;

C. respectively brushing PVC glue on the outer wall of the pipe orifice of the upper end drain pipe 2 and the inner wall of the upper end drain pipe insertion cavity 73 of the joint 7, sleeving the upper end drain pipe insertion cavity 73 of the joint 7 on the pipe orifice of the upper end drain pipe 2, and installing the joint 7 on the pipe orifice of the upper end drain pipe 2 after the PVC is gelled and fixed;

D. a circle of PVC sealing adhesive is smeared on the opening edge of the inner ring groove 53 of the sliding cylinder 5, and then the sliding cylinder 5 is sleeved on the lower connecting pipe 4, so that the upper end of the sliding cylinder 5 is flush with the upper end of the lower connecting pipe 4, and the installation speed and quality are not affected because the PVC sealing adhesive is solidified slowly;

E. the PVC glue is coated on the inner wall of the direct 3 cavity above the direct baffle ring 31, the PVC glue is coated on the outer wall of the lower end of the lower connecting pipe inner pipe 41 of the lower connecting pipe 4, and the lower end of the lower connecting pipe inner pipe 41 is inserted into the upper port of the direct 3;

F. smearing a circle of PVC edge sealing adhesive on the edge of the insertion ring groove 71 of the joint 7;

G. the top ring 6 is placed between the lower connecting pipe 4 and the joint 7, the sliding cylinder 5 is slid upwards, the upper end of the outer tube 51 of the sliding cylinder is inserted into the insertion ring groove 71 of the joint 7, meanwhile, the outer tube 42 of the lower connecting pipe is inserted into the inner ring groove 53, the inner tube 52 of the sliding cylinder is also inserted into the outer ring groove 43, and after the PVC sealing glue is solidified, the installation can be completed.

The utility model does not need to intercept a new drain pipe in the maintenance and installation process, reduces the maintenance cost, saves time and labor, reduces the labor intensity, does not generate the phenomena of water seepage and odor leakage, improves the maintenance efficiency and quality, and has longer service life.

Example 1:

the maintenance is carried out on a PVC drain pipe with an outer diameter of 50 mm, the length of the matched direct PVC adhesive of 3 is 25 mm, and the width of the direct baffle ring 31 is 1 mm, which is the prior art.

In the utility model, the length of the PVC edge sealing adhesive is 35 mm; the thickness of the bottom plate of the inner ring groove 53 and the thickness of the bottom plate of the outer ring groove 43 are both 5 mm so as to ensure that the bottom plates of the inner ring groove 53 and the bottom plate of the outer ring groove 43 cannot break; the thickness of the bottom plate of the plugging ring groove 71 of the connector 7 is 5 mm, so that the bottom plate of the plugging ring groove 71 is ensured not to be broken; the length of the top ring 6 is the length of PVC adhesive of the drain pipe, namely 25 mm.

The length of the sliding cylinder 5 is the sum of twice the bonding length of PVC edge sealing glue and the thickness of the bottom plate of the inner ring groove 53, the thickness of the bottom plate of the outer ring groove 43 and the length of the top ring 6, namely 105 mm; the length of the lower connecting pipe 4 is the sum of the length of the sliding cylinder 5 and the PVC adhesive length of the drain pipe, namely 130 mm; the length of the joint 7 is the sum of the bonding length of the PVC edge sealing adhesive and the thickness of the bottom plate of the plug ring groove 71, namely 40 mm, the width of the joint baffle ring 72 of the joint 7 is 2 mm, and the depth of the upper drain pipe inserting cavity 73 is 38 mm; the length of the joint 7 is larger than the bonding length of PVC edge sealing glue, and the depth of the upper drain pipe inserted into the cavity 73 is not smaller than the bonding length of PVC glue, so that the bonding strength requirement is met.

When cutting the upper and lower parts of the broken part of the drain pipe, the interval between the upper end drain pipe 2 and the lower end drain pipe 1 is the sum of the length of the lower connecting pipe 4 and the width of the direct baffle ring 31 of the direct 3, the width of the joint baffle ring 72 of the joint 7 and the length of the top ring 6, namely 158 mm; and then the quick maintenance construction method for the drainage pipe in the building is adopted for installation.

Example 2:

the maintenance is carried out on a PVC drain pipe with the outer diameter of 75 mm, the length of the matched direct PVC adhesive of 3 is 40 mm, and the width of the direct baffle ring 31 is 1 mm, which is the prior art.

In the utility model, the length of the PVC edge sealing adhesive is 35 mm; the thickness of the bottom plate of the inner ring groove 53 and the thickness of the bottom plate of the outer ring groove 43 are both 5 mm so as to ensure that the bottom plates of the inner ring groove 53 and the bottom plate of the outer ring groove 43 cannot break; the length of the top ring 6 is the length of PVC adhesive of the drain pipe, namely 40 mm.

The length of the sliding cylinder 5 is the sum of twice the bonding length of PVC edge sealing glue and the thickness of the bottom plate of the inner ring groove 53, the thickness of the bottom plate of the outer ring groove 43 and the length of the top ring 6, namely 120 mm; the length of the lower connecting pipe 4 is the sum of the length of the sliding cylinder 5 and the PVC adhesive length of the drain pipe, namely 160 mm; the length of the joint 7 is the sum of the PVC adhesive length of the drain pipe and the width of the joint stop ring 72 of the joint 7, wherein the width of the joint stop ring 72 of the joint 7 is 2 mm, namely the length of the joint is 42 mm, and the manufacturing cost of the joint 7 is comprehensively considered at the moment; the length of the joint 7 is larger than the bonding length of PVC edge sealing glue, and the depth of the upper drain pipe inserted into the cavity 73 is not smaller than the bonding length of PVC glue, so that the bonding strength requirement is met.

When cutting the upper and lower parts of the broken part of the drain pipe, the interval between the upper end drain pipe 2 and the lower end drain pipe 1 is the sum of the length of the lower connecting pipe 4 and the width of the direct baffle ring 31 of the direct 3, the width of the joint baffle ring 72 of the joint 7 and the length of the top ring 6, namely 203 mm; and then the quick maintenance construction method for the drainage pipe in the building is adopted for installation.

Example 3:

the maintenance is carried out on a PVC drain pipe with an outer diameter of 110 mm, the length of the matched direct PVC adhesive of 3 is 45 mm, and the width of the direct baffle ring 31 is 2 mm, which is the prior art.

In the utility model, the length of the PVC edge sealing adhesive is 35 mm; the thickness of the bottom plate of the inner ring groove 53 and the thickness of the bottom plate of the outer ring groove 43 are both 5 mm so as to ensure that the bottom plates of the inner ring groove 53 and the bottom plate of the outer ring groove 43 cannot break; the length of the top ring 6 is the length of PVC adhesive of the drain pipe, namely 45 mm.

The length of the sliding cylinder 5 is the sum of twice the bonding length of PVC edge sealing glue and the thickness of the bottom plate of the inner ring groove 53, the thickness of the bottom plate of the outer ring groove 43 and the length of the top ring 6, namely 125 mm; the length of the lower connecting pipe 4 is the sum of the length of the sliding cylinder 5 and the PVC adhesive length of the drain pipe, namely 170 mm; the length of the joint 7 is the sum of the PVC adhesive length of the drain pipe and the width of the joint stop ring 72 of the joint 7, wherein the width of the joint stop ring 72 of the joint 7 is 2 mm, namely the length of the joint is 47 mm, and the manufacturing cost of the joint 7 is comprehensively considered at the moment; the length of the joint 7 is larger than the bonding length of PVC edge sealing glue, and the depth of the upper drain pipe inserted into the cavity 73 is not smaller than the bonding length of PVC glue, so that the bonding strength requirement is met.

When cutting the upper and lower parts of the broken part of the drain pipe, the interval between the upper end drain pipe 2 and the lower end drain pipe 1 is the sum of the length of the lower connecting pipe 4 and the width of the direct baffle ring 31 of the direct 3, the width of the joint baffle ring 72 of the joint 7 and the length of the top ring 6, namely 219 mm; and then the quick maintenance construction method for the drainage pipe in the building is adopted for installation.

Example 4:

the maintenance is carried out on a PVC drain pipe with an outer diameter of 160 mm, the length of the matched direct PVC adhesive of 3 is 55 mm, and the width of the direct baffle ring 31 is 2 mm, which is the prior art.

In the utility model, the length of the PVC edge sealing adhesive is 55 mm; the thickness of the bottom plate of the inner ring groove 53 and the thickness of the bottom plate of the outer ring groove 43 are both 5 mm so as to ensure that the bottom plates of the inner ring groove 53 and the bottom plate of the outer ring groove 43 cannot break; the thickness of the bottom plate of the plugging ring groove 71 of the connector 7 is 5 mm, so that the bottom plate of the plugging ring groove 71 is ensured not to be broken; the length of the top ring 6 is 55 mm, which is the length of PVC adhesive of the drain pipe.

The length of the sliding cylinder 5 is the sum of twice the bonding length of PVC edge sealing glue and the thickness of the bottom plate of the inner ring groove 53, the thickness of the bottom plate of the outer ring groove 43 and the length of the top ring 6, namely 175 mm; the length of the lower connecting pipe 4 is the sum of the length of the sliding cylinder 5 and the PVC adhesive length of the drain pipe, namely 230 mm; the length of the joint 7 is the sum of the bonding length of PVC edge sealing glue and the thickness of the bottom plate of the plug ring groove 71, namely 60 mm, the width of the joint baffle ring 72 of the joint 7 is 3 mm, and the depth of the upper drain pipe inserted into the cavity 73 is 57 mm; the length of the joint 7 is larger than the bonding length of PVC edge sealing glue, and the depth of the upper drain pipe inserted into the cavity 73 is not smaller than the bonding length of PVC glue, so that the bonding strength requirement is met.

When cutting the upper and lower parts of the broken part of the drain pipe, the interval between the upper end drain pipe 2 and the lower end drain pipe 1 is the sum of the length of the lower connecting pipe 4 and the width of the direct baffle ring 31 of the direct 3, the width of the joint baffle ring 72 of the joint 7 and the length of the top ring 6, namely 290 mm; and then the quick maintenance construction method for the drainage pipe in the building is adopted for installation.

Claims (3)

1. The utility model provides a quick maintenance connecting device of drain pipe in building, includes down takeover (4) and connects (7), its characterized in that: the outer part of the lower connecting pipe (4) is sleeved with a sliding cylinder (5); the lower connecting pipe (4) is composed of a lower connecting pipe inner pipe (41) and a lower connecting pipe outer pipe (42), the lower connecting pipe outer pipe (42) is sleeved outside the lower connecting pipe inner pipe (41), the upper end of the lower connecting pipe inner pipe (41) is fixedly connected with the upper end of the lower connecting pipe outer pipe (42), an annular cavity between the lower connecting pipe inner pipe (41) and the lower connecting pipe outer pipe (42) is an outer annular groove (43), and the outer diameter of the lower connecting pipe inner pipe (41) is the same as the outer diameter of the drain pipe; the sliding cylinder (5) is composed of a sliding cylinder outer pipe (51) and a sliding cylinder inner pipe (52), the sliding cylinder outer pipe (51) is sleeved on the outer side of the sliding cylinder inner pipe (52), the lower end of the sliding cylinder outer pipe (51) is fixedly connected with the lower end of the sliding cylinder inner pipe (52), an annular cavity between the sliding cylinder outer pipe (51) and the sliding cylinder inner pipe (52) is an inner annular groove (53), the inner diameter of the sliding cylinder inner pipe (52) is the same as the outer diameter of the lower connecting pipe inner pipe (41), and the sliding cylinder inner pipe (52) is sleeved on the outer wall of the lower connecting pipe inner pipe (41) in a sliding way; the lower connecting pipe outer pipe (42) is inserted into the inner ring groove (53) and is fixed by PVC edge sealing glue, the sliding cylinder inner pipe (52) is inserted into the outer ring groove (43), and the depth of the inner ring groove (53) and the depth of the outer ring groove (43) are the same, and the depth is the bonding length of the PVC edge sealing glue; the utility model provides a connect fixedly on the inner chamber bottom lateral wall of joint (7) and be equipped with joint baffle ring (72), be located joint baffle ring (72) top connect (7) inner chamber and be upper end drain pipe insert chamber (73), the diameter in upper end drain pipe insert chamber (73) is the same with the external diameter of drain pipe, the degree of depth that upper end drain pipe inserted chamber (73) is not less than the PVC glued length of drain pipe, the perisporium of joint (7) in be equipped with in the perisporium with the grafting annular (71) of smooth section of thick bamboo outer tube (51) looks adaptation, the upper end of smooth section of thick bamboo outer tube (51) inserts in grafting annular (71) of joint (7) to fix through PVC banding glue, the degree of depth of grafting annular (71) be PVC banding glue bonding length.

2. The rapid maintenance connection device for a drain pipe in a building according to claim 1, wherein: the sliding tube outer tube (51) is internally provided with a top ring (6), the top ring (6) is positioned between the lower connecting tube (4) and the joint (7), an upper port edge of the top ring (6) is contacted with a lower port edge of the joint (7), a lower port edge of the top ring (6) is contacted with an upper port edge of the lower connecting tube (4), and the length of the top ring (6) is the PVC adhesive length of the drain pipe.

3. The rapid maintenance connection device for a drain pipe in a building according to claim 2, wherein: the length of the sliding cylinder (5) is twice the bonding length of the PVC edge sealing adhesive and the sum of the thickness of the bottom plate of the inner ring groove (53), the thickness of the bottom plate of the outer ring groove (43) and the length of the top ring (6); the length of the lower connecting pipe (4) is the sum of the length of the sliding cylinder (5) and the length of the PVC adhesive of the drain pipe; the length of the joint (7) is longer than the bonding length of the PVC edge sealing adhesive.