Pipeline connection sealing device for same-layer drainage pipeline system

Abstract

The utility model discloses a pipeline connecting and sealing device for a same-floor drainage pipeline system. The same-floor drainage pipeline system comprises a branch pipe, a straight pipe I, a straight pipe II and a drainage pipe fitting, the connecting and sealing device comprises a locking flange plate and a pipe hoop; the branch pipe, the first straight pipe, the second straight pipe and the drainage pipe fitting are sequentially connected in a sealed mode through the locking flange plate and the pipe hoop and then obliquely arranged from high to low, and drained water is drained into the drainage pipe fitting at the low position from the high position and then drained. Due to the fact that the locking flange plates and the pipe hoops which are made of the same materials as the branch pipes are directly adopted to seal all the pipe fittings, the service life of the sealing device is prolonged, and the use cost is reduced. The sealing device solves the technical problems that a sealing device in a drainage pipeline system is short in service life and high in use cost due to the influence of material characteristics and use environments.

Description

Technical Field

[0001] The present invention relates to the field of drainage systems in construction engineering, and particularly to a pipe connection sealing device for a same-floor drainage pipe system. Background Art

[0002] In existing building drainage projects, the materials of the selected drainage pipes are usually cast iron or plastic. Rubber rings are usually used for sealing the connections between cast iron pipes, and special adhesives are usually used for sealing the connections between plastic pipes. Both of the above two sealing methods have the same problem, that is, the service lives of the sealing parts made of different materials are different, and they are also affected differently when the temperature inside the pipe changes. During construction, the same-floor drainage pipe system is buried in the ground. If there are problems with the sealing parts during future use, it is necessary to damage the ground for repair, which will affect life and increase the use cost. Therefore, it is necessary to solve the above existing technical problems. Summary of the Invention

[0003] The present invention provides a pipe connection sealing device for a same-floor drainage pipe system, aiming to solve the technical problems that the sealing device in the drainage pipe system has a short service life and high use cost due to the influence of material characteristics and use environment.

[0004] The technical solution of the present invention is realized as follows:

[0005] A pipe connection sealing device for a same-floor drainage pipe system, characterized in that:

[0006] The same-floor drainage pipe system includes a branch pipe, a first straight pipe, a second straight pipe, and a drainage fitting; the connection sealing device includes a locking flange and a pipe clamp; the branch pipe, the first straight pipe, the second straight pipe, and the drainage fitting are sequentially and hermetically connected through the locking flange, the pipe clamp, and the socket and are arranged obliquely from high to low, so that the drainage is discharged into the drainage fitting at a lower place after flowing from a higher place;

[0007] The branch pipe 3 is located on the main pipe, and the branch pipe 3 is hermetically connected to the first straight pipe 1 through the locking flange 2; a spherical annular protrusion 101 with a circular cross-section extending outward from the pipe wall is provided at one end of the first straight pipe 1; the locking flange 2 is an annular sleeve sleeved on the first straight pipe, and a fan-shaped annular groove one 201 corresponding to the spherical annular protrusion is provided on its inner side wall; a branch pipe flange is integrally connected to the mouth of the branch pipe 3, and a fan-shaped annular groove two 301 corresponding to the spherical annular protrusion is provided at its bottom; the branch pipe flange and the locking flange 2 are fitted and engaged with the spherical annular protrusion from two axial sides and are fixedly connected by bolts;

[0008] The spherical annular protrusion is arranged to be upwardly inclined towards the branch pipe flange, and its bottom is axially tangent to the inner wall of the straight pipe 1. After the fan-shaped annular groove 2 of the branch pipe flange is fitted with the spherical annular protrusion from the bottom surface to the upper surface, the inner wall of the branch pipe 3 is seamlessly connected to the inner wall of the straight pipe 1;

[0009] The other end of the straight pipe 1 is connected to the straight pipe 5 through a pipe clamp. The pipe clamp 4 is in the shape of a sleeve, and both ends are provided with socket ends corresponding to the diameters of the straight pipe 1 and the straight pipe 5. An annular protrusion for sealed connection is provided inside the socket end; the straight pipe 1 and the straight pipe 5 are inserted into the pipe clamp 4 and their inner walls are seamlessly connected; the annular protrusion presses against the outer wall of the straight pipe 1 for sealed connection, and the straight pipe 1 and the straight pipe 5 press against the socket end for sealed connection;

[0010] A socket end corresponding to the diameter of the straight pipe 5 is provided on the branch pipe of the drainage pipe fitting for insertion connection;

[0011] The locking flange 2, the straight pipe 1, the pipe clamp 4, the straight pipe 5, the drainage pipe fitting 6 and the branch pipe 3 are made of the same material.

[0012] In the pipe connection and sealing device for the same-floor drainage pipe system, a plurality of through holes for connection are distributed along the circumference on the disk surface of the locking flange 2. Threaded holes corresponding to the through holes of the locking flange are provided on the branch pipe flange, and they are connected by bolts.

[0013] In the pipe connection and sealing device for the same-floor drainage pipe system, the fan-shaped annular groove 1 201 and the fan-shaped annular groove 2 301 do not completely wrap around the outside of the spherical annular protrusion 101, leaving a movable space; a gap is left between the inner side wall of the locking flange 2 and the outer wall of the straight pipe 1; before being completely locked, the connection angle between the straight pipe 1 and the branch pipe 3 is adjusted by rotating the spherical annular protrusion.

[0014] In the pipe connection and sealing device for the same-floor drainage pipe system, the straight pipe 1 and the branch pipe 3 have the same inner diameter, the outer diameter dimension of the straight pipe 1 is matched with the inner diameter of the socket end of the pipe clamp 4, and the other end of the straight pipe 1 is inserted into the socket end of the pipe clamp for sealed connection.

[0015] In the pipe connection and sealing device for the same-floor drainage pipe system, the outer diameter dimension of the straight pipe 5 is matched with the inner diameter of the socket end of the pipe clamp 4. One end of the straight pipe 5 is inserted into the socket end at the other end of the pipe clamp, and the other end of the straight pipe 5 is inserted into the socket end of the drainage pipe fitting for sealed connection with it. An annular protrusion for sealed connection is provided inside the socket end of the drainage pipe fitting.

[0016] The beneficial effects of the present invention:

[0017] The present invention provides a pipe connection and sealing device for a same-floor drainage pipe system. A spherical annular protrusion is provided at the pipe orifice at one end of the first straight pipe. Grooves corresponding to the spherical annular protrusion are provided on the inner walls of the branch pipe flange and the locking flange. The pipe orifice at one end of the first straight pipe is fixedly connected to the branch pipe orifice through the locking flange. The pipe orifice at the other end of the first straight pipe is hermetically connected to the second straight pipe through a pipe coupling with sockets at both ends. The branch pipe inside the drainage pipe fitting is provided with a socket the same as that inside the pipe coupling. The other end of the second straight pipe is inserted into the socket and hermetically connected thereto. The connection and sealing device of the present invention has both connection function and sealing function. The spherical annular protrusion can adjust the installation angle of the first straight pipe, so that the first straight pipe is inclined, facilitating the flow of water from a high place to a low place. Since the locking flange and the pipe coupling made of the same material as the branch pipe are directly used to seal each pipe fitting, the service life of the sealing device is improved, thereby reducing the use cost. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the same-floor drainage pipe system in the present invention,

[0019] Figure 2 is the side view schematic diagram of the interface of two pipe fittings connected by the sealing device in the present invention,

[0020] Figure 3 is Figure 2 the sectional view along the A-A plane of

[0021] Description of the Drawing Reference Numerals

[0022] The first straight pipe 1, the spherical annular protrusion 101, the locking flange 2, the first fan-shaped annular groove 201, the branch pipe 3, the second fan-shaped annular groove 301, the pipe coupling 4, the second straight pipe 5, the drainage pipe fitting 6. Detailed Embodiment

[0023] The specific structure and implementation manner of the present invention will be described in detail below with reference to the drawings.

[0024] Refer to Figure 1 as shown, a pipe connection and sealing device for a same-floor drainage pipe system of the present invention,

[0025] The same-floor drainage pipe system includes a branch pipe, a first straight pipe, a second straight pipe, and a drainage pipe fitting; the connection and sealing device includes a locking flange and a pipe coupling; the branch pipe, the first straight pipe, the second straight pipe, and the drainage pipe fitting are sequentially hermetically connected through the locking flange, the pipe coupling, and the socket and are arranged obliquely from high to low, so that the drainage is discharged into the drainage pipe fitting at a low place after flowing from a high place;

[0026] Refer to Figure 1 as shown, the branch pipe 3 is located on the main pipe fitting, and the branch pipe 3 is hermetically connected to the first straight pipe 1 through the locking flange 2; Refer toFigure 3 As shown, one end of the straight pipe 1 is provided with a spherical annular protrusion 101 with a circular cross-section extending outward from the pipe wall; the locking flange 2 is an annular sleeve sleeved on the straight pipe 1, and a fan-shaped annular groove 201 with a cross-section corresponding to the spherical annular protrusion is provided on its inner side wall; the branch pipe 3 is provided with an integrally connected branch pipe flange at the pipe orifice, and a fan-shaped annular groove 301 with a cross-section corresponding to the spherical annular protrusion is provided at the bottom; the branch pipe flange and the locking flange 2 are fitted and engaged with the spherical annular protrusion from both axial sides and are fixedly connected by bolts;

[0027] The spherical annular protrusion is arranged to be in an upwardly inclined shape towards the branch pipe flange, and its bottom is axially tangent to the inner wall of the straight pipe 1. After the fan-shaped annular groove 301 of the branch pipe flange is fitted with the spherical annular protrusion from the bottom to the top, the inner wall of the branch pipe 3 is seamlessly connected to the inner wall of the straight pipe 1;

[0028] The other end of the straight pipe 1 is connected to the straight pipe 5 through a pipe coupling. The pipe coupling 4 is in a sleeve shape, and sockets corresponding to the diameters of the straight pipe 1 and the straight pipe 5 are provided at both ends. An annular protrusion for sealing connection is provided inside the socket; the straight pipe 1 and the straight pipe 5 are inserted into the pipe coupling 4 and their inner walls are seamlessly connected; the annular protrusion presses against the outer wall of the straight pipe 1 for sealing connection, and the straight pipe 1 and the straight pipe 5 press against the socket for sealing connection;

[0029] A socket corresponding to the diameter of the straight pipe 5 is provided on the branch pipe of the drainage pipe fitting for insertion connection;

[0030] The locking flange 2, the straight pipe 1, the pipe coupling 4, the straight pipe 5, the drainage pipe fitting 6 and the branch pipe 3 are made of the same material.

[0031] For the pipe connection and sealing device for a same-floor drainage pipe system, wherein, as shown in Figure 2 and Figure 3 As shown, a plurality of connected through holes are distributed along the circumference on the disk surface of the locking flange 2, and threaded holes corresponding to the through holes of the locking flange are provided on the branch pipe flange, and they are connected by bolts.

[0032] For the pipe connection and sealing device for a same-floor drainage pipe system, wherein the fan-shaped annular groove 201 and the fan-shaped annular groove 301 do not completely wrap around the outside of the spherical annular protrusion 101, leaving a movable space; a gap is left between the inner side wall of the locking flange 2 and the outer wall of the straight pipe 1; before being completely locked, the connection angle between the straight pipe 1 and the branch pipe 3 is adjusted by rotating the spherical annular protrusion.

[0033] A pipe connection sealing device for a same-floor drainage pipe system, wherein the first straight pipe 1 and the branch pipe 3 have the same inner diameter, the outer diameter of the first straight pipe 1 is matched with the inner diameter of the socket of the pipe clamp 4, and the other end of the first straight pipe is inserted into the socket of the pipe clamp for sealed connection.

[0034] A pipe connection sealing device for a same-floor drainage pipe system, wherein the outer diameter of the second straight pipe 5 is matched with the inner diameter of the socket of the pipe clamp 4, one end of the second straight pipe is inserted into the socket at the other end of the pipe clamp, and the other end of the second straight pipe is inserted into the socket of the drainage pipe fitting for sealed connection with it. There is a ring-shaped protrusion for sealed connection inside the socket of the drainage pipe fitting.

[0035] The following further elaborates on the specific embodiments of the present invention:

[0036] The material of the sealing device in the present invention is cast iron or plastic, and it is applicable to the connection between various pipe fittings in the same-floor drainage pipe system.

[0037] In the present invention, the first straight pipe 1 and the second straight pipe 5 are connected by a pipe clamp 4. Sockets with ring-shaped protrusions inside are provided at both ends of the pipe clamp 4. The inner diameter of the socket with the ring-shaped protrusion reaches the transition fit standard with the outer diameter of the connecting pipe fittings, and the pipe fittings at both ends of the pipe clamp are sealed and connected.

[0038] There is a socket inside the branch pipe on the drainage pipe fitting 6 that is the same as the inside of the pipe clamp 4. The connecting pipe fitting is inserted into this socket for sealed connection. In this same-floor drainage pipe system, the connection method of other pipe fittings except the main pipe fittings is the same as described above.

[0039] As Figure 2 and Figure 3 shown, a plurality of through holes are distributed along the circumference on the disk surface of the locking flange 2, and threaded holes corresponding to the through holes of the locking flange are provided on the branch pipe flange. The locking flange seals and connects the branch pipe and the first straight pipe through bolts.

[0040] As Figure 3 shown, the first fan-shaped annular groove 201 and the second fan-shaped annular groove 301 do not completely wrap around the outside of the spherical annular protrusion 101, leaving a movable space; before complete locking, the connection angle between the two pipe fittings of the first straight pipe 1 and the branch pipe 3 can be adjusted according to the installation requirements by rotating the spherical annular protrusion.

[0041] Before connecting the branch pipe to the first straight pipe, first place the spherical annular protrusion at one end of the first straight pipe to be connected into the fan-shaped annular groove two located at the pipe orifice of the branch pipe. Then place the locking flange outside the spherical annular protrusion and pre-tighten and fix it with bolts. Insert the other end of the first straight pipe into the socket at one end of the pipe coupling. The other end of the pipe coupling is socket-connected to the second straight pipe, and the other end of the second straight pipe is inserted into the socket of the drainage fitting and sealedly connected thereto. Adjust the connection angle between the first straight pipe and the branch pipe according to the installation requirements. After the adjustment is completed, further tighten the bolts, and bury other pipe fittings except the main pipe fitting into the filling layer to ensure the sealed connection of each pipe fitting.

[0042] The working principle of the present invention:

[0043] Before the present invention is completely locked and sealed, the connection angle between the first straight pipe and the branch pipe is adjusted by rotating the spherical annular protrusion, so that the first straight pipe inclines from high to low towards the drainage fitting, and the drainage is discharged after flowing from a high place into the drainage fitting at a low place. After determining the connection angle between the first straight pipe and the branch pipe, the branch pipe flange and the locking flange are fitted and engaged with the spherical annular protrusion on the first straight pipe from both axial sides, and are sealedly connected by tightening the bolts. The machined fan-shaped annular groove one and the fan-shaped annular groove two wrap around the outside of the spherical annular protrusion and achieve a precise fit and sealed connection. The precise fit degree is completed by machining. The pipe coupling is in a sleeve shape, and sockets corresponding to the diameters of the first straight pipe and the second straight pipe are provided at both ends. An annular protrusion for sealed connection is provided inside the socket. The other end of the first straight pipe is sealedly connected to the second straight pipe through the pipe coupling. A socket identical to the pipe coupling is provided on the straight pipe of the drainage fitting, and the other end of the second straight pipe is inserted into the socket of the drainage fitting and sealedly connected.

Claims

1. A pipe connection sealing device for a same-floor drainage pipe system, characterized in that: The drainage pipe system on the same floor includes a branch pipe, a straight pipe 1, a straight pipe 2, and a drainage pipe fitting; the connection sealing device includes a locking flange and a pipe clamp; the branch pipe, the straight pipe 1, the straight pipe 2, and the drainage pipe fitting are sequentially connected through the locking flange, the pipe clamp, and the socket seal and arranged from high to low, so that the drainage is discharged from the high place into the drainage pipe fitting at the low place and then discharged; The branch pipe (3) is located on the main pipe component, and the branch pipe (3) is sealed and connected to the straight pipe (1) through the locking flange (2); the pipe opening at one end connected to the straight pipe (1) is provided with a spherical annular protrusion (101) with a circular cross section extending to the outside of the pipe wall; the locking flange (2) is an annular sleeve sleeved on the straight pipe (1), and a fan-shaped annular groove (201) with a fan-shaped cross section corresponding to the spherical annular protrusion is provided on its inner wall; the branch pipe (3) is provided with an integrally connected branch pipe flange at the pipe opening, and a fan-shaped annular groove (301) with a fan-shaped cross section corresponding to the spherical annular protrusion is provided at its bottom; the branch pipe flange and the locking flange (2) are matched and embedded with the spherical annular protrusion from two axial sides, and are fastened and connected by bolts; The spherical annular protrusion is arranged to be upwardly tilted toward the branch pipe flange, and its bottom is axially tangent to the inner wall of the straight pipe one (1). After the sector-shaped annular groove two of the branch pipe flange is engaged with the spherical annular protrusion from the bottom to the top, the inner wall of the branch pipe (3) is seamlessly connected to the inner wall of the straight pipe one (1); The other end of the straight pipe one (1) is connected to the straight pipe two (5) through a pipe clamp; the pipe clamp (4) is sleeve-shaped, with sockets corresponding to the diameters of the straight pipe one (1) and the straight pipe two (5) at both ends, and an annular protrusion for sealing connection is provided inside the socket; the straight pipe one (1) and the straight pipe two (5) are inserted into the pipe clamp (4) and the inner walls are seamlessly connected; the annular protrusion presses the outer wall of the straight pipe one (1) to form a sealing connection, and the straight pipe one and the straight pipe two press against the socket to form a sealing connection; The branch pipe of the drainage pipe is provided with a socket corresponding to the diameter of the straight pipe (5) for insertion connection; The locking flange (2), the straight pipe one (1), the pipe clamp (4), the straight pipe two (5), the drainage pipe fitting (6) and the branch pipe (3) are made of the same material.

2. A pipe connection sealing device for a same-floor drainage pipe system according to claim 1, characterized in that: The locking flange (2) has a plurality of connecting through holes distributed along the circumference on its surface, and the branch pipe flange is provided with threaded holes corresponding to the through holes of the locking flange, which are connected by bolts.

3. A pipe connection sealing device for a same-floor drainage pipe system according to claim 1, characterized in that: The sector-shaped annular groove 1 (201) and the sector-shaped annular groove 2 (301) are not completely wrapped around the outside of the spherical annular protrusion (101), leaving a movable space; a gap is left between the inner wall of the locking flange (2) and the outer wall of the straight pipe 1 (1); before being completely locked, the connection angle between the straight pipe 1 (1) and the branch pipe (3) is adjusted by rotating the spherical annular protrusion.

4. A pipe connection sealing device for a same-floor drainage pipe system according to claim 1, characterized in that: The straight pipe 1 (1) has the same inner diameter as the branch pipe (3), the outer diameter of the straight pipe 1 (1) matches the inner diameter of the socket of the pipe clamp (4), and the other end of the straight pipe 1 is inserted into the socket of the pipe clamp for sealing connection.

5. A pipe connection sealing device for a same-floor drainage pipe system according to claim 1, characterized in that: The outer diameter of the straight pipe 2 (5) matches the inner diameter of the socket of the pipe clamp (4), one end of the straight pipe 2 is inserted into the socket of the other end of the pipe clamp, and the other end of the straight pipe 2 is inserted into the socket of the drainage pipe fitting and sealedly connected thereto, and an annular protrusion for sealing connection is provided inside the socket of the drainage pipe fitting.

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