A method for laying square corrugated pipes for cable integrated pipe gallery

Abstract

A square corrugated pipe for a cable integrated pipe gallery and a connection method thereof, characterized in that the square corrugated pipe for the cable integrated pipe gallery comprises a hollow rectangular pipe section (10), an annular cylindrical pipe section (20), an annular cylindrical socket (4) and an annular cylindrical plug (5); its connecting parts comprise a sleeve (1), an insert ring (2) and a hydrophilic non-woven fabric (3), an annular cylindrical socket (4), an annular cylindrical plug (5), a clamping ring (6), a water-expandable sealing ring (7), a baffle (8); and the pipe connection methods comprise four types: a socket joint (100) connection method, a double-socket socket connector (200) connection method, an insert ring connector (300) connection method, and an insert ring and clamping ring combined connector (400) connection method.

Description

Technical Field

[0001] The invention relates to a square corrugated pipe and a connection method thereof, and in particular to a square corrugated pipe for a cable integrated pipe gallery and a connection method thereof. Background Art

[0002] Cable integrated pipe corridors are generally set up under the sidewalk, and a work well should be set up at a certain interval to facilitate construction, inspection and maintenance. Cable integrated pipe corridors are conducive to the operation and maintenance of pipelines. If pipes with a circular cross-section are used for laying, they need to be fixed with pipe pillows. There are intervals between pipes, and the space of the pipe corridor cannot be fully utilized. In addition, pipe pillows must be laid before laying, which affects the construction progress. Circular pipes are also prone to Z-shaped displacement during the backfilling of medium and coarse sand. Therefore, the present invention designs a square corrugated pipe for a cable integrated pipe corridor and a variety of connectors including a socket, a plug ring and a clamp ring, which are used to solve the problems of difficult construction, consumables and water leakage in the connection of square corrugated pipes. Summary of the invention

[0003] In order to solve the above-mentioned technical problems, the present invention aims to provide a square corrugated pipe for a cable integrated pipeline corridor and a connection method thereof, which is waterproof, can fully utilize the space and is convenient for construction.

[0004] The technical scheme adopted by the present invention is: a square corrugated pipe for cable integrated pipe gallery and its connection method, characterized in that: the square corrugated pipe is laid flat on the bottom plate of the cable integrated pipe gallery, medium-coarse sand is used to backfill and compact the square corrugations layer by layer from bottom to top, the connected square corrugated pipes and the upper and lower layers of the square corrugated pipes are closely arranged, and the gaps are filled with medium-coarse sand. After the laying is completed, a cover plate is covered, and a warning strip is arranged on the cover plate. The square corrugated pipe for the cable integrated pipe gallery includes a hollow rectangular pipe section (10), an annular cylindrical pipe section (20) , an annular cylindrical socket (4) and an annular cylindrical plug (5), wherein the connecting parts include a sleeve (1), an insert ring (2) and a hydrophilic non-woven fabric (3), an annular cylindrical socket (4), an annular cylindrical plug (5), a clamping ring (6), a water-expandable sealing ring (7), and a baffle (8); the hollow rectangular parallelepiped pipe section (10) and the annular cylindrical pipe section (20) are coaxially connected alternately and are hot-melt connected or hot-melt molded into one body; the annular cylindrical socket (4) and the annular cylindrical plug (5) are respectively located at both ends of the pipeline;

[0005] The invention is also characterized in that: the pipe connection method includes a socket joint (100) connection method, a double-socket socket connector (200)

[0006] There are four types of connection methods: a plug-in type connection member (300) connection method, and a plug-in ring and clamp ring combined connection member (400) connection method;

[0007] When the straight-line laying method is adopted, the pipes are connected with each other by a socket joint (100);

[0008] The two working wells are laid facing each other until the pipelines intersect between the two working wells: if the annular cylindrical socket (4) of the pipeline just meets the annular cylindrical socket (4) of another pipeline, a double-socket socket connector (200) is used for connection; if the annular cylindrical socket (5) just meets the annular cylindrical socket (5) of another pipeline, the annular cylindrical socket (5) is cut off and a plug-in ring connector (300) is used for connection; if the pipelines overlap when they meet, the annular cylindrical socket (4) of one pipeline is retained, the overlapping part of the other pipeline is cut off, and a plug-in ring and clamp ring integrated connector (400) is used for connection;

[0009] The sleeve (1) comprises a socket (11), a limiting ring (12) and a plug hole (13); the socket (11) is located at one end of the sleeve (1); the socket (11) comprises a left frame (112), a right frame (113) and a concave ring (111) formed integrally therewith and sandwiched therebetween; the cross sections of the left frame (112) and the right frame (113) are both square in shape with four inner and outer corners having rounded chamfers; the internal shape of the socket (11) matches the outer frame shape of a square cable protection corrugated tube; the inner side length of the socket (11) is 100-200 mm longer than the outer side length of the square cable protection corrugated tube, so that it can be sleeved outside the square cable protection corrugated tube; the cross section of the concave ring (111) is square in shape with a quasi-circular outer frame and four inner corners having rounded chamfers; in the concave ring (111)

[0010] A plug hole (13) is respectively provided at the lower part of the two inner side surfaces, and each plug hole (13) penetrates the inner and outer surfaces of the concave ring (111):

[0011] The limiting ring (12) is located in the middle of the two sleeves (1) and is integrally formed with the sleeves (1). Its cross section is a square frame with a quasi-circular outer frame and four inner corners with arc chamfers, and the inner side length of the limiting ring (12) is 100-200 mm less than the inner side length of the square cable protection corrugated tube, so that the square corrugated tube inserted from one end stops at the limiting ring (12) and cannot reach the other end of the sleeve (1), and vice versa; a plug hole (13) matching the protruding foot (23) of the plug ring (2) is respectively provided at the lower part of the two side surfaces inside the limiting ring (12), and each plug hole (13) passes through the inner and outer surfaces of the limiting ring (12), so that the arcs (22) of the two plug rings (2) can be tightly sleeved on the outside of the limiting ring (12), and the plug ring (2) is temporarily stored on the limiting ring (12) before being connected to the square corrugated tube;

[0012] The outer contour of the cross section of the insert ring (2) is a square (21) with one side missing, and the inner contour of the cross section of the insert ring (2) is a circular arc (22). A convex foot (23) is provided at each end of the inner edge of the circular arc (22). The inner diameter of the circular arc (22) is the same as the outer diameter of the concave ring (111) and the limiting ring (12), so that the circular arc (22) of the insert ring (2) can be tightly sleeved outside the concave ring (111) or the limiting ring (12). The insert ring (2) can be made of elastic plastic material through injection molding, so that the convex foot (23) can be bent and is not easy to break, so that it can be easily inserted into the insertion hole (13) of the concave ring (111) or the limiting ring (12);

[0013] The hydrophilic non-woven fabric (3) is located at the inner contour between the concave ring (111) and the limiting ring (12) in the socket (11) at both ends of the sleeve, and plays a role in sealing and waterproofing;

[0014] The inner wall of the annular cylindrical socket (4) is provided with a socket groove (41), and the socket groove (41) is in the shape of an annular cylinder.

[0015] Coaxial with the annular cylindrical socket (4);

[0016] The outer wall of the annular cylindrical socket (5) is provided with socket convex grooves (51) and socket concave grooves (52) which are alternately connected. The socket convex grooves (51) and socket concave grooves (52) are annular cylindrical and are coaxial with the annular cylindrical socket body.

[0017] The clamping ring (6) comprises a belt surface (61), a forward fork (62) and an inverted fork (63); the belt surface (61) is an annular truncated cone,

[0018] The forward branches (62) are arranged at a certain distance on the annular outer surface of the belt surface (61), so that the forward branches (62) are evenly arranged on the annular outer surface of the belt surface (61); the reverse branches (63) are arranged at a certain distance on the annular inner surface of the belt surface (61), so that the reverse branches (63) are evenly arranged on the annular inner surface of the belt surface (61);

[0019] The inverted fork (63) includes an end portion (64) and a tail portion (65), and the end portion (64) of each inverted fork (63) is connected to the inner side of the lower bottom surface of the annular truncated cone of the belt surface (61), and the tail portion (65) is radially tilted outward; that is, on one side of the inner surface of the belt surface (61), the tail portion (65) is radially tilted outward; each inverted fork (63) can be an arc-shaped plate or a square plate. If it is an arc-shaped plate, all the inverted forks (63) are surrounded by the contour of a hollow truncated cone with a large lower bottom surface and a small upper bottom surface in the belt surface (61). If it is a square plate, this All the inverted forks (63) are arranged on the inner surface of the belt surface (61) to form a hollow truncated cone-like outline with a large lower bottom surface and a small upper bottom surface; the end (64) of each inverted fork (63) is connected to the lower bottom surface edge of the hollow truncated cone or the hollow truncated cone-like outline formed by the inner surface of the belt surface (61); the tail (65) of each inverted fork (63) is located on the upper bottom surface edge of the hollow truncated cone or the hollow truncated cone-like outline formed by the inner surface of the belt surface (61); and each inverted fork (63) is distributed on the side surface of the hollow truncated cone or the hollow truncated cone-like outline formed by the inner surface of the belt surface (61);

[0020] The fork (62) includes an end portion (64) and a tail portion (65). The end portion (64) of each fork (62) is connected to the outer side of the upper bottom surface of the annular truncated cone of the belt surface (61), and the tail portion (65) is radially tilted outward; that is, on the other side of the outer surface of the belt surface (61), the tail portion (65) is radially tilted outward; each fork (62) can be an arc-shaped plate or a square plate. If it is an arc-shaped plate, all the forks (62) form a hollow truncated cone with a small lower bottom surface and a large upper bottom surface on the outer surface of the belt surface (61). If it is a square plate, In this way, all the forks (62) form a hollow cone-like outline with a small lower bottom surface and a large upper bottom surface on the outer surface of the belt surface (61): the end (64) of each fork (62) is connected to the lower bottom surface edge of the hollow cone or similar hollow cone formed by the outer surface of the belt surface (61), the tail (65) of each fork (62) is located on the upper bottom surface edge of the hollow cone or similar hollow cone formed by the outer surface of the belt surface (61), and each fork (62) is distributed on the side of the hollow cone or similar hollow cone formed by the outer surface of the belt surface (61);

[0021] The forward fork (62) and the reverse fork (63) have the same structure, but the connection direction with the belt surface is opposite;

[0022] The annular inner surface of the belt surface (61) provided with the forward fork (62) is not provided with the reverse fork (63), and the annular outer surface of the belt surface (61) provided with the reverse fork (63) is not provided with the forward fork (62), and the forward fork (62) and the reverse fork (63) are alternately and evenly arranged on the annular inner and outer surfaces of the belt surface (61); that is, if there is no forward fork (62) on the annular outer surface, a reverse fork (63) is provided at a position on the annular inner surface that is back-to-back with this position, and if there is no reverse fork (63) on the annular inner surface, a reverse fork (63) is provided at a position on the annular inner surface that is back-to-back with this position. A forward fork (62) is provided at the position of the annular outer surface; specifically, under normal circumstances, each section of the forward fork (62) and the reverse fork (63) is 1 / 12 of the arc length, that is, the outer surface of the belt surface (61) of the forward fork (62) is provided with a forward fork (62) of 1 / 12 of the arc length every 1 / 12 of the arc length, and the inner surface of the belt surface (61) provided with the reverse fork (63) is provided with a reverse fork (63) of 1 / 12 of the arc length every 1 / 12 of the arc length, and the forward fork (62) and the reverse fork (63) are alternately and evenly arranged on the annular inner and outer surfaces of the belt surface (61);

[0023] The clamping ring (6) is made of elastic plastic material through injection molding;

[0024] The baffle (8) is made of polypropylene material and is formed by injection molding;

[0025] A socket joint (100) comprises an annular cylindrical socket (4), an annular cylindrical spigot (5), a clamping ring (6) and a water-expandable sealing ring (7);

[0026] The annular cylindrical socket (5) is first connected to the water-swellable sealing ring (7) and then connected to the clamping ring (6);

[0027] The water-swellable sealing ring (7) is located in the corresponding socket groove (52) of the annular cylindrical socket (5), and the tail (65) of each inverted fork (63) of the clamping ring (6) is located and connected to the socket groove (52) closer to the end of the water-swellable sealing ring (7);

[0028] An annular cylindrical socket (4) provided at one end of a square corrugated pipe is connected to an annular cylindrical socket (5) provided at one end of another square corrugated pipe via a clamping ring (6) and a water-expandable sealing ring (7); the tail (65) of the reverse fork (63) of the clamping ring (6) is connected to a socket groove (52) on the outer wall of the annular cylindrical socket (5); the tail (65) of the forward fork (62) of the clamping ring (6) is connected to a socket groove (41) of the annular cylindrical socket (4); the water-expandable sealing ring (7) is located in a gap between the socket groove (52) on the outer wall of the annular cylindrical socket (5) and the socket groove (41) on the inner wall of the annular cylindrical socket (4);

[0029] The annular cylindrical socket (5) provided at the other end of a square corrugated pipe is connected to the annular cylindrical socket (4) provided at one end of a third square corrugated pipe, and the annular cylindrical socket (4) at the other end of another square corrugated pipe is connected to the annular cylindrical socket (5) at one end of a fourth square corrugated pipe, and so on, to achieve long-distance pipe connection;

[0030] The double-socket socket connector (200) comprises two annular cylindrical sockets (5), a snap ring (6), a water-expandable sealing ring (7) and a baffle (8); the annular cylindrical sockets (5) are located at both ends of the double-socket socket connector (200), and the baffle (8)

[0031] Located in the middle of the double-socket socket connector (200);

[0032] The annular cylindrical socket (5) is first connected to the water-swellable sealing ring (7) and then connected to the clamping ring (6);

[0033] The water-swellable sealing ring (7) is located in the corresponding socket groove (52) of the annular cylindrical socket (5), and the tail (65) of each inverted fork (63) of the clamping ring (6) is located and connected to the socket groove (52) closer to the end of the water-swellable sealing ring (7);

[0034] An annular cylindrical socket (4) provided at one end of a square-round corrugated pipe is connected to the annular cylindrical socket (5) at one end of a double-socket socket connector (200) via a clamping ring (6) and a water-expandable sealing ring (7).

[0035] The tail (65) of the (63) is connected to the socket groove (52) of the outer wall of the annular cylindrical socket (5), the tail (65) of the fork (62) of the clamping ring (6) is connected to the socket groove (41) of the annular cylindrical socket (4), and the water-swellable sealing ring (7) is located in the gap between the socket groove (52) of the outer wall of the annular cylindrical socket (5) and the socket groove (41) of the inner wall of the annular cylindrical socket (4);

[0036] The annular cylindrical socket (4) provided at one end of the other square-shaped corrugated pipe is connected to the annular cylindrical socket (5) at the other end of the double-socket socket connector via a clamping ring (6) and a water-expandable sealing ring (7), thereby realizing the connection of the two annular cylindrical sockets (4) of the square corrugated pipe;

[0037] The plug-in ring type connector (300) comprises a sleeve (1), two plug-in rings (2) and two hydrophilic non-woven fabrics (3);

[0038] When not connected to the square cable protection corrugated tube, the two plug rings (2) are located side by side on the outer surface of the limiting ring (12) in the middle of the sleeve (1), and the protruding feet (23) at both ends of the arc (22) are respectively inserted into the two insertion holes (13) of the limiting ring (12);

[0039] The outer contours of the two sections of square cable protection corrugated tubes are respectively connected to the inner contours of the sockets (11) at both ends of the sleeve (1), the end of one section of the square cable protection corrugated tube contacts one side of the limiting ring (12), and the end of the other section of the square cable protection corrugated tube contacts the other side of the limiting ring (12), the trough of each section of the square cable protection corrugated tube is respectively located in the concave ring (111) of the socket (11), the arcs (22) of the two plug rings (2) are respectively located on the outer surfaces of the concave ring (111) of the socket (11) at both ends of the sleeve (1), the convex feet (23) at both ends of the arc (22) are respectively inserted into the insertion holes (13) provided on the two opposite lower side surfaces in the concave ring (111), and the convex feet (23) are directly inserted into the bottom end of the trough of the square cable protection corrugated tube;

[0040] The plug-in ring and snap-ring integrated connector (400) comprises a sleeve (1), an plug-in ring (2), a hydrophilic non-woven fabric (3), an annular cylindrical socket (5), a snap-ring (6), and a water-expandable sealing ring (7);

[0041] The sleeve (1) is located at one end of the square cable protection corrugated tube insert ring and the clamp ring integrated connector (400), and the annular cylindrical socket (5) is located at the other end of the square cable protection corrugated tube insert ring and the clamp ring integrated connector (400);

[0042] When not connected to the square cable protection corrugated tube, the insert ring (2) is located on the outer surface of the limiting ring (12) in the middle of the sleeve (1), and the protruding feet (23) at both ends of the arc (22) are respectively inserted into the two insertion holes (13) of the limiting ring (12);

[0043] The sleeve (1) and the annular cylindrical socket (5) are integrally formed by injection molding of polypropylene resin, thereby ensuring the connection strength of the square cable protection corrugated tube and the compressive strength of the connection;

[0044] The annular cylindrical socket (4) of a square corrugated pipe with an annular cylindrical socket (4) retained at one end is connected to the annular cylindrical socket (5) of the plug ring and the annular cylindrical socket integrated connector via a clamping ring (6) and a water-swelling sealing ring (7); the tail (65) of the reverse fork (63) of the clamping ring (6) is connected to the socket groove (52) of the outer wall of the annular cylindrical socket (5); the tail (65) of the forward fork (62) of the clamping ring (6) is connected to the socket groove (41) of the annular cylindrical socket (4); the water-swelling sealing ring (7) is located in the gap between the socket groove (52) of the outer wall of the annular cylindrical socket (5) and the socket groove (41) of the inner wall of the annular cylindrical socket (4);

[0045] The sleeve (1) of the plug-in ring and clamp ring integrated connector is connected to another square corrugated pipe section, one end of the square corrugated pipe section is connected to the inner contour of the socket (11), the end of the square cable protection corrugated pipe section is in contact with the limiting ring (12), the trough of the square cable protection corrugated pipe section is located in the concave ring (111) of the socket (11), the arc (22) of the plug-in ring (2) is located on the outer surface of the concave ring (111) of the socket (11) of the sleeve (1), and the arc (22) ) are respectively inserted into the insertion holes (13) provided on the two opposite lower sides of the concave ring (111), and the convex feet (23) are directly inserted into the bottom end of the trough of the square cable protection corrugated pipe section, so that a square corrugated pipe with an annular cylindrical socket (4) at one end is connected to the square cable protection corrugated pipe section through the sleeve (1), the insert ring (2), the annular cylindrical socket (5), the clamping ring (6), and the water-expandable sealing ring (7).

[0046] The present invention has the following advantages:

[0047] 1. When the straight-line laying method is used, the pipes are connected by a socket joint (100), which has the characteristics of simple and quick construction, the cable protection pipe is not easy to be separated, high connection strength and strong connection sealing;

[0048] 2. Lay the pipes facing each other between the two working wells until the pipes intersect each other between the two working wells: if the annular cylindrical socket (4) of the pipe just meets the annular cylindrical socket (4) of another pipe, a double-socket socket connector (200) is used for connection, which has the characteristics of simple and quick construction, the cable protection pipe is not easy to be detached, high connection strength and strong connection sealing;

[0049] 3. Lay the pipes facing each other between the two working wells until the pipes intersect between the two working wells: if the annular cylindrical socket (5) happens to meet the annular cylindrical socket (5) of another pipe, cut off the annular cylindrical socket (5) and connect them with the plug-in ring connector (300), which has the characteristics of simple and fast construction, avoiding the problem of pipe waste at the connection, and having a certain water-stopping function;

[0050] 4. Lay the pipelines in opposite directions between the two working wells until the pipelines intersect between the two working wells: if the pipelines overlap when they meet, retain the annular cylindrical socket (4) of one pipeline, cut off the overlapping part of the other pipeline, and use a plug-in ring and clamp ring integrated connector (400) to connect. This has the characteristics of simple and quick construction, avoiding the problem of waste of pipe materials at the connection, having a certain water-stopping function, the cable protection pipe is not easy to be detached, high connection strength, and strong connection sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The present invention will be further described below with reference to the accompanying drawings.

[0052] The present invention will be further described below with reference to the accompanying drawings.

[0053] Figure 1 A cross-sectional view of laying square corrugated pipes for the cable integrated pipeline corridor of the present invention.

[0054] Figure 2 It is a structural diagram of a square corrugated pipe for a cable integrated pipe gallery of the present invention.

[0055] Figure 3 It is a schematic structural diagram of the sleeve (1) of the present invention.

[0056] Figure 4 It is a schematic structural diagram of the insert ring (2) of the present invention.

[0057] Figure 5 It is a schematic structural diagram of the annular cylindrical socket (4) of the present invention.

[0058] Figure 6 It is a schematic structural diagram of the annular cylindrical socket (5) of the present invention.

[0059] Figure 7 It is a schematic structural diagram of the front side of the clamping ring (6) of the present invention.

[0060] Figure 8A schematic structural diagram of the reverse side of the snap ring (6) of the present invention.

[0061] Fig. 9 It is an exploded view of the socket joint (100) of the present invention.

[0062] Fig.10 It is a schematic diagram of the connection structure of the socket joint (100) of the present invention.

[0063] Fig.11 A schematic diagram of an axial cross-section of the socket joint (100) of the present invention after connection.

[0064] Fig.12 An exploded view of a double-socket socket connector (200) and a square bellows having two ends with annular cylindrical sockets (4) according to the present invention.

[0065] Fig.13 A schematic diagram of the connection between the annular cylindrical socket (5) and the clamping ring (6) in the double-socket socket connector (200) of the present invention.

[0066] Fig.14 An axial cross-sectional view of the annular cylindrical socket (5) in the double-socket socket connector (200) of the present invention after being connected to a square corrugated pipe having annular cylindrical sockets (4) at two ends.

[0067] Figure | 15 is a schematic diagram of the connection structure of the double-socket socket connector (200) described in the present invention.

[0068] Fig.16 It is an exploded view of the plug-in ring connector (300) of the present invention.

[0069] Fig.17 It is a schematic structural diagram of the plug-in ring connector (300) of the present invention when it is not connected to a square cable protection corrugated tube.

[0070] Fig.18 It is a schematic diagram of the plug-in ring connector (300) of the present invention before being connected to a square cable protection corrugated tube.

[0071] Fig.19 It is a schematic diagram of the plug-in ring connector (300) of the present invention being connected to a square cable protection corrugated tube.

[0072] Fig. 20 It is an exploded view of the insert ring and clamp ring integrated connector (400) and two sections of square bellows of the present invention.

[0073] Fig.21 It is a schematic structural diagram of the position of the insert ring (2) on the sleeve (1) when the insert ring and clamp ring integrated connector (400) of the present invention is not connected to a square cable protection corrugated tube.

[0074] Fig. 22 It is a schematic diagram of the plug-in ring and clamp ring integrated connector (400) of the present invention being connected to a square cable protection tube. DETAILED DESCRIPTION

[0075] The present invention is described in detail below with reference to specific embodiments.

[0076] See also Figure 1 As shown, a method for laying square corrugated pipes for cable integrated pipe corridors is characterized in that: the square corrugated pipes are laid flat on the bottom plate of the cable integrated pipe corridor, medium-coarse sand is used to backfill and compact the area around the square corrugations from bottom to top layer by layer, the connected square corrugated pipes and the upper and lower layers of the square corrugated pipes are closely arranged, and the gaps are filled with medium-coarse sand. After laying is completed, a cover plate is put on, and a warning tape is set on the cover plate.

[0077] See also Figure 2 As shown, the square corrugated pipe for the cable integrated pipe gallery comprises a hollow cube-shaped pipe section (10), an annular cylindrical pipe section (20), an annular cylindrical socket (4) and an annular cylindrical plug (5), wherein the hollow cube-shaped pipe section (10) and the annular cylindrical pipe section (20) are coaxially connected alternately and are hot-melt connected or hot-melt molded into one body, and the annular cylindrical socket (4) and the annular cylindrical plug (5) are respectively located at two ends of the pipe.

[0078] See also Figure 3-Figure 8 As shown, the connecting part comprises a sleeve (1), an insert ring (2), a hydrophilic non-woven fabric (3), an annular cylindrical socket (4), an annular cylindrical insert (5), a clamping ring (6), a water-expandable sealing ring (7), and a baffle (8).

[0079] See also Figure 3 As shown, the sleeve (1) comprises a socket (11), a limiting ring (12) and a socket (13), wherein the socket (11) is located at one end of the sleeve (1), and the socket (11) comprises a left frame (112), a right frame (113) and a socket (13) connected thereto.

[0080] The concave ring (111) is formed in an integral manner and sandwiched in the middle. The cross sections of the left frame (112) and the right frame (113) are both in a square shape with four inner and outer corners having rounded chamfers. The internal shape of the socket (11) matches the outer frame shape of the square cable protection corrugated tube. The inner side length of the socket (11) is 100-200 mm longer than the outer side length of the square cable protection corrugated tube, so that it can be sleeved outside the square cable protection corrugated tube. The cross section of the concave ring (111) is in a square shape with a quasi-circular outer frame and four inner corners having rounded chamfers. A plug hole (13) is provided at the lower part of the two side surfaces inside the concave ring (111), and each plug hole (13) passes through the inner and outer surfaces of the concave ring (111).

[0081] The limiting ring (12) is located in the middle of the two sleeves (1) and is integrally formed with the sleeves (1). Its cross section is a square frame with a quasi-circular outer frame and four inner corners with arc chamfers, and the inner side length of the limiting ring (12) is 100-200 mm less than the inner side length of the square cable protection corrugated tube, so that the square corrugated tube inserted from one end stops at the limiting ring (12) and cannot reach the other end of the sleeve (1), and vice versa; a plug hole (13) matching the protruding foot (23) of the plug ring (2) is respectively provided at the lower part of the two side surfaces inside the limiting ring (12), and each plug hole (13) passes through the inner and outer surfaces of the limiting ring (12), so that the arcs (22) of the two plug rings (2) can be tightly sleeved outside the limiting ring (12), and the plug ring (2) is temporarily stored on the limiting ring (12) before being connected to the square corrugated tube.

[0082] See also Figure 4 As shown, the outer contour of the cross section of the insert ring (2) is a square (21) lacking one side, and the inner contour of the cross section of the insert ring (2) is a circular arc (22). A convex foot (23) is provided at each end of the inner edge of the circular arc (22). The inner diameter of the circular arc (22) is the same as the outer diameter of the concave ring (111) and the limiting ring (12), so that the circular arc (22) of the insert ring (2) can be tightly sleeved outside the concave ring (111) or the limiting ring (12). The insert ring (2) can be made of elastic plastic material through injection molding, so that the convex foot (23) can be bent and is not easy to break, so that it can be easily inserted into the insertion hole (13) of the concave ring (111) or the limiting ring (12);

[0083] The hydrophilic non-woven fabric (3) is located at the inner contour between the concave ring (111) and the limiting ring (12) in the socket (11) at both ends of the sleeve, and plays a role in sealing and waterproofing.

[0084] See also Figure 5 As shown, the inner wall of the annular cylindrical socket (4) is provided with a socket groove (41), and the socket groove (41) is annular cylindrical and coaxial with the annular cylindrical socket (4).

[0085] See also Figure 6 As shown, the outer wall of the annular cylindrical socket (5) is provided with alternately connected socket convex grooves (51) and socket concave grooves (52), and the socket convex grooves (51) and socket concave grooves (52) are annular cylindrical and are coaxial with the annular cylindrical socket body.

[0086] See also Figure 7 and Figure 8As shown, the clamping ring (6) includes a belt surface (61), a forward fork (62) and a reverse fork (63); the belt surface (61) is an annular cone, and the forward forks (62) are arranged on the annular outer surface of the belt surface (61) at a certain distance, forming a uniformly arranged forward fork (62) on the annular outer surface of the belt surface (61); the reverse fork (63) is arranged on the annular inner surface of the belt surface (61) at a certain distance, forming a uniformly arranged reverse fork (63) on the annular inner surface of the belt surface (61).

[0087] See also Figure 8 As shown, the inverted fork (63) includes an end portion (64) and a tail portion (65), and the end portion (64) of each inverted fork (63) is connected to the inner side of the lower bottom surface of the annular truncated cone of the belt surface (61), and the tail portion (65) is radially tilted outward; that is, on one side of the inner surface of the belt surface (61), the tail portion (65) is radially tilted outward; each inverted fork (63) can be an arc-shaped plate or a square plate. If it is an arc-shaped plate, all the inverted forks (63) are surrounded by the contour of a hollow truncated cone with a large lower bottom surface and a small upper bottom surface in the belt surface (61); if it is a square plate , so that all the inverted forks (63) form a hollow cone-like outline with a large lower bottom surface and a small upper bottom surface on the inner surface of the belt surface (61); the end (64) of each inverted fork (63) is connected to the lower bottom surface edge of the hollow cone or similar hollow cone formed by the inner surface of the belt surface (61), and the tail (65) of each inverted fork (63) is located on the upper bottom surface edge of the hollow cone or similar hollow cone formed by the inner surface of the belt surface (61), and each inverted fork (63) is distributed on the side of the hollow cone or similar hollow cone formed by the inner surface of the belt surface (61).

[0088] See also Figure 7 As shown, the fork (62) includes an end (64) and a tail (65), the end (64) of each fork (62) is connected to the outer side of the upper bottom surface of the annular truncated cone of the belt surface (61), and the tail (65) is radially tilted outward;

[0089] That is, on the other side of the outer surface of the belt surface (61), the tail portion (65) is radially tilted outward; each fork (62) can be an arc-shaped plate or a square plate. If it is an arc-shaped plate, all the forks (62) form a hollow truncated cone with a small bottom surface and a large upper bottom surface on the outer surface of the belt surface (61); if it is a square plate, all the forks (62) form a hollow truncated cone with a small bottom surface and a large upper bottom surface on the outer surface of the belt surface (61). The outline of a truncated cone; the end (64) of each fork (62) is connected to the lower bottom surface edge of the hollow truncated cone or a similar hollow truncated cone surrounded by the outer surface of the belt surface (61), and the tail (65) of each fork (62) is located on the upper bottom surface edge of the hollow truncated cone or a similar hollow truncated cone surrounded by the outer surface of the belt surface (61), and each fork (62) is distributed on the side of the hollow truncated cone or a similar hollow truncated cone surrounded by the outer surface of the belt surface (61).

[0090] The forward fork (62) and the reverse fork (63) have the same structure, but the connection direction with the belt surface is opposite;

[0091] The annular inner surface of the belt surface (61) provided with the forward fork (62) is not provided with the reverse fork (63), and the annular outer surface of the belt surface (61) provided with the reverse fork (63) is not provided with the forward fork (62), and the forward fork (62) and the reverse fork (63) are alternately and evenly arranged on the annular inner and outer surfaces of the belt surface (61); that is, if there is no forward fork (62) on the annular outer surface, a reverse fork (63) is provided at a position on the annular inner surface that is back-to-back with this position, and if there is no reverse fork (63) on the annular inner surface, a reverse fork (63) is provided at a position on the annular inner surface that is back-to-back with this position. A forward fork (62) is provided at the position of the annular outer surface; specifically, under normal circumstances, each section of the forward fork (62) and the reverse fork (63) is 1 / 12 of the arc length, that is, the outer surface of the belt surface (61) of the forward fork (62) is provided with a forward fork (62) of 1 / 12 of the arc length every 1 / 12 of the arc length, and the inner surface of the belt surface (61) provided with the reverse fork (63) is provided with a reverse fork (63) of 1 / 12 of the arc length every 1 / 12 of the arc length, and the forward fork (62) and the reverse fork (63) are alternately and evenly arranged on the annular inner and outer surfaces of the belt surface (61);

[0092] The clamping ring (6) is made of elastic plastic material through injection molding.

[0093] See also Fig. 9 As shown, the socket joint (100) comprises an annular cylindrical socket (4), an annular cylindrical spigot (5), a clamping ring (6) and a water-swellable sealing ring (7).

[0094] See also Fig.10As shown, the annular cylindrical socket (5) is first connected to the water-swellable sealing ring (7) and then connected to the clamping ring (6); the water-swellable sealing ring (7) is located in the corresponding socket groove (52) of the annular cylindrical socket (5), and the tail (65) of each inverted fork (63) of the clamping ring (6) is located and connected to the socket groove (52) closer to the end than the water-swellable sealing ring (7).

[0095] See also Fig.11 As shown, an annular cylindrical socket (4) provided at one end of a square corrugated pipe is connected to an annular cylindrical socket (5) provided at one end of another square corrugated pipe via a clamping ring (6) and a water-expandable sealing ring (7); the tail (65) of the reverse fork (63) of the clamping ring (6) is connected to the socket groove (52) on the outer wall of the annular cylindrical socket (5); the tail (65) of the forward fork (62) of the clamping ring (6) is connected to the socket groove (41) of the annular cylindrical socket (4); the water-expandable sealing ring (7) is located in the gap between the socket groove (52) on the outer wall of the annular cylindrical socket (5) and the socket groove (41) on the inner wall of the annular cylindrical socket (4);

[0096] The annular cylindrical socket (5) provided at the other end of a square corrugated pipe is connected to the annular cylindrical socket (4) provided at one end of a third square corrugated pipe, and the annular cylindrical socket (4) at the other end of another square corrugated pipe is connected to the annular cylindrical socket (5) at one end of a fourth square corrugated pipe, and so on in sequence to achieve long-distance pipeline connection.

[0097] See also Fig.12 As shown, the double-socket socket connector (200) includes two annular cylindrical sockets (5), a retaining ring (6), a water-swellable sealing ring (7) and a baffle (8): the annular cylindrical sockets (5) are located at both ends of the double-socket socket connector (200), and the baffle (8) is located in the middle of the double-socket socket connector (200).

[0098] See also Fig.13 As shown, the annular cylindrical socket (5) is first connected to the water-swellable sealing ring (7) and then connected to the clamping ring (6): the water-swellable sealing ring (7) is located in the corresponding socket groove (52) of the annular cylindrical socket (5), and the tail (65) of each inverted fork (63) of the clamping ring (6) is located and connected to the socket groove (52) closer to the end than the water-swellable sealing ring (7).

[0099] See also Fig.14 and Fig.15As shown, an annular cylindrical socket (4) provided at one end of a square-round corrugated pipe is connected to the annular cylindrical socket (5) at one end of a double-socket socket connector (200) via a clamping ring (6) and a water-swelling sealing ring (7); the tail (65) of the reverse fork (63) of the clamping ring (6) is connected to the socket groove (52) on the outer wall of the annular cylindrical socket (5); the tail (65) of the forward fork (62) of the clamping ring (6) is connected to the socket groove (41) of the annular cylindrical socket (4); the water-swelling sealing ring (7) is located in the gap between the socket groove (52) on the outer wall of the annular cylindrical socket (5) and the socket groove (41) on the inner wall of the annular cylindrical socket (4);

[0100] The annular cylindrical socket (4) provided at one end of another square-shaped corrugated pipe is connected to the annular cylindrical socket (5) at the other end of the double-socket socket connector via a clamping ring (6) and a water-expandable sealing ring (7), thereby realizing the connection of the two annular cylindrical sockets (4) of the square corrugated pipe.

[0101] See also Fig.16 As shown, the plug-in ring type connector (300) comprises two sleeves (1), two plug-in rings (2) and two hydrophilic non-woven fabrics (3).

[0102] See also Fig.17 As shown, when not connected to the square cable protection corrugated tube, the two plug rings (2) are located side by side on the outer surface of the limiting ring (12) between the two sleeves (1), and the protruding feet (23) at both ends of the arc (22) are respectively inserted into the two insertion holes (13) of the limiting ring (12).

[0103] See also Fig.18 and Fig.19 As shown, the outer contours of the two sections of square cable protection corrugated tubes are respectively connected to the inner contours of the sockets (11) at both ends of the sleeve (1), the end of one section of the square cable protection corrugated tube contacts one side of the limiting ring (12), and the end of the other section of the square cable protection corrugated tube contacts the other side of the limiting ring (12), the trough of each section of the square cable protection corrugated tube is respectively located in the concave ring (111) of the socket (11), the arcs (22) of the two plug rings (2) are respectively located on the outer surfaces of the concave ring (111) of the socket (11) at both ends of the sleeve (1), the convex feet (23) at both ends of the arc (22) are respectively inserted into the insertion holes (13) provided on the two opposite lower side surfaces in the concave ring (111), and the convex feet (23) are directly inserted into the bottom end of the trough of the square cable protection corrugated tube.

[0104] See also Fig. 20 As shown, the plug-in ring and snap-ring integrated connector (400) comprises a sleeve (1), an plug-in ring (2), a hydrophilic non-woven fabric (3), an annular cylindrical socket (5), a snap-ring (6), and a water-swellable sealing ring (7);

[0105] The sleeve (1) is located at one end of the square cable protection corrugated tube insert ring and snap ring integrated connector (400), and the annular cylindrical socket (5) is located at the other end of the square cable protection corrugated tube insert ring and snap ring integrated connector (400).

[0106] See also Fig.21 As shown, when not connected to the square cable protection corrugated tube, the plug ring (2) is located on the outer surface of the limiting ring (12) in the middle of the sleeve (1), and the protruding feet (23) at both ends of the arc (22) are respectively inserted into the two insertion holes (13) of the limiting ring (12);

[0107] The sleeve (1) and the annular cylindrical socket (5) are integrally formed by injection molding of polypropylene resin, thereby ensuring the connection strength of the square cable protection corrugated tube and the compressive strength of the connection.

[0108] See also Fig. 22 As shown, a square corrugated pipe having an annular cylindrical socket (4) retained at one end is connected to the annular cylindrical socket (4) of the insert ring and the annular cylindrical socket (5) of the integrated connector of the snap ring and the snap ring through a snap ring (6) and a water-expandable sealing ring (7), and the tail (65) of the reverse fork (63) of the snap ring (6) is connected to the annular cylindrical socket (5).

[0109] The annular cylindrical socket (5) is connected to the socket groove (52) of the outer wall, the tail (65) of the fork (62) of the snap ring (6) is connected to the socket groove (41) of the annular cylindrical socket (4), and the water-swellable sealing ring (7) is located in the gap between the socket groove (52) of the outer wall of the annular cylindrical socket (5) and the socket groove (41) of the inner wall of the annular cylindrical socket (4);

[0110] The sleeve (1) of the plug-in ring and clamp ring integrated connector is connected to another square corrugated pipe section, one end of the square corrugated pipe section is connected to the inner contour of the socket (11), the end of the square cable protection corrugated pipe section is in contact with the limiting ring (12), the trough of the square cable protection corrugated pipe section is located in the concave ring (111) of the socket (11), the arc (22) of the plug-in ring (2) is located on the outer surface of the concave ring (111) of the socket (11) of the sleeve (1), and the arc (22) ) are respectively inserted into the insertion holes (13) provided on the two opposite lower sides of the concave ring (111), and the convex feet (23) are directly inserted into the bottom end of the trough of the square cable protection corrugated pipe section, so that a square corrugated pipe with an annular cylindrical socket (4) at one end is connected to the square cable protection corrugated pipe section through the sleeve (1), the insert ring (2), the annular cylindrical socket (5), the clamping ring (6), and the water-expandable sealing ring (7).

Claims

1. A method for laying square corrugated pipes for cable integrated pipe gallery, characterized in that: The square corrugated pipe is laid flat on the bottom plate of the cable integrated pipe gallery. The square corrugations are backfilled and compacted layer by layer from bottom to top with medium-coarse sand. The connected square corrugated pipes and the upper and lower layers of the square corrugated pipes are closely arranged. The gaps are filled with medium-coarse sand. After the laying is completed, a cover plate is placed on the cover plate. A warning tape is arranged on the cover plate. The square corrugated pipe comprises a hollow cube-shaped pipe section (10) and an annular cylindrical pipe section (20). The components used to connect the square corrugated pipe include a sleeve (1), an insert ring (2), a hydrophilic non-woven fabric (3), an annular cylindrical socket (4), an annular cylindrical plug (5), a clamping ring (6), a water-expandable sealing ring (7), and a baffle (8). The hollow cube-shaped pipe section (10) and the annular cylindrical pipe section (20) are coaxially connected alternately and are hot-melt connected or hot-melt molded into one. The annular cylindrical socket (4) and the annular cylindrical plug (5) are respectively located at two ends of the pipe. The invention is also characterized in that: the pipe connection method includes a socket joint (100) connection method, a double-socket socket connector (200) There are four types of connection methods: a plug-in type connection member (300) connection method, and a plug-in ring and clamp ring combined connection member (400) connection method; When the straight-line laying method is adopted, the pipes are connected with each other by a socket joint (100); The two working wells are laid facing each other until the pipelines intersect between the two working wells: if the annular cylindrical socket (4) of the pipeline just meets the annular cylindrical socket (4) of another pipeline, a double-socket socket connector (200) is used for connection; if the annular cylindrical socket (5) just meets the annular cylindrical socket (5) of another pipeline, the annular cylindrical socket (5) is cut off and a plug-in ring connector (300) is used for connection; if the pipelines overlap when they meet, the annular cylindrical socket (4) of one pipeline is retained, the overlapping part of the other pipeline is cut off, and a plug-in ring and clamp ring integrated connector (400) is used for connection.

2. A method for laying a square corrugated pipe for a cable integrated pipe gallery according to claim 1, characterized in that: The sleeve (1) comprises a socket (11), a limiting ring (12) and a plug hole (13). The socket (11) is located at one end of the sleeve (1). The socket (11) comprises a left frame (112), a right frame (113) and a concave ring (111) formed integrally therewith. The cross sections of the left frame (112) and the right frame (113) are both square in shape with four inner and outer corners having rounded chamfers. The internal shape of the socket (11) matches the outer frame shape of the square cable protection corrugated tube. The inner side length of the socket (11) is 100-200 mm longer than the outer side length of the square cable protection corrugated tube, so that it can be sleeved outside the square cable protection corrugated tube. The cross section of the concave ring (111) is a square in shape with a quasi-circular outer frame and four inner corners having rounded chamfers. A plug hole (13) is provided at the lower part of each of the two side surfaces inside the concave ring (111), and each plug hole (13) passes through the concave ring. The inner and outer surfaces of the two sleeves (111); the limiting ring (12) is located in the middle of the two sleeves (1) and is integrally formed with the sleeves (1), and its cross section is a square frame with a circular outer frame and four inner corners with rounded chamfers, and the inner side length of the limiting ring (12) is 100-200mm less than the inner side length of the square cable protection corrugated tube, so that the square corrugated tube inserted from one end stops at the limiting ring (12) and cannot reach the other end of the sleeve (1), The same is true; a socket (13) matching with the protruding foot (23) of the plug ring (2) is respectively provided at the lower part of the two side surfaces inside the limiting ring (12), and each socket (13) penetrates the inner and outer surfaces of the limiting ring (12), and the inner contour of the cross section of the plug ring (2) is a circular arc (22), so that the circular arcs (22) of the two plug rings (2) can be tightly sleeved outside the limiting ring (12), and the plug ring (2) is temporarily stored on the limiting ring (12) before being connected to the square corrugated tube; The outer contour of the cross section of the insert ring (2) is a square (21) with one side missing. A convex foot (23) is provided at each end of the inner edge of the circular arc (22); the inner diameter of the circular arc (22) is the same as the outer diameter of the concave ring (111) and the limiting ring (12), so that the circular arc (22) of the insert ring (2) can be tightly sleeved outside the concave ring (111) or the limiting ring (12); the insert ring (2) is made of elastic plastic material through injection molding, so that the convex foot (23) can be bent and is not easy to break, so that it can be easily inserted into the insertion hole (13) of the concave ring (111) or the limiting ring (12); The hydrophilic non-woven fabric (3) is located at the inner contour between the concave ring (111) and the limiting ring (12) in the socket (11) at both ends of the sleeve, and plays a role in sealing and waterproofing; The inner wall of the annular cylindrical socket (4) is provided with a socket groove (41), and the socket groove (41) is annular cylindrical and coaxial with the annular cylindrical socket (4); The outer wall of the annular cylindrical socket (5) is provided with socket convex grooves (51) and socket concave grooves (52) which are alternately connected. The socket convex grooves (51) and socket concave grooves (52) are annular cylindrical and are coaxial with the annular cylindrical socket body. The clamping ring (6) comprises a belt surface (61), a forward fork (62) and a reverse fork (63); the belt surface (61) is an annular truncated cone, the forward forks (62) are arranged at a certain distance on the annular outer surface of the belt surface (61), and the forward forks (62) are evenly arranged on the annular outer surface of the belt surface (61); the reverse forks (63) are arranged at a certain distance on the annular inner surface of the belt surface (61), and the reverse forks (63) are evenly arranged on the annular inner surface of the belt surface (61); The inverted fork (63) includes an end portion (64) and a tail portion (65). The end portion (64) of each inverted fork (63) is connected to the inner side of the lower bottom surface of the annular truncated cone of the belt surface (61), and the tail portion (65) is radially tilted outward; that is, on one side of the inner surface of the belt surface (61), the tail portion (65) is radially tilted outward; each inverted fork (63) has two forms, one is an arc-shaped plate, and the other is a square plate. If it is an arc-shaped plate, all the inverted forks (63) are surrounded by a hollow truncated cone with a large lower bottom surface and a small upper bottom surface in the belt surface (61). If it is a square plate, all the inverted forks (63) are surrounded by a hollow cone-like outline with a large lower bottom surface and a small upper bottom surface on the inner surface of the belt surface (61); the end (64) of each inverted fork (63) is connected to the lower bottom surface edge of the hollow cone or similar hollow cone surrounded by the inner surface of the belt surface (61), and the tail (65) of each inverted fork (63) is located on the upper bottom surface edge of the hollow cone or similar hollow cone surrounded by the inner surface of the belt surface (61). Each inverted fork (63) is distributed on the hollow cone or similar hollow cone surrounded by the inner surface of the belt surface (61). On the side of the cone; the fork (62) includes an end (64) and a tail (65), the end (64) of each fork (62) is connected to the outer side of the upper bottom surface of the annular cone of the belt surface (61), and the tail (65) is radially tilted outward; that is, on the other side of the outer surface of the belt surface (61), the tail (65) is radially tilted outward; each fork (62) is an arc plate or a square plate. If it is an arc plate, all the forks (62) form a hollow cone with a small lower bottom surface and a large upper bottom surface on the outer surface of the belt surface (61). If it is a square plate, The plate is formed such that all the forks (62) are surrounded on the outer surface of the belt surface (61) to form a hollow cone-like outline with a small lower bottom surface and a large upper bottom surface; the end (64) of each fork (62) is connected to the lower bottom surface edge of the hollow cone or similar hollow cone surrounded by the outer surface of the belt surface (61), the tail (65) of each fork (62) is located on the upper bottom surface edge of the hollow cone or similar hollow cone surrounded by the outer surface of the belt surface (61), and each fork (62) is distributed on the side of the hollow cone or similar hollow cone surrounded by the outer surface of the belt surface (61); The forward fork (62) and the reverse fork (63) have the same structure, but the connection direction with the belt surface is opposite; The annular inner surface of the belt surface (61) provided with the forward fork (62) is not provided with the reverse fork (63), and the annular outer surface of the belt surface (61) provided with the reverse fork (63) is not provided with the forward fork (62), and the forward fork (62) and the reverse fork (63) are alternately and evenly arranged on the annular inner and outer surfaces of the belt surface (61); that is, if there is no forward fork (62) on the annular outer surface, a reverse fork (63) is provided at a position on the annular inner surface that is back-to-back with this position, and if there is no reverse fork (63) on the annular inner surface, a reverse fork (63) is provided at a position on the annular inner surface that is back-to-back with this position. A forward fork (62) is provided at the position of the annular outer surface; specifically, under normal circumstances, each section of the forward fork (62) and the reverse fork (63) is 1 / 12 of the arc length, that is, the outer surface of the belt surface (61) of the forward fork (62) is provided with a forward fork (62) of 1 / 12 of the arc length every 1 / 12 of the arc length, and the inner surface of the belt surface (61) provided with the reverse fork (63) is provided with a reverse fork (63) of 1 / 12 of the arc length every 1 / 12 of the arc length, and the forward fork (62) and the reverse fork (63) are alternately and evenly arranged on the annular inner and outer surfaces of the belt surface (61); The clamping ring (6) is made of elastic plastic material through injection molding; The baffle (8) is made of polypropylene material and is formed by injection molding.

3. A method for laying a square corrugated pipe for a cable integrated pipe gallery according to claim 1 or 2, characterized in that: A socket joint (100) comprises an annular cylindrical socket (4), an annular cylindrical spigot (5), a clamping ring (6) and a water-expandable sealing ring (7); The annular cylindrical socket (5) is first connected to the water-swellable sealing ring (7) and then connected to the clamping ring (6); the water-swellable sealing ring (7) is located in the corresponding socket groove (52) of the annular cylindrical socket (5), and the tail (65) of each inverted fork (63) of the clamping ring (6) is located and connected to the socket groove (52) closer to the end than the water-swellable sealing ring (7); An annular cylindrical socket (4) provided at one end of a square corrugated pipe is connected to an annular cylindrical socket (5) provided at one end of another square corrugated pipe via a clamping ring (6) and a water-expandable sealing ring (7); the tail (65) of the reverse fork (63) of the clamping ring (6) is connected to a socket groove (52) on the outer wall of the annular cylindrical socket (5); the tail (65) of the forward fork (62) of the clamping ring (6) is connected to a socket groove (41) of the annular cylindrical socket (4); the water-expandable sealing ring (7) is located in a gap between the socket groove (52) on the outer wall of the annular cylindrical socket (5) and the socket groove (41) on the inner wall of the annular cylindrical socket (4); The annular cylindrical socket (5) provided at the other end of a square corrugated pipe is connected to the annular cylindrical socket (4) provided at one end of a third square corrugated pipe, and the annular cylindrical socket (4) at the other end of another square corrugated pipe is connected to the annular cylindrical socket (5) at one end of a fourth square corrugated pipe, and so on in sequence to achieve long-distance pipeline connection.

4. A method for laying square corrugated pipes for cable integrated pipe gallery according to claim 1 or 2, characterized in that: The double-socket socket connector (200) comprises two annular cylindrical sockets (5), a clamping ring (6), a water-expandable sealing ring (7) and a baffle (8); the annular cylindrical sockets (5) are located at both ends of the double-socket socket connector (200), and the baffle (8) is located in the middle of the double-socket socket connector (200); The annular cylindrical socket (5) is first connected to the water-swellable sealing ring (7) and then connected to the clamping ring (6); the water-swellable sealing ring (7) is located in the corresponding socket groove (52) of the annular cylindrical socket (5), and the tail (65) of each inverted fork (63) of the clamping ring (6) is located and connected to the socket groove (52) closer to the end than the water-swellable sealing ring (7); An annular cylindrical socket (4) provided at one end of a square-round corrugated pipe is connected to the annular cylindrical socket (5) at one end of a double-socket socket connector (200) via a clamping ring (6) and a water-swellable sealing ring (7); the tail (65) of the reverse fork (63) of the clamping ring (6) is connected to the socket groove (52) on the outer wall of the annular cylindrical socket (5); the tail (65) of the forward fork (62) of the clamping ring (6) is connected to the socket groove (41) of the annular cylindrical socket (4); the water-swellable sealing ring (7) is located in the gap between the socket groove (52) on the outer wall of the annular cylindrical socket (5) and the socket groove (41) on the inner wall of the annular cylindrical socket (4); The annular cylindrical socket (4) provided at one end of another square-shaped corrugated pipe is connected to the annular cylindrical socket (5) at the other end of the double-socket socket connector via a clamping ring (6) and a water-expandable sealing ring (7), thereby realizing the connection of the two annular cylindrical sockets (4) of the square corrugated pipe.

5. The method for laying a square corrugated pipe for a cable integrated pipe gallery according to claim 2 is characterized in that: The plug-in ring type connector (300) comprises a sleeve (1), two plug-in rings (2) and two hydrophilic non-woven fabrics (3); When not connected to the square cable protection corrugated tube, the two plug rings (2) are located side by side on the outer surface of the limiting ring (12) in the middle of the sleeve (1), and the protruding feet (23) at both ends of the arc (22) are respectively inserted into the two insertion holes (13) of the limiting ring (12); The outer contours of the two sections of square cable protection corrugated tubes are respectively connected to the inner contours of the sockets (11) at both ends of the sleeve (1); the end of one section of the square cable protection corrugated tube contacts one side of the limiting ring (12); the end of the other section of the square cable protection corrugated tube contacts the other side of the limiting ring (12); the trough of each section of the square cable protection corrugated tube is respectively located in the concave ring (111) of the socket (11); the arcs (22) of the two plug rings (2) are respectively located on the outer surfaces of the concave ring (111) of the socket (11) at both ends of the sleeve (1); the convex feet (23) at both ends of the arc (22) are respectively inserted into the insertion holes (13) provided on the two opposite lower side surfaces in the concave ring (111), and the convex feet (23) are directly inserted into the bottom end of the trough of the square cable protection corrugated tube.

6. A method for laying square corrugated pipes for cable integrated pipe gallery according to claim 1 or 2, characterized in that: The plug-in ring and snap-ring integrated connector (400) comprises a sleeve (1), an plug-in ring (2), a hydrophilic non-woven fabric (3), an annular cylindrical socket (5), a snap-ring (6), and a water-expandable sealing ring (7); The sleeve (1) is located at one end of the square cable protection corrugated tube insert ring and the clamp ring integrated connector (400), and the annular cylindrical socket (5) is located at the other end of the square cable protection corrugated tube insert ring and the clamp ring integrated connector (400); When not connected to the square cable protection corrugated tube, the insert ring (2) is located on the outer surface of the limiting ring (12) in the middle of the sleeve (1), and the protruding feet (23) at both ends of the arc (22) are respectively inserted into the two insertion holes (13) of the limiting ring (12); The sleeve (1) and the annular cylindrical socket (5) are integrally formed by injection molding of polypropylene resin, thereby ensuring the connection strength of the square cable protection corrugated tube and the compressive strength of the connection; The annular cylindrical socket (4) of a square corrugated pipe with an annular cylindrical socket (4) retained at one end is connected to the annular cylindrical socket (5) of the plug ring and the annular cylindrical socket integrated connector via a clamping ring (6) and a water-swelling sealing ring (7); the tail (65) of the reverse fork (63) of the clamping ring (6) is connected to the socket groove (52) of the outer wall of the annular cylindrical socket (5); the tail (65) of the forward fork (62) of the clamping ring (6) is connected to the socket groove (41) of the annular cylindrical socket (4); the water-swelling sealing ring (7) is located in the gap between the socket groove (52) of the outer wall of the annular cylindrical socket (5) and the socket groove (41) of the inner wall of the annular cylindrical socket (4); The sleeve (1) of the plug-in ring and clamp ring integrated connector is connected to another square corrugated pipe section, one end of the square corrugated pipe section is connected to the inner contour of the socket (11), the end of the square cable protection corrugated pipe section is in contact with the limiting ring (12), the trough of the square cable protection corrugated pipe section is located in the concave ring (111) of the socket (11), the arc (22) of the plug-in ring (2) is located on the outer surface of the concave ring (111) of the socket (11) of the sleeve (1), and the arc (22) ) are respectively inserted into the insertion holes (13) provided on the two opposite lower sides of the concave ring (111), and the convex feet (23) are directly inserted into the bottom end of the trough of the square cable protection corrugated pipe section, so that a square corrugated pipe with an annular cylindrical socket (4) at one end is connected to the square cable protection corrugated pipe section through the sleeve (1), the insert ring (2), the annular cylindrical socket (5), the clamping ring (6), and the water-expandable sealing ring (7).

Images