PE drainage pipe and pipeline mounting assembly

Abstract

The invention discloses a PE drainage pipe and a pipeline installation assembly, and relates to the field of drainage pipe installation, the PE drainage pipe comprises a connecting shell arranged among a plurality of pipeline main bodies, annular grooves are formed in the positions, located on the pipeline main bodies, of the two sides of the connecting shell, and extrusion concave surfaces are formed in the positions, located on the side walls of the two annular grooves, of the connecting shell; an abutting flaring capable of expanding under stress is formed in the position, located at the notch of each annular groove, of the connecting shell, a plurality of movable cavities are formed in the positions, located at the bottoms of the two annular grooves, of the connecting shell, and one end of each movable cavity communicates with an extrusion opening formed in the corresponding annular groove and aligned with the corresponding extrusion concave surface; and locking openings are formed in the sides, located at the extrusion openings, in the multiple movable cavities and communicate with the annular groove. A physical transverse inserting mode is used, sealing connection of the pipeline is guaranteed, meanwhile, assembling operation is easy, installation is convenient, distortion damage is avoided, and the installation cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of drainage pipe installation, and in particular to a PE drainage pipe and a pipeline installation assembly. Background Art

[0002] Plastic pipes in my country are developing rapidly and their quality is constantly improving. A plastic pipe industry has been initially formed, mainly composed of polyvinyl chloride (PVC-U) pipes, polyethylene (PE) pipes and polypropylene (PP-R) pipes. Among them, polyethylene (PE) pipes are widely used in building water supply, building drainage, buried drainage pipes, building heating, gas transmission and distribution, gas transmission pipes, electrical and telecommunications protective casings, industrial pipes, agricultural pipes, etc. due to their unique advantages. They are mainly used in urban water supply, urban gas supply and farmland irrigation. When large pipes such as industrial pipes are installed, due to their large volume, they are usually assembled by hot melt splicing or flange thread connection when connecting the pipe body. However, hot melt splicing requires the use of fixed equipment and hot melt devices on the surface of the pipe body, which greatly increases the installation cost in the large-area industrial pipe system. Flange thread connection requires the rotation of large-volume pipes or flange connectors as a whole, which is easy to cause the rotation angles of both ends to be asynchronous, resulting in twisting and damage, and is very inconvenient to operate and install. Summary of the invention

[0003] In order to improve the problem that in the current conventional pipeline installation assembly, the operation and installation are very inconvenient during the assembly of the pipe body, and the installation cost is increased, the present invention provides a PE drainage pipe and a pipeline installation assembly.

[0004] The present invention provides a PE drainage pipe and a pipe installation assembly adopting the following technical solutions: A PE drainage pipe comprises a pipe body, wherein the outer surface of the pipe body is provided with a wear-resistant layer for contacting and rubbing with the outside, a support layer for providing pipe support is provided inside the wear-resistant layer, an extrusion layer for deforming under force is provided on one side of the support layer in the pipe body, a buffer layer for reducing vibration is provided inside the support layer and the extrusion layer, and a smooth layer in contact with the fluid is provided inside the buffer layer.

[0005] By adopting the above technical scheme, the smooth layer contacts the fluid to prevent corrosion and improve the service life of the pipeline. The buffer layer is connected to the smooth layer to reduce the vibration from the outside to the inside and from the inside to the outside and maintain the operation of the pipeline system. The support layer covers the buffer layer to provide the main support for the pipeline body and avoid excessive twists and turns during the installation process. Finally, the wear-resistant layer is arranged on the outermost layer to cover the internal structure to reduce friction damage caused by pipeline installation. At the same time, the pipeline body is located at one end of the support layer and is arranged as an extrusion layer. The extrusion layer can be deformed by pressure, thereby bending into a shape that fits the card connection to maintain the stability and sealing of the pipeline connection.

[0006] A pipe installation assembly, the above-mentioned PE drainage pipe, comprises a connecting shell arranged between a plurality of pipe bodies, annular grooves are provided on both sides of the connecting shell at positions of the pipe bodies, extrusion concave surfaces are provided on the two side walls of the annular grooves of the connecting shell, and an abutting flare that can be expanded under force is provided at the notch of the annular groove of the connecting shell; The connection shell is provided with a plurality of movable cavities at the bottom of the two annular grooves, wherein a pressing block is movably arranged in the movable cavity, the pressing block is aligned with the pressing concave surface, and the bottom of the pressing block is pressed and abutted against the surface of the wear-resistant layer; A locking mechanism is fixedly arranged on the surface of the pipe body at one end of the connecting shell, and the locking mechanism includes a locking ring body which is fixedly arranged on the surface of the pipe body and plugged into the annular groove. Extrusion grooves are penetrated through the surface of the locking ring body at the positions of multiple extrusion blocks, and the inner wall of the extrusion groove is movably plugged into the extrusion block.

[0007] By adopting the above technical scheme, the annular grooves on both sides of the connecting shell are respectively plugged into the adjacent pipe bodies, so that the pipe body and the connecting shell are fixed. At the same time, when the pipe body is inserted into the connecting shell, the insertion end is deformed by pressure and pressed into the extrusion concave surface to improve precision. At the same time, when the annular groove applies pressure to the inside of the connecting shell, the inner hole of the connecting shell is in a cylindrical state, thereby forming tension, so that the abutting flared opening is expanded and abutted and extruded with the inner wall of the pipe body to form an overall sealed connection. The locking ring body is inserted into the annular groove to be plugged into the connecting shell, and drives multiple extrusion grooves and multiple extrusion openings to be aligned, thereby reserving moving space for the extrusion action of the extrusion block, so that the extrusion block is connected with the surface of the pipe body.

[0008] Preferably, the connecting shell is provided with multiple active cavities at the bottom of the two annular grooves, one end of each of the multiple active cavities is connected to the annular groove and provided with an extrusion opening aligned with the extrusion concave surface, and one side of each of the multiple active cavities is connected to the annular groove and provided with a locking opening.

[0009] By adopting the above technical solution, the movable cavity opened in the connecting shell reserves movable space for subsequent driving blocks and other transmission structures. At the same time, the extrusion port is connected to the annular groove to reserve extrusion space for the pipeline main body extrusion structure, and the locking port is connected to the annular groove to reserve pop-up space for the fixed structure of the transmission structure.

[0010] Preferably, a plurality of the active cavities are each provided with a pushing block inserted at the bottom, the pushing block is rotatably connected to a rotating plate at one end away from the annular groove, both sides of the rotating plate are rotatably connected to the side walls of the active cavity, the rotating plate is rotatably connected to a connecting plate at one end away from the pushing block, the connecting plate is rotatably connected to a conversion plate at one end away from the rotating plate, and the bottom of the conversion plate is located in the extrusion port and is rotatably connected to the extrusion block.

[0011] By adopting the above technical solution, the pushing block is pushed by the thrust to push the bottom of the rotating plate, and the bottom of the rotating plate is rotated by the thrust, so that the top of the rotating plate pushes one end of the connecting plate to move tiltedly, and the connecting plate is pushed so that the conversion plate at the other end applies thrust synchronously, and the conversion plate converts the thrust received into a vertical downward thrust, thereby pushing the extrusion block out of the extrusion port, thereby abutting and extruding against the surface of the pipeline body, so that the surface of the pipeline body is pressed into the extrusion concave surface to form a seal and fixation.

[0012] Preferably, the plurality of movable cavities are provided with transverse grooves on both sides of the push block, and the two transverse grooves are movably connected with the push block; the plurality of movable cavities are provided with oblique grooves on both sides of the conversion plate, and the two oblique grooves are movably abutted with the conversion plate.

[0013] By adopting the above technical scheme, the transverse grooves on both sides of the active cavity are plugged into the two sides of the push block, thereby limiting the lateral movement of the push block to prevent deviation, and the oblique grooves on both sides of the other end of the active cavity are movably abutted against the two sides of the conversion plate. The top of the rotating plate is pushed downward along the oblique grooves and remains rotatable during the movement, thereby converting the inclined thrust received by the top of the rotating plate into longitudinal downward force.

[0014] Preferably, a locking groove aligned with the locking port is provided on one side of the plurality of extrusion grooves on the surface of the locking ring body, and locking blocks are telescopically provided in the plurality of locking grooves.

[0015] By adopting the above technical solution, multiple locking grooves are aligned with multiple locking openings, so that the locking block pops out from the multiple locking grooves into the locking openings to form a snap connection, thereby helping to improve the connection stability between the locking ring body and the connecting shell.

[0016] Preferably, unlocking bolts are telescopically arranged on both sides of the multiple locking grooves on the surface of the locking ring body, multiple alignment blocks are arranged around the outer surface of the locking ring body, and sockets are opened on the inner surface of the locking ring body at the positions of the multiple pushing blocks.

[0017] By adopting the above technical solution, multiple unlocking bolts are located on both sides of the multiple locking grooves, thereby limiting the multiple locking blocks and preventing the locking blocks from popping out. At the same time, multiple sockets are opened on the inner surface of the locking ring body and abut against the outer surface of the pushing block to limit the movement of the pushing block.

[0018] Preferably, alignment openings are provided in the two annular grooves at the positions of the multiple alignment blocks, and unlocking push blocks are fixed at the positions at the bottoms of the multiple locking openings in the two annular grooves, and the multiple unlocking push blocks are aligned one by one with the multiple unlocking bolts.

[0019] By adopting the above technical solution, the alignment opening is aligned with multiple alignment blocks, so that when the locking ring body is inserted into the ring groove, the alignment block is driven to be inserted into the alignment opening, which facilitates accurate insertion of the locking ring body and improves the connection stability between the locking ring body and the connecting shell.

[0020] Preferably, the side surface of the pipe body is provided with a second socket at a position aligned with the plurality of first sockets relative to the extrusion layer, and the inner walls of the plurality of first sockets and second sockets are movably connected with the push block.

[0021] By adopting the above technical solution, when the pipeline body is inserted into the annular groove, multiple sockets 1 and multiple sockets 2 are spliced ​​to form a recess, and then the recess is movably plugged into the push block, thereby forming a limit for the alignment of the pipeline body and the push block to prevent misalignment.

[0022] Preferably, the side surface of the pipe body is located at one end of the extrusion layer and is plugged into the annular groove, and the wear-resistant layer is located at the extrusion layer and is aligned with the center of the extrusion concave surface.

[0023] By adopting the above technical solution, the pipeline body is inserted into the connecting shell through the annular groove to form a pipeline connection, and after the pipeline body is inserted, the extrusion layer is aligned with the extrusion concave surface, thereby forming an extrusion block to press down and deform the extrusion layer, so that the pipeline body is fixedly connected to the connecting shell.

[0024] In summary, the present invention includes at least one of the following beneficial technical effects: 1. Use the pipe body to drive the locking mechanism to directly insert into the annular groove, push the push block to transmit power, so that the extrusion block applies pressure to the pipe body. The pipe body is deformed by the pressure and fits with the extruded concave surface. At the same time, the interaction force generated causes the inner wall of the pipe body to be abut against the flared expansion and extrusion, so that the pipe body deforms and bends twice to fit, ensuring the sealed connection between the pipe body and the connecting shell. Compared with the hot melt connection method, the physical mechanical force connection is used to effectively reduce the installation cost; 2. By inserting the pipe body into the connecting shell horizontally to form a sealed connection, compared with the overall rotation of the pipe connected by flange thread, the installation operation of the large-volume pipe body is simpler, and at the same time, the distortion and damage caused by the asynchronous rotation of the two ends of the pipe during the rotation installation is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 This is a main structure diagram of the pipeline of the present invention; Figure 3 It is a three-dimensional exploded view of the present invention; Figure 4 It is a cross-sectional view of the connection housing of the present invention; Figure 5 This is a structural diagram of the locking mechanism of the present invention; Figure 6 It is an enlarged view of point A of the present invention.

[0026] Reference numerals: 1. pipe body; 2. smooth layer; 3. buffer layer; 4. support layer; 5. wear-resistant layer; 6. extrusion layer; 7. Locking mechanism; 71. Locking ring; 72. Alignment block; 73. Extrusion groove; 74. Locking groove; 75. Unlocking bolt; 76. Locking block; 77. Socket 1; 8. Connecting shell; 9. Ring groove; 10. Abutting expansion; 11. Extrusion concave surface; 12. Active cavity; 13. Locking opening; 14. Extrusion opening; 15. Push block; 16. Rotating plate; 17. Connecting plate; 18. Conversion plate; 19. Extrusion block; 20. Alignment opening; 21. Oblique groove; 22. Horizontal groove; 23. Unlocking push block; 24. Socket 2. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-Figure 6 The present invention is described in further detail.

[0028] The embodiment of the present invention discloses a PE drainage pipe and a pipe installation assembly.

[0029] Example 1, reference Figure 1 , Figure 2 A PE drainage pipe includes a pipe body 1, which is composed of a multi-layer structure. The outer surface of the pipe body 1 is set as a wear-resistant layer 5. The wear-resistant layer 5 is made of PE resin material and has good wear resistance. The inner surface of the wear-resistant layer 5 is set as a support layer 4. The support layer 4 is made of carbon fiber material, which has high strength and low density, thereby reducing the overall weight of the pipe body 1. An extrusion layer 6 is set on one side of the support layer 4 in the pipe body 1. The extrusion layer 6 is made of thermoplastic elastomer, which can be deformed under pressure and has certain support. The inner surfaces of the support layer 4 and the extrusion layer 6 are set as a buffer layer 3. The buffer layer 3 is made of rubber material, which provides the main flexibility of the pipe and reduces the impact force on the pipe body 1. The inner surface of the buffer layer 3 is set as a smooth layer 2. The smooth layer 2 is made of polyethylene material, which has strength and good corrosion resistance and is used for direct contact with the fluid.

[0030] The implementation principle of a PE drainage pipe in an embodiment of the present invention is as follows: the smooth layer 2 is in direct contact with the fluid and has good corrosion resistance, thereby extending the service life of the pipeline body 1; the outer surface of the smooth layer 2 is connected to the buffer layer 3; when the fluid transmits vibration outward through the smooth layer 2 and transmits vibration inward when the pipeline is installed, it is blocked by the buffer layer 3, thereby effectively reducing the jitter of the pipeline body 1 and ensuring the stable operation of the pipeline system; the outer surface of the buffer layer 3 is connected to the support layer 4; the hardness of the support layer 4 supports the pipeline body 1, thereby avoiding fluid impact and excessive deformation during external installation; at the same time, an extrusion layer 6 is set at the assembly end of the pipeline body 1 on one side of the support layer 4; the extrusion layer 6 can be deformed to a certain extent under pressure, thereby ensuring that the deformable layer is adapted to the shape for fitting and clamping when connected to the connecting mechanism; the outermost layer of the pipeline body 1 is set to a wear-resistant layer 5, thereby avoiding damage caused by friction between the external structure, wall and pipeline during pipeline installation.

[0031] Example 2, reference Figure 1 , Figure 3 , Figure 4 The difference between this embodiment and embodiment 1 is that a pipeline installation assembly includes a connecting shell 8, and a connecting shell 8 is spliced ​​between two adjacent pipeline bodies 1. The central through hole of the connecting shell 8 is cylindrical, and an annular groove 9 is opened on the surface of both sides of the connecting shell 8. The annular groove 9 is inserted and connected with one end of the pipeline body 1, and the connecting shell 8 is opened at the middle of the inner wall of the two annular grooves 9. The extrusion concave surface 11 is annular and concave inwardly concave. The inner surface of the connecting shell 8 is provided with an abutment flare 10 at the notch of the annular groove 9. The opposite ends of the two abutment flares 10 are set as pointed ends, and the inclined surface is extended from the pointed ends to the inside of the connecting shell 8 to form an inclined surface. The two annular grooves 9 are located on the opposite side of the extrusion concave surface 11. A plurality of alignment openings 20 are opened around, and the plurality of alignment openings 20 extend to the bottom of the annular groove 9.

[0032] It should be noted that both annular grooves 9 extend inward to form a plurality of active cavities 12, and the plurality of active cavities 12 are formed around the inner surface of the annular groove 9 as a whole (the number of active cavities 12 is adjusted according to the actual volume of the pipeline body 1), and the inner wall of the active cavity 12 is located at the position of the extrusion concave surface 11 and penetrates the connecting shell 8 to form an extrusion port 14, and the extrusion port 14 is connected with the annular groove 9, and at the same time, the inner wall of the active cavity 12 is located on one side of the extrusion port 14 to form a locking port 13, which is also connected with the annular groove 9, and the inner wall of the annular groove 9 is located at both sides of the bottom of the locking port 13 to fix unlocking push blocks 23.

[0033] Two annular grooves 9 are provided on both sides of the connecting shell 8, so that the abutting flares 10 at both ends are separated from the inner wall of the connecting shell 8. When the extrusion concave surface 11 is squeezed inwardly by pressure, an interaction force is formed on the outer surface of the tube body of the abutting flare 10, so that the extrusion concave surface 11 is squeezed inwardly, and the abutting flare 10 expands outwardly. As the abutting flare 10 expands outwardly, it abuts against the inner wall of the inserted pipe body 1, and the other side of the inner wall of the pipe body 1 is pressed into the extrusion concave surface 11, so that the insertion end of the pipe body 1 is bent twice in an S shape as a whole, thereby increasing the contact area between the pipe body 1 and the connecting shell 8. At the same time, the active cavity 12 provided at the same time reserves a fixed space for the installation of the subsequent transmission structure, and the extrusion port 14 connects the active cavity 12 with the extrusion concave surface 11, thereby ensuring that the downward pressing direction of the subsequent extrusion block 19 is aligned with the extrusion concave surface 11.

[0034] Reference Figure 3 , Figure 4 , Figure 6 , transverse grooves 22 are provided on both sides of the communicating opening between the active cavity 12 and the annular groove 9, and a pushing block 15 is movably provided in the transverse groove 22, and a rotating plate 16 is rotatably connected to one side of the pushing block 15 located in the active cavity 12, and both ends of the rotating plate 16 are rotatably connected to the inner wall of the active cavity 12, and a connecting plate 17 is rotatably provided on the top of the rotating plate 16, and the connecting plate 17 is entirely transversely arranged in the active cavity 12, and a groove with the same width as the locking port 13 is provided on the lower end surface of the connecting plate 17, and a conversion plate 18 is rotatably connected to the other end of the connecting plate 17 relative to the rotating plate 16, and the conversion plate 18 is normally in an inclined state, and oblique grooves 21 are provided on the inner wall of the active cavity 12 at both ends of the conversion plate 18, and the oblique grooves 21 are movably abutted against the rotating rods at both ends of the conversion plate 18, so that the conversion plate 18 is located in the oblique groove 21 and moves and rotates, and an extrusion block 19 is rotatably connected to the bottom of the conversion plate 18, and the extrusion block 19 is normally located in the extrusion port 14.

[0035] The push block 15 is subjected to thrust and moves along the transverse groove 22 toward the bottom of the annular groove 9. The push block 15 moves and applies thrust to the bottom of the rotating plate 16, and the push block 15 is in rotational connection with the rotating plate 16. In addition, the middle part of the rotating plate 16 is rotationally connected to the inner wall of the active chamber 12, so that the rotating plate 16 rotates as a whole, and then the top of the rotating plate 16 rotates to form a thrust on the connecting plate 17. The other end of the connecting plate 17 is rotationally connected to the conversion plate 18 to form an overall stability, thereby transmitting thrust to the top of the conversion plate 18. The conversion plate 18 is located in the oblique groove 21 as a whole and can move and rotate, thereby converting the inclined thrust transmitted by the connecting plate 17 into downward pressure, and finally driving the extrusion block 19 to move downward and protrude from the extrusion port 14 to contact the surface of the pipeline body 1.

[0036] Reference Figure 3 , Figure 4 , Figure 5A locking mechanism 7 is fixedly arranged on the surface of the pipe body 1 where the annular groove 9 is inserted. The locking mechanism 7 includes a locking ring body 71 fixedly arranged on the surface of the pipe body 1. A plurality of extrusion grooves 73 are arranged around the surface of the locking ring body 71. The plurality of extrusion grooves 73 are aligned with the centers of the plurality of extrusion ports 14 one by one. A locking groove 74 is arranged on the surface of the locking ring body 71 on one side of the plurality of extrusion grooves 73. The plurality of locking grooves 74 are aligned with the centers of the plurality of locking ports 13 one by one. A resiliently retractable locking block 76 is fixedly arranged in the plurality of locking grooves 74. A transverse groove is arranged on both sides of the plurality of locking grooves 74. The transverse groove is located inside the locking ring body 71, and the middle part of the transverse groove is connected with the locking groove 74, so that the width of the middle part of the transverse groove is half of the width of the two sides. A resiliently retractable unlocking bolt 75 is fixedly arranged in the transverse groove. At the same time, the plurality of unlocking bolts 75 are aligned with the centers of the plurality of unlocking push blocks 23, and the width of the unlocking push block 23 is half of the unlocking bolt 75.

[0037] It should be noted that the outer surface of the locking ring body 71 is provided with alignment blocks 72 protruding from the positions of the multiple alignment openings 20, the inner surface of the locking ring body 71 is provided with a matching socket 77 at the positions of the multiple push blocks 15, the socket 77 is connected to the extrusion groove 73, and the surface of the pipe body 1 is provided with a socket 24 at the positions of the multiple sockets 1 77, the socket 24 is opened from the wear-resistant layer 5 to the extrusion layer 6, and the recess formed by the socket 1 77 and the socket 2 24 is movably connected to the push block 15.

[0038] When the locking ring body 71 is inserted into the annular groove 9, the locking ring body 71 is inserted synchronously as a whole, and multiple alignment blocks 72 are inserted into the alignment opening 20 during the insertion process, thereby preventing the locking ring body 71 from shifting. As the locking ring body 71 is inserted into the annular groove 9, the unlocking push block 23 contacts the unlocking bolt 75 to generate a thrust, and the unlocking bolt 75 is pressed inwardly by the thrust, thereby canceling the fixation of the locking block 76. The locking block 76 is rebounded from the locking groove 74 by the torsion spring, and is extended from the locking opening 13 to be plugged into the groove at the bottom of the connecting plate 17 to form a fixation, and the locking ring body 71 is fixed to the pipeline main body 1. When the locking ring body 71 is aligned and inserted with the connecting shell 8, the recess formed by the alignment and splicing of the socket one 77 and the socket two 24 is plugged into the push block 15 to avoid shifting, and after the plugging is completed, the locking ring body 71 continues to be pushed in, thereby generating a thrust on the push block 15.

[0039] Among them, the pipeline installation assembly also includes a series of components such as gaskets, fasteners, valves, mounting parts, attachments, etc., which together constitute the main body of the pipeline system. Since it is not the main technology and is a conventional existing structure, it will not be described in detail.

[0040] The implementation principle of Example 2 is as follows: when using this structure, the personnel need to seal and fix the locking ring body 71 on the surface of the pipe body 1 located at the extrusion layer 6, and align the multiple alignment blocks 72 on the surface of the locking ring body 71 with the alignment opening 20, and then insert one end of the pipe body 1 located at the locking ring body 71 into the annular groove 9. As the pipe body 1 is continuously inserted, the recess formed by the socket 1 77 and the socket 2 24 is plugged into the push block 15, and then the bottom surface of the recess pushes the push block 15 to move along the transverse groove 22, and the push block 15 pushes the bottom of the rotating plate 16 to move, so that the rotating plate 16 rotates, thereby applying a thrust to one end of the connecting plate 17, and the connecting plate 17 transmits the thrust to the top of the conversion plate 18, so that the conversion plate 18 moves along the oblique groove 21, thereby converting the oblique thrust into a longitudinal thrust, and applying a downward thrust to the top of the extrusion block 19; The extrusion block 19 is protruded from the extrusion opening 14 by the thrust, and is pressed downward by the extrusion groove 73 to extrude the surface of the pipe body 1. The pipe body 1 is deformed by the pressure and abuts against the extrusion concave surface 11. The extrusion concave surface 11 is subjected to the pressure to generate a mutual force, so that the abutting flare 10 is expanded. The abutting flare 10 is expanded to be extruded and fitted with the inner wall of the pipe body 1. Thus, the pipe body 1 is pressed into the extrusion concave surface 11, and the abutting flare 10 is expanded to be extruded and fitted with the inner wall of the pipe body 1, so that the part of the pipe body 1 located in the annular groove 9 is bent twice. Only by using a lateral insertion action on the pipe body 1, the stability of the connection of the pipe body 1 can be maintained, and a sealing effect can be formed at the same time. When the locking block 76 is unlocked, the locking block 76 is pushed into the locking groove 74 and the locking block 76 is pushed out of the locking groove 74. The locking block 76 is then protruded from the locking opening 13 and plugged into the groove at the bottom of the connecting plate 17. The series of transmission structures on the left and right sides of the connecting plate 17 are locked to form a secondary insurance and improve stability.

[0041] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A PE drainage pipe, characterized in that: The invention comprises a pipeline body (1), wherein the outer surface of the pipeline body (1) is provided with a wear-resistant layer (5) for contacting and rubbing with the outside, a support layer (4) for providing pipeline support is provided inside the wear-resistant layer (5), an extrusion layer (6) for deforming under force is provided inside the pipeline body (1) and located on one side of the support layer (4), a buffer layer (3) for reducing vibration is provided inside the support layer (4) and the extrusion layer (6), and a smooth layer (2) for contacting with the fluid is provided inside the buffer layer (3).

2. A pipeline installation assembly, characterized in that: A PE drainage pipe according to claim 1, comprising a connecting shell (8) arranged between a plurality of pipe bodies (1), annular grooves (9) are provided on both sides of the connecting shell (8) at positions of the pipe bodies (1), extrusion concave surfaces (11) are provided on the side walls of the two annular grooves (9) of the connecting shell (8), and an abutting flared opening (10) capable of being expanded under force is provided at the notch of the annular groove (9) of the connecting shell (8); The connecting shell (8) is provided with a plurality of movable cavities (12) at the bottom of the two annular grooves (9), wherein a downwardly-pressing extrusion block (19) is movably arranged in the movable cavity (12), the extrusion block (19) is aligned with the extrusion concave surface (11), and the bottom of the extrusion block (19) is in extrusion contact with the surface of the wear-resistant layer (5); A locking mechanism (7) is fixedly provided on the surface of the pipe body (1) at one end of the connecting shell (8), the locking mechanism (7) comprising a locking ring body (71) fixedly provided around the surface of the pipe body (1) and plugged into the annular groove (9), and extrusion grooves (73) are provided through the surface of the locking ring body (71) at the positions of the plurality of extrusion blocks (19), and the inner wall of the extrusion groove (73) is movably plugged into the extrusion block (19).

3. A pipeline installation assembly according to claim 2, characterized in that: One end of each of the plurality of movable chambers (12) is connected to the annular groove (9) and is provided with an extrusion opening (14) aligned with the extrusion concave surface (11); and one side of each of the plurality of movable chambers (12) located at the extrusion opening (14) is connected to the annular groove (9) and is provided with a locking opening (13).

4. A pipeline installation assembly according to claim 3, characterized in that: A plurality of the bottoms of the movable chambers (12) are all plugged with push blocks (15); one end of the push block (15) away from the annular groove (9) is rotatably connected to a rotating plate (16); both sides of the rotating plate (16) are rotatably connected to the side walls of the movable chamber (12); one end of the rotating plate (16) away from the push block (15) is rotatably connected to a connecting plate (17); one end of the connecting plate (17) away from the rotating plate (16) is rotatably connected to a conversion plate (18); the bottom of the conversion plate (18) is located in the extrusion port (14) and is rotatably connected to the extrusion block (19).

5. A pipeline installation assembly according to claim 4, characterized in that: The plurality of movable cavities (12) are provided with transverse grooves (22) on both sides of the push block (15), and the two transverse grooves (22) are movably plugged into the push block (15); the plurality of movable cavities (12) are provided with oblique grooves (21) on both sides of the conversion plate (18), and the two oblique grooves (21) are movably abutted against the conversion plate (18).

6. A pipeline installation assembly according to claim 5, characterized in that: The surface of the locking ring body (71) is provided with locking grooves (74) aligned with the locking opening (13) on one side of the plurality of extrusion grooves (73), and locking blocks (76) are telescopically arranged in the plurality of locking grooves (74).

7. A pipeline installation assembly according to claim 6, characterized in that: The surface of the locking ring body (71) is provided with unlocking bolts (75) on both sides of the multiple locking grooves (74), the outer surface of the locking ring body (71) is provided with multiple alignment blocks (72) around it, and the inner surface of the locking ring body (71) is provided with sockets (77) at the positions of the multiple push blocks (15).

8. A pipeline installation assembly according to claim 7, characterized in that: Alignment openings (20) are provided in the two annular grooves (9) at positions of the plurality of alignment blocks (72), and unlocking push blocks (23) are fixedly provided in the two annular grooves (9) at positions at the bottoms of the plurality of locking openings (13), and the plurality of unlocking push blocks (23) are aligned one by one with the plurality of unlocking bolts (75).

9. A pipeline installation assembly according to claim 8, characterized in that: The side surface of the pipe body (1) is provided with a second socket (24) at a position aligned with the plurality of first sockets (77) relative to the extrusion layer (6), and the inner walls of the plurality of first sockets (77) and the second sockets (24) are movably connected to the push block (15).

10. A pipeline installation assembly according to claim 9, characterized in that: The side surface of the pipe body (1) is located at one end of the extrusion layer (6) and is plugged into the annular groove (9), and the wear-resistant layer is located at the extrusion layer (6) and is aligned with the center of the extrusion concave surface (11).

Images