Pipeline connecting structure of blow-off pipeline

Abstract

The utility model is applicable to the field of blow-off pipelines, and provides a pipeline connecting structure of blow-off pipelines, which comprises a sealing fastening pipe assembly used for connecting a blow-off pipeline I and a blow-off pipeline II, and the sealing fastening pipe assembly is connected with an inner locking pipe I and an inner locking pipe II; a limiting ring set movably penetrates through the first inner locking pipe in a penetrating mode. A plurality of limiting convex rings are movably inserted into the two sides of the sealing fastening pipe assembly in a penetrating manner; a mechanical locking rod is assembled in the sealing fastening pipe assembly, a plurality of pressing plates are arranged on the periphery of the sealing fastening pipe assembly, and the pressing plates are movably inserted into the sealing fastening pipe assembly in a penetrating mode through springs. A mechanical locking rod is triggered to push a plurality of limiting convex rings and a plurality of limiting ring groups to perform mechanical sealing locking while the two ends of the joint of the blow-off pipeline I and the blow-off pipeline II are locked through a locking hoop; the blow-off pipeline I and the blow-off pipeline II can be quickly detached and separated by releasing the sealing fastening pipe assembly; and on the basis that high-stability mechanical high-sealing locking is guaranteed, follow-up quick disassembly for replacement and maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of sewage pipes, in particular to a pipe connection structure of sewage pipes. Background Art

[0002] Sewer pipes are pipes and their ancillary facilities that collect and discharge sewage, wastewater, and stormwater, including main pipes, lateral pipes, and pipes to treatment plants. Municipal sewer pipes are pipes used to discharge sewage within a city or municipal area; these pipes are usually laid underground and transport sewage from homes, commercial buildings, and other sources to sewage treatment plants or drainage systems.

[0003] During the laying and maintenance of sewage pipes, it is necessary to connect and assemble the separated sewage pipes together. Some existing methods for connecting pipes are to directly pour concrete. Although this can improve the sealing and stability, it is not convenient for subsequent maintenance and repair. For example, a Chinese patent for an anti-seepage sewage pipe connection structure in the prior art (authorization announcement number is CN214500379U) also directly pours concrete after the sewage pipes are connected.

[0004] Based on this, a pipe connection structure for sewage pipes is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the embodiments of the utility model is to provide a pipe connection structure for a sewage pipe, aiming to solve the problem that some existing methods for pipe connection are direct pouring of concrete connections, which can improve sealing and stability but are not convenient for subsequent maintenance and repair.

[0006] Specifically: A pipe connection structure of a sewage pipe, comprising a sealing fastening pipe assembly for connecting a sewage pipe 1 and a sewage pipe 2, wherein an inner locking pipe 1 and an inner locking pipe 2 are respectively connected on both sides of the sealing fastening pipe assembly; a plurality of limit ring groups are movably inserted on the inner locking pipe 1; a plurality of limit convex rings are movably inserted on both sides of the sealing fastening pipe assembly; a plurality of mechanical locking rods are assembled inside the sealing fastening pipe assembly, a plurality of pressing plates are arranged around the sealing fastening pipe assembly, and the plurality of pressing plates are movably inserted inside the sealing fastening pipe assembly through springs, the plurality of mechanical locking rods correspond to the plurality of pressing plates one by one, and the pressing plates are connected to the mechanical locking rods;

[0007] During the docking process of sewage discharge pipe 1 and sewage discharge pipe 2, inner locking pipe 1 is used to penetrate inside sewage discharge pipe 1, and inner locking pipe 2 is used to penetrate inside sewage discharge pipe 2; a locking hoop is detachably sleeved outside the sealing and fastening pipe assembly to tightly sleeve the sealing and fastening pipe assembly, and the pressing plate is pushed inward to trigger the mechanical locking rod to push multiple limiting ring groups to respectively seal and lock inner locking pipe 1 and inner locking pipe 2 inside sewage discharge pipe 1 and sewage discharge pipe 2; and trigger the mechanical locking rod to push multiple limiting convex rings to seal at the ends of sewage discharge pipe 1 and sewage discharge pipe 2; realizing further mechanical sealing and locking of multiple limiting convex rings and limiting ring groups by triggering the mechanical locking rod while tightly locking the two ends of the connection between sewage discharge pipe 1 and sewage discharge pipe 2 through the locking hoop; after removing the sealing and fastening pipe assembly, sewage discharge pipe 1 and sewage discharge pipe 2 can be quickly disassembled and separated; ensuring convenient subsequent quick disassembly for replacement and maintenance on the basis of high-stability mechanical high-sealing locking.

[0008] The technical solution of the present application will be further described below:

[0009] In one embodiment, sewage discharge pipe 1 and sewage discharge pipe 2 have the same structure; a snap ring is sleeved outside the end of sewage discharge pipe 1, and the snap ring is integrally connected to sewage discharge pipe 1.

[0010] Furthermore, a plurality of sealing annular grooves 1 are provided in sewage discharge pipe 1 in cooperation with the limiting ring group, and the plurality of sealing annular grooves 1 are in one-to-one correspondence with the plurality of limiting ring groups; the sizes of the sealing annular grooves 1 and the limiting ring group match, and the limiting ring group is used to movably penetrate inside the sealing annular grooves 1.

[0011] Furthermore, a plurality of sealing annular grooves 2 are provided at the end of sewage discharge pipe 1 in cooperation with the limiting convex ring, and the plurality of sealing annular grooves 2 are in one-to-one correspondence with the plurality of limiting convex rings; the sizes of the sealing annular grooves 2 and the limiting convex ring match, and the limiting convex ring is used to movably penetrate inside the sealing annular grooves 2.

[0012] In one embodiment, inner locking pipe 1 and inner locking pipe 2 have the same structure; a plurality of insertion cavities 1 are provided on the pipe wall of inner locking pipe 1, and the plurality of insertion cavities 1 are annularly arrayed along the pipe wall of inner locking pipe 1; the opening direction of the insertion cavities 1 on the pipe wall of inner locking pipe 1 is parallel to the axial center line of inner locking pipe 1.

[0013] Furthermore, the limiting ring group is composed of a plurality of arc-shaped limiting blocks, and the plurality of arc-shaped limiting blocks are annularly arrayed along the pipe wall of inner locking pipe 1; the plurality of arc-shaped limiting blocks are in one-to-one correspondence with the plurality of mechanical locking rods; the arc-shaped limiting blocks movably penetrate the pipe wall of inner locking pipe 1.

[0014] Furthermore, the sealed fastening pipe assembly includes a connecting pipe integrally connected between the inner locking pipe one and the inner locking pipe two, and the connecting pipe is in a through state with the inner locking pipe one and the inner locking pipe two; a plurality of limiting convex rings are distributed in an array on both sides of the connecting pipe; the connecting pipe is provided with a plurality of insertion cavities two on its pipe wall, and the plurality of insertion cavities two correspond to the plurality of mechanical locking rods one by one; the insertion cavity one and the insertion cavity two are linearly distributed and communicate with each other; a plurality of pressing plates are distributed in an annular array around the outside of the connecting pipe, and the pressing plates are movably inserted into the insertion cavities three opened on the connecting pipe, and the insertion cavity three communicates with the insertion cavity two and is perpendicularly distributed.

[0015] Still further, the mechanical locking rod includes a vertical locking rod and a horizontal locking rod, and the vertical locking rod and the horizontal locking rod are connected by a unit locking member; a plurality of unit locking members are provided on both the vertical locking rod and the horizontal locking rod.

[0016] The vertical locking rod is movably inserted into the insertion cavity three, and the plurality of unit locking members on the vertical locking rod correspond to the plurality of limiting convex rings one by one and are respectively fixed on the plurality of limiting convex rings; the horizontal locking rod is movably inserted into the insertion cavity one and the insertion cavity two, and the plurality of unit locking members on the horizontal locking rod correspond to the plurality of limiting ring groups one by one in the column direction, and the plurality of mechanical locking rods correspond to the plurality of arc-shaped limiting blocks one by one in the radial direction; the unit locking members on the horizontal locking rod are correspondingly fixed on the arc-shaped limiting blocks.

[0017] The unit locking member includes an active push plate and a driven push plate, and the active push plate is provided with an inclined slot; an inclined insertion plate is fixed on the driven push plate; the inclination and size of the inclined insertion plate and the inclined slot are both matched.

[0018] Therefore, the locking hoop is used to tightly sleeve and fasten the sealed fastening pipe assembly to lock the snap ring at the connection of the first sewage discharge pipe and the second sewage discharge pipe. When the locking hoop is tightened inward, it will drive the pressing plate to move inward. The pressing plate will push the vertical locking rod, and the vertical locking rod will drive the active push plate on the vertical locking rod. The active push plate uses the inclined slot to act on the inclined insertion plate to push the driven push plate on the vertical locking rod to extend and penetrate into the second sealing annular groove. Then, the vertical locking rod uses the principle similar to the above unit locking part to push the horizontal locking rod inward. The horizontal locking rod will drive the active push plate on the horizontal locking rod. The active push plate uses the inclined slot to act on the inclined insertion plate to push the driven push plate on the horizontal locking rod to extend and penetrate into the first sealing annular groove, completing the use of the pressing plate to trigger the mechanical locking rod to push multiple limiting ring groups to respectively seal and lock the first inner locking pipe and the second inner locking pipe inside the first sewage discharge pipe and the second sewage discharge pipe; and trigger the mechanical locking rod to push multiple limiting convex rings to seal the ends of the first sewage discharge pipe and the second sewage discharge pipe; realizing that while locking the two ends of the connection of the first sewage discharge pipe and the second sewage discharge pipe through the locking hoop, triggering the mechanical locking rod to push multiple limiting convex rings and limiting ring groups for further mechanical seal locking; after removing the sealed fastening pipe assembly, the first sewage discharge pipe and the second sewage discharge pipe can be quickly disassembled and separated; ensuring easy subsequent quick disassembly for replacement and repair on the basis of high-stability mechanical high-seal locking.

[0019] Compared with the prior art, for the pipe connection structure of the sewage discharge pipe of the present utility model, during the docking process of the first sewage discharge pipe and the second sewage discharge pipe, the first inner locking pipe is inserted into the first sewage discharge pipe, and the second inner locking pipe is inserted into the second sewage discharge pipe; then, the locking hoop is used to tightly sleeve and fasten the sealed fastening pipe assembly and lock the two ends of the connection of the first sewage discharge pipe and the second sewage discharge pipe; when the locking hoop is tightened inward, it will drive the pressing plate to move inward, completing the use of the pressing plate to trigger the mechanical locking rod to push multiple limiting ring groups to respectively seal and lock the first inner locking pipe and the second inner locking pipe inside the first sewage discharge pipe and the second sewage discharge pipe; and trigger the mechanical locking rod to push multiple limiting convex rings to seal the ends of the first sewage discharge pipe and the second sewage discharge pipe; realizing that while locking the two ends of the connection of the first sewage discharge pipe and the second sewage discharge pipe through the locking hoop, triggering the mechanical locking rod to push multiple limiting convex rings and limiting ring groups for further mechanical seal locking; after removing the sealed fastening pipe assembly, the first sewage discharge pipe and the second sewage discharge pipe can be quickly disassembled and separated; ensuring easy subsequent quick disassembly for replacement and repair on the basis of high-stability mechanical high-seal locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 Structural schematic diagram of the pipeline connection structure of the sewage discharge pipeline of the present invention;

[0022] Figure 2 For Figure 1 Cross-sectional structural schematic diagram at the locking hoop;

[0023] Figure 3 For Figure 1 Structural schematic diagram after removing the locking hoop;

[0024] Figure 4 For Figure 1 Structural schematic diagram of the inner locking pipe one in ;

[0025] Figure 5 For Figure 3 Structural schematic diagram of the sealing and fastening pipe assembly in ;

[0026] Figure 6 Demonstration diagram of the assembly of the pipeline connection structure of the sewage discharge pipeline of the present invention with the sewage discharge pipeline one and the sewage discharge pipeline two;

[0027] Figure 7 Demonstration diagram of the driving action of the mechanical locking rod with multiple limiting convex rings and multiple arc-shaped limiting blocks in the present invention;

[0028] Figure 8 For Figure 7 Structural schematic diagram of the mechanical locking rod in ;

[0029] Figure 9 For Figure 8 Structural schematic diagram of the unit locking piece in.

[0030] In the reference numerals:

[0031] 100 - Locking hoop;

[0032] 200 - Inner locking pipe one; Limiting ring group 210, arc-shaped limiting block 220, penetration cavity one 230;

[0033] 300 - Inner locking pipe two;

[0034] 400 - Sealing and fastening pipe assembly; Pressing plate 410, penetration cavity two 420, connecting pipe 430, limiting convex ring 440;

[0035] 500 - Sewer pipe 1; snap ring 510, sealing annular groove 1 520, sealing annular groove 2 530;

[0036] 600 - Sewer pipe 2;

[0037] 700 - Mechanical locking rod; vertical locking rod 710, horizontal locking rod 720, unit locking member 730; driven push plate 731, active push plate 732, inclined insertion plate 733, inclined insertion slot 734. Detailed implementation mode

[0038] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0039] In the embodiment of the present utility model, as Figures 1-7 shown: A pipe connection structure for sewer pipes includes a sealing and fastening pipe assembly 400 for connecting sewer pipe 1 500 and sewer pipe 2 600, and an inner locking pipe 1 200 and an inner locking pipe 2 300 are respectively connected to both sides of the sealing and fastening pipe assembly 400;

[0040] It should be added that: Sewer pipe 1 500 and sewer pipe 2 600 are connected to the municipal pipe network and are used for normal sewage discharge;

[0041] A plurality of limit ring groups 210 are movably inserted through the inner locking pipe 1 200; A plurality of limit convex rings 440 are movably inserted through both sides of the sealing and fastening pipe assembly 400;

[0042] A plurality of mechanical locking rods 700 are assembled inside the sealing and fastening pipe assembly 400. A plurality of pressing plates 410 are arranged around the sealing and fastening pipe assembly 400. A plurality of pressing plates 410 are all movably inserted through the inside of the sealing and fastening pipe assembly 400 through springs. A plurality of mechanical locking rods 700 and a plurality of pressing plates 410 are in one-to-one correspondence, and the pressing plates 410 are connected to the mechanical locking rods 700;

[0043] During the docking process of sewage discharge pipe 1 - 500 and sewage discharge pipe 2 - 600, inner locking pipe 1 - 200 is used to penetrate inside sewage discharge pipe 1 - 500, and inner locking pipe 2 - 300 is used to penetrate inside sewage discharge pipe 2 - 600; a locking hoop 100 is detachably sleeved outside the sealing and fastening pipe assembly 400 to tightly sleeve and fasten the sealing and fastening pipe assembly 400, and push the pressing plate 410 inward to trigger the mechanical locking rod 700 to push multiple limiting ring groups 210 to respectively seal and lock inner locking pipe 1 - 200 and inner locking pipe 2 - 300 inside sewage discharge pipe 1 - 500 and sewage discharge pipe 2 - 600; and trigger the mechanical locking rod 700 to push multiple limiting convex rings 440 to seal at the ends of sewage discharge pipe 1 - 500 and sewage discharge pipe 2 - 600;

[0044] It should be supplemented and explained that: the locking hoop 100 is a prior art, and its detailed structure can be obtained from existing literature and periodicals, and can also be directly purchased on the market, or the components can be purchased on the market for assembly, etc.; it is not what the present invention intends to protect, and will not be elaborated in detail here;

[0045] Therefore, for some existing methods of pipe connection, which are to directly pour concrete for connection, although this can improve sealing and stability, it is not convenient for subsequent maintenance and repair; the present application can achieve:

[0046] During the docking process of sewage discharge pipe 1 - 500 and sewage discharge pipe 2 - 600, inner locking pipe 1 - 200 penetrates inside sewage discharge pipe 1 - 500, and inner locking pipe 2 - 300 penetrates inside sewage discharge pipe 2 - 600; then, the locking hoop 100 is used to tightly sleeve and fasten the sealing and fastening pipe assembly 400, and lock both ends of the connection between sewage discharge pipe 1 - 500 and sewage discharge pipe 2 - 600; when the locking hoop 100 tightens and fixes inward, it will also push the pressing plate 410 inward, completing the use of the pressing plate 410 to trigger the mechanical locking rod 700 to push multiple limiting ring groups 210 to respectively seal and lock inner locking pipe 1 - 200 and inner locking pipe 2 - 300 inside sewage discharge pipe 1 - 500 and sewage discharge pipe 2 - 600; and trigger the mechanical locking rod 700 to push multiple limiting convex rings 440 to seal at the ends of sewage discharge pipe 1 - 500 and sewage discharge pipe 2 - 600; realizing further mechanical sealing and locking of multiple limiting convex rings 440 and limiting ring groups 210 by triggering the mechanical locking rod 700 while locking both ends of the connection between sewage discharge pipe 1 - 500 and sewage discharge pipe 2 - 600 by the locking hoop 100; after removing the sealing and fastening pipe assembly 400, sewage discharge pipe 1 - 500 and sewage discharge pipe 2 - 600 can be quickly disassembled and separated; ensuring convenient subsequent quick disassembly for replacement and repair on the basis of high - stability and high - sealing mechanical locking.

[0047] In the embodiment of the present utility model, as Figure 6As shown: The first sewage discharge pipe 500 and the second sewage discharge pipe 600 have the same structure; a snap ring 510 is sleeved outside the end of the first sewage discharge pipe 500, and the snap ring 510 is integrally connected to the first sewage discharge pipe 500.

[0048] Further, as Figure 6 shown: A plurality of first sealing annular grooves 520 are formed in the first sewage discharge pipe 500 in cooperation with the limiting ring group 210, and the plurality of first sealing annular grooves 520 are in one-to-one correspondence with the plurality of limiting ring groups 210; the sizes of the first sealing annular grooves 520 and the limiting ring group 210 match, and the limiting ring group 210 is used to movably penetrate inside the first sealing annular grooves 520.

[0049] As Figure 6 shown: A plurality of second sealing annular grooves 530 are formed in the first sewage discharge pipe 500 at its end in cooperation with the limiting convex ring 440, and the plurality of second sealing annular grooves 530 are in one-to-one correspondence with the plurality of limiting convex rings 440; the sizes of the second sealing annular grooves 530 and the limiting convex ring 440 match, and the limiting convex ring 440 is used to movably penetrate inside the second sealing annular grooves 530.

[0050] In the embodiment of the present invention, as Figure 4 shown: The first inner locking pipe 200 and the second inner locking pipe 300 have the same structure; a plurality of first insertion cavities 230 are formed in the pipe wall of the first inner locking pipe 200, and the plurality of first insertion cavities 230 are annularly arrayed along the pipe wall of the first inner locking pipe 200; the opening direction of the first insertion cavities 230 on the pipe wall of the first inner locking pipe 200 is parallel to the axial center line of the first inner locking pipe 200.

[0051] Further, as Figure 4 shown: The limiting ring group 210 is composed of a plurality of arc-shaped limiting blocks 220, and the plurality of arc-shaped limiting blocks 220 are annularly arrayed along the pipe wall of the first inner locking pipe 200; the plurality of arc-shaped limiting blocks 220 are in one-to-one correspondence with the plurality of mechanical locking rods 700; the arc-shaped limiting blocks 220 movably penetrate through the pipe wall of the first inner locking pipe 200.

[0052] In the embodiment of the present invention, as Figure 5 and Figure 6 shown: The sealed fastening pipe assembly 400 includes a connecting pipe 430, the connecting pipe 430 is integrally connected between the first inner locking pipe 200 and the second inner locking pipe 300, and the connecting pipe 430 is in communication with the first inner locking pipe 200 and the second inner locking pipe 300;

[0053] A plurality of limiting convex rings 440 are distributed in an array on both sides of the connecting pipe 430; a plurality of second insertion cavities 420 are formed in the pipe wall of the connecting pipe 430, and the plurality of second insertion cavities 420 are in one-to-one correspondence with the plurality of mechanical locking rods 700; the first insertion cavity 230 and the second insertion cavity 420 are linearly distributed and communicate with each other;

[0054] A plurality of pressing plates 410 are distributed in an annular array around the outside of the connecting pipe 430. The pressing plates 410 are movably inserted into the third insertion cavity formed in the connecting pipe 430. The third insertion cavity communicates with the second insertion cavity 420 and is perpendicularly distributed to each other.

[0055] Furthermore, as Figures 7-9 shown: The mechanical locking rod 700 includes a vertical locking rod 710 and a horizontal locking rod 720. The vertical locking rod 710 and the horizontal locking rod 720 are connected by a unit locking member 730; a plurality of unit locking members 730 are provided on both the vertical locking rod 710 and the horizontal locking rod 720.

[0056] In the embodiment of the present invention, as Figures 7-9 shown: The vertical locking rod 710 is movably inserted into the third insertion cavity. The plurality of unit locking members 730 on the vertical locking rod 710 are in one-to-one correspondence with the plurality of limiting convex rings 440 and are respectively fixed on the plurality of limiting convex rings 440;

[0057] The horizontal locking rod 720 is movably inserted into the first insertion cavity 230 and the second insertion cavity 420. The plurality of unit locking members 730 on the horizontal locking rod 720 are in one-to-one correspondence with the plurality of limiting ring groups 210 in the column direction, and the plurality of mechanical locking rods 700 are in one-to-one correspondence with the plurality of arc-shaped limiting blocks 220 in the radial direction; the unit locking members 730 on the horizontal locking rod 720 are correspondingly fixed on the arc-shaped limiting blocks 220.

[0058] As Figure 9 shown: The unit locking member 730 includes an active push plate 732 (the active push plate 732 of the unit locking member 730 on the vertical locking rod 710 is integrally fixed on the vertical locking rod 710, and the active push plate 732 of the unit locking member 730 on the horizontal locking rod 720 is integrally fixed on the horizontal locking rod 720) and a driven push plate 731 (the driven push plate 731 of the unit locking member 730 on the vertical locking rod 710 is correspondingly fixed on the limiting convex ring 440, and the driven push plate 731 of the unit locking member 730 on the horizontal locking rod 720 is correspondingly fixed on the arc-shaped limiting block 220). An inclined slot 734 is formed in the active push plate 732; an inclined plug 733 is fixed on the driven push plate 731; the inclination and size of the inclined plug 733 and the inclined slot 734 are both matched.

[0059] The working principle of the present invention is:

[0060] It is fastened on the sleeved sealing and fastening pipe assembly 400 through the locking hoop 100 to lock the snap ring 510 at the connection of the first sewage discharge pipe 500 and the second sewage discharge pipe 600; when the locking hoop 100 is tightened inward, it will also push the pressing plate 410 inward. The pressing plate 410 will push the vertical locking rod 710, and the vertical locking rod 710 will drive the active push plate 732 on the vertical locking rod 710. The active push plate 732 acts on the inclined insertion plate 733 through the inclined slot 734 to push the driven push plate 731 on the vertical locking rod 710 to extend and penetrate into the inner part of the second sealing annular groove 530; the vertical locking rod 710 then uses the principle similar to the above-mentioned unit locking part 730 to push the horizontal locking rod 720 inward. The horizontal locking rod 720 will drive the active push plate 732 on the horizontal locking rod 720. The active push plate 732 acts on the inclined insertion plate 733 through the inclined slot 734 to push the driven push plate 731 on the horizontal locking rod 720 to extend and penetrate into the inner part of the first sealing annular groove 520, completing the use of the pressing plate 410 to trigger the mechanical locking rod 700 to push multiple limit ring groups 210 to respectively seal and lock the first inner locking pipe 200 and the second inner locking pipe 300 inside the first sewage discharge pipe 500 and the second sewage discharge pipe 600; and trigger the mechanical locking rod 700 to push multiple limit convex rings 440 to seal at the ends of the first sewage discharge pipe 500 and the second sewage discharge pipe 600; realizing that while locking both ends of the connection of the first sewage discharge pipe 500 and the second sewage discharge pipe 600 through the locking hoop 100, the mechanical locking rod 700 is triggered to push multiple limit convex rings 440 and limit ring groups 210 for further mechanical sealing and locking; after removing the sealing and fastening pipe assembly 400, the first sewage discharge pipe 500 and the second sewage discharge pipe 600 can be quickly disassembled and separated; ensuring convenient subsequent quick disassembly for replacement and repair on the basis of high-stability mechanical high-sealing locking.

[0061] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more. The present invention is described in detail in combination with the schematic diagrams. When detailing the embodiments of the present invention, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention here. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0062] In the description of the present invention, although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline connection structure for a sewage pipeline, comprising a sealed fastening pipe assembly (400) for connecting a first sewage pipeline (500) and a second sewage pipeline (600), and an inner locking pipe one (200) and an inner locking pipe two (300) are respectively connected to both sides of the sealed fastening pipe assembly (400); characterized in that, A plurality of limit ring groups (210) are movably inserted through the inner locking pipe one (200); a plurality of limit convex rings (440) are movably inserted through both sides of the sealed fastening pipe assembly (400); A plurality of mechanical locking rods (700) are assembled inside the sealed fastening pipe assembly (400), a plurality of pressing plates (410) are arranged around the sealed fastening pipe assembly (400), and a plurality of pressing plates (410) are movably inserted through the inside of the sealed fastening pipe assembly (400) through springs. The plurality of mechanical locking rods (700) and the plurality of pressing plates (410) are in one-to-one correspondence, and the pressing plate (410) is connected to the mechanical locking rod (700); During the docking process of the first sewage pipeline (500) and the second sewage pipeline (600), the inner locking pipe one (200) is used to be inserted into the first sewage pipeline (500), and the inner locking pipe two (300) is used to be inserted into the second sewage pipeline (600); a locking hoop (100) detachably sleeved outside the sealed fastening pipe assembly (400) is used to tightly sleeve the sealed fastening pipe assembly (400), and the pressing plate (410) is pushed inward to trigger the mechanical locking rod (700) to push the plurality of limit ring groups (210) to respectively seal and lock the inner locking pipe one (200) and the inner locking pipe two (300) inside the first sewage pipeline (500) and the second sewage pipeline (600); And trigger the mechanical locking rod (700) to push a plurality of limit convex rings (440) to seal at the ends of the first sewage pipeline (500) and the second sewage pipeline (600).

2. The pipeline connection structure of a sewage pipeline according to claim 1, characterized in that, The first sewage pipeline (500) and the second sewage pipeline (600) adopt the same structure; a snap ring (510) is sleeved outside the end of the first sewage pipeline (500), and the snap ring (510) is integrally connected to the first sewage pipeline (500).

3. The pipeline connection structure of a sewage pipeline according to claim 2, characterized in that, A plurality of sealed annular grooves one (520) are provided inside the first sewage pipeline (500) in cooperation with the limit ring groups (210), and the plurality of sealed annular grooves one (520) and the plurality of limit ring groups (210) are in one-to-one correspondence; the sizes of the sealed annular groove one (520) and the limit ring group (210) match, and the limit ring group (210) is used to be movably inserted into the sealed annular groove one (520).

4. The pipeline connection structure of a sewage pipeline according to claim 2, characterized in that, A plurality of sealed annular grooves two (530) are provided at the end of the first sewage pipeline (500) in cooperation with the limit convex rings (440), and the plurality of sealed annular grooves two (530) and the plurality of limit convex rings (440) are in one-to-one correspondence; the sizes of the sealed annular groove two (530) and the limit convex ring (440) match, and the limit convex ring (440) is used to be movably inserted into the sealed annular groove two (530).

5. A pipe connection structure for a sewage pipe according to claim 1, characterized in that, The inner locking tube one (200) and the inner locking tube two (300) have the same structure; a plurality of insertion cavities one (230) are formed in the tube wall of the inner locking tube one (200), and the plurality of insertion cavities one (230) are arranged in a circular array along the tube wall of the inner locking tube one (200); the opening direction of the insertion cavity one (230) on the tube wall of the inner locking tube one (200) is parallel to the axial center line of the inner locking tube one (200).

6. The pipe connection structure of a sewage pipe according to claim 5, characterized in that, The limiting ring group (210) is composed of a plurality of arc-shaped limiting blocks (220), and the plurality of arc-shaped limiting blocks (220) are arranged in a circular array along the tube wall of the inner locking tube one (200); The plurality of arc-shaped limiting blocks (220) are in one-to-one correspondence with the plurality of mechanical locking rods (700); the arc-shaped limiting blocks (220) are movably inserted into the tube wall of the inner locking tube one (200).

7. The pipeline connection structure of a sewage pipeline according to claim 5, wherein The sealing and fastening pipe assembly (400) includes a connecting pipe (430), and the connecting pipe (430) is integrally connected between the inner locking tube one (200) and the inner locking tube two (300), and the connecting pipe (430) is in communication with the inner locking tube one (200) and the inner locking tube two (300); A plurality of limiting convex rings (440) are arrayed on both sides of the connecting pipe (430); a plurality of insertion cavities two (420) are formed in the tube wall of the connecting pipe (430), and the plurality of insertion cavities two (420) are in one-to-one correspondence with the plurality of mechanical locking rods (700); the insertion cavity one (230) and the insertion cavity two (420) are linearly distributed and communicate with each other; A plurality of pressing plates (410) are annularly arrayed around the outside of the connecting pipe (430), and the pressing plates (410) are movably inserted into the insertion cavity three formed in the connecting pipe (430), and the insertion cavity three communicates with the insertion cavity two (420) and is perpendicularly distributed to each other.

8. A pipeline connection structure of a sewage pipeline according to claim 7, characterized in that, The mechanical locking rod (700) includes a vertical locking rod (710) and a horizontal locking rod (720), and the vertical locking rod (710) and the horizontal locking rod (720) are connected by a unit locking member (730); a plurality of unit locking members (730) are provided on both the vertical locking rod (710) and the horizontal locking rod (720).

9. The pipeline connection structure of a sewage pipeline according to claim 8, wherein The vertical locking rod (710) is movably inserted into the insertion cavity three, and the plurality of unit locking members (730) on the vertical locking rod (710) are in one-to-one correspondence with the plurality of limiting convex rings (440) and are respectively fixed on the plurality of limiting convex rings (440); The horizontal locking rod (720) is movably inserted into the first insertion cavity (230) and the second insertion cavity (420). A plurality of unit locking members (730) on the horizontal locking rod (720) correspond to a plurality of limiting ring groups (210) one by one in the axial direction, and a plurality of mechanical locking rods (700) correspond to a plurality of arc-shaped limiting blocks (220) one by one in the radial direction; the unit locking members (730) on the horizontal locking rod (720) are correspondingly fixed on the arc-shaped limiting blocks (220).

10. The pipeline connection structure of a sewage pipeline according to claim 9, characterized in that, The unit locking member (730) includes an active push plate (732) and a driven push plate (731). An inclined slot (734) is formed on the active push plate (732); an inclined insertion plate (733) is fixed on the driven push plate (731); the inclination and size of the inclined insertion plate (733) and the inclined slot (734) are both matched.

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