Drain anti-settling node

Abstract

The utility model discloses a kind of drainage pipe anti-settlement nodes, solve the problem that uneven settlement leads to pipeline interface to be disconnected or leak. It includes pipeline, corrugated pipe joint, rigid circular ring, first constraint fastener, second constraint fastener and bolt assembly, the end of pipeline and corrugated pipe joint has flange ring and butt joint connection, after butt joint, corrugated pipe joint is located between two pipelines, and, rigid circular ring is attached and set at the inner end surface of the flange ring of corrugated pipe joint, first constraint fastener and second constraint fastener are paired and set, wherein, first constraint fastener is installed at the end of one pipeline, second constraint fastener is installed at the end of another pipeline, after installation, first constraint fastener and second constraint fastener have constraint in the axial direction and circumference of pipeline, bolt assembly is fastened and connected to pipeline and corrugated pipe joint, meet the requirement of pipeline axial expansion and angular deflection.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for anti-settlement joints in drainage pipes. Background Technology

[0002] When designing anti-settlement joints for steel-plastic composite drainage pipes, it is necessary to comprehensively consider material properties, connection methods, foundation treatment, and flexible compensation measures. Depending on the connection method, it can be divided into double-sealed socket connections and flange connections. Double-sealed socket connections refer to a double-sealed design using a rubber ring and heat-shrink sleeve, allowing axial displacement (5~15mm) and slight angular deflection, preventing joint detachment or leakage due to uneven settlement. Flange connections refer to direct connections using flanged pipes.

[0003] For example, CN202421870324.6 discloses a sealing structure for the butt joint of a concrete drainage pipe, relating to the field of concrete drainage pipe construction. The structure includes a pipe body, with a connecting component installed at the joint. The connecting component includes a groove and a convex ring. The groove is located at the front end of the pipe body, and the convex ring is cast at the rear end. The inner ring of the groove is filled with a first sealing ring, and the outer ring of the convex ring is fitted with a second sealing ring. A connecting sleeve is installed at the joint of the pipe body. The outer periphery of the connecting sleeve has a first connecting groove near the rear end, and the inner ring of the connecting sleeve has a second connecting groove near the front end. The inner ring diameters at the front and rear ends of the pipe body are equal, and the inner ring diameter of the groove is equal to the outer ring diameter of the convex ring.

[0004] The existing anti-settlement nodes have relatively small axial displacement and small angular deflection, so it is necessary to develop a new connection structure with greater practicality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a drainage pipe anti-settlement joint, which allows for axial displacement (0~30mm) and deflection at a larger angle, thus solving the problem of pipe joint detachment or leakage caused by uneven settlement.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A drainage pipe anti-settlement joint includes a pipe, a corrugated pipe joint, a rigid ring, a first constraint fastener, a second constraint fastener, and a bolt assembly. Its features include: the ends of the pipe and the corrugated pipe joint have flange rings and are butt-connected; the corrugated pipe joint, after butt-connection, is located between two pipes; a rigid ring is fitted onto the inner end face of the flange ring of the corrugated pipe joint; the first and second constraint fasteners are paired, with the first constraint fastener installed at the end of one pipe and the second constraint fastener installed at the end of the other pipe; the installed first and second constraint fasteners provide axial and circumferential constraints on the pipes; and the bolt assembly securely connects the pipe and the corrugated pipe joint, satisfying the requirements for axial expansion and contraction and angular deflection of the pipes.

[0008] The first restraint fastener includes a first mounting part and a first snap-fit ​​part. The first mounting part is annular and has bolt holes arranged at equal intervals along the circumference. The first snap-fit ​​part is located on the outer edge of the first mounting part and has N first claws on the outer side of the first snap-fit ​​part. The first claws have inwardly turned first snap edges. A rubber pad is provided on the inner side of the first mounting part. The rubber pad provides a buffer for the second restraint member and avoids rigid collision.

[0009] The rubber pad is intermittently arranged in the circumferential direction of the mounting part to form a buffer component.

[0010] The rubber pad can also be a continuous ring.

[0011] The edge of the No. 1 card extends inward to a depth of about 3-4 centimeters.

[0012] The second constraint fastener includes a second mounting part and a second snap-fit ​​part. The second mounting part is annular and has bolt holes arranged at equal intervals along the circumference. The second snap-fit ​​part is located on the outer edge of the second mounting part. N second-level claws are provided on the outer side of the second snap-fit ​​part. The second-level claws have outward-facing second-level claw edges. A rubber block is provided on the outer side of the second mounting part. When the two pipes undergo axial displacement, the rubber block will provide a buffer for the first constraint member to avoid rigid collision.

[0013] The edge of the second card extends outward to a depth of about 3-4 centimeters.

[0014] The rigid ring and the first and second constraint fasteners are metal parts.

[0015] The value of N is 8. During the installation of the first and second constraint fasteners, the two constraint fasteners are inserted into each other and rotated 45° so that the first and second constraint fasteners form a constraint in the axial direction.

[0016] In the initial installation state, the maximum extension stroke L between the two constraint fasteners is 30 mm.

[0017] The corrugated pipe joint has multiple corrugated rings and sufficient deformation space.

[0018] The beneficial effects of this utility model are:

[0019] The implementation of this technology forms a semi-rigid circumferential constraint on the outside of the joint through the constraint fastener, which avoids bending at the joint. The expansion gap between the corrugated pipe joint and the constraint fastener allows the node to have both axial constraint and expansion space, thus meeting the axial expansion requirements. Ultimately, this solves the problem of pipe joint detachment or leakage caused by uneven settlement at the foundation of the pipeline. The following is a detailed description in the embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the construction and installation of drainage pipes.

[0021] Figure 2 This is a three-dimensional view of the anti-settlement node of the drainage pipe, showing a partial cross-section.

[0022] Figure 3 This is a cross-sectional view of the settlement-resistant node of the drainage pipe.

[0023] Figure 4 This is a 3D view of pipe 10.

[0024] Figure 5 This is a three-dimensional view of the bellows connector 20.

[0025] Figure 6 This is a cross-sectional view of the pipe wall of the corrugated pipe joint 20.

[0026] Figure 7 This is a three-dimensional view of the rigid circular ring 30.

[0027] Figure 8 This is a perspective view of the first constraint fastener 40, showing the front axle side view.

[0028] Figure 9 This is a perspective view of the first constraint fastener 40, showing the rear axle side view.

[0029] Figure 10 for Figure 8 This is a demonstration of a technological alternative.

[0030] Figure 11 This is a perspective view of the second constraint fastener 50, showing the front axle side view.

[0031] Figure 12 This is a perspective view of the second constraint fastener 50, showing the front axle side view.

[0032] In the picture:

[0033] 10. Pipelines;

[0034] 20. Corrugated pipe fitting;

[0035] 30. Rigid circular ring;

[0036] 40. No. 1 restraint fastener; 41. No. 1 mounting part; 42. No. 1 snap-fit ​​part; 43. No. 1 clamping claw; 44. Rubber pad.

[0037] 50. No. 2 restraint fastener; 51. No. 2 mounting part; 52. No. 2 snap-fit ​​part; 53. No. 2 clamping claw; 54. Rubber block;

[0038] 60. Bolt assembly. Detailed Implementation

[0039] This embodiment details a drainage pipe anti-settlement joint, including a pipe 10, a corrugated pipe joint 20, a rigid ring 30, a first constraint fastener 40, a second constraint fastener 50, and a bolt assembly 60. This embodiment will be described in conjunction with the appendix to the instruction manual. Figure 1 To be continued Figure 12 Please provide a detailed explanation.

[0040] In this embodiment, the end of the pipe 10 is a connecting end, which has a flange ring with 16 bolt holes arranged at equal intervals along the circumference. The corresponding bellows joint 20 also has flange rings at both ends, with 16 bolt holes arranged at equal intervals along the circumference. The pipe 10 and the bellows joint 20 are fastened together using a bolt assembly 60.

[0041] There are two rigid rings 30, which are installed on the inner end face of the flange ring of the bellows joint 20 to clamp and strengthen the connection point of the bellows joint 20, thereby improving the connection strength between the pipe 10 and the bellows joint 20.

[0042] Constraint fastener 40 and constraint fastener 50 are paired and installed, with constraint fastener 40 installed at the end of one pipe 10 and constraint fastener 50 installed at the end of another pipe 10. After installation, constraint fastener 40 and constraint fastener 50 form constraints in the axial and circumferential directions, providing sufficient circumferential and axial constraints to meet the requirements of axial expansion and contraction and angular deflection of pipe 10.

[0043] No. 1 restraint fastener 40, for reference Figure 8 and Figure 9The device includes a mounting portion 41 and a snap-fit ​​portion 42. The mounting portion 41 is annular and has 16 bolt holes evenly spaced circumferentially. The snap-fit ​​portion 42 is located on the outer edge of the mounting portion 41 and is a unidirectional extension structure. Multiple latches 43 are provided on the outer side of the snap-fit ​​portion 42, away from the mounting portion 41. Each latch 43 is formed by multiple notches and has an inwardly turned latching edge extending approximately 3-4 cm inwards. A rubber pad 44 is provided on the inner side of the mounting portion 41, at the point of contact with the snap-fit ​​portion 42. This rubber pad 44 is intermittently arranged in the annular direction of the mounting portion, forming a buffer component. Further alternatives are described below. Figure 10 The rubber pad 44 can also be a continuous circular ring. The installation method is generally to bond it with special adhesive. After installation, the rubber pad 44 provides axial collision buffer for the second constraint fastener 50. That is, when the two pipes 10 undergo axial displacement, the rubber pad 44 will provide buffer for the second constraint member to avoid rigid collision.

[0044] Second-grade restraint fastener 50, reference Figure 11 and Figure 12 The device includes a second mounting part 51 and a second snap-fit ​​part 52. The second mounting part 51 is annular and has 16 bolt holes arranged at equal intervals along the circumference. The second snap-fit ​​part 52 is located on the outer edge of the second mounting part 51 and is a unidirectional extension structure. Eight second-stage latches 53 are provided on the outer side of the second snap-fit ​​part 52, that is, on the side away from the second mounting part 51. Each second-stage latch 53 is formed by multiple notches and has an outwardly turned second-stage latching edge, which extends outward to a depth of approximately 3-4 cm. A rubber block 54 is provided on the outer side of the second mounting part 51, at the overlap with the second-stage latching edge. The rubber block 54 is intermittently arranged in the annular direction of the mounting part, forming a buffer component. The installation method is generally to use special adhesive to bond the connection. After installation, the rubber block 54 provides an axial collision buffer for the first constraint fastener 40. That is, when the two pipes 10 undergo axial displacement, the rubber block 54 will provide a buffer for the first constraint component to avoid rigid collision.

[0045] In this embodiment, the rigid ring and the first and second constraint fasteners are metal components and are treated with anti-corrosion measures, or are made of corrosion-resistant stainless steel. The rigid first and second constraint fasteners have stronger guiding performance and compensate for the problem of rapid deformation of the pipe joint caused by settlement, thus preventing joint failure and leakage.

[0046] In this embodiment, the corrugated pipe joint is a steel-plastic composite component, and the pipe is a steel-plastic pipe. Its structure can be any existing steel-plastic pipe. For example, the wall of the corrugated pipe joint is provided with steel wire mesh or steel wire rings so that the corrugated pipe has sufficient circumferential support.

[0047] It is important to note that during construction, especially during the installation of the first and second constraint fasteners, the two constraint fasteners should be inserted together and rotated 45°. This rotation creates axial constraint between the first and second constraint fasteners. In the initial installation state, the maximum expansion / contraction L between the two constraint fasteners is 30 mm, providing sufficient expansion / contraction space within this 30 mm range, while also providing a locking effect after reaching the maximum expansion / contraction. This constraint, along with the buffering effect created by the rubber pad 44 and rubber block 54, compensates for the insufficient strength at the bellows joint 20, thus strengthening the bellows joint 20 on the outer side.

[0048] In this embodiment, the number of claws in the first and second constraint fasteners are both eight, and the number of bolt holes in the flange ring is half of the number of bolt holes. That is, the number of bolt holes is an integer multiple of the number of claws, such as one, two, or three times, to meet the requirement of quick fixation after rotation.

[0049] The bellows joint 20 in this embodiment has multiple bellows rings and sufficient deformation space.

[0050] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Without departing from the spirit of the present utility model, all modifications and improvements to the present utility model by those skilled in the art should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A drainage pipe anti-settlement joint, comprising a pipe (10), a corrugated pipe joint (20), a rigid ring (30), a first restraint fastener (40), a second restraint fastener (50), and a bolt assembly (60), characterized in that: The ends of the pipe (10) and the corrugated pipe joint (20) have flange rings and are connected together. The corrugated pipe joint (20) after being connected is located between the two pipes (10). A rigid ring (30) is fitted on the inner end face of the flange ring of the corrugated pipe joint (20). The first constraint fastener (40) and the second constraint fastener (50) are paired and set. The first constraint fastener (40) is installed at the end of one pipe (10), and the second constraint fastener (50) is installed at the end of another pipe (10). The first constraint fastener (40) and the second constraint fastener after installation have constraints on the axial and circumferential directions of the pipe (10). The bolt assembly (60) fastens the pipe (10) and the corrugated pipe joint (20) together.

2. The anti-settlement joint for drainage pipes according to claim 1, characterized in that, The first restraint fastener (40) includes a first mounting part (41) and a first snap-fit ​​part (42). The first mounting part (41) is annular and has bolt holes arranged at equal intervals along the circumference. The first snap-fit ​​part (42) is located on the outer edge of the first mounting part (41), and N first snap claws (43) are provided on the outer side of the first snap-fit ​​part (42). The first snap claws (43) have inwardly turned first snap edges, and rubber pads (44) are provided on the inner side of the first mounting part (41).

3. The anti-settlement joint for drainage pipes according to claim 2, characterized in that, The rubber pad (44) is discontinuously arranged in the circumferential direction of the mounting part.

4. The anti-settlement joint for drainage pipes according to claim 3, characterized in that, The rubber pad (44) is a continuous annular shape.

5. The anti-settlement joint for drainage pipes according to claim 4, characterized in that, The edge of the No. 1 card extends inward to a depth of 3 to 4 centimeters.

6. The anti-settlement joint for drainage pipes according to claim 1, characterized in that, The second restraint fastener (50) includes a second mounting part (51) and a second snap-fit ​​part (52). The second mounting part (51) is annular and has bolt holes arranged at equal intervals along the circumference. The second snap-fit ​​part (52) is located on the outer edge of the second mounting part (51). N second snap claws (53) are provided on the outer side of the second snap-fit ​​part (52). The second snap claws (53) have outwardly turned second snap edges. A rubber block (54) is provided on the outer side of the second mounting part (51).

7. The anti-settlement joint for drainage pipes according to claim 6, characterized in that, The edge of the second card extends outward to a depth of about 3 to 4 centimeters.

8. The anti-settlement joint for drainage pipes according to claim 7, characterized in that, The rigid ring and the first and second constraint fasteners are metal parts.

9. The anti-settlement joint for drainage pipes according to claim 8, characterized in that, In the initial installation state, the maximum extension stroke L between the two constraint fasteners is 30 mm.

10. The anti-settlement joint for drainage pipes according to claim 2 or 6, characterized in that, The value of N is 8. During the installation of the first and second constraint fasteners, the two constraint fasteners are inserted into each other and rotated 45° so that the first and second constraint fasteners form a constraint in the axial direction.

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