Pipeline connector repairing device

Abstract

The utility model discloses a pipeline interface repairing device which is used for sealing and reinforcing an interface of a pipeline and comprises a rigid ring adjusting assembly which is installed on the interface of the inner wall of the pipeline in a covering mode, the rigid ring adjusting assembly comprises an expansion ring and an adjusting wedge block, and the expansion ring is provided with a fracture. And the adjusting wedge block is clamped and embedded in the fracture of the expansion ring to change the distance between the fracture surfaces of the expansion ring, so that the outer contour size of the expansion ring is adjusted to enable the expansion ring to be tightly attached to the inner wall of the pipeline. According to the pipeline connector repairing device, impact operation such as punching on a pipeline is not needed, local structural damage to the pipeline is effectively avoided, the device covers the connector in the pipeline, the structure is stable, certain rigidity is achieved, the connecting strength of the pipeline connector can be enhanced, and dislocation resistance is achieved; and meanwhile, the device can completely cover a gap of a pipeline connector and is tightly attached to the inner wall of the pipeline for sealing, the sealing effect is good, and leakage at the pipeline connector can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline internal interface repair and reinforcement construction, in particular to a pipeline interface repair device. Background Art

[0002] With the continuous development of social urbanization, my country has carried out a large number of municipal pipe network construction projects such as water supply, drainage, and sewage diversion in underground space in recent years. At present, the construction of municipal pipe networks usually adopts pipe jacking construction, which is to install the pipe on the pipe jacking machine, and drive the pipe through the stratum through the pipe jacking machine to realize the burial of the pipe.

[0003] However, due to the complex strata and surrounding environment of underground space and the existence of many uncertainties, when carrying out pipe jacking construction, the pipe jacking machine is easily affected by the surrounding environment. For example, when the pipe jacking machine passes through the soft upper and hard lower strata, there will be obstacles in front and the posture of the pipe jacking machine is uncontrollable, which will lead to defects such as the extrusion of the rubber ring at the pipe interface installed on the pipe jacking machine, the gap between the pipes is too large, and cracks are generated to leak water, resulting in poor molding quality of the pipe. In addition, it is difficult to replace pipes in underground spaces and the cost is high, so the pipe interface is generally repaired. The Chinese patent with application number 202010351711.9 discloses a non-excavation stainless steel expansion ring joint repair construction method for underground sewage pipes, which adopts the method of expansion plate and inner expansion ring to achieve expansion. However, this method cannot control the expansion force well, so that the rubber sealing groove is unevenly stressed, easy to be damaged, and there is a risk of leakage again. Moreover, the repaired pipe interface is not strong enough, the repair effect is poor, and there is still a risk of leakage. Utility Model Content

[0004] The utility model provides a pipeline interface repairing device to solve the technical problems of loose connection and poor sealing of pipeline interfaces in the prior art.

[0005] According to one aspect of the utility model, a pipeline interface repair device is provided for sealing and reinforcing the interface of the pipeline, including a rigid ring adjustment assembly covering and installed on the interface of the inner wall of the pipeline, the rigid ring adjustment assembly including an expansion ring and an adjusting wedge, the expansion ring is provided with a fracture, the adjusting wedge is embedded in the fracture of the expansion ring to change the distance between the cross sections of the expansion ring, thereby adjusting the outer contour size of the expansion ring so that the expansion ring is tightly fitted to the inner wall of the pipeline.

[0006] Furthermore, the expansion ring includes two symmetrically arranged expansion half rings, which are used to be connected in the pipeline to form a circular ring structure to adapt to the inner wall of the pipeline;

[0007] One end of the two expansion half rings is correspondingly provided with a reinforcement part, the adjustment wedge is arranged between the two reinforcement parts and fixedly connected to the reinforcement parts, and the ends of the two expansion half rings away from the reinforcement parts are fixedly connected.

[0008] Furthermore, a sealing member is provided between the two reinforcement parts, and the sealing member is installed between the adjusting wedge block and the inner wall of the expansion half ring, and is used to seal the joint between the two expansion half rings;

[0009] The seal is a rubber pad.

[0010] Furthermore, the reinforcement part includes an interface plate fixed on the inner wall of the expansion half ring and a reinforcement plate, the interface plate is arranged along the axial direction of the pipeline, and the length of the interface plate is adapted to the width of the expansion half ring, and is used to connect adjacent expansion half rings;

[0011] The reinforcement plate is arranged along the radial direction of the pipeline, and is arranged on a side of the interface plate away from the adjusting wedge and fixedly connected to the interface plate, so as to support and reinforce the interface plate.

[0012] Furthermore, a plurality of reinforcing plates are arranged on the expansion half ring at intervals along the axial direction of the pipe.

[0013] Furthermore, the adjusting wedge is arranged between the interface plates of the two reinforcement parts, and is used to adjust the distance between the two interface plates so that the outer walls of the two expansion semi-rings fit closely with the inner wall of the pipeline; the adjusting wedge is a rigid wedge.

[0014] Furthermore, threaded holes are correspondingly provided on the adjusting wedge block and the interface plate for bolts to pass through to connect and fix the adjusting wedge block and the interface plate.

[0015] Furthermore, the expansion ring is a stainless steel ring.

[0016] Furthermore, a sealing layer is provided between the rigid ring adjustment assembly and the inner wall of the pipeline, and the sealing layer includes at least one of a rubber ring, a water stop strip, an expansive cement or a sealing glue layer.

[0017] Furthermore, the pipeline interface repair device also includes a sealant layer embedded in the pipeline interface.

[0018] The utility model has the following beneficial effects:

[0019] The utility model provides a pipeline interface repair device, by arranging a rigid ring adjustment component on the inner wall of the pipeline at the pipeline interface, so that the rigid ring adjustment component completely covers the gap at the pipeline interface to block the gap, and the rigid ring adjustment component is supported in the pipeline, the structure is stable and has a certain rigidity, the pipeline can be positioned and reinforced, the connection strength of the pipeline interface is enhanced, and the ability to resist dislocation is prevented, so as to prevent the repaired pipeline from being dislocated due to geological differences or settlement, and avoid the gap at the interface causing sealing failure; by setting the expansion ring as a fracture structure, and clamping the adjustment wedge block in the fracture of the expansion ring, the adjustment wedge block is adjusted by adjusting the distance between the cross sections of the expansion ring to adjust the outer contour size of the expansion ring, so that the outer wall of the expansion ring is closely combined with the inner wall of the pipeline, thereby realizing the sealing of the pipeline interface, effectively preventing the pipeline interface from leaking, and ensuring the sealing of the pipeline interface; and the rigid ring adjustment component of the device realizes closed-loop connection by abutting the adjustment wedge block with the expansion ring, compared with the prior art, there is no need to perform impact operations such as punching on the pipeline to be repaired, and local structural damage to the pipeline can be effectively avoided. Preferably, a sealing layer is provided between the rigid ring adjustment component and the inner wall of the pipeline to further enhance the sealing effect. The pipeline interface repair device can be adjusted according to the inner diameter of the pipeline to flexibly adapt to different pipe diameters, has strong versatility, is easy to operate, and saves time and effort.

[0020] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 This is a schematic diagram I of the installation of a pipeline interface repair device according to a preferred embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram II of the installation of the pipeline interface repair device of the preferred embodiment of the utility model;

[0024] Figure 3 1 is a cross-sectional view of a pipeline interface repairing device according to a preferred embodiment of the utility model;

[0025] Figure 4 It is a cross-sectional view II of the pipeline interface repair device of the preferred embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of an adjusting wedge block of a preferred embodiment of the utility model.

[0027] Legend:

[0028] 100, pipeline; 101, sealing ring; 102, combination ring; 103, pressure ring; 200, expansion ring; 201, expansion half ring; 202, reinforcement part; 2021, interface plate; 2022, reinforcement plate; 2023, threaded hole; 300, adjusting wedge; 400, sealing layer. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0030] like Figure 1 and Figure 2 As shown, the pipeline interface repair device of this embodiment is used to seal and reinforce the interface of the pipeline 100 to be repaired, and includes a rigid ring adjustment component installed on the inner wall of the pipeline 100. The width of the rigid ring adjustment component is greater than the width of the interface of the pipeline 100, so that it can completely cover the gap at the interface of the pipeline 100 to block the gap. The rigid ring adjustment component includes an expansion ring 200 and an adjustment wedge 300. The expansion ring 200 is provided with a fracture. The adjustment wedge 300 is embedded in the fracture of the expansion ring 200 to change the distance between the cross sections of the expansion ring 200, so that the outer contour size of the expansion ring 200 can be adjusted to make the outer wall of the expansion ring 200 fit closely with the inner wall of the pipeline 100. The adjusting wedge 300 includes a variety of different specifications. According to the size of the fracture of the expansion ring 200, the adjusting wedge 300 of the matching specification can be selected and embedded in the fracture of the expansion ring 200. By making the outer wall of the expansion ring 200 abut against the inner wall of the pipeline 100, the interface of the pipeline 100 is sealed to effectively prevent leakage from occurring at the interface of the pipeline 100. The expansion ring 200 can adapt to different pipe diameters by adjusting the size of the opening, and has high flexibility and strong versatility. The adjusting wedge 300 is embedded in the fracture of the expansion ring 200 and is connected to the expansion ring 200, so that the rigid ring adjustment component can realize a closed loop in the pipeline 100 to form a stable structure. Compared with the prior art, there is no need to perform impact operations such as punching on the pipeline 100 to be repaired, which can effectively avoid local structural damage to the pipeline 100. At the same time, the rigid ring adjustment component can form a stable structure supported in the pipeline 100 to position and reinforce the pipeline 100, enhance the connection strength of the interface of the pipeline 100, and have the ability to resist dislocation, so as to prevent the repaired pipeline 100 from being dislocated due to geological differences or settlement, resulting in gaps at the interface and causing sealing failure. Optionally, the adjusting wedge 300 abuts against the expansion ring 200; optionally, the adjusting wedge 300 is fixedly connected to the expansion ring 200.

[0031] When in use, first replace and reinforce the original sealing ring 101 at the interface of the pipeline 100. Specifically, the operator enters the pipeline 100 to conduct a comprehensive inspection of the pipeline 100, identifies the interface of the pipeline 100 with quality defects, and then inserts the pre-processed hook tool into the gap at the interface of the pipeline 100, hooks out the original unqualified sealing ring 101 at the interface for removal, and then cleans the surface of the removed interface of the pipeline 100, and after cleaning, lubricants are applied to the surface of the pipeline 100 where the sealing ring 101 is to be installed, so as to facilitate the installation of the sealing ring 101 and enhance the sealing of the sealing ring 101 and the pipeline 100, and then install the qualified sealing ring 101 at the interface of the pipeline 100, and press it evenly into the pipeline 100 through the combination ring 102, and then fix it through the pressing ring 103, and finally tighten the bolts on the pressing ring 103 to firmly install the new sealing ring 101 at the interface, avoid gaps at the interface, and ensure the sealing of the interface of the pipeline 100. After the new sealing ring 101 is replaced, the pipeline interface repair device is installed on the inner wall of the interface of the pipeline 100, that is, the expansion ring 200 is covered on the interface of the pipeline 100 along the radial direction of the pipeline 100, and then the fracture of the expansion ring 200 is manually controlled to adjust the distance between the cross sections, so that the outer wall of the expansion ring 200 is tightly fitted with the inner wall of the pipeline 100, and then the adjusting wedge block 300 matched with the opening size of the expansion ring 200 at this time is selected to be embedded in the opening of the expansion ring 200, so that the outer wall of the expansion ring 200 is abutted against the inner wall of the pipeline 100, so that the adjusting wedge block 300 and the expansion ring 200 form a closed circular ring structure stably supported in the pipeline 100, thereby realizing the sealing of the pipeline 100 interface.

[0032] like Figure 1As shown, the expansion ring 200 includes two expansion half rings 201, which are symmetrically arranged in the pipe 100 so that they can be connected to form a circular ring structure adapted to the inner wall of the pipe 100. One end of the two expansion half rings 201 is correspondingly provided with a reinforcement part 202, and the adjustment wedge 300 is arranged between the two reinforcement parts 202 and fixedly connected to the two reinforcement parts 202 respectively, and the ends of the two expansion half rings 201 away from the reinforcement part 202 are fixedly connected. Preferably, the ends of the two expansion half rings 201 away from the reinforcement part 202 are fixed by welding. When in use, the two expansion half rings 201 are transported to the interface in the pipe 100, and then the ends of the two expansion half rings 201 away from the reinforcement part 202 are welded and fixed in the pipe 100, so that the two expansion half rings 201 are connected into a circular ring structure, and then their positions are adjusted so that they are attached to the interface and the reinforcement part 202 is placed at the lower position for easy operation, and then the reinforcement parts 202 at the ends of the two expansion half rings 201 are simultaneously controlled to move away from each other, so that the outer walls of the two expansion half rings 201 are tightly fitted with the inner wall of the pipe 100, and then the adjusting wedge block 300 is pushed in between the two reinforcement parts 202 so that the outer wall of the expansion half ring 201 abuts against the inner wall of the pipe 100, and then the adjusting wedge block 300 and the reinforcement part 202 are connected and fixed, thereby completing the assembly of the device. The expansion plate is arranged as two expansion half rings 201, which can be easily inserted into the pipe 100, and is convenient to carry and operate, thereby improving work efficiency; the ends of the two expansion half rings 201 away from the reinforcement part 202 are welded and fixed in the pipe 100 to form a circular ring structure, which is convenient for position adjustment, making it easier to attach the expansion half rings 201 to the interface of the pipe 100, and the two expansion half rings 201 after welding and fixing only retain the two reinforcement parts 202 for opening adjustment, and the outer contour of the expansion ring 200 can be adjusted by only controlling the distance between the two reinforcement parts 202, which is convenient to operate and can be adjusted quickly and accurately.

[0033] Preferably, a seal is also provided between the two reinforcement parts 202, and the seal is installed between the adjusting wedge block 300 and the inner wall of the expansion half ring 201. The distance between the two reinforcement parts 202 is adjusted, and when the outer walls of the two expansion half rings 201 are tightly fitted with the inner wall of the pipe 100, the adjusting wedge block 300 is pushed between the two reinforcement parts 202. At this time, a joint seam will appear between the two expansion half rings 201. The seal is installed between the adjusting wedge block 300 and the inner wall of the expansion half ring 201 to seal the joint seam between the two expansion half rings 201, prevent leakage at the joint seam, and ensure the sealing effect. Optionally, the seal is a rubber pad. Optionally, the seal can also be directly fixed on the end face of the adjusting wedge block 300 that is in contact with the inner wall of the expansion half ring 201 and / or the reinforcement portion 202 of the expansion half ring 201. When installing the adjusting wedge block 300, it is made to fit tightly against the inner wall of the expansion half ring 201, so as to achieve sealing with the two expansion half rings 201.

[0034] like Figure 1 and Figure 4 As shown, the reinforcement part 202 is fixedly installed at the end of the expansion half ring 201, including an interface plate 2021 arranged along the axial direction of the pipeline 100 and a reinforcement plate 2022 arranged along the radial direction of the pipeline 100. The interface plate 2021 and the reinforcement plate 2022 are both fixed on the inner wall of the expansion half ring 201. One side of the interface plate 2021 is used to abut and connect with the adjustment wedge 300. The reinforcement plate 2022 is arranged on the side of the interface plate 2021 away from the adjustment wedge 300 and is fixedly connected to the interface plate 2021, and is used to support and reinforce the interface plate 2021. Preferably, the length of the interface plate 2021 is adapted to the width of the expansion half ring 201 to enhance the strength of the connection between the two expansion half rings 201, and when the interface plate 2021 is manually controlled to adjust the distance between the two expansion half rings 201, the two expansion half rings 201 are subjected to uniform force.

[0035] like Figure 1 As shown, preferably, the reinforcing plate 2022 is fixed to the inner wall of the expansion half ring 201 and the interface plate 2021 by welding, or connected by bolts. The reinforcing plate 2022 is arranged at the corner where the interface plate 2021 is connected to the inner wall of the expansion half ring 201, and a plurality of reinforcing plates 2022 are arranged at intervals along the axial direction of the pipeline 100 on the expansion half ring 201 to strengthen the support of the interface plate 2021 and ensure the strength of the connection between the interface plate 2021 and the expansion half ring 201, so that when the two interface plates 2021 are manually operated to move away from each other so that the outer wall of the expansion half ring 201 abuts against the inner wall of the pipeline 100, the reinforcing plate 2022 can prevent the interface plate 2021 from being folded due to excessive force and losing the connection with the inner wall of the expansion half ring 201.

[0036] like Figure 1 and Figure 4As shown, the adjusting wedge block 300 is arranged between the reinforcement parts 202 at the ends of the two expansion half rings 201. Specifically, the adjusting wedge block 300 is arranged between the two interface plates 2021, and is used to adjust the distance between the two interface plates 2021 so that the outer walls of the two expansion half rings 201 fit tightly with the inner wall of the pipe 100. When in use, after the expansion ring 200 is connected into a circular ring structure and attached to the interface of the inner wall of the pipe 100, the two interface plates 2021 are manually controlled to move away from each other, so that the two expansion half rings 201 gradually approach the inner wall of the pipe 100 until the outer wall of the expansion half ring 201 is tightly fitted with the inner wall of the pipe 100. At this time, the adjustment wedge 300 is pushed between the two interface plates 2021 to position the two expansion half rings 201, so that the outer wall of the expansion half ring 201 abuts against the inner wall of the pipe 100, avoiding the occurrence of a gap between the expansion half ring 201 and the pipe 100, thereby achieving the sealing of the interface of the pipe 100. The adjustment wedge 300 is a rigid wedge with high support strength and wear resistance; optionally, the adjustment wedge 300 is a stainless steel wedge, and optionally, the adjustment wedge 300 can also be a wooden wedge. Preferably, the length of the adjusting wedge 300 is matched with the width of the expansion half ring 201 to ensure that the two expansion half rings 201 are evenly stressed and the adjusting wedge 300 completely covers the joint between the two expansion half rings 201 to ensure the sealing effect. Preferably, the adjusting wedge 300 is set with a variety of different sizes according to the distance between the two interface plates 2021 for flexible adaptation.

[0037] like Figure 2 , Figure 3 and Figure 5 As shown, after the adjusting wedge 300 is pushed in between the two interface plates 2021, the interface plates 2021 and the adjusting wedge 300 are fixed by bolts. Specifically, threaded holes 2023 are correspondingly provided on the adjusting wedge 300 and the interface plates 2021, and the bolts are sequentially inserted through the threaded holes 2023 into the interface plates 2021 and the adjusting wedge 300 for threaded fastening, so as to realize the connection and fixation of the adjusting wedge 300 and the interface plates 2021, so that the expansion ring 200 forms a complete closed loop, and leakage is avoided on the expansion ring 200. The expansion ring 200 is closely abutted against the inner wall of the interface of the pipeline 100, and leakage is avoided between the expansion ring 200 and the inner wall of the pipeline 100, thereby realizing the sealing of the interface of the pipeline 100.

[0038] Preferably, the expansion ring 200 is a stainless steel ring. On the one hand, the stainless steel ring has a certain rigidity, which can ensure the rigidity of the device, so that it can form a stable structure to support the pipeline 100, so as to position and reinforce the pipeline 100, enhance the connection strength of the interface of the pipeline 100, and make it anti-dislocation capable, so as to prevent the repaired pipeline 100 from being dislocated due to geological differences or settlement, causing gaps at the interface and resulting in sealing failure; on the other hand, the stainless steel ring also has a certain degree of adjustability, and the opening size of the expansion ring 200 can be adjusted by controlling the reinforcement part 202, so that it can fit the inner wall of the pipeline 100.

[0039] Preferably, a sealing layer 400 is provided between the rigid ring adjustment assembly and the inner wall of the pipe 100, and the sealing layer 400 includes at least one of an expansive cement, a rubber ring, a water stop or a sealing layer. After the rigid ring adjustment assembly is installed in the pipe 100, the sealing layer 400 is filled in the gap between the outer wall of the expansion ring 200 and the inner wall of the pipe 100 to further enhance the sealing effect.

[0040] Preferably, the device also includes a sealing layer embedded in the interface of the pipe 100. After the sealing ring 101 of the interface of the pipe 100 is replaced, the sealing layer is embedded in the gap at the interface to prevent gaps from appearing at the interface, thereby further ensuring the sealing effect.

[0041] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pipeline interface repair device, used for sealing and reinforcing the interface of a pipeline (100), characterized in that: The invention comprises a rigid ring adjustment component which is covered and installed on the inner wall interface of the pipeline (100), wherein the rigid ring adjustment component comprises an expansion ring (200) and an adjustment wedge (300), wherein the expansion ring (200) is provided with a fracture, and the adjustment wedge (300) is embedded in the fracture of the expansion ring (200) to change the distance between the cross sections of the expansion ring (200), thereby adjusting the outer contour size of the expansion ring (200) so that the expansion ring (200) is closely fitted to the inner wall of the pipeline (100).

2. The pipeline interface repair device according to claim 1, characterized in that: The expansion ring (200) comprises two symmetrically arranged expansion half rings (201) and is used to be connected in the pipe (100) to form a circular ring structure to fit the inner wall of the pipe (100); A reinforcement part (202) is correspondingly provided at one end of the two expansion half rings (201), the adjustment wedge block (300) is arranged between the two reinforcement parts (202) and fixedly connected to the reinforcement part (202), and one end of the two expansion half rings (201) away from the reinforcement part (202) is fixedly connected.

3. The pipeline interface repair device according to claim 2, characterized in that: A sealing member is also provided between the two reinforcement parts (202), and the sealing member is installed between the adjusting wedge block (300) and the inner wall of the expansion half ring (201), and is used for sealing the joint seam between the two expansion half rings (201); The sealing element is a rubber pad.

4. The pipeline interface repair device according to claim 2, characterized in that: The reinforcement portion (202) comprises an interface plate (2021) fixed on the inner wall of the expansion half ring (201) and a reinforcement plate (2022); the interface plate (2021) is arranged along the axial direction of the pipeline (100), and the length of the interface plate (2021) is adapted to the width of the expansion half ring (201), and is used to connect adjacent expansion half rings (201); The reinforcing plate (2022) is arranged along the radial direction of the pipeline (100), and the reinforcing plate (2022) is arranged on a side of the interface plate (2021) away from the adjusting wedge block (300) and is fixedly connected to the interface plate (2021), so as to support and reinforce the interface plate (2021).

5. The pipeline interface repair device according to claim 4, characterized in that: A plurality of the reinforcing plates (2022) are arranged on the expansion half ring (201) at intervals along the axial direction of the pipe (100).

6. The pipeline interface repair device according to claim 4, characterized in that: The adjusting wedge (300) is arranged between the interface plates (2021) of the two reinforcement parts (202) and is used to adjust the distance between the two interface plates (2021) so that the outer walls of the two expansion half rings (201) are closely fitted to the inner wall of the pipe (100); The adjusting wedge block (300) is a rigid wedge.

7. The pipeline interface repair device according to claim 4, characterized in that: The adjusting wedge block (300) and the interface plate (2021) are provided with threaded holes (2023) correspondingly for passing bolts therethrough to connect and fix the adjusting wedge block (300) and the interface plate (2021).

8. The pipeline interface repair device according to claim 1, characterized in that: The expansion ring (200) is a stainless steel ring.

9. The pipeline interface repair device according to claim 1, characterized in that: A sealing layer (400) is provided between the rigid ring adjustment component and the inner wall of the pipe (100), and the sealing layer (400) comprises at least one of a rubber ring, a water stop strip, an expansive cement or a sealing adhesive layer.

10. The pipeline interface repair device according to claim 1, characterized in that: The pipeline (100) interface repair device also includes a sealing rubber layer embedded in the interior of the pipeline (100) interface.

Images