Pipe non-excavation repair pretreatment steel support

Abstract

The utility model belongs to the technical field of pipeline construction, and discloses a pipeline non-excavation repair pretreatment steel support which comprises a cross beam, a threaded section is arranged on the cross beam, the threaded section is in threaded connection with a sliding seat, the sliding seat can rotate along the threaded section, a rotating seat is coaxially and rotatably installed on the sliding seat, and the rotating seat is in threaded connection with the threaded section. A first connecting rod is hinged to the rotating seat, a supporting arm is hinged to the other end of the first connecting rod, one end of a second connecting rod is hinged to each of the two sides of the cross beam, and the other end of the second connecting rod is hinged to the supporting arm. The device can move to pipe wall repairing areas at different positions, multiple supporting devices do not need to be erected, cost is saved to a certain degree, and the device has the advantages of being simple and reliable in structure and easy and convenient to install.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline construction, and in particular relates to a pre-processed steel support for pipeline trenchless repair. Background Art

[0002] The urban drainage network is an important and indispensable infrastructure for modern cities. It is the backbone of urban water pollution prevention and control, urban drainage and flood prevention, and an important indicator of the level of modern cities.

[0003] At present, the drainage pipes in most cities in my country are repaired by excavating and then reburying the pipes. With the progress of urbanization, the urban underground pipelines are intricate and the load on urban roads is becoming more and more serious, resulting in a large number of technical problems in the repair process of underground pipelines.

[0004] With the continuous improvement of urban construction, trenchless pipe laying, pipe repair and pipe replacement technology is increasingly favored by underground pipeline industry management departments for its series of advantages, such as no impact on subsequent traffic, fast pipe laying speed, high efficiency, no environmental damage, and no impact on people's normal work and life.

[0005] Trenchless pipeline repair technology first emerged in the oil and gas industry, mainly used for the renewal and repair of oil and gas pipelines. Later, it was gradually applied to the renovation of water supply and drainage pipelines, and was rapidly promoted with the application of new pipes such as HDPE pipes.

[0006] Since the support of the pipe wall is reduced after the pipeline is damaged, the external soil pressure is strong during the trenchless repair process. It is necessary to install a steel support structure on the inner wall near the pipe wall repair area to ensure the support stability of the pipe wall during the repair process and avoid the pipeline being compressed and deformed, which may threaten the safety of repair personnel entering the pipeline. The currently used steel support device is cumbersome to install, large in size, inconvenient to disassemble and assemble, and has poor practicality. Utility Model Content

[0007] In order to solve the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a pre-treated steel support for trenchless repair of pipelines to solve the problems mentioned in the background technology.

[0008] The technical solution adopted by the present invention to solve the technical problems of the pre-treatment steel support for pipeline trenchless repair is:

[0009] A pre-treated steel support for trenchless repair of pipelines is provided, comprising a crossbeam, a threaded section is provided on the crossbeam, a sliding seat is threadedly connected to the threaded section, the sliding seat can rotate along the threaded section, a rotating seat is coaxially rotatably installed on the sliding seat, a first connecting rod is hinged on the rotating seat, the other end of the first connecting rod is hinged to a supporting arm, one end of a second connecting rod is hinged to each side of the crossbeam, and the other end of the second connecting rod is hinged to the supporting arm.

[0010] Furthermore, one end of the threaded section is fixedly connected with a push seat.

[0011] Furthermore, the push seat is connected with a handle.

[0012] Furthermore, a plurality of plug rods are fixedly mounted on the slide seat.

[0013] Furthermore, rollers are fixedly mounted on two sides of the rotating seat.

[0014] Furthermore, the outside of the support arm is provided with a pad, a groove is provided on the pad, screw holes are provided on the pad, and bolts for fixing the pad and the support arm are provided in the screw holes.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A steel support for pretreatment of pipeline trenchless repair according to an example of the utility model. When using the device, according to the position of the pipeline to be repaired, the device is inserted and the staff transfers the crossbeam from the wellhead near one end of the damaged pipeline to the position of the pipeline to be repaired, rotates the slide, and drives the rotating seat to move in the horizontal direction through the rotation of the slide, so that the first connecting rod and the second connecting rod produce relative movement, and lifts up the support arm. Since the support arm in the device can simultaneously complete the centering movement toward or away from each other, it is only necessary to place the crossbeam in the pipeline to complete the support of the inner wall of the pipeline to be repaired. After the pipeline is repaired, the above steps are reversed to retract and reset the support arm, and the device is taken out of the pipeline. The repair work of the damaged part of the municipal pipeline is completed. Through the device, the damaged pipe wall can be quickly supported while ensuring the support stability of the pipe wall during the repair process, and the device can be moved to the pipe wall repair area at different positions, without the need to set up multiple support devices, which saves costs to a certain extent. It has the characteristics of simple and reliable structure and simple and convenient installation.

[0017] 2. A pre-treated steel support for trenchless repair of a pipeline in the example of the utility model can effectively prevent the sliding seat from being separated from the threaded section in some special circumstances by pushing the seat.

[0018] 3. The utility model exemplifies a pre-treated steel support for trenchless repair of pipelines. Workers can push the repair device to slide in the pipeline by holding a handle to complete the repair of pipe wall repair areas at different positions.

[0019] 4. A pre-treated steel support for trenchless repair of a pipeline in the example of the utility model can facilitate the rotation of the slide seat by inserting a rod.

[0020] 5. A pre-treatment steel support for trenchless repair of a pipeline in the example of the utility model can be moved on the inner wall of the pipeline by rollers and can be moved to the pipe wall repair areas at different positions, making it more convenient to push.

[0021] 6. A pre-treated steel support for trenchless repair of a pipeline in the example of the utility model can hide the roller in the groove of the pad through the pad, thereby increasing the force-bearing area of ​​the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 It is a three-dimensional diagram of the structure of the device;

[0024] Figure 2 It is the main view of the structure of this device;

[0025] Figure 3 It is the left view of the structure of the device;

[0026] Figure 4 It is the main view of the structure of this device;

[0027] Figure 5 This is a three-dimensional diagram of the structure of this device

[0028] A graph is a directional view of a graph.

[0029] In the figure: 1, crossbeam; 2, support arm; 3, second connecting rod; 4, first connecting rod; 5, threaded section; 6, push seat; 7, handle; 8, slide seat; 9, plug rod; 10, roller; 11, pipe; 12, rotating seat; 13, pad; 14, bolt. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Embodiment 1:

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, this embodiment provides a pre-treated steel support for trenchless repair of pipelines, including a crossbeam 1, on which a threaded section 5 is provided, and the threaded section 5 is threadedly connected to a sliding seat 8, which can rotate along the threaded section 5, and a rotating seat 12 is coaxially rotatably installed on the sliding seat 8, and a first connecting rod 4 is hinged on the rotating seat 12, and the other end of the first connecting rod 4 is hinged to a support arm 2, and one end of a second connecting rod 3 is hinged on both sides of the crossbeam 1, and the other end of the second connecting rod 3 is hinged on the support arm 2.

[0034] In this embodiment, one end of the threaded section 5 is fixedly connected to a push seat 6 .

[0035] In this embodiment, a handle 7 is connected to the push seat 6 .

[0036] In this embodiment, a plurality of inserting rods 9 are fixedly mounted on the sliding seat 8 .

[0037] In this embodiment, the rollers 10 are fixedly mounted twice on the rotating seat 12 .

[0038] In this embodiment, the support arms 2 are provided with backing plates 13 on the outside, grooves are provided on the backing plates 13, screw holes are provided on the backing plates 13, and bolts 14 for fixing the backing plates 13 and the support arms 2 are provided in the screw holes.

[0039] When using the device, according to the position of the pipe 11 to be repaired, the device is inserted by the staff to pass the crossbeam 1 from the wellhead close to one end of the damaged pipe 11 into the pipe 11. The device is passed to the position of the pipe 11 to be repaired by the staff through the roller 10 on the bottom support arm 2. Then the corresponding pad 13 is inserted into the support arm 2 and locked by the bolt 14. The insertion rod 9 is rotated, and the rotation seat 12 is driven to move in the horizontal direction through the rotation of the slide seat 8, so that the first connecting rod 4 and the second connecting rod 3 produce relative movement, and the support arm 2 is lifted up. The support arm 2 can simultaneously complete the centered movement toward or away from each other. It is only necessary to place the crossbeam 1 in the pipe 11 without deliberately placing it in the center of the pipe 11, so that the pad 13 can fit the inner wall of the pipe 11 to be repaired, thereby completing the support of the inner wall of the pipe 11 to be repaired. After the pipe 11 is repaired, the above steps are reversed, the support arm 2 is retracted and reset, and the device is taken out of the pipe 11, and the repair work of the damaged part of the municipal pipe 11 can be completed. Through this device, the damaged pipe wall can be quickly supported, and it is light and portable and easy to install.

[0040] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

[0041] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. A pre-treated steel support for trenchless pipeline repair, comprising a crossbeam (1), characterized in that: The crossbeam (1) is provided with a threaded section (5), the threaded section (5) is threadedly connected to a slide seat (8), the slide seat (8) can rotate along the threaded section (5), a rotating seat (12) is coaxially rotatably mounted on the slide seat (8), a first connecting rod (4) is hinged on the rotating seat (12), the other end of the first connecting rod (4) is hinged to a support arm (2), one end of a second connecting rod (3) is hinged on both sides of the crossbeam (1), and the other end of the second connecting rod (3) is hinged on the support arm (2).

2. A pre-treated steel support for trenchless repair of pipelines according to claim 1, characterized in that: One end of the threaded section (5) is fixedly connected to a push seat (6).

3. A pre-treated steel support for trenchless repair of pipelines according to claim 2, characterized in that: The push seat (6) is connected to a handle (7).

4. The pre-treated steel support for trenchless repair of pipelines according to claim 1 is characterized in that: A plurality of insertion rods (9) are fixedly mounted on the slide seat (8).

5. The pre-treated steel support for trenchless repair of pipelines according to claim 1 is characterized in that: The rotating seat (12) is provided with rollers (10) fixedly mounted at two locations.

6. The pre-treated steel support for trenchless repair of pipelines according to claim 1 is characterized in that: The support arms (2) are each provided with a backing plate (13) on the outside, a groove is provided on the backing plate (13), a screw hole is provided on the backing plate (13), and bolts (14) for fixing the backing plate (13) and the support arm (2) are respectively provided in the screw hole.

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