Pipe jacking and penetrating structure with pulleys in square box culvert

Abstract

The utility model relates to the field of pipe jacking and pipe penetrating, in particular to a pipe jacking and pipe penetrating structure with pulleys in a square box culvert. Comprising an inner penetrating pipe, a steel hoop is arranged above the inner penetrating pipe and arranged above a pipeline, and the pipeline is annularly hooped; the steel pipe support and the steel hoop fix the inner penetrating pipe together; the rubber pad is positioned among the inner penetrating pipe, the pulley steel hoop and the steel pipe support; the pulley is used for supporting the steel pipe support; the pulley connecting steel plate is used for connecting the pulley and the steel pipe support; the limiting channel steel is arranged at the bottom of the inner side of the outer sleeve, and flanges of the channel steel are used for guiding the inner penetrating pipe to be pushed forwards and preventing the inner penetrating pipe from deviating. The pipe jacking and penetrating structure with the pulleys in the square box culvert can effectively solve the technical problems that an anti-corrosion layer of an inner penetrating pipe is damaged, the propelling process is unstable, and the inner penetrating pipe deviates, and improves safety, stability and reliability of inner penetrating pipe construction.

Description

Technical Field

[0001] The utility model relates to the field of pipe insertion in a jacking pipe, in particular to a jacking pipe insertion structure with a pulley in a square box culvert. Background Art

[0002] With the rapid development of my country's infrastructure, pipeline construction is playing an increasingly important role in energy, water conservancy, urban gas, and other fields. As a common pipeline construction method, outer casing construction requires the inner pipe to be passed through the outer casing after completion to form a complete pipeline system. Currently, the inner pipe is mainly pushed into the outer casing using the jacking technique.

[0003] The existing pipe jacking technology mainly works by setting a cart under the inner pipe, and in the process of pushing the inner pipe, the cart and the inner pipe are displaced, thereby pushing the inner pipe forward along the outer casing. However, this construction method has the following problems in actual application: 1) Damage to the anti-corrosion layer of the inner pipe: Due to the limitations of the pipe jacking technology, the inner pipe is prone to friction with the outer casing during the jacking process, resulting in damage to the anti-corrosion layer of the inner pipe, reducing the anti-corrosion performance of the pipeline and shortening the service life of the pipeline. 2) Unstable pushing process: During the pushing process of the inner pipe, the cart is prone to displacement with the inner pipe, making it impossible for the inner pipe to be pushed forward in a predetermined straight line, resulting in unstable pipeline construction quality and affecting the safety performance of the pipeline. 3) Deviation of the inner pipe: During the pushing process of the inner pipe, due to the displacement of the cart and unstable pushing, the inner pipe is easily deviated during the pipe jacking process, affecting the normal use of the pipeline. Utility Model Content

[0004] In response to the above problems, the utility model provides a new type of internal pipe construction structure, which aims to protect the anti-corrosion layer on the outside of the internal pipe, facilitate the advancement of the pipeline in the outer casing, protect the main structure of the internal pipe, prevent the internal pipe from being deformed due to lack of foundation support during the pipe insertion process, guide the advancement direction of the internal pipe, and prevent the internal pipe from deviating during the pipe insertion process, thereby improving the construction quality and service life of the pipeline.

[0005] In order to achieve the above purpose, the present invention specifically adopts the following technical solutions:

[0006] A pipe-jacking structure with a pulley inside a square box culvert comprises an inner pipe (pipe body) and a steel clamp on top thereof, which is placed above the pipe and annularly clamps the pipe.

[0007] The steel pipe support, together with the steel clamp, fixes the inner pipe to prevent the inner pipe and the clamp from detaching during the advancement of the inner pipe. The steel pipe support needs to have a certain thickness to prevent the steel pipe support from deformation due to insufficient rigidity during the advancement of the pipeline.

[0008] The rubber pad is located between the inner pipe and the steel clamp and the steel pipe support to increase the connection between the pipe and the steel clamp and the steel pipe support and to protect the pipe;

[0009] The pulley is used to support the steel pipe bracket, reduce the friction between the inner pipe and the outer sleeve, and facilitate the advancement of the pipe;

[0010] The pulley connecting steel plate is used to connect the pulley and the steel pipe support;

[0011] The limiting channel steel is arranged at the inner bottom of the outer casing to reduce the friction between the pulley and the outer casing. The flange of the channel steel is used to guide the inner pipe forward to prevent the inner pipe from deviating.

[0012] Furthermore, a number of pulleys are arranged at intervals below the inner tube to advance the inner tube in the outer tube.

[0013] Furthermore, the steel clamp and the steel pipe support are fixed by steel pipe support connecting bolts, and are connected to the inner pipe as a whole, so as to prevent the steel clamp and the steel pipe support from being dislocated from the inner pipe when the inner pipe is pushed forward.

[0014] Furthermore, the outer pipe sleeve is a square box culvert, and the limiting channel steel and the square box culvert are connected by channel steel fixing bolts.

[0015] The utility model has the following beneficial effects:

[0016] The rubber pad, located between the inner pipe and the steel clamp and pipe support, acts as a shock absorber and protects the pipe, reducing damage to the inner pipe caused by vibration during advancement. It also prevents direct contact between the inner pipe and the outer casing, protecting the inner pipe's anti-corrosion coating and preventing damage to the coating.

[0017] The steel pipe support and the steel clamp together fix the inner pipe, providing stable support and ensuring that the inner pipe will not slide relative to it during the advancement process, thereby ensuring the stability of the advancement process.

[0018] The pulley supports the steel pipe, significantly reducing friction between the inner and outer pipes, allowing the inner pipe to advance more smoothly. A limit channel is located at the inner bottom of the outer pipe. The flange of the channel guides the inner pipe forward, preventing it from deviating and ensuring the correct direction of advancement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a plan view of the pipe-jacking and pipe-threading structure of a certain embodiment of the utility model;

[0020] Figure 2 This is a cross-sectional layout diagram of a pipe-jacking and pipe-threading structure in a certain embodiment of the present utility model;

[0021] Figure 3 for Figure 1 AA section view in;

[0022] Figure 4 for Figure 1 The steel hoop elevation and plan development drawings;

[0023] Figure 5 for Figure 1 The steel pipe support elevation and plan development drawings.

[0024] Numbers in the figure:

[0025] 1. Inner pipe; 2. Steel clamp; 3. Rubber pad; 4. Steel pipe support; 5. Steel pipe support connecting bolts; 6. Pulley; 7. Pulley connecting steel plate; 8. Limit channel steel; 9. Channel steel fixing bolts. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0027] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, certain parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the dimensions of actual products. For those skilled in the art, the omission of certain well-known structures and their descriptions in the accompanying drawings is understandable.

[0028] See also Figures 1 to 3 The pipe-jacking structure of the present invention mainly includes an inner pipe 1, a steel clamp 2, a steel pipe support 3, a rubber pad 4, a steel pipe support connecting bolt 5, a pulley connecting steel plate 6, a pulley connecting steel plate 7, a limiting channel steel 8 and other components. Among them, the inner pipe 1 is the pipe body in the square box culvert, and the steel clamp 2 is placed above the inner pipe 1, annularly clamping the inner pipe 1 and forming a tight connection with the inner pipe 1. The steel pipe support 3 and the steel clamp 2 together fix the inner pipe 1 to prevent the inner pipe 1 from being detached from the steel clamp 2 during the advancement process. The rubber pad 4 is located between the inner pipe 1, the steel clamp 2 and the steel pipe support 3, and plays a role in protecting the pipe 1.

[0029] Pulley 6 is welded beneath the steel pipe support 4. It supports the steel pipe support 3, facilitating the forward movement of the pipe 1. A pulley connecting plate 7 connects the pulley 6 to the steel pipe support 3, providing stable pulley support. A limiting channel steel 8 is located at the bottom inside the outer casing. The flange of the channel steel guides the inner pipe 1 forward and prevents it from deviating.

[0030] The steel pipe supports 3 and pulleys 6 need to be selected according to the diameter of the inner pipe 1 to ensure sufficient support and reduce friction. For a single 6m pipeline, the steel pipe supports 3 should be arranged in at least 2 groups to ensure stability and safety during the propulsion process.

[0031] The outer pipe sleeve is a square box culvert, and the limiting channel steel 8 is connected to the square box culvert through the channel steel fixing bolts 9 to ensure the stability and effectiveness of the limiting channel steel 8.

[0032] See also Figure 4 The steel clamp 2 and the steel pipe support 3 must be sufficiently wide to securely support the inner pipe 1 and its own weight, preventing deformation of the inner pipe 1 at the location of the steel pipe support 3. As required, the steel clamp 2 and the steel pipe support 4 can be equipped with stiffening ribs along the circumferential and longitudinal directions of the pipe body to ensure adequate rigidity. The width of the steel pipe support 3 must be no less than 300 mm to ensure sufficient rigidity and stability.

[0033] During the specific implementation process, first select a suitable steel pipe support 3 according to the diameter of the inner pipe 1 to ensure sufficient support. A pulley is welded under the steel pipe support 3 to connect the steel plate 7 and the pulley 6 to provide stable pulley support, which facilitates the forward advancement of the pipe 1. Then, the steel clamp 2 and the steel pipe support 3 are annularly clamped around the inner pipe 1 through the steel pipe support connecting bolts 5 to prevent the inner pipe 1 from being detached from the steel clamp 2 during the advancement process. The rubber pad 4 is placed between the inner pipe 1 and the steel clamp 2 and the steel pipe support 3 to protect the pipe 1. A limiting channel steel 8 is arranged at the bottom inner side of the outer casing to reduce the friction between the pulley 6 and the outer casing. The flange of the channel steel is used to guide the inner pipe 1 forward to prevent the inner pipe 1 from deviating. After the pipe is threaded, the pipe threading structure needs to be fixed to prevent the pipeline from shifting later in the box culvert.

[0034] The utility model utilizes a steel clamp, a steel pipe support, a rubber pad, a pulley, and a channel steel guide rail to ensure smooth advancement of the pipe within the outer casing. During the insertion process, the outer anti-corrosion layer of the inner pipe is not damaged, protecting the main structure of the pipe, facilitating the advancement of the pipe within the inner pipe, and preventing the inner pipe from deviating during the insertion process.

Claims

1. A pipe-jacking structure with pulleys in a square box culvert, characterized in that: include: The inner pipe (1) has a steel clamp (2) placed on top of the pipe to clamp the pipe in an annular manner; The steel pipe support (4) fixes the inner pipe (1) together with the steel clamp (2) to prevent the inner pipe (1) and the clamp from being separated during the advancement of the inner pipe (1); A rubber pad (3) is located between the inner pipe (1) and the steel clamp (2) and the steel pipe support (4), thereby increasing the connection between the pipe and the steel clamp (2) and the steel pipe support (4) and protecting the pipe; The pulley (6) is used to support the steel pipe support (4) to reduce the friction between the inner pipe (1) and the outer sleeve, so as to facilitate the advancement of the pipe; The pulley connecting steel plate (7) is used to connect the pulley (6) and the steel pipe support (4); The limiting channel steel (8) is arranged at the bottom of the inner side of the outer sleeve and is used to reduce the friction between the pulley (6) and the outer sleeve. The flange of the channel steel is used to guide the inner pipe (1) to move forward and prevent the inner pipe (1) from running off the track.

2. The pipe-jacking structure with pulleys in a square box culvert according to claim 1, characterized in that: A number of pulleys (6) are arranged at intervals below the inner tube (1) for advancing the inner tube (1) inside the outer tube.

3. The pipe-jacking structure with pulleys in a square box culvert according to claim 1, characterized in that: The steel hoop (2) and the steel pipe support (4) are fixed by means of steel pipe support connecting bolts (5), and are connected to the inner pipe (1) as a whole. When the inner pipe (1) is pushed forward, the steel hoop (2) and the steel pipe support (4) are prevented from being dislocated from the inner pipe (1).

4. The pipe-jacking structure with pulleys (6) in a square box culvert according to claim 1, characterized in that: The outer pipe sleeve is a square box culvert, and the limiting channel steel (8) is connected to the square box culvert via channel steel fixing bolts (9).

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