Inner supporting steel ring for assembling type small-caliber concrete pipe jacking pipeline emergency rescue

Abstract

The utility model discloses an inner support steel ring for assembly type small-caliber concrete pipe jacking pipeline emergency rescue, and relates to the technical field of inner support steel rings. The device comprises an arc-shaped steel plate, the number of the connecting lug plates is two, and the two connecting lug plates are fixedly installed at the two ends of the arc-shaped steel plate correspondingly. The arc-shaped steel plates serve as basic components, the connecting lug plates are fixedly installed at the two ends of each arc-shaped steel plate, the first pipe pieces are hinged to the arc-shaped steel plates through the connecting lug plates, the second pipe pieces are installed at one ends of the first pipe pieces, and the third pipe pieces are installed between the two second pipe pieces to form a complete annular structure. And the first connecting piece and the second connecting piece are used for fixing the connection between the pipe pieces respectively, so that the overall stability is further enhanced, and by means of the arrangement, quick assembly and disassembly are achieved, field welding is not needed, the emergency rescue efficiency is remarkably improved, the construction difficulty and cost are reduced, meanwhile, the structural stability is enhanced, complex working conditions are adapted, and the safety of constructors is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of internal support steel ring technology, specifically to an assembled small-diameter concrete jacking pipe emergency support steel ring. Background Technology

[0002] With the advancement of urbanization and the increasing demands for living environments, municipal sewage pipe networks and power pipeline projects are becoming more and more common. In underground crossing projects where trenching is inconvenient, such as those involving heavy traffic, crossing rivers, or deep burials, pipe jacking construction technology has become widely used for pipeline construction. Reinforced concrete pipe jacking accounts for the largest proportion of pipe materials used, and pipe rupture is a common problem in pipe jacking construction. After a problem occurs, due to the confined working space inside the pipeline, the large burial depth, the large jacking distance, and the difficulty in ventilation, the pipeline is damp and oxygen-deficient, which can easily lead to electric leakage, electrical safety, poor ventilation, and difficulties for rescue personnel. These difficulties also bring many inconveniences to rescue operations. When carrying out rescue operations inside the pipeline, internal support is required, and the support method is generally to use internal support steel rings to support the inside.

[0003] Existing pipeline emergency repair methods typically involve using a steel plate to form an arc-shaped steel plate with an outer diameter equal to the nominal diameter of the pipeline. This arc-shaped steel plate is then cut into several equal sections. Emergency personnel transport each section of the arc-shaped steel plate, along with other accessories, to the damaged pipeline. Two vertical diagonal braces are then installed inside the pipeline to assemble the arc-shaped steel plate sections tightly against the inner wall of the damaged pipe. On-site welding is then used to create a structurally stable internal support ring within the pipeline, providing support for the damaged pipe and allowing the pipeline jacking operation to continue until the pipeline is completed. However, this emergency repair method is not only ineffective but also time-consuming and labor-intensive due to the confined space and poor ventilation within the pipeline, the difficulty of transporting parts, the lengthy welding time, and the inherent safety hazards. This results in high time costs and impacts the project schedule. Utility Model Content

[0004] The purpose of this utility model is to provide an internal support steel ring for emergency repairs of small-diameter concrete jacking pipes, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: an internal support steel ring for emergency repair of a small-diameter concrete jacking pipe assembly, comprising: an arc-shaped steel plate; two connecting lugs, each fixedly installed at both ends of the arc-shaped steel plate, each connecting lug being detachably hinged with a first pipe segment, each of the two first pipe segments being detachably installed with a second pipe segment at one end, and a third pipe segment being detachably installed between the two second pipe segments; two first connectors, each first connector being installed on the two second pipe segments and the two third pipe segments respectively, for fixing the connection between the first pipe segments and the second pipe segments; and a second connector, the second connector being installed between the two second pipe segments and the third pipe segment, for fixing the connection between the third pipe segment and the two second pipe segments.

[0006] Furthermore, a rotating arc plate is fixedly installed at the end of the first tube segment. The rotating arc plate is located between the two sides of the inner wall of the connecting ear plate. A rotating shaft pin is inserted into the connecting ear plate. The rotating shaft pin passes through the rotating arc plate, and a limit nut is threaded to one end of the rotating shaft pin.

[0007] Furthermore, the first connector includes a limiting steel plate installed between the first tube segment and the second tube segment. One end of each of the two first tube segments and one end of each of the two second tube segments are provided with a slot. The two ends of the limiting steel plate are respectively inserted into the slot at one end of the first tube segment and the slot at one end of the adjacent second tube segment.

[0008] Furthermore, the second connector includes a positioning steel plate installed between the two second tube segments and the third tube segment. The other end of each of the two second tube segments is provided with a positioning groove, and the third tube segment is provided with a limiting groove. The middle part of the positioning steel plate is inserted into the limiting groove, and the two ends of the positioning steel plate are respectively inserted into the positioning grooves at the other ends of the two second tube segments.

[0009] Furthermore, circumferential stiffeners are fixedly installed on the inner circumference of the arc-shaped steel plate, the two first tube segments, the two second tube segments, and the third tube segment.

[0010] Furthermore, anti-slip rubber pads are fixedly installed on the outer periphery of the arc-shaped steel plate, the two first tube segments, the two second tube segments, and the third tube segment.

[0011] The beneficial effects of this utility model are as follows:

[0012] This utility model uses an arc-shaped steel plate as the basic component, with connecting ear plates fixedly installed at both ends. The first pipe segment is hinged to the arc-shaped steel plate through the connecting ear plates. The second pipe segment is installed at one end of the first pipe segment, and the third pipe segment is installed between the two second pipe segments to form a complete ring structure. The first and second connecting parts fix the connection between each pipe segment, further enhancing the overall stability. This design enables rapid assembly and disassembly without on-site welding, significantly improving emergency response efficiency, reducing construction difficulty and cost, while enhancing structural stability, adapting to complex working conditions, and ensuring the safety of the pipeline interior. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a utility model Figure 1 A three-dimensional sectional view of the structure;

[0015] Figure 3 This is a utility model Figure 1 Another three-dimensional structural sectional view;

[0016] Figure 4 This is another three-dimensional structural diagram of this utility model.

[0017] Reference numerals: 1. Arc-shaped steel plate; 2. Connecting ear plate; 3. First segment; 4. Second segment; 5. Third segment; 6. First connector; 61. Limiting steel plate; 7. Second connector; 71. Positioning steel plate; 9. Rotating arc plate; 10. Rotating shaft pin; 11. Circumferential stiffener; 12. Anti-slip rubber pad. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0019] like Figure 1-4 As shown, an embodiment of this utility model proposes an internal support steel ring for emergency repair of a small-diameter concrete jacking pipe, comprising: an arc-shaped steel plate 1;

[0020] There are two connecting ear plates 2, which are respectively fixedly installed at both ends of the arc-shaped steel plate 1. A first tube segment 3 can be detachably hinged to each of the two connecting ear plates 2. A second tube segment 4 can be detachably installed at one end of each of the two first tube segments 3. A third tube segment 5 can be detachably installed between the two second tube segments 4.

[0021] There are two first connectors 6. The two first connectors 6 are respectively installed on the two second tube segments 4 and the two third tube segments 5, and are used to fix the connection between the first tube segment 3 and the second tube segment 4.

[0022] The second connector 7 is installed between the two second tube segments 4 and the third tube segment 5, and is used to fix the connection between the third tube segment 5 and the two second tube segments 4.

[0023] In the emergency repair operation, the curved steel plate 1 was first used as the basic component, with two connecting lugs 2 fixedly installed at both ends. First pipe segments 3 were detachably hinged to the connecting lugs 2, allowing for flexible splicing of the first pipe segments 3 with the curved steel plate 1. Subsequently, second pipe segments 4 were detachably installed at one end of each of the two first pipe segments 3, further extending the structure of the inner supporting steel ring. Finally, a third pipe segment 5 was detachably installed between the two second pipe segments 4, forming a complete ring structure that fits tightly against the inner wall of the damaged pipeline, providing initial support for the pipeline.

[0024] To ensure a secure and reliable connection between the pipe segments, a first connector 6 is installed between two second pipe segments 4 and two third pipe segments 5 to secure the connection between the first pipe segment 3 and the second pipe segment 4. Simultaneously, a second connector 7 is installed between two second pipe segments 4 and the third pipe segment 5 to secure the connection between the third pipe segment 5 and the two second pipe segments 4. Through the coordinated action of the first connector 6 and the second connector 7, all parts of the inner support steel ring are tightly connected, forming a unified whole. This enhances the structural stability of the inner support steel ring, enabling it to better withstand the internal pressure and external forces of the pipeline, preventing further damage to the damaged pipeline during emergency repairs.

[0025] like Figure 1 As shown, in some embodiments, a rotating arc plate 9 is fixedly installed at the end of the first tube segment 3. The rotating arc plate 9 is located between the two sides of the inner wall of the connecting ear plate 2. A rotating shaft pin 10 is inserted into the connecting ear plate 2. The rotating shaft pin 10 passes through the rotating arc plate 9. One end of the rotating shaft pin 10 is threadedly connected to a limit nut.

[0026] To ensure stable rotation and reliable fixation of the rotating arc plate 9, a pivot pin 10 is inserted into the connecting ear plate 2. The pivot pin 10 passes through the rotating arc plate 9, allowing the rotating arc plate 9 to rotate around the pivot pin 10. Simultaneously, a limit nut is threaded onto one end of the pivot pin 10. By tightening the limit nut, the rotating arc plate 9 can be firmly fixed to the connecting ear plate 2, preventing it from loosening or rotating due to external forces during use. This ensures the overall structural stability of the inner support steel ring and facilitates disassembly when not in use.

[0027] like Figure 1 As shown, in some embodiments, the first connector 6 includes a limiting steel plate 61 installed between the first tube segment 3 and the second tube segment 4. One end of each of the two first tube segments 3 and one end of each of the two second tube segments 4 are provided with slots. The two ends of the limiting steel plate 61 are respectively inserted into the slot at one end of the first tube segment 3 and the slot at one end of the adjacent second tube segment 4.

[0028] The main function of the limiting steel plate 61 is to limit and connect the first tube segment 3 and the second tube segment 4 together through the insertion structures at both ends. The connecting ends of the first tube segment 3 and the second tube segment 4 are designed with slots, the size and shape of which match the ends of the limiting steel plate 61, allowing the limiting steel plate 61 to be precisely inserted into the slots of the first tube segment 3 and the second tube segment 4. When the first tube segment 3 and the second tube segment 4 are joined, the two ends of the limiting steel plate 61 are inserted into the slots at one end of the first tube segment 3 and the adjacent slot at one end of the second tube segment 4, respectively. In this way, the limiting steel plate 61 not only restricts the relative position between the first tube segment 3 and the second tube segment 4, but also provides additional support through its rigid structure, ensuring the strength of the connection.

[0029] After the emergency repair operation is completed, the limiting steel plate 61 can be easily removed from the slot, and the first tube segment 3 and the second tube segment 4 can also be quickly separated, which facilitates the disassembly and recycling of the entire inner support steel ring.

[0030] like Figure 1 As shown, in some embodiments, the second connector 7 includes a positioning steel plate 71 installed between the two second tube segments 4 and the third tube segment 5. The other end of each of the two second tube segments 4 is provided with a positioning groove, and the third tube segment 5 is provided with a limiting groove. The middle part of the positioning steel plate 71 is inserted into the limiting groove, and the two ends of the positioning steel plate 71 are respectively inserted into the positioning grooves at the other end of the two second tube segments 4.

[0031] The third segment 5 has a sloping design on both sides. It is the last segment to be installed. During installation, the third segment 5 can be pushed between the second segments 4 on both sides by jacks or other devices, and a certain amount of compression support can be provided to it, so that the inner support can be completely attached to the pipe wall.

[0032] The main function of the positioning steel plate 71 is to limit and connect the two second tube segments 4 and the third tube segment 5 together through the insertion structure at both ends and the middle part. Through its own rigid structure, it provides additional support for both and ensures the firmness of the connection.

[0033] like Figure 2As shown, in some embodiments, circumferential stiffeners 11 are fixedly installed on the inner circumferential sides of the arc-shaped steel plate 1, the two first tube segments 3, the two second tube segments 4, and the third tube segment 5.

[0034] The circumferential stiffener 11 is a reinforcing member arranged in the circumferential direction. Its main function is to enhance the local stiffness and overall stability of each segment and the arc-shaped steel plate 1. It can effectively prevent deformation or damage caused by excessive local stress and ensure that the inner support steel ring remains stable under complex working conditions.

[0035] like Figure 2 As shown, in some embodiments, anti-slip rubber pads 12 are fixedly installed on the outer periphery of the arc-shaped steel plate 1, the two first tube segments 3, the two second tube segments 4, and the third tube segment 5.

[0036] The anti-slip rubber pad 12 is used to increase the friction between the arc-shaped steel plate 1, the two first pipe segments 3, the two second pipe segments 4 and the third pipe segment 5 and the inner wall of the pipe, thereby improving the stability of the device support.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel ring for assembling a small-diameter concrete pipe jacking pipe, characterized in that, include: Curved steel plate (1); There are two connecting ear plates (2). The two connecting ear plates (2) are respectively fixedly installed at both ends of the arc-shaped steel plate (1). A first tube segment (3) can be detachably hinged on both connecting ear plates (2). A second tube segment (4) can be detachably installed at one end of each of the two first tube segments (3). A third tube segment (5) can be detachably installed between the two second tube segments (4). The first connector (6) is in the form of two, and the two first connectors (6) are respectively installed on the two second tube segments (4) and the two third tube segments (5), which are used to fix the connection between the first tube segment (3) and the second tube segment (4); The second connector (7) is installed between the two second segments (4) and the third segment (5) for fixing the connection between the third segment (5) and the two second segments (4).

2. The assembled small-bore concrete pipe jacking pipe inner support steel ring according to claim 1, characterized in that, A rotating arc plate (9) is fixedly installed at the end of the first tube segment (3). The rotating arc plate (9) is located between the two sides of the inner wall of the connecting ear plate (2). A rotating shaft pin (10) is inserted into the connecting ear plate (2). The rotating shaft pin (10) passes through the rotating arc plate (9). A limit nut is threaded to one end of the rotating shaft pin (10).

3. The internal support steel ring for emergency repair of a prefabricated small-diameter concrete jacking pipe as described in claim 1, characterized in that, The first connector (6) includes a limiting steel plate (61) installed between the first tube segment (3) and the second tube segment (4). One end of each of the two first tube segments (3) and one end of each of the two second tube segments (4) are provided with slots. The two ends of the limiting steel plate (61) are respectively inserted into the slot at one end of the first tube segment (3) and the slot at one end of the adjacent second tube segment (4).

4. The internal support steel ring for emergency repair of a prefabricated small-diameter concrete jacking pipe as described in claim 1, characterized in that, The second connector (7) includes a positioning steel plate (71) installed between the two second tube segments (4) and the third tube segment (5). The other end of each of the two second tube segments (4) is provided with a positioning groove, and the third tube segment (5) is provided with a limiting groove. The middle part of the positioning steel plate (71) is inserted into the limiting groove, and the two ends of the positioning steel plate (71) are respectively inserted into the positioning grooves at the other end of the two second tube segments (4).

5. The assembled small-bore concrete pipe jacking pipe inner support steel ring according to claim 1, characterized in that, The inner circumference of the arc-shaped steel plate (1), the two first tube segments (3), the two second tube segments (4) and the third tube segment (5) are all fixedly installed with circumferential stiffeners (11).

6. The assembled small-bore concrete pipe jacking pipe inner support steel ring according to claim 1, characterized in that, Anti-slip rubber pads (12) are fixedly installed on the outer periphery of the arc-shaped steel plate (1), the two first tube segments (3), the two second tube segments (4), and the third tube segment (5).

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