New pipe construction device using waste pipe

Abstract

The utility model provides a new pipeline construction device of utilizing waste pipeline, wherein the construction device comprises several pushers, several pipe sections constituting a new pipeline, a working well excavated at the import end of the waste pipeline, a receiving well excavated at the export end, at least one hole of a complete concrete frame beam at the middle position of the working well, a sliding support mechanism and a pushing mechanism arranged in the working well, and a support mechanism arranged at the front end of the first pipe section. In the utility model, the assembly and pipe penetration of the new pipeline can be realized without large-area excavation, the new pipeline replaces the waste pipeline, the destructiveness to the original pavement or original building is reduced, the original concrete frame beam above the waste pipeline is not damaged when the working well is excavated, the original concrete frame beam is used as a support, and the construction cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline construction, and in particular relates to a new pipeline construction device that utilizes waste pipelines. Background Technology

[0002] In municipal construction, some underground pipelines age after long-term use and need to be replaced with new ones. Pipe jacking technology is widely used in the repair of underground pipelines, so the technology is relatively mature. However, in current pipe jacking construction, in order to facilitate pipeline construction, the working shaft is excavated as large as possible, and the original concrete frame beams above the old pipelines are also removed, leading to increased construction costs.

[0003] Therefore, how to construct new pipelines in a trenchless environment while retaining the original concrete frame beams is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention aims to propose a new pipeline construction device that utilizes abandoned pipelines, so as to realize the replacement of abandoned pipelines by inserting new pipelines into abandoned pipelines in a trenchless state.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A new pipeline construction device utilizing abandoned pipelines includes several jacking components, several pipe sections constituting the new pipeline, a working well excavated at the inlet end of the abandoned pipeline, and a receiving well excavated at the outlet end. The working well retains the original concrete frame beam on the ground, and has at least one complete hole in the concrete frame beam in the middle of the working well. The length of the pipe section is less than the length of the hole in the concrete frame beam.

[0007] A sliding support mechanism is installed inside the working shaft to support the pipe section. At the same time, a jacking mechanism is installed inside the working shaft to push the pipe section on the sliding support mechanism onto the old pipe for pipe threading operation.

[0008] A support mechanism is installed at the front end of the first pipe section. After the first pipe section enters the old pipe, the front end of the first pipe section is supported by the support mechanism against the inner wall of the old pipe.

[0009] Furthermore, the jacking mechanism includes a wall, two jacks, a jacking frame, and several jacking components. The wall is positioned directly opposite the inlet of the waste pipe, and the two jacks are symmetrically positioned on the wall facing the inlet of the waste pipe 1, with the push rods of the two jacks facing the side wall of the pipe section.

[0010] The jacking frame and jacking component are both placed on the sliding support mechanism, with the jacking frame facing the jack and the jacking component facing the pipe section on the sliding support mechanism. The jack pushes the jacking frame and jacking component to push the pipe section for pipe insertion.

[0011] Furthermore, the jacking frame is a U-shaped frame structure with the opening facing upwards, including two U-shaped plates arranged opposite each other at the front and back, and several stiffening plates connecting the two U-shaped plates;

[0012] The jacking component is a tubular structure, and its diameter is the same as that of the pipe section.

[0013] Furthermore, socket structures are provided between two adjacent pipe sections, between the jacking component and the pipe section, and between two adjacent jacking components.

[0014] Furthermore, the sliding support mechanism includes two slides arranged side by side, with a distance between the two slides and the inlet of the waste pipe. A V-shaped roller is installed between the slide and the inlet of the waste pipe, and the pipe section moves into the waste pipe sequentially through the slide and the V-shaped roller.

[0015] Furthermore, the support mechanism includes two support rollers, which are fixed to the inner wall of the first pipe section by a mounting bracket. The two support rollers symmetrically abut against the inner wall of the waste pipe and support the front end of the first pipe section.

[0016] Compared with existing technologies, the new pipeline construction device utilizing waste pipes described in this utility model has the following advantages:

[0017] (1) In this utility model, the assembly and installation of new pipelines can be achieved without large-scale excavation, so that the new pipelines can replace the old pipelines and reduce the damage to the original road surface or the original buildings. At the same time, the original concrete frame beam above the old pipeline is preserved and not damaged when the working well is excavated, and the original concrete frame beam is used as a support to reduce construction costs.

[0018] (2) In this utility model, the jacking frame adopts a U-shaped frame structure and the jacking component adopts a pipe structure, which reduces the weight of each component and improves the convenience of construction.

[0019] (3) In this utility model, two jacks are used to push the new pipe, and the pushing point acts on the pipe wall of the new pipe, which improves the stability of the new pipe pushing operation. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1This is a schematic diagram of a new pipeline construction device utilizing waste pipes, as described in an embodiment of this utility model.

[0022] Figure 2 This is a front view of the support mechanism in an embodiment of this utility model;

[0023] Figure 3 This is a top view of the support mechanism in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the supporting rollers supporting the pipe section of the waste pipe in an embodiment of this utility model;

[0025] Figure 5 This is a perspective view of the pusher frame in an embodiment of this utility model;

[0026] Figure 6 This is a front sectional view of the pusher component in an embodiment of this utility model;

[0027] Figure 7 This is a diagram showing the position of the jack pushing component in an embodiment of this utility model;

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-Scrap pipe; 2-Wall; 4-Jack; 5-Working shaft; 6-Pushing frame; 61-U-shaped plate; 62-Connecting plate; 63-Firming plate; 64-Positioning sleeve; 641-Insertion port; 7-Pushing component; 71-Outer conical surface structure; 72-Conical socket structure; 8-Pipe section; 9-Slide rail; 10-Bracket; 11-Supporting mechanism; 111-Arc plate; 112-Supporting roller; 113-Roller frame; 12-V-shaped roller; 13-Concrete frame beam; 131-Hole. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figure 1 As shown, a new pipeline construction device utilizing abandoned pipelines includes several jacking components 7, a jacking frame 6, and several pipe sections 8 forming the new pipeline. The pipe sections 8 are steel pipe structures. A working well 5 is excavated at the inlet end of the abandoned pipeline 1, and a receiving well (not shown in the figure) is excavated at the outlet end. The working well 5 is used to arrange the jacking mechanism and a sliding support mechanism to support the pipe sections, jacking frame 6, and jacking components 7. The pipe sections are welded within the working well 5 to form the new pipeline. The jacking mechanism pushes the new pipeline into the abandoned pipeline 1. The first pipe section of the new pipeline extends to the receiving well at the outlet of the abandoned pipeline. The receiving well is also the working well for the jacking construction of the next section of the new pipeline. Similarly, the working well at the inlet of the abandoned pipeline is also the receiving well for the jacking construction of the previous section of the new pipeline. In this embodiment... Figure 1The assembly, jacking, and insertion of the new pipeline are completed within the working shaft 5 at the inlet end of the old pipeline 1. At the receiving shaft at the outlet end of the old pipeline 1, the first pipe section and the next section of the new pipeline are assembled. This assembly connects to the previous section of the new pipeline within the working shaft 5, and so on, until all sections of the new pipeline are assembled, forming a new pipeline to replace the entire old pipeline. During excavation, the working shaft 5 retains the original concrete frame beam 13 on the ground. All three holes 131 of the concrete frame beam 13 are fully exposed through the working shaft 5, allowing the concrete frame beam 13 to be preserved. After construction, the concrete frame beam 13 can still be used for support strength, improving the stability and support strength of the pipeline construction.

[0032] The length of pipe section 8 is slightly smaller than the length of the hole 131 in the concrete frame beam 13. This allows pipe section 8 to be hoisted into the working well through the hole, while minimizing the number of times the pipe section needs to be hoisted and increasing the construction speed.

[0033] A sliding support mechanism is installed inside the working shaft 5 to support the pipe section 8. At the same time, a jacking mechanism is installed inside the working shaft 5. The jacking mechanism pushes the pipe section 8 on the sliding support mechanism to perform the pipe insertion operation on the waste pipe 1. Every time the pipe section 8 moves into the working shaft and vacates a pipe section installation space, the jacking mechanism retracts, and a new pipe section is added to the sliding support mechanism. The new pipe section is welded to the original pipe section, and the jacking mechanism pushes again until the first pipe section 8 passes through the waste pipe 1 and enters the receiving shaft.

[0034] The sliding support mechanism includes two slides 9 set at the working well 5 away from the inlet of the waste pipe 1, and a V-shaped roller 12 set between the two slides 9 and the inlet of the waste pipe 1. The centerline position of the pipe section remains unchanged when it moves within the waste pipe 1 by the slides 9, the V-shaped roller 12 and the waste pipe 1.

[0035] Since the sliding support mechanism is arranged outside the old pipe, in order to improve the smooth movement of the pipe after it enters the old pipe and prevent the new pipe from falling down due to gravity, a support mechanism 11 is set at the front end of the first pipe section 8. After the first pipe section 8 enters the old pipe 1, the front end of the first pipe section 8 is supported on the inner wall of the old pipe 1 by the support mechanism 11.

[0036] Supporting institutions such as Figure 2 , Figure 3 As shown, it includes two supporting rollers 112, which are fixed to the inner wall of the first pipe section 8 by a mounting bracket. The mounting bracket is preferably an arc-shaped plate 111 corresponding to the inner wall of the pipe section. Each of the two supporting rollers 112 is fixed to the inner surface of the arc-shaped plate 111 by a roller bracket 113. During assembly, the arc-shaped plate 111 can be fixed to the inner wall of the pipe section 8 by spot welding, such as... Figure 4As shown, at this time, the center line of the support roller 112 is perpendicular to the radius of the pipe section 8 in space. The two support rollers 112 are located in front of the first pipe section 8 and symmetrically abut against the inner wall of the old pipe 1. Preferably, the central angle between the two support rollers 112 and the center of the pipe section 8 is 90° to 120°. The two support rollers support the first pipe section 8, which is to support the new pipe and ensure the stability of the new pipe.

[0037] The jacking mechanism includes a wall 2, two jacks 4, a jacking frame 6, and several jacking components 7. The wall 2 is positioned directly opposite the inlet of the old pipe 1, and the back of the wall 2 is close to the wall of the working shaft 5 facing the inlet of the old pipe. The two jacks 4 are symmetrically positioned on the left and right sides in front of the wall 2, that is, on the wall facing the inlet of the old pipe 1. The push rods of the two jacks 4 are directly opposite the side wall of the pipe section 8 to ensure that the jacks 4 can stably jack the pipe section 8 through the jacking frame 6 and the jacking components 7.

[0038] like Figure 5 As shown, the jacking frame 6 is a U-shaped frame structure with its opening facing upwards. The width of the jacking frame 6 is greater than the outer diameter of the jacking component 7, and the opening width of its U-shaped opening is smaller than the inner diameter of the jacking component 7. This ensures that the jacking frame 6 can abut against the left and right ends of the jacking component 7, thus ensuring that the jacking operation can be carried out. Specifically, the jacking frame 6 includes two U-shaped plates 61 arranged front and rear facing each other, and a connecting plate 62 connecting the two U-shaped plates 61. The connecting plate 62 is located on the inner side of the edge of the U-shaped plates 61, and the two U-shaped plates 61 are connected by several stiffening plates 63 on the outer side of the connecting plate 62. This structure improves the strength of the jacking frame 6 and reduces its weight, making it easier to hoist and move the jacking frame 6, and also facilitating the jacking operation of the jack 4.

[0039] Two symmetrical positioning sleeves 64 are arranged on the left and right sides of the jacking frame 6 facing the jack 4. The insertion port 641 of the positioning sleeve 64 is a conical insertion port to facilitate the insertion of the jack's push rod. During jacking, the push rod of the jack 4 extends into the positioning sleeve 64 and abuts against the jacking frame 6. At this time, the position of the positioning sleeve 64 corresponds exactly to the side wall of the pipe section. Figure 6 As shown. The positioning sleeve 64 defines the relative position between the jacking frame 6 and the two jacks 4, thereby defining the position of the jacking frame 6 relative to the jacking component 7, so that the jacking frame 6 is stable on the two slide rails 9. It includes two U-shaped plates 61 arranged front and rear facing each other, and several stiffening plates 63 connecting the two U-shaped plates 61.

[0040] To facilitate alignment welding, a tapered socket structure is installed between pipe sections 8. That is, one end of pipe section 8 has a tapered socket opening, and the outer circumference of the other end has a corresponding tapered socket surface. When the pipe section is hoisted in, its tapered socket surface and tapered socket opening are placed rearward on the sliding support mechanism. The jacking component 7 is a pipe structure, such as... Figure 7As shown, its pipe diameter is the same as that of pipe section 8. The outer circumferential surface of the front end of the jacking member 7 is provided with an outer conical surface structure 71 corresponding to the conical socket of pipe section 8, and the inner circumferential surface of the rear end of the jacking member 7 is provided with a conical socket structure 72 corresponding to the outer conical surface structure 71. This structure allows for the formation of socket mechanisms between pipe sections, between jacking members 7 and pipe sections, and between jacking members, improving jacking stability.

[0041] The following is an explanation of the implementation method for the new pipeline construction.

[0042] A construction method for a new pipeline construction device utilizing abandoned pipelines includes the following steps:

[0043] S10. Determine the length of pipe section 8 based on the length of the hole 131 in the concrete frame beam 13 at the location of the abandoned pipeline. The length of pipe section 8 should be slightly smaller than the length of the hole to facilitate the hoisting of the pipe section. Determine the number of pipe sections 8 based on the length of the abandoned pipeline to ensure that the new pipeline formed by welding the pipe sections can pass through the abandoned pipeline and extend into the receiving well. Determine the length of the jacking component 7 based on the design stroke of the jack, and determine the number of jacking components 7 based on the length of pipe section 8. Preferably, the stroke distance of jack 4 is its maximum stroke, and the length and size of the jacking component 7 are the same as the stroke distance of jack 4. Determine the U-shaped jacking frame 6 based on the dimensions of pipe section 8.

[0044] S20, Excavation of the working shaft and receiving shaft:

[0045] Excavate a working well at the inlet end of the abandoned pipeline. During excavation, the original concrete frame beam on the ground should be preserved. The excavation length of the working well should ensure that there is at least one complete hole 131 in the middle of the working well to facilitate the hoisting of the pipe section.

[0046] Excavate a receiving well at the outlet end of the abandoned pipeline;

[0047] It should be noted that the "waste pipe" in this utility model refers to a section of the entire waste pipeline. Figure 1 The working well excavated at the inlet of the old pipeline 1 also serves as a receiving well for the repair of the previous section of the old pipeline, and the receiving well described in this utility model also serves as a working well for the repair of the next section of the old pipeline. The excavation and function of the working well and the receiving well are common technical means in trenchless pipeline repair construction, and will not be described in detail here.

[0048] S30. Clean the inside of abandoned pipe 1:

[0049] Use drill bits or other cleaning equipment such as sweepers, blowers or vacuum cleaners to clean the inside of the old pipes, making the inside of the old pipes clean.

[0050] S40. Construction of the jacking mechanism and sliding support mechanism inside the working shaft:

[0051] Construction of the jacking mechanism: A wall 2 is set up with its back side close to the cavity wall of the working well facing the opening of the waste pipe 1. Two jacks 4 are symmetrically set up on the left and right sides in front of the wall 2 facing the waste pipe 1. The jacking end of the jack 4 leaves a distance in the horizontal direction from the complete hole 131 to facilitate the hoisting of the jacking component 7 and the jacking frame 6.

[0052] Construction of the sliding support mechanism: The sliding support mechanism is used to support the pipe section 8, the jacking component 7, and the jacking frame 6, and can move until the pipe section is smoothly moved into the waste pipe by the sliding support mechanism. Preferably, the sliding support mechanism includes two slide rails 9 and V-shaped rollers 12. The two slide rails 9 are arranged side by side and close to the wall 2. The two slide rails 9 are supported by brackets 10 in the working well 5. The length of the slide rails 9 should be sufficient to ensure the support requirements for the jacking frame and several jacking components 7 to be placed in sequence. The V-shaped rollers 12 are arranged between the slide rails 9 and the inlet of the waste pipe 1. The number of V-shaped rollers 12 depends on the specific construction conditions, and should be sufficient to ensure that the pipe section can smoothly move from the slide rails to the V-shaped rollers 12, and then smoothly move from the V-shaped rollers 12 into the waste pipe 1.

[0053] S50. Two support rollers 112 are symmetrically arranged at the front end of the first pipe section 8. Then, the first pipe section 8 is hoisted into the working well 1 through the middle complete hole 131 and supported by two slide rails 9. The first jacking component 7 and the jacking frame 6 are hoisted onto the sliding support mechanism in sequence through the hole 131 corresponding to the jack 4. The jacking frame 6 is directly opposite the jack and the first jacking component 7 is directly opposite the first pipe section 8.

[0054] S60, the jack 4 pushes the jacking frame 6, which drives the first jacking component 7 to push the first pipe section 8 to move a stroke distance in the direction of the old pipe. This stroke distance is the extension length set by the jack. Preferably, the extension length is the maximum extension length of the jack.

[0055] S70, the jack 4 push rod retracts, the pusher 7 is added between the pusher frame 6 and the pusher 7, the jack 4 pushes again, so that the first pipe section 8 moves forward another stroke distance;

[0056] Repeat this step until space is available in the working well for the installation of the second pipe section;

[0057] S80. Lift the jacking frame 6 and jacking component 7 away from the sliding support mechanism. Repeat steps S50, S60 and S70 to lift and push the second pipe section 8, jacking frame 6 and jacking component 7 until space is left in the working shaft for the installation of the third pipe section. Note that after the second pipe section 8 is lifted in, it is welded to the first pipe section 8. If it is inconvenient to weld the second pipe section to the first pipe section immediately after it is lifted in, a jacking operation can be performed first to make the second pipe section 8 and the first pipe section 8 interlock and then welded.

[0058] Repeat this process to complete the hoisting, welding, and jacking of several pipe sections within the working well 5. This means completing the assembly of the new pipeline and the installation of the pipe inside the old pipeline. At this point, the front end of the first pipe section 8 extends into the receiving well set at the outlet end of the old pipeline to connect with the new pipeline that will replace the next section of the old pipeline.

[0059] When the new pipe enters the old pipe 1 for pipe threading, the first pipe section 8 is supported by two support rollers 112 at the front end, which supports the front end of the new pipe inside the old pipe. Meanwhile, the rear end of the new pipe is always supported by V-shaped rollers 12, ensuring the stability of the new pipe threading operation.

[0060] After the old pipe section 1 is installed, remove the jack 4 and the wall 2. Then, hoist another pipe section 8 and connecting pipe section onto the sliding support mechanism. Use the newly installed pipe section 8 and connecting pipe section to connect the new pipe (which has been installed) that replaced the old pipe section to the inlet end of the new pipe section. Then, fill the working well. This operation is a routine operation and will not be described in detail.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new pipeline construction device utilizing abandoned pipelines, characterized in that: Includes several jacking components (7), several pipe sections (8) forming a new pipeline, a working well (5) excavated at the inlet end of the old pipeline (1), a receiving well excavated at the outlet end, and the working well (5) retains the original concrete frame beam (13) on the ground, and at least one complete hole (131) of the concrete frame beam (13) in the middle of the working well (5), and the length of the pipe section (8) is less than the length of the hole (131) of the concrete frame beam (13); A sliding support mechanism is installed in the working well (5) to support the pipe section (8). At the same time, a jacking mechanism is installed in the working well (5). The jacking mechanism pushes the pipe section (8) on the sliding support mechanism to the waste pipe for pipe threading operation. A support mechanism (11) is provided at the front end of the first pipe section (8). After the first pipe section (8) enters the waste pipe (1), the front end of the first pipe section (8) is supported on the inner wall of the waste pipe (1) by the support mechanism (11).

2. The new pipeline construction device utilizing abandoned pipelines according to claim 1, characterized in that: The jacking mechanism includes a wall (2), two jacks (4), a jacking frame (6) and several jacking components (7). The wall (2) is set directly opposite the inlet of the waste pipe (1). The two jacks (4) are symmetrically set on the left and right sides of the wall (2) facing the inlet of the waste pipe (1), and the push rods of the two jacks (4) are directly opposite the side wall of the pipe section (8). The jacking frame (6) and jacking component (7) are both placed on the sliding support mechanism. The jack (4) pushes the pipe section (8) through the jacking frame (6) and jacking component (7) to pass through the pipe.

3. The new pipeline construction device utilizing abandoned pipelines according to claim 2, characterized in that: The jacking frame (6) is a U-shaped frame structure with the opening facing upward, including two U-shaped plates (61) arranged in front and behind each other, and several stiffening plates (63) connecting the two U-shaped plates (61); The jacking component (7) is a pipe structure, and its pipe diameter is the same as that of the pipe section (8).

4. The new pipeline construction device utilizing abandoned pipelines according to claim 3, characterized in that: Socket structures are provided between two adjacent pipe sections (8), between the jacking member (7) and the pipe section (8), and between two adjacent jacking members (7).

5. The new pipeline construction device utilizing abandoned pipelines according to claim 1, characterized in that: The sliding support mechanism includes a slide rail (9), two slide rails (9) are arranged side by side, and the two slide rails (9) are spaced apart from the inlet of the waste pipe (1). A V-shaped roller (12) is set between the slide rail (9) and the inlet of the waste pipe (1). The pipe section moves into the waste pipe (1) in sequence from the slide rail (9) and the V-shaped roller (12).

6. The new pipeline construction device utilizing abandoned pipelines according to claim 1, characterized in that: The support mechanism (11) includes two support rollers (112). The two support rollers (112) are fixed to the inner wall of the first pipe section (8) by the mounting bracket. The two support rollers (112) symmetrically abut against the inner wall of the waste pipe (1) and support the front end of the first pipe section (8).

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