Pipe-jacking construction pipe piece blocking and escaping device

Abstract

The utility model discloses a pipe piece blocking and unblocking device for pipe jacking construction, and relates to the technical field of pipe jacking piece device structures. The mounting structure comprises a spacing pipe joint, one side of the spacing pipe joint is connected with a first mounting pipe joint, the other side of the spacing pipe joint is connected with a second mounting pipe joint, and positioning grooves are formed in the two sides of the spacing pipe joint. According to the utility model, the first mounting support is fixed on the inner wall of the first mounting pipe joint in a welding manner, and the second mounting support is fixed on the inner wall of the second mounting pipe joint in a welding manner, so that the first mounting support and the second mounting support do not need to be assembled and disassembled back and forth, and the connecting strength is higher; the telescopic device is arranged on the first mounting support and the second mounting support, so that the telescopic device can better adapt to the acting force of the telescopic device on the first mounting support and the second mounting support in the pushing process, the rectangular protrusion is inserted into the rectangular groove, the front end of the telescopic device is inserted into the column sleeve, and personnel can conveniently and rapidly mount and dismount the telescopic device.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe jacking segment device structure, in particular to a device for escaping blocked pipe segments during pipe jacking construction. Background Art

[0002] During the long-distance and large-diameter pipe jacking construction in mountainous areas, the pipe jacking machine passes through different geological conditions. During the process of advancing the pipe segments, it often passes through poor geological conditions, causing the friction-reducing mud around the pipe segments to fail. Loose debris is wrapped around the pipe segments, increasing the resistance to the advancement of the pipe segments. In severe cases, the pipe segments cannot be advanced, and measures can only be taken to solve the problem of pipe segment obstruction. After searching, the patent with application number 201820247726.9 discloses a device for escaping an obstructed pipe segment in pipe jacking construction, including an escaping pipe segment, the escaping pipe segment includes a spacer pipe segment and a tool pipe segment, and an installation pipe segment is arranged between the tool pipe segment and the spacer pipe segment, and a plurality of escaping mechanisms are connected between two adjacent installation pipe segments; the escaping mechanism includes an installation support and an auxiliary fixing member which are slidably clamped by a clamping member, and an expander is detachably connected between the installation supports; the auxiliary fixing member includes a slide groove opened in the pipe wall of the installation pipe segment, a positioning and fixing block is connected to the slide groove by a restoring spring, and a positioning and fixing groove is arranged in cooperation with the positioning and fixing block; an installation groove connected to the middle part of the slide groove is opened on the inner wall of the installation pipe segment, and a top block is slidably clamped in the installation groove.

[0003] However, in the actual use process, the applicant found that before installing the expansion joint, personnel are required to install the mounting brackets used to fix the expansion joint on the inner wall of the installation pipe section one by one, and after use, the mounting brackets are removed from the inner wall of the installation pipe section one by one, which is time-consuming and labor-intensive. In addition, this connection method will make the connection strength between the mounting bracket and the installation pipe section not strong enough, which is not conducive to the mounting bracket to withstand the force brought by the expansion joint during the jacking process. In view of this, we propose a device for escaping blocked pipe segments in jacking construction. Utility Model Content

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model discloses a device for escaping an obstructed pipe segment during pipe jacking construction, comprising a spacer pipe segment, one side of the spacer pipe segment is connected to a first mounting pipe segment, the other side of the spacer pipe segment is connected to a second mounting pipe segment, both sides of the spacer pipe segment are provided with positioning grooves, a first positioning protrusion is arranged on a side of the first mounting pipe segment close to the spacer pipe segment, and the first positioning protrusion is matched and connected with the positioning groove, a second positioning protrusion is arranged on a side of the second mounting pipe segment close to the spacer pipe segment, and the second positioning protrusion is matched and connected with the positioning groove, the first mounting pipe segment and the second mounting pipe segment are far away from the spacer pipe segment A tool pipe section is connected to one side of each of the mounting brackets, a first mounting support is fixedly connected to the inner side wall of the first mounting pipe section, a rectangular protrusion is provided on the side of the first mounting support close to the spacing pipe section, a second mounting support is fixedly connected to the inner side wall of the second mounting pipe section, a column sleeve is provided on the side of the second mounting support close to the spacing pipe section, an expander is placed between the first mounting support and the second mounting support, a base is fixedly connected to the tail of the expander, a rectangular groove is provided at the tail end of the base, and the rectangular groove is cooperatively connected to the rectangular protrusion, and the front end of the expander is inserted into the column sleeve.

[0006] Preferably, the base is fixed on the first mounting support by a first locking bolt, and a first threaded hole is formed in the base.

[0007] Preferably, one end of the first locking bolt passes through the first mounting support and the rectangular protrusion and is then threaded into the first threaded hole.

[0008] Preferably, the front end of the retractor is locked and fixed on the second mounting support by a second locking bolt, and a second threaded hole is formed at the front end of the retractor.

[0009] Preferably, one end of the second locking bolt passes through the second mounting support and is threaded into the second threaded hole.

[0010] Preferably, six first mounting supports are arranged in a circular array on the inner side wall of the first mounting pipe section, and six second mounting supports are arranged in a circular array on the inner side wall of the second mounting pipe section.

[0011] The utility model has the following beneficial effects:

[0012] The utility model discloses a device for escaping an obstructed pipe segment during pipe jacking construction. The device fixes a first mounting support on the inner wall of a first mounting pipe section by welding, and fixes a second mounting support on the inner wall of a second mounting pipe section by welding. There is no need to install and disassemble the first mounting support and the second mounting support back and forth, and the connection strength is stronger, so that it can better adapt to the force of the expansion joint on the first mounting support and the second mounting support during the jacking process. The device inserts a rectangular protrusion into a rectangular groove, and inserts the front end of the expansion joint into a column sleeve, so that personnel can quickly install and disassemble the expansion joint conveniently. The rear end of the expansion joint can be further locked with the first mounting support by a first locking bolt, and the front end of the expansion joint can be further locked with the second mounting support by a second locking bolt, so that the expansion joint can be prevented from falling off between the first mounting support and the second mounting support during the contraction of the expansion joint, causing the expansion joint to be injured. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a cross-sectional view of a device for escaping an obstructed pipe segment in a pipe jacking construction according to the utility model;

[0015] Figure 2 This is a cross-sectional view of a device for escaping a pipe segment from being blocked in a pipe jacking construction according to the utility model after the expansion joint is taken out;

[0016] Figure 3 It is a rear view structural schematic diagram of a telescopic device in a device for escaping an obstructed pipe segment in a pipe jacking construction according to the utility model;

[0017] Figure 4 The utility model is a front structural schematic diagram of an expansion joint in a device for escaping an obstructed pipe segment during pipe jacking construction.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Spacer pipe section; 11. Positioning groove; 2. First mounting pipe section; 21. First positioning protrusion; 3. Second mounting pipe section; 31. Second positioning protrusion; 4. Tool pipe section; 5. First mounting support; 51. Rectangular protrusion; 6. First locking bolt; 7. Expansion device; 71. Base; 711. Rectangular groove; 712. First threaded hole; 72. Second threaded hole; 8. Second mounting support; 81. Column sleeve; 9. Second locking bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 As shown, the utility model provides a technical solution:

[0022] Embodiment 1: A device for escaping an obstructed pipe segment during pipe jacking construction, comprising a spacer pipe segment 1, a first mounting pipe segment 2 being connected to one side of the spacer pipe segment 1, and a second mounting pipe segment 3 being connected to the other side of the spacer pipe segment 1. The spacer pipe segment 1, the first mounting pipe segment 2 and the second mounting pipe segment 3 can be steel structures with relatively high strength. Positioning grooves 11 are provided on both sides of the spacer pipe segment 1. A first positioning protrusion 21 is provided on a side of the first mounting pipe segment 2 close to the spacer pipe segment 1, and the first positioning protrusion 21 is matched and connected with the positioning groove 11 to realize the positioning connection between the spacer pipe segment 1 and the first mounting pipe segment 2. A second positioning protrusion 31 is provided on a side of the second mounting pipe segment 3 close to the spacer pipe segment 1, and the second positioning protrusion 31 is matched and connected with the positioning groove 11 , used to realize the positioning connection between the interval pipe section 1 and the second installation pipe section 3, so that the first installation support 5 can correspond to the second installation support 8 one by one, the first installation pipe section 2 and the second installation pipe section 3 are connected to the tool pipe section 4 on the side away from the interval pipe section 1, and the first installation support 5 is fixedly connected to the inner side wall of the first installation pipe section 2. The first installation support 5 can be fixed to the inner wall of the first installation pipe section 2 by welding, without the need for back and forth installation and disassembly, and the connection strength between the first installation support 5 and the first installation pipe section 2 is also stronger, so as to better adapt to the force of the expansion joint 7 on the first installation support 5 during the jacking process. The first installation support 5 on the inner side wall of the first installation pipe section 2 is arranged in an annular array with six first installation supports. A rectangular protrusion 51 is provided on the side of the seat 5 close to the spacing pipe section 1, and a second mounting support 8 is fixedly connected to the inner wall of the second mounting pipe section 3. The second mounting support 8 can be fixed to the inner wall of the second mounting pipe section 3 by welding, without the need for back and forth installation and disassembly, which also makes the connection strength between the second mounting support 8 and the second mounting pipe section 3 stronger, so as to better adapt to the force of the expansion joint 7 on the second mounting support 8 during the jacking process. Six second mounting supports 8 on the inner wall of the second mounting pipe section 3 are arranged in a circular array, and a column sleeve 81 is provided on the side of the second mounting support 8 close to the spacing pipe section 1. An expansion joint 7 is placed between the first mounting support 5 and the second mounting support 8, and the tail of the expansion joint 7 is fixedly connected to a base 71. A rectangular groove 711 is provided at the rear end of the seat 71, and the rectangular groove 711 is matched and connected with the rectangular protrusion 51. The front end of the telescope 7 is inserted into the column sleeve 81, which can facilitate personnel to quickly install the telescope 7 between a group of first mounting supports 5 and the second mounting supports 8, and can also facilitate personnel to quickly remove the telescope 7 from a group of first mounting supports 5 and the second mounting supports 8. When in use, the telescope 7 is placed between a group of first mounting supports 5 and the second mounting supports 8, and the rectangular protrusion 51 is inserted into the rectangular groove 711 on the rear end base 71 of the telescope 7, and then the telescope 7 is driven to extend so that the front end of the telescope 7 is inserted into the column sleeve 81, and the rapid installation of a telescope 7 can be completed. Repeat the above operation.Six expansion joints 7 are sequentially installed between six groups of first mounting brackets 5 and second mounting brackets 8. After installation, the expansion joints 7 are started to push the second mounting pipe segment 3 to drive the tool pipe segment 4 connected thereto to move, thereby driving the blocked pipe segment to move, thereby cleaning the loose debris wrapped around the blocked pipe segment.

[0023] Embodiment 2: The difference between this embodiment and embodiment 1 is that, the base 71 is locked and fixed on the first mounting support 5 by the first locking bolt 6, and a first threaded hole 712 is provided in the base 71. One end of the first locking bolt 6 penetrates the first mounting support 5 and the rectangular protrusion 51 and is screwed into the first threaded hole 712, so that the rear end of the retractor 7 and the first mounting support 5 can be further connected and fixed. The front end of the retractor 7 is locked and fixed to the second mounting support 8 by the second locking bolt 9. The front end of the retractor 7 is provided with a second threaded hole 72. One end of the second locking bolt 9 penetrates the second mounting support 8 and is screwed into the second threaded hole 72, so that the front end of the retractor 7 and the second mounting support 8 can be further connected and fixed, thereby preventing To prevent the telescope 7 from falling off from between the first mounting support 5 and the second mounting support 8 during the contraction process of the telescope 7, causing the telescope 7 to be damaged, after the telescope 7 is installed and fixed between a group of first mounting support 5 and the second mounting support 8, one end of the first locking bolt 6 can be passed through the first mounting support 5 and the rectangular protrusion 51 and then threaded into the first threaded hole 712, thereby further locking the connection between the rear end of the telescope 7 and the first mounting support 5, and one end of the second locking bolt 9 can be passed through the second mounting support 8 and then threaded into the second threaded hole 72, thereby further locking the connection between the front end of the telescope 7 and the second mounting support 8, thereby preventing the telescope 7 from falling off from between the first mounting support 5 and the second mounting support 8 during the contraction process of the telescope 7, causing the telescope 7 to be damaged.

[0024] Working principle: When in use, place the telescope 7 between a group of first mounting supports 5 and the second mounting supports 8, and insert the rectangular protrusion 51 into the rectangular groove 711 on the base 71 at the rear end of the telescope 7, then drive the telescope 7 to extend, so that the front end of the telescope 7 is inserted into the column sleeve 81, and the rapid installation of a telescope 7 can be completed. After the telescope 7 is installed and fixed between a group of first mounting supports 5 and the second mounting supports 8, one end of the first locking bolt 6 can be passed through the first mounting support 5 and the rectangular protrusion 51 and then screwed into the first threaded hole 712, so as to further lock the connection between the rear end of the telescope 7 and the first mounting support 5, and the second locking bolt 6 can be screwed into the first threaded hole 712. One end of the bolt 9 passes through the second mounting bracket 8 and is screwed into the second threaded hole 72, further locking the connection between the front end of the telescope 7 and the second mounting bracket 8, thereby preventing the telescope 7 from falling off from between the first mounting bracket 5 and the second mounting bracket 8 during the contraction of the telescope 7, causing the telescope 7 to fall and be damaged. Repeat the above operation, and install the six telescopes 7 between the six groups of first mounting brackets 5 and second mounting brackets 8 in turn. After installation, start the telescope 7, which can push the second mounting pipe segment 3 to drive the tool pipe segment 4 connected to it to move, and then drive the blocked pipe segment to move, thereby cleaning the loose debris wrapped around the blocked pipe segment.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments and any equivalent replacement of some of the technical features therein are within the protection scope of the present invention.

Claims

1. A device for escaping a blocked pipe segment during pipe jacking construction, comprising a spacer pipe segment (1), characterized in that: One side of the spacer pipe section (1) is connected to a first mounting pipe section (2), and the other side of the spacer pipe section (1) is connected to a second mounting pipe section (3). Positioning grooves (11) are provided on both sides of the spacer pipe section (1). A first positioning protrusion (21) is provided on the side of the first mounting pipe section (2) close to the spacer pipe section (1), and the first positioning protrusion (21) is matched and connected with the positioning groove (11). A second positioning protrusion (31) is provided on the side of the second mounting pipe section (3) close to the spacer pipe section (1), and the second positioning protrusion (31) is matched and connected with the positioning groove (11). The first mounting pipe section (2) and the second mounting pipe section (3) are both connected to a tool pipe section (4) on the side away from the spacer pipe section (1). A first mounting support (5) is fixedly connected to the inner wall of the pipe section (2); a rectangular protrusion (51) is provided on the side of the first mounting support (5) close to the spacer pipe section (1); a second mounting support (8) is fixedly connected to the inner wall of the second pipe section (3); a column sleeve (81) is provided on the side of the second mounting support (8) close to the spacer pipe section (1); an expander (7) is placed between the first mounting support (5) and the second mounting support (8); a base (71) is fixedly connected to the rear end of the expander (7); a rectangular groove (711) is provided at the rear end of the base (71); the rectangular groove (711) is matched and connected with the rectangular protrusion (51); and the front end of the expander (7) is inserted into the column sleeve (81).

2. A device for escaping a blocked pipe segment in pipe jacking construction according to claim 1, characterized in that: The base (71) is locked and fixed on the first mounting support (5) by means of a first locking bolt (6), and a first threaded hole (712) is provided in the base (71).

3. A device for escaping a blocked pipe segment in pipe jacking construction according to claim 2, characterized in that: One end of the first locking bolt (6) passes through the first mounting support (5) and the rectangular protrusion (51) and is then screwed into the first threaded hole (712).

4. The device for escaping a blocked pipe segment in pipe jacking construction according to claim 1, characterized in that: The front end of the retractor (7) is locked and fixed on the second mounting support (8) by a second locking bolt (9), and a second threaded hole (72) is provided at the front end of the retractor (7).

5. A device for escaping a blocked pipe segment in pipe jacking construction according to claim 4, characterized in that: One end of the second locking bolt (9) passes through the second mounting support (8) and is then threaded into the second threaded hole (72).

6. The device for escaping a blocked pipe segment in pipe jacking construction according to claim 1, characterized in that: Six first mounting supports (5) are arranged in a circular array on the inner side wall of the first mounting pipe section (2), and six second mounting supports (8) are arranged in a circular array on the inner side wall of the second mounting pipe section (3).

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