Long-distance pipe jacking and stretching connecting equipment

Abstract

The utility model relates to the field of pipe jacking, and particularly discloses a long-distance pipe jacking and stretching connecting device which comprises a machine frame, a propelling sliding frame, a propelling disc and a propelling oil cylinder for controlling the propelling disc to horizontally slide, the propelling oil cylinder and the propelling sliding frame are both installed on the machine frame, and the propelling disc is horizontally and actively installed on the propelling sliding frame. The limiting supporting units can abut against the inner wall of the end of the jacking pipe, and the limiting supporting units are installed on the end face, away from the thrust oil cylinder, of the thrust disc and can be adjusted in a sliding mode in the radial direction of the thrust disc. According to the scheme, the distance between the multiple limiting supporting units and the center of the propelling disc is conveniently adjusted by adjusting the limiting supporting units, so that the limiting supporting units can conduct limiting supporting and jacking stretching on jacking pipes of different specifications, and the adaptability of the long-distance jacking pipe jacking stretching connecting equipment in the using process is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe jacking technology, and in particular to a long-distance pipe jacking extension connection device. Background Technology

[0002] Pipe jacking in sewer systems is a trenchless or minimally excavated pipeline laying technology. It uses the jacking force generated by jacking equipment to overcome the friction between the pipeline and the surrounding soil, pushing the pipeline into the ground at the designed slope. It has advantages such as not excavating the ground, not demolishing or damaging ground buildings, not affecting traffic, and construction is not affected by climate and environment. It is particularly suitable for trenchless laying of large and medium diameter pipes and has comprehensive functions of economy, efficiency and environmental protection.

[0003] When extending pipe fittings, a pipe jacking machine is used to excavate underground. The pipe jacking machine includes a main structure, a propulsion system, a drilling system, a hydraulic system, an electrical system, and other auxiliary systems. The propulsion system includes a propulsion groove, a propulsion disc, and propulsion cylinders. During pipe extension, the propulsion disc is located at the front end of the propulsion groove. Through the action of the hydraulic cylinders, the pipe is extended into the rock strata. However, when the end of the propulsion disc abuts against the end face of the pipe, the flange on the propulsion disc abuts against the inner wall of the pipe end. The flange on the propulsion disc can only provide limiting support for pipes of the same specification. However, when the propulsion system faces pipes of different diameters such as 200mm, 300mm, 400mm, 500mm, and 600mm, the propulsion disc is difficult to install with various pipe specifications. In this case, replacing the propulsion disc or the entire propulsion system would lead to higher construction costs. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a long-distance pipe jacking extension connection device to solve the problem that the propulsion plate is difficult to match with various specifications of pipe jacking. If the propulsion plate or the entire propulsion system is replaced, the construction cost will be high.

[0005] To achieve the above objectives, the basic solution of this utility model is as follows: A long-distance pipe jacking and extension connection device includes a frame, a propulsion sliding frame, a propulsion plate, and a propulsion cylinder for controlling the horizontal sliding of the propulsion plate. Both the propulsion cylinder and the propulsion sliding frame are mounted on the frame. The propulsion plate is horizontally and actively mounted on the propulsion sliding frame. The device also includes:

[0006] Several limiting support units that can abut against the inner wall of the jacking pipe end are installed on the end face of the propulsion plate away from the propulsion cylinder. All of the limiting support units can slide and adjust along the radial direction of the propulsion plate.

[0007] The technical principle of this utility model is as follows: When using the long-distance pipe jacking extension connection equipment, the distance between several limiting support units and the center of the propulsion plate can be easily adjusted by adjusting the limiting support unit. This allows the limiting support unit to provide limiting support and extension for pipes of different specifications, thereby improving the adaptability of the long-distance pipe jacking extension connection equipment and reducing the construction cost of pipes of different specifications during extension construction.

[0008] Furthermore, the limiting support unit includes:

[0009] The support column has its axis parallel to the axis of the propulsion disc, and its side wall can abut against the inner wall of the end of the jacking pipe.

[0010] Radial adjustment unit, which is mounted on the propulsion plate;

[0011] The connecting bolts are installed on the radial adjustment part and are detachably connected to the support column by threads.

[0012] With the above settings, the radial adjustment unit can drive the connecting bolts and support columns to move radially along the propulsion plate, thereby adjusting the position of the connecting bolts and support columns. This allows the position of the support columns in several limiting support units to be adjusted simultaneously, so that the support columns are closer to or further away from the center of the propulsion plate. As a result, the support columns can be adapted to and offset jacking pipes of different inner diameters, and several support columns can stably limit and support the jacking pipe.

[0013] Furthermore, the radial adjustment part includes an adjusting threaded rod, and an adjustment cavity for installing the adjusting threaded rod is provided radially inside the propulsion disk. One end of the adjusting threaded rod is located inside the inner ring of the propulsion disk, and the other end of the adjusting threaded rod passes through the inner wall of the propulsion disk and is located inside the adjustment cavity. A threaded connection hole for threaded connection with the adjusting threaded rod is provided on the end of the adjustment cavity of the propulsion disk away from the center.

[0014] The adjusting cavity of the propulsion disc is provided with a sliding groove on the end face away from the propulsion cylinder, which allows the connecting bolt to slide along the adjustment radial direction of the disc. The middle part of the adjusting threaded rod is rotatably connected to the end of the connecting bolt. The middle part of the adjusting threaded rod is provided with a groove or protrusion that limits the end of the connecting bolt.

[0015] With the above settings, when adjusting the position of the connecting bolt and the support column, the adjusting threaded rod is turned so that it moves within the threaded connection hole and the adjusting cavity. At this time, the groove or protrusion of the adjusting threaded rod can work together to move the connecting bolt. The adjusting threaded rod can cooperate with the threaded connection hole to lock the position of the connecting bolt and the support column, making the position adjustment of the connecting bolt and the support column convenient and stable.

[0016] Furthermore, the radial adjustment section also includes a locking nut, which is threadedly connected to the adjusting threaded rod, and the locking nut can abut against the inner wall of the propulsion disc.

[0017] With the above settings, the locking nut can stably lock the adjusting threaded rod onto the push plate, so that the end of the push plate away from the threaded connection hole can also be fixed, making the support of the jacking pipe at the connecting bolt and support column more stable.

[0018] Furthermore, the longitudinal section profile of the chute is keyway-shaped, and the connecting bolts can abut against the end of the chute.

[0019] With the above settings, the two ends of the chute can limit the movement limit positions of the connecting bolt and the support column. When the connecting bolt abuts against the end of the chute, the connecting bolt can fit more stably against the inner wall of the propulsion disk chute, so that the limiting position of the connecting bolt and the support column is stable.

[0020] Furthermore, an anti-vibration and anti-slip pad is provided between the locking nut and the inner wall of the propulsion disc.

[0021] With the above settings, when the jacking pipe is installed on the support column, the connecting bolts and the support column will be subjected to some vibration force. When the vibration force is transmitted to the locking nut through the adjusting threaded rod, the anti-vibration and anti-slip pad can absorb part of the vibration force, making the cooperation of the adjusting threaded rod, connecting bolts, support column, locking nut and propulsion plate more stable.

[0022] Furthermore, a dial is coaxially fixed to one end of the adjusting threaded rod near the center of the push plate.

[0023] The above settings make it easier for a person to apply force to the dial, making the rotation adjustment of the adjusting screw rod more convenient and labor-saving. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the axial direction of a long-distance jacking pipe extension connection device in an embodiment of this utility model.

[0025] Figure 2 This is a structural schematic diagram of a long-distance pipe jacking and connecting device in an embodiment of this utility model, viewed from the main view.

[0026] Figure 3 This is a partial longitudinal sectional view of a single limiting support unit in a long-distance pipe jacking connection device according to an embodiment of the present utility model.

[0027] In the above-mentioned attached figures: frame 10, propulsion sliding frame 20, propulsion plate 30, adjustment cavity 301, slide groove 302, threaded connection hole 303, propulsion cylinder 40, limit support unit 50, support column 501, connecting bolt 502, adjusting threaded rod 503, locking nut 504, anti-vibration and anti-slip pad 505, dial 506. Detailed Implementation

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0029] This embodiment is basically as follows: Figure 1 , Figure 2 and Figure 3 As shown, this utility model embodiment proposes a long-distance pipe jacking and extension connection device, including a frame 10, a propulsion sliding frame 20, a propulsion disc 30, a propulsion cylinder 40 for controlling the horizontal sliding of the propulsion disc 30, and several limiting support units 50 that can abut against the inner wall of the end of the pipe. Figure 1 As shown, the propulsion cylinder 40 and the propulsion sliding frame 20 are both mounted on the frame 10. The propulsion disk 30 is horizontally and actively mounted on the propulsion sliding frame 20. The left end of the propulsion cylinder 40 is fixedly connected to the propulsion disk 30 by bolts. Several limiting support units 50 are mounted on the left end face of the propulsion disk 30. All of the limiting support units 50 can slide and adjust along the radial direction of the propulsion disk 30.

[0030] like Figure 2 and Figure 3 As shown, the limiting support unit 50 includes a support column 501, a radial adjustment part, and a connecting bolt 502. The radial adjustment part includes an adjusting threaded rod 503 and a locking nut 504. The axis of the support column 501 is parallel to the axis of the propulsion disk 30, and the side wall of the support column 501 can abut against the inner wall of the end of the jacking pipe. The connecting bolt 502 is detachably threaded to the support column 501. An adjusting cavity 301 for installing the adjusting threaded rod 503 is provided radially inside the propulsion disk 30. One end of the adjusting threaded rod 503 is located on the propulsion disk 30. Inside the inner ring, the other end of the adjusting threaded rod 503 passes through the inner wall of the push plate 30 and is located in the adjusting cavity 301; the adjusting cavity 301 of the push plate 30 has a threaded connection hole 303 for threaded connection with the adjusting threaded rod 503 at the end away from the center; at the same time, the end face of the adjusting cavity 301 of the push plate 30 away from the push cylinder 40 has a sliding groove 302 for the connecting bolt 502 to slide along the adjusting radial direction of the plate, the longitudinal section profile of the sliding groove 302 is keyway-shaped, and the connecting bolt 502 can abut against the end of the sliding groove 302; Figure 3 As shown, the middle part of the adjusting threaded rod 503 is rotatably connected to the end of the connecting bolt 502. The middle part of the adjusting threaded rod 503 is provided with a groove that abuts against the end of the connecting bolt 502. The groove is annular and coaxially arranged with the middle part of the adjusting threaded rod 503.

[0031] At the same time, such as Figure 3 As shown, the locking nut 504 is threadedly connected to the adjusting threaded rod 503, and the locking nut 504 can abut against the inner wall of the push plate 30. An anti-vibration and anti-slip pad 505 is provided between the locking nut 504 and the inner wall of the push plate 30.

[0032] In addition, such as Figure 3As shown, a dial 506 is integrally formed on one end of the adjusting threaded rod 503 near the center of the push plate 30.

[0033] In this embodiment, when using the long-distance pipe jacking extension connection device, first adjust the limiting support unit 50 according to the inner diameter of the pipe. Hold the dial 506, which drives the adjusting threaded rod 503 to rotate forward. The adjusting threaded rod 503 moves along the threaded connection hole 303 and the adjusting cavity 301 towards the center of the pushing plate 30. At this time, the connecting bolt 502 and the support column 501 on the adjusting threaded rod 503 rotate relative to the adjusting threaded rod 503. Simultaneously, under the limitation of the slide groove 302, the connecting bolt 502 and the support column 501 move along the slide groove 302 towards the center of the pushing plate 30, reducing the distance between the support column 501 and the center of the pushing plate 30. Then, tighten the locking nut 504 on the adjusting threaded rod 503. The locking nut 504 moves closer to the inner wall of the pushing plate 30, causing the anti-vibration and anti-slip pad... 505 is pressed between the locking nut 504 and the inner wall of the push plate 30, thereby reducing the spacing between the support columns 501 and stabilizing the position of the support columns 501. At this time, the support columns 501 can adapt to the installation limit of the jacking pipe with a smaller inner diameter. Conversely, first tighten the locking nut 504 on the adjusting threaded rod 503. The locking nut 504 moves along the adjusting threaded rod 503 towards the center of the push plate 30. The person holds the dial 506, and the dial 506 drives the adjusting threaded rod 503 to rotate in the opposite direction, which drives the connecting bolt 502 and the support columns 501 to move along the slide groove 302 away from the center of the push plate 30. This increases the spacing between the support columns 501 and stabilizes the position of the support columns 501, allowing the support columns 501 to adapt to the installation limit of the jacking pipe with a larger inner diameter.

[0034] When the jacking pipe is installed onto several support columns 501, the inner wall of the jacking pipe abuts against the outer wall of the several support columns 501, and the several support columns 501 can limit and support the jacking pipe; when the jacking pipe is extended, the propulsion cylinder 40 is activated to extend, and the propulsion cylinder 40 pushes the propulsion disc 30 to slide stably along the propulsion sliding frame 20, and the propulsion disc 30 stably extends the jacking pipe to the installation position.

[0035] When the construction site changes and the inner diameter of the jacking pipe changes, the distance between several support columns 501 and the center of the propulsion plate 30 can be easily adjusted by adjusting the limiting support unit 50. This allows the support columns 501 to provide limiting support and jacking for jacking pipes of different specifications, improving the adaptability of the long-distance jacking pipe extension connection equipment during use and reducing the construction cost of jacking pipes of different specifications during extension construction.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A long-distance pipe jacking and extension connection device, comprising a frame, a propulsion sliding frame, a propulsion disc, and a propulsion cylinder for controlling the horizontal sliding of the propulsion disc, wherein the propulsion cylinder and the propulsion sliding frame are both mounted on the frame, and the propulsion disc is horizontally and actively mounted on the propulsion sliding frame, characterized in that, Also includes: A plurality of limiting support units that can abut against the inner wall of the end of the jacking pipe, wherein the plurality of limiting support units are installed on the end face of the propulsion disc away from the propulsion cylinder, and the plurality of limiting support units can be adjusted to slide radially along the propulsion disc; The limiting support unit includes: A support column, the axis of which is parallel to the axis of the propulsion disk, and the side wall of the support column can abut against the inner wall of the end of the jacking pipe; A radial adjustment unit, which is mounted on the propulsion disk; A connecting bolt is installed on the radial adjustment part and is detachably threaded to the support column. The radial adjustment part includes an adjusting threaded rod. An adjustment cavity for installing the adjusting threaded rod is provided radially inside the propulsion disk. One end of the adjusting threaded rod is located inside the inner ring of the propulsion disk, and the other end of the adjusting threaded rod passes through the inner wall of the propulsion disk and is located inside the adjustment cavity. A threaded connection hole for threaded connection with the adjusting threaded rod is provided on the end of the adjustment cavity of the propulsion disk away from the center. The adjusting cavity of the propulsion disc is provided with a sliding groove on the end face away from the propulsion cylinder for the connecting bolt to slide and adjust radially along the disc. The middle part of the adjusting threaded rod is rotatably connected to the end of the connecting bolt. The middle part of the adjusting threaded rod is provided with a groove or protrusion that limits the end of the connecting bolt. The radial adjustment part also includes a locking nut, which is threadedly connected to the adjusting threaded rod, and the locking nut can abut against the inner wall of the push plate.

2. The long-distance pipe jacking and connection device as described in claim 1, characterized in that, The longitudinal section of the slide is keyway shaped, and the connecting bolts can abut against the end of the slide.

3. The long-distance pipe jacking and connection device as described in claim 1, characterized in that, An anti-vibration and anti-slip pad is provided between the locking nut and the inner wall of the push plate.

4. The long-distance pipe jacking and connection device as described in claim 1, characterized in that, A dial is coaxially fixed to one end of the adjusting threaded rod near the center of the push plate.

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