Portable hole guiding, clearing and transporting device for pipe roofing engineering

By combining segmented cutting and hoisting mechanisms, the problem of drilling rod pre-hole preparation in underground pipe jacking projects was solved, achieving efficient pre-hole preparation and removal, and reducing construction difficulty and cost.

CN223938078UActive Publication Date: 2026-02-24TWENTY METALLURGICAL GRP (SHENZHEN) CONSTR DEV CO LTD +1
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Patent Information

Application Number
CN202520835103.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-02-24
Estimated Expiration
2035-04-28

AI Technical Summary

Technical Problem

The existing method of using drill rods for pre-hole drilling in underground pipe jacking projects suffers from insufficient drilling power, low efficiency, or high difficulty. In particular, it is ineffective for pre-hole drilling when encountering reinforced concrete structures such as cast-in-place piles, and cleaning and transportation are also difficult.

Method used

The concrete support structure is divided into sections by a segmented cutting mechanism to form a support area and a cleaning area. Support plates and hoisting hooks are used for fixing and hoisting. Holes are drilled with water drills and a crane is used for overall hoisting and cleaning.

Benefits of technology

It enables effective pre-drilling in reinforced concrete structures such as cast-in-place piles, improving construction efficiency, reducing operational difficulty and cost, simplifying on-site operations, and saving time.

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Abstract

The utility model provides a pipe roofing engineering convenient hole guiding and clearing and transporting device which comprises a block cutting mechanism used for cutting and separating concrete supporting structures in a block mode to form a supporting area and an area to be cleared and transported. The supporting plate is arranged and connected to the construction surface of the area to be cleared and transported; and the hoisting drag hook is arranged on the supporting plate and used for carrying out pulling transportation and hoisting on the area to be cleared and transported so as to achieve hoisting and cleaning of the area to be cleared and transported. According to the utility model, the concrete supporting structure is cut and separated by the block cutting mechanism to form the supporting area and the area to be cleared and transported, and holes can be effectively led when reinforced concrete structures such as cast-in-place piles, namely meat piles and the like are encountered in the construction process; fixed installation is achieved through the supporting plate, the area to be cleared and transported can be pulled, transported and hoisted through the hoisting drag hook so that hoisting and cleaning of the area to be cleared and transported can be achieved, and reinforced concrete blocks in a hole can be transported out as a whole; meanwhile, construction is convenient, and cost and time are saved.
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Description

Technical Field

[0001] This utility model relates to the field of underground tunneling engineering pipe jacking construction technology, specifically to a convenient pre-hole drilling and cleaning device for pipe jacking engineering. Background Technology

[0002] Currently, drill rods are commonly used for pilot hole preparation in underground pipe jacking projects. However, this method has several problems: 1. Insufficient drilling force makes pilot hole preparation impossible when encountering reinforced concrete support structures such as cast-in-place piles; 2. The pilot hole is relatively small, making it difficult to effectively advance the pipe jacking when encountering reinforced concrete support structures such as cast-in-place piles, or resulting in extremely low construction efficiency; 3. Using blasting machines or other mechanical means to break through reinforced concrete support structures such as cast-in-place piles is time-consuming, costly, and difficult to operate; 4. Post-construction cleanup and transportation are difficult.

[0003] Chinese patent application CN116696359A discloses a tunnel portal breaching equipment and its construction method, including a storage device and a nozzle device. The storage device has a receiving tank containing water bullets, and a first pipe is provided at one end of the receiving tank. The nozzle device has a channel connected to the storage device through the first pipe, and the water bullets are sprayed through the nozzle device to the area to be breached. The channel includes a compression section with a diameter smaller than that of the water bullets, and the water bullets are broken into fragments by the compression section.

[0004] The tunnel portal demolition equipment provided by the above technical solution uses water jet construction equipment to cut grooves in the area to be blasted, separating the grid arch frame from the anchor bolts and other parts of the part to be blasted, effectively solving the impact on the overall structural stability during blasting. However, this tunnel portal demolition equipment requires the portal to be demolished, which is inconvenient for construction. Summary of the Invention

[0005] In view of this, this utility model proposes a convenient pre-drilling and cleaning device for pipe jacking projects, which aims to solve the problems of failure to pre-drill holes, low efficiency or high difficulty in the construction of existing underground pipe jacking projects, which often use drill rods for pre-drilling.

[0006] This utility model proposes a convenient pre-drilling and cleaning device for pipe jacking projects. The device includes: a block cutting mechanism for cutting the concrete support structure into blocks to form a support area and a cleaning area; a support plate, which is set on and connected to the construction surface of the cleaning area; and a hoisting hook, which is set on the support plate for pulling and hoisting the cleaning area to achieve the hoisting and cleaning of the cleaning area.

[0007] Furthermore, in the aforementioned convenient borehole and cleaning device for pipe jacking projects, the support plate is provided with prefabricated installation holes for fixing and installing the support plate.

[0008] Furthermore, in the aforementioned convenient pre-drilling and cleaning device for pipe jacking projects, a connector is provided at the prefabricated installation hole for fixing the support plate to the construction surface of the area to be cleaned.

[0009] Furthermore, in the aforementioned convenient borehole and cleaning device for pipe jacking projects, the connecting component is an expansion bolt.

[0010] Furthermore, in the aforementioned convenient pre-hole drilling and cleaning device for pipe jacking projects, the support plate is detachably mounted on the construction surface of the area to be cleaned.

[0011] Furthermore, in the aforementioned convenient pre-drilling and cleaning device for pipe jacking projects, the segmented cutting mechanism is a water-drilling mechanism, used to drill water-drilling pre-drilling holes in the concrete support structure, so as to segment and cut the concrete support structure into sections.

[0012] Furthermore, in the aforementioned convenient pre-hole drilling and cleaning device for pipe jacking projects, the hoisting hook is a U-shaped hook structure.

[0013] Furthermore, in the aforementioned convenient pre-hole drilling and cleaning device for pipe jacking projects, the hoisting hook and the support plate are fixed together by welding.

[0014] Furthermore, in the aforementioned convenient borehole and cleaning device for pipe jacking projects, the support plate is a steel plate structure.

[0015] Furthermore, in the aforementioned convenient borehole and cleaning device for pipe jacking projects, the support plate is a quadrilateral plate structure.

[0016] This utility model provides a convenient borehole preparation and removal device for pipe jacking projects. It uses a segmented cutting mechanism to cut and separate the concrete support structure into sections, forming a support area and a removal area. It can also effectively guide boreholes when encountering reinforced concrete structures such as cast-in-place piles or grout piles during construction. A support plate enables fixed installation, and a hoisting hook allows for the lifting and removal of the removal area, enabling the removal of the reinforced concrete blocks from the borehole as a whole. Furthermore, it is convenient to construct, cost-effective, and time-saving; on-site operation is also more convenient and efficient, saving both time and costs. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0018] Figure 1 A front view of a convenient pre-hole and cleaning device for pipe curtain engineering provided in an embodiment of this utility model;

[0019] Figure 2 for Figure 1 Sectional view at point AA;

[0020] Figure 3 A top view of the convenient pre-hole and cleaning device for pipe curtain engineering provided in this embodiment of the utility model. Detailed Implementation

[0021] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] See Figures 1 to 3 The figure illustrates a preferred structure of the convenient pre-hole drilling and cleaning device for pipe jacking projects provided by an embodiment of the present invention. As shown, the device includes: a segmented cutting mechanism (not shown), a support plate 1, and a lifting hook 2; wherein,

[0023] The segmented cutting mechanism is used to cut and partition the concrete support structure 4 into sections, forming a support area 41 and a clearance area 42. Specifically, the concrete support structure 4 is a reinforced concrete support structure such as cast-in-place piles. The locations of the pilot holes (pipeline holes 5) can be pre-determined on the reinforced concrete support structure based on the pipe jacking project, and the hole locations are marked. The segmented cutting mechanism then cuts and partitions the concrete support structure 4 into sections based on the stress calculations for hoisting, thus forming the support area 41 and the clearance area 42. In this embodiment, the segmented cutting mechanism can be a water-drilling pilot hole mechanism, used to drill the water-drill pilot holes on the concrete support structure 4. Specifically, it drills water-drill pilot holes in the concrete support structure 4 according to the marked pilot hole locations 5, thereby dividing the concrete support structure 4 in the pipe jacking pilot hole area into sections. The water drill pilot holes are arranged circumferentially, so that the concrete support structure 4 between the water drill pilot holes is the area to be cleared 42, and the outside is the support area 41.

[0024] Support plate 1 is installed and connected to the construction surface of the area to be cleaned 42 (e.g., Figure 3The support plate 1 is located on the top wall shown in the diagram. Specifically, the support plate 1 can be a steel plate structure and can be a quadrilateral structure, especially a rectangular steel plate structure. The support plate 1 is detachably installed on the construction surface of the area to be cleaned 42. In this embodiment, the support plate 1 can be provided with prefabricated mounting holes for fixing the support plate 1, that is, to realize the connection and fixation between the support plate 1 and the construction surface of the area to be cleaned 42, so as to lift the area to be cleaned 42. Preferably, a connector 3 is provided at the prefabricated mounting hole for fixing the support plate 1 on the construction surface of the area to be cleaned 42. The connector 3 can be an expansion bolt, which can realize the connection and fixation between the support plate 1 and the area to be cleaned 42. Of course, the connector 3 can also be other components to realize the connection and fixation between the support plate 1 and the area to be cleaned 42.

[0025] A lifting hook 2 is installed on the support plate 1 for lifting and hoisting the area 42 to be cleaned, thereby enabling the cleaning of the area 42. Specifically, the lifting hook 2 can be welded and fixedly installed on the support plate 1. The lifting hook 2 can be used to lift and move the area 42 to be cleaned, especially by hooking a crane onto the lifting hook 2 for cleaning, for example, by pulling it laterally to the outside of the supported area 41 for cleaning. The lifting hook has a U-shaped hook structure and serves as a lifting lug for lifting.

[0026] The construction operation sequence of the convenient pre-hole drilling and cleaning device for the pipe jacking project is as follows: (1) First, determine the location of the pre-hole to be drilled on the concrete support structure 4 according to the pipe jacking project and mark the layout. Then, according to the stress calculation results such as hoisting, use the water drill pre-drilling mechanism to drill holes and cut the concrete support structure 4 of the pipe jacking pre-hole area into sections; (2) Weld the support plate 1 and the hoisting hook 2 together and reserve holes in advance according to the position of the connector 3; (3) Fix the support plate 1 to the cleaning area 42 of the concrete support structure 4 that has been cut and partitioned and needs to be hoisted according to the positioning position of the connector 3, and drive the connector 3 into the reserved hole of the support plate 1; (4) Finally, hook the crane with the hoisting hook 2 for hoisting and cleaning.

[0027] In summary, the convenient borehole preparation and removal device for pipe jacking engineering provided in this embodiment uses a segmented cutting mechanism to cut and separate the concrete support structure into a support area and a removal area. It can also effectively prepare boreholes when encountering reinforced concrete structures such as cast-in-place piles or grout piles during construction. The device is fixedly installed using a support plate, and the removal area can be pulled and hoisted using a lifting hook to achieve the removal and cleaning of the removal area, allowing the reinforced concrete blocks inside the borehole to be transported out as a whole. Furthermore, it is convenient to construct, cost-effective, and time-saving; on-site operation is more convenient and efficient, saving both time and costs.

[0028] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A convenient borehole preparation and cleaning device for pipe jacking projects, characterized in that, include: The block cutting mechanism is used to cut and partition the concrete support structure into blocks, forming a support area and a cleaning area. A support plate is provided and connected to the construction surface of the area to be cleared. A lifting hook, installed on the support plate, is used for lifting and hoisting the area to be cleaned, so as to achieve the lifting and cleaning of the area to be cleaned.

2. The convenient pre-hole drilling and cleaning device for pipe jacking projects according to claim 1, characterized in that, The support plate is provided with pre-drilled mounting holes for fixing and installing the support plate.

3. The convenient pre-hole drilling and cleaning device for pipe jacking projects according to claim 2, characterized in that, The prefabricated installation hole is equipped with a connector for fixing the support plate to the construction surface of the area to be cleared.

4. The convenient pre-hole drilling and cleaning device for pipe jacking projects according to claim 3, characterized in that, The connecting component is an expansion bolt.

5. The convenient pre-hole drilling and cleaning device for pipe jacking projects according to any one of claims 1 to 4, characterized in that, The support plate is detachably mounted on the construction surface of the area to be cleared.

6. The convenient pre-hole drilling and cleaning device for pipe jacking projects according to any one of claims 1 to 4, characterized in that, The segmentation and cutting mechanism is a water-drilling guide mechanism, used to drill water-drilling guide holes in the concrete support structure in order to segment and cut the concrete support structure into sections.

7. The convenient pre-hole drilling and cleaning device for pipe jacking projects according to any one of claims 1 to 4, characterized in that, The lifting hook is a U-shaped hook structure.

8. The convenient pre-hole drilling and cleaning device for pipe jacking projects according to any one of claims 1 to 4, characterized in that, The lifting hook is fixed to the support plate by welding.

9. The convenient pre-hole drilling and cleaning device for pipe jacking projects according to any one of claims 1 to 4, characterized in that, The support plate is a steel plate structure.

10. The convenient pre-hole drilling and cleaning device for pipe jacking projects according to any one of claims 1 to 4, characterized in that, The support plate is a quadrilateral plate structure.

Citation Information

Patent Citations

  • Tunnel portal breaking construction equipment and construction method thereof

    CN116696359A