Auxiliary dragging reinforcement cage

Abstract

The utility model discloses an auxiliary dragging reinforcement cage, which is matched with a flexible pipeline and a horizontal directional drill for use, and comprises a reinforcement cage main body part and a reinforcement cage head part arranged at the head end of the reinforcement cage main body part, the reinforcement cage main body part is cylindrical, the reinforcement cage head part is conical, and the reinforcement cage main body part and the reinforcement cage head part are integrally formed. An opening allowing the flexible pipeline to be inserted therein is formed in the tail end of the reinforcement cage body part, and a containing space for containing the flexible pipeline is formed in the reinforcement cage body part and the reinforcement cage head part. In the construction process of horizontal directional drilling of the flexible pipeline, friction force and traction force acting on the flexible pipeline are reduced, and the dragging length of the flexible pipeline in one-time construction is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to municipal, water conservancy engineering technical field, specifically relates to a kind of auxiliary dragging reinforcement cage. BACKGROUND

[0002] Horizontal directional drilling construction is a kind of non-excavation construction method. It is the construction technology that pipeline passes through horizontal directional drilling equipment using non-excavation surface layer and can cross river, lake, aboveground and underground building (structure), effectively reduces the influence on surrounding environment and building during construction, and as far as possible reduces the interference on residents' life and traffic caused by construction, with the comprehensive functions of economy, high efficiency and environmental protection. The advantages of this technology are no excavation of ground, no demolition, no damage to ground buildings, no damage to environment, no influence on pipe segment deformation, time saving, high efficiency, safety and low comprehensive cost, and it is widely used in various non-excavation laying municipal and water conservancy engineering project construction. The horizontal directional drilling construction method is a widely used method.

[0003] However, in actual construction process, the current horizontal directional drilling flexible pipe dragging length is about 500m, when encountering larger span water area, aboveground and underground building (structure), work well and receiving well need to be increased, which not only increases construction difficulty, but also increases cost and prolongs construction period.

[0004] The above problems need to be solved urgently. UTILITY MODEL CONTENT

[0005] In order to overcome the problem of insufficient length of dragged flexible pipe in the horizontal directional drilling flexible pipe construction in the prior art, the utility model provides a kind of auxiliary dragging reinforcement cage.

[0006] The technical scheme of the utility model is as follows:

[0007] A kind of auxiliary dragging reinforcement cage, cooperate flexible pipe and horizontal directional drilling are used, including: reinforcement cage main part and the reinforcement cage head portion arranged at the head end of the reinforcement cage main part, the reinforcement cage main part is cylindrical, the reinforcement cage head portion is conical, the tail end of the reinforcement cage main part is provided with the opening for inserting the flexible pipe, and the inside of the reinforcement cage main part and the reinforcement cage head portion forms the accommodation space for accommodating the flexible pipe.

[0008] As a preferred scheme of the utility model, the reinforcement cage main part includes a plurality of annular steels arranged at intervals along the length direction of the reinforcement cage main part and a plurality of first straight steels arranged circumferentially along the outside of the annular steel, and all the annular steels are welded and fixed with each first straight steel.

[0009] As an optimal scheme of the utility model, the steel reinforcement cage head part comprises a plurality of circumferentially arranged second straight steel reinforcements, the number of the second straight steel reinforcements is same as the number of the first straight steel reinforcements, one end of the plurality of second straight steel reinforcements is welded on a point, and the other end of the plurality of second straight steel reinforcements is welded and fixed with a corresponding first straight steel reinforcement respectively.

[0010] As an optimal scheme of the utility model, the annular steel reinforcement is round steel with a diameter of 6mm-12mm, the first straight steel reinforcement is round steel with a diameter of 6mm-12mm, and the second straight steel reinforcement is round steel with a diameter of 8mm-12mm.

[0011] As an optimal scheme of the utility model, the annular steel reinforcement is round steel with a diameter of 6mm-12mm, the first straight steel reinforcement is round steel with a diameter of 6mm-12mm, and the second straight steel reinforcement is round steel with a diameter of 8mm-12mm.

[0012] As an optimal scheme of the utility model, the annular steel reinforcement is round steel with a diameter of 6mm-12mm, the first straight steel reinforcement is round steel with a diameter of 6mm-12mm, and the second straight steel reinforcement is round steel with a diameter of 8mm-12mm.

[0013] As an optimal scheme of the utility model, the steel reinforcement cage main body part is spliced by a plurality of steel reinforcement cages.

[0014] As an optimal scheme of the utility model, the steel reinforcement cage head part is connected with the head end of the flexible pipe through the U-shaped buckle.

[0015] As an optimal scheme of the utility model, the steel reinforcement cage head part is connected with the rotating shaft of the horizontal directional drill through the U-shaped buckle.

[0016] As an optimal scheme of the utility model, the head end of the flexible pipe is closed through a pipe conical head, and the pipe conical head, the steel reinforcement cage head part and the end part of the rotating shaft of the horizontal directional drill are all welded with a perforated steel plate matched with the U-shaped buckle.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The auxiliary steel reinforcement cage provided by the utility model can reduce the friction and traction force acting on the flexible pipe in the process of the horizontal directional drill flexible pipe construction, can increase the flexible pipe pulling length in one construction when the horizontal directional drill is used for construction with a large length, can correspondingly reduce the number of working wells and receiving wells in the construction process, can help to reduce the construction difficulty, ensure the construction period, save the cost, and reduce the damage to the ecological environment. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0020] Figure 1 The structure schematic view of the auxiliary dragging steel reinforcement cage and the flexible pipeline and the rotating shaft of the horizontal directional drilling in an embodiment of the present application;

[0021] Figure 2 The structure schematic view of the auxiliary dragging steel reinforcement cage in an embodiment of the present application;

[0022] Figure 3 The structure schematic view of the flexible pipeline in an embodiment of the present application;

[0023] Figure 4 The structure schematic view of the U-shaped buckle in an embodiment of the present application.

[0024] In the drawings,

[0025] 1, steel reinforcement cage main body part; 11, ring-shaped steel reinforcement; 12, first straight steel reinforcement; 2, steel reinforcement cage head part; 21, second straight steel reinforcement; 3, flexible pipeline; 31, pipeline conical head; 4, rotating shaft; 5, U-shaped buckle. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the following will further describe the present application in combination with the drawings and embodiments. It should be noted that similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, it is declared that the following described embodiments are only used to explain the present application, and do not limit the present application.

[0027] It should be noted that the terms "mounting", "setting", "connecting", "fixing" and the like should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. The indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the product of the application is used, or the orientation or position relationship commonly understood by those skilled in the art, or the orientation or position relationship commonly placed when the product of the application is used, only for the convenience of describing the application and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. The terms "first", "second" are only for the purpose of convenience, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features.

[0028] Please refer to Figures 1 to 3 The auxiliary dragging reinforcement cage provided by the embodiment is applied to horizontal directional drilling flexible pipe construction in cooperation with a flexible pipe 3 and a horizontal directional drilling, and comprises a reinforcement cage main body part 1 and a reinforcement cage head part 2 arranged at the head end of the reinforcement cage main body part 1. The reinforcement cage main body part 1 is in a cylindrical shape, facilitating the flexible pipe 3 to be placed inside the auxiliary dragging reinforcement cage. The reinforcement cage head part 2 is in a conical shape, so as to reduce the resistance generated at the head end of the auxiliary dragging reinforcement cage during dragging. An opening is arranged at the tail end of the reinforcement cage main body part 1 for the flexible pipe 3 to be inserted, and the inside of the reinforcement cage main body part 1 and the reinforcement cage head part 2 forms a containing space for containing the flexible pipe 3. During work, the flexible pipe 3 is placed in the containing space of the auxiliary dragging reinforcement cage, and the reinforcement cage head part 2 is connected with the head end of the flexible pipe 3 and a rotating shaft 4 of the horizontal directional drilling, so that the dragging traction force acts on the head end of the auxiliary dragging reinforcement cage, and the flexible pipe 3 is moved along the specified hole channel by the auxiliary dragging reinforcement cage, while the friction force of the hole channel on the flexible pipe 3 is reduced, the flexible pipe 3 is prevented from being broken, and the length of one-time dragging is increased, so as to reduce the number of work wells and receiving wells.

[0029] The auxiliary dragging reinforcement cage provided by the embodiment is applied to horizontal directional drilling flexible pipe construction in cooperation with a flexible pipe 3 and a horizontal directional drilling, and comprises a reinforcement cage main body part 1 and a reinforcement cage head part 2 arranged at the head end of the reinforcement cage main body part 1. The reinforcement cage main body part 1 is in a cylindrical shape, facilitating the flexible pipe 3 to be placed inside the auxiliary dragging reinforcement cage. The reinforcement cage head part 2 is in a conical shape, so as to reduce the resistance generated at the head end of the auxiliary dragging reinforcement cage during dragging. An opening is arranged at the tail end of the reinforcement cage main body part 1 for the flexible pipe 3 to be inserted, and the inside of the reinforcement cage main body part 1 and the reinforcement cage head part 2 forms a containing space for containing the flexible pipe 3. During work, the flexible pipe 3 is placed in the containing space of the auxiliary dragging reinforcement cage, and the reinforcement cage head part 2 is connected with the head end of the flexible pipe 3 and a rotating shaft 4 of the horizontal directional drilling, so that the dragging traction force acts on the head end of the auxiliary dragging reinforcement cage, and the flexible pipe 3 is moved along the specified hole channel by the auxiliary dragging reinforcement cage, while the friction force of the hole channel on the flexible pipe 3 is reduced, the flexible pipe 3 is prevented from being broken, and the length of one-time dragging is increased, so as to reduce the number of work wells and receiving wells.

[0030] Please refer toFigure 2 In one embodiment, the reinforcing cage body part 1 comprises a plurality of annular reinforcing bars 11 arranged at intervals along the length direction of the reinforcing cage body part 1 and a plurality of first straight reinforcing bars 12 arranged circumferentially outside the annular reinforcing bars 11, and all the annular reinforcing bars 11 are welded and fixed with each first straight reinforcing bar 12. The annular reinforcing bars 11 arranged at intervals along the length direction of the reinforcing cage body part 1 provide longitudinal support for the entire structure, enhancing the overall stability; the first straight reinforcing bars 12 arranged circumferentially outside the annular reinforcing bars 11 provide transverse support, and together with the annular reinforcing bars 11 form a solid grid structure, further enhancing the strength and stability of the auxiliary pulling reinforcing cage. In addition, the grid structure makes the reinforcing cage body part 1 easy to manufacture and assemble, and also facilitates installation and adjustment on the construction site. Since the welding between the annular reinforcing bars 11 and the first straight reinforcing bars 12 is flexible, the number of annular reinforcing bars 11 and first straight reinforcing bars 12 can be increased or decreased as needed to adapt to flexible pipes 3 of different lengths.

[0031] The reinforcing cage head part 2 comprises a plurality of second straight reinforcing bars 21 arranged circumferentially, the number of second straight reinforcing bars 21 is the same as that of first straight reinforcing bars 12, one end of the plurality of second straight reinforcing bars 21 is welded at a point, and the other end of the plurality of second straight reinforcing bars 21 is welded and fixed with a corresponding first straight reinforcing bar 12 respectively. The above-mentioned reinforcing cage head part 2 is designed in a conical shape, which reduces the resistance generated by the auxiliary pulling reinforcing cage head end during pulling, and ensures the firm connection between the reinforcing cage head part 2 and the reinforcing cage body part 1, enhancing the stability of the overall structure.

[0032] In one embodiment, the annular reinforcing bar 11 is a round steel with a diameter of 6-12 mm, and one annular reinforcing bar 11 is arranged at intervals of 200-500 mm. The round steel with a diameter of 6-12 mm as the annular reinforcing bar 11 provides sufficient strength and rigidity to support the entire reinforcing cage body part 1, ensuring the stability of the structure and avoiding excessive material consumption. The interval of 200-500 mm ensures the interaction between the annular reinforcing bars 11, neither increasing the material cost due to excessive density nor reducing the structural strength due to excessive sparseness.

[0033] In one embodiment, the first straight reinforcing bar 12 is a round steel with a diameter of 6-12 mm, and one first straight reinforcing bar 12 is arranged at intervals of 200-500 mm. The round steel with a diameter of 6-12 mm as the first straight reinforcing bar 12, together with the annular reinforcing bar 11, forms a solid grid structure, ensuring the stability of transverse support. The interval of 200-500 mm ensures the interaction between the first straight reinforcing bars 12, as well as the uniformity and integrity of the grid structure.

[0034] In one embodiment, the second straight reinforcing steel bars 21 are round steel bars with diameters of 8-12 mm. The round steel bars with diameters of 8-12 mm as the second straight reinforcing steel bars 21 provide sufficient strength and rigidity to support the whole reinforcing cage head 2, ensuring the stability of the structure and avoiding excessive material consumption.

[0035] In one embodiment, the inner diameter of the ring-shaped reinforcing steel bars 11 is greater than the outer diameter of the flexible pipe 3 by 20-30 mm. This setting ensures that the flexible pipe 3 can be easily inserted into the accommodating space of the auxiliary pulling reinforcing cage, and there is enough space to avoid excessive friction with the auxiliary pulling reinforcing cage during the pulling process, which protects the flexible pipe 3 and improves the smoothness of the pulling process.

[0036] In one embodiment, the reinforcing cage main body 1 is spliced by several reinforcing cages, each of which is 6000-1200 mm long. When lengthening is needed, the first straight reinforcing steel bars 12 have a lap length of not less than 100-150 mm, and the reinforcing cage main body 1 can be lengthened at will according to the length of the flexible pipe 3.

[0037] Please refer to Figure 1 , Figure 4 In one embodiment, the reinforcing cage head 2 is connected to the head end of the flexible pipe 3 through the U-shaped buckle 5. Through the U-shaped buckle 5, the reinforcing cage head 2 and the head end of the flexible pipe 3 are firmly connected. This connection method is not only simple and easy to implement, but also can effectively transmit the force during the pulling process, ensuring that the flexible pipe 3 and the auxiliary pulling reinforcing cage move as a whole.

[0038] Please refer to Figure 1 , Figure 4 In one embodiment, the reinforcing cage head 2 is connected to the rotating shaft 4 of the horizontal directional drill through the U-shaped buckle 5. Through the U-shaped buckle 5, the reinforcing cage head 2 and the rotating shaft 4 of the horizontal directional drill are firmly connected. This connection method is not only simple and easy to implement, but also can effectively transmit the force during the pulling process, thereby guiding the flexible pipe 3 to pull along the predetermined trajectory.

[0039] Please refer to Figure 3 In one embodiment, the head end of the flexible pipe 3 is closed by the pipe tapered head 31, and the pipe tapered head 31, the reinforcing cage head 2, and the end of the rotating shaft 4 of the horizontal directional drill are all welded with a perforated steel plate (not shown in the figure, the same below) matched with the U-shaped buckle 5. The perforated steel plate provides a reliable fixing point for the U-shaped buckle 5. Through the cooperation of the U-shaped buckle 5 and the perforated steel plate, a stable connection structure is formed between the reinforcing cage head 2 and the flexible pipe 3 and the rotating shaft 4 of the horizontal directional drill. This structure can withstand various forces during the pulling process, ensuring the smooth progress of the construction process.

[0040] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

[0041] The utility model patent is exemplarily described above in combination with the drawings, and obviously the implementation of the utility model patent is not limited by the above-mentioned mode. As long as various improvements are made by adopting the method concept and technical scheme of the utility model patent, or the concept and technical scheme of the utility model patent is directly applied to other occasions without improvement, it is within the protection scope of the utility model.

Claims

1. An auxiliary drag box for use with flexible pipe and horizontal directional drilling, characterised in that, The utility model relates to a reinforced cage for flexible pipe, comprising: a reinforced cage body part and a reinforced cage head part arranged at the head end of the reinforced cage body part, the reinforced cage body part is in cylindrical shape, the reinforced cage head part is in conical shape, the tail end of the reinforced cage body part is provided with an opening for inserting the flexible pipe, and the inside of the reinforced cage body part and the reinforced cage head part forms a containing space for containing the flexible pipe.

2. The auxiliary drag box of claim 1, wherein, The reinforced cage body part comprises a plurality of annular steels arranged at intervals along the length direction of the reinforced cage body part and a plurality of first straight steels arranged circumferentially outside the annular steels, all the annular steels are welded and fixed with each first straight steel.

3. The auxiliary drag box of claim 2, wherein, The reinforced cage head part comprises a plurality of second straight steels arranged circumferentially, the number of the second straight steels is the same as that of the first straight steels, one end of the plurality of second straight steels is welded at a point, and the other end of the plurality of second straight steels is welded and fixed with a corresponding first straight steel respectively.

4. The auxiliary drag box of claim 3, wherein, The annular steel is a round steel with a diameter of 6mm-12mm, the first straight steel is a round steel with a diameter of 6mm-12mm, and the second straight steel is a round steel with a diameter of 8mm-12mm.

5. The auxiliary drag box of claim 3, wherein, The annular steel is arranged at intervals of 200mm-500mm, and the first straight steel is arranged at intervals of 200mm-500mm.

6. The auxiliary drag box of claim 4, wherein, The inner diameter of the annular steel is greater than the outer diameter of the flexible pipe by 20mm-30mm.

7. The auxiliary drag box of claim 1, wherein, The reinforced cage body part is spliced by several reinforced cages.

8. The auxiliary drag box of claim 1, wherein, The reinforced cage head part is connected with the head end of the flexible pipe through a U-shaped buckle.

9. An auxiliary drag box as claimed in claim 8, characterised in that, The reinforced cage head part is connected with the rotating shaft of the horizontal directional drill through a U-shaped buckle.

10. An auxiliary drag box as claimed in claim 9, characterised in that, The head end of the flexible pipe is closed through a pipe conical head, and the pipe conical head, the reinforced cage head part and the end part of the rotating shaft of the horizontal directional drill are all welded with a perforated steel plate matched with the U-shaped buckle.

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