Grouting pipe for pile grouting

Abstract

The utility model discloses a grouting pipe for pile grouting, and belongs to the field of grouting pipes, and the grouting pipe for pile grouting is characterized by comprising a pipe body and further comprising a feeding assembly arranged on the pipe body; wherein the feeding assembly comprises a shaft rod body and a spiral blade body, the shaft rod body is arranged in the pipe body and is connected with an external driving device through a coupler, the shaft rod body is of a hollow structure, a material hole is formed in the shaft rod body, the spiral blade body is installed on the shaft rod body, and the spiral blade body is arranged on the shaft rod body. The spiral blade bodies can stir slurry in the grouting work, synchronous operation of grouting and stirring is achieved, and the uniformity of slurry permeation is remarkably improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of grouting pipes, in particular to a grouting pipe for pile grouting. BACKGROUND

[0002] In the process of building construction and road maintenance, soft soil, roadbed and the like are often reinforced and treated, and grouting technology, as a relatively mature engineering technology, has been widely applied. The basic principle of grouting is that slurry is pressed into the cracks, pores or cavities of the stratum or structure under pressure to improve the integrity and compactness of the whole. A grouting pipe is generally used in the grouting process.

[0003] The grouting pipe used in the current grouting work has poor uniformity of slurry penetration when outputting slurry. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the application is to provide a grouting pipe for pile grouting, which can stir the slurry with the helical blade body during grouting work, realize synchronous operation of grouting and stirring, and significantly improve the uniformity of slurry penetration.

[0005] The application provides a grouting pipe for pile grouting, which comprises a pipe body and further comprises:

[0006] A feeding assembly is arranged on the pipe body.

[0007] The feeding assembly comprises a shaft body and a helical blade body. The shaft body is arranged in the pipe body and connected to an external driving device through a shaft coupling. The shaft body is a hollow structure, and a material hole is arranged on the shaft body. The helical blade body is mounted on the shaft body.

[0008] The core of the feeding assembly is a hollow shaft body. The shaft body is connected to the feeding assembly, and the feeding assembly is connected to an external driving device through a shaft coupling, such as a motor, to realize power connection. The driving device can drive the shaft body to rotate around the axis. A cavity is arranged in the shaft body for the passage of slurry. A plurality of material holes are arranged on the outer wall of the shaft body for the output of slurry. The helical blade body is fixed to the outer surface of the shaft body by welding. During rotation, the helical blade body cuts the soil to allow the pipe body to pass through. The slurry can be pumped into the shaft body. The hollow shaft body design allows the slurry to be injected into the deep layer area through the material holes on the inner cavity of the shaft body. At the same time, the slurry can also enter the grouting area naturally through the pipe body. At the same time, the helical blade body stirs the slurry during grouting work, realizes synchronous operation of grouting and stirring, and significantly improves the uniformity of slurry penetration.

[0009] Further, the feeding assembly further comprises:

[0010] A displacement plate is arranged radially between the helical blade bodies.

[0011] By additionally arranging the displacement plate extending radially on the spiral blade body, the pulp flow is pushed when the shaft body rotates, so that the pulp flow is faster, and the pulp backflow is avoided through the stepped pushing, which is especially suitable for conveying high-viscosity slurry.

[0012] Further, the feeding assembly further comprises:

[0013] The extended shaft is fixed on the shaft body by bolts, and the extended shaft is a hollow structure.

[0014] The pulp propeller is installed on the extended shaft.

[0015] The extended shaft can be disassembled through the flange and bolts on the upper end of the shaft body, the extended shaft maintains a hollow through structure and is coaxially connected with the cavity of the shaft body, the other end is connected with the external driving device through the coupling, the pulp propeller comprises a base and a paddle array welded to the base, the base is rigidly connected with the extended shaft, the pulp propeller generates axial pumping force when the extended shaft rotates, the number of extended shafts can be adjusted by modular splicing according to the drilling depth, the extended shaft cooperates with the pulp propeller to form a relay type grouting power system, and the grouting problem of deep pile foundation is solved.

[0016] Further, the spiral blade body is provided with two, which are main spiral blade and secondary spiral blade, and the diameter of the secondary spiral blade is greater than that of the main spiral blade.

[0017] By arranging two spiral blade bodies, which are main spiral blade and secondary spiral blade, and the diameter of the secondary spiral blade is greater than that of the main spiral blade, the main spiral blade is used for cutting soil, and the secondary spiral blade is used for expanding the channel.

[0018] Further, the adjusting assembly comprises:

[0019] The float is fixedly installed on the pipe body and is automatically lifted to the outlet as the filling surface rises.

[0020] The float is in a cylindrical structure, during the grouting process, as the slurry liquid level rises, the float is automatically moved along the pipe body in the axial direction under the action of buoyancy, and the entire grouting pipe is lifted synchronously.

[0021] Further, the adjusting assembly further comprises:

[0022] The traction rope is connected with the pipe body and the external winch to assist in lifting the position of the hose.

[0023] The annular lifting lug is arranged on the top of the pipe body, connected to the ground winch through the anti-twist steel wire rope, and when the float reaches the preset height, the winch winds the traction rope to assist lifting the grouting pipe, avoiding the inclination of the pipe body caused by the pure buoyancy.

[0024] Further, the paddle of the slurry propeller is semicircular, arc-shaped or multi-blade structure.

[0025] The paddle of the slurry propeller is preferably semicircular in cross section, and the leading edge is polished in streamline shape to reduce the rotating resistance and enhance the permeability of the slurry to the soil cracks, ensuring stable conveying efficiency.

[0026] The beneficial effects of the present application are:

[0027] 1. The screw blade body stirs the slurry during grouting, realizing synchronous operation of grouting and stirring, and significantly improving the uniformity of slurry permeability;

[0028] 2. The radially extending displacement plate is added to the screw blade body to push the slurry flow when the shaft body rotates, making the slurry flow faster, and avoiding slurry backflow through step-by-step pushing, especially suitable for conveying high-viscosity slurry;

[0029] 3. The number of extended shafts can be adjusted by modular splicing according to the drilling depth, and the extended shafts cooperate with the slurry propeller to form a relay grouting power system, solving the grouting problem of deep pile foundation. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a sectional view of the overall structure of the present application;

[0031] Figure 2 is a structural schematic view of the shaft body of the present application;

[0032] Figure 3 is a structural schematic view of the screw blade body of the present application;

[0033] In the drawings, the reference signs are: 100, pipe body; 200, feeding assembly; 210, shaft body; 220, screw blade body; 221, main screw blade; 222, secondary screw blade; 230, displacement plate; 240, extended shaft; 250, slurry propeller; 300, adjusting assembly; 310, float; 320, traction rope. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0035] The terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the data so distinguished can be interchanged, under appropriate circumstances, such that the embodiments of the present application encompasses any and all combinations of one or more of the recited data. It is also to be understood that the terminology "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0036] The embodiments of the present application will be described in detail below with reference to specific embodiments and application scenarios thereof, in conjunction with the accompanying drawings.

[0037] Embodiment 1:

[0038] As shown in Figure 1 , Figure 2 , Figure 3 The embodiments of the present application provide a grouting pipe for pile grouting, which comprises a pipe body 100 and further comprises:

[0039] A feeding assembly 200 is arranged on the pipe body 100.

[0040] The feeding assembly 200 comprises a shaft body 210 and a spiral blade body 220. The shaft body 210 is arranged in the pipe body 100 and connected to an external driving device through a shaft coupling. The shaft body 210 is a hollow structure, and a material hole is arranged on the shaft body 210. The spiral blade body 220 is mounted on the shaft body 210.

[0041] The core of the feeding assembly 200 is the hollow shaft body 210. The shaft body 210 is connected to the feeding assembly 200, and the feeding assembly 200 is connected to an external driving device through a shaft coupling, such as a motor, to realize power connection. The driving device can drive the shaft body 210 to rotate around the axis. A cavity is arranged in the shaft body 210 for passing grout. A plurality of material holes are arranged on the outer wall of the shaft body 210 for outputting grout. The spiral blade body 220 is fixed to the outer surface of the shaft body 210 by welding. During rotation, the spiral blade body 220 cuts soil to allow the pipe body 100 to pass through. Grout can be pumped into the shaft body 210. The hollow shaft body 210 is designed to allow grout to be injected into the deep layer area through the material holes on the inner cavity of the shaft body 210. At the same time, grout can also naturally enter the grouting area through the pipe body 100. At the same time, the spiral blade body 220 stirs the grout during grouting, realizing synchronous operation of grouting and stirring, and significantly improving the uniformity of grout penetration.

[0042] Embodiment 2:

[0043] As shown in Figure 2 , Figure 3 The embodiment of the present application provides a grouting pipe for pile grouting, in addition to comprising the technical features described above, the feeding assembly 200 further comprises:

[0044] A displacement plate 230 is arranged between the spiral blade bodies 220 in a radial direction.

[0045] By additionally arranging the displacement plate 230 extending in a radial direction on the spiral blade body 220, the grout is pushed to flow when the shaft body 210 rotates, so that the grout flows more quickly, and backflow of the grout is avoided through the stepped pushing, and the grouting pipe is especially suitable for conveying high-viscosity grout.

[0046] Embodiment 3:

[0047] As shown in Figure 1 The embodiment of the present application provides a grouting pipe for pile grouting, in addition to comprising the technical features described above, the feeding assembly 200 further comprises:

[0048] An extended shaft 240 is fixed on the shaft body 210 by bolts, and the extended shaft 240 is a hollow structure.

[0049] A grout propeller 250 is installed on the extended shaft 240.

[0050] The extended shaft 240 can be disassembled and assembled on the upper end of the shaft body 210 through the flange and the bolts, the extended shaft 240 maintains a hollow through structure and is coaxially connected to the cavity of the shaft body 210, the other end is connected to an external driving device through a shaft coupling, the grout propeller 250 comprises a base and a paddle array welded to the base, the base is rigidly connected to the extended shaft 240, the grout propeller 250 generates axial pumping force when the extended shaft 240 rotates, the number of the extended shaft 240 can be adjusted by modular splicing according to the drilling depth, the extended shaft 240 cooperates with the grout propeller 250 to form a relay type grouting power system, and the problem of grouting of a deep pile foundation is solved.

[0051] Embodiment 4:

[0052] As shown in Figure 2 The embodiment of the present application provides a grouting pipe for pile grouting, in addition to comprising the technical features described above, the spiral blade body 220 is provided with two spiral blades, namely a main spiral blade 221 and a secondary spiral blade 222, and the diameter of the secondary spiral blade 222 is greater than that of the main spiral blade 221.

[0053] The spiral blade body 220 is provided with two blades, namely a main spiral blade 221 and a secondary spiral blade 222. The diameter of the secondary spiral blade 222 is larger than that of the main spiral blade 221. The main spiral blade 221 is used to cut the soil, and the secondary spiral blade 222 is used to expand the channel.

[0054] Example 5:

[0055] like Figure 1 As shown, this application embodiment provides a grouting pipe for pile grouting, which, in addition to the above-mentioned technical features, includes an adjusting component 300, which comprises:

[0056] The float 310 is fixedly installed on the tube body 100 and automatically rises to the outlet as the filling surface rises.

[0057] Because the float 310 is a cylindrical structure, during the grouting process, as the grout level rises, the float 310 is automatically moved upward along the axial direction of the pipe body 100 under the action of buoyancy, which drives the entire grouting pipe to rise synchronously.

[0058] Example 6:

[0059] like Figure 1 As shown, this application embodiment provides a grouting pipe for pile grouting. In addition to the above-mentioned technical features, the adjusting component 300 further includes:

[0060] The traction rope 320 connects the pipe body 100 and the external winch to assist in raising the position of the hose.

[0061] The pipe body 100 is equipped with an annular lifting lug at the top and is connected to a ground winch via an anti-twist steel wire rope. When the float 310 reaches the preset height, the winch winds up the traction rope 320 to assist in lifting the grouting pipe, thus avoiding the tilting of the pipe body 100 caused by relying solely on buoyancy.

[0062] Example 7:

[0063] like Figure 1 As shown, this application embodiment provides a grouting pipe for pile grouting. In addition to the above-mentioned technical features, the blades of the grout propeller 250 are semi-circular, arc-shaped, or multi-blade structures.

[0064] The blades of the slurry propeller 250 have a preferred semi-circular cross section, and the leading edge is streamlined and polished to reduce rotational resistance, enhance the slurry's ability to penetrate soil fissures, and ensure stable delivery efficiency.

[0065] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the method and apparatus of the present application can be carried out by someone other than the person named in the independent claims, and that the scope of the independent claims is not limited to the person named in the independent claims. In addition, it should be noted that the scope of the method and apparatus of the present application is not limited to performing the functions in the order discussed or illustrated, but can include performing the functions in a substantially simultaneous manner or in the reverse order, for example, the described method can be performed in an order different from that described, and various steps can be added, omitted, or combined, in addition, features described with reference to certain examples can be combined in other examples.

[0066] The embodiments of the present application described above are merely illustrative, and are not intended to limit the present application, and the specific embodiments described above are merely illustrative, and are not intended to limit the present application, and the person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all forms belong to the protection of the present application.

Claims

1. A grouting tube for pile grouting, comprising a tube body (100), characterized in that , also include: The feeding assembly (200) is arranged on the pipe body (100); The feeding assembly (200) comprises a shaft body (210) and a spiral blade body (220), the shaft body (210) is arranged in the pipe body (100) and connected with the external driving device through a shaft coupling, the shaft body (210) is a hollow structure, the shaft body (210) is provided with a material hole, and the spiral blade body (220) is installed on the shaft body (210).

2. A grout pipe for pile grouting according to claim 1, wherein The feeding assembly (200) further comprises: The displacement plate (230) is arranged between the spiral blade bodies (220) in a radial direction.

3. A grout pipe for pile grouting according to claim 2, wherein The feeding assembly (200) further comprises: The extended shaft (240) is fixed on the shaft body (210) by bolts, and the extended shaft (240) is a hollow structure; The slurry propeller (250) is installed on the extended shaft (240).

4. A grout pipe for pile grouting according to claim 3, wherein The spiral blade body (220) is provided with two spiral blades, namely a main spiral blade (221) and a secondary spiral blade (222), and the diameter of the secondary spiral blade (222) is greater than that of the main spiral blade (221).

5. A grout pipe for pile grouting according to claim 4, wherein Further comprising an adjusting assembly (300), the adjusting assembly (300) comprises: The float (310) is fixedly installed on the pipe body (100) and automatically lifted to the outlet as the filling surface rises.

6. A grout pipe for pile grouting according to claim 5, wherein The adjusting assembly (300) further comprises: The traction rope (320) is connected between the pipe body (100) and the external winch to assist in lifting the position of the hose.

7. A grout pipe for pile grouting according to claim 6, wherein The paddle of the slurry propeller (250) is a semicircular, arc-shaped or multi-blade structure.

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