Hole guiding device for assisting pile sinking

Abstract

The utility model relates to a hole guiding device for assisting pile sinking, which comprises a pile top used for being matched with a vibratory hammer clamp, a pile body with an H-shaped cross section and a pile foot used for guiding a hole, and the pile top and the pile foot are respectively welded at the upper end and the lower end of the pile body. A material taking groove used for carrying soil in a hole is formed between each of the left side and the right side of the pile body and the pile foot, and the width of the pile foot is gradually reduced from top to bottom. The device has the advantages of being simple in structure and convenient to manufacture; the pile top structure is matched with the vibratory hammer clamp, so that the vibratory hammer clamp can clamp conveniently; the width of the pile foot is gradually reduced from top to bottom, so that the hole guiding device is conveniently inserted into soil; the material taking grooves are formed between the pile feet and the two sides of the pile body, part of soil can be taken out of the hole, the soil extrusion degree of the hole wall is reduced, on one hand, the hole guiding device can be conveniently inserted into the soil, and on the other hand, the prefabricated pile can be conveniently inserted into the hole.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated pile construction, in particular to a hole-guiding device for assisting pile sinking. Background Art

[0002] With the rapid development of my country's economic construction, the demand for construction projects has continued to increase. In construction projects, precast pile sinking is a common construction method.

[0003] When encountering a plastic clay layer or a hard plastic soil layer, the traditional precast pile driving method is difficult to construct due to the hardness and friction of the soil, which can easily cause problems such as the pile body tilting and offset. In order to solve these problems, some technologies have begun to use steel piles to pre-drill holes to assist in pile driving. This method uses a hole-guiding device to perform a hole-guiding operation before the precast pile is driven, thereby reducing the friction and resistance of the soil and improving the efficiency and accuracy of pile driving. However, the existing hole-guiding device has the problems of complex structure and inconvenient operation, which limits its wide application in the construction of precast piles in construction projects. Utility Model Content

[0004] The purpose of the utility model is to overcome the above problems existing in the prior art and to provide a hole guiding device for assisting pile sinking.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A hole-guiding device for assisting pile sinking, the hole-guiding device comprising a pile top for cooperating with a vibrating hammer fixture, a pile body with an H-shaped cross section, and a pile foot for guiding the hole, the pile top and the pile foot being welded to the upper and lower ends of the pile body, respectively, a material taking trough for carrying soil in the hole being arranged between the left and right sides of the pile body and the pile foot, and the width of the pile foot gradually decreases from top to bottom.

[0007] The pile top comprises a quadrangular pyramid-shaped connecting portion and a quadrangular column-shaped clamping portion, the clamping portion is welded to the top end of the connecting portion, and the bottom end of the connecting portion is welded to the top end of the pile body.

[0008] The pile foot comprises a pile foot frame cut from H-shaped steel, two symmetrical rectangular retaining plates, and two symmetrical guide plates. The two retaining plates are respectively welded to the top of the pile foot frame. The outer side of each retaining plate is welded with multiple mutually parallel triangular knives, and the blade of the triangular knife is vertically downward. The two guide plates are respectively welded in the grooves on both sides of the pile foot frame.

[0009] Wherein, the cross section of the triangular knife is an inverted isosceles triangle.

[0010] The outer side edge of the top end of the guide plate is flush with the outer side surface of the retaining plate directly above it.

[0011] Wherein, a right-angled triangle reinforcing rib is arranged at the top of each triangular blade, and the reinforcing rib is welded to the pile body and the retaining plate.

[0012] The end of the triangular blade away from the retaining plate is flush with the side of the pile body, the length of the triangular blade is 1 / 3 to 1 / 2 of the depth of the material trough, and the width of the retaining plate is 1 / 2 to 2 / 3 of the depth of the material trough.

[0013] Wherein, the front side of the pile foot frame is an inverted isosceles triangle.

[0014] The beneficial effects of the utility model are as follows: the structure is simple and easy to manufacture; the pile top structure is compatible with the vibrating hammer clamp, which is convenient for clamping by the vibrating hammer clamp; the width of the pile foot gradually decreases from top to bottom, which is convenient for inserting the hole-guiding device into the soil; a material taking trough is provided between the pile foot and both sides of the pile body, so that part of the soil can be taken out from the hole, reducing the degree of soil squeezing on the hole wall, which is convenient for inserting the hole-guiding device into the soil on the one hand, and convenient for inserting the prefabricated pile into the hole on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the hole-drawing device in the utility model;

[0017] Figure 2 It is a schematic diagram of the planar structure of the hole-drawing device in the utility model when viewed from the front;

[0018] Figure 3 It is a partial structural schematic diagram of the bottom of the hole-drawing device in the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the pile foot in the utility model;

[0020] Figure 5 It is an exploded view of the pile foot in the utility model;

[0021] Explanation of the reference numerals in the figure: pile top 1, connecting part 11, clamping part 12, pile body 2, pile foot 3, pile foot frame 31, earth retaining plate 32, guide plate 33, triangular knife 34, material taking trough 4, reinforcing rib plate 5. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0023] like Figures 1 to 5 As shown, a hole-guiding device for assisting pile sinking comprises a pile top 1 for cooperating with a vibrating hammer fixture, a pile body 2 with an H-shaped cross section, and a pile foot 3 for guiding a hole. The pile top 1 and the pile foot 3 are welded to the upper and lower ends of the pile body 2, respectively.

[0024] The pile top 1 includes a quadrangular pyramid-shaped connecting portion 11 and a quadrangular column-shaped clamping portion 12, the clamping portion 12 is welded to the top of the connecting portion 11, and the bottom of the connecting portion 11 is welded to the top of the pile body 2. The pile top structure is compatible with the vibrating hammer clamp, and is convenient for clamping by the vibrating hammer clamp.

[0025] The width of the pile foot 3 gradually decreases from top to bottom, which is convenient for inserting the hole-guiding device into the soil. The pile foot 3 includes a pile foot frame 31 cut from H-shaped steel, two symmetrical rectangular retaining plates 32, and two symmetrical guide plates 33. The front of the pile foot frame 31 is an inverted isosceles triangle; the two retaining plates 32 are welded to the top of the pile foot frame 31, and a plurality of mutually parallel triangular knives 34 are welded to the outer side of each retaining plate 32. The cross section of the triangular knife 34 is an inverted isosceles triangle, and the blade of the triangular knife 34 is vertically downward, and the end of the triangular knife 34 away from the retaining plate 32 is flush with the side of the pile body 2; the two guide plates 33 are respectively welded in the grooves on both sides of the pile foot frame 31, and the outer side edge of the top of the guide plate 33 is flush with the outer side of the retaining plate 32 directly above it.

[0026] A right-angled triangle reinforcing rib 5 is disposed at the top of each triangular blade 34 , and the reinforcing rib 5 is welded to the pile body 2 and the retaining plate 32 .

[0027] A material taking trough 4 for carrying soil in the hole is respectively arranged between the left and right sides of the pile body 2 and the pile foot 3. Specifically, the material taking trough is located between the left and right sides of the pile body and the retaining plate and the triangular knife.

[0028] The length of the triangular blade 34 is 1 / 3 to 1 / 2 of the depth of the material taking trough, and the width of the retaining plate 32 is 1 / 2 to 2 / 3 of the depth of the material taking trough 4.

[0029] A material extraction trough is arranged between the pile foot and both sides of the pile body, so that part of the soil can be taken out from the hole, reducing the degree of soil compression on the hole wall. On the one hand, it is convenient for the boring device to be inserted into the soil, and on the other hand, it is convenient for the prefabricated pile to be inserted into the hole.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A drilling device for assisting pile sinking, characterized in that: The hole-guiding device includes a pile top for cooperating with a vibrating hammer fixture, a pile body with an H-shaped cross-section, and a pile foot for guiding the hole. The pile top and the pile foot are respectively welded to the upper and lower ends of the pile body. A material taking trough for carrying soil in the hole is respectively arranged between the left and right sides of the pile body and the pile foot. The width of the pile foot gradually decreases from top to bottom.

2. The hole-guiding device according to claim 1, characterized in that: The pile top comprises a quadrangular pyramid-shaped connecting portion and a quadrangular column-shaped clamping portion, the clamping portion is welded to the top end of the connecting portion, and the bottom end of the connecting portion is welded to the top end of the pile body.

3. The hole-guiding device according to claim 1, characterized in that: The pile foot includes a pile foot frame cut from H-shaped steel, two symmetrical rectangular retaining plates, and two symmetrical guide plates. The two retaining plates are respectively welded to the top of the pile foot frame. The outer side of each retaining plate is welded with multiple mutually parallel triangular knives, and the blades of the triangular knives are vertically downward. The two guide plates are respectively welded in the grooves on both sides of the pile foot frame.

4. The hole-guiding device according to claim 3, characterized in that: The cross section of the triangular knife is an inverted isosceles triangle.

5. The hole-guiding device according to claim 3, characterized in that: The outer side edge of the top end of the guide plate is flush with the outer side surface of the earth retaining plate directly above it.

6. The hole-guiding device according to claim 3, characterized in that: A right-angled triangle reinforcing rib is arranged on the top of each triangular blade, and the reinforcing rib is welded to the pile body and the retaining plate.

7. The hole-guiding device according to claim 3, characterized in that: The end of the triangular blade away from the retaining plate is flush with the side of the pile body, the length of the triangular blade is 1 / 3 to 1 / 2 of the depth of the material trough, and the width of the retaining plate is 1 / 2 to 2 / 3 of the depth of the material trough.

8. The hole-guiding device according to claim 3, characterized in that: The front side of the pile foot frame is an inverted isosceles triangle.

Images