Rectangular-section slide-resistant pile construction drill bit

Abstract

The utility model relates to a rectangular section slide-resistant pile construction drill bit which comprises a connecting seat, a guide block is connected below the connecting seat, a barrel drill barrel body is connected below the guide block, the guide block and the barrel drill barrel body are respectively in a reuleaux triangle shape, the inside of the barrel drill barrel body is of a hollow structure, a semi-open bottom door is arranged at the bottom of the barrel drill barrel body, and the bottom of the barrel drill barrel body is provided with a hollow bottom door. A cutting pick seat is arranged on the half-opening bottom door, and a plurality of cutting picks are arranged on the bottom wall of the barrel body of the barrel drill and the cutting pick seat. By designing the drill bit in the shape of the Reuleaux triangle and reasonably arranging the cutting teeth at the bottom of the Reuleaux triangle cylindrical drill, the pile hole of the anti-slide pile with the rectangular section is efficiently drilled through the Reuleaux triangle, the hole forming efficiency is improved, the hole forming quality is guaranteed, and compared with traditional manual hole forming, safety and economical efficiency are higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slope engineering anti -slip pile construction device, concretely relates to a rectangular section anti -slip pile construction drill bit. BACKGROUND

[0002] The anti -slip pile is earliest applied to Baocheng railway in China, is used for regulating minority rock bedding landslide, and has been widely applied in traffic, mine, water conservancy and electric power and many industries. The anti -slip pile is a pile column that passes through the sliding surface of landslide and goes into the slide bed, and is effective engineering measure in power transmission (change) side (slip) landslide control engineering. The anti -slip pile transmits landslide thrust to stable stratum by the joint action of pile and rock and soil around the pile, and reaches the effect of balancing landslide thrust by the anchoring effect and passive resistance of stable stratum. The rectangular section anti -slip pile has good stress performance, and the amount of masonry is less than that of circular section when the same bending stiffness (the bending capacity of circular anti -slip pile is obviously about 1 / 3 weaker than that of rectangular anti -slip pile), and the rectangular section anti -slip pile has higher bending performance and obvious anti -slip advantage compared with the circular section anti -slip pile in terms of anti -slip effect.

[0003] At present, the hole forming of anti -slip pile mainly has two modes of artificial hole forming and mechanical hole forming. Artificial hole digging is suitable for good geological conditions such as clay or silty clay or clay containing a small amount of gravel. Mechanical hole forming is suitable for various strata including rock strata. The circular section anti -slip pile adopts the mechanical hole forming mode (using rotary drilling, water mill drilling, etc.) in the present engineering, which has small disturbance, fast hole forming, safety and reliability, while the rectangular section anti -slip pile adopts the artificial hole forming mode in the engineering, which has great safety risk, low efficiency and high cost. With the continuous progress of society, the requirement of safety production in the present engineering industry is higher and higher, and mechanized construction is also developed to different degrees in different engineering construction projects. The use proportion of circular section anti -slip pile also increases with the improvement of mechanical manufacturing level, but in order to achieve the same supporting effect as the rectangular anti -slip pile, the use of mechanical hole forming circular section anti -slip pile will inevitably cause a substantial increase in engineering cost. Therefore, it is necessary to study the mechanical construction technology of rectangular anti -slip pile.

[0004] The present disclosed patent adopts the mode of combining hole digging and hole repairing, first forms a pilot hole, and then repairs the hole, which has lower hole forming efficiency compared with the one-step forming construction mode, and the hole depth is difficult to be effectively controlled by using the mode of hole digging-pilot hole-cleaning-hole-repairing-hole-cleaning. UTILITY MODEL CONTENTS

[0005] The utility model provides a rectangular section anti -slip pile construction drill bit, aims at solving the problems of difficult hole forming, low efficiency and poor quality of rectangular section anti -slip pile.

[0006] The specific technical scheme of the utility model discloses: a rectangular section anti -slip pile construction drill bit, including the connecting seat, the connecting seat below is connected with the guide block, the guide block below is connected with the cylinder drill cylinder body, the guide block and cylinder drill cylinder body are all for the lolo triangle, the inside of cylinder drill cylinder body is the hollow structure, the half open door bottom door is equipped on the bottom of cylinder drill cylinder body, be equipped with the cutting tooth seat on the half open door bottom door, the bottom wall of cylinder drill cylinder body and cutting tooth seat all are provided with a plurality of cutting teeth.

[0007] Further, preferably, the cutting teeth provided on the bottom wall of the cylinder drill cylinder body are arranged at an inclined angle with the bottom wall, and the cutting teeth are directed outward of the cylinder body.

[0008] Further, preferably, the cutting tooth seat comprises a center plate and first and second connecting plates symmetrically arranged on both sides of the center plate.

[0009] Further, preferably, the cutting teeth provided on the cutting tooth seat are arranged at an inclined angle with the cutting tooth seat, and the cutting teeth on the first connecting plate are directed opposite to the cutting teeth on the second connecting plate, and the cutting teeth on the center plate are symmetrically and oppositely arranged about a center line.

[0010] Further, preferably, the half open door bottom plate is further connected with reinforcing strips between the first and second connecting plates.

[0011] Further, preferably, the top of the connecting seat is square in cross section.

[0012] The utility model discloses the beneficial effects are: the utility model discloses a drill bit of lolo triangle shape is designed, and the cutting tooth is reasonably arranged at the bottom of lolo triangle cylinder drill, and the rectangular section anti -slip pile hole is drilled by lolo triangle original high efficiency, not only improves the hole forming efficiency, but also guarantees the hole forming quality, and compared with the traditional manual hole forming, is more safe and economical. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the front view of a rectangular section anti -slip pile construction drill bit of the embodiment;

[0014] Figure 2 It is the plan view of a rectangular section anti -slip pile construction drill bit of the embodiment;

[0015] Figure 3 It is the bottom view of a rectangular section anti -slip pile construction drill bit of the embodiment;

[0016] Figure 4 It is Figure 3 It is the bottom view of a rectangular section anti -slip pile construction drill bit of the embodiment;

[0017] Figure 5 It is the plan view of a rectangular section anti -slip pile construction drill bit of the embodiment;

[0018] In the figure: 1 - telescopic drill rod; 3 - connecting seat; 4 - guide block; 5 - barrel drilling barrel body; 6 - cutting tooth; 7 - cutting tooth seat, 71 - center plate, 72 - first connecting plate, 73 - second connecting plate; 8 - half-open door bottom door; 9 - reinforcing strip. DETAILED DESCRIPTION

[0019] In order to make the technical problems and technical solutions solved by the utility model more clear and understandable, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0020] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0021] In the description of the utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] As Figures 1 to 4 shown, the rectangular section anti-slide pile construction drill bit provided by the embodiment comprises a connecting portion 3, the connecting seat 3 is used for connecting with the telescopic drill rod 1, a guide block 4 is connected below the connecting seat 3, a barrel drilling barrel body 5 is connected below the guide block 4, the guide block 4 and the barrel drilling barrel body 5 are both Luer triangles, the barrel drilling barrel body 5 is a hollow structure, a half-open door bottom door 8 is arranged at the bottom of the barrel drilling barrel body 5, a cutting tooth seat 7 is arranged on the half-open door bottom door 8, and a plurality of cutting teeth 6 are arranged on the bottom wall of the barrel drilling barrel body 5 and the cutting tooth seat 7.

[0023] Among them, the cutting teeth 6 arranged on the bottom wall of the barrel drilling barrel body 5 are arranged at an inclined angle with the bottom wall, and the cutting teeth 6 are directed to the outside of the barrel.

[0024] The cutting tooth 6 arranged on the cutting tooth seat 7 is also arranged at an inclined angle, and the cutting tooth seat 7 comprises a center plate 71 and a first connecting plate 72 and a second connecting plate 73 symmetrically arranged on both sides of the center plate 71, wherein the cutting tooth 6 on the first connecting plate 72 is opposite to the cutting tooth 6 on the second connecting plate 73, and the cutting tooth 6 on the center plate 71 is symmetrically and reversely arranged on the center line.

[0025] In use, the drill bit is connected to the telescopic drill rod 1 of the rotary drilling rig through the connecting part 3, the rotary drilling rig is started, the rotary drilling rig power head is lowered to align the cylinder drill cylinder body 5 with the previously marked rectangular anti-slide pile hole positioning line, the power head is started, the drill bit is rotated and drilled by the telescopic drill rod 1, under the strong torque and rotation speed, the cutting tooth 6 can efficiently crush and excavate the soil layer, since the cylinder drill cylinder body 5 is a Luer triangle, the rectangular pile hole can be drilled based on the Luer triangle principle, and the specific drilling process is as shown in Figure 5 The drilled soil layer enters the cylinder drill cylinder body 5 from the opening of the semi-open door bottom door 8, and the soil layer is also poured out from the opening after the drilling is completed.

[0026] It should be noted that the size of the cylinder drill cylinder body 5 can be determined according to the pile diameter and the pile length in actual use, and the material and the number of the cutting tooth 6 can be selected according to the strength and the nature of the rock layer to be drilled.

[0027] As a preferred embodiment of the present embodiment, the semi-open door bottom plate 8 is further connected with the reinforcing strip 9 between the first connecting plate 72 and the second connecting plate 73, and the other end of the reinforcing strip 9 is connected to the bottom wall of the cylinder drill cylinder body 5 close to the reinforcing strip 9. The reinforcing strip 9 is beneficial to the stability of the cutting tooth seat 7.

[0028] As a preferred embodiment of the present embodiment, the top cross section of the connecting seat 3 is square, and the square structure is connected with the telescopic drill rod 1 to prevent the drill bit from sliding and displacing relative to the drill rod.

[0029] The utility model has been described in detail through specific and preferred embodiments, but those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and any modification, equivalent replacement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A rectangular section anti-slide pile construction drill bit, characterized by: Including connecting seat (3), connecting seat (3) below is connected with guide block (4), guide block (4) below is connected with cylinder drilling cylinder body (5), guide block (4) and cylinder drilling cylinder body (5) are all Leluo triangle, the inside of cylinder drilling cylinder body (5) is hollow structure, the bottom of cylinder drilling cylinder body (5) is equipped with half-open door bottom door (8), half-open door bottom door (8) is equipped with tooth holder (7), the bottom wall of cylinder drilling cylinder body (5) and tooth holder (7) are all provided with a plurality of tooth (6).

2. The construction drill bit for anti-slide piles with rectangular cross-section according to claim 1, characterized in that: The tooth (6) provided on the bottom wall of the cylinder drilling cylinder body (5) is arranged at an inclined angle with the bottom wall thereof, and the tooth (6) faces outward of the cylinder.

3. The rectangular anti-slide pile construction drill bit of claim 1, wherein: The tooth holder (7) includes a center plate (71) and first and second connecting plates (72, 73) symmetrically arranged on both sides of the center plate (71).

4. The construction drill bit for anti-slide piles with rectangular cross-section according to claim 3, characterized in that: The tooth (6) provided on the tooth holder (7) is arranged at an inclined angle with the tooth holder (7), and the tooth (6) on the first connecting plate (72) faces opposite to the tooth (6) on the second connecting plate (73), and the tooth (6) on the center plate (71) is symmetrically and oppositely arranged about a center line.

5. The construction drill bit for anti-slide piles with rectangular cross-section according to claim 3 or 4, characterized in that: The half-open door bottom door (8) is further connected with a reinforcing strip (9) between the first and second connecting plates (72, 73).

6. The rectangular anti-slide pile construction drill bit of claim 1, wherein: The top cross section of the connecting seat (3) is square.

Images