CN212774151U - Bored concrete pile drilling tool and rig - Google Patents
Bored concrete pile drilling tool and rig Download PDFInfo
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- CN212774151U CN212774151U CN202021356561.2U CN202021356561U CN212774151U CN 212774151 U CN212774151 U CN 212774151U CN 202021356561 U CN202021356561 U CN 202021356561U CN 212774151 U CN212774151 U CN 212774151U
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Abstract
The utility model discloses a bored concrete pile drilling tool and a drilling machine thereof, wherein the bored concrete pile drilling tool comprises a connecting rod, and a connecting structure is arranged on the connecting rod; the drill bit comprises a base and four blades, wherein the base is connected with a connecting rod, the base is a revolving body, the blades are of a right-angled triangle structure, one right-angled edge of each blade is fixed in a groove, the blades are symmetrically arranged relative to the center of the circle of the base, and the other right-angled edges of the blades are attached to each other to form a cross shape; the first cutting edge is arranged at the top of the side wall of the groove; the second cutting edges are respectively arranged on the oblique edges of the four blades; this bored concrete pile drilling tool is through setting up first cutting edge on the lateral wall top at the recess, along with the drill bit down bores and play to cut the effect of stinging in the vertical direction to set up the second cutting edge respectively on the hypotenuse of four blades, drive high-speed rotation through the drill bit, have cutting, impact capacity more to the foundation soil of unknown barrier, accomplish bored concrete pile's drilling construction safely effectively.
Description
Technical Field
The utility model relates to a build pile foundation construction equipment technical field, in particular to bored concrete pile drilling tool and rig.
Background
The basement structure of the cultural relic building is reinforced, and the structural reinforcement is required to be carried out on the basis that the original structural system is not dismantled, but the basement space of the cultural relic building is narrow, and large machinery is difficult to erect; therefore, the construction method of the common cast-in-place pile is carried out, but the construction is continued after the old concrete foundation, the wooden pile and the unknown obstacle need to be removed in the construction process of the cast-in-place pile for drilling the steel pipe, which brings serious inconvenience to the continuous construction, meanwhile, the backfill slag layer is mostly piled up to 5 meters below the ground of the basement, the bricks, stone concrete blocks and the like are mostly arranged, the structure is loose, the gap is large, and the pile hole cannot be formed due to slurry leakage in the process of pile construction and drilling, so that the construction of the cast-in-place pile for drilling the steel pipe.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a bored concrete pile drilling tool and rig, can overcome the difficulty that hinders of ground foreign matter, accomplish drilling safely effectively.
According to a first aspect of the present invention, there is provided a bored concrete pile drilling tool, including a connecting rod, on which a connecting structure is provided; the main drill bit comprises a base and four blades, wherein the bottom of the base is connected with a connecting rod, the base is a turnover body, a groove is formed in the middle of the base, the blades are of a right-angled triangle structure, one right-angled edge of each blade is fixed in the groove, the blades are symmetrically arranged about the center of the circle of the base, and the other right-angled edge of each blade is attached to each other to form a cross shape; the first cutting edge is arranged at the top of the side wall of the groove; and the second cutting edges are respectively arranged on the oblique edges of the four blades.
Has the advantages that: this bored concrete pile drilling tool is through setting up first cutting edge on the lateral wall top at the recess, along with main drill bit down bores and play to cut and sting the effect in the vertical direction, and set up the second cutting edge respectively on the hypotenuse of four blades, drive high-speed rotation through main drill bit, foundation soil to the blind obstacle has more cutting, the impact capacity, in the finite space, under the requirement of not demolising the original structure system, overcome the rig and erect the height, pass through the difficult problem that basement drilling difficulty was bored and the ground foreign matter is eliminated, accomplish the drilling construction of bored concrete pile safely effectively.
According to the utility model discloses the bored concrete pile drilling tool of first aspect embodiment is equipped with first gas port on two piece at least blades, and the air resistance that can effective evacuation produce at rotatory in-process plays the effect of the broken soil body of high-efficient operation with higher speed.
According to the utility model discloses bored concrete pile drilling tool of first aspect embodiment, first gas pocket sets up two, and two first gas pockets set up respectively on being located same sharp two blades, and the effect of exhaust air is better.
According to the utility model discloses the bored concrete pile drilling tool of first aspect embodiment all is equipped with the side drill bit on each blade, and the axis of each side drill bit links into "cross", and the orientation of the side drill bit on the collinear is opposite, can assist the drilling of main drill bit to the unknown barrier soil body to move, and the multi-angle cutting soil body simultaneously.
According to the utility model discloses the bored concrete pile drilling tool of first aspect embodiment is equipped with the second gas pocket on the tool bit of side drill bit, can the air that produces when the evacuation bores the dynamic soil body fast to the reduction is to the resistance of boring the dynamic.
According to the utility model discloses bored concrete pile drilling tool of first aspect embodiment, first cutting edge is tooth shape structure, cuts to sting the effect better.
According to the utility model discloses bored concrete pile drilling tool of first aspect embodiment, the second cutting edge is the ripple structure, more has cutting, impact capacity.
According to the utility model discloses a second aspect embodiment provides a rig, including using if the utility model discloses bored concrete pile drilling tool of first aspect embodiment.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
Fig. 1 is a front view of an embodiment of the present invention;
fig. 2 is a top view of an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 2, a bored concrete pile drilling tool includes a connecting rod 10, and a connecting structure 11 is provided on the connecting rod 10; the main drill bit 20 comprises a base 20 and four blades 30, the bottom of the base 20 is connected with a connecting rod 10, the base 20 is a revolving body, a groove 22 is formed in the middle of the base 20, the blades 30 are of a right-angled triangle structure, one right-angled edge of each blade 30 is fixed in the groove 22, each blade 30 is symmetrically arranged about the center of the circle of the base 20, and the other right-angled edges of the blades 30 are attached to each other to form a cross shape; a first blade 21 disposed at the top of the sidewall of the groove 22; and second blades 31 respectively provided on the hypotenuses of the four blades 30. This bored concrete pile drilling tool is through setting up first cutting edge 21 on the lateral wall top at recess 22, along with main drill bit 20 down bores and play to cut in the vertical direction and sting the effect, and set up second cutting edge 31 on the hypotenuse of four blades 30 respectively, drive high-speed rotation through main drill bit 20, the foundation soil to the blind obstacle has more cutting, the impact capacity, in the confined space, under the requirement of not demolising original structural system, overcome the rig and erect the height, pass through the difficult problem that basement drilling was difficult and the foundation foreign matter is eliminated, the construction of boring of bored concrete pile is accomplished safely effectively.
In the present embodiment, the "cross" formed by the respective blades 30 is an effect in a plan view, that is, refer to fig. 2. In fact, each blade 30 constitutes a structure more similar to the head structure of a phillips screwdriver.
In this embodiment, the first air holes 32 are formed in at least two blades 30, so that air resistance generated in the rotation process can be effectively exhausted, and the effect of accelerating and efficiently operating and breaking soil is achieved. Preferably, two first air holes 32 are provided, and the two first air holes 32 are respectively provided on the two blades 30 located on the same straight line, so that the air discharging effect is better.
In the embodiment, each blade 30 is provided with a side drill 40, the axis of each side drill 40 is parallel to the surface of each blade 30, the cutting edge of each side drill 40 faces outwards, the axes of each side drill 40 are connected into a cross shape, the orientations of the side drills 40 on the same straight line are opposite, the cutting edge of each side drill 40 can assist the main drill 20 in drilling the soil body of an unknown obstacle, and the side walls of the side drills 40 can cut the soil body at multiple angles. The bit of the side bit 40 is provided with a second air hole 41, which can quickly exhaust air generated during drilling soil, thereby reducing the resistance of drilling. The first air hole 32 and the second air hole 41 are both round holes, the first air hole 32 is arranged on the cutter body of the blade 30, the axis of the second air hole 41 is intersected with the axis of the side drill 40, and the second air hole 41 is arranged in the middle of the side drill 40.
In the present embodiment, the first blade 21 has a tooth-shaped structure, so that the biting effect is better. In this embodiment, the main drill bit 20 is a thin-walled structure, the groove 22 is actually an opening of the main drill bit 20, the upper portion of the sidewall of the main drill bit 20 plays a cutting and biting role on the horizontal plane of each node in the vertical direction of the foundation soil, and as the main drill bit 20 drills downward, the cutting and biting edge will crush the soil in the hole downward along the radius of the cylinder.
In the present embodiment, the second blade 31 has a corrugated structure, and has more cutting and impacting capabilities.
A drilling machine comprises a cast-in-place pile drilling tool as in the present embodiment, which is fixed by the drilling machine through a connecting structure 11 of a connecting rod 10.
When the cast-in-place pile drilling tool and the drilling machine thereof are used specifically, due to the limited space, the drill rod of the drilling machine needs to be shortened from the conventional 5 meters to 3 meters so as to carry out construction. Dividing the pile hole from the ground of the basement to the depth of 5 meters below the ground of the basement into two construction sections for hole forming construction. A first construction section: the drilling machine is in place to adjust the verticality, a conventional cylindrical pipe drilling tool is used for drilling to a depth of 2.5 meters, after the common cylindrical pipe drilling tool is replaced by the cast-in-place pile drilling tool, a proper amount of cement and water with proper proportion are used for drilling and stirring again, the water adding amount is proper according to the dry humidity of cement paste which can achieve the effect of adhering hole walls, 2% of water glass is added when necessary, and then the hole is drilled downwards for a depth of 2.5 meters. And a second construction section: after the cement slurry is coagulated and solidified to form the hole, the drilling machine is positioned and adjusted again for about 24 hours, and after the original conventional cylindrical pipe drilling tool is replaced, the hole is drilled to the depth of 5 meters from the basement ground again until the pile hole achieves the effects of plugging and wall protection. After the drilling construction with the depth of about 5 meters is completed, replacing the common cylindrical pipe drilling tool with the cast-in-place pile drilling tool, continuously drilling to the designed depth of the pile, and repeating the construction process for construction. The cast-in-place pile drilling tool is more suitable for drilling foundations with unknown obstacles, and can play a good role in forming holes and protecting walls in loose foundation soil with large gaps.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. A bored concrete pile drill, comprising:
the connecting rod is provided with a connecting structure;
the main drill bit comprises a base and four blades, the bottom of the base is connected with the connecting rod, the base is a revolving body, a groove is formed in the middle of the base, the blades are of a right-angled triangle structure, one right-angled edge of each blade is fixed in the groove, the blades are symmetrically arranged around the center of the circle of the base, and the other right-angled edges of the blades are attached to each other to form a cross shape;
the first cutting edge is arranged at the top of the side wall of the groove;
and the second cutting edges are respectively arranged on the bevel edges of the four blades.
2. The bored pile drilling tool according to claim 1, wherein: at least two of the blades are provided with first air holes.
3. A bored pile drilling tool according to claim 2, wherein: the number of the first air holes is two, and the two first air holes are respectively arranged on the two blades which are positioned on the same straight line.
4. The bored pile drilling tool according to claim 1, wherein: and side drills are arranged on the blades, the axes of the side drills are connected into a cross shape, and the side drills on the same straight line face in opposite directions.
5. The bored pile drill according to claim 4, wherein: and a second air hole is formed in the cutter head of the side drill.
6. The bored pile drilling tool according to claim 1, wherein: the first blade is a tooth-shaped structure.
7. The bored pile drilling tool according to claim 1, wherein: the second blade is of a corrugated structure.
8. A drilling rig, comprising: use of a cast-in-place pile drilling tool according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021356561.2U CN212774151U (en) | 2020-07-10 | 2020-07-10 | Bored concrete pile drilling tool and rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021356561.2U CN212774151U (en) | 2020-07-10 | 2020-07-10 | Bored concrete pile drilling tool and rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774151U true CN212774151U (en) | 2021-03-23 |
Family
ID=75078858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021356561.2U Active CN212774151U (en) | 2020-07-10 | 2020-07-10 | Bored concrete pile drilling tool and rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212774151U (en) |
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2020
- 2020-07-10 CN CN202021356561.2U patent/CN212774151U/en active Active
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