Drill bit soil taking device of rotary drilling rig

Abstract

The utility model relates to the technical field of pile foundation construction equipment, and discloses a rotary drilling rig drill bit soil taking device which comprises a soil collecting hopper, a hollow column, a guide rod and a plurality of soil taking rods. The guide rod is fixedly installed at the telescopic end of the telescopic air cylinder and penetrates through the top of the hollow column in a sliding mode, the soil sampling rods are movably hinged to the hollow column at intervals through connecting pieces a, transmission rods are movably hinged to the soil sampling rods through connecting pieces b, and a lifting base is fixedly installed at the upper end of the guide rod. According to the utility model, soil in the drill bit of the rotary drilling rig can be quickly loosened and separated, sticky soil can be conveniently and smoothly thrown out of the drill bit of the rotary drilling rig, and the taking-out speed of the soil is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation construction equipment, and more specifically, to a soil-taking device for a rotary drilling rig drill bit. Background Art

[0002] A pile foundation is a deep foundation consisting of a pile and a pile cap connected to the top of the pile, or a single pile foundation connected by a column and the pile foundation. If the pile body is completely buried in the soil and the bottom of the cap is in contact with the soil, it is called a low cap pile foundation. If the upper part of the pile body is exposed to the ground and the bottom of the cap is above the ground, it is called a high cap pile foundation. Building pile foundations are usually low cap pile foundations.

[0003] At present, during the pile foundation construction process, a hole is drilled in the pile by the cylindrical drill bit of a rotary drilling rig to bring out the soil in the pile. In order to facilitate the next drilling operation, the soil in the drill bit of the rotary drilling rig needs to be taken out. The commonly used method is to instantly switch the forward and reverse rotation of the rotary drilling rig drill bit to throw out the soil inside. However, if this method encounters sticky soil, it is difficult to throw it out smoothly in the drill bit of the rotary drilling rig, and the soil removal speed is relatively slow, which affects the soil removal efficiency of the rotary drilling rig drill bit. Based on this, the utility model designs a rotary drilling rig drill bit soil removal device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a soil-taking device for a rotary drilling rig drill bit to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A rotary drilling rig drill bit soil-taking device comprises a soil-collecting bucket, a hollow column, a guide rod and a plurality of soil-taking rods, wherein the hollow column is fixedly mounted inside the soil-collecting bucket, a telescopic cylinder is fixedly mounted on the bottom end of the soil-collecting bucket, the guide rod is fixedly mounted on the telescopic end of the telescopic cylinder, the guide rod slides through the top of the hollow column, a plurality of soil-taking rods are movably hinged to the hollow column at intervals through a connecting piece a, a transmission rod is movably hinged to the soil-taking rod through a connecting piece b, a lifting seat is fixedly mounted on the upper end of the guide rod, and the lifting seat is movably hinged to one end of the transmission rod through a connecting piece c.

[0007] As a preferred technical solution of the present utility model, the number of the soil-taking rods is four, and the soil-taking rods are arranged in a circular shape with equal intervals.

[0008] As a preferred technical solution of the present invention, a soil discharge port is provided on the side of the soil collecting bucket, a sealing door is rotatably mounted on the soil discharge port, and a locking assembly is provided on the sealing door.

[0009] As a preferred technical solution of the present invention, the locking assembly includes a locking block and a T-shaped stud. The locking block is fixedly installed on one end of the sealing door, and the T-shaped stud is threadedly connected between the soil collecting bucket and the locking block.

[0010] As a preferred technical solution of the present invention, a handle is fixedly installed on the side wall of the sealed door, and the cross-sectional shape of the handle is U-shaped.

[0011] As a preferred technical solution of the present invention, support feet are fixedly connected to each end corner of the bottom of the soil collecting bucket, and positioning holes are provided on the bottom surfaces of the support feet.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model utilizes various soil-taking rods in a stored and closed state to form a tapered whole, which is convenient for inserting the rods into the drill head of the rotary drilling rig, uses a telescopic cylinder to drive the guide rod and the lifting seat to perform an ascending movement, and utilizes a transmission rod to drive the soil-taking rods to flip outwards until the various soil-taking rods are adjusted to an expanded state, so that the various soil-taking rods are dispersedly extended into the soil in the drill head of the rotary drilling rig, and the drill head of the rotary drilling rig is rotated and reciprocated along the soil-taking rods, thereby promoting the rapid loosening and separation of the soil in the drill head of the rotary drilling rig, facilitating the smooth throwing out of the sticky soil in the drill head of the rotary drilling rig, and being conducive to increasing the soil removal speed and improving the soil-taking efficiency of the drill head of the rotary drilling rig. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic cross-sectional view of a soil taking rod in a rotary drilling rig drill bit soil taking device of the present invention when the soil taking rod is in an expanded state;

[0015] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of a soil-taking device of a rotary drilling rig drill bit in the present invention when the soil-taking rod is in a retracted and closed state;

[0017] Figure 4 This is a side structural diagram of a rotary drilling rig drill bit soil taking device of the present invention when the soil taking rod is in a retracted and closed state;

[0018] Figure 5 The utility model is a schematic diagram of the three-dimensional structure of a soil taking rod in a drill bit soil taking device of a rotary drilling rig when the soil taking rod is in an expanded state.

[0019] In the figure: 1. Soil collecting bucket; 101. Telescopic cylinder; 102. Soil discharge port; 103. Sealing door; 1031. Handle; 104. Locking assembly; 1041. Locking block; 1042. T-shaped stud; 105. Support foot; 1051. Positioning hole; 2. Hollow column; 201. Connector a; 3. Guide rod; 4. Soil taking rod; 401. Connector b; 5. Lifting seat; 501. Connector c; 6. Transmission rod; 7. Drill bit of rotary drilling rig. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 5 As shown, the utility model provides a rotary drilling rig drill bit soil taking device, including a soil collecting bucket 1, a hollow column 2, a guide rod 3 and a plurality of soil taking rods 4, the hollow column 2 is fixedly installed inside the soil collecting bucket 1, the bottom end of the soil collecting bucket 1 is fixedly installed with a telescopic cylinder 101, the guide rod 3 is fixedly installed on the telescopic end of the telescopic cylinder 101, the guide rod 3 slides through the top of the hollow column 2, the plurality of soil taking rods 4 are movably hinged to the hollow column 2 at intervals through a connecting piece a201, and a transmission rod is movably hinged to the soil taking rod 4 through a connecting piece b401 6. A lifting seat 5 is fixedly installed on the upper end of the guide rod 3. The telescopic cylinder 101 can be used to drive the guide rod 3 and the lifting seat 5 to perform lifting activities. The lifting seat 5 is movably hinged to one end of the transmission rod 6 through the connecting piece c501. The transmission rod 6 is used to make the lifting seat 5 drive the soil-taking rod 4 to flip when performing lifting activities, so that each soil-taking rod 4 can be adjusted to a stored and closed state or an expanded state. The soil-taking rods 4 in the stored and closed state are combined to form a tapered whole, which is convenient for inserting it into the drill bit 7 of the rotary drilling rig.

[0022] Among them, such as Figure 5 As shown, there are four soil-taking rods 4, which are arranged in a circular and equidistant manner. If each soil-taking rod 4 is adjusted to an expanded state, each soil-taking rod 4 can be dispersedly extended into the soil in the drill bit 7 of the rotary drilling rig.

[0023] Among them, such as Figure 3 and Figure 4As shown, a soil discharge port 102 is provided on the side of the soil collecting bucket 1, and a sealing door 103 is rotatably installed on the soil discharge port 102. The sealing door 103 is provided with a locking assembly 104, which includes a locking block 1041 and a T-shaped stud 1042. The locking block 1041 is fixedly installed on one end of the sealing door 103, and the T-shaped stud 1042 is threadedly connected between the soil collecting bucket 1 and the locking block 1041. If it is necessary to discharge the soil collected in the soil collecting bucket 1, twist and loosen the T-shaped stud 1042, open the sealing door 103, and discharge the soil collected in the soil collecting bucket 1 through the soil discharge port 102.

[0024] Among them, such as Figure 3 As shown, a handle 1031 is fixedly mounted on the side wall of the sealing door 103 , and the cross-section of the handle 1031 is U-shaped.

[0025] Among them, such as Figure 5 As shown, support legs 105 are fixedly connected to each end corner of the bottom of the soil collecting bucket 1, and positioning holes 1051 are opened on the bottom surface of the support legs 105, so as to facilitate the soil collecting bucket 1 to be tightly fixed on the ground.

[0026] The working principle of this utility model:

[0027] During use, the soil-taking rods 4 in the stored and closed state are combined to form a conical whole, so that it is easy to insert it into the drill bit 7 of the rotary drilling rig. The telescopic cylinder 101 is used to drive the guide rod 3 and the lifting seat 5 to rise. The transmission rod 6 can drive the soil-taking rod 4 to flip outward until each soil-taking rod 4 is adjusted to the expanded state, so that each soil-taking rod 4 is dispersedly extended into the soil in the drill bit 7 of the rotary drilling rig, and the drill bit 7 of the rotary drilling rig is rotated and reciprocated along each soil-taking rod 4. The lifting and lowering activities can promote the soil in the rotary drilling rig drill bit 7 to loosen and detach quickly, making it convenient to throw out the sticky soil in the rotary drilling rig drill bit 7 smoothly, and the soil is finally collected in the soil collecting bucket 1. After the soil is taken, the rotary drilling rig drill bit 7 is raised until it is separated from each soil taking rod 4, and the telescopic cylinder 101 is used to drive the guide rod 3 and the lifting seat 5 to descend, and the transmission rod 6 can be used to drive the soil taking rod 4 to flip inward until each soil taking rod 4 is adjusted to a storage and close state for next use.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil-taking device for a rotary drilling rig, characterized in that: It comprises a soil collecting bucket (1), a hollow column (2), a guide rod (3) and a plurality of soil collecting rods (4); The hollow column (2) is fixedly mounted inside the soil collecting bucket (1); a telescopic cylinder (101) is fixedly mounted on the bottom end of the soil collecting bucket (1); the guide rod (3) is fixedly mounted on the telescopic end of the telescopic cylinder (101); and the guide rod (3) slides through the top of the hollow column (2); A plurality of soil-taking rods (4) are movably hinged to the hollow column (2) via a connecting piece a (201) at intervals, a transmission rod (6) is movably hinged to the soil-taking rod (4) via a connecting piece b (401), a lifting seat (5) is fixedly mounted on the upper end of the guide rod (3), and the lifting seat (5) is movably hinged to one end of the transmission rod (6) via a connecting piece c (501).

2. The soil-taking device for a rotary drilling rig according to claim 1, characterized in that: The number of the soil-taking rods (4) is four, and the soil-taking rods (4) are arranged in a circular and equidistant manner.

3. The soil-taking device for a rotary drilling rig according to claim 1, characterized in that: A soil discharge port (102) is provided on the side of the soil collecting bucket (1), a sealing door (103) is rotatably mounted on the soil discharge port (102), and a locking assembly (104) is provided on the sealing door (103).

4. The soil-taking device for a rotary drilling rig according to claim 3, characterized in that: The locking assembly (104) comprises a locking block (1041) and a T-shaped stud (1042), wherein the locking block (1041) is fixedly mounted on one end of the sealing door (103), and the T-shaped stud (1042) is threadedly connected between the soil collecting bucket (1) and the locking block (1041).

5. The soil-taking device for a rotary drilling rig according to claim 3, characterized in that: A handle (1031) is fixedly mounted on the side wall of the sealing door (103), and the cross-section of the handle (1031) is U-shaped.

6. The soil-taking device for a rotary drilling rig according to claim 1, characterized in that: Support legs (105) are fixedly connected at each end corner of the bottom of the soil collecting bucket (1), and positioning holes (1051) are provided on the bottom surfaces of the support legs (105).

Images