Drill rod fixing structure

Abstract

The utility model relates to the field of geotechnical investigation, in particular to a drill rod fixing structure. The drill rod fixing structure comprises a positioning barrel and further comprises a first supporting assembly, the first supporting assembly comprises a fixing ring seat fixed to the outer portion of the positioning barrel, and a plurality of annularly-distributed supporting arms are rotationally connected to the outer portion of the fixing ring seat; the second supporting assembly comprises a mounting cylinder which is rotatably mounted at the other end of the supporting arm, and a supporting rod is mounted in the mounting cylinder in a liftable manner; the foot plate is movably installed at the lower end of the supporting rod, and the lower end of the foot plate is provided with teeth meshed with the earth surface. According to the drill rod fixing structure provided by the utility model, the teeth at the lower end of the foot plate can be stably engaged with the ground so as to ensure the stability of the whole device, and the foot plate can be rotationally adjusted according to the shape of the bottom edge, so that the drill rod fixing structure can better adapt to the ground surface with a gradient and is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of rock and soil exploration, in particular to a drill rod fixing structure. Background Art

[0002] Geotechnical investigation is a very important part of engineering construction. It is mainly used to identify the geological conditions and geotechnical characteristics of the project site and provide a reliable geological basis for engineering design and construction.

[0003] China's authorized patent announcement number: CN 218235055 U records "a drill rod for resource exploration and development with a stable structure", which includes a rectangular plate with a circular hole. The rectangular plate is the basis of the stable structure, that is, the plate body is placed on the ground surface, and then a positioning pin is used to penetrate the circular hole to fix the rectangular plate on the ground surface.

[0004] However, there are still the following defects and shortcomings in the application process:

[0005] When used on a sloped surface, the adaptability of the device itself will be relatively low; and after the survey is completed, it is very troublesome to dismantle the device.

[0006] Therefore, it is necessary to provide a new drill rod fixing structure to solve the above technical problems. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides a drill rod fixing structure.

[0008] The drill rod fixing structure provided by the utility model comprises a positioning tube and also includes:

[0009] A first support assembly, the first support assembly comprising a fixed ring seat fixed to the outside of the positioning cylinder, and a plurality of annularly distributed support arms are rotatably connected to the outside of the fixed ring seat;

[0010] A second support assembly, the second support assembly comprising a mounting cylinder rotatably mounted on the other end of the support arm, and a mounting support rod inside the mounting cylinder that can be raised and lowered;

[0011] The foot plate is movably mounted on the lower end of the support rod, and the lower end of the foot plate has teeth that engage with the ground surface.

[0012] Preferably, a plurality of circles of axially distributed balls are embedded in the circumferential inner wall of the positioning cylinder, and the balls are in rolling contact with the rotating rod.

[0013] Preferably, a plurality of groups of first connecting legs are fixed to the circumferential outer wall of the fixed ring seat, and one end of the support arm is rotatably connected to the first connecting legs via a rotating shaft.

[0014] Preferably, a stopper capable of abutting against the support arm is also fixed on the first connecting leg. In the abutting state, a plurality of the first connecting legs are all in an inclined state, and the inclination angles in the vertical direction are the same.

[0015] Preferably, a second connecting leg is also fixed on the circumferential outer wall of the mounting cylinder. The second connecting leg is fixed to one end of the support arm by a first tightening bolt. A second tightening bolt capable of tightly abutting against the support rod also penetrates through the circumferential outer wall of the mounting cylinder. A connecting end seat is fixed to the lower end of the support rod.

[0016] Preferably, the foot plate is in the shape of a cover body with a concave lower end surface. Teeth are provided at the edge position of the lower end. A spherical connecting end is fixed at the center position of the upper end of the foot plate. The spherical connecting end is embedded inside the connecting end seat.

[0017] Preferably, the foot plate is in the shape of a cover body with a concave lower end surface. Teeth are provided at the edge position of the lower end. A through hole is provided at the center position of the upper end of the foot plate, and a positioning bolt penetrates through the hole. The positioning bolt is threadedly connected to the connecting end seat.

[0018] Preferably, the diameter of the positioning bolt is smaller than the diameter of the hole, and the positioning bolt is in a non-tightening state with respect to the foot plate, so that the foot plate has a certain vertical displacement floating amount and angular floating amount.

[0019] Compared with the related art, the drill pipe fixing structure provided by the present invention has the following beneficial effects:

[0020] In the drill pipe fixing structure provided by the present invention, the teeth at the lower end of the foot plate can stably bite the ground to ensure the stability of the entire device. Moreover, the foot plate can be rotated and adjusted according to the shape of the bottom edge itself, and can better adapt to the sloping ground surface, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a preferred embodiment of the drill pipe fixing structure provided by the present invention;

[0022] Figure 2 is a schematic cross-sectional structural diagram of the positioning cylinder shown in the present invention;

[0023] Figure 3 is a schematic structural diagram of the first support assembly shown in the present invention;

[0024] Figure 4 is a schematic structural diagram of the second support assembly shown in the present invention Figure 1 ;

[0025] Figure 5 is a schematic structural diagram of the second support assembly shown in the present inventionFigure 2 ;

[0026] Figure 6 Structural schematic diagram of the foot plate shown in the present utility model Figure 2 ;

[0027] Figure 7 Structural schematic diagram of the foot plate shown in the present utility model Figure 2 .

[0028] Reference numerals in the figure: 1, positioning cylinder; 2, ball; 3, first support assembly; 31, fixed ring seat; 32, first connecting foot bracket; 33, rotating shaft; 34, support arm; 35, stop block; 4, second support assembly; 41, mounting cylinder; 42, second connecting foot bracket; 43, first tightening bolt; 44, support rod; 45, second tightening bolt; 46, connecting end seat; 5, foot plate; 51, teeth; 52, spherical connecting end; 53, positioning bolt. Specific embodiments

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "sleeved / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] In order to make the purpose, technical solution and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] The following describes in detail the specific implementation of the present utility model in combination with specific embodiments.

[0034] Please refer to Figures 1 to 7 , a drill pipe fixing structure provided by an embodiment of the present utility model. The drill pipe fixing structure includes a positioning cylinder 1, and multiple circles of axially distributed balls 2 are embedded in the circumferential inner wall of the positioning cylinder 1. The balls 2 are in rolling contact with the rotating rod.

[0035] The positioning cylinder 1 is the main structure for limiting the drill pipe. Multiple circles of balls 2 are arranged inside it. The balls 2 are in contact with the drill pipe to realize the limitation of the drill pipe, and can reduce the friction force received by the drill pipe. Therefore, during the drilling process with a drill bit, the hindering effect is smaller, and at the same time, the protection effect on the drill pipe is better, improving the service life of the drill pipe.

[0036] It further includes:

[0037] The first support assembly 3, the first support assembly 3 includes a fixed ring seat 31 fixed to the outside of the positioning cylinder 1. Multiple groups of first connecting brackets 32 are fixed on the circumferential outer wall of the fixed ring seat 31. One end of the support arm 34 is rotatably connected to the first connecting bracket 32 through a rotating shaft 33. A stop block 35 that can abut against the support arm 34 is also fixed on the first connecting bracket 32. In the abutting state, multiple first connecting brackets 32 are all in an inclined state, and the inclination angles in the vertical direction are the same.

[0038] The first support assembly 3 is a support structure connecting the positioning cylinder 1. Its support arm 34 can be rotated and adjusted, and can be better fixed on the ground after being opened; the stop block 35 is provided for the support arm 34 to limit the rotation angle of the support arm 34 and ensure stable support.

[0039] The second support assembly 4, the second support assembly 4 includes an installation cylinder 41. Second connecting brackets 42 are also fixed on the circumferential outer wall of the installation cylinder 41. The second connecting brackets 42 are fixed to one end of the support arm 34 through a first tightening bolt 43. An installation support rod 44 that can be lifted and lowered is arranged inside the installation cylinder 41. A second tightening bolt 45 that can abut against the support rod 44 penetrates through the circumferential outer wall of the installation cylinder 41. A connecting end seat 46 is fixed to the lower end of the support rod 44;

[0040] The second support assembly 4 is a support structure connecting the first support assembly 3 and the foot plate 5. The installation support rod 44 is installed inside the installation cylinder 41. At the same time, the installation cylinder 41 can be rotated and adjusted to make the support rod 44 in a vertical state through the adjustment of the installation cylinder 41; at the same time, the support rod 44 can be adjusted in height. Therefore, when the terrain has a large slope or is uneven, it can be adjusted specifically to ensure that the positioning cylinder 1 is always in a vertical state, so as to better position the drill pipe.

[0041] The foot plate 5 is movably installed at the lower end of the support rod 44, and the lower end of the foot plate 5 has teeth 51 for biting the ground surface;

[0042] The foot plate 5 is in the shape of a cover body with a concave lower end surface. Teeth 51 are provided at the edge position of the lower end. A spherical connection end 52 is fixed at the center position of the upper end of the foot plate 5, and the spherical connection end 52 is embedded inside the connection end seat 46;

[0043] The foot plate 5 is in the shape of a cover body with a concave lower end surface. Teeth 51 are provided at the edge position of the lower end. A through hole is provided at the center position of the upper end of the foot plate 5, and a positioning bolt 53 passes through the hole. The positioning bolt 53 is threadedly connected to the connection end seat 46;

[0044] The diameter of the positioning bolt 53 is smaller than the diameter of the hole, and the positioning bolt 53 is not in a tightened state against the foot plate 5, so that the foot plate 5 has a certain vertical displacement floating amount and angular floating amount.

[0045] Regarding this foot plate 5, it is a cover body structure itself, so its lower end area is relatively small. At the same time, teeth 51 are provided at the lower end. Therefore, when it contacts the ground, the biting will be more stable to ensure the stability of the entire structure;

[0046] There are two ways to install the foot plate 5 and the connection end seat 46:

[0047] Regarding the first type, the spherical connection end 52 is installed on the connection end seat 46. This installation method has a relatively high compactness, the installation of the foot plate 5 is more stable, and at the same time, it ensures that the foot plate 5 can rotate with multiple degrees of freedom to adapt to the ground with slopes or unevenness;

[0048] Regarding the second type, the positioning bolt 53 is installed on the connection end seat 46. In this installation method, it should be noted that the bolt cannot lock the foot plate 5, so that the foot plate 5 can rotate with multiple degrees of freedom. Therefore, it can also adapt to the ground with slopes or unevenness; at the same time, the positioning bolt 53 can be disassembled, which is convenient for replacing the foot plate 5.

[0049] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated here too much.

[0050] The above are only embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A drill pipe fixing structure, comprising a positioning cylinder (1), characterized in that, Further comprising: A first support assembly (3), the first support assembly (3) includes a fixed ring base (31) fixed to the outside of the positioning cylinder (1), and a plurality of annularly distributed support arms (34) are rotatably connected to the outside of the fixed ring base (31); A second support assembly (4), the second support assembly (4) includes a mounting cylinder (41) rotatably mounted at the other end of the support arm (34), and a support rod (44) is mounted in the mounting cylinder (41) in a liftable manner; A foot plate (5), the foot plate (5) is movably mounted at the lower end of the support rod (44), and the lower end of the foot plate (5) has teeth (51) for biting the ground surface.

2. The drill pipe fixing structure according to claim 1, wherein, A plurality of axially distributed balls (2) are embedded in the circumferential inner wall of the positioning cylinder (1), and the balls (2) are in rolling contact with the rotating rod.

3. The drill pipe fixing structure according to claim 1, characterized in that, A plurality of groups of first connecting brackets (32) are fixed to the circumferential outer wall of the fixed ring base (31), and one end of the support arm (34) is rotatably connected to the first connecting bracket (32) through a rotating shaft (33).

4. The drill pipe fixing structure according to claim 3, characterized in that A stop block (35) that can abut against the support arm (34) is also fixed on the first connecting bracket (32). In the abutting state, a plurality of the first connecting brackets (32) are all in an inclined state, and the inclination angles in the vertical direction are the same.

5. The drill pipe fixing structure according to claim 1, characterized in that, A second connecting bracket (42) is also fixed to the circumferential outer wall of the mounting cylinder (41), the second connecting bracket (42) is fixed to one end of the support arm (34) through a first tightening bolt (43), and a second tightening bolt (45) that can abut against the support rod (44) penetrates through the circumferential outer wall of the mounting cylinder (41), and a connecting end seat (46) is fixed to the lower end of the support rod (44).

6. The drill pipe fixing structure according to claim 1, characterized in that The foot plate (5) is in the shape of a cover body with an inwardly concave lower end surface, teeth (51) are provided at the edge position of the lower end, a spherical connecting end (52) is fixed at the center position of the upper end of the foot plate (5), and the spherical connecting end (52) is embedded in the connecting end seat (46).

7. The drill pipe fixing structure according to claim 1, characterized in that, The foot plate (5) is in the shape of a cover body with an inwardly concave lower end surface, teeth (51) are provided at the edge position of the lower end, a through hole is provided at the center position of the upper end of the foot plate (5), and a positioning bolt (53) penetrates through the hole, and the positioning bolt (53) is threadedly connected to the connecting end seat (46).

8. The drill pipe fixing structure according to claim 7, characterized in that, The diameter of the positioning bolt (53) is smaller than the diameter of the hole, and the positioning bolt (53) is in a non-abutting state against the foot plate (5), so that the foot plate (5) has a certain vertical displacement floating amount and angular floating amount.

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