Engineering investigation drilling machine with reaming diameter adjusting structure

Abstract

The utility model discloses an engineering investigation drilling machine with a reaming diameter adjusting structure, which relates to the technical field of engineering investigation and comprises a base, four positioning rods and a top block, the four positioning rods are fixedly connected to two sides of the top of the base, and the top of each positioning rod is fixedly connected with the top block; the engineering investigation drilling machine with the reaming diameter adjusting structure is provided with the reaming structure, when the driving rod slides downwards, the driving rod can drive the adjusting rod to rotate around the top of the adjusting plate at the moment, so that the reaming diameter adjusting structure can adjust the reaming diameter of the drilling machine, and the reaming diameter adjusting structure can adjust the reaming diameter of the drilling machine. Meanwhile, the bottoms of the adjusting plates can rotate around the connecting blocks, so that the upper ends of the inner sides of the four adjusting plates are far away from the drill bit, the diameter of the whole formed by the four adjusting plates is increased, and when the drill rod drives the drill bit and the adjusting plates to rotate to conduct drilling operation on the ground, the diameter of the whole formed by the multiple adjusting plates is adjusted; and the reaming diameter is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering investigation, in particular to an engineering investigation drill provided with a hole expansion diameter adjustment structure. Background Technique

[0002] An engineering investigation drill is a special equipment for geological exploration, mineral exploration and soil investigation. It can drill out formation samples and provide important information on geological structures and soil properties.

[0003] For example, in the technical field of an engineering investigation drill with the publication number of CN220203794U, an engineering investigation drill is disclosed, which includes a telescopic vehicle body and a drill body. Symmetrically fixed on the upper end face of the telescopic vehicle body are vertical plates. Between the vertical plates, a telescopic column is fixedly connected. Between the vertical plates, a threaded rod and a connecting column are rotatably connected. The connecting column is located inside the threaded rod. A moving plate is threadedly connected to the outer surface of the threaded rod. The moving plate is slidably connected to the outer surface of the telescopic column. The drill body is fixedly connected to the moving plate. One end of the threaded rod away from the connecting column penetrates through the vertical plate, and a knob is connected to the end of the threaded rod penetrating through the vertical plate. By rotating the knob to drive the threaded rod to rotate, the moving plate drives the drill body to horizontally move on the outer surfaces of the threaded rod and the telescopic column, so as to adjust the position of the drill body on the telescopic vehicle body, thus facilitating the staff to drill at a specified position according to requirements and avoiding the situation that the drilling position is limited by the vehicle body.

[0004] In the technical field of the engineering investigation drill in the above-mentioned comparative document, generally, its structure is optimized to realize the adjustment of the drilling position. In the actual operation process, when the engineering investigation drill is performing drilling operations, the drilling diameter is usually kept constant. If the drilling diameter needs to be changed, different specifications of drill bits need to be replaced, which brings inconvenience to the adjustment of the drilling diameter. Content of the Utility Model

[0005] The purpose of the utility model is to provide an engineering investigation drill provided with a hole expansion diameter adjustment structure to solve the problem that in the above-mentioned background technique, when the engineering investigation drill is performing drilling operations, the drilling diameter is usually kept constant. If the drilling diameter needs to be changed, different specifications of drill bits need to be replaced, which brings inconvenience to the adjustment of the drilling diameter.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An engineering investigation drill provided with a hole expansion diameter adjustment structure, which includes a base, positioning rods, and a top block. There are four positioning rods, and the four positioning rods are fixedly connected to both sides of the top of the base, and a top block is fixedly connected to the top of the positioning rods;

[0007] A driving structure is slidably connected to the inner side of the positioning rod, and a hole expanding structure is fixedly connected to the bottom of the driving structure. The hole expanding structure includes a drill rod, and positioning grooves are symmetrically arranged on both sides of the drill rod. Four sliding grooves are symmetrically distributed around the outer side of the drill rod. A fixing ring is slidably connected to the outer side of the drill rod. Two symmetrically distributed positioning screws are threadedly connected inside the fixing ring, and the inner ends of the positioning screws are snap-fitted inside the positioning grooves.

[0008] Four driving rods symmetrically distributed around the center are fixedly connected to the bottom of the fixing ring, and the driving rods are slidably connected inside the sliding grooves. A drill bit is fixedly connected to the lower end of the drill rod, and connecting blocks symmetrically distributed around the center are fixedly connected to the outer side of the lower end of the drill bit. An adjusting plate is rotatably connected to the outer side of the connecting block, and an adjusting rod is rotatably connected to the top of the adjusting plate.

[0009] Preferably, the adjusting rod is located inside the sliding groove, and the adjusting rod is rotatably connected to the lower end of the driving rod. The drill bit has a conical structure.

[0010] Preferably, there are four adjusting plates, and the four adjusting plates are symmetrically distributed around the center outside the drill bit. The four adjusting plates form a conical structure. At the same time, threaded grooves are arranged on the outer side of the adjusting plates.

[0011] Preferably, a fixing hole is arranged in the middle of the top block, and a hydraulic rod is fixedly connected inside the fixing hole. An opening is arranged inside the base.

[0012] Preferably, the driving structure is provided with a counterweight block. Two symmetrically distributed sliding holes are arranged on both sides of the counterweight block, and the counterweight block is slidably connected to the inner sides of the four positioning rods through the sliding holes.

[0013] Preferably, a motor is fixedly connected to the top of one side of the counterweight block. The output end of the motor penetrates inside the counterweight block, and a driving shaft is fixedly connected to the output end of the motor.

[0014] Preferably, the lower end of the driving shaft is fixedly connected to the drill rod, and the drill rod is arranged inside the opening.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The engineering exploration drill provided with a hole expanding diameter adjusting structure is provided with a hole expanding structure. When the driving rod slides downward, the driving rod will drive the adjusting rod to rotate around the top of the adjusting plate. At the same time, the bottom of the adjusting plate will rotate around the connecting block, so that the upper ends of the inner sides of the four adjusting plates are far away from the drill bit. At this time, the overall diameter formed by the four adjusting plates will increase. When the drill rod drives the drill bit and the adjusting plates to rotate to perform drilling operations on the ground, the overall diameter formed by the multiple adjusting plates is adjusted to realize the adjustment of the hole expanding diameter.

[0017] Further, after the fixing ring is adjusted, the positioning screw is installed inside the fixing ring at this time, so that the positioning screw contacts the inside of the sliding groove. By fixing the end of the positioning screw to the sliding groove, the position of the fixing ring outside the drill pipe is fixed, thereby fixing the position of the driving rod inside the sliding groove, and realizing the fixing of the rotation angle of the adjusting plate at the upper end of the connecting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a structural schematic diagram of the counterweight block of the present utility model;

[0020] Figure 3 is a structural schematic diagram of the positioning rod of the present utility model;

[0021] Figure 4 is a structural schematic diagram of the drill pipe of the present utility model;

[0022] Figure 5 is an exploded structural schematic diagram of the adjusting plate of the present utility model;

[0023] Figure 6 is a structural schematic diagram of the driving rod of the present utility model.

[0024] In the figure: 1, base; 2, positioning rod; 3, top block; 4, opening; 5, fixing hole; 6, counterweight block; 7, motor; 8, hydraulic rod; 9, drive shaft; 10, drill pipe; 11, positioning groove; 12, sliding groove; 13, fixing ring; 14, positioning screw; 15, driving rod; 16, drill bit; 17, connecting block; 18, adjusting plate; 19, adjusting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] In a further preferred embodiment of the present utility model, as Figure 1 - Figure 6 shown, there are four positioning rods 2, and the four positioning rods 2 are fixedly connected to both sides of the top of the base 1, and the top of the positioning rod 2 is fixedly connected with a top block 3;

[0027] A driving structure is slidably connected to the inner side of the positioning rod 2, and a hole enlarging structure is fixedly connected to the bottom of the driving structure. The hole enlarging structure includes a drill rod 10, and positioning grooves 11 are symmetrically arranged on both sides of the drill rod 10. Four sliding grooves 12 are symmetrically distributed on the outer side of the drill rod 10 in a central symmetry manner. A fixing ring 13 is slidably connected to the outer side of the drill rod 10, and two symmetrically distributed positioning screws 14 are threadedly connected inside the fixing ring 13. The inner ends of the positioning screws 14 are snap-fitted inside the positioning grooves 11. Four driving rods 15 are fixedly connected to the bottom of the fixing ring 13 in a central symmetry manner, and the driving rods 15 are slidably connected inside the sliding grooves 12. A drill bit 16 is fixedly connected to the lower end of the drill rod 10, and connecting blocks 17 are fixedly connected to the outer side of the lower end of the drill bit 16 in a central symmetry manner. An adjusting plate 18 is rotatably connected to the outer side of the connecting block 17, and an adjusting rod 19 is rotatably connected to the top of the adjusting plate 18. The adjusting rod 19 is located inside the sliding groove 12 and is rotatably connected to the lower end of the driving rod 15. The drill bit 16 has a conical structure. Four adjusting plates 18 are provided, and the four adjusting plates 18 are symmetrically distributed around the outer side of the drill bit 16 in a central symmetry manner, and the four adjusting plates 18 form a conical structure. At the same time, a thread-like distributed slot is provided on the outer side of the adjusting plate 18. A fixing hole 5 is provided in the middle of the top block 3, and a hydraulic rod 8 is fixedly connected inside the fixing hole 5. An opening 4 is provided inside the base 1. A counterweight 6 is provided in the driving structure, and two symmetrically distributed sliding holes are provided on both sides of the counterweight 6. The counterweight 6 is slidably connected to the inner sides of the four positioning rods 2 through the sliding holes. A motor 7 is fixedly connected to the top of one side of the counterweight 6, and the output end of the motor 7 penetrates inside the counterweight 6. The output end of the motor 7 is fixedly connected to a driving shaft 9. The lower end of the driving shaft 9 is fixedly connected to the drill rod 10, and the drill rod 10 is arranged inside the opening 4;

[0028] When the drill rod 10 rotates to drill holes in the ground, the drill bit 16 contacts the ground. At the same time, the drill rod 10 drives the adjusting plate 18 to rotate to perform hole drilling operations on the ground. When it is necessary to adjust the drilling hole diameter, at this time, rotate the positioning screw 14 so that the positioning screw 14 is separated from the inside of the positioning groove 11, and slide the fixing ring 13 on the outer side of the drill rod 10, so that the fixing ring 13 drives the driving rod 15 to slide downward. When the driving rod 15 slides downward, at this time, the driving rod 15 will drive the adjusting rod 19 to rotate around the top of the adjusting plate 18. At the same time, the bottom of the adjusting plate 18 will rotate around the connecting block 17, so that the upper ends of the inner sides of the four adjusting plates 18 are far away from the drill bit 16. At this time, the overall diameter formed by the four adjusting plates 18 will increase. When the drill rod 10 drives the drill bit 16 and the adjusting plate 18 to rotate to perform hole drilling operations on the ground, the overall diameter formed by the multiple adjusting plates 18 is adjusted to realize the adjustment of the hole enlarging diameter;

[0029] After the adjustment of the fixing ring 13 is completed, the positioning screw 14 is installed inside the fixing ring 13 at this time, so that the positioning screw 14 is in contact with the inside of the sliding groove 12. Through the fixation of the end of the positioning screw 14 and the sliding groove 12, the position of the fixing ring 13 outside the drill pipe 10 is fixed, thereby fixing the position of the driving rod 15 inside the sliding groove 12, and realizing the fixation of the rotation angle of the adjusting plate 18 at the upper end of the connecting block 17;

[0030] By starting the hydraulic rod 8 to drive the counterweight 6 to move vertically up and down inside the plurality of positioning rods 2, the counterweight 6 drives the motor 7, the drive shaft 9 and the drill pipe 10 to move vertically up and down. When the counterweight 6 moves upward until the drill pipe 10 is above the opening 4, at this time, the drill pipe 10 does not interfere with the base 1, and the operation of replacing and installing the drill pipe 10 can be carried out. When the counterweight 6 moves downward, at this time, the counterweight 6 will drive the drill pipe 10 to move downward, so that the motor 7 drives the drive shaft 9 to rotate, and the drill pipe 10 is driven to rotate by the rotation of the drive shaft 9 to perform a drilling operation on the ground.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it 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. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An engineering survey drilling rig provided with a hole expansion diameter adjustment structure, comprising a base (1), a positioning rod (2), and a top block (3), wherein four positioning rods (2) are provided, and the four positioning rods (2) are fixedly connected to both sides of the top of the base (1), and the top block (3) is fixedly connected to the top of the positioning rod (2); Features: The inner side of the positioning rod (2) is slidably connected to a driving structure, and the bottom of the driving structure is fixedly connected to a hole expansion structure, the hole expansion structure comprises a drill rod (10), and positioning grooves (11) are symmetrically provided on both sides of the drill rod (10), and four sliding grooves (12) are centrally symmetrically distributed on the outer side of the drill rod (10), and a fixing ring (13) is slidably connected to the outer side of the drill rod (10), and the fixing ring (13) is internally threadedly connected to two symmetrical positioning screws (14), and the inner ends of the positioning screws (14) are snap-fitted and connected to the inside of the positioning grooves (11); The bottom of the fixing ring (13) is fixedly connected to four driving rods (15) which are symmetrically distributed in the center, and the driving rods (15) are slidably connected to the inside of the slide groove (12); the lower end of the drill rod (10) is fixedly connected to a drill bit (16), and the outer side of the lower end of the drill bit (16) is fixedly connected to a connecting block (17) which is symmetrically distributed in the center; the outer side of the connecting block (17) is rotatably connected to an adjusting plate (18), and the top of the adjusting plate (18) is rotatably connected to an adjusting rod (19).

2. The engineering survey drilling rig with a hole expansion diameter adjustment structure according to claim 1, characterized in that: The adjusting rod (19) is located inside the sliding groove (12), and the adjusting rod (19) is rotatably connected to the lower end of the driving rod (15), and the drill bit (16) has a conical structure.

3. The engineering survey drilling rig with a hole expansion diameter adjustment structure according to claim 1, characterized in that: Four adjustment plates (18) are provided, and the four adjustment plates (18) are centrally symmetrically distributed outside the drill bit (16), and the four adjustment plates (18) form a conical structure, and the outside of the adjustment plates (18) is provided with threadedly distributed slots.

4. The engineering survey drilling rig with a hole expansion diameter adjustment structure according to claim 1, characterized in that: A fixing hole (5) is provided in the middle of the top block (3), and a hydraulic rod (8) is fixedly connected to the fixing hole (5), and an opening (4) is provided in the base (1).

5. The engineering survey drilling rig with a hole expansion diameter adjustment structure according to claim 1, characterized in that: The driving structure is provided with a counterweight block (6), and two symmetrically distributed sliding holes are provided on both sides of the counterweight block (6), and the counterweight block (6) is slidably connected to the inner sides of the four positioning rods (2) through the sliding holes.

6. The engineering survey drilling rig with a hole expansion diameter adjustment structure according to claim 5, characterized in that: A motor (7) is fixedly connected to the top of one side of the counterweight block (6), and an output end of the motor (7) passes through the inside of the counterweight block (6), and a drive shaft (9) is fixedly connected to the output end of the motor (7).

7. The engineering survey drilling rig with a hole expansion diameter adjustment structure according to claim 6, characterized in that: The lower end of the driving shaft (9) is fixedly connected to a drill rod (10), and the drill rod (10) is arranged inside the opening (4).

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