Geological drilling coring device

Abstract

The utility model discloses a geological drilling coring device which comprises a frame body, a placing table is installed on the upper portion of the frame body in a sliding mode, a motor is connected to the upper portion of the placing table through bolts, the motor is connected with a transmission shaft through a belt, a coring barrel is fixedly connected to the bottom of the transmission shaft, and a drill bit is fixedly connected to the bottom of the coring barrel. A cutting-off structure is arranged in the coring barrel and comprises a cavity and a first gear, a sliding block is slidably installed in the cavity, a rack is fixedly installed on the upper portion of the sliding block, a second gear is rotatably installed in the cavity, the second gear is connected with the rack in a meshed mode, and a double-face gear ring is rotatably installed at the upper position in the cavity. The double-face gear ring is connected with the second gear in a meshed mode, the double-face gear ring is connected with the first gear in a meshed mode, and a rotating shaft is fixedly installed at the top of the first gear. According to the geological drilling coring device disclosed by the utility model, a required core sample can be completely stored in the device.

Description

TECHNICAL FIELD

[0001] The utility model relates to geological drilling field, especially relate to a geological drilling coring device. BACKGROUND

[0002] Geological drilling coring is through mechanical drive drill bit rotation, drill hole on the ground, again take out the cylindrical soil sample or rock sample in the hole center part, as core sample is used to analyze, research geological condition and bottom property.

[0003] The existing coring device, in the drilling process, the core sample in the hole needs the operator to clean the hole, then takes out the core sample, increases the labor intensity of the operator, and the core sample is easily damaged in the process, which affects the effect of the core sample. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a geological drilling coring device, which can effectively solve the technical problems in the background art.

[0005] To achieve the above object, the technical scheme adopted by the utility model is:

[0006] A geological drilling coring device, comprising a frame body, the frame body is slidably installed with a placing table at the upper position, a motor is bolted on the upper part of the placing table, a transmission shaft is connected with the motor through a belt, a coring barrel is fixedly connected to the bottom of the transmission shaft, a drill bit is fixedly connected to the bottom of the coring barrel, and a cutting structure is arranged in the coring barrel.

[0007] The cutting structure comprises a cavity and a gear one, four sliding blocks are slidably installed in the cavity, a rack is fixedly installed on the upper part of each sliding block, four gear twos are rotatably installed at the upper position in the cavity, the gear twos are meshed and connected with the racks, a double-sided tooth ring is rotatably installed at the upper position in the cavity, the double-sided tooth ring is meshed and connected with the gear twos, and the double-sided tooth ring is also meshed and connected with the gear one, a rotating shaft is fixedly installed at the top of the gear one, and a connecting head is rotatably installed at the top of the rotating shaft.

[0008] As a further scheme of the utility model, a water pump is fixedly installed at the front position on the upper part of the placing table.

[0009] As a further scheme of the utility model, a rotating disc is rotatably installed at the center position on the upper part of the frame body, and a double-way screw rod is fixedly connected to the bottom of the rotating disc and penetrates through the frame body.

[0010] As a further scheme of the utility model, the double-way screw rod is threadedly connected with the placing table, and the bottom of the double-way screw rod is flush with the bottom of the coring barrel.

[0011] As a further scheme of the present utility model, a spring is fixedly installed at the lower inside of the transmission shaft, and a knock sample block is fixedly connected to the bottom of the spring.

[0012] As a further scheme of the present utility model, a handle is fixedly connected to the upper outside of the knock sample block, and the bottom of the knock sample block is slidingly connected with the top of the core taking cylinder.

[0013] As a further scheme of the present utility model, a sliding groove is formed at the lower outside of the transmission shaft, and the handle is slidingly connected with the transmission shaft through the sliding groove.

[0014] The present utility model has the following beneficial effects:

[0015] The motor drives the transmission shaft to rotate through the belt, the drill drills a hole in the ground, the hole in the center of the core taking cylinder saves the core sample inside, the motor stops rotating, the rotation shaft rotates to drive the gear one to rotate, drives the double-sided tooth ring to rotate, the four gears two connected with the double-sided tooth ring start to rotate at the same time, the rack is driven to move to the inside of the core taking cylinder, at this time, the sliding block also starts to slide inward, and the core sample is clamped off;

[0016] The spring can fix the knock sample block on the upper part of the core taking cylinder, the handle is pulled to compress the spring, and then the handle is released, the spring in the compressed state pops out the core sample in the core taking cylinder, so that the core sample is kept intact without knocking the core taking cylinder to make the core sample vibrate and fall off. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the geological drilling core taking device;

[0018] Figure 2 It is a rear view of the whole structure of the geological drilling core taking device;

[0019] Figure 3 It is a bottom view of the whole structure of the geological drilling core taking device;

[0020] Figure 4 It is a sectional view of the core taking cylinder and the transmission shaft of the geological drilling core taking device;

[0021] Figure 5 It is a core taking cylinder of the geological drilling core taking device; Figure 1 It is an enlarged view of A.

[0022] In the diagram: 1. Frame; 2. Placement platform; 3. Turntable; 4. Water pump; 5. Hose; 6. Double-acting screw; 7. Core tube; 8. Motor; 9. Drill bit; 10. Cutting structure; 11. Drive shaft; 12. Spring; 13. Handle; 14. Impact block; 15. Cavity; 16. Rotating shaft; 17. Gear 1; 18. Double-sided gear ring; 19. Slider; 20. Rack; 21. Gear 2; 22. Connector. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1-5 As shown, a geological drilling core sampling device includes a frame 1, a placement platform 2 slidably installed on the upper part of the frame 1, a motor 8 bolted to the upper part of the placement platform 2, a drive shaft 11 connected to the motor 8 via a belt, a core cylinder 7 fixedly connected to the bottom of the drive shaft 11, a drill bit 9 fixedly connected to the bottom of the core cylinder 7, and a cutting structure 10 provided inside the core cylinder 7.

[0025] The truncated structure 10 includes a cavity 15 and a gear 17. Four sliders 19 are slidably installed inside the cavity 15. A rack 20 is fixedly installed on the upper part of each slider 19. Four gears 21 are rotatably installed in the upper part of the cavity 15. The gears 21 mesh with the racks 20. A double-sided gear ring 18 is rotatably installed in the upper part of the cavity 15. The double-sided gear ring 18 meshes with the gears 21 and also meshes with the gear 17. A rotating shaft 16 is fixedly installed on the top of the gear 17. A connector 22 is rotatably installed on the top of the rotating shaft 16.

[0026] In this embodiment, a water pump 4 is fixedly installed at the front position of the upper part of the placement platform 2, and a hose 5 is fixedly installed at the water inlet of the water pump 4.

[0027] The water pump 4 can flow water into the core barrel 7 through the hose 5, which can reduce the dust generated when the drill bit 9 rotates on the ground, and at the same time cool down the drill bit 9 and the core barrel 7, increasing the service life of the equipment.

[0028] In this embodiment, a turntable 3 is rotatably installed at the center of the upper part of the frame 1, and a bidirectional screw 6 is fixedly connected to the bottom of the turntable 3 through the frame 1.

[0029] Rotating the turntable 3 can drive the bidirectional screw 6 to rotate. The frame 1 restricts the bidirectional screw 6 from moving downwards, and it can only rotate on its own under the force of the upper part of the frame 1. The turntable 3 makes it convenient for operators to operate the device, saving physical strength and reducing labor intensity.

[0030] In the embodiment, the bidirectional screw rod 6 is threadedly connected with the placing table 2, and the bottom of the bidirectional screw rod 6 is flush with the bottom of the coring barrel 7.

[0031] When the bidirectional screw rod 6 is threadedly connected with the placing table 2, the placing table 2 can be moved up and down on the frame 1 by rotating the rotating disc 3, and when the motor 8 works, the rotating disc 3 can adjust the distance between the drill bit 9 and the ground; and the bidirectional screw rod 6 long enough can ensure that the length of the core sample meets the requirements.

[0032] In the embodiment, the spring 12 is fixedly installed at the lower position inside the transmission shaft 11, and the knock sample block 14 is fixedly connected to the bottom of the spring 12.

[0033] The knock sample block 14 can extrude the core sample in the coring barrel 7 from the inside, without knocking the outer wall of the coring barrel 7 to damage the device; and the spring 12 can pull and rebound the knock sample block 14 after being stressed.

[0034] In the embodiment, the handle 13 is fixedly connected to the upper position outside the knock sample block 14, and the bottom of the knock sample block 14 is slidably connected to the top of the coring barrel 7.

[0035] The handle 13 is fixedly connected to the knock sample block 14, and the spring 12 can be compressed by pulling the handle 13 upward, and the pressure of the spring 12 is released by releasing the handle 13, so that the knock sample block 14 is ejected and the core sample in the coring barrel 7 is ejected.

[0036] In the embodiment, the transmission shaft 11 is provided with a sliding groove at the lower position outside, and the handle 13 is slidably connected to the transmission shaft 11 through the sliding groove.

[0037] The handle 13 penetrates the outside of the transmission shaft 11, which is convenient for the operator to pull the handle 13, and the spring 12 can reset the knock sample block 14 when the handle 13 is pulled; and the handle 13 is slidably connected to the transmission shaft 11, which reduces the friction between the handle 13 and the transmission shaft 11.

[0038] It should be noted that the utility model is a geological drilling coring device, which is used as follows: the frame 1 is placed on the ground where the sample is needed, the motor 8 is turned on, the transmission shaft 11, the coring barrel 7 and the drill bit 9 are driven to rotate by the belt, the hose 5 is inserted into the water bucket, the water pump 4 pumps water into the coring barrel 7, the rotating disc 3 is continuously rotated to rotate the bidirectional screw rod 6, the placing table 2 is moved towards the ground under the constraint of the frame 1 until the length of the core sample meets the requirements, the motor 8 and the water pump 4 are turned off, the rotating shaft 16 is rotated to drive the gear one 17 to rotate, the double-sided tooth ring 18 connected with the gear one 17 is forced to rotate, the gear two 21 is driven to rotate, the rack 20 connected with the gear two 21 is driven to move towards the center of the coring barrel 7, the slide block 19 is simultaneously driven to move towards the center of the coring barrel 7, the core sample is cut off, and the integrity of the core sample is ensured.

[0039] The connecting head 22 is rotatably connected to the top of the rotating shaft 16, so that the operator cannot directly rotate the rotating shaft 16 by hand, but can rotate the rotating shaft 16 by a tool, and because the connecting head 22 is rotatably connected to the rotating shaft 16, the angle of the connecting head 22 can be adjusted, which is convenient for operation;

[0040] The drill bit 9 and the core barrel 7 are pulled out of the drilled hole by reversely rotating the rotating disc 3, the rotating shaft 16 is reversely rotated again, the sliding block 19 moves to the inside of the cavity 15, the handle 13 is pulled again, the spring 12 is in a compressed state, the handle 13 is immediately released, the compressed spring 12 is ejected, the impact block 14 fixedly connected to the bottom of the spring 12 is ejected, and the impact block 14 hits the top of the core sample, so that the core sample slides out of the inside of the core barrel 7, and it is not necessary to knock the outside of the core barrel 7 to make the core sample loose, which influences the research result.

[0041] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A geological drilling coring device, characterized by: Including frame body (1), the frame body (1) is slidably installed with the placement table (2) on the upper position, the upper portion bolt connection of the placement table (2) is equipped with motor (8), the motor (8) is connected with transmission shaft (11) through the belt, the bottom fixed connection of transmission shaft (11) is equipped with core barrel (7), the bottom fixed connection of core barrel (7) is equipped with drill bit (9), the inside of core barrel (7) is equipped with cut-off structure (10); The cut-off structure (10) includes a cavity (15) and a gear (17), the cavity (15) is slidably installed with four sliding blocks (19), the sliding blocks (19) are fixedly installed with a rack (20) on the upper portion, the cavity (15) is rotatably installed with four gear (21) on the upper position, the gear (21) is connected with the rack (20), the cavity (15) is rotatably installed with a double-sided tooth ring (18) on the upper position, the double-sided tooth ring (18) is connected with the gear (21), and the double-sided tooth ring (18) is also connected with the gear (17), the top of the gear (17) is fixedly installed with a rotating shaft (16), and the top of the rotating shaft (16) is rotatably installed with a connecting head (22).

2. A geological coring device as claimed in claim 1, wherein: The water pump (4) is fixedly installed on the upper portion of the placement table (2) on the front position.

3. A geological coring device as claimed in claim 1, wherein: The center position of the frame body (1) is rotatably installed with a rotating disc (3), and the bottom of the rotating disc (3) is fixedly connected with a bidirectional screw rod (6) penetrating the frame body (1).

4. A geological coring device as claimed in claim 3, wherein: The bidirectional screw rod (6) is threadedly connected with the placement table (2), and the bottom of the bidirectional screw rod (6) is flush with the bottom of the core barrel (7).

5. A geological coring device as claimed in claim 1, wherein: The inside of the transmission shaft (11) is fixedly installed with a spring (12) on the lower position, and the bottom of the spring (12) is fixedly connected with a sample striking block (14).

6. A geological coring device as claimed in claim 5, wherein: The outside of the sample striking block (14) is fixedly connected with a handle (13) on the upper position, and the bottom of the sample striking block (14) is slidably connected with the core barrel (7) penetrating the top of the core barrel (7).

7. A geological coring device as claimed in claim 6, wherein: The outside of the transmission shaft (11) is provided with a sliding groove on the lower position, and the handle (13) is slidably connected with the transmission shaft (11) penetrating the sliding groove.

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