Drilling, digging and sampling integrated drilling tool

Abstract

The utility model relates to a drilling, digging and sampling integrated drilling tool which comprises a drill bit, a sampling pipe and a plurality of drill rods, the drill rods are connected end to end, the sampling pipe is fixedly connected between one drill rod and the drill bit, the upper end of the sampling pipe serves as a flow guide cabin, the lower end of the sampling pipe serves as a screening cabin, and a sampling cabin is further arranged between the flow guide cabin and the screening cabin. Water diversion holes are formed in the surface of the flow guide cabin, material guide holes are formed in the surface of the sampling cabin, and screening holes are formed in the surface of the screening cabin. By adopting the technical scheme provided by the utility model, the drill bit and the drill rod are firstly drilled into a stratum, then water flow is injected into the drill rod, the water flow enters the outer surface of the sampling pipe through the water distribution hole, the water flow scours an underground ore bed, so that minerals flow into the sampling cabin in the sampling pipe, and finally, the minerals are deposited in the screening cabin under the action of the gravity of the minerals. The water flow for washing the minerals flows out to the outer surface of the drill bit through the screening holes; and the water flow softens the stratum soil, so that the further drilling difficulty of the drill bit is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling equipment, and particularly relates to an integrated drilling and sampling drill. Background Art

[0002] Surveying and mapping refers to the measurement and collection of the shape, size, spatial position and attributes of natural geographical elements or surface artificial facilities. In geological exploration work, it is often necessary to collect underground minerals. At this time, it is necessary to first drill a hole to a predetermined depth, and then extend a sampling device to a predetermined depth in the formed hole for sampling. During the sampling process, the upper-layer soil of the formed hole is likely to collapse to its lower layer, resulting in the mixing of the strata from which the sampling materials are sourced.

[0003] In the prior art, a patent document with the publication number of "CN112268742A" discloses a soil drilling and sampling machine for avoiding soil mixing during sampling, including a sampling box and a sampling chamber arranged in the sampling box. The lower wall of the sampling box is provided with an opening, and the upper wall of the sampling box is symmetrically and evenly provided with moving chutes on the left and right. A rack is slidably arranged in the moving chute, a pressing plate is fixedly arranged on the upper end surface of the rack, and reset springs are symmetrically and fixedly arranged on the lower end surface of the pressing plate. Adopting the technical solution of this patent, when performing soil sampling, after drilling the required hole, the drill bit is not taken out directly for soil sampling, ensuring that the upper-layer soil will not fall on the sampling position when it drops, ensuring the accuracy of the source of the sampling materials. At the same time, when it is necessary to sample deeper soil, a fixing plate is installed above the drill bit every time the drill bit drops a certain distance to ensure the stability of the upper-layer soil, so that the upper-layer soil will not collapse and bury the drill bit, improving the work efficiency.

[0004] However, the existing sampling work process generally requires two steps: a drilling process and a sampling process, and two sets of equipment, namely a drilling device and a sampling device, are required for the two processes. That is, first use the drilling device to drill a hole, then take out the drilling device, and then lower the sampling device to a predetermined formation in the formed hole for sampling. Finally, the sampling device is taken out to finally obtain the sampling materials. The process is relatively complex and the labor efficiency is low. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides an integrated drilling and sampling drill.

[0006] The utility model provides an integrated drilling and sampling drill, including a drill bit, a sampling pipe and a plurality of drill rods. The plurality of drill rods are connected end to end, and the sampling pipe is fixedly connected between one of the drill rods and the drill bit. The upper end of the sampling pipe serves as a diversion chamber, the lower end of the sampling pipe serves as a screening chamber, a sampling chamber is also arranged between the diversion chamber and the screening chamber. The surface of the diversion chamber is provided with water diversion holes, the surface of the sampling chamber is provided with material guiding holes, and the surface of the screening chamber is provided with screening holes.

[0007] A water diversion cone is further provided in the diversion cabin, and at least one generatrix of the water diversion cone is flush with the inner wall surface of the water diversion hole.

[0008] The integrated drilling and sampling tool further includes a water supply pump and a water distribution ring. A water distribution groove is provided on the inner wall surface of the water distribution ring. The water distribution groove is communicated with the output end of the water supply pump by a water supply pipe. Water inlet holes are further provided on the surface of the drill pipe, and the drill pipe penetrates through the water distribution ring.

[0009] A number of steel balls are further provided on the inner wall surface of the water distribution ring, and the surface of the steel balls is in mutual fit with the surface of the drill pipe.

[0010] The integrated drilling and sampling tool further includes support legs. One end of each support leg is fixedly connected to the water distribution ring, and the other end of each support leg is supported on the ground.

[0011] The number of the support legs is more than 4, and multiple support legs are uniformly arranged in an array along the circumference of the water distribution ring.

[0012] The water supply pump is a booster pump.

[0013] The water inlet hole is a tapered through hole, and the caliber of the outer end port thereof is larger than that of the inner end port.

[0014] The material guiding hole is an oval through hole.

[0015] The beneficial effects of the present utility model are as follows: By adopting the technical solution provided by the present utility model, when sampling work is carried out, first, the drill bit and the drill pipe are drilled deep into the formation, and the sampling pipe also reaches the predetermined depth of the formation where sampling is required at the same time. Then, water flow is injected into the drill pipe, and the water flow enters the outer surface of the sampling pipe through the water diversion hole. On the one hand, the water flow scours the underground ore layer, so that the ore flows into the sampling cabin in the sampling pipe. Finally, the ore deposits in the screening cabin under the action of its own gravity, and the water flow scouring the ore flows out to the outer surface of the drill bit through the screening holes. On the other hand, the water flow softens the formation soil and reduces the difficulty of further drilling of the drill bit. Description of the Drawings

[0016] Figure 1 is the front view of the present utility model;

[0017] Figure 2 is the present utility model Figure 1 The partial enlarged view at position I in;

[0018] Figure 3 is the present utility model Figure 1 The partial enlarged view at position II in.

[0019] In the figure: 1 - drill bit, 2 - sampling pipe, 3 - drill pipe, 4 - diversion chamber, 5 - screening chamber, 6 - sampling chamber, 7 - water diversion hole, 8 - material guiding hole, 9 - screening hole, 10 - water diversion cone, 11 - water supply pump, 12 - water distribution ring, 13 - water distribution tank, 14 - water supply pipe, 15 - water inlet hole, 16 - steel ball, 17 - support leg. Detailed implementation mode

[0020] The technical solution of the present utility model will be further described below in conjunction with the attached drawings, but the claimed protection scope is not limited thereto;

[0021] The present utility model provides an integrated drilling and sampling drill tool, as Figure 1 、 Figure 2 and Figure 3 shown. The integrated drilling and sampling drill tool includes a drill bit 1, a sampling pipe 2 and multiple drill pipes 3. The multiple drill pipes 3 are connected end to end, and the sampling pipe 2 is fixedly connected between one of the drill pipes 3 and the drill bit 1. The upper end of the sampling pipe 2 serves as a diversion chamber 4, the lower end of the sampling pipe 2 serves as a screening chamber 5, and a sampling chamber 6 is further provided between the diversion chamber 4 and the screening chamber 5. The surface of the diversion chamber 4 is provided with water diversion holes 7, the surface of the sampling chamber 6 is provided with material guiding holes 8, and the surface of the screening chamber 5 is provided with screening holes 9.

[0022] Adopting the technical solution provided by the present utility model, when sampling work is carried out, first make the drill bit and drill pipe drill deep into the formation, and the sampling pipe also reaches the predetermined depth of the formation where sampling is required at the same time. Then inject water flow into the drill pipe, and the water flow enters the outer surface of the sampling pipe through the water diversion holes. On the one hand, the water flow scours the underground ore layer, enabling the ore to flow into the sampling chamber inside the sampling pipe. Finally, the ore deposits in the screening chamber under its own gravity, and the water flow scouring the ore flows out to the outer surface of the drill bit through the screening holes; on the other hand, the water flow softens the formation soil, reducing the difficulty of further drilling by the drill bit.

[0023] Specifically, a water diversion cone 10 is further provided in the diversion chamber 4, and at least one generatrix of the water diversion cone 10 is flush with the inner wall surface of the water diversion hole 7. Adopting the technical solution of the present utility model, by arranging the water diversion cone 10 in the diversion chamber 4, the water flow in the drill pipe 3 can evenly scour the inner wall of the formed hole, thereby collecting the ore in the formation at a predetermined depth.

[0024] In addition, the integrated drilling and sampling drill tool further includes a water supply pump 11 and a water distribution ring 12. The inner wall surface of the water distribution ring 12 is provided with a water distribution tank 13. The water distribution tank 13 is communicated with the output end of the water supply pump 11 by a water supply pipe 14. The surface of the drill pipe 3 is further provided with a water inlet hole 15, and the drill pipe 3 also penetrates through the water distribution ring 12. Adopting the technical solution of the present utility model, when it is necessary to inject water flow into the drill pipe, the water flow flows into the drill pipe through the water supply pump 11, the water supply pipe 14, the water distribution tank 13 and the water inlet hole 15.

[0025] Furthermore, a number of steel balls 16 are provided on the inner wall surface of the water distribution ring 12, and the surfaces of the steel balls 16 are in mutual contact with the surface of the drill pipe 3. The integrated drilling and sampling tool further includes legs 17. One end of each leg 17 is fixedly connected to the water distribution ring 12, and the other end of each leg 17 is supported on the ground. The number of legs 17 is more than 4, and multiple legs 17 are uniformly arranged in an array along the circumference of the water distribution ring 12. Thereby enabling the drill pipe 3 to rotate relative to the water distribution ring 12, avoiding the influence of the sampling device on the drilling work of the drill bit. Additionally, the water supply pump 11 is a booster pump. The water inlet hole 15 is a tapered through hole, and the diameter of its outer end port is larger than that of its inner end port. The material guiding hole 8 is an oval through hole. Thereby helping to increase the water flow pressure and the scouring force of the water flow on the minerals on the inner wall of the formed hole, and collecting minerals that meet the requirements.

Claims

1. An integrated drilling and sampling drill, characterized in that: It includes a drill bit (1), a sampling pipe (2) and multiple drill pipes (3). The multiple drill pipes (3) are connected end to end, and the sampling pipe (2) is fixedly connected between one of the drill pipes (3) and the drill bit (1). The upper end of the sampling pipe (2) serves as a diversion chamber (4), and the lower end of the sampling pipe (2) serves as a screening chamber (5). A sampling chamber (6) is also provided between the diversion chamber (4) and the screening chamber (5). Water diversion holes (7) are provided on the surface of the diversion chamber (4), material guiding holes (8) are provided on the surface of the sampling chamber (6), and screening holes (9) are provided on the surface of the screening chamber (5).

2. The integrated drilling and sampling drill according to claim 1, wherein: A water diversion cone (10) is further provided in the diversion chamber (4), and at least one generatrix of the water diversion cone (10) is flush with the inner wall surface of the water diversion hole (7).

3. The integrated drilling and sampling drill as claimed in claim 1, wherein: The integrated drilling and sampling drill also includes a water supply pump (11) and a water distribution ring (12). A water distribution groove (13) is provided on the inner wall surface of the water distribution ring (12). The water distribution groove (13) is communicated with the output end of the water supply pump (11) by a water supply pipe (14). Water inlet holes (15) are also provided on the surface of the drill pipe (3), and the drill pipe (3) also penetrates through the water distribution ring (12).

4. The integrated drilling and sampling drill as claimed in claim 3, wherein: A number of steel balls (16) are further provided on the inner wall surface of the water distribution ring (12), and the surface of the steel balls (16) is in mutual contact with the surface of the drill pipe (3).

5. The integrated drilling and sampling drill according to claim 3, wherein: The integrated drilling and sampling drill also includes a support leg (17). One end of the support leg (17) is fixedly connected to the water distribution ring (12), and the other end of the support leg (17) is supported on the ground.

6. The integrated drilling and sampling drill as claimed in claim 5, wherein: The number of the support legs (17) is more than 4, and the multiple support legs (17) are uniformly arranged in an array along the perimeter of the water distribution ring (12).

7. The integrated drilling and sampling tool according to claim 3, characterized in that: The water supply pump (11) is a pressurized water pump.

8. The integrated drilling and sampling drill according to claim 3, wherein: The water inlet hole (15) is a tapered through hole, and the outer end port diameter is larger than the inner end port diameter.

9. The integrated drilling and sampling drill according to claim 1, characterized in that: The material guiding hole (8) is an oval through hole.

Images