Rock soil sampling device

Abstract

The utility model discloses a rock soil sampling device, and mainly relates to the field of sampling equipment. Comprising a drilling pipe matched with motor equipment, a flow guide groove is formed in the outer wall of the drilling pipe, and the flow guide groove is of a coherent spiral structure in the drilling pipe; the starting end and the tail end of the flow guide groove are not connected with the drilling end and the rotating end of the drilling pipe. Flow guide holes are formed in the flow guide groove at equal intervals, and the flow guide holes communicate with the inner wall of the drilling pipe. The drilling pipe has the beneficial effects that the drilling pipe can conveniently cut a rock-soil layer, so that a worker can conveniently obtain a rock-soil sample, and the difficulty degree of sampling operation of the rock-soil sample is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sampling device field, specifically a kind of rock-soil sampling device. BACKGROUND

[0002] In geological exploration task, the rock-soil sample in the region is sampled to facilitate researchers to study and analyze the specific information of the geological environment. The common sampling method is mostly collected by drilling, that is, the cutting pipe (i.e. drilling pipe) is drilled into the rock-soil by water drilling equipment, so that the rock-soil sample is drilled into the cutting pipe, thereby realizing the collection of rock-soil sample. Because some rock layers are hard, water drilling cutting equipment is needed for cutting, that is, water flow is introduced to the drilling site during drilling to lubricate and cool the cutting pipe, so that the cutting equipment can act on the rock layer for a long time. However, the cutting pipe will overheat after being used in the rock layer for a long time. At the same time, because the inner and outer walls of the cutting pipe need to frequently contact the rock-soil, it is difficult to drill the rock-soil layer even if water flow is introduced.

[0003] Based on the above problems, a rock-soil sampling device is provided, which can facilitate the cutting operation of the drilling pipe on the rock-soil layer, so that the staff can easily obtain the rock-soil sample, thereby reducing the difficulty of rock-soil sample sampling operation. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a rock-soil sampling device, which can facilitate the cutting operation of the drilling pipe on the rock-soil layer, so that the staff can easily obtain the rock-soil sample, thereby reducing the difficulty of rock-soil sample sampling operation.

[0005] To achieve the above purpose, the following technical solutions are used:

[0006] A rock-soil sampling device includes a drilling pipe matched with a motor device, a flow guide groove is provided on the outer wall of the drilling pipe, and the flow guide groove is arranged in a continuous spiral structure on the drilling pipe. The start and end positions of the flow guide groove are not connected to the drilling end and rotating end of the drilling pipe.

[0007] Flow guide holes are evenly spaced on the flow guide groove, and the flow guide holes are in communication with the inner wall of the drilling pipe.

[0008] The flow guide groove is a smooth curved surface structure, and the flow guide groove is smoothly connected with the outer wall of the drilling pipe.

[0009] The flow guide holes are arranged near the drilling end of the drilling pipe, and the flow guide holes are arranged away from the drilling pipe and close to the motor device.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The device is set, the flow guide groove is arranged on the outer wall of the drilling pipe, and the water flow in the space of the drilling pipe is guided. Under normal circumstances, when the drilling pipe drills the rock-soil, the rock-soil and gravel flow in the space of the drilling pipe along with the water flow and flow out of the internal space of the drilling pipe; the flow guide groove can guide the flow guide groove to be discharged outward, so that the rock-soil and gravel carrying the water flow are conveniently discharged outward and do not cause the problem of blockage in the drilling space; meanwhile, the flow guide groove can drive the rock-soil and gravel to rotate spirally when being discharged outward, so that the rock-soil and gravel discharged outward can generate a greater frictional force on the surrounding of the drilling space, so that the drilling pipe is more easily cut. BRIEF DESCRIPTION OF DRAWINGS

[0012] ATTACHED Figure 1 It is a structural schematic diagram of the utility model.

[0013] ATTACHED Figure 2 It is a partial structural schematic diagram of the utility model.

[0014] Reference signs shown in the drawings:

[0015] 1, motor equipment; 2, drilling pipe; 3, flow guide groove; 4, spiral structure; 5, flow guide hole. DETAILED DESCRIPTION

[0016] The utility model will be further described below in combination with specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the present application.

[0017] Because when drilling the rock-soil layer, water drilling is mostly used for convenience or to obtain samples, and when the traditional water drilling is drilled, the mud in the space around the drilling pipe 2 is blocked, and the problem that the mud cannot be effectively discharged from the drilling pipe 2 occurs. And the mixture of rock-soil and gravel in the mud not only hinders the normal drilling operation of the drilling pipe 2 when the drilling pipe 2 drills the rock-soil, but also causes abrasion to the outer wall of the drilling pipe 2, so that the cutting cannot be effectively achieved while the abrasion of the outer wall of the drilling pipe 2 is caused, thereby causing difficulties to the rock-soil sampling operation.

[0018] Based on the above problems, a rock-soil sampling device is set:

[0019] The drilling pipe 2 is provided with the motor equipment 1, the guide groove 3 is arranged on the outer wall of the drilling pipe 2, and the guide groove 3 is arranged in a continuous spiral structure 4 on the drilling pipe 2. Because when the drilling pipe 2 drills the rock and soil, the rock and soil and sand cannot follow the water flow to flow out of the drilling position smoothly, so that the rock and soil at the drilling site is accumulated more, and then the drilling pipe 2 is not conducive to sample drilling operation. After the guide groove 3 is arranged on the outer wall of the drilling pipe 2, the guide groove 3 can make the mud and sand flow into the guide groove 3 while following the rotation of the drilling pipe 2, so as to provide space for the normal flow of the mud and sand. And in the process of high-speed rotation of the drilling pipe 2, the mud and sand will be given a very fast linear velocity, and after the guide groove 3 is arranged in the spiral structure 4, the mud separated from the drilling pipe 2 can be guided, so that the fast-flowing mud impacts the rock and soil around the outer wall of the drilling pipe 2 at a faster speed, thereby further buffering the hardness strength of the rock and soil around the drilling pipe 2, so that the drilling pipe 2 is more convenient for cutting and drilling the rock and soil layer. It should be noted that the start and end positions of the guide groove 3 are not connected with the drilling end and rotating end of the drilling pipe 2, that is, to ensure that the drilling end of the drilling pipe 2 can effectively drill the rock and soil, and to ensure that the mud cannot be guided to the rotating end of the drilling pipe 2, so as to avoid affecting the normal operation of the motor equipment 1 and the worker.

[0020] The above structure is further designed and optimized as follows:

[0021] The guide holes 5 are arranged on the guide groove 3 at equal intervals, and the guide holes 5 are communicated with the inner wall of the drilling pipe 2. The guide holes 5 can communicate the inner and outer spaces of the drilling pipe 2, so that the water flow in the guide pipe enters the outer wall of the drilling pipe 2, and the mud in the guide groove 3 is diluted, thereby facilitating the outflow of the mud in the guide groove 3. It should be noted that there is no need to worry that the mud will flow into the drilling pipe 2, because the water flow will continuously flow out of the guide hole 5, so that the inner and outer pressures are inconsistent, so that more mud will not flow into the drilling pipe 2.

[0022] The guide groove 3 is a smooth arc surface structure, and the guide groove 3 is smoothly connected with the outer wall of the drilling pipe 2; so as to reduce the resistance of the mud entering the guide groove 3, and make the mud flow more smoothly.

[0023] The guide hole 5 is arranged on the drilling pipe 2 close to the drilling end, and the guide hole 5 is arranged away from the drilling pipe 2 close to the motor equipment 1. In order to avoid the problem that the water flow flows out of the guide hole 5 after the drilling pipe 2 has not entered the rock and soil layer.

[0024] Therefore, the rock-soil sampling device can conveniently cut the rock-soil layer by the drill pipe 2, so that the staff can conveniently obtain the rock-soil sample, and the difficulty of the rock-soil sample sampling operation is reduced.

Claims

1. A rock and soil sampling device, comprising a drilling tube (2) arranged in conjunction with a motor device (1), characterized in that: A guide groove (3) is provided on the outer wall of the drilling pipe (2), and the guide groove (3) is provided on the drilling pipe (2) in a continuous spiral structure (4); Furthermore, the starting and ending positions of the guide groove (3) are not connected to the drilling end and the rotating end of the drilling pipe (2).

2. A rock and soil sampling device according to claim 1, characterized in that: Diversion holes (5) are provided at equal intervals on the diversion groove (3), and the diversion holes (5) are connected to the inner wall of the drilling pipe (2).

3. A rock and soil sampling device according to claim 2, characterized in that: The interior of the guide groove (3) is a smooth cambered structure, and the guide groove (3) is smoothly connected to the outer wall of the drilling pipe (2).

4. A rock and soil sampling device according to claim 2, characterized in that: The guide hole (5) is arranged on the drilling pipe (2) at a position close to the drilling end, and the guide hole (5) is arranged away from the drilling pipe (2) and close to the motor device (1).

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