Soil sampling drill bit

Abstract

The utility model relates to the technical field of soil sampling, in particular to a soil sampling drill bit which comprises a shell, a collecting rod is rotatably connected to the inner wall of the shell, three rectangular holes are formed in the outer surface of the shell, three cavities are formed in the collecting rod, three collecting holes are formed in the rod wall of the collecting rod, and the collecting holes are communicated with the rectangular holes. An auxiliary rotating mechanism is arranged at the top of the shell and can assist rotation between the collecting rod and the shell. By arranging the shell, the collecting rod, the rectangular hole, the collecting hole, the cavity and the auxiliary rotating mechanism, when the drill bit is used for sampling soil, the drill bit can be used for collecting soil layers with different depths in a diversified manner, the pollution degree of the soil can be reflected more accurately, and in the multi-layer sampling process, the sampling efficiency is greatly improved. Samples of soil layers with different depths can be prevented from being mixed together, and the accuracy of sampling data is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling, in particular to a soil sampling drill bit. Background Art

[0002] Soil sampling refers to the method of collecting soil samples, including the layout of sampling and sampling technology. The collection of soil samples is the basic work in the fields of soil analysis research and geological exploration. By analyzing and studying soil samples, we can understand the actual condition of the soil. In order to monitor the environment and soil quality, it is necessary to sample and analyze the soil to determine the content of heavy metals in the soil and the degree of heavy metal pollution in the soil.

[0003] After searching, the applicant found that a Chinese patent disclosed "a new type of mechanical soil sampler drill bit", and its Chinese utility model with the publication (announcement) number of "CN208366645U" can achieve the effect of quick assembly before drilling into the soil and easy disassembly during sampling, which effectively solves the difficulty of collecting subsequent soil samples due to the high adhesion of the soil inside the drill bit, which cannot be removed and sampled. It can also perform soil sampling at different depths according to sampling requirements. However, most of the existing soil sampling drill bits cannot sample soil at different depths at the same time during sampling. The drill bit needs to be repeatedly inserted into the soil for sampling multiple times, which reduces the work efficiency of the sampling personnel. Moreover, when the drill bit is taken out of the soil, samples of soil layers at different depths are easily mixed together, affecting the accuracy of the sampling data. Utility Model Content

[0004] In view of this, the purpose of the utility model is to propose a soil sampling drill bit to solve the problem that most of the existing soil sampling drill bits cannot sample soil of different depths at the same time during sampling, and the drill bits need to be repeatedly inserted into the soil for sampling multiple times, which reduces the work efficiency of the samplers, and when the drill bit is taken out of the soil, samples of soil layers of different depths are easily mixed together, affecting the accuracy of the sampling data.

[0005] Based on the above purpose, the utility model provides a soil sampling drill bit, including a shell, the inner wall of the shell is rotatably connected to a collecting rod, the outer surface of the shell is provided with three rectangular holes, the interior of the collecting rod is provided with three cavities, the rod wall of the collecting rod is provided with three collecting holes, and the top of the shell is provided with an auxiliary rotation mechanism, which can assist the rotation between the collecting rod and the shell.

[0006] Preferably, the auxiliary rotation mechanism includes a connecting sleeve, the bottom surface of the connecting sleeve is fixedly connected to the top surface of the shell, the top surface of the connecting sleeve is fixedly connected to a top cover, the inner wall of the connecting sleeve is fixedly connected to two first clamping blocks, and the upper side of the collecting rod wall is fixedly connected to a second clamping block.

[0007] Preferably, a mounting piece is fixedly connected to the top surface of the top cover.

[0008] Preferably, the two first clamping blocks are both L-shaped, the second clamping block is T-shaped, and the contact surface of the first clamping block fits tightly with the contact surface of the second clamping block.

[0009] Preferably, the three rectangular holes are equidistantly opened on the outer surface of the shell, the three collecting holes are equidistantly opened on the rod wall of the collecting rod, the rectangular holes are consistent with the collecting holes in shape and size, and the three collecting holes correspond one-to-one to the corresponding cavities respectively.

[0010] Preferably, the bottom of the housing is conical in design and is provided with threads.

[0011] Preferably, the bottom surface of the second clamping block is slidably connected to the lower side of the inner wall of the connecting sleeve.

[0012] Beneficial effects of the utility model:

[0013] 1. In the utility model, by setting a shell, a collecting rod, a rectangular hole, a collecting hole, a cavity and an auxiliary rotating mechanism, when the drill bit is sampling soil, the rectangular hole and the collecting hole are initially misaligned, and the shell is rotated forward to move the drill bit. When the drill bit moves to a suitable depth, the shell is rotated reversely, and the rectangular hole and the collecting hole are on the same side through the first clamping block and the second clamping block. The soil enters the cavity through the rectangular hole, and finally the shell is rotated forward again to make the rectangular hole and the collecting hole misaligned again, so as to avoid the mixing of soils of different depths when the drill bit is disengaged. Compared with the prior art, the drill bit can realize diversified collection of soil layers of different depths, more accurately reflect the degree of soil pollution, and in the process of multi-layer sampling, it can prevent samples of soil layers of different depths from mixing together, thereby ensuring the accuracy of sampling data.

[0014] 2. In the utility model, by setting three cavities, a rectangular hole and a collecting hole, it is convenient for the drill bit to collect soil samples at different depths at the same time, avoiding repeatedly inserting the drill bit into the soil, which is convenient and quick, and improves the sampling efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0017] Figure 2 This is an exploded schematic diagram of the housing and the collecting rod of the embodiment of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of a connecting sleeve according to an embodiment of the utility model;

[0019] Figure 4 A schematic diagram of the cross-sectional structure of a collecting rod is provided for an embodiment of the utility model;

[0020] Figure 5 For the utility model embodiment Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0021] The markings in the figure are:

[0022] 1. Shell; 2. Collecting rod; 3. Rectangular hole; 4. Collecting hole; 5. Cavity; 6. Connecting sleeve; 7. Top cover; 8. First clamping block; 9. Second clamping block; 10. Mounting piece. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figure 1-5As shown, a soil sampling drill comprises a shell 1, the inner wall of the shell 1 is rotatably connected with a collecting rod 2, the outer surface of the shell 1 is provided with three rectangular holes 3, the interior of the collecting rod 2 is provided with three cavities 5, and the rod wall of the collecting rod 2 is provided with three collecting holes 4. By providing the three cavities 5, the rectangular holes 3 and the collecting holes 4, it is convenient for the drill to collect soil samples of different depths at the same time, avoiding repeatedly inserting the drill into the soil, which is convenient and fast, and improves the sampling efficiency of the staff. An auxiliary rotating mechanism is provided on the top of the shell 1, and the auxiliary rotating mechanism can assist the rotation between the collecting rod 2 and the shell 1. By providing the shell 1, the collecting rod 2, the rectangular holes 3, the collecting holes 4, the cavities 5 and the auxiliary rotating mechanism, the drill can perform soil sampling when the drill is used. When the drill bit moves to a suitable depth, the shell 1 is rotated in the reverse direction, and the rectangular hole 3 and the collecting hole 4 are on the same side through the first clamping block 8 and the second clamping block 9. The soil enters the cavity 5 through the rectangular hole 3, and finally the shell 1 is rotated forward again to make the rectangular hole 3 and the collecting hole 4 misaligned again, so as to avoid the soil of different depths being mixed together when the drill bit is disengaged. Compared with the prior art, the drill bit can realize diversified collection of soil layers of different depths, more accurately reflect the degree of soil pollution, and in the process of multi-layer sampling, it can prevent samples of soil layers of different depths from being mixed together, thereby ensuring the accuracy of sampling data.

[0026] like Figure 3 and Figure 5 As shown, the auxiliary rotation mechanism includes a connecting sleeve 6, the bottom surface of the connecting sleeve 6 is fixedly connected to the top surface of the shell 1, and the top surface of the connecting sleeve 6 is fixedly connected to a top cover 7. By setting the top cover 7, foreign debris is prevented from falling into the interior of the connecting sleeve 6, thereby causing problems in the clamping of the first clamping block 8 and the second clamping block 9, thereby ensuring the use effect of the device. The inner wall of the connecting sleeve 6 is fixedly connected with two first clamping blocks 8, and the upper side of the rod wall of the collecting rod 2 is fixedly connected with a second clamping block 9. The second clamping block 9 is initially clamped with one of the first clamping blocks 8, so that the rectangular hole 3 and the collecting hole 4 are initially misaligned, thereby preventing samples from entering the interior of the cavity 5 when the drill bit enters the soil.

[0027] like Figure 1 , Figure 2 and Figure 5 As shown, the top surface of the top cover 7 is fixedly connected with a mounting member 10, and the mounting member 10 is a prior art, that is, a fixed mechanism for connecting two components, which will not be described in detail below. The two first clamping blocks 8 are both L-shaped, and the second clamping block 9 is T-shaped. The contact surface of the first clamping block 8 fits tightly with the contact surface of the second clamping block 9. The L-shaped design and the T-shaped design can ensure the clamping effect and avoid slipping.

[0028] like Figure 1 , Figure 4and Figure 5 As shown, three rectangular holes 3 are equidistantly provided on the outer surface of the shell 1, and three collecting holes 4 are equidistantly provided on the rod wall of the collecting rod 2. The rectangular holes 3 and the collecting holes 4 are consistent in shape and size, and the three collecting holes 4 correspond to the corresponding cavities 5 one by one, so as to prevent soil from passing through the rectangular holes 3 but not entering the cavity 5 through the collecting holes 4, thereby ensuring the use effect of the device. The bottom of the shell 1 is conical in design and has threads, so as to improve the drilling efficiency of the drill bit. The bottom surface of the second clamping block 9 is slidably connected to the lower side of the inner wall of the connecting sleeve 6, so as to prevent the second clamping block 9 from being deformed and displaced during use, thereby ensuring the service life of the device.

[0029] Working principle of the utility model: When the utility model is in use, it is first connected to the motor through the mounting piece 10, and then the motor is started, and the connecting sleeve 6 is driven by the motor to rotate forward. The connecting sleeve 6 ensures that the collecting rod 2 does not rotate inside the shell 1 through the first clamping block 8 and the second clamping block 9, so that the shell 1 rotates forward, allowing the drill bit to penetrate into the soil. When the drill bit moves to a suitable position, the connecting sleeve 6 is reversely rotated by the motor, so that the second clamping block 9 is clamped with another first clamping block 8, so that the shell 1 and the collecting rod 2 rotate relative to each other, so that the rectangular hole 3 and the collecting hole 4 are on the same side, and then the soil samples of different depths enter the cavities 5 of different depths, and finally the connecting sleeve 6 is rotated forward to make the rectangular hole 3 and the collecting hole 4 misaligned again, so as to avoid the mixing of soil samples of different depths when the drill bit is pulled out, thereby ensuring the accuracy of the sampling data.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0031] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A soil sampling drill bit, comprising a housing (1), characterized in that: The inner wall of the shell (1) is rotatably connected to a collecting rod (2); the outer surface of the shell (1) is provided with three rectangular holes (3); the interior of the collecting rod (2) is provided with three cavities (5); the rod wall of the collecting rod (2) is provided with three collecting holes (4); an auxiliary rotating mechanism is provided on the top of the shell (1); the auxiliary rotating mechanism can assist the rotation between the collecting rod (2) and the shell (1).

2. A soil sampling drill bit according to claim 1, characterized in that: The auxiliary rotating mechanism comprises a connecting sleeve (6), the bottom surface of the connecting sleeve (6) is fixedly connected to the top surface of the shell (1), the top surface of the connecting sleeve (6) is fixedly connected to a top cover (7), the inner wall of the connecting sleeve (6) is fixedly connected to two first clamping blocks (8), and the upper side of the rod wall of the collecting rod (2) is fixedly connected to a second clamping block (9).

3. A soil sampling drill bit according to claim 2, characterized in that: A mounting member (10) is fixedly connected to the top surface of the top cover (7).

4. A soil sampling drill bit according to claim 2, characterized in that: The two first clamping blocks (8) are both L-shaped, and the second clamping block (9) is T-shaped. The contact surface of the first clamping block (8) fits tightly with the contact surface of the second clamping block (9).

5. A soil sampling drill bit according to claim 1, characterized in that: The three rectangular holes (3) are equidistantly formed on the outer surface of the shell (1); the three collecting holes (4) are equidistantly formed on the rod wall of the collecting rod (2); the rectangular holes (3) and the collecting holes (4) are consistent in shape and size; and the three collecting holes (4) correspond one to one with the corresponding cavities (5).

6. A soil sampling drill bit according to claim 1, characterized in that: The bottom of the housing (1) is of conical design and is provided with threads.

7. A soil sampling drill bit according to claim 2, characterized in that: The bottom surface of the second clamping block (9) is slidably connected to the lower side of the inner wall of the connecting sleeve (6).

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