Soil sampling device for sampling deep soil

Abstract

The invention discloses a soil sampling device for sampling deep soil, and relates to the technical field of soil sampling devices.The soil sampling device comprises a drill rod assembly and an output motor, a hollow clamping box is fixed to the top of the inner wall of a first drill rod, and an insertion shaft is inserted into the top end of a second drill rod through an insertion column. According to the soil sampling device for sampling the deep soil, an electric telescopic rod and an output motor are used for enabling a drill rod assembly to drill into the soil, and when a first drill rod is about to sink into the soil, a second drill rod is pulled out and locked by a lower clamping box and a hollow clamping box through rotation of the output motor and stretching and retracting of the drill rod assembly; therefore, the length of the drill rod is automatically prolonged, sampling personnel do not need to frequently disassemble the motor and assemble and splice the drill rod to realize automatic soil drilling operation, and the drawn drill rod part can be collected through automatic reverse operation to automatically shorten the length of the whole drill rod, so that the drill rod does not need to be disassembled by personnel after sampling; and the workload of sampling personnel is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling devices, in particular to a soil sampling device for sampling deep soil. Background Art

[0002] The soil sampling device is a device used to sample soil layers of different depths. In order to facilitate the sampling personnel to carry it with them and sample deep soil at the same time, the device structure is generally simplified. The simplified device structure includes a motor with a handle, several drill rods, a drill bit, and a sampling ring. When sampling deep soil, the motor is used to drill a section of the drill rod into the soil, and then the motor is separated from the drill rod, and a new drill rod is manually installed on the old drill rod. After that, the motor is connected to the top of the new drill rod, and then the above operation is repeated until the drill bit reaches the preset sampling depth.

[0003] In order to sample deep soil, the existing portable soil sampling device carries multiple drill rods. However, during sampling, the motor needs to be manually disassembled and assembled, and the drill rods need to be spliced ​​so that the overall length of the drill rods can be adapted to the depth of the drill bit as the drill bit sinks. This results in a heavy manual burden during sampling.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a soil sampling device for sampling deep soil is proposed. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a soil sampling device for sampling deep soil, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a soil sampling device for deep soil sampling, including a drill rod assembly and an output motor, the drill rod assembly including a first drill rod, a lower card box, a first penetration hole, a hollow card box, a second penetration hole, a second drill rod and a penetration clamp, a lower card box is fixed to the bottom of the inner wall of the first drill rod, and the upper surface of the lower card box is provided with a first penetration hole, a hollow card box is fixed to the top of the inner wall of the first drill rod, and the lower surface of the hollow card box is provided with a second penetration hole, a second drill rod is penetrated inside the hollow card box, and a penetration clamp is fixed to the bottom end of the second drill rod, a plug-in shaft is inserted at the top of the second drill rod through a plug column, and the top of the plug-in shaft is connected to the output motor.

[0007] Furthermore, the outer structural dimensions of the penetration clamp are matched with the inner structural dimensions of the first penetration hole and the second penetration hole, and the penetration clamp is slidably connected to the hollow card box through the second drill rod.

[0008] Furthermore, the number of the second drill rods is at least one. When the number of the second drill rods is one, the second drill rod is a solid column. When the number of the second drill rods is not one, the interior thereof is arranged in a nesting doll pattern. Except for the innermost second drill rod, the structures of the other second drill rods are consistent with the first drill rod.

[0009] Furthermore, the drill rod assembly also includes a groove and a torsion spring shaft. The inner wall of the first drill rod is provided with a groove, and the torsion spring shaft is distributed inside the groove.

[0010] Furthermore, the drill rod assembly also includes an inner support column, and the outer wall of the torsion spring shaft is fixed with the inner support column.

[0011] Furthermore, the length of the inner support columns is matched to the inner diameter of the first drill rod, and the inner support columns are staggered and distributed.

[0012] Furthermore, an electric support assembly is arranged on the top of the output motor, and the electric support assembly includes a support plate and adjustable legs, and the outer side of the support plate is provided with an adjustable leg.

[0013] Furthermore, the electric support assembly also includes an electric telescopic rod, the surface of the support plate is penetrated and fixed with the electric telescopic rod, and the bottom of the electric telescopic rod is fixedly connected to the top of the output motor.

[0014] Furthermore, a sampling drill bit assembly is fixed to the bottom of the first drill rod, and the sampling drill bit assembly includes a tube body, an electric push rod and a drill bit body. The electric push rod is fixed to the top of the inner wall of the tube body, and the bottom of the electric push rod is connected to the drill bit body.

[0015] Furthermore, the sampling drill bit assembly also includes a sampling ring, the bottom of the outer wall of the tube body is threadedly connected with the sampling ring, and the drill bit body is penetrated inside the sampling ring.

[0016] The present invention provides a soil sampling device for sampling deep soil, which has the following beneficial effects:

[0017] The soil sampling device for deep soil sampling utilizes an electric telescopic rod and an output motor to allow the drill rod assembly to drill into the soil, and when the first drill rod is about to be immersed in the soil, the output motor rotates and the drill rod assembly is extended and retracted, so that the second drill rod is drawn out and locked by a lower card box and a hollow card box, thereby automatically extending the length of the drill rod, eliminating the need for sampling personnel to frequently disassemble the motor and assemble and splice the drill rods to achieve automated soil drilling operations, and the drawn-out drill rod portion can be collected through an automatic reverse operation to automatically shorten the length of the entire drill rod, eliminating the need for personnel to disassemble the drill rod after sampling, thereby greatly reducing the workload of sampling personnel.

[0018] The soil sampling device for deep soil sampling, as the second drill rod is pulled out, the interior of the first drill rod becomes hollow, and at this time the outer wall of the inner support column loses force and rotates out through the elastic action of the torsion spring shaft, so that the end of the inner support column abuts against the opposite inner wall of the first drill rod, and the inner support columns are staggered with each other, thereby applying external support to the interior of the first drill rod from different directions, so that external support points are evenly generated at various parts of the inner wall of the first drill rod, thereby enhancing the pressure-bearing capacity of the first drill rod, and as the second drill rod is retracted, the outer wall of the inner support column is automatically reset by force so as not to hinder the extension and retraction of the second drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a soil sampling device for sampling deep soil according to the present invention during sampling;

[0020] Figure 2 It is a schematic diagram of the structure of a soil sampling device for sampling deep soil of the present invention when it is carried;

[0021] Figure 3 This is a schematic diagram of the internal structure of a first drill rod of a soil sampling device for sampling deep soil according to the present invention;

[0022] Figure 4 This is a schematic diagram of the first drill rod segmented explosion structure of a soil sampling device for sampling deep soil according to the present invention;

[0023] Figure 5 The present invention is a schematic diagram of a cross-sectional structure of a tube body of a soil sampling device for sampling deep soil.

[0024] In the figure: 1. drill rod assembly; 101. first drill rod; 102. lower card box; 103. first penetration hole; 104. hollow card box; 105. second penetration hole; 106. second drill rod; 107. penetration fixture; 108. groove; 109. torsion spring shaft; 110. inner support column; 2. plug-in shaft; 3. output motor; 4. electric support assembly; 401. support plate; 402. adjustable support leg; 403. electric telescopic rod; 5. sampling drill assembly; 501. tube body; 502. electric push rod; 503. drill body; 504. sampling ring. DETAILED DESCRIPTION

[0025] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] like Figure 1-Figure 5As shown, the present invention provides a technical solution: a soil sampling device for sampling deep soil, comprising a drill rod assembly 1 and an output motor 3, the drill rod assembly 1 comprising a first drill rod 101, a lower card box 102, a first penetration hole 103, a hollow card box 104, a second penetration hole 105, a second drill rod 106 and a penetration clamp 107, the lower card box 102 is fixed to the bottom of the inner wall of the first drill rod 101, and the upper surface of the lower card box 102 is provided with a first penetration hole 103, the hollow card box 104 is fixed to the top of the inner wall of the first drill rod 101, and the lower surface of the hollow card box 104 is provided with a second penetration hole 105, the interior of the hollow card box 104 is penetrated by a second drill rod 106, and the second A penetration fixture 107 is fixed to the bottom end of the drill rod 106, a plug-in shaft 2 is plugged into the top end of the second drill rod 106 through a plug column, and an output motor 3 is connected to the top of the plug-in shaft 2. The outer structural dimensions of the penetration fixture 107 are compatible with the inner structural dimensions of the first penetration hole 103 and the second penetration hole 105, and the penetration fixture 107 is slidably connected to the hollow card box 104 through the second drill rod 106. The number of second drill rods 106 is at least one. When the number of second drill rods 106 is one, it is a solid column. When the number of second drill rods 106 is not one, the interior thereof is arranged in a nesting doll shape, and except for the innermost second drill rod 106, the structures of other second drill rods 106 are consistent with the first drill rod 101;

[0027] The specific operation is as follows: the number of the second drill rods 106 is at least one, the optimal number is two, and the maximum number is three. When the number of the second drill rods 106 is one, it is a solid structure. When the number of the second drill rods 106 is two or three, except for the innermost second drill rod 106, the remaining drill rod structures are consistent with the first drill rod 101 structure, and only the diameter size is different. The lower card box 102, the first penetration hole 103, the hollow card box 104, the second penetration hole 105 and the groove 108, the torsion spring shaft 109, and the inner support column 110 are all provided. After the second drill rod 106 passes through the hollow card box 104, it can be extended and retracted along the inside of the first drill rod 101, and each second drill rod 106 has the same length as the first drill rod 101;

[0028] In actual use, the top of the innermost second drill rod 106 is plugged into the plug-in shaft 2, and the entire drill rod assembly 1 is in a contracted state. The insertion fixture 107 at the bottom of each second drill rod 106 passes through the first insertion hole 103 and enters the lower card box 102. As the output motor 3 drives the plug-in shaft 2 to rotate, the innermost second drill rod 106 is forced to carry the insertion fixture 107 to rotate, so that the insertion fixture 107 is misaligned with the first insertion hole 103 and thereby drives the outer second drill rod 106 to rotate, and the above operation is repeated so that the entire drill rod is driven from the inside to the outside in sequence until the first drill rod 101 rotates, and as the first drill rod 101 rotates, the drill head body 503 drills into the soil;

[0029] When the first drill rod 101 is about to completely enter the soil, the output motor 3 drives the plug shaft 2 to rotate in the opposite direction so that the piercing clamp 107 coincides with the first piercing hole 103. At this time, the output motor 3 is lifted so that the innermost second drill rod 106 is pulled out upward until the piercing clamp 107 passes through the second piercing hole 105 and enters the hollow card box 104. At this time, the output motor 3 drives the plug shaft 2 to resume forward rotation so that the piercing clamp 107 is misaligned with the second piercing hole 105 and drives the entire drill rod to rotate. At this time, the height of the drill rod is automatically extended so as to continue to drill downward.

[0030] When the drill rod needs to be collected, the above operation can be reversed to change the entire drill rod assembly 1 from the extended state to the fully retracted state;

[0031] If all the drill rods have been pulled out but have not yet reached the specified depth, the output motor 3 is lifted and the plug-in shaft 2 is separated from the top of the second drill rod 106, and then a new drill rod assembly 1 is taken out and connected to the top second drill rod 106 in the old drill rod assembly 1 through a transfer sleeve, thereby further extending the length of the entire drill rod.

[0032] like Figure 1-Figure 5 As shown, the drill rod assembly 1 further includes a groove 108 and a torsion spring shaft 109. The inner wall of the first drill rod 101 is provided with a groove 108, and the torsion spring shaft 109 is distributed inside the groove 108. The drill rod assembly 1 further includes an inner support column 110. The outer wall of the torsion spring shaft 109 is fixed with the inner support column 110. The length of the inner support column 110 is adapted to the inner diameter of the first drill rod 101, and the inner support columns 110 are staggered with each other.

[0033] The specific operation is as follows: as the second drill rod 106 is pulled out, the interior of the first drill rod 101 becomes hollow, and at this time, the outer wall of the inner support column 110 loses force and is rotated out through the elastic action of the torsion spring shaft 109, so that the end of the inner support column 110 is against the inner wall of the first drill rod 101, and the inner support columns 110 are staggered with each other, thereby adding external support to the inside of the first drill rod 101 from different directions, so that external support points are evenly generated at various parts of the inner wall of the first drill rod 101, thereby enhancing the pressure-bearing capacity of the first drill rod 101 to prevent the surface of the first drill rod 101 from collapsing due to pressure, and as the second drill rod 106 is retracted, the inner support column 110 is naturally stressed and reset through the rotation of the torsion spring shaft 109, thereby not hindering the extension and retraction of the second drill rod 106.

[0034] like Figure 1-Figure 5 As shown, an electric support assembly 4 is arranged on the top of the output motor 3, and the electric support assembly 4 includes a support plate 401 and an adjustable support leg 402, and the outer side of the support plate 401 is provided with an adjustable support leg 402, and the electric support assembly 4 also includes an electric telescopic rod 403, and the surface of the support plate 401 is penetrated and fixed with the electric telescopic rod 403, and the bottom of the electric telescopic rod 403 is fixedly connected to the top of the output motor 3;

[0035] The specific operation is as follows: the electric support assembly 4 and the drill rod assembly 1 are detachable structures. When the electric support assembly 4 is not in use, the adjustable legs 402 are rotated to be located outside the electric telescopic rod 403 to reduce the volume. When the electric support assembly 4 is in use, the adjustable legs 402 are rotated to be located outside the drill rod assembly 1. The electric telescopic rod 403 is extended and retracted to achieve the extension or shortening of the entire drill rod when the second drill rod 106 needs to be pulled out or retracted.

[0036] Based on the above description, the electric telescopic rod 403 and the output motor 3 are used to make the drill rod assembly 1 drill into the soil, and when the first drill rod 101 is about to be immersed in the soil, the second drill rod 106 is pulled out and locked by the lower card box 102 and the hollow card box 104 through the rotation of the output motor 3 and the extension of the drill rod assembly 1, thereby automatically extending the drill rod length, so that the sampling personnel do not need to frequently disassemble the motor and assemble and splice the drill rods to realize automated soil drilling operations, and the pulled-out drill rod part can be collected through automatic reverse operation to automatically shorten the length of the entire drill rod, so that there is no need for personnel to disassemble the drill rod after sampling, thereby greatly reducing the workload of the sampling personnel.

[0037] like Figure 1-Figure 5 As shown, a sampling drill bit assembly 5 is fixed at the bottom of the first drill rod 101, and the sampling drill bit assembly 5 includes a tube body 501, an electric push rod 502 and a drill bit body 503. The electric push rod 502 is fixed to the top of the inner wall of the tube body 501, and the bottom of the electric push rod 502 is connected to the drill bit body 503. The sampling drill bit assembly 5 also includes a sampling ring 504. The sampling ring 504 is threadedly connected to the bottom of the outer wall of the tube body 501, and the drill bit body 503 is penetrated inside the sampling ring 504.

[0038] The specific operation is as follows: when the drill body 503 is drilling the soil, the electric push rod 502 extends out and passes through the sampling ring 504 to be exposed. As the first drill rod 101 rotates, it will carry the drill body 503 to rotate to drill to a specified depth in the soil. When the specified depth is reached, the electric push rod 502 contracts to retract the drill body 503 into the tube 501. At this time, the drill rod continues to descend and rotate to allow the sampling ring 504 to receive and cut the soil to achieve sampling. After sampling, each drill rod is retracted in turn to carry the sample up until it reaches the surface.

[0039] In summary, when the soil sampling device for deep soil sampling is used, first when the electric support assembly 4 is used, the adjustable support leg 402 is rotated to be located outside the drill rod assembly 1 and stand on the ground surface, so that the drill rod is perpendicular to the soil surface. In actual use, the top end of the innermost second drill rod 106 is plugged into the plug-in shaft 2. At this time, the entire drill rod assembly 1 is in a contracted state, and the insertion clamp 107 at the bottom of each second drill rod 106 passes through the first insertion hole 103 and enters the lower card box 102. As the output motor 3 drives the plug-in shaft 2 to rotate, the innermost second drill rod 106 is forced to carry the insertion clamp 107 to rotate, so that the insertion clamp 107 is misaligned with the first insertion hole 103 and thereby drives the outer second drill rod 106 to rotate, and repeats the above operation so that the entire drill rod is driven from the inside to the outside in sequence until the first drill rod 101 rotates, and as the electric telescopic rod 403 is extended, the first drill rod 101 rotates and descends, so that the drill head body 503 drills into the soil;

[0040] When the first drill rod 101 is about to completely enter the soil, the output motor 3 drives the plug shaft 2 to rotate in the opposite direction so that the piercing clamp 107 coincides with the first piercing hole 103. At this time, the output motor 3 is lifted so that the innermost second drill rod 106 is pulled out upward until the piercing clamp 107 passes through the second piercing hole 105 and enters the hollow card box 104. At this time, the output motor 3 drives the plug shaft 2 to resume forward rotation so that the piercing clamp 107 is misaligned with the second piercing hole 105 and drives the entire drill rod to rotate. At this time, the height of the drill rod is automatically extended so as to continue to drill downward.

[0041] As the second drill rod 106 is pulled out, the first drill rod 101 is hollow inside. At this time, the outer wall of the inner support column 110 loses force and rotates out through the elastic action of the torsion spring shaft 109, so that the end of the inner support column 110 abuts against the inner wall of the first drill rod 101, and the inner support columns 110 are staggered and distributed with each other, thereby adding external support to the inside of the first drill rod 101 from different directions, so that external support points are evenly generated at various parts of the inner wall of the first drill rod 101, thereby enhancing the pressure bearing capacity of the first drill rod 101;

[0042] When the drill bit body 503 is drilling the soil, the electric push rod 502 extends out and passes through the sampling ring 504 to be exposed. As the first drill rod 101 rotates, the drill bit body 503 is driven to rotate to drill to a specified depth in the soil. When the specified depth is reached, the electric push rod 502 contracts to retract the drill bit body 503 into the tube body 501. At this time, the drill rod continues to descend and rotate to allow the sampling ring 504 to receive and cut the soil to achieve sampling.

[0043] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A soil sampling device for sampling deep soil, comprising a drill rod assembly (1) and an output motor (3), characterized in that: The drill rod assembly (1) comprises a first drill rod (101), a lower card box (102), a first penetration hole (103), a hollow card box (104), a second penetration hole (105), a second drill rod (106) and a penetration clamp (107); the lower card box (102) is fixed to the bottom of the inner wall of the first drill rod (101), and the upper surface of the lower card box (102) is provided with the first penetration hole (103); the first drill rod (101) A hollow card box (104) is fixed on the top of the inner wall, and a second penetration hole (105) is opened on the lower surface of the hollow card box (104); a second drill rod (106) is penetrated inside the hollow card box (104), and a penetration clamp (107) is fixed to the bottom end of the second drill rod (106); a plug-in shaft (2) is plugged into the top end of the second drill rod (106) through a plug column, and an output motor (3) is connected to the top of the plug-in shaft (2).

2. A soil sampling device for deep soil sampling according to claim 1, characterized in that: The external structural dimensions of the penetration clamp (107) are compatible with the internal structural dimensions of the first penetration hole (103) and the second penetration hole (105), and the penetration clamp (107) is slidably connected to the hollow card box (104) via the second drill rod (106).

3. A soil sampling device for deep soil sampling according to claim 1, characterized in that: The number of the second drill rods (106) is at least one. When the number of the second drill rods (106) is one, it is a solid column. When the number of the second drill rods (106) is not one, the interior thereof is arranged in a nesting doll pattern. Except for the innermost second drill rod (106), the structure of the other second drill rods (106) is consistent with that of the first drill rod (101).

4. A soil sampling device for sampling deep soil according to claim 1, characterized in that: The drill rod assembly (1) further comprises a groove (108) and a torsion spring shaft (109); the inner wall of the first drill rod (101) is provided with a groove (108), and the torsion spring shaft (109) is distributed inside the groove (108).

5. A soil sampling device for sampling deep soil according to claim 4, characterized in that: The drill rod assembly (1) further comprises an inner support column (110), and the outer wall of the torsion spring shaft (109) is fixed with the inner support column (110).

6. A soil sampling device for sampling deep soil according to claim 5, characterized in that: The length of the inner support columns (110) is matched to the inner diameter of the first drill rod (101), and the inner support columns (110) are arranged in a staggered manner.

7. A soil sampling device for sampling deep soil according to claim 1, characterized in that: An electric support assembly (4) is arranged on the top of the output motor (3), and the electric support assembly (4) comprises a support plate (401) and an adjustable support leg (402), and the outer side of the support plate (401) is provided with an adjustable support leg (402).

8. A soil sampling device for sampling deep soil according to claim 7, characterized in that: The electric support assembly (4) further comprises an electric telescopic rod (403), the surface of the support plate (401) is provided with the electric telescopic rod (403) fixed thereon, and the bottom of the electric telescopic rod (403) is fixedly connected to the top of the output motor (3).

9. A soil sampling device for sampling deep soil according to claim 1, characterized in that: A sampling drill bit assembly (5) is fixed at the bottom of the first drill rod (101), and the sampling drill bit assembly (5) comprises a tube body (501), an electric push rod (502) and a drill bit body (503). The electric push rod (502) is fixed to the top of the inner wall of the tube body (501), and the bottom of the electric push rod (502) is connected to the drill bit body (503).

10. A soil sampling device for deep soil sampling according to claim 9, characterized in that: The sampling drill bit assembly (5) further comprises a sampling ring (504), the bottom of the outer wall of the tube body (501) is threadedly connected with the sampling ring (504), and the drill bit body (503) is penetrated inside the sampling ring (504).

Images