Sampling head of geological engineering sampling device

Abstract

The utility model discloses a sampling head of a geological engineering sampling device, and relates to the technical field of geological engineering, the sampling head comprises a support and a plurality of sampling barrels which are arranged at the bottom of the support and spliced end to end, a fixing plate is arranged at the top end of each sampling barrel, and a threaded rod is fixedly arranged at the top of each fixing plate; a rotating plate used for driving the sampling barrel to rotate is fixedly arranged at the upper end of the threaded rod, a conical sampling head is arranged at the bottom end of the sampling barrel, a switching mechanism used for switching the shape of the sampling head is arranged above the conical sampling head, and a fixing assembly used for supporting and limiting the switching mechanism is arranged on the rotating plate; the sawtooth head can stretch out and draw back through the conversion mechanism, the sampling head structure of the sampling device can be immediately changed, the sampling head can be suitable for the current soil geological condition, the sawtooth head can be supported and limited through the fixing assembly, and the original conical sampling head structure of the sampling device is converted into the sawtooth-shaped sampling head; therefore, the soil with relatively hard geology can be sampled.

Description

Technical Field

[0001] This application relates to the field of geological engineering technology, and in particular to a sampling head of a geological engineering sampling device. Background Technology

[0002] Geological engineering is the science that studies geological problems and uses engineering methods to solve them. It focuses on the study of geological phenomena, geological genesis and evolution, geological laws, and the interaction between geology and engineering. It focuses on the earth's rock and soil bodies, geological structures, etc., and aims to use scientific theories and advanced technologies to solve geological problems in various engineering constructions.

[0003] Most existing devices are spliced ​​together, allowing the length of the sampling device to be changed as needed to achieve a suitable sampling depth. However, the soil geology at depth is complex, and the head of the existing sampling device cannot be switched immediately during use, making it unsuitable for complex geology and thus affecting the progress of geological engineering sampling work. Utility Model Content

[0004] In order to address the problem that the head of a sampling device is not suitable for soils with different geological conditions, this application provides a sampling head for a geological engineering sampling device.

[0005] The sampling head of the geological engineering sampling device provided in this application adopts the following technical solution:

[0006] A sampling head for a geological engineering sampling device includes a support and a plurality of sampling barrels connected end to end at the bottom of the support. A fixing plate is provided at the top of the sampling barrel, and a threaded rod is fixedly provided at the top of the fixing plate. A rotating plate for driving the sampling barrel to rotate is fixedly provided at the upper end of the threaded rod. A conical sampling head is provided at the bottom of the sampling barrel. A conversion mechanism for switching the shape of the sampling head is provided above the conical sampling head. A fixing component for providing support and limiting function for the conversion mechanism is provided on the rotating plate. The fixing component includes an insert rod that passes through the threaded rod.

[0007] The conversion mechanism includes a conical sampling head with a serrated head that can extend out of the bottom of the conical sampling head. The conical sampling head has a groove for the serrated head to move. Two connecting rods that penetrate the surface of the conical sampling head are fixedly installed at the upper end of the serrated head. Two connecting rods are installed on the side wall of the sampling barrel. Two connecting rods move through the surface of the fixing plate. A strong magnet is embedded in the connection between each pair of connecting rods.

[0008] By adopting the above technical solution, the conversion mechanism can extend and retract the serrated head, which can immediately change the sampling head structure of the sampling device, making the sampling head suitable for the current soil geological conditions. The fixing component can provide support and limit the serrated head, so that the original conical sampling head structure of the sampling device can be converted into a serrated sampling head, thereby enabling sampling of soil with relatively hard geology.

[0009] Preferably, the connecting rod passes through the fixing plate and extends above the fixing plate, and a spring is sleeved on the surface of the extended portion of the connecting rod.

[0010] By adopting the above technical solution, the connecting rod passes through the fixed plate to the top of the fixed plate, so that the support block can drive the connecting rod to move downward, thereby allowing the saw tooth head to extend.

[0011] Preferably, a support block is fixedly provided at the upper end of the spring, the lower end of the spring is fixedly connected to the top surface of the fixed plate, and the bottom surface of the support block is fixedly connected to the top end of the connecting rod.

[0012] By adopting the above technical solution, the spring can spring the support block back to its original position, so that the support block can drive the connecting rod to retract the sawtooth head.

[0013] Preferably, the fixing component includes a fixing block fixedly disposed on the top of the rotating plate, and a plug rod is provided through the middle of the fixing block.

[0014] By adopting the above technical solution, the fixing component can provide a limiting function for the conversion mechanism and can support the saw head.

[0015] Preferably, the bottom end of the insertion rod is fixedly connected to the top of the support block through the threaded rod.

[0016] By adopting the above technical solution, the bottom end of the insertion rod is fixedly connected to the top of the support block, so that the insertion rod and the support block form a whole, which enhances the stability of the structure.

[0017] Preferably, the surfaces of the fixing block and the insertion rod are provided with limiting holes for the movement of the limiting rod.

[0018] By adopting the above technical solution, the insertion of the limiting rod into the limiting hole can restrict the movement of the rod.

[0019] Preferably, a limiting baffle is fixedly sleeved on the side of the bottom end of the threaded rod, the upper surface of the limiting baffle abuts against the inner top surface of the bracket, and the lower surface of the limiting baffle abuts against the top surface of the support block.

[0020] By adopting the above technical solution, the limiting baffle can prevent the threaded rod from rotating too much, thereby protecting the connecting rod and the fixing plate from directly colliding with the bracket.

[0021] Preferably, the bottom end of the threaded rod has a groove for the support block to move.

[0022] By adopting the above technical solution, a groove is opened at the bottom end of the threaded rod to facilitate the movement of the support block.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] The conversion mechanism allows for the extension and retraction of the serrated head, instantly changing the sampling head structure of the sampling device to suit the current soil geological conditions. The fixing component provides support and limitation for the serrated head, transforming the original conical sampling head structure of the sampling device into a serrated sampling head, thus enabling sampling of harder soil. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main body of this application;

[0026] Figure 2 This is a schematic diagram of the threaded rod structure of this application;

[0027] Figure 3 This is a schematic diagram of the connecting rod structure of this application;

[0028] Figure 4 This is a schematic diagram of the connecting rod and strong magnet structure of this application;

[0029] Figure 5 This is a top view of the cross-section of the conical sampling head in this application;

[0030] Figure 6 This is a schematic diagram of the serrated head structure of this application;

[0031] Figure 7 This is a schematic diagram of the internal structure of the cone-shaped sampling head in this application;

[0032] Figure 8 This is a schematic diagram of the serrated head extension of this application.

[0033] Attached reference numerals: 1. Conical sampling head;

[0034] 2. Conversion mechanism; 21. Serrated head; 22. Slide groove; 23. Connecting rod; 24. Strong magnet; 25. Support block; 26. Spring; 28. Limiting baffle;

[0035] 3. Fixing component; 31. Fixing block; 32. Limiting rod; 33. Inserting rod; 34. Limiting hole;

[0036] 4. Support; 5. Sampling bucket; 6. Threaded rod; 61. Groove; 7. Rotating plate; 8. Fixing plate. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0038] This application discloses a sampling head for a geological engineering sampling device.

[0039] Reference Figures 1-3 A sampling head for a geological engineering sampling device includes a support 4 and a plurality of sampling barrels 5 spliced ​​together at the bottom of the support 4. Connecting plates are provided on the bottom side of the fixing plate 8 and the bottom side of the sampling barrels 5. Buckles corresponding to the connecting plates are provided on the top side of the sampling barrels 5 and the top side of the conical sampling head 1, which can allow multiple sampling barrels 5 to be spliced ​​together without separation, thereby changing the length of the sampling barrels 5. The inner side of the fixing plate 8 is fixedly snapped to the top of the adjacent sampling barrel 5, and the top of the conical sampling head 1 is fixedly snapped to the bottom of the adjacent sampling barrel 5. The bottom end of the threaded rod 6 is fixedly connected to the middle of the top surface of the fixing plate 8. A groove 61 is provided on the bottom surface of the threaded rod 6 to facilitate the movement of the support block 25. The upper end of the threaded rod 6 is fixedly connected to the bottom of the rotating plate 7. The threaded rod 6 is threadedly connected to the middle of the support 4. A rotating rod is provided on one side of the top of the rotating plate 7 to drive the rotating plate 7 to rotate.

[0040] In use, the rotating plate 7 is rotated, and the rotating plate 7 drives the threaded rod 6 to rotate synchronously. At this time, the threaded rod 6 moves on the bracket 4. The rotation of the threaded rod 6 can make the sampling bucket 5 and the conical sampling head 1 at the bottom of the sampling bucket 5 move downward while rotating, which can further enable the deep soil to be loaded into the sampling bucket 5, thereby completing the sampling.

[0041] Reference Figures 1-2 The fixing component 3 includes a fixing block 31 fixedly mounted on the top of the rotating plate 7. The middle of the fixing block 31 and the middle of the threaded rod 6 are both provided with circular grooves. The inner wall of the circular groove is movably connected to the insertion rod 33. The top side of the insertion rod 33 and the side of the fixing block 31 are both provided with limiting holes 34. The inner wall of the limiting hole 34 is slidably connected to the surface of the limiting rod 32. The surface of the insertion rod 33 is slidably connected through the circular groove inside the threaded rod 6. The bottom end of the insertion rod 33 is fixedly connected to the top of the support block 25. When the support block 25 slides up and down inside the groove 61, the limiting hole 34 on the fixing block 31 and the limiting hole 34 on the insertion rod 33 are always in the same direction to facilitate the insertion of the limiting rod 32.

[0042] When switching to the serrated sampling head, the fixing component 3 needs to provide support and limit the conversion mechanism 2. First, move the limiting rod 32 out of the limiting hole 34 and push the insertion rod 33 downward. When the insertion rod 33 moves downward, it drives the support block 25 to move downward, further causing the serrated head 21 to extend out of the bottom of the sampling head and limit the insertion rod 33. At this time, the limiting hole 34 at the higher part of the insertion rod 33 is aligned with the limiting hole 34 on the surface of the fixing block 31. Then, insert the limiting rod 32 into the limiting hole 34 to limit it.

[0043] Reference Figures 2-8 The conversion mechanism 2 includes a cone-shaped sampling head 1 with a serrated head 21 inside. The cone-shaped sampling head 1 has a groove 22 inside. The serrated head 21 is slidably connected to the inner wall of the groove 22. The serrated head 21 has a circular ring-shaped structure with serrations. The front half of its serrated part is a trapezoidal structure. The length of the front half of the serrated part is less than the length of the rear half. This allows the serrated head 21 to discharge the soil embedded in the groove 22 when it extends out of the bottom of the cone-shaped sampling head 1, without affecting subsequent use. When the serrated head 21 retracts into the cone-shaped sampling head 1, the bottom of its serrated head 21 is flush with the bottom of the cone-shaped sampling head 1.

[0044] Two symmetrically distributed connecting rods 23 are fixedly installed on the top of the saw head 21. Two symmetrically distributed connecting rods 23 are also installed through the surface of the fixing plate 8. Two symmetrically distributed connecting rods 23 are installed on the side wall of each sampling bucket 5. A strong magnet 24 is embedded in the end face of the connection between each pair of connecting rods 23. The strong magnet 24 connects several connecting rods 23 end to end to form a whole, so as to control the extension and retraction of the saw head 21. The top of the connecting rod 23 is fixedly connected to the bottom of the support block 25. A spring 26 is sleeved on the outside of the top connecting rod 23. The upper end of the spring 26 is fixedly connected to the bottom of the support block 25. The top of plate 8 is fixedly connected to the lower end of spring 26. Spring 26 can spring the support block 25 back to its original position. The bottom of threaded rod 6 is fixedly connected to the top of limiting baffle 28. The side of limiting baffle 28 near bracket 4 abuts against the inner top surface of bracket 4. The side of limiting baffle 28 near support block 25 abuts against the top of support block 25. The maximum distance that support block 25 can move up and down inside groove 61 is the length of the bottom end of sawtooth head 21 protruding from conical sampling head 1. At the same time, the distance between the two limiting holes 34 on insertion rod 33 is the same as the maximum distance that support block 25 can move up and down inside groove 61, so as to better control the extension and retraction of sawtooth head 21.

[0045] When sampling hard soil, the limiting component 3 can be released first. By moving the insertion rod 33 downward, the support block 25 will move downward. When the support block 25 moves downward, the connecting rod 23 at the top will move downward. At the same time, due to the magnetic attraction of the strong magnet 24, the connecting rod 23 connected end to end moves downward synchronously, causing the connecting rod 23 at the bottom to also move downward, driving the serrated head 21 downward. The serrated part of the serrated head 21 will be fully extended from the bottom of the conical sampling head 1. Then, the limiting component 3 will be used to fix it, so that the conical sampling head 1 is converted into a serrated sampling head, which can be used to sample hard soil.

[0046] The implementation principle of the sampling head of the geological engineering sampling device in this application embodiment is as follows: the shape of the sampling head of the sampling device can be switched according to the needs of different geology, without having to take out the sampling device and replace it with a different sampling head for reassembly. The fixed component 3 provides limiting support for the conversion mechanism 2, pushing the serrated head 21 out of the bottom of the conical sampling head 1 and converting it into a serrated sampling head, thereby collecting samples from hard soil.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sampling head for a geological engineering sampling device, comprising a support (4) and a plurality of sampling buckets (5) joined end-to-end at the bottom of the support (4), wherein a fixing plate (8) is provided at the top of the sampling buckets (5), a threaded rod (6) is fixedly provided at the top of the fixing plate (8), and a rotating plate (7) for driving the sampling buckets (5) to rotate is fixedly provided at the upper end of the threaded rod (6), characterized in that: The bottom end of the sampling barrel (5) is provided with a conical sampling head (1), a conversion mechanism (2) for switching the shape of the sampling head is arranged above the conical sampling head (1), and a fixed component (3) for providing supporting and limiting action for the conversion mechanism (2) is arranged on the rotating plate (7). The conversion mechanism (2) comprises a sawtooth head (21) arranged inside the conical sampling head (1) and capable of extending from the bottom of the conical sampling head (1), a sliding groove (22) is formed in the conical sampling head (1) for the movement of the sawtooth head (21), two connecting rods (23) are fixedly arranged at the upper end of the sawtooth head (21) and penetrate the surface of the conical sampling head (1), two connecting rods (23) are arranged on the side wall of the sampling barrel (5), and two connecting rods (23) movably penetrate the surface of the fixed plate (8), and a strong magnet (24) is embedded between the connecting rods (23).

2. A sampling head for a geological engineering sampling device according to claim 1, wherein: The connecting rod (23) penetrates the fixed plate (8) and extends above the fixed plate (8), and a spring (26) is sleeved on the surface of the part of the connecting rod (23) extending out.

3. A sampling head for a geological engineering sampling device according to claim 2, wherein: The upper end of the spring (26) is fixedly provided with a supporting block (25), the lower end of the spring (26) is fixedly connected with the top surface of the fixed plate (8), and the bottom surface of the supporting block (25) is fixedly connected with the top end of the connecting rod (23).

4. The sampling head of a geological engineering sampling device according to claim 1, characterized in that: The fixed component (3) comprises a fixed block (31) fixedly arranged on the top of the rotating plate (7), and an insertion rod (33) penetrates the fixed block (31).

5. A sampling head for a geological engineering sampling device according to claim 4, wherein: The bottom end of the insertion rod (33) is fixedly connected with the top of the supporting block (25) through a threaded rod (6).

6. A sampling head for a geological engineering sampling device according to claim 4, wherein: Limiting holes (34) are formed in the surface of the fixed block (31) and the insertion rod (33) for the movement of a limiting rod (32).

7. The sampling head of a geological engineering sampling device according to claim 1, characterized in that: A limiting baffle (28) is fixedly sleeved on the side surface of the bottom end of the threaded rod (6), the upper surface of the limiting baffle (28) abuts against the inner top surface of the support (4), and the lower surface of the limiting baffle (28) abuts against the top surface of the supporting block (25).

8. The sampling head of a geological engineering sampling device of claim 1, wherein: A groove (61) is formed in the bottom end of the threaded rod (6) for the movement of the supporting block (25).

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