A foundation soil test detection soil sampler

Abstract

The application belongs to the technical field of soil sampling, and discloses a foundation rock-soil test detection soil sampler. The application comprises an optical axis, a hollow screw rod is inserted in a screw hole formed in the optical axis, a cylindrical block is fixedly connected to the bottom end of the hollow screw rod, a center tip is fixedly connected to the bottom surface of the cylindrical block, a conical shell is fixedly connected to the bottom end of the optical axis, the cylindrical block is inserted into a circular groove formed in the bottom of the conical shell, helical blades are fixedly connected to the surface of the optical axis, and air holes are formed in the bottom end of the hollow screw rod. When the optical axis is rotated, the helical blades can be easily screwed into the rock-soil without manual force pressing, which greatly reduces the physical consumption of the operator. Meanwhile, the screw thread cooperation structure of the hollow screw rod and the optical axis makes the movement of the cylindrical block and the center tip simple and convenient, and the soil sampling and closed storage actions can be quickly completed, thereby improving the overall soil sampling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, and in particular to a soil sampling tool for testing and inspecting foundation soil and rock. Background Technology

[0002] In foundation geotechnical engineering investigation and testing, the soil sampler is the core equipment for obtaining underground soil and rock samples. Its performance directly affects the representativeness and integrity of the samples as well as the efficiency of the soil sampling operation. Regarding the aforementioned technologies, the inventors believe that the following defects exist: Currently, there are various types of soil samplers on the market, and many soil samplers lack effective sealing devices for their sampling chambers. During the lifting process after soil sampling, the soil and rock samples are prone to fall due to gravity, resulting in sample loss. Even if some soil samplers are equipped with sealing components, their sealing action often requires complex operating procedures, and the sample is easily squeezed and deformed due to air pressure imbalance during the sealing process, which damages the original structure of the sample and affects the accuracy of subsequent test data. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a soil sampling tool for foundation soil and rock testing.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a soil sampler for testing foundation soil and rock, comprising an optical axis, a hollow screw inserted into a screw hole inside the optical axis, a cylindrical block fixedly connected to the bottom end of the hollow screw, a top point fixedly connected to the bottom surface of the cylindrical block, a conical shell fixedly connected to the bottom end of the optical axis, the cylindrical block inserted into a circular groove at the bottom of the conical shell, a helical blade fixedly connected to the surface of the optical axis, and an air hole opened at the bottom end of the hollow screw.

[0005] By adopting the above technical solution, when the optical axis rotates, it drives the spiral blades to spin into the soil and rock. The conical shell can hold the soil and rock sample. The cylindrical block and the circular groove cooperate to seal the sample. The air pores of the hollow screw balance the air pressure, ensuring that the soil collection process is smooth and the sample is not easily damaged.

[0006] Furthermore, a handwheel is fixedly sleeved on the top of the optical axis, and a disc is fixedly connected to the top of the hollow screw. The hollow screw and the optical axis are threadedly connected.

[0007] By adopting the above technical solution, the handwheel and disc provide operators with convenient force application components. By turning the handwheel, the optical axis can be easily driven to rotate, and by turning the disc, the hollow screw can be moved relative to the optical axis, thereby realizing the position adjustment of the cylindrical block and the tip, improving the labor-saving and convenience of operation.

[0008] Furthermore, the optical axis is inserted into a circular hole on the surface of the horizontal plate, the optical axis and the horizontal plate are slidably connected, and the spiral blade is located below the horizontal plate.

[0009] By adopting the above technical solution, the horizontal plate guides the optical axis, restricts the swaying of the optical axis, and enables the optical axis to maintain a stable motion trajectory during sliding, ensuring that the spiral blade can accurately rotate into the preset soil sampling position and improve the accuracy of soil sampling.

[0010] Furthermore, a sleeve is fitted onto the surface of the optical axis, the sleeve is fixedly connected to the horizontal plate via an L-shaped rod, and the sleeve is slidably connected to the optical axis.

[0011] By adopting the above technical solution, the sleeve and the horizontal plate work together to further enhance the guiding effect on the optical axis and prevent the optical axis from deflecting during the soil extraction process. At the same time, the sleeve can be used as a reference mark for the soil extraction depth, making it easier for operators to keep track of the soil extraction progress.

[0012] Furthermore, side plates are provided on both sides of the horizontal plate, and T-shaped plates are inserted into the T-shaped grooves opened on the adjacent side of the two side plates. The T-shaped plates and the side plates are slidably connected, and the two T-shaped plates are fixedly connected to both sides of the horizontal plate.

[0013] By adopting the above technical solution, the sliding fit between the T-shaped plate and the T-shaped groove allows the horizontal plate to move up and down relative to the side plate, so that the horizontal plate can automatically adjust to a horizontal state according to the terrain, ensuring the verticality of the optical axis and adapting to ground environments with different inclinations.

[0014] Furthermore, a screw rod is inserted into the screw hole two inside the T-shaped plate, the screw rod two is threadedly connected to the T-shaped plate, and a retaining ring is fixedly sleeved on the surface of the screw rod two.

[0015] By adopting the above technical solution, rotating the second screw can drive the retaining ring to squeeze the side plate, thereby fixing the horizontal plate at the required height position, realizing the precise setting of the soil sampling depth, and ensuring that the soil sampling depth meets the test requirements each time.

[0016] Furthermore, the second screw is located in a through groove opened on the surface of the side plate, and the retaining ring is located on the side of the side plate away from the horizontal plate.

[0017] By adopting the above technical solution, the through groove provides movement space for the second screw, ensuring that the second screw is not obstructed when the horizontal plate is adjusted in height. The position design of the retaining ring enables it to effectively apply pressure to the side plate, enhancing the stability of the horizontal plate after it is fixed.

[0018] Furthermore, a base plate is fixedly connected to the bottom end of the side plate, and a pointed cone is fixedly connected to the bottom end of the base plate.

[0019] By adopting the above technical solution, the base plate increases the contact area with the ground, and the pointed cone can penetrate deep into the ground, together providing stable support for the entire soil sampler, preventing the equipment from tipping over or shifting during the soil sampling process, and ensuring the safe and stable operation of the soil sampling work.

[0020] In summary, this utility model has the following beneficial effects: 1. In this application, by setting the optical axis and the spiral blades on the surface, when the optical axis is rotated, the spiral blades can easily be screwed into the rock and soil without the need for manual force to press down, which greatly reduces the physical exertion of the operator. At the same time, the threaded fit structure between the hollow screw and the optical axis makes the movement of the cylindrical block and the tip easy, and can quickly complete the soil extraction and sealing and storage actions, thus improving the overall soil extraction efficiency. 2. In this application, the conical shell can effectively store the soil and rock samples. When the cylindrical block is inserted into the circular groove, it can prevent the soil and rock inside the conical shell from falling out, ensuring that the sample remains in its original state during the removal process. In addition, the air holes opened at the bottom of the hollow screw solve the problem of high resistance caused by air pressure when the cylindrical block moves and the possible squeezing damage to the sample, further ensuring the integrity of the sample and facilitating the accuracy of subsequent test results. 3. In this application, by adjusting the height of the horizontal plate and fixing it with screw two and retaining ring, the soil sampling depth can be precisely controlled. When the handwheel on the surface of the optical shaft moves to the sleeve position, the preset soil sampling depth is reached, making the soil sampling process more controllable. 4. In this application, the bottom plate and cone at the bottom of the side plate can be inserted into the ground during soil extraction to provide stable support for the equipment. The T-shaped plate and the T-slot of the side plate are slidably connected, so that the horizontal plate can automatically adjust to a near-horizontal state under the action of gravity, regardless of whether the ground is tilted. Combined with the guiding effect of the sleeve on the optical axis, it ensures that the optical axis is close to vertical when inserted into the ground, which improves the stability of the soil extraction process and the accuracy of the soil extraction position. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Sectional view at point AA; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This utility model Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the structure of the horizontal plate and sleeve in this utility model; Figure 6 This is a schematic diagram of the side plate and bottom plate in this utility model; Figure 7 This is a schematic diagram of the conical shell and optical axis in this utility model; Figure 8 This is a schematic diagram of the hollow screw and the tip in this utility model; In the picture: 1. Optical axis; 2. Helical blade; 3. Conical shell; 4. Screw hole one; 5. Hollow screw; 6. Cylindrical block; 7. Center; 8. Circular groove; 9. Horizontal plate; 10. Sleeve; 11. L-shaped rod; 12. T-shaped plate; 13. Screw hole two; 14. Screw two; 15. Retaining ring; 16. Side plate; 17. T-shaped groove; 18. Through groove; 19. Base plate; 20. Pointed cone. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] like Figure 1-8 As shown in the embodiment of this application, a soil sampler for foundation soil and rock testing is disclosed, including an optical axis 1. A hollow screw 5 is inserted into a screw hole 4 inside the optical axis 1. A cylindrical block 6 is fixedly connected to the bottom end of the hollow screw 5. A tip 7 is fixedly connected to the bottom surface of the cylindrical block 6. A conical shell 3 is fixedly connected to the bottom end of the optical axis 1. The cylindrical block 6 is inserted into a circular groove 8 at the bottom of the conical shell 3. A spiral blade 2 is fixedly connected to the surface of the optical axis 1. An air hole is opened at the bottom end of the hollow screw 5. When the optical axis 1 rotates, it drives the spiral blade 2 to spin into the soil and rock. The conical shell 3 can accommodate the soil and rock sample. The cylindrical block 6 and the circular groove 8 cooperate to seal the sample. The air hole of the hollow screw 5 balances the air pressure, ensuring a smooth soil sampling process and preventing sample damage.

[0024] A handwheel is fixedly fitted on the top of the optical axis 1, and a disc is fixedly connected to the top of the hollow screw 5. The hollow screw 5 and the optical axis 1 are threaded together. The handwheel and the disc provide convenient force-applying components for the operator. The optical axis 1 can be easily driven to rotate by turning the handwheel, and the hollow screw 5 can be moved relative to the optical axis 1 by turning the disc, so as to realize the position adjustment of the cylindrical block 6 and the tip 7, thereby improving the labor-saving and convenience of operation.

[0025] The optical axis 1 is inserted into a circular hole on the surface of the horizontal plate 9. The optical axis 1 and the horizontal plate 9 are slidably connected. The spiral blade 2 is located below the horizontal plate 9. The horizontal plate 9 guides the optical axis 1, restricts the shaking of the optical axis 1, and ensures that the optical axis 1 maintains a stable motion trajectory during sliding. This ensures that the spiral blade 2 can be accurately screwed into the preset soil sampling position, thereby improving the accuracy of soil sampling.

[0026] A sleeve 10 is fitted on the surface of the optical axis 1. The sleeve 10 is fixedly connected to the horizontal plate 9 through an L-shaped rod 11. The sleeve 10 is slidably connected to the optical axis 1. The sleeve 10 cooperates with the horizontal plate 9 to further enhance the guiding effect on the optical axis 1 and prevent the optical axis 1 from deflecting during the soil extraction process. At the same time, the sleeve 10 can be used as a reference mark for the soil extraction depth, making it easier for operators to grasp the soil extraction progress.

[0027] Side plates 16 are provided on both sides of the horizontal plate 9. T-shaped plates 12 are inserted into the T-shaped grooves 17 on the adjacent side of the two side plates 16. The T-shaped plates 12 and the side plates 16 are slidably connected. The two T-shaped plates 12 are fixedly connected to both sides of the horizontal plate 9. The sliding fit between the T-shaped plates 12 and the T-shaped grooves 17 allows the horizontal plate 9 to move up and down relative to the side plates 16, so that the horizontal plate 9 can automatically adjust to a horizontal state according to the terrain, ensuring the verticality of the optical axis 1 and adapting to ground environments with different inclinations.

[0028] A screw rod 14 is inserted into a screw hole 13 inside the T-shaped plate 12. The screw rod 14 is threadedly connected to the T-shaped plate 12. A retaining ring 15 is fixedly sleeved on the surface of the screw rod 14. Rotating the screw rod 14 can drive the retaining ring 15 to press the side plate 16, thereby fixing the horizontal plate 9 at the required height position, realizing the precise setting of the soil sampling depth, and ensuring that the soil sampling depth meets the test requirements each time.

[0029] The second screw 14 is located in the through groove 18 opened on the surface of the side plate 16, and the retaining ring 15 is located on the side of the side plate 16 away from the horizontal plate 9. The through groove 18 provides movement space for the second screw 14, ensuring that the second screw 14 will not be obstructed when the horizontal plate 9 is adjusted in height. The position design of the retaining ring 15 enables it to effectively apply pressure to the side plate 16, enhancing the stability of the horizontal plate 9 after it is fixed.

[0030] A base plate 19 is fixedly connected to the bottom end of the side plate 16, and a pointed cone 20 is fixedly connected to the bottom end of the base plate 19. The base plate 19 increases the contact area with the ground, and the pointed cone 20 can penetrate deep into the ground. Together, they provide stable support for the entire soil sampler, prevent the equipment from tipping over or shifting during the soil sampling process, and ensure the safe and stable operation of the soil sampling work.

[0031] The working principle of the soil sampler for foundation soil and rock testing in this embodiment is as follows: During soil sampling, the rotating optical shaft 1, under the action of the spiral blade 2, allows the spiral blade 2 to spiral into the soil and rock. When the optical shaft 1 drives the conical shell 3 to be inserted to the required depth, the hollow screw 5 is rotated. The rotation of the hollow screw 5, under the action of the screw hole 4, drives the cylindrical block 6 and the tip 7 to rotate and move upward synchronously until the tip 7 moves into the interior of the conical shell 3. At this time, the optical shaft 1 continues to rotate, and under the action of the spiral blade 2, the conical shell 3 continues to move downward. At this time, the soil and rock below the conical shell 3 flows along the interior of the circular groove 8. After the light axis 1 continues to move down a suitable distance, that is, after a certain amount of rock and soil flows into the conical shell 3, the hollow screw 5 is rotated in the opposite direction, which allows the cylindrical block 6 to be inserted into the circular groove 8, thereby collecting the rock and soil inside the conical shell 3 and preventing the rock and soil flowing into the conical shell 3 from falling out. When the light axis 1 is rotated in the opposite direction, the light axis 1 can be removed from the rock and soil under the action of the spiral blade 2. Rotating the hollow screw 5 allows the cylindrical block 6 and the tip 7 to slide into the conical shell 3, thereby removing the rock and soil collected inside the conical shell 3. The hollow screw 5 has a hollow structure and an air hole at the bottom, which allows the gas inside the conical shell 3 to circulate during the movement of the cylindrical block 6, thus avoiding the problem of high movement resistance of the cylindrical block 6 due to air pressure. During soil extraction, the horizontal plate 9 is brought to a near-horizontal position. Under the influence of gravity, the side plates 16 on both sides of the horizontal plate 9 slide on the surface of the T-shaped plate 12. By stepping on the base plate 19, the pointed cone 20 can be inserted into the ground. When both side plates 16 are fixed, they are brought to a near-vertical position, making the horizontal plate 9 nearly horizontal. During this process, the horizontal plate 9 is in a near-horizontal position and is not affected by whether the ground is tilted. Furthermore, with the cooperation of the horizontal plate 9 and the sleeve 10, the optical axis 1 can move to a near-vertical position when inserted into the ground, ensuring the effectiveness of soil extraction. Furthermore, the height of the horizontal plate 9 can be adjusted according to the soil sampling depth. When the height of the horizontal plate 9 is properly adjusted, the screw 14 is rotated. Under the action of the screw hole 13, the screw 14 drives the retaining ring 15 to squeeze the side plate 16, thereby fixing the position of the horizontal plate 9. When the tip 7 contacts the ground, the distance between the sleeve 10 and the handwheel on the surface of the optical axis 1 indicates the soil sampling depth. During the soil sampling process, the handwheel on the surface of the optical axis 1 moves to the position of the sleeve 10, which indicates the soil sampling depth. By adjusting the distance between the sleeve 10 and the handwheel on the surface of the optical axis 1, the soil sampling depth can be changed.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A soil sampler for foundation soil and rock testing, comprising an optical axis (1), characterized in that: A hollow screw (5) is inserted into a screw hole (4) inside the optical axis (1). A cylindrical block (6) is fixedly connected to the bottom end of the hollow screw (5). A tip (7) is fixedly connected to the bottom surface of the cylindrical block (6). A conical shell (3) is fixedly connected to the bottom end of the optical axis (1). The cylindrical block (6) is inserted into a circular groove (8) at the bottom of the conical shell (3). A spiral blade (2) is fixedly connected to the surface of the optical axis (1). An air hole is opened at the bottom end of the hollow screw (5).

2. The soil sampler for foundation soil and rock testing according to claim 1, characterized in that: A handwheel is fixedly sleeved on the top of the optical axis (1), and a disc is fixedly connected to the top of the hollow screw (5). The hollow screw (5) and the optical axis (1) are threaded together.

3. A soil sampler for foundation soil and rock testing according to claim 1, characterized in that: The optical axis (1) is inserted into a circular hole on the surface of the horizontal plate (9), the optical axis (1) and the horizontal plate (9) are slidably connected, and the spiral blade (2) is located below the horizontal plate (9).

4. A soil sampler for foundation soil and rock testing according to claim 1, characterized in that: A sleeve (10) is fitted on the surface of the optical axis (1). The sleeve (10) is fixedly connected to the horizontal plate (9) by an L-shaped rod (11). The sleeve (10) is slidably connected to the optical axis (1).

5. A soil sampler for foundation soil and rock testing according to claim 3, characterized in that: Side plates (16) are provided on both sides of the horizontal plate (9). T-shaped plates (12) are inserted into the T-shaped grooves (17) on the adjacent side of the two side plates (16). The T-shaped plates (12) and the side plates (16) are slidably connected. The two T-shaped plates (12) are fixedly connected to both sides of the horizontal plate (9).

6. A soil sampler for foundation soil and rock testing according to claim 5, characterized in that: The screw hole (13) inside the T-shaped plate (12) is provided with a screw rod (14), the screw rod (14) and the T-shaped plate (12) are threaded together, and a retaining ring (15) is fixedly sleeved on the surface of the screw rod (14).

7. A soil sampler for foundation soil and rock testing according to claim 6, characterized in that: The second screw (14) is located in the through groove (18) opened on the surface of the side plate (16), and the retaining ring (15) is located on the side of the side plate (16) away from the horizontal plate (9).

8. A soil sampler for foundation soil and rock testing according to claim 5, characterized in that: The bottom end of the side plate (16) is fixedly connected to the bottom plate (19), and the bottom end of the bottom plate (19) is fixedly connected to the pointed cone (20).

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