Sampling device for geotechnical engineering investigation

Abstract

The utility model discloses a geotechnical engineering investigation sampling device, which relates to the field of geotechnical survey and comprises a fixed plate, a fixed rod is arranged at the top of the fixed plate, a movable plate is movably mounted outside the fixed rod, a sleeve is arranged at the top of the movable plate, and a sampling pipe is movably mounted at the bottom of the movable plate. A driving assembly is arranged at the top of the movable plate, the output end of the driving assembly is connected with a connecting rod, a heavy hammer is movably installed outside the sleeve, and a metal rod is arranged on the side face of the heavy hammer. Through the sleeve, the lead screw and the inner threaded pipe, when the inner threaded pipe rotates, the lead screw is driven to ascend, the protruding block at the end of the lead screw is limited by the inner protruding ring in the sleeve, then the lead screw drives the sleeve to ascend, the sleeve ascends to drive the sampling pipe to ascend, the sampling pipe can be pulled out from the interior of rock soil, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the field of rock and soil survey, in particular to a rock and soil engineering survey sampling device. Background Art

[0002] Geotechnical engineering investigation refers to the activities of identifying, analyzing, and evaluating the geological, environmental characteristics and geotechnical conditions of the construction site and preparing investigation documents according to the requirements of the construction project.

[0003] Geotechnical engineering surveys require the use of geotechnical samplers. Small geotechnical samplers are easy to carry and suitable for a variety of sites. They mainly use gravity to knock the sampling tube into the ground, and then take out the soil in the sampling tube for testing and analysis.

[0004] The portable soil sampling machine pushes the weight up through the driving assembly, and then when the weight drops, it can knock the sampling tube into the ground. However, it is rather troublesome to remove the sampling tube from the soil because the resistance of the soil is relatively large. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a geotechnical engineering survey sampling device to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a geotechnical engineering survey sampling device, comprising a fixed plate, a fixed rod is arranged on the top of the fixed plate, and a movable plate is movably installed outside the fixed rod, and a sleeve is arranged on the top of the movable plate, a sampling tube is movably installed on the bottom of the movable plate, and a driving assembly is arranged on the top of the movable plate, and a connecting rod is connected to the output end of the driving assembly, a heavy hammer is movably installed outside the sleeve, and a metal rod is arranged on the side of the heavy hammer.

[0007] By adopting the above technical solution, through the casing, screw rod and internal threaded tube, when the internal threaded tube rotates, it will drive the screw rod to rise, and the protrusion at the end of the screw rod will be limited by the inner convex ring in the casing, and then the screw rod drives the casing to rise, and the rising casing will drive the sampling tube to rise, so that the sampling tube can be pulled out from the inside of the rock and soil, saving time and effort.

[0008] The utility model is further configured that the interior of the fixing plate is rotatably connected with an internal threaded tube, and the internal thread of the internal threaded tube is connected with a screw rod, and the screw rod extends into the interior of the sleeve.

[0009] By adopting the above technical solution, the internal threaded tube and the screw rod are arranged, and the screw rod can be pushed up by rotating the internal threaded tube.

[0010] The present utility model is further configured such that a limiting block is provided inside the sleeve, a convex block is provided at the bottom of the lead screw, and a limiting groove matching the limiting block is formed on the side surface of the convex block.

[0011] By adopting the above technical solution, by providing the limiting block and the limiting groove, the rotation of the lead screw can be restricted, so that when the internally threaded tube rotates, the lead screw can be driven to rise.

[0012] The present utility model is further configured such that an inner convex ring is provided inside the sleeve, and the inner convex ring can restrict the convex block.

[0013] By adopting the above technical solution, by providing the inner convex ring, when the lead screw rises, the sleeve can be driven to rise, serving the function of pulling out the sampling tube.

[0014] The present utility model is further configured such that a turning handle is rotatably connected to the side surface of the fixing plate, and the turning handle and the internally threaded tube are in transmission connection through a bevel gear set provided therebetween.

[0015] By adopting the above technical solution, by providing the turning handle and the bevel gear set, the turning handle can be rotated to drive the internally threaded tube to rotate.

[0016] The present utility model is further configured such that a threaded rod is provided at the bottom of the movable plate, and the threaded rod is in threaded connection with the sampling tube.

[0017] By adopting the above technical solution, by providing the threaded rod, the sampling tube can be movably installed.

[0018] The present utility model is further configured such that four groups of fixing rods are provided, and a base is provided at the bottom of the fixing rods.

[0019] By adopting the above technical solution, by providing four groups of fixing rods and the base, the stability of the device can be improved.

[0020] In summary, the present utility model mainly has the following beneficial effects:

[0021] With the sleeve, the lead screw and the internally threaded tube of the present utility model, when the internally threaded tube rotates, it will drive the lead screw to rise. The convex block at the end of the lead screw is limited by the inner convex ring inside the sleeve. Then, the lead screw drives the sleeve to rise, and the rising of the sleeve will drive the sampling tube to rise, enabling the sampling tube to be pulled out from the inside of the rock and soil, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the present utility model;

[0023] Figure 2 is a connection schematic diagram of the movable plate and the sleeve of the present utility model;

[0024] Figure 3Schematic structural diagram of the present utility model;

[0025] Figure 4 of the present utility model Figure 3 Enlarged view at position A;

[0026] Figure 5 Schematic connection diagram of the sleeve and the lead screw of the present utility model;

[0027] Figure 6 of the present utility model Figure 5 Enlarged view at position B;

[0028] Figure 7 of the present utility model Figure 5 Enlarged view at position C.

[0029] In the figure: 1, fixing plate; 2, fixing rod; 3, movable plate; 4, sleeve; 5, threaded rod; 6, sampling tube; 7, weight; 8, metal rod; 9, driving assembly; 10, connecting rod; 11, base; 12, internally threaded tube; 13, lead screw; 14, convex block; 15, limiting block; 16, limiting groove; 17, inner convex ring; 18, turning handle; 19, bevel gear set. Specific implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0031] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0032] A geotechnical engineering investigation sampling device, as Figures 1-7 shown, includes a fixing plate 1, a fixing rod 2 is arranged at the top of the fixing plate 1, a movable plate 3 is movably installed outside the fixing rod 2, a sleeve 4 is arranged at the top of the movable plate 3, a sampling tube 6 is movably installed at the bottom of the movable plate 3, a driving assembly 9 is arranged at the top of the movable plate 3, and the output end of the driving assembly 9 is connected to a connecting rod 10. A weight 7 is movably installed outside the sleeve 4, and a metal rod 8 is arranged on the side of the weight 7. Through the sleeve 4, the lead screw 13 and the internally threaded tube 12, when the internally threaded tube 12 rotates, it will drive the lead screw 13 to rise. The convex block 14 at the end of the lead screw 13 is limited by the inner convex ring 17 in the sleeve 4. Furthermore, the lead screw 13 drives the sleeve 4 to rise, and the rising of the sleeve 4 will drive the sampling tube 6 to rise, so that the sampling tube 6 can be pulled out from the inside of the rock and soil, saving time and effort.

[0033] Please refer to Figure 4The internal rotation of the fixed plate 1 is connected with an internal threaded tube 12, and the internal thread of the internal threaded tube 12 is connected with a screw rod 13, and the screw rod 13 extends into the interior of the sleeve 4. By setting the internal threaded tube 12 and the screw rod 13, the internal threaded tube 12 can be rotated to push the screw rod 13 to rise.

[0034] See also Figure 6 A limit block 15 is arranged inside the sleeve 4, a protrusion 14 is arranged at the bottom of the screw rod 13, and a limit groove 16 matching the limit block 15 is arranged on the side of the protrusion 14. By setting the limit block 15 and the limit groove 16, the rotation of the screw rod 13 can be limited, so that the screw rod 13 can be driven to rise when the internal threaded tube 12 rotates.

[0035] See also Figure 7 An inner convex ring 17 is provided inside the sleeve 4, and the inner convex ring 17 can limit the convex block 14. By providing the inner convex ring 17, the sleeve 4 can be driven to rise when the screw rod 13 rises, thereby playing the role of pulling out the sampling tube 6.

[0036] See also Figure 1 The side of the fixed plate 1 is rotatably connected with a turning handle 18, and the turning handle 18 and the internal threaded tube 12 are connected by a bevel gear set 19. By setting the turning handle 18 and the bevel gear set 19, the turning handle 18 can be rotated to drive the internal threaded tube 12 to rotate.

[0037] See also Figure 2 A threaded rod 5 is provided at the bottom of the movable plate 3, and the threaded rod 5 is threadedly connected to the sampling tube 6. By providing the threaded rod 5, the sampling tube 6 can be movably installed.

[0038] See also Figure 1 Four groups of fixing rods 2 are provided, and a base 11 is provided at the bottom of the fixing rod 2. By providing four groups of fixing rods 2 and the base 11, the stability of the equipment can be improved.

[0039] The working principle of the utility model is as follows: the equipment is placed on the ground, and the driving assembly 9 is started to drive the connecting rod 10 to rotate. The connecting rod 10 will push the metal rod 8 to rise, and then the metal rod 8 drives the heavy hammer 7 to rise. When the connecting rod 10 is separated from the metal rod 8, the heavy hammer 7 drops and hits the movable plate 3, so that the sampling tube 6 at the bottom of the movable plate 3 is inserted into the rock and soil. After multiple hits, when the sampling tube 6 is completely immersed in the rock and soil, the turning handle 18 is manually turned to drive the internal threaded tube 12 to rotate through the bevel gear set 19. The internal threaded tube 12 is threadedly connected with the screw rod 13. The convex block 14 at the bottom of the screw rod 13 is restricted by the limit block 15 and cannot rotate, so that the screw rod 13 can gradually rise. As the screw rod 13 rises, the convex block 14 pushes the inner convex ring 17 and then drives the sleeve 4 to rise, so that the movable plate 3 can rise, thereby driving the sampling tube 6 to be pulled out of the rock and soil, rotating the sampling tube 6, removing the sampling tube 6 from the threaded rod 5, and then taking out the rock and soil for analysis.

[0040] Although embodiments of the present utility model have been shown and described, the specific embodiments are merely explanations of the present utility model and not limitations thereof. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A geotechnical engineering survey sampling device, comprising a fixing plate (1), characterized in that: A fixing rod (2) is arranged on the top of the fixing plate (1), and a movable plate (3) is movably mounted outside the fixing rod (2), and a sleeve (4) is arranged on the top of the movable plate (3), a sampling tube (6) is movably mounted on the bottom of the movable plate (3), and a driving component (9) is arranged on the top of the movable plate (3), and a connecting rod (10) is connected to the output end of the driving component (9), a heavy hammer (7) is movably mounted outside the sleeve (4), and a metal rod (8) is arranged on the side of the heavy hammer (7).

2. A geotechnical engineering survey sampling device according to claim 1, characterized in that: The fixing plate (1) is rotatably connected to an internal threaded tube (12), and the internal threaded tube (12) is threadably connected to a screw rod (13), and the screw rod (13) extends into the interior of the sleeve (4).

3. A geotechnical engineering survey sampling device according to claim 2, characterized in that: A limit block (15) is arranged inside the sleeve (4), a convex block (14) is arranged at the bottom of the screw rod (13), and a limit groove (16) matching the limit block (15) is arranged on the side of the convex block (14).

4. A geotechnical engineering survey sampling device according to claim 3, characterized in that: An inner convex ring (17) is arranged inside the sleeve (4), and the inner convex ring (17) can limit the convex block (14).

5. A geotechnical engineering survey sampling device according to claim 1, characterized in that: The side surface of the fixed plate (1) is rotatably connected to a turning handle (18), and the turning handle (18) and the internally threaded tube (12) are transmission-connected via a bevel gear set (19).

6. A geotechnical engineering survey sampling device according to claim 1, characterized in that: A threaded rod (5) is provided at the bottom of the movable plate (3), and the threaded rod (5) is threadably connected to the sampling tube (6).

7. A geotechnical engineering survey sampling device according to claim 1, characterized in that: The fixing rods (2) are provided in four groups, and a base (11) is provided at the bottom of the fixing rods (2).

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