Soil sampling device for detecting earthwork compactness

Abstract

The utility model discloses a soil sampling device for earthwork compactness detection, which comprises a mounting seat, a soil sampling device, a soil sampling device and a soil sampling device, and is characterized in that the mounting seat is provided with a mounting groove, a through mounting hole and connecting lugs; the supporting rods are hinged to the connecting lugs through connecting parts; the connecting disc is arranged in the mounting groove and is provided with a driving part penetrating through the mounting hole; the telescopic mechanism is arranged on the lower surface of the connecting disc and comprises a connecting cover with a first mounting cavity; the first moving cover is in sliding fit in the connecting cover; the second moving cover is in sliding fit in the first moving cover; the driving motor is located in the first mounting cavity and provided with a first rotating bolt matched with the first moving cover and a second rotating bolt located at the end of the first rotating bolt, and the second rotating bolt is in threaded fit with the second moving cover; the cutting ring is detachably arranged at the end part of the second moving cover, and the cutting ring is driven to move downwards into the soil for sampling in a rotary downward moving manner, so that the labor is saved, and the convenience is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental engineering, in particular to a soil sampling device for detecting the compaction degree of earthwork. Background Art

[0002] The soil sampler is used to lift the original soil of the lower test soil as a sample to understand its properties. In order to better understand the properties of the base layer, and in engineering geological exploration and investigation work, in order to obtain the physical and mechanical properties of the foundation soil, it is sometimes necessary to take the original soil at a deeper depth. This soil sampling equipment is called a soil sampler.

[0003] Generally, soil compaction testing requires manual sampling by hammering the ring knife handle, which cannot achieve mechanized soil collection. It is time-consuming and labor-intensive, increases the labor intensity of the staff, has low sampling efficiency, and there are certain safety hazards in the knocking process, which can easily cause accidental injuries to the hands. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a soil sampling device for detecting soil compaction, which drives the ring knife to move down into the soil for sampling by rotating downward, which is labor-saving and convenient.

[0005] The utility model adopts the following technical solutions:

[0006] A soil-taking device for detecting the compaction degree of earthwork comprises: a mounting seat having a mounting groove, a through mounting hole and a connecting ear; a plurality of support rods hinged to the connecting ear through a connecting portion; a connecting plate arranged in the mounting groove and having a driving portion passing through the mounting hole; a telescopic mechanism arranged on the lower surface of the connecting plate, comprising: a connecting cover having a first mounting cavity; a first movable cover slidingly fitted in the connecting cover; a second movable cover slidingly fitted in the first movable cover; a driving motor located in the first mounting cavity, having a first rotating bolt matching the first movable cover and a second rotating bolt located at an end of the first rotating bolt, the second rotating bolt being threadably fitted with the second movable cover; and a ring cutter detachably arranged at the end of the second movable cover.

[0007] Preferably, the wall surface of the first installation cavity has a first guide groove, and the outer surface of the first movable cover has a first guide protrusion matching the first guide groove.

[0008] Preferably, a first threaded hole is provided on the first movable cover, and the first threaded hole cooperates with the first rotating bolt to form a first screw pair.

[0009] Preferably, the wall surface of the first movable cover has a second guide groove, and the outer surface of the second movable cover has a second guide protrusion matching the second guide groove.

[0010] Preferably, a second threaded hole is provided on the second movable cover, and the second rotating bolt cooperates with the second threaded hole to form a second screw pair.

[0011] Preferably, the ring cutter includes a connecting rod and a ring cutter body arranged at the end of the connecting rod.

[0012] Preferably, the connection cover is eccentrically arranged on the lower surface of the connection plate.

[0013] Preferably, a plurality of annular guide grooves and annular limit grooves are provided at the lower end of the connecting plate, and a sliding rod matching the annular guide grooves and the annular limit grooves is provided at the upper end of the connecting cover.

[0014] Preferably, transition grooves are provided between adjacent annular guide grooves and adjacent annular limiting grooves, and the center positions of the annular guide grooves and the annular limiting grooves have a center position connected to the transition grooves.

[0015] Preferably, the support rod includes a first support rod and a second support rod hinged to the first support rod, the first support rod is provided with a connecting portion, and one end of the second support rod is provided with a fixing portion; the side of the second support rod has a pressing portion.

[0016] Compared with the existing technology, the utility model has the following advantages: the utility model provides a soil sampling device for detecting soil compaction, including a mounting seat, a support rod, a connecting plate, a telescopic mechanism, a drive motor and a ring knife, which is fixed to the soil by four support rods, and the telescopic mechanism is driven by the drive motor to extend, causing the ring knife to rotate and move down into the soil for sampling, which is labor-saving and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the soil excavation device.

[0018] Figure 2 This is a schematic structural diagram of the soil-taking device from another perspective.

[0019] Figure 3 Schematic diagram of the structure of the mounting base.

[0020] Figure 4 It is a cross-sectional view of the telescopic mechanism and the ring knife.

[0021] Figure 5 It is a cross-sectional view of the telescopic mechanism.

[0022] Figure 6 Schematic diagram of the structure of the connection cover.

[0023] Figure 7 It is a structural schematic diagram of the first movable cover.

[0024] Figure 8 It is a structural schematic diagram of the second movable cover.

[0025] Figure 9 This is a schematic structural diagram of the soil-excavating device of Example 2.

[0026] Figure 10 This is a schematic structural diagram of the soil-excavating device of Example 3.

[0027] Figure 11 This is a schematic diagram of the connection cover structure of Example 3.

[0028] Figure 12 It is a structural diagram of the connecting disk.

[0029] Figure 13 Schematic diagram of the cross-sectional structure of the connecting disk.

[0030] Figure 14 Schematic diagram of another cross-sectional structure of the connecting disk.

[0031] In the figure, mounting seat 1, mounting groove 1-1, mounting hole 1-2, connecting ear 1-3, support rod 2, connecting part 2-1, first support rod 2-2, second support rod 2-3, fixing part 2-4, pressing part 2-5, connecting plate 3, driving part 3-1, annular guide groove 3-2, annular limit groove 3-3, transition groove 3-4, center position 3-5, telescopic mechanism 4, connecting cover 4-1, first mounting cavity 4-1-1, first guide groove 4-1-2, sliding rod 4-1-3, first movable cover 4-2, first guide protrusion 4-2-1, first threaded hole 4-2-2, second guide groove 4-2-3, second movable cover 4-3, second guide protrusion 4-3-1, second threaded hole 4-3-2, driving motor 5, first rotating bolt 5-1, second rotating bolt 5-2, ring knife 6, connecting rod 6-1, ring knife body 6-2. DETAILED DESCRIPTION

[0032] In order to facilitate understanding of the technical solution of the present utility model, the following is a detailed description with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] like Figure 1-8 As shown, a soil sampling device for detecting soil compaction comprises a mounting base 1, a support rod 2, a connecting plate 3, a telescopic mechanism 4, a driving motor 5 and a ring cutter 6;

[0035] like Figure 3 As shown, the mounting base 1 is a rectangular structure, with a mounting groove 1-1 on the lower surface, a through mounting hole 1-2 in the middle of the mounting groove 1-1, and connecting ears 1-3 on the four sides;

[0036] The four support rods 2 are hinged to the connecting ears 1-3 through the connecting parts 2-1, and can be opened or closed relative to the mounting base 1 to change the position of the support rods 2 fixed to the soil;

[0037] The connecting disk 3 is a disk-shaped structure, arranged in the mounting groove 1-1, and has a driving portion 3-1 passing through the mounting hole 1-2;

[0038] like Figure 4-5 As shown, the telescopic mechanism 4 is provided on the lower surface of the connecting plate 3, and includes a connecting cover 4-1, a first movable cover 4-2 and a second movable cover 4-3;

[0039] like Figure 6 As shown, the connecting cover 4-1 body is approximately cylindrical in structure, having a first installation cavity 4-1-1, and the wall surface of the first installation cavity 4-1-1 has a first guide groove 4-1-2;

[0040] like Figure 7 As shown, the first movable cover 4-2 is slidably fitted in the connecting cover 4-1, and the outer surface has a first guide protrusion 4-2-1 that matches the first guide groove 4-1-2, a first threaded hole 4-2-2 is provided on the side facing the connecting cover 4-1, and the wall surface of the first movable cover 4-2 has a second guide groove 4-2-3;

[0041] like Figure 8 As shown, the second movable cover 4-3 is slidably fitted in the first movable cover 4-2, and the outer surface has a second guide protrusion 4-3-1 matching the second guide groove 4-2-3, and the side facing the first movable cover 4-2 has a second threaded hole 4-3-2;

[0042] The driving motor 5 is located in the first mounting cavity 4-1-1 and has a first rotating bolt 5-1 and a second rotating bolt 5-2; the first rotating bolt 5-1 cooperates with the first movable cover 4-2 to form a first spiral pair, and the first rotating bolt 5-1 is located at the driving end of the driving motor 5. Rotation of the first rotating bolt 5-1 can drive the first movable cover 4-2 to move; the second rotating bolt 5-2 is located at the end of the first rotating bolt 5-1, and the second rotating bolt 5-2 is fixedly connected to the first rotating bolt 5-1, that is, rotation of the first rotating bolt 5-1 can rotate the second rotating bolt 5-2, and the second rotating bolt 5-2 cooperates with the second threaded hole 4-3-2 to form a second spiral pair, and rotation of the second rotating bolt 5-2 can drive the second movable cover 4-3 to move;

[0043] The ring cutter 6 is detachably arranged at the end of the second movable cover 4-3, and includes a connecting rod 6-1 and a ring cutter body 6-2 arranged at the end of the connecting rod 6-1.

[0044] When in use, first open the four support rods 2 to a certain angle and fix them on the soil, then drive the motor 5 to drive the first rotating bolt 5-1 to rotate, the rotation of the first rotating bolt 5-1 can drive the first movable cover 4-2 to move outward in the connecting cover 4-1, the rotation of the first rotating bolt 5-1 can also drive the second rotating bolt 5-2 to rotate, the rotation of the second rotating bolt 5-2 can drive the second movable cover 4-3 to move outward in the first movable cover 4-2, the outward movement of the second movable cover 4-3 drives the ring knife 6 to move downward and enter the soil to obtain the soil, and then the drive motor 5 is rotated in the opposite direction to make the ring knife 6 move upward to bring out the soil.

[0045] In this embodiment, a first threaded portion is provided on the first movable cover 4-2, the middle part of the first threaded portion is a first threaded hole 4-2-2, one end of the second rotating bolt 5-2 is recessed inward to form a receiving groove, one end of the second rotating bolt 5-2 is sleeved outside the first threaded portion, and a limiting ring is provided between the second rotating bolt 5-2 and the first threaded portion to prevent the second rotating bolt 5-2 from falling off from the first threaded portion. The second rotating bolt 5-2 can rotate relative to the first threaded portion.

[0046] The ring cutter body 6-2 can be disassembled from the connecting rod 6-1, for example, the ring cutter body 6-2 and the connecting rod 6-1 are threaded or clamped. After the ring cutter body 6-2 takes out the soil, the ring cutter body 6-2 is disassembled from the connecting rod 6-1, and the soil is taken out from the ring cutter body 6-2 for inspection.

[0047] Example 2

[0048] like Figure 9 As shown, the difference between Example 2 and Example 1 is that the connecting cover 4-1 is eccentrically arranged on the lower surface of the connecting disk 3, that is, the connecting cover 4-1 is not arranged at the center position of the lower surface of the connecting disk 3, and the connecting disk 3 is rotatably engaged with the mounting base 1. During use, the four support rods 2 are first opened to a certain angle and fixed to the soil, and the driving part 3-1 is manually rotated to rotate the connecting disk 3, thereby adjusting the specific cutting position of the ring cutter body 6-2. This embodiment can select the cutting position within the rotation range of the ring cutter body 6-2, and the rotation range is annular.

[0049] Example 3

[0050] like Figure 10-14As shown, the difference between Example 3 and Example 1 is that the lower end of the connecting plate 3 is provided with a plurality of annular guide grooves 3-2 and annular limit grooves 3-3, and the upper end of the connecting cover 4-1 is provided with a sliding rod 4-1-3 matching the annular guide groove 3-2 and the annular limit groove 3-3, the width of the annular guide groove 3-2 is greater than the width of the annular limit groove 3-3, and the sliding rod 4-1-3 has corresponding thick and thin parts, the thick part slides in the annular guide groove 3-2, and the thin part slides in the annular limit groove 3-3, and the cross-section of the sliding rod 4-1-3 is approximately a T-shaped structure.

[0051] There are transition grooves 3-4 between adjacent annular guide grooves 3-2 and adjacent annular limiting grooves 3-3. The center positions of the annular guide grooves 3-2 and the annular limiting grooves 3-3 have a center position 3-5 connected to the transition grooves 3-4.

[0052] In the initial state, the slide bar 4-1-3 is located at the center position 3-5. When the lower cutting position of the ring knife body 6-2 needs to be adjusted, the slide bar 4-1-3 can be moved into the transition groove 3-4, and then moved into the corresponding annular guide groove 3-2, and then the drive motor 5 is started.

[0053] Example 4

[0054] The difference between Example 4 and Example 1 is that the support rod 2 includes a first support rod 2-2 and a second support rod 2-3 hinged to the first support rod 2-2, the first support rod 2-2 is provided with a connecting part 2-1, and the second support rod 2-3 is provided with a fixing part 2-4 at one end; the second support rod 2-3 has a pressing part 2-5 on the side, and when in use, pressing downward or knocking the pressing part 2-5 can conveniently and effectively insert the fixing part 2-4 into the soil, and the fixing part 2-4 is preferably an inverted conical structure.

[0055] The above are only preferred embodiments of the present invention. The scope of protection of the present invention shall be based on the scope defined by the claims. Several improvements and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall also be regarded as the scope of protection of the present invention.

Claims

1. A soil sampling device for detecting soil compaction, characterized in that: include: A mounting seat (1) having a mounting groove (1-1), a through mounting hole (1-2) and a connecting ear (1-3); A plurality of support rods (2) are hingedly connected to the connecting ears (1-3) via connecting parts (2-1); A connecting plate (3) is arranged in the mounting groove (1-1) and has a driving portion (3-1) passing through the mounting hole (1-2); The telescopic mechanism (4) is arranged on the lower surface of the connecting plate (3) and comprises: The connecting cover (4-1) has a first installation cavity (4-1-1); The first movable cover (4-2) is slidably fitted in the connecting cover (4-1); The second movable cover (4-3) is slidably fitted in the first movable cover (4-2); A drive motor (5) is located in the first installation cavity (4-1-1), and comprises a first rotating bolt (5-1) matched with the first movable cover (4-2) and a second rotating bolt (5-2) located at the end of the first rotating bolt (5-1), wherein the second rotating bolt (5-2) is threadedly engaged with the second movable cover (4-3); The ring knife (6) is detachably arranged at the end of the second movable cover (4-3).

2. The soil sampling device for detecting soil compaction according to claim 1, characterized in that: The wall surface of the first installation cavity (4-1-1) has a first guide groove (4-1-2), and the outer surface of the first movable cover (4-2) has a first guide protrusion (4-2-1) matching the first guide groove (4-1-2).

3. The soil sampling device for detecting soil compaction according to claim 1, characterized in that: A first threaded hole (4-2-2) is provided on the first movable cover (4-2), and the first threaded hole (4-2-2) cooperates with the first rotating bolt (5-1) to form a first spiral pair.

4. The soil sampling device for detecting soil compaction according to claim 1, characterized in that: The wall surface of the first movable cover (4-2) is provided with a second guide groove (4-2-3), and the outer surface of the second movable cover (4-3) is provided with a second guide protrusion (4-3-1) matching the second guide groove (4-2-3).

5. The soil sampling device for detecting soil compaction according to claim 1, characterized in that: A second threaded hole (4-3-2) is provided on the second movable cover (4-3), and a second rotating bolt (5-2) cooperates with the second threaded hole (4-3-2) to form a second spiral pair.

6. The soil sampling device for detecting soil compaction according to claim 1, characterized in that: The ring cutter (6) comprises a connecting rod (6-1) and a ring cutter body (6-2) arranged at the end of the connecting rod (6-1).

7. The soil sampling device for detecting soil compaction according to claim 1, characterized in that: The connection cover (4-1) is eccentrically arranged on the lower surface of the connection disk (3).

8. The soil sampling device for detecting soil compaction according to claim 1, characterized in that: The lower end of the connecting plate (3) is provided with a plurality of annular guide grooves (3-2) and annular limiting grooves (3-3), and the upper end of the connecting cover (4-1) is provided with a sliding rod (4-1-3) matching the annular guide grooves (3-2) and the annular limiting grooves (3-3).

9. The soil sampling device for detecting soil compaction according to claim 8, characterized in that: A transition groove (3-4) is provided between adjacent annular guide grooves (3-2) and adjacent annular limiting grooves (3-3); the center positions of the annular guide grooves (3-2) and the annular limiting grooves (3-3) have a central position (3-5) connected to the transition groove (3-4).

10. The soil sampling device for detecting soil compaction according to claim 1, characterized in that: The support rod (2) comprises a first support rod (2-2) and a second support rod (2-3) hinged to the first support rod (2-2); a connecting portion (2-1) is provided on the first support rod (2-2); a fixing portion (2-4) is provided at one end of the second support rod (2-3); and a pressing portion (2-5) is provided on the side surface of the second support rod (2-3).

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