Soil sampling device for earthwork compaction degree detection
By designing a soil sampling device with a support cylinder and a limiting mechanism, the problem of soil compression during the soil sampling process by the ring cutter was solved, and the accuracy of compaction degree detection was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, the ring cutter tends to compress the soil during the soil extraction process, which leads to a decrease in the accuracy of compaction degree detection.
A soil sampling device was designed, comprising a support, a sliding guide mechanism, a limiting mechanism, and a support cylinder. The support cylinder provides space and the limiting mechanism prevents the ring cutter from being inserted further, thus avoiding soil compression and ensuring detection accuracy.
This effectively avoids soil compression during the soil extraction process, improving the accuracy and precision of compaction testing.
Smart Images
Figure CN224095415U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the compaction degree detection technical field, specifically related to a kind of soil device for earthwork compaction degree detection. BACKGROUND
[0002] Compaction degree is also called ramming degree, which refers to the ratio of dry density of soil or other road-building materials after compaction to standard maximum dry density, expressed in percentage. After earthwork approach compaction construction, the dry density of compacted earthwork is generally determined by ring cutter sampling with a volume of 200-500cm 3 .
[0003] First, wipe the ring cutter, take the ring cutter mass m1, place the ring cutter on the shovel flat and clean ground at the experimental site, cover the ring cover, hit the handle into the compacted layer, until the ring cutter top surface is flush with the ground, take out the ring cutter and sample, use the soil knife to cut off the excess soil at both ends of the ring cutter from the edge to the middle, take the total mass m2 of the ring cutter and sample, subtract m1 from m2 to obtain the mass of the soil sample, and then divide by the volume of the ring cutter to obtain the wet density of the compacted layer. The above-mentioned ring cutter sampling method, in the process of hitting the handle into the compacted layer, is easy to cause the depth to be too deep and further extrude the soil body, so that the soil density inside the ring cutter is slightly higher than the actual value, thereby affecting the detection accuracy of subsequent compaction degree.
[0004] Therefore, it is necessary to design a soil device for earthwork compaction degree detection that can avoid extruding soil body during soil sampling and ensure detection accuracy to solve the technical problems faced at present. SUMMARY
[0005] In view of the deficiencies in the prior art, the utility model provides a soil device for earthwork compaction degree detection that can avoid extruding soil body during soil sampling and ensure detection accuracy.
[0006] The technical scheme of the utility model is as follows: a soil device for earthwork compaction degree detection, comprising a support, a sliding guide mechanism is slidably arranged on the support, a limiting mechanism is fixedly arranged at the bottom end of the sliding guide mechanism, a supporting cylinder is fixedly arranged in the center of the limiting mechanism, a ring cutter is detachably fixedly arranged at the bottom end of the supporting cylinder, a hammer table is fixedly arranged at the top end of the sliding guide mechanism, and a hitting hammer corresponding to the hammer table is slidably arranged above the hammer table; the limiting mechanism has a horizontal plate fixedly arranged at the bottom end of the sliding guide mechanism, the bottom of the horizontal plate is symmetrically provided with a baffle, and the bottom of the baffle corresponds to the middle part of the supporting cylinder.
[0007] Further, the sliding guide mechanism has a center guide rod and a side guide rod vertically slidingly arranged on the support frame, top ends of the center guide rod and the side guide rod are fixedly provided with an upper support plate, the hammer table is fixedly arranged at the top of the upper support plate, and the horizontal plate is arranged at bottom ends of the center guide rod and the side guide rod.
[0008] Further, the bottom end of the ring cutter is provided with a cutting edge, and the top end of the ring cutter is provided with an external threaded connection end for detachable threaded connection with the bottom end of the support cylinder.
[0009] Further, the support frame is provided with a locking mechanism for locking or releasing the support frame and the limiting mechanism; the locking mechanism has a hand screw bolt rotationally arranged at the top of the support frame, and the horizontal plate is fixedly provided with a locking screw pipe matched with the hand screw bolt.
[0010] Further, the hammer table is vertically and fixedly provided with a sliding rod, and the hitting hammer is slidingly arranged outside the sliding rod.
[0011] Further, the upper end of the sliding rod is provided with a handle, and the bottom end of the handle is detachably and fixedly connected with the top end of the sliding rod.
[0012] Further, the support frame has a door-shaped frame, bottom ends of two ends of the door-shaped frame are fixedly provided with bottom plates, and the bottom plates are provided with reinforcing plates between the bottom plates and the door-shaped frame.
[0013] Further, the bottom of the bottom plate is fixedly provided with an anchor.
[0014] Further, the outer side wall of the support cylinder is circumferentially provided with observation holes.
[0015] Further, the outer side of the hitting hammer is provided with an anti-skid convex ring which is an integral structure with the hitting hammer.
[0016] The utility model discloses the beneficial effect of:
[0017] (1) the support frame is arranged on the ground which is spaded and cleaned at the experimental site, the ring cutter is hit into the compacted layer by hitting the hammer table with the hitting hammer, the support cylinder can reserve a space at the upper end of the ring cutter, when the depth of the ring cutter inserted into the ground slightly exceeds the axial length of the ring cutter, the reserved space in the support cylinder can avoid extruding the soil in the process of taking the soil, and the accuracy of detection is guaranteed.
[0018] (2) because the space in the support cylinder is limited, when the ring cutter is inserted into the ground too deep, the soil in the ring cutter is still extruded, when the top of the ground contacts the baffle during the insertion of the ring cutter, the baffle blocks the ring cutter from being further inserted, so that the soil is prevented from being compressed. DRAWINGS
[0019] Figure 1 This is one of the structural schematic diagrams of the soil sampling device used for soil compaction testing in this utility model.
[0020] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.
[0021] Figure 3 This is the second schematic diagram of the soil sampling device used for soil compaction testing in this utility model.
[0022] Figure 4 for Figure 3 Cross-sectional view at point BB.
[0023] Figure 5 for Figure 4 A magnified view of a section at point C. Detailed Implementation
[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values set forth in these embodiments should be interpreted as merely exemplary and not as limiting.
[0025] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0026] like Figures 1 to 5As shown, the soil sampling device for soil compaction detection comprises a support 1, a sliding guide mechanism 5 is arranged on the support 1 in a sliding mode, a limiting mechanism 4 is fixedly arranged at the bottom end of the sliding guide mechanism 5, a supporting cylinder 3 is fixedly arranged on the limiting mechanism 4 in the middle, a ring cutter 2 is detachably fixedly arranged at the bottom end of the supporting cylinder 3, a hammer table 6 is fixedly arranged at the top end of the sliding guide mechanism 5, and a hitting hammer 7 corresponding to the hammer table 6 is arranged on the hammer table 6 in a sliding mode; the limiting mechanism 4 has a horizontal plate 41 fixedly arranged at the bottom end of the sliding guide mechanism 5, the bottom of the horizontal plate 41 is symmetrically provided with a baffle 42, and the bottom of the baffle 42 corresponds to the middle part of the supporting cylinder 3; in this embodiment, the support 1 is placed on the ground which is leveled and cleaned at the experimental site, the ring cutter 2 is hit into the compacted layer by hitting the hammer table 6 with the hitting hammer 7, and the supporting cylinder 3 can reserve a certain space at the upper end of the ring cutter 2; when the insertion depth of the ring cutter 2 in the ground is slightly greater than the axial length of the ring cutter 2, the reserved space in the supporting cylinder 3 can avoid extruding the soil body during the soil sampling process, so as to ensure the accuracy of the detection; since the space in the supporting cylinder 3 is limited, when the ring cutter 2 is inserted into the ground too deeply, the soil body in the ring cutter 2 is still extruded, and the baffle 42 in the limiting mechanism 4 blocks the further insertion of the ring cutter 2 when the top of the ground contacts the baffle 42 during the insertion of the ring cutter 2, so that the soil body is prevented from being compressed.
[0027] In some embodiments, the sliding guide mechanism 5 has a central guide rod 51 and a side guide rod 52 which are vertically arranged on the support 1 in a sliding mode, the top end of the central guide rod 51 and the side guide rod 52 is fixedly provided with an upper support plate 53, the hammer table 6 is fixedly arranged on the top of the upper support plate 53 in the middle, and the horizontal plate 41 is arranged at the bottom end of the central guide rod 51 and the side guide rod 52; the central guide rod 51 and the side guide rod 52 are vertically and slidably connected with the support 1, so as to ensure the stability of the up-down movement of the ring cutter 2.
[0028] In some embodiments, the bottom end of the ring cutter 2 has a blade 21, and the top end of the ring cutter 21 is provided with an external thread connection end which is detachably screwed with the bottom end of the supporting cylinder 3; after the soil sampling is completed, the ring cutter 2 can be detached from the supporting cylinder 3, so as to facilitate the subsequent detection.
[0029] In some embodiments, the support 1 is provided with a locking mechanism 9 for locking or releasing the support 1 and the limiting mechanism 4; during the detection, the locking mechanism 9 releases the limiting mechanism 4 and the support 1, and during the transportation and movement, the locking mechanism 9 can lock the limiting mechanism 4 and the support 1, so as to avoid the sliding guide mechanism 5 from sliding on the support 1 and damaging the blade 21;
[0030] The locking mechanism 9 has a hand screw bolt 91 arranged on the top of the support 1, and a locking screw pipe 92 is fixedly arranged on the horizontal plate 41 and matched with the hand screw bolt 91; the lower end of the hand screw bolt 91 is assembled into the locking screw pipe 92, so that the limiting mechanism 4 and the support 1 can be locked; the lower end of the hand screw bolt 91 is disassembled from the inside of the locking screw pipe 92, so that the limiting mechanism 4 and the support 1 can be released.
[0031] In some embodiments, a slide rod 8 is vertically and fixedly arranged on the hammer platform 6, and the hitting hammer 7 is slidably arranged outside the slide rod 8; the hitting hammer 7 slides along the slide rod 8, and the ring cutter 2 can be inserted into the ground by the hitting hammer 7.
[0032] In some embodiments, the upper end of the slide rod 8 is provided with a handle 81, and the device can be moved through the handle 81; the bottom end of the handle 81 is detachably and fixedly connected with the top end of the slide rod 8, and the handle 81 can be disassembled for maintenance or replacement of the hitting hammer 7; specifically, the bottom end of the handle 81 is detachably and fixedly connected with the top end of the slide rod 8 through a threaded structure, and the bottom end of the handle 81 is provided with an internal thread structure, and the top end of the slide rod 8 is provided with an external thread matched with the internal thread.
[0033] In some embodiments, the support 1 has a door-shaped frame 11, and the bottom ends of the two ends of the door-shaped frame 11 are fixedly provided with bottom plates 12; the bottom plates 12 and the door-shaped frame 11 are provided with reinforcing plates 13, and the reinforcing plates 13 improve the connection strength between the bottom plates 12 and the door-shaped frame 11.
[0034] In some embodiments, the bottom of the bottom plate 12 is fixedly provided with anchor nails 14, and the bottom plate 12 is anchored to the ground through the anchor nails 14, so that the device is not easy to move and the stability of the support is improved.
[0035] In some embodiments, the outer side wall of the support cylinder 3 is provided with observation holes 31 in a circumferential array, and the position of the soil sample in the support cylinder 3 can be observed through the observation holes 31.
[0036] In some embodiments, the outer side of the hitting hammer 7 is provided with an anti-skid convex ring 71 which is an integral structure with the hitting hammer 7.
[0037] So far, the embodiments of the utility model have been described in detail. In order to avoid obscuring the concept of the utility model, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.
[0038] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A soil sampling device for detecting the compaction degree of earthwork, characterized in that: The device includes a bracket, on which a sliding guide mechanism is slidably mounted. A limit mechanism is fixedly mounted at the bottom end of the sliding guide mechanism. A support cylinder is fixedly mounted in the center of the limit mechanism. A ring cutter is detachably fixedly mounted at the bottom end of the support cylinder. A hammer platform is fixedly mounted at the top end of the sliding guide mechanism. A corresponding striking hammer is slidably mounted above the hammer platform. The limiting mechanism has a horizontal plate fixedly installed at the bottom of the sliding guide mechanism. A baffle is symmetrically arranged at the bottom of the horizontal plate, and the bottom of the baffle corresponds to the middle of the support cylinder.
2. The soil sampling device for detecting earthwork compaction degree according to claim 1, characterized in that: The sliding guide mechanism has a central guide rod and a side guide rod that are vertically slidably mounted on the bracket. An upper support plate is fixedly mounted on the top of the central guide rod and the side guide rod. The hammer platform is centrally fixedly mounted on the top of the upper support plate. The horizontal plate is mounted on the bottom of the central guide rod and the side guide rod.
3. The soil sampling device for detecting earthwork compaction degree according to claim 1, characterized in that: The bottom end of the ring cutter has a cutting edge, and the top end of the ring cutter is provided with an external threaded connection end for detachable threaded connection with the bottom end of the support cylinder.
4. The soil sampling device for detecting earthwork compaction degree according to claim 1, characterized in that: The bracket is provided with a locking mechanism for locking or releasing it from the limiting mechanism; The locking mechanism has a hand-tightening bolt rotatably mounted on the top of the bracket, and a locking screw tube matching the hand-tightening bolt is fixedly mounted on the cross plate.
5. The soil sampling device for detecting earthwork compaction degree according to claim 1, characterized in that: A sliding rod is vertically fixed on the hammer platform, and the striking hammer is slidably disposed on the outside of the sliding rod.
6. The soil sampling device for detecting earthwork compaction degree according to claim 5, characterized in that: The upper end of the slide bar is provided with a handle, and the bottom end of the handle is detachably and fixedly connected to the top end of the slide bar.
7. The soil sampling device for detecting earthwork compaction degree according to claim 1, characterized in that: The bracket has a portal frame, and base plates are fixedly installed at the bottom of both ends of the portal frame. A reinforcing plate is provided between the base plate and the portal frame.
8. The soil sampling device for detecting earthwork compaction degree according to claim 7, characterized in that: Anchor nails are fixedly installed at the bottom of the base plate.
9. The soil sampling device for detecting earthwork compaction degree according to claim 1, characterized in that: The outer wall of the support cylinder has observation holes arranged in a circular array.
10. The soil sampling device for detecting earthwork compaction degree according to claim 1, characterized in that: The outer side of the striking hammer is provided with an anti-slip protrusion ring that is integral with it.