A soil compactness detection mechanism for pile foundation

Abstract

The utility model provides a kind of soil compactness detection mechanism for pile, it is related to soil compactness detection technical field, including drive hydraulic rod, detection cylinder, soil sampler and limit pin. Through the setting of soil sampler and limit pin, in the process of taking soil, soil sampler will have upward displacement change after being extruded by sampling soil, until limit pin is elastically clamped in through hole, the position of soil sampler is preliminarily fixed at this time, prepare for subsequent sampling soil to be taken out from inside detection cylinder, through the setting of threaded rod and elastic member, when sampling soil needs to be taken out from inside detection cylinder, only need to manually rotate knob, threaded rod is moved to the direction of through hole by knob, limit pin clamped in through hole will be extruded, while elastic member exerts its elastic force, and soil sampler is extruded downwards, so that sampling soil in inside detection cylinder is extruded, make the sampling soil taken out can maintain original structure, make detection result more accurate.

Description

Technical Field

[0001] This utility model relates to the field of soil compaction testing technology, and in particular to a soil compaction testing mechanism for pile foundations. Background Technology

[0002] Soil compaction testing for pile foundations typically refers to conducting compaction tests on the foundation soil to ensure that the soil meets the required compaction standards during pile foundation construction.

[0003] Existing methods for testing soil compaction in pile foundations typically employ a simple and rapid approach: soil samples are taken using a sampling cylinder, which is then poured out. The distribution of the soil during this process is observed to determine soil compaction. However, once the sampling cylinder is empty, subsequent testing requires shaking or applying external force to the cylinder. This can easily damage the extracted soil, disrupting its original structure and affecting the accuracy of the compaction test.

[0004] Therefore, we provide a soil compaction testing mechanism for pile foundations. Utility Model Content

[0005] The purpose of this invention is to provide a soil compaction testing mechanism for pile foundations, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a soil compaction testing mechanism for pile foundations, comprising a driving hydraulic rod, a testing cylinder, a soil sampling plate, and limiting pins. Handles are installed on both sides of the driving hydraulic rod, and a control box is fixedly installed on the upper surface of the driving hydraulic rod. The testing cylinder is fixedly installed at the telescopic end of the driving hydraulic rod. The soil sampling plate is slidably installed inside the testing cylinder. A central seat is welded to the upper surface of the soil sampling plate. The limiting pins are slidably installed on the upper surface of the soil sampling plate and located on both sides of the central seat. A movable seat is welded to one end of the limiting pin. Two sets of thin springs abut against the movable seat and the central seat. An elastic element that can reset the soil sampling plate is installed above the central seat.

[0007] Preferably, both ends of the drive hydraulic rod are bolted with fixing buckles, and connecting plates are welded to the inner sides of the two sets of fixing buckles. Multiple sets of fixing seats are welded at equal intervals to the outer sides of the connecting plates. A connector is welded to one end of the handle, and the connector is threaded into the inside of the fixing seat. A sponge sleeve is fixedly fitted to the outer side of the handle.

[0008] Preferably, both sides of the detection cylinder are provided with through holes, and the limiting pin is movably installed inside the through holes.

[0009] Preferably, a receiving cylinder is welded to the outer wall of the detection cylinder and outside the through hole. A threaded hole is opened through the inside of the receiving cylinder, and the through hole communicates with the threaded hole. A threaded rod is threadedly installed inside the threaded hole, and a knob is welded to one end of the threaded rod.

[0010] Preferably, pin seat one is welded to both sides of the center seat, pin seat two is welded to the side of the movable seat away from the limiting pin, one end of the thin spring is sleeved on the outside of pin seat one, and the other end of the thin spring is sleeved on the outside of pin seat two.

[0011] Preferably, guide rails are welded to both sides of the upper surface of the soil sampling plate, and pulleys are rotatably mounted on both sides of the movable seat via short shafts, with the pulleys slidably installed inside the guide rails.

[0012] Preferably, the elastic element includes a sleeve, which is fixedly installed inside the top of the detection cylinder. A slide rod is slidably installed inside the lower end of the sleeve. A base is welded to the lower end of the slide rod. A coarse spring is sleeved on the outer side of the slide rod, with the upper end of the coarse spring abutting against the lower surface of the sleeve and the lower end of the coarse spring abutting against the upper surface of the base.

[0013] Preferably, the upper surface of the center seat is provided with a connecting hole, and the lower surface of the base is welded with a connecting post, which is threaded into the connecting hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The soil compaction testing mechanism for this pile foundation uses a soil sampling plate and a limiting pin. During the soil sampling process, the soil sampling plate will undergo an upward displacement change after being subjected to the squeezing force from the sampled soil until the limiting pin is elastically engaged inside the through hole. At this time, the position of the soil sampling plate is initially fixed, which prepares for the subsequent removal of the sampled soil from the inside of the testing cylinder.

[0016] 2. By using the threaded rod and elastic element, when it is necessary to remove the sampled soil from inside the testing cylinder, simply rotate the knob manually. The knob will drive the threaded rod to move towards the through hole. As the threaded rod gradually moves inward, it will squeeze out the limiting pin that is stuck inside the through hole. At this time, the soil sampling plate will lose its position restriction. At the same time, the elastic element will exert its elastic force to squeeze the soil sampling plate downward, thereby squeezing out the sampled soil inside the testing cylinder. This allows the removed sampled soil to maintain its original structure, making the test results more accurate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of the soil compaction testing mechanism for pile foundations according to this utility model;

[0018] Figure 2This is a schematic diagram of the overall disassembled structure of the soil compaction testing mechanism for pile foundations according to this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the soil sampling plate and the limiting pin of this utility model.

[0020] Figure 4 This is a cross-sectional view of the detection cylinder of this utility model;

[0021] Figure 5 This is a schematic diagram of the elastic element structure of this utility model.

[0022] The following are the labeling elements in the diagram: 1. Drive hydraulic rod; 11. Fixing buckle; 12. Connecting plate; 13. Fixing seat; 2. Handle; 21. Connector; 22. Sponge sleeve; 3. Control box; 4. Detection cylinder; 41. Through hole; 42. Receiving cylinder; 43. Threaded hole; 44. Threaded rod; 45. Knob; 5. Soil sampling plate; 51. Center seat; 511. Pin seat one; 512. Connecting hole; 52. Guide rail; 6. Limit pin; 61. Movable seat; 611. Pin seat two; 62. Pulley; 63. Thin spring; 7. Elastic element; 71. Sleeve; 72. Slide rod; 73. Base; 731. Connecting column; 74. Coarse spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figure 1-5 As shown, this utility model provides an embodiment: a soil compaction testing mechanism for pile foundations, including a driving hydraulic rod 1, a testing cylinder 4, a soil sampling plate 5, and a limiting pin 6. Handles 2 are installed on both sides of the driving hydraulic rod 1. A control box 3 is fixedly installed on the upper surface of the driving hydraulic rod 1. The testing cylinder 4 is fixedly installed at the telescopic end of the driving hydraulic rod 1. The soil sampling plate 5 is slidably installed inside the testing cylinder 4. A central seat 51 is welded to the upper surface of the soil sampling plate 5. The limiting pin 6 is slidably installed on the upper surface of the soil sampling plate 5 and located on both sides of the central seat 51. A movable seat 61 is welded to one end of the limiting pin 6. Two sets of thin springs 63 abut against the movable seat 61 and the central seat 51. An elastic element 7 that can reset the soil sampling plate 5 is installed above the central seat 51. There is an electrical connection between the control box 3 and the driving hydraulic rod 1.

[0025] Furthermore, both ends of the drive hydraulic rod 1 are bolted with fixing buckles 11, and connecting plates 12 are welded to the inner sides of the two sets of fixing buckles 11. Multiple sets of fixing seats 13 are welded at equal intervals to the outer sides of the connecting plates 12. One end of the handle 2 is welded with a connector 21, which is threaded into the inside of the fixing seat 13. A sponge sleeve 22 is fixedly fitted on the outer side of the handle 2. Multiple sets of fixing seats 13 are installed, so that the operator can install the handle 2 at a suitable height according to their own situation, which enhances its applicability. The sponge sleeve 22 on the outer side of the handle 2 makes the operator more comfortable when holding the handle 2.

[0026] Furthermore, through holes 41 are provided on both sides of the detection cylinder 4, and limiting pins 6 are movably installed inside the through holes 41. After the detection cylinder 4 has taken soil, the two sets of limiting pins 6 on the upper surface of the soil sampling plate 5 will be elastically installed inside the through holes 41, thereby fixing the position of the soil sampling plate 5.

[0027] Furthermore, a receiving cylinder 42 is welded to the outer wall of the detection cylinder 4 and outside the through hole 41. A threaded hole 43 is opened through the inside of the receiving cylinder 42, and the through hole 41 and the threaded hole 43 are connected. A threaded rod 44 is installed inside the threaded hole 43, and a knob 45 is welded to one end of the threaded rod 44. When it is necessary to remove the soil inside the detection cylinder 4, we can use the elastic element 7 to apply downward squeezing force to the soil sampling plate 5 to remove the soil inside the detection cylinder 4. Before this, we need to release the position of the soil sampling plate 5. Specifically, we manually rotate the knob 45. The knob 45 drives the threaded rod 44 to rotate and enter inside the threaded hole 43. As the threaded rod 44 gradually enters, it can squeeze out the limiting pin 6 located inside the through hole 41. When the soil sampling plate 5 loses the limitation of the limiting pin 6, the elastic element 7 will push the soil sampling plate 5 out.

[0028] Furthermore, pin seat 1 511 is welded to both sides of the center seat 51, and pin seat 2 611 is welded to the side of the movable seat 61 away from the limiting pin 6. One end of the thin spring 63 is sleeved on the outside of pin seat 1 511, and the other end of the thin spring 63 is sleeved on the outside of pin seat 2 611. The two ends of the thin spring 63 are respectively restricted in position by pin seat 1 511 and pin seat 2 611 to prevent it from shifting when elastic deformation occurs.

[0029] Furthermore, guide rails 52 are welded to both sides of the upper surface of the soil sampling plate 5, and pulleys 62 are rotatably mounted on both sides of the movable seat 61 via short shafts, with the pulleys 62 slidably installed inside the guide rails 52. When the limiting pin 6 moves, it will drive the movable seat 61 to move. At this time, the pulleys 62 on both sides of the movable seat 61 continue to slide inside the guide rails 52. The guide rails 52 indirectly provide a sliding path for the movement of the limiting pin 6, so that it can only move along the path of the guide rails 52 when it moves, avoiding deviation. At the same time, the rotation of the pulleys 62 makes the movement of the movable seat 61 smoother.

[0030] Furthermore, the elastic element 7 includes a sleeve 71, which is fixedly installed at the top of the inside of the detection cylinder 4. A sliding rod 72 is slidably installed inside the lower end of the sleeve 71. A base 73 is welded to the lower end of the sliding rod 72. A coarse spring 74 is sleeved on the outside of the sliding rod 72. The upper end of the coarse spring 74 abuts against the lower surface of the sleeve 71, and the lower end of the coarse spring 74 abuts against the upper surface of the base 73. The base 73 and the sleeve 71 form an elastic structure through the coarse spring 74, which can provide sufficient elastic squeezing force for the soil sampling plate 5, thereby assisting in the extraction of soil from inside the detection cylinder 4.

[0031] Furthermore, a connecting hole 512 is provided on the upper surface of the center seat 51, and a connecting post 731 is welded to the lower surface of the base 73. The connecting post 731 is threaded into the interior of the connecting hole 512. The base 73 and the center seat 51 adopt a detachable structure to facilitate subsequent maintenance.

[0032] Working principle: First, the operator installs the handle 2 according to their own situation, selects a suitable fixing seat 13, and then manually screws the connector 21 at one end of the handle 2 into the fixing seat 13. Second, the operator aligns the detection cylinder 4 with the pile foundation surface to be tested, and controls the hydraulic rod 1 to operate through the control box 3. The telescopic end of the hydraulic rod 1 pushes the detection cylinder 4 towards the pile foundation surface. As the telescopic end of the hydraulic rod 1 extends, the pile foundation soil is squeezed into the detection cylinder 4. Third, while the pile foundation soil is squeezed into the detection cylinder 4, the soil sampling plate 5 moves upward under the pressure of the soil until it reaches the limit pin 6. Move the sample to the through hole 41. At this point, the thin spring 63 exerts its elastic force, pressing the limiting pin 6 into the through hole 41, thus fixing the position of the soil sampling plate 5. In the fourth step, after soil sampling, the sampled soil inside the testing cylinder 4 needs to be removed. Manually rotate the knob 45. The knob 45 drives the threaded rod 44 to move inside the threaded hole 43 until the end of the threaded rod 44 is screwed into the through hole 41, pushing the limiting pin 6 back into the through hole 41. At this point, the position of the soil sampling plate 5 is no longer fixed, the thick spring 74 returns to its original deformation, pressing down on the base 73. The base 73 indirectly presses down on the soil sampling plate 5, thereby squeezing out the soil from inside the testing cylinder 4. During the removal process, observe the soil dispersion to test the soil compaction. This completes the usage process of a soil compaction testing mechanism for pile foundations.

Claims

1. A soil compaction testing mechanism for pile foundations, comprising a driving hydraulic rod (1), a testing cylinder (4), a soil sampling plate (5), and a limiting pin (6), characterized in that: Handles (2) are installed on both sides of the driving hydraulic rod (1). A control box (3) is fixedly installed on the upper surface of the driving hydraulic rod (1). The detection cylinder (4) is fixedly installed on the telescopic end of the driving hydraulic rod (1). The soil sampling plate (5) is slidably installed inside the detection cylinder (4). A center seat (51) is welded to the upper surface of the soil sampling plate (5). The limiting pin (6) is slidably installed on the upper surface of the soil sampling plate (5) and located on both sides of the center seat (51). A movable seat (61) is welded to one end of the limiting pin (6). Two sets of thin springs (63) abut between the movable seat (61) and the center seat (51). An elastic element (7) that can reset the soil sampling plate (5) is installed above the center seat (51).

2. The soil compaction testing mechanism for pile foundations according to claim 1, characterized in that, The driving hydraulic rod (1) has fixing buckles (11) bolted to both ends on both sides. Connecting plates (12) are welded to the inner sides of the two sets of fixing buckles (11). Multiple sets of fixing seats (13) are welded to the outer sides of the connecting plates (12) at equal intervals. A connector (21) is welded to one end of the handle (2). The connector (21) is threaded into the inside of the fixing seat (13). A sponge sleeve (22) is fixedly fitted on the outer side of the handle (2).

3. The soil compaction testing mechanism for pile foundations according to claim 1, characterized in that, Both sides of the detection cylinder (4) are provided with through holes (41), and the limiting pin (6) is movably installed inside the through hole (41).

4. The soil compaction testing mechanism for pile foundations according to claim 3, characterized in that, A receiving cylinder (42) is welded to the outer wall of the detection cylinder (4) and outside the through hole (41). A threaded hole (43) is opened through the inside of the receiving cylinder (42), and the through hole (41) and the threaded hole (43) are connected. A threaded rod (44) is installed inside the threaded hole (43), and a knob (45) is welded to one end of the threaded rod (44).

5. The soil compaction testing mechanism for pile foundations according to claim 1, characterized in that, Pin seat 1 (511) is welded to both sides of the center seat (51), and pin seat 2 (611) is welded to the side of the movable seat (61) away from the limiting pin (6). One end of the thin spring (63) is sleeved on the outside of pin seat 1 (511), and the other end of the thin spring (63) is sleeved on the outside of pin seat 2 (611).

6. The soil compaction testing mechanism for pile foundations according to claim 1, characterized in that, The upper surface of the soil sampling plate (5) is welded with guide rails (52) on both sides. The movable seat (61) is equipped with pulleys (62) on both sides through short shafts, and the pulleys (62) are slidably installed inside the guide rails (52).

7. The soil compaction testing mechanism for pile foundations according to claim 1, characterized in that, The elastic element (7) includes a sleeve (71), which is fixedly installed inside the top of the detection cylinder (4). A slide rod (72) is slidably installed inside the lower end of the sleeve (71). A base (73) is welded to the lower end of the slide rod (72). A coarse spring (74) is sleeved on the outside of the slide rod (72), and the upper end of the coarse spring (74) abuts against the lower surface of the sleeve (71), while the lower end of the coarse spring (74) abuts against the upper surface of the base (73).

8. A soil compaction testing mechanism for pile foundations according to claim 7, characterized in that, The upper surface of the center seat (51) is provided with a connecting hole (512), and the lower surface of the base (73) is welded with a connecting post (731), which is threaded into the connecting hole (512).

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