A foldable automatic penetration and retrieval static cone penetration test rod and its usage method

Abstract

This invention discloses a foldable, automatically driven, and retrieved static cone penetrometer rod and its usage method. The rod includes a penetrometer probe that passes through a folding correction device and a drive wheel assembly from top to bottom. A folding extension rod is connected to the tail end of the probe extending beyond the correction device. The extension rod comprises several rods connected to adjacent rods via connectors, forming a fold at the connectors. The correction device includes an electric slide rail with two sets of electrically telescopic rods slidably connected to it, located on either side of the probe. This invention achieves automatic driving and retrieval of the static cone penetrometer rod, avoiding the problem of manual rod replacement disrupting the continuity of the penetration test; it enables detachable, integrated transport of the extension rod and the probe, avoiding excessively long extension rods; and it simplifies the extension process by connecting the extension rods with a hinged connector and a strong magnet.

Description

Technical Field

[0001] This invention relates to a static cone penetration test rod and its method of use, and more particularly to a foldable automatic penetration and retrieval static cone penetration test rod and its method of use. Background Technology

[0002] Traditional static cone penetration tests (CPPTs) typically use a combination of a static cone probe and a manually extended rod. However, manually extended rods present significant disadvantages in terms of continuity during static cone penetration testing. Furthermore, to reduce the frequency of manual extension of the CPPT probe and the number of joints, the extended probe often needs to be quite long, which places higher demands on its transportation.

[0003] The static cone penetration test probe has been disclosed in patent application documents such as Patent No. 202221548953.8, but the current static cone penetration test probe mainly focuses on fixing the probe connection point, and has not solved the problem of manual extension. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a foldable automatic penetration and retrieval static cone penetration test rod and a method for using it, so as to realize continuous automated static cone penetration and automatically retrieve the test rod.

[0005] Technical solution: The present invention includes a probe rod, the probe rod including a probe probe, the probe probe passing through the folding correction device and the drive wheel assembly from top to bottom, the tail of the probe probe extending out of the folding correction device is connected to a folding extension rod, the folding extension rod including several rods, adjacent rods being connected by connectors, and forming a fold at the connectors.

[0006] The folding correction device includes an electric slide rail, on which multiple sets of electric telescopic rods are slidably connected.

[0007] The electrically operated telescopic rods are located on both sides of the probe.

[0008] The electrically operated telescopic rod can be joined or separated.

[0009] The connector includes hinges that are hinged to each other, one of which has a protrusion and the other has a groove that mates with the protrusion.

[0010] Magnets are provided on the contact surfaces of the protrusions and grooves, as well as the contact surfaces of the hinges, to fix each folding extension rod after it is straightened. When the probe is folded, it can attract the iron folding extension rod, so that the probe in the folded state will not fall downward due to gravity.

[0011] The connector has internal channels and space for placing the data cable to prevent damage to the data cable when the connector is assembled.

[0012] The drive wheel assembly is equipped with mutually perpendicular electric roller structures to limit the horizontal deviation of the probe during penetration.

[0013] The probe is installed inside the frame, the top of the folding extension rod is connected to the top surface of the frame, and the bottom of the drive wheel assembly is fixed to the bottom surface of the frame.

[0014] A method for using a foldable automatic penetration and retrieval static cone penetration test rod includes the following steps:

[0015] Step 1: Before probing, check whether the probe is embedded in the drive wheel assembly, and confirm that the friction between the drive wheel assembly and the probe is being applied normally. Also, confirm that the electric telescopic rod in the folding correction device is in the separated state.

[0016] Step 2: Turn on the drive wheel assembly and apply downward friction to the probe rod. The probe rod penetrates downward, and the upper folded extension rod is pulled into the probe by the tension. The connection node is then fixed by the connector. At the same time, record the various data of static penetration.

[0017] Step 3: After the survey is completed, the drive wheel set drives in the opposite direction to apply an upward frictional force to the probe rod, which is pulled upward. At the same time, the telescopic electric rods in the folding and correction device engage alternately, applying force alternately in the direction of force required for probe rod folding, so that the probe rod folds.

[0018] Beneficial effects: This invention enables automatic insertion and retrieval of static cone penetration test rods, avoiding the problem of disrupting the continuity of the test by manually changing rods; it enables detachable and integrated transportation of extension rods and cone penetration test probes, avoiding excessively long extension rods; and it greatly simplifies the extension process by connecting extension rods with hinged connectors and powerful magnets. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the foldable static cone penetration test rod of the present invention;

[0021] Figure 3 This is a schematic diagram of the connecting component structure of the present invention;

[0022] Figure 4 This is an internal cross-sectional view of the connecting member of the present invention. Detailed Implementation

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] like Figures 1 to 4As shown, the present invention includes a frame 6 and a probe rod. The probe rod is entirely disposed within the frame 6. The probe rod includes a probe 1, which passes through the folding correction device 5 and the drive wheel assembly 4 from top to bottom. A folding extension rod 2 is connected to the tail of the probe 1 extending from the folding correction device 5. The top of the folding extension rod 2 is connected to the upper bottom surface of the frame 6, and the bottom of the drive wheel assembly 4 is fixed to the lower bottom surface of the frame 6. Figure 1 As shown.

[0025] like Figure 2 As shown, the folding extension rod 2 includes several rods connected end to end, with adjacent rods connected by connectors 3, forming a fold at the connectors 3. Figure 3 and Figure 4 As shown, the connector 3 includes hinged members 32 that are hinged to each other. One hinged member 32 has a protrusion, and the other hinged member 32 has a groove that mates with the protrusion. A strong magnet 31 is provided on the contact surface between the protrusion and the groove, as well as on the contact surface of the hinged member. The strong magnet 31 is used to fix each folded extension rod 2 after it is straightened, and it can also attract the iron folded extension rod 2 when the probe is folded, preventing the probe from falling downwards due to gravity. The hinged member 32 is used to connect the folded members. The connector 3 has a hole 33 for installing a data cable and a space 34 for placing the data cable inside, to prevent damage to the data cable when the connector 3 is closed.

[0026] The drive wheel assembly 4 is an electric drive wheel assembly, which includes two pairs of mutually perpendicular electric rollers. The penetrometer 1 extends into the two pairs of electric rollers. The electric rollers are used to limit the horizontal deviation of the penetrometer 1 during penetration. During the survey, the drive wheel assembly 4 squeezes the penetrometer 1 to provide downward friction to achieve penetration. After the survey is completed, the drive wheel assembly 4 drives the penetrometer 1 in the opposite direction to achieve probe rod retrieval. At the same time, the penetration depth can be calculated by recording the roller speed and rotation time during penetration.

[0027] The folding and straightening device 5 includes an electric slide rail 52, on which two sets of electric telescopic rods 51 are slidably connected. The two sets of electric telescopic rods 51 are located on both sides of the probe 1. The electric telescopic rods 51 can freely connect or separate and can move horizontally along the electric slide rail 52. During the probe retrieval process, whenever the probe's connecting piece 3 approaches one of the electric telescopic rods 51, that electric telescopic rod 51 engages and applies a thrust to the probe in the opposite direction of its movement after the connecting piece 3 contacts it. Similarly, when the probe contacts the other electric telescopic rod 51, that electric telescopic rod 51 applies an opposite thrust to the probe, and so on, so that the probe can be folded layer by layer.

[0028] The method of using this invention includes the following steps:

[0029] Step 1: Before probing, check whether the probe is embedded in the center of the drive wheel assembly 4, and confirm that the drive wheel assembly 4 and the probe surface are clean, the friction can be applied normally without slipping, and confirm that the electric telescopic rod in the folding correction device 5 is in the separated state.

[0030] Step 2: Turn on the drive wheel assembly 4 and apply downward friction to the probe rod. The probe rod penetrates downward, while the upper folding extension rod 2 is pulled into the probe. The connection node is then fixed by the connector 3. At the same time, the data cable extending to the other end of the extension rod records various static penetration data.

[0031] Step 3: After the survey is completed, the drive wheel set 4 drives in the opposite direction to apply an upward frictional force to the probe rod, which is pulled out upward. At the same time, the two sets of electric telescopic rods 51 in the folding and correction device 5 alternately engage and apply lateral force alternately in the direction of force required for probe rod folding, so that the positive and negative poles of the strong magnet 31 in the connector 3 are disconnected, thereby causing the probe rod to fold again.

Claims

1. A foldable, automatically penetrating and retrieving static cone penetration test rod, characterized in that, The device includes a probe rod, which includes a probe head. The probe head passes through a folding correction device and a drive wheel assembly from top to bottom. A folding extension rod is connected to the tail end of the probe head that extends out of the folding correction device. The folding extension rod includes several rods, which are connected to each other by connectors and form folds at the connectors. The folding correction device includes an electric slide rail, on which multiple sets of electric telescopic rods are slidably connected. The electric telescopic rods are located on both sides of the probe head.

2. The foldable automatic penetration and retrieval static cone penetration test rod according to claim 1, characterized in that, The electrically operated telescopic rod can be joined or separated.

3. The foldable automatic penetration and retrieval static cone penetration test rod according to claim 1, characterized in that, The connector includes hinges that are hinged to each other, one of which has a protrusion and the other has a groove that mates with the protrusion.

4. A foldable automatic penetration and retrieval static cone penetration test rod according to claim 3, characterized in that, Magnets are provided on the contact surfaces of the protrusion and the groove, as well as on the contact surfaces of the hinge.

5. A foldable automatic penetration and retrieval static cone penetration test rod according to claim 1, characterized in that, The connector has internal channels.

6. A foldable automatic penetration and retrieval static cone penetration test rod according to claim 1, characterized in that, The drive wheel assembly is equipped with mutually perpendicular electric roller structures.

7. A foldable automatic penetration and retrieval static cone penetration test rod according to claim 1, characterized in that, The probe is installed inside the frame, the top of the folding extension rod is connected to the top surface of the frame, and the bottom of the drive wheel assembly is fixed to the bottom surface of the frame.

8. A method for using a foldable automatic penetration and retrieval static cone penetration test rod according to any one of claims 1 to 7, characterized in that, Includes the following steps: Step 1: Before probing, check whether the probe is embedded in the drive wheel assembly, and confirm that the friction between the drive wheel assembly and the probe is being applied normally. Also, confirm that the electric telescopic rod in the folding correction device is in the separated state. Step 2: Turn on the drive wheel assembly and apply downward friction to the probe rod. The probe rod penetrates downward, and the upper folded extension rod is pulled into the probe by the tension. The connection node is then fixed by the connector. At the same time, record the various data of static penetration. Step 3: After the survey is completed, the drive wheel set drives in the opposite direction to apply an upward frictional force to the probe rod, which is pulled upward. At the same time, the telescopic electric rods in the folding and correction device engage alternately, applying force alternately in the direction of force required for probe rod folding, so that the probe rod folds.

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