Geomembrane defect multidirectional detection rod used under cover weight condition

Abstract

The utility model discloses a geomembrane defect multidirectional detection rod under a heavy cover condition, which comprises a vertical telescopic rod, a handheld short rod and a mounting rod, a plurality of groups of rotating sleeves are arranged on the mounting rod, and horizontal telescopic rods are symmetrically fixed on two sides of each rotating sleeve; a steel chisel clamp is fixed to the far end of each horizontal telescopic rod, a steel chisel is fixed to each steel chisel clamp, and each steel chisel is connected with a detection line. The multi-directional detection rod comprises the vertical telescopic rod and the horizontal telescopic rods which can be telescopically stored, so that the size of the multi-directional detection rod is reduced, the steel chisels are stored and fixed in cooperation with the steel chisel buckles, the size of the multi-directional detection rod is further reduced, and the multi-directional detection rod is convenient to carry and use. The multidirectional detection rod comprises four groups of steel chisels which can be stored, two steel chisels in each group form a group of receiving electrodes M and receiving electrodes N. The four groups of receiving electrodes M and receiving electrodes N can realize electric signal detection in eight directions at a detection position.

Description

Technical Field

[0001] This utility model relates to the field of geomembrane defect detection technology, specifically to a multi-directional detection rod for geomembrane defects under load conditions. Background Technology

[0002] Geomembrane is a new type of seepage-proof material made from high molecular polymers. It has advantages such as strong deformation capacity, good seepage-proof performance, and low economic cost, and is widely used as seepage-proof material for hydraulic structures such as reservoirs, water storage tanks, and canals.

[0003] After the geomembrane is laid, it needs to be covered with a compacted layer of sand or gravel as a protective layer. During the compaction of this protective layer using heavy machinery, the underlying covering material can easily damage the geomembrane, affecting its waterproofing performance. For defect detection of geomembranes under covered conditions, a dual-electrode method is generally used. This method involves applying an electric field to the geomembrane and moving a detection device to locate defects based on the potential distribution within the protective layer. During detection, a power supply electrode is placed in both the upper and lower layers of the geomembrane, connected to the positive and negative terminals of a high-voltage DC power supply. Normally, when the geomembrane is intact, no circuit can be formed between the power supply electrodes. When there is a hole in the geomembrane, the defect provides a path, generating current in the circuit. In this case, the defect acts as a current source, and a significant anomaly in the potential field near the defect will appear. Therefore, the anomaly in the potential field on the membrane can be detected by moving a detection device to locate the hole. Existing mobile detection devices typically consist of a fixed support and receiving electrodes M and N at the bottom of the support. Data acquisition is achieved by moving the receiving electrodes M and N at the bottom of the device. However, these existing devices cannot be folded up, making them extremely inconvenient to carry. Furthermore, their large size limits efficiency during continuous testing. Therefore, to address these issues, it is necessary to propose a more efficient and portable device for detecting defects in geomembranes under heavy loads. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a multi-directional detection rod for geomembrane defects under load conditions.

[0005] To achieve the aforementioned objectives, the technical solution adopted by this invention is as follows: It includes a vertical telescopic rod, with a short handheld rod fixed to the top of the vertical telescopic rod; an installation rod is fixedly connected to the bottom of the vertical telescopic rod, and several sets of rotating sleeves are provided on the installation rod. The rotating sleeves can rotate horizontally, and horizontal telescopic rods are symmetrically fixed on both sides of each rotating sleeve; a steel rod clamp is fixed to the far end of each horizontal telescopic rod, and each steel rod clamp has a vertical through hole, with a steel rod fixed inside each vertical through hole, and a detection line connected to each steel rod.

[0006] Furthermore, a T-shaped tee is provided at the top of the vertical telescopic rod for mounting a short handheld rod. The bottom of the T-shaped tee is fixed to the vertical telescopic rod, and the short handheld rod is nested inside the top of the T-shaped tee.

[0007] Furthermore, a rubber ring is fixed inside the vertical through hole, and the inner diameter of the rubber ring is interference-fitted with the outer diameter of the steel rod.

[0008] Furthermore, the outermost telescopic cylinder of the vertical telescopic rod is fixed with several C-shaped steel rod clips, the number of which matches the number of steel rods.

[0009] Furthermore, the clamping axis of the steel chisel clip is parallel to the horizontal plane.

[0010] Furthermore, the clamping opening of the steel rod clip is an arc-shaped opening, and the inner diameter of the arc-shaped opening is in overfitting with the steel rod.

[0011] Furthermore, four rotating sleeves are provided, and the four rotating sleeves are evenly distributed on the mounting rod.

[0012] Furthermore, the large telescopic end of the vertical telescopic pole is fixedly connected to the mounting pole, and the small telescopic end of the vertical telescopic pole is fixedly connected to the handheld short pole.

[0013] Furthermore, the steel chisel clamp is made of insulated plastic.

[0014] Furthermore, a conical portion is provided at the top of the steel rod, and a disc portion is provided at the top of the steel rod.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model's multi-directional detection rod includes a vertical telescopic rod and several horizontal telescopic rods that can be telescopically stored, thereby reducing the size of the multi-directional detection rod. At the same time, it is used in conjunction with steel rod clips to store and fix several steel rods, further reducing the size of the multi-directional detection rod and making it convenient to carry and use.

[0017] The multi-directional detection rod of this utility model includes four sets of retractable steel rods. The two steel rods in each set form a set of receiving electrodes M and N. The four sets of receiving electrodes M and N can realize the detection of electrical signals in eight directions at the detection position.

[0018] The multi-directional detection rod of this utility model can realize the detection of geomembrane defects under the condition of cover weight. The grounding electrode of the traditional DC resistance dipole device has been modified to realize the free movement of the electrode, thereby realizing the detection of geomembrane defects (≥5mm) under the condition of cover weight (600mm).

[0019] The multi-directional detection rod of this invention eliminates the need for wire laying, electrode insertion, and electrode replacement, greatly improving detection efficiency. At the same time, compared with the traditional DC resistivity method detection device, one person can complete all the detection work, reducing labor intensity and greatly improving detection efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a top view of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the present invention after it has been stored.

[0024] The symbols for each component are as follows:

[0025] 1. Handheld short pole; 2. T-shaped tee; 3. Vertical telescopic pole; 4. Steel chisel clip; 5. Multi-directional connecting shaft; 6. Horizontal telescopic pole; 7. Steel chisel clamp; 8. Steel chisel. Detailed Implementation

[0026] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0027] like Figures 1 to 3As shown, the multi-directional detection rod for geomembrane defects under load conditions includes a vertical telescopic rod 3. A handheld short rod 1 is fixed to the top of the vertical telescopic rod 3. A T-shaped tee 2 for mounting the handheld short rod 1 is provided at the top of the vertical telescopic rod 3. The bottom of the T-shaped tee 2 is fixed to the vertical telescopic rod 3. The handheld short rod 1 is nested inside the top of the T-shaped tee 2, allowing for convenient movement of the multi-directional detection rod and facilitating the detection of geomembrane defects. An installation rod is fixedly connected to the bottom of the vertical telescopic rod 3. Four sets of rotating sleeves are provided on the installation rod, evenly distributed on the installation rod. Each rotating sleeve can rotate horizontally. Horizontal telescopic rods 6 are symmetrically fixed on both sides of each rotating sleeve. A steel rod clamp 7 is fixed to the far end of each horizontal telescopic rod 6. The steel rod clamp 7 is preferably made of insulating plastic. Each steel rod clamp 7 has a vertical through hole, and a steel rod 8 is fixed in each vertical through hole. Each steel rod 8 is connected to a detection line. Two horizontal telescopic rods 6 on each rotating sleeve are equipped with two steel rods 8. The two steel rods 8 form a set of receiving electrodes M and N to realize electrical signal detection in one direction. The eight steel rods 8 form four sets of steel rods 8 to realize electrical signal detection in four directions.

[0028] In this embodiment, a rubber ring is fixed inside the vertical through hole. The inner diameter of the rubber ring is interference-fitted with the outer diameter of the steel rod. The friction between the rubber ring and the steel rod can be used to tighten the steel rod without affecting its driving into the soil.

[0029] In this embodiment, the outermost telescopic cylinder of the vertical telescopic rod 3 is fixed with several C-shaped steel rod clips 4. The number of steel rod clips 4 matches the number of steel rods 8. The clamping axis of the steel rod clips 4 is parallel to the horizontal plane, and the clamping opening of the steel rod clips 4 is an arc-shaped opening with an inner diameter that fits the steel rod 8. Preferably, eight steel rod clips 4 are provided, and the eight steel rods 8 can be fixed in parallel within the eight steel rod clips 4, thus facilitating the storage of the steel rods 8. The use of C-shaped steel rod clips 4 to fix the steel rods 8 greatly facilitates the fixing and retrieval of the steel rods 8.

[0030] In this embodiment, the large telescopic end of the vertical telescopic rod 3 is fixedly connected to the mounting rod, and the small telescopic end of the vertical telescopic rod 3 is fixedly connected to the handheld short rod 1.

[0031] In this embodiment, the top of the steel rod 8 is provided with a conical part, which makes it easier for the steel rod 8 to be inserted into the soil. The top of the steel rod 8 is provided with a disc part, which can increase the contact area with the hammer, thereby better cooperating with the hammer's striking operation.

[0032] The detection principle of this utility model is as follows: S1: Determine the detection range and detection parameters according to the detection purpose; S2: The detection personnel adjust the transmitter parameters and knock the transmitting electrode A and electrode B into the fixed position; S3: The detection personnel first install and unfold the multi-directional detection rod, and then move the detection rod to the detection area for detection; S4: After the detection is completed, the detection personnel can turn off the transmitter.

[0033] The steps for changing the storage mode to the usage mode in this utility model are as follows: Figure 1 As shown, remove the steel rod 8 from the steel rod clip 4, extend and lock the four horizontal telescopic rods 6 as needed, rotate the different horizontal telescopic rods 6 to the required direction and lock them through the multi-directional connecting shaft 5, fix the eight steel rods 8 to the horizontal telescopic rods 6 through the steel rod clamp 7, and extend and lock the vertical telescopic rod 3 as needed. This is the usage mode.

[0034] The steps for changing the usage mode to the storage mode of this utility model are as follows: Figure 4 As shown, loosen the steel rod clamp 7, remove all 8 steel rods 8 from the horizontal telescopic rod 6, loosen the multi-directional connecting shaft 5, rotate the 4 horizontal telescopic rods 6 to the same direction as the handheld short rod 1 and lock them, compress all the vertical telescopic rods 3, and fix the 8 steel rods 8 in sequence to the vertical telescopic rod 3 through the steel rod buckle 4, which is the storage mode.

Claims

1. A multi-directional detection rod for geomembrane defects under load conditions, characterized in that, Includes a vertical telescopic rod (3), and a handheld short rod (1) is fixed to the top of the vertical telescopic rod (3); The vertical telescopic rod (3) is fixedly connected to the bottom of the mounting rod, and the mounting rod is provided with several sets of rotating sleeves. The rotating sleeves can rotate in the horizontal direction, and horizontal telescopic rods (6) are symmetrically fixed on both sides of each rotating sleeve. Each horizontal telescopic rod (6) has a steel rod clamp (7) fixed at its far end. Each steel rod clamp (7) has a vertical through hole. Each vertical through hole has a steel rod (8) fixed inside. Each steel rod (8) is connected to a detection line.

2. The multi-directional detection rod for geomembrane defects under load conditions according to claim 1, characterized in that, The top of the vertical telescopic rod (3) is provided with a T-shaped tee (2) for installing a handheld short rod (1). The bottom of the T-shaped tee (2) is fixed to the vertical telescopic rod (3), and the handheld short rod (1) is nested inside the top of the T-shaped tee (2).

3. The multi-directional detection rod for geomembrane defects under load conditions according to claim 1, characterized in that, A rubber ring is fixed inside the vertical through hole, and the inner diameter of the rubber ring is interference-fitted with the outer diameter of the steel rod.

4. The multi-directional detection rod for geomembrane defects under overburden conditions according to claim 1, characterized in that, The outermost telescopic cylinder of the vertical telescopic rod (3) is fixed with several C-shaped steel rod buckles (4), and the number of steel rod buckles (4) matches the number of steel rods (8).

5. The multi-directional detection rod for geomembrane defects under overburden conditions according to claim 4, characterized in that, The clamping axis of the steel rod clip (4) is parallel to the horizontal plane.

6. The multi-directional detection rod for geomembrane defects under load conditions according to claim 4, characterized in that, The clamping opening of the steel rod clip (4) is an arc opening, and the inner diameter of the arc opening is overfitted to the steel rod (8).

7. The multi-directional detection rod for geomembrane defects under load conditions according to claim 1, characterized in that, The rotating sleeve is provided in four places, and the four rotating sleeves are evenly distributed on the mounting rod.

8. The multi-directional detection rod for geomembrane defects under load conditions according to claim 1, characterized in that, The large end of the vertical telescopic rod (3) is fixedly connected to the mounting rod, and the small end of the vertical telescopic rod (3) is fixedly connected to the handheld short rod (1).

9. The multi-directional detection rod for geomembrane defects under overburden conditions according to claim 1, characterized in that, The steel rod clamp (7) is made of insulating plastic.

10. The multi-directional detection rod for geomembrane defects under load conditions according to claim 1, characterized in that, The top of the steel rod (8) is provided with a conical part and the top of the steel rod (8) is provided with a disc part.

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