Resistivity test probe fixing device

Abstract

The utility model discloses a resistivity test probe fixing device, which comprises a test probe fixing assembly, a support column, a base plate and a telescopic rod, the test probe fixing assembly is used for clamping and fixing a test probe, the support column is connected with a longitudinal adjusting assembly, the test probe fixing assembly is connected with the longitudinal adjusting assembly, and the telescopic rod is connected with the base plate. According to the utility model, the telescopic rods are horizontally arranged, are used for connecting two adjacent supporting columns and are detachably connected with each other, so that the four test probes can be maintained on the same straight line, the distances between the test probes are equal, and the test probes can be fixed on the same straight line. According to the device, the data acquisition accuracy is guaranteed, the influence caused by manual errors does not need to be eliminated through complex calculation, use is convenient, the distance between the test probes can be adjusted through the telescopic rods, field assembly is facilitated, the size can be reduced for transportation, use is convenient and fast, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of probe fixing devices, in particular to a resistivity test probe fixing device. Background Art

[0002] At present, in the prior art, the soil resistivity is often measured by the surface four-electrode equal-spacing method to measure the soil resistivity from the surface to the test electrode spacing. The test probe is buried at the position to be measured and measured nearby, and the true soil resistivity near the buried metal can be measured. For example, Chinese Patent Publication No.: CN207067220U discloses a resistivity test probe fixing device, which relates to the field of probe fixing devices. The key points of its technical solution are: including a hollow shell, a scissor mechanism is arranged in the shell, and a probe hole for fixing the resistivity test probe is arranged at the pivot of the scissor mechanism; one end of the scissor mechanism is provided with a driving mechanism for driving the scissor mechanism to expand and contract. The utility model uses a mechanical structure to fix the resistivity test probe, ensuring that the spacing between adjacent resistivity test probes is equal and adjustable, without the need to eliminate artificial errors through complex calculations, and the measurement is accurate.

[0003] The above-mentioned technology installs four probes in a single shell, resulting in a relatively large device volume, which is not convenient for on-site installation, use, and transportation, and is rather inconvenient to use. Moreover, the depth of the probe inserted into the soil is difficult to adjust, which affects the test results according to the requirements of different test regions. Therefore, it is necessary to design a resistivity test probe fixing device to improve the above problems. Summary of the Utility Model

[0004] 1. Technical Problems to be Solved by the Utility Model

[0005] Aiming at the deficiencies of the prior art, the purpose of the present utility model is to provide a resistivity test probe fixing device, aiming to solve the problems in the prior art that the device volume is relatively large, not convenient for on-site installation, use, and transportation, rather inconvenient to use, and the depth of the probe inserted into the soil is difficult to adjust, affecting the test results.

[0006] 2. Technical Solution

[0007] To achieve the above purpose, the present utility model provides the following technical solution:

[0008] A resistivity test probe fixing device, comprising:

[0009] A test probe fixing assembly for clamping and fixing the test probe;

[0010] A support column, on which a longitudinal adjustment assembly is connected, the test probe fixing assembly is connected to the longitudinal adjustment assembly, and the longitudinal adjustment assembly is used to adjust the depth of the test probe inserted into the soil;

[0011] A bottom plate, which is fixedly connected to the bottom of the support column. An avoidance groove for the test probe to pass through is formed on the bottom plate, and ground insertion rods are installed at the bottom of the bottom plate.

[0012] A telescopic rod, which is horizontally arranged and used to connect two adjacent support columns. The telescopic rod is detachably connected to the support column.

[0013] Preferably, the test probe fixing assembly includes a mounting plate. One side of the mounting plate is fixedly connected to a fixed clamping plate. At both ends of one side of the fixed clamping plate, guide rods are fixedly connected. One end of each guide rod is fixedly connected to the same fixing plate. A movable clamping plate is slidably installed between the two guide rods. The movable clamping plate is located between the fixed clamping plate and the fixing plate. A clamping screw is bolted to the fixing plate, and one end of the clamping screw abuts against the side wall of the movable clamping plate.

[0014] Preferably, clamping grooves are provided on the opposite sides of the fixed clamping plate and the movable clamping plate. The clamping grooves are adapted to the test probe, and insulating layers are fixedly bonded in the clamping grooves.

[0015] Preferably, fixing rods are fixedly connected to the top and bottom of the fixed clamping plate, and positioning pieces are fixedly connected to the fixing rods. The shape of the positioning pieces is adapted to the test probe.

[0016] Preferably, the longitudinal adjustment assembly includes a receiving groove formed in the support column, a lead screw rotatably connected in the receiving groove, and a moving seat slidably connected in the receiving groove. A threaded hole is formed in the moving seat, and the moving seat is threadedly connected to the lead screw through the threaded hole. The top end of the lead screw extends to the outside of the support column and is fixedly connected to a handle. The mounting plate is fixedly connected to one side of the moving seat.

[0017] Preferably, a scale is embedded on the outer wall of the support column on one side of the receiving groove, and a pointer is fixedly connected to one side of the moving seat. The pointer points to the scale.

[0018] Preferably, four ground insertion rods are arranged at the four corners of the bottom of the bottom plate, and the cross section of the ground insertion rods is a cross-shaped structure.

[0019] Preferably, an installation groove is formed at the bottom of the bottom plate. A connection head is provided at the top of the ground insertion rod. The connection head is inserted into the installation groove and fixedly connected to the bottom plate through a first fixing bolt.

[0020] Preferably, plug-in blocks are fixedly connected to both ends of the telescopic rod. A plug-in sleeve is fixedly connected to one side of the support column. A plug-in groove is formed in the plug-in sleeve. The plug-in block is inserted into the plug-in groove and fixedly connected to the plug-in sleeve through a second fixing bolt.

[0021] Preferably, the cross-sections of the plug-in block and the plug-in slot are both square structures.

[0022] 3. Beneficial effects

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] (1) Through the provided test probe fixing assembly, the test probe is placed between the fixed clamping plate and the movable clamping plate. By rotating the clamping screw, the position of the movable clamping plate is adjusted, and the test probe is clamped and fixed through the clamping grooves of the fixed clamping plate and the movable clamping plate. The structure is simple, featuring quick fixing and high reliability. Through the provided longitudinal adjustment assembly, by rotating the handle to drive the screw rod to rotate, the movable seat is axially moved on the screw rod to adjust the height of the test probe fixing assembly, thereby adjusting the depth of the test probe inserted into the soil, and the depth of the test probe inserted can be accurately measured by the pointer pointing to the scale.

[0025] (2) Through the provided telescopic rod, the telescopic rod is horizontally arranged and used to connect two adjacent support columns, which are detachably connected to each other. This can keep the four test probes in a straight line with equal distances between the test probes, ensuring the accuracy of data collection. There is no need to eliminate the influence of manual errors through complex calculations, which is convenient to use. Moreover, the telescopic rod can be used to adjust the distance between the test probes, is convenient for on-site assembly, can also reduce the volume for transportation, is convenient to use, and has high practicality. Description of the drawings

[0026] Figure 1 It is a schematic perspective view of the overall structure of the soil resistivity test probe fixing device;

[0027] Figure 2 It is a schematic enlarged perspective view of the test probe fixing assembly;

[0028] Figure 3 It is a schematic sectional view of the bottom plate and the ground insertion rod;

[0029] Figure 4 It is a schematic view of the telescopic rod structure.

[0030] In the figure: 1, support column; 101, receiving groove; 2, movable seat; 3, screw rod; 4, handle; 5, test probe fixing assembly; 501, mounting plate; 502, fixed clamping plate; 503, guide rod; 504, fixing plate; 505, movable clamping plate; 506, clamping screw; 507, fixed rod; 508, positioning piece; 6, scale; 7, bottom plate; 701, mounting groove; 8, ground insertion rod; 801, connection head; 802, first fixing bolt; 9, telescopic rod; 901, plug-in block; 902, second fixing bolt; 10, plug-in sleeve. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment:

[0033] Please refer to Figures 1 - 4 , this embodiment provides a resistivity test probe fixing device, which includes a test probe fixing assembly 5, a support column 1, a bottom plate 7 and a telescopic rod 9. The test probe fixing assembly 5 is used to clamp and fix the test probe. A longitudinal adjustment assembly is connected to the support column 1, and the test probe fixing assembly 5 is connected to the longitudinal adjustment assembly. The longitudinal adjustment assembly is used to adjust the depth of the test probe inserted into the soil. The bottom plate 7 is fixedly connected to the bottom of the support column 1. An avoidance groove for the test probe to pass through is opened on the bottom plate 7. An earth insertion rod 8 is installed at the bottom of the bottom plate 7. The telescopic rod 9 is horizontally arranged. The telescopic rod 9 is a prior art and its length can be adjusted. There is no need to elaborate here. The telescopic rod 9 is used to connect two adjacent support columns 1. When in use, the soil resistivity test probe is installed and fixed through the test probe fixing assembly 5. The longitudinal height of the test probe is adjusted through the longitudinal adjustment assembly, so as to adjust the depth of the test probe inserted into the soil, so that the insertion depth of the test probe meets the test requirements. The stability of the installation of the support column 1 is improved through the earth insertion rod 8 to improve the stability of the fixed position of the test probe. The telescopic rod 9 is used to connect two adjacent support columns 1. In the prior art, the ground four-electrode equidistant method is often used for soil resistivity testing, which can make the four test probes maintain a straight line and the distance between the test probes is equal, ensuring the accuracy of data collection. Moreover, the telescopic rod 9 can be used to adjust the distance between the test probes, with high practicability.

[0034] As an implementation manner of this embodiment, as Figure 2As shown in the figure, the test probe fixing assembly 5 includes a mounting plate 501. One side of the mounting plate 501 is fixedly connected with a fixed clamping plate 502. At both ends on one side of the fixed clamping plate 502, there are fixedly connected guide rods 503. One end of each guide rod 503 is fixedly connected to the same fixing plate 504. A movable clamping plate 505 is slidably mounted between the two guide rods 503. The movable clamping plate 505 is located between the fixed clamping plate 502 and the fixing plate 504. A clamping screw 506 is bolted to the fixing plate 504. One end of the clamping screw 506 abuts against the side wall of the movable clamping plate 505. On the opposite sides of the fixed clamping plate 502 and the movable clamping plate 505, there are clamping grooves which are adapted to the test probe. An insulating layer is fixedly bonded in the clamping grooves. When the test probe is placed between the fixed clamping plate 502 and the movable clamping plate 505, by rotating the clamping screw 506, the position of the movable clamping plate 505 is adjusted, and the test probe is clamped and fixed by the clamping grooves of the fixed clamping plate 502 and the movable clamping plate 505. The structure is simple and has the characteristics of quick fixing and high reliability.

[0035] In this embodiment, as Figure 2 shown, at the top and bottom of the fixed clamping plate 502, there are fixedly connected fixed rods 507. On the fixed rods 507, there are fixedly connected positioning pieces 508. The two positioning pieces 508 are located in the same longitudinal plane. The shape of the positioning piece 508 is adapted to the test probe. When the test probe is installed and fixed, the test probe is abutted against the positioning piece 508, and the positioning piece 508 can limit the test probe to prevent the fixed position of the test probe from deflecting and ensure that the soil resistivity test probe is vertically inserted into the soil.

[0036] As an implementation manner of this embodiment, as Figure 1 shown, the longitudinal adjustment assembly includes a receiving groove 101 provided on the support column 1, a lead screw 3 rotatably connected in the receiving groove 101, and a moving seat 2 slidably connected in the receiving groove 101. The lead screw 3 is vertically arranged. A threaded hole is provided on the moving seat 2. The moving seat 2 is threadedly connected to the lead screw 3 through the threaded hole. The top end of the lead screw 3 extends to the outside of the support column 1 and is fixedly connected with a handle 4. The mounting plate 501 is fixedly connected to one side of the moving seat 2. By rotating the handle 4 to drive the lead screw 3 to rotate, the moving seat 2 is axially moved on the lead screw 3 to adjust the height of the test probe fixing assembly 5, so as to adjust the depth of the test probe inserted into the soil.

[0037] In this embodiment, as Figure 1 shown, on one side of the receiving groove 101 on the outer wall of the support column 1, there is an embedded scale 6. One side of the moving seat 2 is fixedly connected with a pointer. When the moving seat 2 is moved and adjusted, by the pointer pointing to the scale 6, the depth of the test probe inserted can be accurately measured.

[0038] As an implementation manner of this embodiment, as Figure 1 andFigure 3 As shown, there are four ground-inserting rods 8 arranged at the four corners of the bottom of the bottom plate 7. The cross-section of the ground-inserting rod 8 is a cross-shaped structure. Through the ground-inserting rod 8, it can be deeply inserted into the soil to improve the stability of fixation. An installation groove 701 is opened at the bottom of the bottom plate 7. A connecting head 801 is provided at the top of the ground-inserting rod 8. The connecting head 801 is inserted into the installation groove 701 and is connected and fixed to the bottom plate 7 through a first fixing bolt 802. Through this structural design, it is convenient to disassemble and assemble the ground-inserting rod 8 for maintenance or replacement. Among them, a horizontal measuring mechanism can be installed on the bottom plate 7 to ensure the horizontality of the installation position of the bottom plate 7.

[0039] As an implementation manner of this embodiment, as Figure 1 and Figure 4 shown, plug-in blocks 901 are fixedly connected to both ends of the telescopic rod 9. A plug-in sleeve 10 is fixedly connected to one side of the support column 1. A plug-in groove is opened on the plug-in sleeve 10. The plug-in block 901 is inserted into the plug-in groove and is connected and fixed to the plug-in sleeve 10 through a second fixing bolt 902. Through this structural design, it is convenient to disassemble and assemble the telescopic rod 9 and the support column 1, facilitating on-site assembly, and can also reduce the volume for transportation, with convenient use. Among them, the cross-sections of the plug-in block 901 and the plug-in groove are both square structures, ensuring that the telescopic rod 9 is in a horizontal position after installation.

[0040] Working principle: When in use, the support column 1 is installed and fixed by deeply inserting the ground-inserting rod 8 into the soil. Then, the test probe is placed between the fixed clamping plate 502 and the movable clamping plate 505. By rotating the clamping screw 506, the position of the movable clamping plate 505 is adjusted. The test probe is clamped and fixed through the clamping grooves of the fixed clamping plate 502 and the movable clamping plate 505. By rotating the handle 4, the lead screw 3 is rotated, driving the movable seat 2 to axially move on the lead screw 3, adjusting the height of the test probe fixing assembly 5, and adjusting the depth of the test probe inserted into the soil. By the pointer pointing to the scale 6, the depth of the test probe inserted is accurately measured. When the depth of the test probe inserted meets the requirements, the plug-in block 901 at one end of the telescopic rod 9 is installed and fixed in the plug-in sleeve 10. The installation position of the second support column 1 is determined according to the position of the plug-in block 901 at the other end of the telescopic rod 9. According to the above steps, the second test probe is inserted into the soil. According to the above steps, the installation and fixation of the four support columns 1 and the test probes are completed, enabling the four test probes to be maintained in a straight line to ensure the accuracy of data collection.

[0041] The above embodiment is a preferred implementation scheme of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A resistivity test probe fixing device, characterized in that: include: A test probe fixing assembly (5), the test probe fixing assembly (5) being used for clamping and fixing the test probe; A support column (1), the support column (1) being connected to a longitudinal adjustment component, the test probe fixing component (5) being connected to the longitudinal adjustment component, the longitudinal adjustment component being used to adjust the depth of the test probe inserted into the soil; A bottom plate (7), the bottom plate (7) being fixedly connected to the bottom of the support column (1), the bottom plate (7) being provided with an escape groove for the test probe to pass through, and a ground insertion rod (8) being installed at the bottom of the bottom plate (7); A telescopic rod (9), wherein the telescopic rod (9) is arranged horizontally and is used to connect two adjacent support columns (1); the telescopic rod (9) and the support columns (1) are detachably connected.

2. A resistivity test probe fixing device according to claim 1, characterized in that: The test probe fixing assembly (5) comprises a mounting plate (501), one side of the mounting plate (501) is fixedly connected to a fixed clamping plate (502), both ends of one side of the fixed clamping plate (502) are fixedly connected to guide rods (503), one end of the guide rod (503) is fixedly connected to the same fixed plate (504), a movable clamping plate (505) is slidably installed between the two guide rods (503), the movable clamping plate (505) is located between the fixed clamping plate (502) and the fixed plate (504), a clamping screw (506) is bolted to the fixed plate (504), and one end of the clamping screw (506) abuts against the side wall of the movable clamping plate (505).

3. A resistivity test probe fixing device according to claim 2, characterized in that: The fixed clamping plate (502) and the movable clamping plate (505) are both provided with clamping grooves on opposite sides thereof. The clamping grooves are adapted to the test probes, and an insulating layer is fixedly bonded in the clamping grooves.

4. A resistivity test probe fixing device according to claim 2, characterized in that: The top and bottom of the fixed clamping plate (502) are both fixedly connected to a fixed rod (507), and the fixed rod (507) is fixedly connected to a positioning piece (508), and the shape of the positioning piece (508) is adapted to the test probe.

5. A resistivity test probe fixing device according to claim 2, characterized in that: The longitudinal adjustment assembly comprises a receiving groove (101) clamped on the support column (1), a screw rod (3) rotatably connected to the receiving groove (101), and a movable seat (2) slidably connected to the receiving groove (101); a threaded hole is provided on the movable seat (2); the movable seat (2) is threadedly connected to the screw rod (3) through the threaded hole; the top end of the screw rod (3) extends to the outside of the support column (1) and is fixedly connected to a handle (4); and the mounting plate (501) is fixedly connected to one side of the movable seat (2).

6. A resistivity test probe fixing device according to claim 5, characterized in that: A scale (6) is embedded and installed on one side of the receiving groove (101) and located on the outer wall of the support column (1), and a pointer is fixedly connected to one side of the movable seat (2), and the pointer points to the scale (6).

7. A resistivity test probe fixing device according to claim 1, characterized in that: Four ground-inserting rods (8) are arranged at four corners along the bottom of the base plate (7), and the cross section of the ground-inserting rods (8) is a cross-shaped structure.

8. A resistivity test probe fixing device according to claim 7, characterized in that: The bottom of the base plate (7) is provided with a mounting groove (701), and the top of the ground-inserting rod (8) is provided with a connecting head (801). The connecting head (801) is inserted into the mounting groove (701) and is connected and fixed to the base plate (7) via a first fixing bolt (802).

9. A resistivity test probe fixing device according to claim 1, characterized in that: Both ends of the telescopic rod (9) are fixedly connected with a plug-in block (901), one side of the support column (1) is fixedly connected with a plug-in sleeve (10), the plug-in sleeve (10) is provided with a plug-in slot, the plug-in block (901) is inserted into the plug-in slot and is fixedly connected to the plug-in sleeve (10) via a second fixing bolt (902).

10. A resistivity test probe fixing device according to claim 9, characterized in that: The plug-in block (901) and the plug-in slot both have square cross-sections.

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