A pressure level measuring probe

Abstract

This invention belongs to the field of geotechnical engineering exploration technology, specifically a pressure water level measuring probe, including a drill rod assembly with a threaded connection at its bottom to a mechanical drill, enabling drilling at the water level to be measured; a connecting rod assembly with a threaded connection inside the drill rod assembly; a probe assembly detachably mounted on the top of the connecting rod assembly, enabling it to make initial contact with the water level; and a limiting nut with a threaded connection to the lower end of the outer wall of the probe assembly, with its top contacting the bottom of the drill rod assembly. This invention can reduce measurement errors of pressure water levels, make construction lighter and more convenient, reduce cost input, and improve measurement efficiency.

Description

Technical Field

[0001] This invention relates to the field of geotechnical engineering investigation technology, specifically to a pressure water level measurement probe. Background Technology

[0002] Geotechnical engineering investigation refers to the activity of investigating, analyzing, and evaluating the geological and environmental characteristics and geotechnical engineering conditions of a construction site in accordance with the requirements of a construction project, and preparing investigation documents.

[0003] The task of geotechnical engineering investigation is to accurately reflect the engineering geological conditions of the site and the influence of the properties of the soil and rock mass according to the requirements of different investigation stages. In conjunction with the specific requirements of engineering design, construction conditions and foundation treatment, it conducts technical demonstration and evaluation, submits specific and decisive suggestions for handling geotechnical engineering problems and solving problems, and puts forward design guidelines for foundations, slopes and other engineering projects and guiding opinions for geotechnical engineering construction, so as to provide a basis for design and construction and serve the entire process of engineering construction.

[0004] The purpose of geotechnical engineering investigation is to: investigate, study, and analyze the construction site using testing methods and techniques; study the geological conditions for constructing various engineering buildings and the impact of construction on the natural geological environment; study measures to ensure the strength and stability of the foundation and prevent unacceptable deformation when the foundation, substructure, and superstructure work together; propose the bearing capacity of the foundation; and provide the engineering site and geotechnical engineering data required for foundation design and construction, as well as foundation reinforcement when necessary.

[0005] In summary, geotechnical engineering investigation of construction sites and foundations is also a comprehensive engineering geological survey, and its basic tasks are mainly:

[0006] (1) Investigate the natural conditions of the building area, such as topography, landforms, meteorology and hydrology.

[0007] (2) Study adverse geological phenomena such as collapse, landslide, karst, and bank erosion in the site area, and analyze and determine the degree of harm to the stability of the building site.

[0008] (3) Investigate the structure, formation age, origin, soil type and burial distribution of the foundation rock and soil layers.

[0009] (4) Determine the physical and mechanical properties of the foundation soil layer of the building and study the possible changes that may occur during the construction and use of the building.

[0010] (5) Investigate the type, quality, depth, distribution and changes of groundwater.

[0011] (6) Conduct a comprehensive geotechnical engineering evaluation of the site and foundation's engineering geological conditions in accordance with design and construction requirements, and provide reasonable conclusions and recommendations.

[0012] (7) Propose practical and feasible treatment solutions for soil and rock layers that are unfavorable to construction.

[0013] In existing geotechnical engineering investigations, accurate measurement of confined water levels provides crucial information for the construction and safety of underground engineering projects. The conventional method involves drilling a hole to a certain depth using machinery, then installing a casing. The gap between the casing and the borehole is filled with clay balls to stop water seepage. The confined water level is then measured inside the casing. This method is costly, inefficient, and the test results are greatly affected by human factors, resulting in significant errors. Therefore, we propose a confined water level measurement probe. Summary of the Invention

[0014] In view of the problems existing in the above and / or in a conventional pressurized water level measuring probe, the present invention is proposed.

[0015] Therefore, the purpose of this invention is to provide a pressurized water level measuring probe. By connecting the connecting rod assembly inside the drill rod assembly and movably connecting the upper end of the connecting rod assembly to the probe assembly, during operation, the drill rod assembly and the probe assembly are simultaneously pressed underwater and then detached from the probe assembly, allowing pressurized water to enter the water inlet holes around the drill rod for measurement. This solves the aforementioned existing problems.

[0016] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0017] A confined water level measuring probe, comprising:

[0018] The drill rod assembly has a threaded connection to a mechanical drill at its bottom and is capable of drilling at the measured water level.

[0019] The connecting rod assembly is threadedly connected inside the drill pipe assembly;

[0020] The probe assembly is detachably mounted on top of the connecting rod assembly and is able to make initial contact with the water level being measured.

[0021] The limiting nut is threaded onto the lower end of the outer wall of the probe assembly, and its top contacts the bottom of the drill rod assembly.

[0022] In a preferred embodiment of the pressurized water level measuring probe described in this invention, the drill rod assembly includes:

[0023] A drill rod, which is used to drill holes at the measured water level;

[0024] The connecting seat is located at the bottom of the drill pipe.

[0025] In a preferred embodiment of the pressurized water level measuring probe described in this invention, the drill rod assembly includes:

[0026] A connecting groove is provided at the center of the drill rod surface and extends through the drill rod and the connecting seat to the bottom center of the connecting seat;

[0027] The water inlet hole is located around the surface of the drill rod and extends through the drill rod and the connecting seat to the bottom of the connecting seat.

[0028] In a preferred embodiment of the pressurized water level measuring probe described in this invention, the drill rod assembly includes:

[0029] The drill pipe has an internal thread, which is located on the inner wall of the connecting groove and can connect the connecting rod assembly.

[0030] The drill pipe has an external thread, which is located on the outer wall of the connector and can be used to connect the mechanical drill.

[0031] In a preferred embodiment of the pressurized water level measuring probe of the present invention, the connecting rod assembly includes:

[0032] The connecting rod is threaded into the inside of the connecting groove:

[0033] The bottom rod is located at the bottom of the connecting rod.

[0034] In a preferred embodiment of the pressurized water level measuring probe of the present invention, the connecting rod assembly includes:

[0035] External thread is provided on the outer wall of the connecting rod and the bottom rod, and the upper external thread is connected to the drill rod internal thread on the inner wall of the connecting groove;

[0036] The protrusions are located on both sides of the upper end of the outer wall of the connecting rod and can be inserted into the probe assembly.

[0037] As a preferred embodiment of the pressurized water level measuring probe of the present invention, the probe assembly includes:

[0038] The probe has a detachable connection rod at the bottom, which allows it to make initial contact with the water level being measured.

[0039] As a preferred embodiment of the pressurized water level measuring probe of the present invention, the probe comprises:

[0040] A limiting groove is located at the bottom of the probe and allows the connecting rod and the protrusion to be inserted.

[0041] The inner groove is located at the upper end of the limiting groove and allows the connecting rod and the protrusion to rotate inside the inner groove, so that the bottom of the protrusion contacts the top of the limiting groove.

[0042] Compared with existing technologies:

[0043] The drill rod assembly is equipped with four sets of water inlets, which allow pressurized water to enter the interior of the drill rod assembly through the upper water inlet after pressure is applied, thereby reducing errors in water level.

[0044] The connecting rod assembly allows the drill rod to be connected to the probe assembly, enabling the probe assembly to drill and be driven into the confined aquifer. This allows for accurate measurement of the confined water level within the drill rod, reducing measurement errors.

[0045] By setting the probe assembly to a conical shape, the probe assembly can be smoothly drilled into the water inlet hole in the soil to be measured. The probe assembly can also prevent silt from entering, allowing the measured water to enter the water inlet hole smoothly. On the one hand, this can reduce the measurement error of the pressurized water level, and on the other hand, it can make the construction lighter and more convenient, reduce the cost input, and improve the measurement efficiency by squeezing the water in the soil.

[0046] By setting two sets of limit nuts, and then threading one set of limit nuts to the lower end of the base rod, with the top of the limit nut contacting the bottom of the connecting seat, the connecting rod is blocked and limited. Then, by threading the other set of limit nuts to the lower end of the base rod, it is in close contact with the first set of limit nuts, thereby increasing the stability of blocking and limiting, and facilitating pressure-bearing operations. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2 This is a schematic diagram of the overall bottom view structure provided for the present invention;

[0049] Figure 3 This is a schematic diagram of the main structure of the drill pipe assembly provided by the present invention;

[0050] Figure 4 This is a schematic diagram of the drill pipe assembly structure provided by the present invention;

[0051] Figure 5 This is a bottom view of the drill pipe assembly provided by the present invention;

[0052] Figure 6 This is a schematic diagram of the connecting rod assembly structure provided by the present invention;

[0053] Figure 7 A schematic diagram of the connection structure of the connecting rod assembly provided by the present invention;

[0054] Figure 8 This is a schematic diagram of the disassembled structure of the limiting nut provided by the present invention;

[0055] Figure 9 This is a schematic diagram of the disassembled structure of the probe assembly provided by the present invention;

[0056] Figure 10 This is a bottom view of the probe assembly provided by the present invention.

[0057] In the diagram: Drill rod assembly 1, drill rod 11, connecting groove 12, drill rod internal thread 13, water inlet hole 14, connecting seat 15, drill rod external thread 16, connecting rod assembly 2, connecting rod 21, bottom rod 22, external thread 23, protrusion 24, probe assembly 3, probe 31, limiting groove 32, inner groove 33, limiting nut 4. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0059] This invention provides a confined water level measuring probe, which has the advantages of reducing measurement errors, making construction more convenient and easier, reducing costs, and improving measurement efficiency. Please refer to [link to related documentation]. Figure 1-10 It includes drill pipe assembly 1, connecting rod assembly 2, probe assembly 3, and limit nut 4;

[0060] The drill rod assembly 1 has a bottom threaded connection to a mechanical drill and is capable of drilling at the measured water level. The drill rod assembly 1 is equipped with four sets of water inlet holes 14, allowing pressurized water to enter the drill rod assembly 1 through the upper water inlet holes 14 after pressure is applied, thereby reducing errors in water level readings. The drill rod assembly 1 includes: a drill rod 11, a connecting groove 12, an internal thread 13, water inlet holes 14, a connecting seat 15, and an external thread 16. The drill rod 11 is capable of drilling at the measured water level and can be connected to the connecting rod assembly 2. Its rear end is connected to the mechanical drill, allowing the mechanical drill to drive the drill rod 11 and the connecting rod assembly 2 to drill at the measured water level. The connecting seat 15 is located on the drill rod 11. At the bottom, there is a connecting groove 12, which is located at the center of the surface of the drill rod 11 and passes through the drill rod 11 and the connecting seat 15 to the center of the bottom of the connecting seat 15. The connecting groove 12 allows the connecting rod assembly 2 to be connected to the drill rod 11. There are water inlets 14, which are located around the surface of the drill rod 11 and pass through the drill rod 11 and the connecting seat 15 to the bottom of the connecting seat 15. Through the water inlets 14, pressurized water can flow into the drill rod 11 from the four water inlets 14 at the bottom, so that the pressurized water level can be accurately measured in the drill rod 11. There is an internal thread 13 on the drill rod, which is located on the inner wall of the connecting groove 12 and can connect the connecting rod assembly 2. There is an external thread 16 on the drill rod, which is located on the outer wall of the connecting seat 15 and can be threaded to the mechanical drill.

[0061] The connecting rod assembly 2 is threaded inside the drill rod assembly 1. It connects the drill rod 11 to the probe assembly 3, enabling the probe assembly 3 to drill and penetrate into the confined aquifer. This allows for precise measurement of the confined water level within the drill rod 11, reducing measurement errors. The connecting rod assembly 2 includes a connecting rod 21, a bottom rod 22, an external thread 23, and a protrusion 24. The connecting rod 21 is threaded inside the connecting groove 12. Installed inside the drill rod 11, it connects the drill rod 11 to the probe assembly 3. The bottom rod 22, located at the bottom of the connecting rod 21, allows the limiting nuts 4 to be installed on the outer wall. This causes two sets of limiting nuts 4 to press against the bottom of the connecting rod 21, limiting its position. To prevent the connecting rod 21 from shifting during downward pressure, causing it to detach, an external thread 23 is provided on the outer wall of the connecting rod 21 and the bottom rod 22, and the upper external thread 23 is connected to the drill rod internal thread 13 on the inner wall of the connecting groove 12. A protrusion 24 is provided on both sides of the upper end of the outer wall of the connecting rod 21 and can be inserted into the probe assembly 3. Through the protrusions 24 on both sides of the upper end of the outer wall of the connecting rod 21, the protrusions 24 can be inserted into the probe assembly 3 and limited by rotation. When the probe assembly 3 is pressed into the confined aquifer, the probe assembly 3 can be easily detached, so that the confined water can flow into the drill rod from the four water inlets at the bottom. This allows for accurate measurement of the confined water level in the drill rod and prevents soil from entering the water inlet 14, which would cause errors in the water level measurement.

[0062] The probe assembly 3 is detachably mounted on the top of the connecting rod assembly 2 and can make initial contact with the water level to be measured. The probe assembly 3 is cone-shaped, allowing it to easily penetrate the soil being measured. It also prevents silt from entering the inlet hole 14, ensuring the water can smoothly enter the inlet hole 14. This reduces measurement errors of the pressurized water level, makes construction easier and more convenient, reduces costs, and improves measurement efficiency. The probe assembly 3 includes a probe 31, a limiting groove 32, and an inner groove 33. The probe 31 is detachably mounted on the top of the connecting rod 21 at its bottom, allowing it to make initial contact with the water level and smoothly pressurize the silt, thus allowing the measured water to enter the soil. The water is pressurized out for easy measurement and can block the water inlet 14 to prevent silt from entering the water inlet 14 and reduce measurement error. The limiting groove 32 is set at the bottom of the probe 31 and can insert the connecting rod 21 and the protrusion 24. The inner groove 33 is set at the upper end of the limiting groove 32 and can allow the connecting rod 21 and the protrusion 24 to rotate inside the inner groove 33 so that the bottom of the protrusion 24 contacts the top of the limiting groove 32. Through the protrusions 24 on both sides of the upper end of the outer wall of the connecting rod 21, the protrusion 24 can be inserted into the inside of the probe assembly 3 and limited by rotation, so that the connecting rod 21 and the probe 31 are connected. After the probe 31 is inserted, it can be easily detached so that pressurized water can enter the drill rod 11 through the water inlet 14 for easy measurement operation.

[0063] The limiting nut 4 is threaded to the lower end of the outer wall of the probe assembly 3, and its top contacts the bottom of the drill rod assembly 1. Two sets of limiting nuts 4 are set up. One set of limiting nuts 4 is threaded to the lower end of the bottom rod 22, and the top of the limiting nut 4 contacts the bottom of the connecting seat 15, thereby blocking and limiting the connecting rod 21. The other set of limiting nuts 4 is threaded to the lower end of the bottom rod 22, and is in close contact with the first set of limiting nuts 4, thereby increasing the stability of blocking and limiting, and facilitating pressure-bearing operation.

[0064] In practical use, those skilled in the art connect the connecting rod 21 to the drill rod 11 via the external thread 23, and extend it through the connecting groove 12 to the lower end of the connecting seat 15. Then, a set of limiting nuts 4 are threaded onto the lower end of the bottom rod 22, with the top of the limiting nuts 4 contacting the bottom of the connecting seat 15, thereby blocking and limiting the connecting rod 21. Another set of limiting nuts 4 is then threaded onto the lower end of the bottom rod 22, making close contact with the previous set of limiting nuts 4. Finally, the protrusion 24 is inserted into the probe assembly 3, and by rotating the connecting rod 21, the bottom of the protrusion 24 abuts against the top of the limiting groove 32 for limiting, thus connecting the connecting rod 21 to the probe 31. When measuring the confined aquifer level, a mechanical drill is connected to the outer wall of the connecting seat 15. The mechanical drill is started to statically pressurize the drill rod 11 and the probe 31, causing the probe 31 to drill into the soil. The drill rod 11 and the probe 31 are pressed into the confined aquifer. Then, the drill rod 11 is pulled back to about 0.50m. By rotating the probe 31, the conical part of the probe 31 automatically detaches. The confined water flows into the interior of the drill rod 11 from the four water inlets 14 at the bottom. This allows for accurate measurement of the confined aquifer level in the drill rod 11, thereby reducing measurement errors, making construction easier and more convenient, reducing costs, and improving measurement efficiency.

[0065] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A confined water level measuring probe, comprising: The drill rod assembly (1) has a mechanical drill threaded to its bottom and is capable of drilling at the measured water level. The features are: a connecting rod assembly (2), which is threadedly connected to the inside of the drill rod assembly (1); a probe assembly (3), which is detachably installed on the top of the connecting rod assembly (2) and is able to make contact with the measured water level first; and a limiting nut (4), which is threadedly connected to the lower end of the outer wall of the probe assembly (3) and whose top contacts the bottom of the drill rod assembly (1). The drill rod assembly (1) includes: a drill rod (11) capable of drilling at the measured water level; and a connecting seat (15) disposed at the bottom of the drill rod (11). The drill rod assembly (1) includes: a connecting groove (12) which is disposed at the center of the surface of the drill rod (11) and passes through the drill rod (11) and the connecting seat (15) to the bottom center of the connecting seat (15); and a water inlet hole (14) which is disposed around the surface of the drill rod (11) and passes through the drill rod (11) and the connecting seat (15) to the bottom around the connecting seat (15). The connecting rod assembly (2) includes a connecting rod (21) and protrusions (24) disposed on both sides of the upper end of the outer wall of the connecting rod (21). The probe assembly (3) includes: a probe (31) whose bottom is detachably mounted on the top of the connecting rod (21) and is able to make contact with the water level being measured first; a limiting groove (32) which is located at the bottom of the probe (31) and is able to insert the connecting rod (21) and the protrusion (24); and an inner groove (33) which is located at the upper end of the limiting groove (32) and is able to allow the connecting rod (21) and the protrusion (24) to rotate inside the inner groove (33) so that the bottom of the protrusion (24) contacts the top of the limiting groove (32).

2. The pressurized water level measuring probe according to claim 1, characterized in that, The drill pipe assembly (1) also includes: The drill pipe has an internal thread (13), which is located on the inner wall of the connecting groove (12) and can connect to the connecting rod assembly (2); The drill rod has an external thread (16), which is located on the outer wall of the connecting seat (15) and can be threaded to the mechanical drill.

3. The pressurized water level measuring probe according to claim 1, characterized in that, The connecting rod assembly (2) includes: The connecting rod (21) is threaded into the inside of the connecting groove (12): The bottom rod (22) is located at the bottom of the connecting rod (21).

4. The pressurized water level measuring probe according to claim 1, characterized in that, The connecting rod assembly (2) includes: External thread (23) is provided on the outer wall of the connecting rod (21) and the bottom rod (22), and the upper external thread (23) is connected to the drill rod internal thread (13) on the inner wall of the connecting groove (12); The protrusion (24) is located on both sides of the upper end of the outer wall of the connecting rod (21) and can be inserted into the inside of the probe assembly (3).

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