Multi-hole water pumping test device

Abstract

The utility model provides a porous water pumping test device, which belongs to the technical field of underground water exploration and comprises a fixed table and a plurality of support plates arranged on the outer side of the fixed table. And the drilling mechanism comprises a driving assembly which is arranged on the outer surfaces of the supporting plates and can switch different drilling modes according to different soil hardness, and a regulation and control assembly which is arranged on the outer surface of the fixing table and used for controlling the multiple supporting plates and the driving assembly to conduct lifting and variable-pitch movement. According to the utility model, through the cooperation of all parts in the driving assembly and the regulation and control assembly, not only can the spacing of a plurality of drill rods be flexibly adjusted to adapt to the porous distribution requirement and meet the diversified pumping test requirements, but also the working modes of the drill rods can be freely switched according to different terrain environments; through the pumping test of the submersible pump, the key hydrogeological parameters of the aquifer, such as the permeability coefficient, the water diversion coefficient and the specific yield, can be accurately calculated, the groundwater resource potential is effectively evaluated through the parameters, and the foundation of a development scheme is formulated.

Description

Technical Field

[0001] This utility model belongs to the field of groundwater exploration technology, specifically relating to a porous pumping test device. Background Technology

[0002] A multi-hole pumping test device is an important piece of equipment used for groundwater hydrogeological research and water resource development. It is mainly used to help determine the exploitable amount of groundwater in a certain area by simulating the actual groundwater extraction process, and to predict the impact of long-term extraction on the groundwater level by combining pumping test data and geological conditions. Multi-hole pumping test devices are usually designed with multiple pumping sections, which can extract groundwater at different depths or layers to analyze the hydraulic connection of each aquifer.

[0003] In some existing multi-hole pumping test devices, the drilling process typically involves driving the drill rod to rotate and press down to penetrate the soil. When the drill rod encounters hard rock in the soil, it may be difficult to break the rock by drilling alone, which will significantly reduce the drilling speed and increase the time required for the entire drilling process. This not only prolongs the construction period but may also affect the progress of subsequent pumping tests. Utility Model Content

[0004] The purpose of this invention is to provide a porous pumping test device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A porous pumping test device includes a support mechanism, a fixed platform, and several support plates disposed on the outside of the fixed platform;

[0007] The drilling mechanism includes a drive assembly disposed on the outer surface of the support plate and capable of switching different drilling modes according to different soil hardness, and a control assembly disposed on the outer surface of the fixed platform for controlling the lifting and pitching of several support plates and the drive assembly.

[0008] And, multiple submersible pumps located outside the fixed platform;

[0009] The drive assembly includes a first motor adapted to be installed on the top of the support plate, a drive column fixedly connected to the output end of the first motor via a coupling, a first ratchet sleeved on the outer end face of the drive column, and a second ratchet meshing with the outer surface of the first ratchet.

[0010] The control component includes a cylinder adapted to be installed at the bottom of the fixed platform, a cylindrical column fixedly connected to the output end of the cylinder, a connecting plate fixedly installed at the other end of the cylindrical column, and a number of inclined grooves arranged in a linear array on the surface of the connecting plate.

[0011] As a preferred embodiment of this utility model, the drive assembly further includes a transmission rod fixedly installed at the bottom of the second ratchet, a drill rod fixedly connected through the transmission rod, and a spring fixedly installed on the inner wall of the support plate and used in conjunction with the second ratchet.

[0012] In a preferred embodiment of this utility model, a rotating bearing sleeve is installed at the connection between the drive column and the support plate, and the outer end face of the spring slides in contact with the bottom of the second ratchet.

[0013] The spring is used to provide elastic support and reset for the second ratchet.

[0014] As a preferred embodiment of this utility model, the control assembly further includes a movable column movably connected to the inner wall of the inclined groove, a shaped rod fixedly connected to the outer end face of the movable column, a second motor adapted to be installed on the inner wall of the shaped rod, a threaded rod fixedly connected to the output end of the second motor via a coupling, and an internal threaded block threadedly connected to the outer surface of the threaded rod and used in conjunction with the support plate.

[0015] As a preferred embodiment of this utility model, the control component further includes a first guide rail and a second guide rail that are respectively fixedly connected to the top of both sides of the fixed platform and used in conjunction with the connecting plate and the rod.

[0016] In a preferred embodiment of this utility model, the outer end face of the threaded rod is fixedly mounted on the inner wall of the control assembly via a bearing, the outer surface of the internal threaded block is in sliding contact with the inner wall of the second motor, the outer surface of the internal threaded block is fixedly connected to the outer surface of the support plate, the bottom of the connecting plate is in sliding contact with the outer surface of the first guide rail, and the shaped rod is slidably sleeved on the outer surface of the second guide rail.

[0017] This utility model provides the following technical solution: a method of use, including the aforementioned porous pumping test device, the method comprising the following steps:

[0018] S1: Move the fixed platform to the drilling position, activate the cylinder, and drive the column, connecting plate and inclined groove to move linearly.

[0019] S2: Control the inclined groove to squeeze the movable column, so that the forming rod moves at equal distances along the second guide rail, driving the second motor, threaded rod, internal thread block and support plate to move synchronously, and adjusting the spacing of multiple drill rods;

[0020] S3: Start the first motor and the second motor. The first motor drives the drive column to rotate, which in turn drives the first ratchet to rotate clockwise, thereby driving the second ratchet, the transmission rod and the drill rod to rotate synchronously.

[0021] S4: Start the second motor to drive the threaded rod to rotate, and drive the support plate to move downward along the L-shaped rod through the internal thread block, so that the drill rod moves vertically downward while rotating;

[0022] S5: When encountering hard rock, shut off the second motor and control the first motor to rotate in the opposite direction. The first ratchet squeezes the second ratchet, causing the drill rod to move vertically downward and reset with the help of a spring, thus achieving impact crushing.

[0023] S6: After drilling is completed, submersible pumps are placed to the predetermined depth to extract groundwater. Flow meters and pressure sensors are used to monitor changes in flow and pressure. Data is analyzed to calculate parameters such as the permeability coefficient, hydraulic conductivity, and specific yield of the aquifer.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the cooperation of various components in the drive component and the control component, the spacing of multiple drill rods can be flexibly adjusted to adapt to the needs of multi-hole distribution and meet the diverse requirements of pumping tests. Furthermore, the working mode of the drill rods can be freely switched according to different terrain environments to significantly improve drilling speed and shorten the construction cycle. Through the pumping test of the submersible pump, key hydrogeological parameters of the aquifer, such as permeability coefficient, hydraulic conductivity, and specific yield, can be accurately calculated. These parameters effectively assess the potential of groundwater resources and form the basis for development plans, thus providing a scientific basis for the rational planning of groundwater resource development. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is another perspective view of the overall utility model;

[0028] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0029] Figure 4 This is a schematic diagram of the overall structure of the drive component in this utility model;

[0030] Figure 5 This is a schematic diagram of the overall structure of the control component in this utility model.

[0031] In the diagram: 100, bearing mechanism; 101, fixed platform; 102, support plate; 200, drilling mechanism; 201, drive assembly; 201a, first motor; 201b, drive column; 201c, first ratchet; 201d, second ratchet; 201e, transmission rod; 201f, drill rod; 201g, spring; 202, control assembly; 202a, cylinder; 202b, U-shaped column; 202c, connecting plate; 202d, inclined groove; 202e, movable column; 202f, L-shaped rod; 202g, second motor; 202h, threaded rod; 202i, internal threaded block; 202j, first guide rail; 202k, second guide rail; 300, submersible pump. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0035] Example 1

[0036] Reference Figures 1-5 This is the first embodiment of the present invention, which provides a porous pumping test device, comprising:

[0037] The supporting mechanism 100 includes a fixed platform 101 and several support plates 102 disposed on the outside of the fixed platform 101;

[0038] It should be noted that the fixed platform 101 is the core support structure of the entire device, used to install other components and provide a stable working platform. The support plate 102 is distributed in a straight line along one side of the fixed platform 101, used to provide an installation position for the drive component 201 in the drilling mechanism 200.

[0039] The drilling mechanism 200 includes a drive assembly 201 disposed on the outer surface of the support plate 102 and capable of switching different drilling modes according to different soil hardness, and a control assembly 202 disposed on the outer surface of the fixed platform 101 for controlling the lifting and pitch movement of several support plates 102 and drive assembly 201.

[0040] And a submersible pump 300 installed on the outside of the fixed platform 101;

[0041] It should be noted that multiple submersible pumps 300 are provided to extract groundwater from boreholes and complete multi-hole pumping tests. Submersible pumps 300 are existing technology and will not be described in detail in this solution. Moreover, those skilled in the art can clearly understand their working principle.

[0042] The drive assembly 201 includes a first motor 201a adapted to be installed on the top of the support plate 102, a drive column 201b fixedly connected to the output end of the first motor 201a via a coupling, a first ratchet 201c sleeved on the outer end face of the drive column 201b, and a second ratchet 201d meshing with the outer surface of the first ratchet 201c.

[0043] It should be noted that the first motor 201a is used to drive the drill rod 201f to rotate, providing power for drilling. It drives the first ratchet 201c to rotate clockwise through the drive column 201b, so that the first ratchet 201c drives the second ratchet 201d, the transmission rod 201e and the drill rod 201f to rotate synchronously.

[0044] The control component 202 includes a cylinder 202a adapted to be installed at the bottom of the fixed platform 101, a U-shaped column 202b fixedly connected to the output end of the cylinder 202a, a connecting plate 202c fixedly installed at the other end of the U-shaped column 202b, and a number of inclined grooves 202d arranged in a linear array on the surface of the connecting plate 202c.

[0045] It should be noted that cylinder 202a is used to control the linear movement of U-shaped column 202b, so that U-shaped column 202b drives connecting plate 202c and inclined groove 202d to move synchronously.

[0046] Specifically, the drive assembly 201 also includes a transmission rod 201e fixedly installed at the bottom of the second ratchet 201d, a drill rod 201f fixedly connected through the transmission rod 201e, and a spring 201g fixedly installed on the inner wall of the support plate 102 and used in conjunction with the second ratchet 201d.

[0047] It should be further explained that when the drill rod 201f encounters hard rock in the soil, the output end of the first motor 201a is controlled to rotate in the opposite direction, so that the first motor 201a drives the first ratchet 201c to rotate counterclockwise through the drive column 201b. Then, the inclined surface of the first ratchet 201c squeezes the second ratchet 201d, so that the second ratchet 201d drives the drill rod 201f to move vertically downward through the transmission rod 201e. Subsequently, the reaction force of the spring 201g resets the second ratchet 201d, the transmission rod 201e and the drill rod 201f, so as to achieve the effect of controlling the drill rod 201f to move vertically back and forth, breaking the hard rock.

[0048] Furthermore, a rotating bearing sleeve is installed at the connection between the drive column 201b and the support plate 102, and the outer end face of the spring 201g slides in contact with the bottom of the second ratchet 201d.

[0049] Spring 201g is used to provide elastic support and reset for the second ratchet 201d.

[0050] Preferably, the control assembly 202 further includes a movable column 202e movably connected to the inner wall of the inclined groove 202d, an L-shaped rod 202f fixedly connected to the outer end face of the movable column 202e, a second motor 202g adapted to be installed on the inner wall of the L-shaped rod 202f, a threaded rod 202h fixedly connected to the output end of the second motor 202g via a coupling, and an internal threaded block 202i threadedly connected to the outer surface of the threaded rod 202h and used in conjunction with the support plate 102.

[0051] Among them, the inclined groove 202d squeezes the movable column 202e, causing the movable column 202e to drive the L-shaped rod 202f to move at equal distances along the second guide rail 202k, thereby causing the L-shaped rod 202f to drive the second motor 202g, the threaded rod 202h, the internal threaded block 202i and the support plate 102 to move synchronously.

[0052] It should be noted that the control component 202 also includes a first guide rail 202j and a second guide rail 202k that are respectively fixedly connected to the top of both sides of the fixed platform 101 and used in conjunction with the connecting plate 202c and the L-shaped rod 202f.

[0053] Furthermore, the outer end face of the threaded rod 202h is fixedly installed on the inner wall of the control assembly 202 by a bearing, the outer surface of the inner threaded block 202i slides in contact with the inner wall of the second motor 202g, the outer surface of the inner threaded block 202i is fixedly connected to the outer surface of the support plate 102, the bottom of the connecting plate 202c slides in contact with the outer surface of the first guide rail 202j, and the L-shaped rod 202f is slidably sleeved on the outer surface of the second guide rail 202k.

[0054] In use, after moving the fixed platform 101 to a suitable drilling position, the cylinder 202a is activated. The cylinder 202a drives the U-shaped column 202b to move linearly, so that the U-shaped column 202b drives the connecting plate 202c and the inclined groove 202d to move synchronously. Then, the inclined groove 202d squeezes the movable column 202e, so that the movable column 202e drives the L-shaped rod 202f to move at equal distances along the second guide rail 202k. This causes the L-shaped rod 202f to drive the second motor 202g, the threaded rod 202h, the internal threaded block 202i and the support plate 102 to move synchronously, thereby adjusting the multiple drill rods 201f to a suitable spacing.

[0055] Simultaneously, the first motor 201a and the second motor 202g are started. The first motor 201a drives the drive column 201b to rotate, and the drive column 201b drives the first ratchet 201c to rotate clockwise. The first ratchet 201c drives the second ratchet 201d, the transmission rod 201e and the drill rod 201f to rotate synchronously. The second motor 202g drives the threaded rod 202h to rotate synchronously. The internal thread block 202i drives the support plate 102 to move downward in a straight line along the inner wall of the L-shaped rod 202f through the rotation of the threaded rod 202h. In this way, the drill rod 201f moves vertically downward while rotating.

[0056] When drill rod 201f encounters hard rock in the soil: the second motor 202g is turned off, and the output end of the first motor 201a is controlled to rotate in the opposite direction. The first motor 201a drives the first ratchet 201c to rotate counterclockwise through the drive column 201b. Then, the inclined surface of the first ratchet 201c squeezes the second ratchet 201d, causing the second ratchet 201d to drive the drill rod 201f to move vertically downward through the transmission rod 201e. Subsequently, the reaction force of the spring 201g resets the second ratchet 201d, the transmission rod 201e, and the drill rod 201f, so as to achieve the effect of controlling the drill rod 201f to move vertically back and forth, breaking the hard rock.

[0057] After drilling is completed: Insert the submersible pump 300 into the hole.

[0058] In summary, through the cooperation of the various components in the drive assembly 201 and the control assembly 202, the spacing between multiple drill rods 201f can be flexibly adjusted to adapt to the needs of multi-hole distribution and meet the diverse pumping test requirements. Furthermore, the working mode of the drill rods 201f can be freely switched according to different terrain environments to achieve the effect of significantly improving drilling speed and shortening the construction cycle.

[0059] Example 2

[0060] Reference Figures 1-5This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a test method, including a pumping test device.

[0061] S1: Move the fixed platform 101 to the drilling position, activate the cylinder 202a, and drive the U-shaped column 202b, connecting plate 202c and inclined groove 202d to move linearly.

[0062] S2: Control the inclined groove 202d to squeeze the movable column 202e, so that the L-shaped rod 202f moves at equal and variable distances along the second guide rail 202k, driving the second motor 202g, threaded rod 202h, internal threaded block 202i and support plate 102 to move synchronously, and adjust the spacing of multiple drill rods 201f.

[0063] S3: Start the first motor 201a and the second motor 202g. The first motor 201a drives the drive column 201b to rotate, which in turn drives the first ratchet 201c to rotate clockwise, thereby driving the second ratchet 201d, the transmission rod 201e and the drill rod 201f to rotate synchronously.

[0064] S4: Turn on the second motor 202g to drive the threaded rod 202h to rotate, and drive the support plate 102 to move downward along the L-shaped rod 202f through the internal thread block 202i, so that the drill rod 201f moves vertically downward while rotating;

[0065] S5: When encountering hard rock, shut off the second motor 202g, control the first motor 201a to rotate in the opposite direction, and squeeze the second ratchet 201d through the first ratchet 201c, so that the drill rod 201f moves vertically downward and is reset by the spring 201g, thereby achieving impact crushing;

[0066] S6: After drilling is completed, a submersible pump is placed at a predetermined depth to extract groundwater. The flow rate and pressure change are monitored with a flow meter and pressure sensor. The data is analyzed to calculate parameters such as the permeability coefficient, hydraulic conductivity and specific yield of the aquifer.

[0067] In summary, the pumping test of the submersible pump 300 can accurately calculate key hydrogeological parameters of aquifers, such as permeability coefficient, hydraulic conductivity, and specific yield. These parameters can be used to effectively assess the potential of groundwater resources and form the basis for development plans, thereby providing a scientific basis for the rational planning of groundwater resource development.

[0068] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0069] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0070] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A porous pumping test device, characterized by: Including, The bearing mechanism (100) comprises a fixed table (101) and a plurality of support plates (102) arranged outside the fixed table (101); The drilling mechanism (200) comprises a driving assembly (201) arranged on the outer surface of the support plate (102) and capable of switching different drilling modes according to different soil hardness, and a control assembly (202) arranged on the outer surface of the fixed table (101) for controlling the lifting and distance change movement of the plurality of support plates (102) and driving assemblies (201); And a plurality of submersible pumps (300) arranged outside the fixed table (101); The driving assembly (201) comprises a first motor (201a) adapted to be mounted on the top of the support plate (102), a driving column (201b) fixedly connected to the output end of the first motor (201a) through a shaft coupling, a first ratchet (201c) sleeved on the outer end surface of the driving column (201b), and a second ratchet (201d) engaged with the outer surface of the first ratchet (201c); The control assembly (202) comprises a cylinder (202a) adapted to be mounted on the bottom of the fixed table (101), a U-shaped column (202b) fixedly connected to the output end of the cylinder (202a), a connecting plate (202c) fixedly mounted on the other end of the U-shaped column (202b), and a plurality of inclined grooves (202d) arranged in a straight line array on the surface of the connecting plate (202c).

2. A porous pumping test device according to claim 1, wherein: The driving assembly (201) further comprises a transmission rod (201e) fixedly mounted on the bottom of the second ratchet (201d), a drill rod (201f) fixedly connected to the transmission rod (201e), and a spring (201g) fixedly mounted on the inner wall of the support plate (102) and cooperating with the second ratchet (201d).

3. A porous pumping test apparatus according to claim 2, wherein: A bearing sleeve matched with rotation is mounted at the connection between the driving column (201b) and the support plate (102), and the outer end surface of the spring (201g) is in sliding contact with the bottom of the second ratchet (201d); The spring (201g) is used to provide elastic support and reset for the second ratchet (201d).

4. A porous pumping test apparatus according to claim 3, wherein: The control assembly (202) further comprises a movable column (202e) movably connected to the inner wall of the inclined groove (202d), an L-shaped rod (202f) fixedly connected to the outer end surface of the movable column (202e), a second motor (202g) adapted to be mounted on the inner wall of the L-shaped rod (202f), a threaded rod (202h) fixedly connected to the output end of the second motor (202g) through a shaft coupling, and an internal thread block (202i) threadedly connected to the outer surface of the threaded rod (202h) and cooperating with the support plate (102).

5. A porous pumping test apparatus according to claim 4, wherein: The control assembly (202) further comprises a first guide rail (202j) and a second guide rail (202k) fixedly connected to the top of the two sides of the fixed table (101) respectively and cooperating with the connecting plate (202c) and the L-shaped rod (202f) respectively.

6. A porous pumping test apparatus according to claim 5, wherein: The outer end surface of the threaded rod (202h) is fixedly installed on the inner wall of the control assembly (202) through a bearing, the outer surface of the inner threaded block (202i) is in sliding contact with the inner wall of the second motor (202g), the outer surface of the inner threaded block (202i) is fixedly connected with the outer surface of the support plate (102), the bottom of the connecting plate (202c) is in sliding contact with the outer surface of the first guide rail (202j), and the L-shaped rod (202f) is slidingly sleeved on the outer surface of the second guide rail (202k).

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