Air pressure detection device and aquifer air pressure detection method

Abstract

The present invention discloses an air pressure detection device and an aquifer air pressure detection method, and relates to the field of air pressure detection equipment. The present invention includes an intelligent controller, an air pressure detection sensor, and a wire. The air pressure detection sensor is connected to the intelligent controller via the wire, and also includes a reeling and unreeling mechanism and an unreeling length detection mechanism. The reeling and unreeling mechanism can reel or unreel the wire, and the unreeling length detection mechanism can detect the unreeling length of the wire. By detecting the air pressure of the underground aquifer, data support is provided for the aeration construction of the underground aquifer, which is conducive to accurately controlling the aeration volume and preventing the aquifer from being overly high in air pressure, thereby disturbing the groundwater flow field or causing gas channeling and damaging the underground aquifer environment. Moreover, through the cooperation of the air pressure detection sensor, the linear velocity sensor, the intelligent controller, and the reeling and unreeling mechanism, the air pressure at different depths in the underground aquifer can be detected, and the depth information can be accurately matched with the air pressure information, thereby improving the air pressure detection accuracy of the underground aquifer.

Description

Technical Field

[0001] The present invention belongs to the field of air pressure detection equipment, and in particular, relates to an air pressure detection device and an aquifer air pressure detection method. Background Art

[0002] An underground aquifer refers to a rock formation below the groundwater level that is permeable and capable of supplying water. Existing technologies use aeration to promote oxidation reactions to remove pollutants, accelerate the degradation of organic pollutants, assist in aquifer reconstruction and sealing, and aid in oil and gas extraction. However, during and before the aeration process, the aquifer's air pressure must be monitored to assess its suitability and the amount of aeration. This is also crucial to prevent excessive aquifer pressure from disturbing the groundwater flow field or causing gas channeling, which could damage the aquifer's environment. Therefore, there is an urgent need for an air pressure detection device and a method for detecting aquifer air pressure to monitor aquifer air pressure. Summary of the Invention

[0003] In response to the problems in the related art, the present invention proposes an air pressure detection device and an aquifer air pressure detection method to overcome the above technical problems existing in the existing related art.

[0004] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention provides an air pressure detection device, comprising an intelligent controller, an air pressure detection sensor, and a conductor. The air pressure detection sensor is connected to the intelligent controller via the conductor. The device also comprises a reeling and unreeling mechanism and an unreeling length detection mechanism. The reeling and unreeling mechanism can reel or unreel the conductor to adjust the downward extension depth of the air pressure detection sensor at one end of the conductor. The unreeling length detection mechanism can detect the unreeling length of the conductor to determine the downward extension depth of the air pressure detection sensor.

[0006] The unwinding length detection mechanism includes a guide wheel and a linear speed sensor. The guide wheel can guide and limit the wire, and the guide wheel can rotate under the action of friction resistance when the wire is reeled and unreeled. The linear speed sensor can detect the rotation linear speed of the guide wheel and transmit the detection information to the intelligent controller.

[0007] Furthermore, it also includes a column, a base is fixedly installed at the bottom end of the column, a detection box is fixedly installed on the column, the intelligent controller, the reeling and unwinding mechanism and the unwinding length detection mechanism are all installed inside the detection box, and a box door is installed on the front side of the detection box.

[0008] Furthermore, a solar panel is fixedly installed on the top of the column, and a battery electrically connected to the solar panel is fixedly installed inside the detection box. The battery is electrically connected to the intelligent controller, the reeling mechanism and the reeling length detection mechanism respectively.

[0009] Furthermore, the reeling and winding mechanism includes a bracket, on which a wire drum is rotatably mounted, and a motor which is transmission-connected to one end of the wire drum is fixedly mounted on the side wall of the bracket, and the wire is wound on the wire drum.

[0010] Furthermore, a support is fixedly installed on one side of the bracket, a reciprocating screw is rotatably installed on the support, an optical axis guide rail located on one side of the reciprocating screw is also fixedly installed on the support, a guide block is threadedly installed on the reciprocating screw, one end of the guide block is slidably installed on the optical axis guide rail, a wire hole is provided on the guide block for the wire to pass through, and the end of the reciprocating screw is connected to the end of the wire drum by a transmission unit, so that when the wire drum rotates, the reciprocating screw can be driven to rotate synchronously by the transmission unit.

[0011] Furthermore, the transmission unit includes a transmission wheel and a driven wheel, the transmission wheel is fixedly installed on the end of the wire drum, the driven wheel is fixedly installed on the end of the reciprocating screw, and the transmission wheel and the driven wheel are connected by a transmission belt.

[0012] Furthermore, two guide wheels are provided, and the two guide wheels are arranged in parallel to clamp and guide the wire to a limit position, and support plates are rotatably installed at both ends of the two guide wheels. The linear speed sensor is fixedly installed on the support plate, and the detection end of the linear speed sensor is facing the end of the guide wheel. An opening and closing adjustment component that can adjust the distance between the two guide wheels is installed under the guide wheel.

[0013] Furthermore, the opening and closing adjustment assembly includes a guide rail, and a bidirectional screw rod is rotatably installed on both sides of the guide rail, and both ends of the bidirectional screw rod are provided with symmetrically distributed external threads, and both ends of the bidirectional screw rod are installed with a sliding seat through external thread transmission, and the sliding seat is slidably installed on the guide rail, and the support plates are fixedly installed on the top of the corresponding sliding seat, and the ends of the two bidirectional screw rods are fixedly installed with synchronous wheels, and the two synchronous wheels are connected by a synchronous belt transmission, and the ends of the bidirectional screw rods are also fixedly installed with handles.

[0014] Furthermore, a ratchet is fixedly mounted on the end of the guide wheel, one end of the ratchet is rotatably mounted on the movable friction block, a locking assembly is also mounted inside the ratchet that can be unidirectionally locked with the movable friction block during winding, and a fixed friction block is fixedly mounted on the support plate that abuts against the movable friction block;

[0015] The locking assembly includes a ratchet and a ring sleeve, the ratchet is fixedly mounted on the inner ring of the ratchet, the ring sleeve is fixedly mounted on the inner side of the movable friction block, and the outer ring of the ring sleeve is rotatably mounted with a pawl that can be unidirectionally engaged with the ratchet.

[0016] The present invention discloses a method for detecting air pressure in an aquifer, which comprises the following specific steps:

[0017] First, the wire is unwound by the reeling and winding mechanism so that the air pressure detection sensor can be continuously lowered along the detection well connected to the underground aquifer. At the same time, the guide wheel can guide and limit the unwound downward wire, and the guide wheel can rotate under the action of friction resistance when the wire is unwound. The linear speed sensor can detect the rotation linear speed of the guide wheel and transmit the detection information to the intelligent controller. The intelligent controller is provided with a formula for calculating the unwinding length. Since the guide wheel diameter is known data, the intelligent controller can calculate the lowering length of the wire according to the rotation linear speed and the guide wheel diameter, thereby obtaining the lowering depth of the air pressure detection sensor. The air pressure detection sensor continuously detects the air pressure during the lowering process to detect and obtain air pressure information at different depths.

[0018] The present invention has the following beneficial effects:

[0019] 1. In the present invention, the air pressure detection sensor is connected to the intelligent controller through a wire, and a reeling and unreeling mechanism that can reel and unreel the wire is also provided. By unreeling the wire through the reeling and unreeling mechanism, the wire can be gradually extended, so that the wire drives the air pressure detection sensor to extend and lower downward, so that the air pressure sensor is lowered into the underground aquifer, so that the air pressure of the underground aquifer can be detected, and then data support is provided for the aeration construction of the underground aquifer, which is conducive to accurately controlling the aeration volume and preventing the aquifer from having excessive air pressure and disturbing the groundwater flow field or causing gas channeling and damaging the underground aquifer environment.

[0020] 2. The present invention can guide and limit the unwinding wire by means of a guide wheel, thereby improving the stability of the wire and the air pressure detection sensor during lowering. The guide wheel can rotate under the action of frictional resistance during wire unwinding. The linear velocity sensor can detect the rotational linear velocity of the guide wheel. The intelligent controller can calculate the lowered length of the wire based on the rotational linear velocity and the guide wheel diameter, thereby determining the lowered depth of the air pressure detection sensor. The air pressure detection sensor, the linear velocity sensor, and the intelligent controller can cooperate to detect air pressure at different depths within an underground aquifer, and can accurately match depth information with air pressure information, thereby improving the accuracy of air pressure detection in the underground aquifer and facilitating accurate aeration operations in the underground aquifer. During wire reeling, the guide wheel can cooperate with the ratchet and friction block to tighten the guide so that the wire can be tightly wound around the reeling and unreeling mechanism, thereby improving the tightness of the wire reeling and further increasing the length of the wire wound around the reeling and unreeling mechanism, which is beneficial for extending the wire length and making it suitable for air pressure detection in deeper underground aquifers.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, they can also obtain drawings based on these drawings without paying any creative work.

[0023] Figure 1 This is one of the three-dimensional structural diagrams of the air pressure detection device of the present invention;

[0024] Figure 2 This is the second schematic diagram of the three-dimensional structure of the air pressure detection device of the present invention;

[0025] Figure 3 This is the third schematic diagram of the three-dimensional structure of the air pressure detection device of the present invention;

[0026] Figure 4 This is a fourth schematic diagram of the three-dimensional structure of the air pressure detection device of the present invention;

[0027] Figure 5 This is a fifth schematic diagram of the three-dimensional structure of the air pressure detection device of the present invention;

[0028] Figure 6 This is the sixth schematic diagram of the three-dimensional structure of the air pressure detection device of the present invention;

[0029] Figure 7 For the present invention Figure 6 A local enlarged structural diagram of point A;

[0030] Figure 8 For the present invention Figure 6 A schematic diagram of the partially enlarged structure at point B;

[0031] Figure 9 FIG7 is a seventh schematic diagram of the three-dimensional structure of the air pressure detection device of the present invention;

[0032] Figure 10 For the present invention Figure 9 A schematic diagram of the partially enlarged structure at point C;

[0033] Figure 11 FIG8 is an eighth schematic diagram of the three-dimensional structure of the air pressure detection device of the present invention;

[0034] Figure 12 For the present invention Figure 11 Schematic diagram of the local enlarged structure at point D.

[0035] In the figure: 1. detection box; 11. box door; 2. column; 3. base; 4. solar panel; 5. wire; 6. air pressure detection sensor; 7. intelligent controller; 8. rewinding and unwinding mechanism; 81. bracket; 82. wire drum; 83. motor; 84. guide block; 85. wire hole; 86. support; 87. reciprocating screw; 88. optical axis guide rail; 89. driven wheel; 810. transmission wheel; 811. transmission belt; 9. unwinding length detection mechanism; 91. guide wheel; 92. support plate; 93. linear speed sensor; 94. sliding seat; 95. bidirectional screw; 96. guide rail; 97. synchronous wheel; 98. synchronous belt; 99. handle; 910. ratchet; 911. movable friction block; 912. fixed friction block; 913. ratchet; 914. ring; 915. pawl. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0037] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.

[0038] Example 1

[0039] See also Figure 1-Figure 7 As shown, the present invention is an air pressure detection device, including an intelligent controller 7, an air pressure detection sensor 6 and a wire 5. The air pressure detection sensor 6 is connected to the intelligent controller 7 through the wire 5, and also includes a reeling and unreeling mechanism 8 and an unreeling length detection mechanism 9. The reeling and unreeling mechanism 8 can reel or unreel the wire 5 to adjust the downward extension depth of the air pressure detection sensor 6 at one end of the wire 5. The unreeling length detection mechanism 9 can detect the unreeling length of the wire 5 to determine the downward extension depth of the air pressure detection sensor 6; the unreeling length detection mechanism 9 includes a guide wheel 91 and a linear speed sensor 93. The guide wheel 91 can guide and limit the wire 5, and the guide wheel 91 can rotate under the action of friction resistance when the wire 5 is reeled and unreeled. The linear speed sensor 93 can detect the rotation linear speed of the guide wheel 91 and transmit the detection information to the intelligent controller 7;

[0040] Specifically, when performing aquifer pressure detection, the wire 5 is first unwound by the reeling and unwinding mechanism 8, so that the air pressure detection sensor 6 can be continuously lowered along the detection well connected to the underground aquifer. At the same time, the guide wheel 91 can guide and limit the unwound downward wire 5, and the guide wheel 91 can rotate under the action of the friction resistance when the wire 5 is unwound. The linear speed sensor 93 can detect the rotation linear speed of the guide wheel 91 and transmit the detection information to the intelligent controller 7. The intelligent controller 7 is provided with a formula for calculating the unwinding length. Since the diameter of the guide wheel 91 is known data, the intelligent controller 7 can calculate the lowering length of the wire 5 according to the rotation linear speed and the diameter of the guide wheel 91, thereby obtaining the lowering depth of the air pressure detection sensor 6. The air pressure detection sensor 6 continuously detects the air pressure during the lowering process to detect and obtain air pressure information at different depths.

[0041] By detecting the air pressure of the underground aquifer, data support is provided for the aeration construction of the underground aquifer, which is conducive to accurately controlling the aeration volume and preventing the excessive air pressure in the aquifer from disturbing the groundwater flow field or causing gas channeling and damaging the underground aquifer environment. In addition, through the cooperation of the air pressure detection sensor 6, the linear speed sensor 93, the intelligent controller 7, and the reeling and unreeling mechanism 8, the air pressure at different depths in the underground aquifer can be detected, and the depth information can be accurately matched with the air pressure information, thereby improving the air pressure detection accuracy of the underground aquifer and providing more accurate data support for the aeration construction of the underground aquifer.

[0042] Furthermore, a counterweight rod is installed at one end of the wire 5 connected to the air pressure detection sensor 6, so that when the wire 5 is unwound, the counterweight rod can drive the air pressure detection sensor 6 to be stably lowered to perform air pressure detection.

[0043] Example 2

[0044] See also Figure 1-Figure 5As shown, the difference between this embodiment and the above embodiment is that it further includes a column 2, a base 3 is fixedly installed at the bottom end of the column 2, a detection box 1 is fixedly installed on the column 2, an intelligent controller 7, a reeling and unreeling mechanism 8 and an unreeling length detection mechanism 9 are all installed inside the detection box 1, and a box door 11 is installed on the front side of the detection box 1; a solar power generation panel 4 is fixedly installed on the top end of the column 2, and a battery electrically connected to the solar power generation panel 4 is fixedly installed inside the detection box 1, and the battery is electrically connected to the intelligent controller 7, the reeling and unreeling mechanism 8 and the unreeling length detection mechanism 9 respectively;

[0045] The green energy of the solar panel 4 is used to power various mechanisms in the detection device, which not only saves energy and reduces emissions, but also makes it convenient for the detection device to be used in places where it is impossible to connect to the mains in the wild. By installing the intelligent controller 7, the reeling and unwinding mechanism 8 and the unwinding length detection mechanism 9 inside the detection box 1, the intelligent controller 7, the reeling and unwinding mechanism 8 and the unwinding length detection mechanism 9 can be protected by the detection box 1, so as to facilitate the installation and use of the detection device outdoors.

[0046] Example 3

[0047] See also Figure 2 、 Figure 6 、 Figure 8 、 Figure 9 As shown, the difference between this embodiment and the above embodiment is that the reeling and unreeling mechanism 8 includes a bracket 81, on which a wire drum 82 is rotatably mounted, and a motor 83 connected to one end of the wire drum 82 is fixedly mounted on the side wall of the bracket 81, and the wire 5 is wound on the wire drum 82; a support 86 is fixedly mounted on one side of the bracket 81, on which a reciprocating screw rod 87 is rotatably mounted, and an optical axis guide rail 88 located on one side of the reciprocating screw rod 87 is also fixedly mounted on the support 86, and a guide block 84 is threadedly mounted on the reciprocating screw rod 87, and the guide block 84 is fixedly mounted. One end of the guide block 84 is slidably mounted on the optical axis guide rail 88, and a wire hole 85 is provided on the guide block 84 for the wire 5 to pass through. The end of the reciprocating screw rod 87 is connected to the end of the wire drum 82 by a transmission unit, so that when the wire drum 82 rotates, the reciprocating screw rod 87 can be driven to rotate synchronously by the transmission unit; the transmission unit includes a transmission wheel 810 and a driven wheel 89, the transmission wheel 810 is fixedly mounted on the end of the wire drum 82, and the driven wheel 89 is fixedly mounted on the end of the reciprocating screw rod 87, and the transmission belt 811 is used to connect the transmission wheel 810 and the driven wheel 89;

[0048] During air pressure detection, the motor 83 drives the wire drum 82 to rotate and unwind, so that the wire 5 is gradually unwound and extended. At this time, the wire 5 is pulled downward by the gravity of the air pressure detection sensor 6 and the counterweight rod at the end, so that the air pressure detection sensor 6 and the counterweight rod can continue to move downward to detect the air pressure of the underground aquifer; and when it is necessary to adjust and reduce the detection depth or to reel the wire 5, the motor 83 drives the wire drum 82 to rotate in the opposite direction to rewind. At this time, the wire drum 82 is driven by the transmission wheel 810, the driven wheel 89 and the transmission belt 811. The transmission cooperates to drive the reciprocating screw rod 87 to rotate, and when the reciprocating screw rod 87 rotates, it can drive the guide block 84 to move back and forth along the reciprocating screw rod 87 and the optical axis guide rail 88 through the threaded transmission, so that the guide block 84 drives the wire 5 to move back and forth along the wire drum 82, so that the wire 5 can be evenly wound on the wire drum 82, thereby improving the winding uniformity of the wire 5 on the wire drum 82, and at the same time helping to increase the winding length of the wire 5 on the wire drum 82, thereby helping to increase the overall length of the wire 5, and facilitating air pressure detection of deeper underground aquifers.

[0049] Example 4

[0050] See also Figure 2-Figure 7 As shown, the difference between this embodiment and the above embodiment is that two guide wheels 91 are provided, and the two guide wheels 91 are arranged in parallel to clamp the wire 5 for guiding and limiting, and support plates 92 are rotatably installed at both ends of the two guide wheels 91, and a linear speed sensor 93 is fixedly installed on the support plate 92, and the detection end of the linear speed sensor 93 is facing the end of the guide wheel 91, and an opening and closing adjustment component that can adjust the distance between the two guide wheels 91 is installed below the guide wheel 91; the opening and closing adjustment component includes a guide rail 96, and a bidirectional screw rod 95 is rotatably installed on both sides of the guide rail 96, and the two ends of the bidirectional screw rod 95 are provided with symmetrically distributed external threads, and the two ends of the bidirectional screw rod 95 are threadedly installed with a sliding seat 94 through the external thread, and the sliding seat 94 is slidably installed on the guide rail 96, and the support plates 92 are fixedly installed on the top of the corresponding sliding seat 94, and the ends of the two bidirectional screw rods 95 are fixedly installed with synchronous wheels 97, and the two synchronous wheels 97 are connected by a synchronous belt 98, and the ends of the bidirectional screw rod 95 are also fixedly installed with handles 99;

[0051] The two guide wheels 91 are used to clamp and limit the wire 5, which can improve the limiting effect of the wire 5, so that the wire 5 can be stably lowered or pulled up when winding and unwinding. The two guide wheels 91 cooperate to clamp the wire 5, which can increase the friction resistance between the guide wheels 91 and the wire 5, so as to ensure that the friction resistance when the wire 5 moves can drive the guide wheels 91 to rotate, thereby improving the detection accuracy of the length of the wire 5 to be wound up and unwound. The spacing between the two guide wheels 91 can be adjusted by the opening and closing adjustment component according to the diameter of the wire 5, so that the clamping force of the two guide wheels 91 on the wire 5 is in an appropriate state, preventing the guide wheels 91 from clamping the wire 5 too tightly and affecting the normal movement of the wire 5. At the same time, it also prevents the wire 5 from being clamped too loosely, resulting in too little friction resistance between the wire 5 and the guide wheels 91, thereby making it impossible for the friction resistance to drive the guide wheels 91 to rotate synchronously when the wire 5 moves.

[0052] Specifically, when adjusting the gap, the handle 99 is rotated to drive the bidirectional screw rod 95 to rotate. At the same time, the bidirectional screw rod 95 drives another bidirectional screw rod 95 to rotate synchronously through the transmission of the synchronous wheel 97 and the synchronous belt 98. When the bidirectional screw rod 95 rotates, the sliding seats 94 at both ends are driven by the external threads symmetrically distributed at both ends to move toward each other or move in the opposite direction to open along the guide rail 96, and then the two guide wheels 91 are driven to move toward each other or move in the opposite direction to open through the two groups of sliding seats 94, thereby adjusting the gap between the two guide wheels 91.

[0053] Example 5

[0054] See also Figures 9-12 As shown, the difference between this embodiment and the above embodiment is that a ratchet 910 is fixedly mounted on the end of the guide wheel 91, one end of the ratchet 910 is rotatably mounted on the movable friction block 911, and a locking assembly is further mounted inside the ratchet 910, which can be unidirectionally engaged and locked with the movable friction block 911 during winding, and a fixed friction block 912 is fixedly mounted on the support plate 92 to abut against the movable friction block 911; the locking assembly includes a ratchet 913 and a ring sleeve 914, the ratchet 913 is fixedly mounted on the inner ring of the ratchet 910, the ring sleeve 914 is fixedly mounted on the inner side of the movable friction block 911, and the outer ring of the ring sleeve 914 is rotatably mounted with a pawl 915 that can be unidirectionally engaged with the ratchet 913;

[0055] When the wire 5 is unwound and lowered, the guide wheel 91 is driven to rotate, and the guide wheel 91 drives the ratchet 910 to rotate. At this time, the ratchet teeth 913 inside the ratchet 910 can rotate past the pawl 915, so that the ratchet 910 and the movable friction block 911 are in an unlocked state. Therefore, the friction resistance between the movable friction block 911 and the fixed friction block 912 does not hinder the rotation and guidance of the guide wheel 91, so that the wire 5 can be lowered normally.

[0056] When the wire 5 is wound up and pulled up, the guide wheel 91 drives the ratchet 910 and the ratchet teeth 913 to rotate in the opposite direction. At this time, the ratchet teeth 913 are locked with the pawl 915, so that when the ratchet 910 rotates, the ring sleeve 914 and the movable friction block 911 are driven to rotate synchronously, so that the movable friction block 911 rotates relative to the fixed friction block 912, thereby limiting the guide wheel 91 by the friction resistance when the movable friction block 911 rotates relative to the fixed friction block 912, thereby increasing the friction resistance when the guide wheel 91 rotates, and then the wire 5 is tightened by the clamping of the two guide wheels 91, so that the wire 5 can be tightly wound on the wire drum 82, thereby improving the tightness of the wire 5 winding, and further increasing the length of the wire 5 wound on the wire drum 82, which is beneficial to extending the overall length of the wire 5, so that it is suitable for air pressure detection of deep underground aquifers;

[0057] Furthermore, the friction resistance between the movable friction block 911 and the fixed friction block 912 is smaller than the friction resistance between the wire 5 and the guide wheel 91, so that when the wire 5 is wound up and pulled up, the friction resistance between the movable friction block 911 and the fixed friction block 912 can be overcome to drive the guide wheel 91 to rotate, and then the linear speed sensor 93 detects the rotation linear speed of the guide wheel 91, so that the winding length of the wire 5 can also be detected when the wire 5 is wound up, so as to determine the remaining unwinding length of the wire 5 and the lowering depth of the air pressure detection sensor 6, thereby accurately detecting the air pressure at different depths.

[0058] Example 6

[0059] This embodiment discloses a method for detecting air pressure in an aquifer, and the specific steps are as follows:

[0060] First, the wire 5 is unwound by the reeling and winding mechanism 8 so that the air pressure detection sensor 6 can be continuously lowered along the detection well connected to the underground aquifer. At the same time, the guide wheel 91 can guide and limit the unwound downward wire 5, and the guide wheel 91 can rotate under the action of the friction resistance when the wire 5 is unwound. The linear speed sensor 93 can detect the rotation linear speed of the guide wheel 91 and transmit the detection information to the intelligent controller 7. The intelligent controller 7 is provided with a formula for calculating the unwinding length. Since the diameter of the guide wheel 91 is known data, the intelligent controller 7 can calculate the lowering length of the wire 5 according to the rotation linear speed and the diameter of the guide wheel 91, thereby obtaining the lowering depth of the air pressure detection sensor 6. The air pressure detection sensor 6 continuously detects the air pressure during the lowering process to detect and obtain air pressure information at different depths.

[0061] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0062] The preferred embodiments of the invention disclosed above are intended only to help illustrate the invention. These preferred embodiments do not exhaust all details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. An air pressure detection device, comprising an intelligent controller, an air pressure detection sensor, and a wire, wherein the air pressure detection sensor is connected to the intelligent controller via the wire, and characterized in that: The device also includes a reeling and unreeling mechanism and an unreeling length detection mechanism. The reeling and unreeling mechanism can reel or unreel the wire to adjust the downward extension depth of the air pressure detection sensor at one end of the wire. The unreeling length detection mechanism can detect the unreeling length of the wire to determine the downward extension depth of the air pressure detection sensor. The unwinding length detection mechanism includes a guide wheel and a linear speed sensor. The guide wheel can guide and limit the wire, and the guide wheel can rotate under the friction resistance when the wire is reeled and unreeled. The linear speed sensor can detect the rotation linear speed of the guide wheel and transmit the detection information to the intelligent controller. There are two guide wheels, which are arranged in parallel to clamp the wire and guide it to a limited position. Support plates are rotatably installed at both ends of the two guide wheels. The linear velocity sensor is fixedly installed on the support plate, and the detection end of the linear velocity sensor is facing the end of the guide wheel. An opening and closing adjustment component that can adjust the distance between the two guide wheels is installed under the guide wheel. The opening and closing adjustment assembly includes a guide rail, and a bidirectional screw rod is rotatably installed on both sides of the guide rail. Both ends of the bidirectional screw rod are provided with symmetrically distributed external threads, and both ends of the bidirectional screw rod are installed with a sliding seat through the external thread thread transmission. The sliding seat is slidably installed on the guide rail, and the support plates are fixedly installed on the top of the corresponding sliding seat. The ends of the two bidirectional screw rods are fixedly installed with synchronous wheels, and the two synchronous wheels are connected by a synchronous belt transmission. The ends of the bidirectional screw rods are also fixedly installed with handles. A ratchet is fixedly mounted on the end of the guide wheel, one end of the ratchet is rotatably mounted on the movable friction block, and a locking assembly is also installed inside the ratchet that can be one-way locked with the movable friction block during winding. A fixed friction block that abuts against the movable friction block is fixedly mounted on the support plate; The locking assembly includes a ratchet and a ring sleeve. The ratchet is fixedly installed on the inner ring of the ratchet wheel, the ring sleeve is fixedly installed on the inner side of the movable friction block, and the outer ring of the ring sleeve is rotatably installed with a pawl that can be unidirectionally engaged with the ratchet.

2. An air pressure detection device according to claim 1, characterized in that: It also includes a column, a base is fixedly installed at the bottom end of the column, a detection box is fixedly installed on the column, the intelligent controller, the reeling and unreeling mechanism and the unreeling length detection mechanism are all installed inside the detection box, and a box door is installed on the front side of the detection box.

3. The air pressure detection device according to claim 2, characterized in that: A solar panel is fixedly mounted on the top of the column, and a battery electrically connected to the solar panel is fixedly mounted inside the detection box. The battery is electrically connected to the intelligent controller, the reeling and unreeling mechanism, and the unreeling length detection mechanism respectively.

4. The air pressure detection device according to claim 2, characterized in that: The reeling and winding mechanism includes a bracket, on which a wire drum is rotatably mounted. A motor transmission-connected to one end of the wire drum is also fixedly mounted on the side wall of the bracket, and the wire is wound on the wire drum.

5. The air pressure detection device according to claim 4, characterized in that: A support is fixedly installed on one side of the bracket, and a reciprocating screw is rotatably installed on the support. An optical axis guide rail located on one side of the reciprocating screw is also fixedly installed on the support. A guide block is threadedly installed on the reciprocating screw, and one end of the guide block is slidably installed on the optical axis guide rail. A wire hole for the wire to pass through is provided on the guide block, and the end of the reciprocating screw is connected to the end of the wire drum through a transmission unit, so that when the wire drum rotates, the reciprocating screw can be driven to rotate synchronously through the transmission unit.

6. The air pressure detection device according to claim 5, characterized in that: The transmission unit includes a transmission wheel and a driven wheel. The transmission wheel is fixedly installed on the end of the wire drum, and the driven wheel is fixedly installed on the end of the reciprocating screw rod. The transmission wheel and the driven wheel are connected by a transmission belt.

7. A method for detecting air pressure in an aquifer, using an air pressure detection device according to any one of claims 1 to 6, characterized in that: The specific steps are: First, the wire is unwound by the reeling and winding mechanism so that the air pressure detection sensor can be continuously lowered along the detection well connected to the underground aquifer. At the same time, the guide wheel can guide and limit the unwound downward wire, and the guide wheel can rotate under the action of friction resistance when the wire is unwound. The linear speed sensor can detect the rotation linear speed of the guide wheel and transmit the detection information to the intelligent controller. The intelligent controller is provided with a formula for calculating the unwinding length. Since the guide wheel diameter is known data, the intelligent controller can calculate the lowering length of the wire according to the rotation linear speed and the guide wheel diameter, thereby obtaining the lowering depth of the air pressure detection sensor. The air pressure detection sensor continuously detects the air pressure during the lowering process to detect and obtain air pressure information at different depths.

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