A portable comprehensive monitoring data measuring instrument for groundwater level and water temperature

Abstract

The present invention relates to a portable comprehensive monitoring data measuring instrument for groundwater level and water temperature, which comprises a box body and a monitoring unit. The monitoring unit includes a buoyancy plate. At both ends of the buoyancy plate in the thickness direction, there are a first centroid point and a second centroid point. At both ends of the buoyancy plate in the height direction, there are a third centroid point and a fourth centroid point. A first guiding chute is connected between the first centroid point and the third centroid point. A second guiding chute is connected between the second centroid point and the fourth centroid point. A first sliding rod that is in guiding movement cooperation with the first guiding chute is provided at the lower end of the connecting line. A second sliding rod is assembled on the second guiding chute in a guiding movement manner. A counterweight is connected to the second sliding rod through a suspension rope. A buoyancy plate storage groove with the notch facing downwards for accommodating the buoyancy plate in the storage position is provided at the bottom of the box body. The present invention provides a portable comprehensive monitoring data measuring instrument for groundwater level and water temperature that is convenient to carry, in which the monitoring unit can be stored in the box body.

Description

Technical Field

[0001] The invention relates to groundwater data monitoring equipment, in particular to a portable groundwater level and water temperature comprehensive monitoring data measuring instrument. Background Art

[0002] Groundwater is an important component of water resources. Due to its stable water volume and good water quality, it is one of the important water sources for agricultural irrigation, industry, mining and cities. Well water and spring water are the most commonly used groundwater in our daily life. Due to excessive exploitation and unreasonable use of groundwater over the years, the groundwater level often drops seriously. In order to monitor the groundwater resources in the area, monitoring wells are usually set up to monitor the groundwater through parameters such as the liquid level height and water temperature of the wells.

[0003] When monitoring groundwater, it is necessary to use a water level and water temperature comprehensive monitoring data measuring instrument. Existing water level and water temperature monitoring data measuring instruments are such as the "groundwater level and water temperature monitoring device for hydrological research" disclosed in Chinese patent CN216348836U. The water level and water temperature monitoring device includes a box body, a data display is provided on the box body, a take-up wheel is provided on the top of the box body, a connecting line is provided on one side of the box body, and a sensing rod is provided at one end of the connecting line. The sensing rod can also be called a monitoring unit. The sensing rod is used to measure the water level and water temperature.

[0004] When in use, the sensor rod is lowered to the specified depth of the monitoring well through the connecting wire, and the sensor rod detects the water level and water temperature, which are displayed on the data display on the box. The existing water level and water temperature monitoring device has the following problems: after the monitoring is finished, the sensor rod needs to be retracted through the connecting wire, but the sensor rod cannot be retracted into the box, that is, the sensor rod and the protective mechanism are located outside the box, which is not very convenient to carry. Summary of the invention

[0005] The object of the present invention is to provide a portable groundwater level and water temperature comprehensive monitoring data measuring instrument which is easy to carry and has a monitoring unit which can be stored in a box.

[0006] In order to solve the above technical problems, the technical solution of a portable groundwater level and water temperature comprehensive monitoring data measuring instrument in the present invention is as follows:

[0007] A portable comprehensive monitoring data measuring instrument for groundwater level and water temperature, comprising a box body and a monitoring unit connected to the box body through a connecting line. The monitoring unit includes a buoyancy plate with a height greater than the width and a width greater than the thickness. A water temperature sensor and a water level sensor are arranged on the buoyancy plate. At both ends in the thickness direction of the buoyancy plate, there are a first centroid point and a second centroid point. At both ends in the height direction of the buoyancy plate, there are a third centroid point and a fourth centroid point. The connection line between the first centroid point and the second centroid point passes through the centroid of the buoyancy plate. The connection line between the third centroid point and the fourth centroid point passes through the centroid of the buoyancy plate. A first guiding chute is connected between the first centroid point and the third centroid point, and a second guiding chute is connected between the second centroid point and the fourth centroid point. The lower end of the connecting line is provided with a first sliding rod that is in guiding movement cooperation with the first guiding chute. A second sliding rod is assembled on the second guiding chute for guiding movement. A counterweight is connected to the second sliding rod through a suspension rope. The buoyancy plate has a monitoring position under the water surface, which is turned to extend in the up-and-down direction along the height direction under the action of the counterweight, and the buoyancy plate also has a storage position floating on the water surface, which is turned to extend in the up-and-down direction along the thickness direction under its own buoyancy. A buoyancy plate storage groove for accommodating the buoyancy plate in the storage position is arranged at the bottom of the box body.

[0008] Further, the first guiding chute penetrates through the buoyancy plate along the width direction of the buoyancy plate, and the second guiding chute penetrates through the buoyancy plate along the width direction of the buoyancy plate. Both ends of the first sliding rod pass out from both sides of the first guiding chute, and the lower end of the connecting line is connected to both ends of the first sliding rod. Both ends of the second sliding rod pass out from both sides of the second guiding chute, and the upper end of the suspension rope is connected to both ends of the second sliding rod.

[0009] Further, the first guiding chute and the second guiding chute are centrally symmetrically distributed with the centroid of the buoyancy plate as the center. The first guiding chute includes a straight line segment connected to the first centroid point and extending along the height direction of the buoyancy plate and an arc segment connected between the straight line segment and the third centroid point.

[0010] Further, both the first sliding rod and the second sliding rod are square rods. The first sliding rod is in non-rotating cooperation with the first guiding chute, and the second sliding rod is in non-rotating cooperation with the second guiding chute.

[0011] Further, a reel driven by a motor is arranged on the right side of the buoyancy plate storage groove in the box body. The upper end of the connecting line is wound around the corresponding reversing pulley and then wound on the reel.

[0012] Further, the water temperature sensor and the water level sensor are arranged on opposite sides of the buoyancy plate, and the water level sensor is located below the water temperature sensor.

[0013] Further, the buoyancy board is made of metal or plastic. A first buoyancy chamber is arranged inside the buoyancy board on one side of the line connecting the first centroid point and the second centroid point. The volume of the buoyancy board on the side of the line connecting the first centroid point and the second centroid point close to the third centroid point is larger than the volume of the buoyancy board on the side of the line connecting the first centroid point and the second centroid point close to the fourth centroid point.

[0014] Further, a second buoyancy chamber is arranged inside the buoyancy board on the other side of the line connecting the first centroid point and the second centroid point. The first buoyancy chamber is close to the third centroid point, and the second buoyancy chamber is close to the fourth centroid point. The volume of the first buoyancy chamber is larger than the volume of the second buoyancy chamber.

[0015] Further, a first return spring for forcing the first sliding rod to move towards the first centroid point is arranged inside the first guiding chute, and a second return spring for forcing the second sliding rod to move towards the second centroid point is arranged inside the second guiding chute.

[0016] Further, a resistance board is hinged to the buoyancy board. The resistance board and the first guiding chute are located on opposite sides of the buoyancy board. A resistance board tension spring is arranged between the resistance board and the buoyancy board. One end of the resistance board close to the third centroid point is connected to the buoyancy board, and the other end of the resistance board gradually deviates away from the buoyancy board.

[0017] The beneficial effects of the present invention are as follows: In the present invention, when the buoyancy board is in the storage position, its thickness extends in the up and down direction. Therefore, the depth requirement for the buoyancy board storage groove can be reduced, and thus the thickness requirement for the box body can be reduced. Usually, the buoyancy board is stored in the buoyancy board storage groove. The entire portable comprehensive groundwater level and water temperature monitoring data measuring instrument is convenient to carry. When it is necessary to monitor the water level and water temperature in the monitoring well, the entire device is moved to the upper side of the monitoring well, and the buoyancy board is lowered. When the counterweight and the buoyancy board are lowered below the water surface, under the action of the counterweight, the second sliding rod moves to the position of the fourth centroid point, and the first sliding rod moves to the position of the third centroid point. At this time, the buoyancy board is in the monitoring position, and the water temperature sensor and the water level sensor can detect the water temperature and the water level. After the detection is completed, the buoyancy board is lifted. When the buoyancy board reaches the water surface, under the action of its own buoyancy, the buoyancy board automatically flips to the storage position with its thickness extending in the up and down direction. At this time, the first sliding rod moves to the first centroid point, and the second sliding rod moves to the second centroid point. The line connecting the first centroid point and the second centroid point passes through the centroid of the buoyancy board. Therefore, the buoyancy board can be stably lifted to the buoyancy board storage groove in the storage position attitude. This device is not only convenient to carry, but also convenient for lowering and lifting the buoyancy board. Description of the Drawings

[0018] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present disclosure will become readily understandable. In the drawings, several embodiments of the present disclosure are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals denote the same or corresponding parts, wherein:

[0019] Figure 1 is a schematic diagram of the state when the buoyancy plate and the counterweight are underwater in an embodiment of the present invention;

[0020] Figure 2 is Figure 1 a side view of the buoyancy plate and the counterweight in;

[0021] Figure 3 is Figure 1 a schematic diagram of the state when the buoyancy plate is on the water surface and the counterweight is underwater in;

[0022] Figure 4 is Figure 3 a schematic diagram of the state after the buoyancy plate is retracted into the buoyancy plate receiving groove after the buoyancy plate is further lifted in;

[0023] Figure 5 is Figure 1 an enlarged view of part A in;

[0024] Figure 6 is Figure 1 a schematic diagram of the structure of the buoyancy plate in;

[0025] Description of reference numerals: 1, connecting line; 2, first sliding rod; 3, first guiding chute; 4, first centroid point; 5, buoyancy plate; 6, water level sensor; 7, second sliding rod; 8, suspension rope; 9, counterweight; 10, second guiding chute; 11, second buoyancy chamber; 12, second centroid point; 13, resistance plate; 14, water temperature sensor; 15, first buoyancy chamber; 16, resistance plate tension spring; 17, third centroid point; 18, fourth centroid point; 19, water surface; 20, first return spring; 21, second return spring; 22, buoyancy plate receiving groove; 23, reversing pulley; 24, drum; 25, buoyancy plate receiving groove; 26, box body; 27, straight segment; 28, arc segment. Detailed implementation manners

[0026] For the convenience of understanding the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present invention more thorough and comprehensive.

[0027] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit the invention.

[0028] An embodiment of a portable integrated groundwater level and water temperature detection data measuring instrument in the present invention is as Figures 1 to 6 shown:

[0029] It includes a box body 26 and a monitoring unit connected to the box body through a connecting line 1. A battery and a data display screen are arranged on the box body 26. During use, the box body 26 is placed on the upper side of a monitoring well. The monitoring unit includes a buoyancy plate 5 with a height greater than the width and a width greater than the thickness. A water temperature sensor 14 and a water level sensor 6 are arranged on the buoyancy plate 5. In this embodiment, the water level sensor 6 is a hydraulic sensor, which calculates the water level depth by measuring the water pressure at the corresponding position.

[0030] The connecting line 1 includes a signal line, a power line connected to the water temperature sensor and the water level sensor, and a pull rope connected to the box body. The water temperature data and water level data measured by the water temperature sensor and the water level sensor can be displayed on the data display screen. Since the data measuring instrument in the present invention can realize the monitoring of the groundwater level and water temperature, this data measuring instrument can be called an integrated groundwater level and water temperature monitoring data measuring instrument.

[0031] Preferably, the buoyancy plate 5 is made of plastic material (or metal material). Both side surfaces in the thickness direction and both side surfaces in the width direction of the buoyancy plate are plane structures, and both side surfaces in the height direction of the buoyancy plate are arc surface structures.

[0032] Both ends in the thickness direction of the buoyancy plate have a first centroid point 4 and a second centroid point 12, and both ends in the height direction of the buoyancy plate have a third centroid point 17 and a fourth centroid point 18. The connection line of the first centroid point and the second centroid point passes through the centroid of the buoyancy plate, and the connection line of the third centroid point and the fourth centroid point passes through the centroid of the buoyancy plate. In this embodiment, the centroid can also be equivalent to the center of gravity.

[0033] In this embodiment, the volume of the buoyancy plate on the side of the connection line of the first centroid point and the second centroid point close to the third centroid point is larger than the volume of the buoyancy plate on the side of the connection line of the first centroid point and the second centroid point close to the fourth centroid point.

[0034] A first buoyancy chamber 15 is provided inside the buoyancy plate on one side of the line connecting the first centroid point and the second centroid point. A second buoyancy chamber 11 is provided inside the buoyancy plate on the other side of the line connecting the first centroid point and the second centroid point. The first buoyancy chamber is close to the third centroid point, and the second buoyancy chamber is close to the fourth centroid point. The volume of the first buoyancy chamber is larger than that of the second buoyancy chamber. Specifically, the second buoyancy chamber is composed of four independent cavities, and the first buoyancy chamber is composed of three independent cavities. The volume of one of the cavities in the first buoyancy chamber is larger than the sum of the volumes of two of the cavities in the second buoyancy chamber, and the volumes of the remaining two cavities in the first buoyancy chamber are respectively the same as the volumes of the remaining two cavities in the second buoyancy chamber.

[0035] A first guiding chute 3 communicates between the first centroid point and the third centroid point, and a second guiding chute 10 communicates between the second centroid point and the fourth centroid point. The first guiding chute 3 and the second guiding chute 10 are centrosymmetrically distributed with the centroid of the buoyancy plate as the center. The first guiding chute includes a straight segment 27 connected to the first centroid point and extending along the height direction of the buoyancy plate and an arc segment 28 connected between the straight segment and the third centroid point.

[0036] The first guiding chute penetrates through the buoyancy plate 5 along the width direction of the buoyancy plate, and the second guiding chute penetrates through the buoyancy plate along the width direction of the buoyancy plate.

[0037] A first sliding rod 2 that is in guiding and moving cooperation with the first guiding chute is fixed to the lower end of the connecting line. The upper end of the second guiding chute is recessed for movably assembling a second sliding rod 7, and a counterweight 9 is connected to the second sliding rod through a suspension rope 8. Specifically, both ends of the first sliding rod 2 pass through both sides of the first guiding chute 3, and the lower end of the connecting line is connected to both ends of the first sliding rod. Both ends of the second sliding rod 7 pass through both sides of the second guiding chute 10, and the upper end of the suspension rope 8 is connected to both ends of the second sliding rod.

[0038] The buoyancy plate has a monitoring station that is turned over under the action of the counterweight and extends along the up-and-down direction in the height direction on the lower side of the water surface. The buoyancy plate also has a storage station that floats on the water surface and turns over and extends along the up-and-down direction in the thickness direction under its own buoyancy. A buoyancy plate storage groove 25 with a downward-facing notch is provided at the bottom of the box body for accommodating the buoyancy plate in the storage station.

[0039] In this embodiment, the cross-sections of the first sliding rod and the second sliding rod are both square structures. Therefore, the first sliding rod and the second sliding rod are both square rods. The first sliding rod is in non-rotating cooperation with the first guiding chute, and the second sliding rod is in non-rotating cooperation with the second guiding chute.

[0040] Inside the box body, a reel 24 driven by a motor is arranged on the right side of the buoyancy plate storage groove, and the upper end of the connecting line is wound around the reel after passing through the corresponding reversing pulley 23. In this embodiment, the motor is a servo motor with controllable speed. There are two reversing pulleys, which are arranged at intervals left and right, and the axis of each reversing pulley extends in the front-rear direction.

[0041] The water temperature sensor and the water level sensor are arranged on opposite sides of the buoyancy plate. The water level sensor is located below the water temperature sensor. When the buoyancy plate is in the monitoring station, the water level sensor is located below the first guiding chute, and the water temperature sensor is located above the second guiding chute. With this arrangement, the water level sensor avoids the first guiding chute, and the water temperature sensor avoids the second guiding chute. Moreover, the water temperature sensor and the water level sensor are located on opposite sides of the buoyancy plate, which is beneficial to the weight balance on both sides of the buoyancy plate. Also, the water level sensor is more sensitive to depth, so its position is lower, making it easier to measure the water depth. And within the height difference range between the water temperature sensor and the water level sensor, the water temperature is basically the same. Therefore, it doesn't matter if the position of the water temperature sensor is a bit higher.

[0042] A first return spring for forcing the first sliding rod to move towards the first centroid point is arranged in the first guiding chute, and a second return spring for forcing the second sliding rod to move towards the second centroid point is arranged in the second guiding chute.

[0043] A resistance plate is hinged on the buoyancy plate. The resistance plate and the first guiding chute are located on opposite sides of the buoyancy plate. A resistance plate tension spring is arranged between the resistance plate and the buoyancy plate. One end of the resistance plate near the third centroid point is connected to the buoyancy plate, and the other end of the resistance plate gradually deviates away from the buoyancy plate.

[0044] During use, such as Figure 4As shown, during the transportation and carrying process, the buoyancy board is stored in the buoyancy board storage slot, which is relatively portable. The counterweight is smaller in size than the buoyancy board and does not affect carrying. At this time, the first slide bar is at the first center of mass point position, and the second slide bar is at the second center of mass point position. The thickness of the buoyancy board is extended in the up and down directions, so the depth requirement of the buoyancy board storage slot is relatively small, and the height dimension of the box can be reduced as much as possible. The buoyancy board is stored in the buoyancy board storage slot, and the entire measuring instrument equipment is easy to carry. When it is necessary to detect the water level and water temperature of the monitoring well, the measuring instrument is transported to the upper side of the monitoring well, and two support arms are set at the upper end of the wellhead of the monitoring well. The box of the dynamometer is placed on the two manufactured arms, and the buoyancy board can pass through the gap between the two manufactured arms. Then lower the buoyancy board. As the buoyancy board is lowered, it gradually reaches the water surface. As the buoyancy board continues to be lowered, it will completely enter the water. In the process of lowering the buoyancy board from the water surface, since the volume of the right side of the buoyancy board is greater than the volume of the left side of the buoyancy board, when the buoyancy board just enters the water, the buoyancy of the right end of the buoyancy board is greater than the buoyancy of the left end of the buoyancy board. In this way, the buoyancy board will appear in an inclined posture with the right side higher and the left side lower. Under the downward pull of the gravity of the counterweight, the second slide bar will overcome the force of the second return spring and move toward the fourth center of mass, and the first slide bar will overcome the force of the first return spring and move toward the third center of mass, until the buoyancy board is in the water. Figure 1 At this time, the first slide bar moves to the third center of mass point, and the second slide bar moves to the fourth center of mass point. The third and fourth center of mass points pass through the center of mass of the buoyancy board, so that the buoyancy board, the connecting line and the counterweight reach a balanced posture, which can stably realize the measurement of water level and water temperature; when the water temperature and water level measurement are completed, the buoyancy board is lifted through the connecting line. During the lifting process of the buoyancy board, due to the resistance of the water, the water stretches the resistance board, so the buoyancy board will be in an inclined posture (the buoyancy board will not open during the downward process, and the downward resistance generated by the buoyancy board is very small and can be ignored). When the buoyancy board reaches the water surface, the buoyancy board will flip over relative to the right end due to its own buoyancy problem until it is stored in a horizontal posture, such as Figure 3 As shown, at this time, under the combined action of the buoyancy board flipping force and the corresponding reset spring, the first slide bar moves to the first center of mass position, and the second slide bar moves to the second center of mass position. As the connecting line continues to rise, the buoyancy board is stored in the buoyancy board storage slot in the storage position. Item 19 in the figure represents the water surface of the monitoring well.

[0045] The present invention utilizes the combined effect of buoyancy and a counterweight to skillfully realize the automatic conversion of the buoyancy board between a vertical posture and a horizontal posture, and can conveniently realize the storage of the buoyancy board without human intervention.

[0046] In the above description of this specification, unless otherwise clearly specified and defined, terms such as "fix", "install", "connect" or "couple" should be understood in a broad sense. For example, for the term "connect", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the communication inside two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0047] According to the above description of this specification, those skilled in the art can also understand the terms used as follows. For example, terms indicating orientation or positional relationships such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "transverse", "clockwise" or "counterclockwise" are based on the orientation or positional relationships shown in the drawings of this specification. They are only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operate in the specific orientation. Therefore, the above terms of orientation or positional relationships cannot be understood or interpreted as limitations on the solution of the present invention.

[0048] In addition, terms such as "first" or "second" used in this specification to refer to numbers or ordinals are only for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, "a plurality of" means at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A portable comprehensive monitoring data measuring instrument for groundwater level and water temperature, comprising a box body and a monitoring unit connected to the box body through a connecting line, characterized in that: The monitoring unit includes a buoyancy plate with a height greater than its width and a width greater than its thickness. A water temperature sensor and a water level sensor are arranged on the buoyancy plate. At both ends in the thickness direction of the buoyancy plate, there are a first centroid point and a second centroid point. At both ends in the height direction of the buoyancy plate, there are a third centroid point and a fourth centroid point. The connection line between the first centroid point and the second centroid point passes through the centroid of the buoyancy plate. The connection line between the third centroid point and the fourth centroid point passes through the centroid of the buoyancy plate. A first guiding chute is connected between the first centroid point and the third centroid point, and a second guiding chute is connected between the second centroid point and the fourth centroid point. At the lower end of the connection line, there is a first sliding rod that is in guiding and moving cooperation with the first guiding chute. A second sliding rod is assembled on the second guiding chute for guiding movement. A counterweight is connected to the second sliding rod by a suspension rope. The buoyancy plate has a monitoring station that is turned over under the action of the counterweight to extend in the up-and-down direction along the height direction on the lower side of the water surface, and the buoyancy plate also has a storage station that floats on the water surface and is turned over to extend in the up-and-down direction along the thickness direction under its own buoyancy. At the bottom of the box body, there is a buoyancy plate storage groove with the notch facing downwards for accommodating the buoyancy plate in the storage station.

2. The portable comprehensive groundwater level and water temperature monitoring data measuring instrument according to claim 1, characterized in that: The first guiding chute and the second guiding chute are centrosymmetrically distributed with the centroid of the buoyancy plate as the center. The first guiding chute includes a straight line segment connected to the first centroid point and extending along the height direction of the buoyancy plate and an arc segment connected between the straight line segment and the third centroid point.

3. The portable comprehensive groundwater level and water temperature monitoring data measuring instrument according to claim 1, wherein: Both the first sliding rod and the second sliding rod are square rods. The first sliding rod is in non-rotating cooperation with the first guiding chute, and the second sliding rod is in non-rotating cooperation with the second guiding chute.

4. The portable comprehensive groundwater level and water temperature monitoring data measuring instrument according to claim 1, characterized in that: Inside the box body, on the right side of the buoyancy plate storage groove, there is a reel driven by a motor. The upper end of the connection line is wound around the corresponding reversing pulley and then wound on the reel.

5. The portable comprehensive groundwater level and water temperature monitoring data measuring instrument according to claim 1, wherein: The water temperature sensor and the water level sensor are arranged on opposite sides of the buoyancy plate, and the water level sensor is located below the water temperature sensor.

6. The portable integrated groundwater level and water temperature monitoring data measuring instrument according to claim 1, characterized in that: The buoyancy plate is made of metal or plastic material. The volume of the buoyancy plate on the side of the connection line between the first centroid point and the second centroid point close to the third centroid point is greater than the volume of the buoyancy plate on the side of the connection line between the first centroid point and the second centroid point close to the fourth centroid point.

7. The portable integrated groundwater level and water temperature monitoring data measuring instrument according to claim 6, wherein: Inside the buoyancy plate on one side of the connection line between the first centroid point and the second centroid point, there is a first buoyancy cavity. Inside the buoyancy plate on the other side of the connection line between the first centroid point and the second centroid point, there is a second buoyancy cavity. The first buoyancy cavity is close to the third centroid point, and the second buoyancy cavity is close to the fourth centroid point. The volume of the first buoyancy cavity is greater than the volume of the second buoyancy cavity.

8. The portable comprehensive groundwater level and water temperature monitoring data measuring instrument according to claim 1, characterized in that: Inside the first guiding chute, there is a first return spring that forces the first sliding rod to move towards the first centroid point. Inside the second guiding chute, there is a second return spring that forces the second sliding rod to move towards the second centroid point.

9. The portable comprehensive groundwater level and water temperature monitoring data measuring instrument according to any one of claims 1 to 8, characterized in that: A resistance plate is hinged on the buoyancy plate. The resistance plate and the first guiding chute are on opposite sides of the buoyancy plate. A resistance plate tension spring is arranged between the resistance plate and the buoyancy plate. One end of the resistance plate close to the third centroid point is connected to the buoyancy plate, and the other end of the resistance plate gradually deviates away from the buoyancy plate.

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