Water level monitoring method and device

Abstract

The invention relates to the technical field of water level monitoring, and discloses a water level monitoring method and device, and the method comprises the steps: installing a plurality of water level gauges, and collecting the water level signals of the water level gauges; the collected water level signals are transmitted to a data center through a Beidou satellite and a public network base station, and the water level signals are processed and analyzed in real time through the data center; the analyzed water level signal is compared with a preset threshold value, an early warning signal is sent out when the water level signal exceeds the threshold value, and the early warning signal is sent to the Beidou satellite. The system has the beneficial effects that different positions of the reservoir can be monitored in real time by installing the multiple water level gauges, so that emergency measures can be taken in time, and the disaster risk is reduced; through the arrangement of the supporting unit and the adjusting unit, the extending distance of the telescopic rod can be adjusted through the adjusting unit so as to adapt to water level signals at different positions, and the situation that due to the fact that the water level is too low and the extending distance of the telescopic rod is short, water level signal monitoring errors are caused, and disasters are caused is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of water level monitoring, and in particular to a water level monitoring method and device. Background Art

[0002] Hydropower stations and dams are important water conservancy facilities that take into account multiple purposes such as water supply, irrigation and power generation, and they carry huge hydraulic pressure and engineering risks. Therefore, it is extremely important to respond to possible emergencies and emergency situations in reservoirs and dams in a timely and effective manner to ensure the safety and stable operation of hydropower stations. Therefore, it is necessary to monitor the water level of the reservoir to prevent disasters.

[0003] The reservoir water level is an important basis for opening the flood discharge gates. The accuracy and stability of the water level signal will affect the safe and stable operation of the entire flood discharge gate system. In order to prevent the reservoir water level from exceeding the warning line or even overflowing the dam, and to further improve the dam's ability to resist extreme natural disasters, it is necessary to monitor the reservoir water level in real time. Summary of the invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] The purpose of the present invention is to provide a water level monitoring method, which can solve the problem of how to monitor the water level in real time.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a water level monitoring method, which includes installing multiple water level meters and collecting water level signals of the water level meters; transmitting the collected water level signals to a data center via Beidou satellites and public network base stations, and performing real-time processing and analysis on the water level signals by the data center; comparing the analyzed water level signals with a preset threshold, and issuing an early warning signal if the threshold is exceeded, and the early warning signal is sent to a Beidou satellite; the Beidou satellite receives the early warning signal and sends the early warning information to relevant departments for processing.

[0007] As a preferred solution of the water level monitoring method of the present invention, the water level meter is composed of a supporting unit and an adjusting unit.

[0008] As a preferred solution of the water level monitoring method described in the present invention, the public network base station transmits the collected water level signal to the monitoring room, and the data in the monitoring room is finally transmitted to the data center; the Beidou satellite can also transmit the collected water level signal to the monitoring room.

[0009] The beneficial effects of the present invention are as follows: by installing multiple water level gauges, the present invention can carry out real-time monitoring of different locations of the reservoir, thereby improving the coverage and diversified data of water level monitoring, and by processing and analyzing water level signals, issuing early warnings for locations where abnormal water levels occur, and transmitting early warning signals in real time via Beidou satellites, and sending early warning information to relevant departments via Beidou satellites, so that emergency measures can be taken in a timely manner to reduce disaster risks.

[0010] The purpose of the present invention is to provide a water level monitoring device, which can solve the problem that the existing water level meter cannot be applied to reservoirs with different widths from the shore.

[0011] In order to solve the above technical problems, the present invention provides the following technical solutions: a water level monitoring device, which includes a supporting unit and an adjusting unit; the supporting unit includes a supporting rod, a data transmission terminal installed on the top of the supporting rod, a radar water level meter fixed to the supporting rod by bolts, and a waterproof box and a photovoltaic panel arranged on the supporting rod; the adjusting unit includes a lever rod, a movable component rotating at one end of the lever rod, and two limit components and a rotating component symmetrically arranged in the movable component.

[0012] As a preferred solution of the water level monitoring device described in the present invention, wherein: the bottom of the support rod is fixedly connected to the base, the top outer ring of the support rod is fixedly connected to the connecting rod, the data transmission terminal is fixed to the top of the connecting rod, the outer ring of the support rod is fixedly connected to the T-shaped slide rail, and one side of the T-shaped slide rail is symmetrically provided with multiple slots.

[0013] As a preferred solution of the water level monitoring device described in the present invention, wherein: the top outer ring of the support rod is fixedly connected with a telescopic rod, the telescopic end of the telescopic rod is fixedly connected with a mounting plate, and the lower part of the telescopic end of the telescopic rod is fixedly connected with a first hinged seat; the radar water level meter is fixed to one side of the mounting plate by bolts, and the waterproof box is fixed to the outer ring of the support rod by two symmetrically arranged first mounting frames; the photovoltaic panel is mounted on the outer ring of the support rod by a second mounting frame.

[0014] As a preferred solution of the water level monitoring device described in the present invention, the movable component includes a T-shaped slider sliding on a T-shaped slide rail, a second hinged seat fixed on one side of the T-shaped slider, three sockets opened on one side of the T-shaped slider, two second grooves symmetrically opened on the inner side of the T-shaped slider, and two rotating rods symmetrically passing through and rotating in the T-shaped slider; both ends of the lever rod are respectively rotated on the first hinged seat and the second hinged seat through a rotating shaft.

[0015] As a preferred solution of the water level monitoring device described in the present invention, one end of the rotating rod located on the inner side of the T-shaped slider is fixedly connected to a retaining ring, the other end of the rotating rod is provided with a first groove, and the outer ring of the rotating rod is fixedly connected to a blocking block at one end close to the retaining ring.

[0016] As a preferred solution of the water level monitoring device described in the present invention, the limit assembly includes a limit plate arranged in the middle, a through hole opened on the limit plate, two third grooves symmetrically opened at both ends of the through hole, and a stopper and a clamping rod fixed in the third groove close to one side of the sliding rod, the clamping rod is engaged with the clamping block, the retaining ring is adapted to the third groove on the other side, and the through hole is rotatably engaged with the outer ring of the rotating rod.

[0017] As a preferred solution of the water level monitoring device described in the present invention, the rotating assembly includes a sliding rod sliding in the first groove, a spring arranged at one end of the sliding rod and a knob fixed at the other end of the sliding rod, one side of the knob is fixedly connected with an insertion rod, the insertion rod is adapted thereto, and both ends of the spring are respectively fixed at one end of the sliding rod and one side of the first groove.

[0018] The beneficial effects of the present invention are as follows: through the provision of a supporting unit and an adjusting unit, after the water level meter is installed, the extension distance of the telescopic rod can be adjusted through the adjusting unit to adapt to water level signals at different positions, and errors in water level signal monitoring caused by too low water level and short extension distance of the telescopic rod can be avoided, which can cause disasters. In addition, the adjusting unit can enhance the support of the telescopic rod to ensure the stability of the radar water level meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 Schematic diagram of the water level monitoring method.

[0021] Figure 2 It is a structural schematic diagram of the water level monitoring device.

[0022] Figure 3 This is a partial structural diagram of the water level monitoring device.

[0023] Figure 4 It is a schematic diagram of the structure of the waterproof box in the water level monitoring device.

[0024] Figure 5This is a schematic diagram of the structure of the photovoltaic panel in the water level monitoring device.

[0025] Figure 6 It is a schematic diagram of the structure of the regulating unit in the water level monitoring device.

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the active components in the water level monitoring device.

[0027] Figure 8 It is a schematic diagram of the structure of the rotating rod in the water level monitoring device.

[0028] Fig. 9 It is a schematic diagram of the structure of the limit assembly and the rotating assembly in the water level monitoring device.

[0029] Fig.10 This is the operation process diagram of the water level monitoring device. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1

[0034] Reference Figures 1 to 10 , which is the first embodiment of the present invention, provides a water level monitoring method, which includes installing multiple water level meters and collecting water level signals from the water level meters; transmitting the collected water level signals to a data center via Beidou satellites and public network base stations, and performing real-time processing and analysis on the water level signals via the data center; comparing the analyzed water level signals with a preset threshold, and issuing an early warning signal if the threshold is exceeded, and the early warning signal is sent to the Beidou satellite; the Beidou satellite receives the early warning signal and sends the early warning information to relevant departments for processing.

[0035] By installing multiple water level gauges, water level signals at multiple points in the reservoir can be obtained in real time. The water level signals are transmitted to the data center in real time via Beidou satellites and public network base stations. The data center processes and analyzes the collected water level signals and compares the processed data with the preset water level threshold. Once the data exceeds the threshold, an alarm and warning can be triggered. After the alarm and warning are triggered, the alarm and warning information will be sent to relevant departments via Beidou satellites, and can also be sent to residents around the dam through the broadcasting system. The alarm information includes alarm type, alarm level, specific location, etc., which need to be packaged and sent in the prescribed format.

[0036] Beidou satellites have the characteristics of global coverage, high precision, high reliability and high stability. The application of Beidou navigation system in emergency management can realize multiple functions such as real-time monitoring and early warning, dam inspection and maintenance, emergency rescue and command and dispatch, data sharing and coordinated response, etc., provide timely and accurate information support and technical guarantee, accurately transmit early warning information to various relevant departments, and accurately receive the collected water level signals to prevent disasters.

[0037] Example 2

[0038] Reference Figure 1 , which is the second embodiment of the present invention, and is different from the first embodiment in that it also includes a water level meter consisting of a supporting unit 100 and an adjusting unit 200.

[0039] Furthermore, the public network base station will transmit the collected water level signal to the monitoring room, and the data in the monitoring room will eventually be transmitted to the data center; the Beidou satellite can also transmit the collected water level signal to the monitoring room.

[0040] The collected water level signals are transmitted to the data center and monitoring room via Beidou satellites, while the water level signals are transmitted to the monitoring room via public network base stations and finally to the data center. The dual-line transmission of Beidou satellites and public network base stations is to ensure that when flash floods occur, communication base stations are damaged, public network is interrupted, ground network signals are weak and other reasons occur, the public network base stations often cause the monitoring information to be unable to be sent back in time. At this time, an emergency communication mechanism can be established based on the Beidou-3 short message technology to achieve two-way communication, ensuring that water level signals can be grasped in real time to prevent disasters.

[0041] Example 3

[0042] Reference Figure 2 to Figure 10, which is the third embodiment of the present invention. This embodiment is based on the previous two embodiments. This embodiment provides a water level monitoring device, which includes a support unit 100 and an adjusting unit 200. The adjusting unit 200 is installed on one side of the support unit 100 to provide support for the support unit 100 to ensure the stability of the support unit 100 after installation to avoid being affected by strong wind force, causing shaking, affecting the monitoring result of the water level, and causing disasters.

[0043] Specifically, the support unit 100 includes a support rod 101, a data transmission terminal 102 installed on the top of the support rod 101, a radar water level meter 103 fixed to the support rod 101 by bolts, and a waterproof box 104 and a photovoltaic panel 105 arranged on the support rod 101; the adjustment unit 200 includes a lever rod 201, a movable component 202 rotated on one end of the lever rod 201, and two limit components 203 and a rotating component 204 symmetrically arranged in the movable component 202.

[0044] (102) and the radar water level meter 103 are both supported by the support rod 101. The data transmission terminal 102 is used for transmitting the water level signal, which can be transmitted to the Beidou satellite and the public network base station. The radar water level meter 103 is used for measuring the water level and transmitting the water level signal to the data transmission terminal 102 via an electrical signal. The waterproof box 104 is used for placing the installed lines and controllers, etc., and is powered by the installed photovoltaic panels 105 to ensure its normal operation.

[0045] Specifically, the bottom of the support rod 101 is fixedly connected to the base 101a, the top outer ring of the support rod 101 is fixedly connected to the connecting rod 101b, the data transmission terminal 102 is fixed to the top of the connecting rod 101b, the outer ring of the support rod 101 is fixedly connected to the T-shaped slide rail 101f, and a plurality of slots 101g are symmetrically opened on one side of the T-shaped slide rail 101f.

[0046] Furthermore, the top outer ring of the support rod 101 is fixedly connected to a telescopic rod 101c, the telescopic end of the telescopic rod 101c is fixedly connected to a mounting plate 101e, and the lower part of the telescopic end of the telescopic rod 101c is fixedly connected to a first hinge seat 101d; the radar water level meter 103 is fixed to one side of the mounting plate 101e by bolts, and the waterproof box 104 is fixed to the outer ring of the support rod 101 by two symmetrically arranged first mounting frames 104a; the photovoltaic panel 105 is installed on the outer ring of the support rod 101 by a second mounting frame 105a.

[0047] The support rod 101 is fixed to the ground through the base 101a to ensure the stability of the device. The telescopic rod 101c is retractable, and the first hinged seat 101d fixed on its lower side rotates with the lever rod 201 to facilitate the lever rod 201 to support and push it. The mounting plate 101e is used to install the radar water level meter 103 to ensure the stability of the radar water level meter 103.

[0048] The T-shaped slide rail 101f provides the conditions for the movement of the movable component 202, and limits it through the mutual cooperation between the slot 101g and the limit component 203. The length of the T-shaped slide rail 101f can be set according to the actual length of the support rod 101, the installation position of the waterproof box 104 and the photovoltaic panel 105, and the required movement length of the telescopic rod 101c. The distance between each tooth groove in the slot 101g can also be set according to actual usage requirements.

[0049] Furthermore, the telescopic rod 101c and the support rod 101 can be set to be hollow, which is convenient for the placement of the wiring of the radar water level meter 103 and prevents it from being placed outside the device and being damaged by rain erosion or other conditions, causing signal transmission failure. The internal wiring can be set before installation, and the specific setting can be made according to the actual situation.

[0050] Specifically, the movable component 202 includes a T-shaped slider 202a sliding on the T-shaped slide rail 101f, a second hinge seat 202b fixed to one side of the T-shaped slider 202a, three sockets 202c opened on one side of the T-shaped slider 202a, two second grooves 202e symmetrically opened on the inner side of the T-shaped slider 202a, and two rotating rods 202d symmetrically passing through and rotating in the T-shaped slider 202a; both ends of the lever 201 are respectively rotated on the first hinge seat 101d and the second hinge seat 202b through the rotating shaft 201a.

[0051] Furthermore, one end of the rotating rod 202d located on the inner side of the T-shaped slider 202a is fixedly connected to a retaining ring 202d-1, the other end of the rotating rod 202d is provided with a first groove 202d-2, and the outer ring of the rotating rod 202d is fixedly connected to one end of the retaining ring 202d-1 with a clamping block 202d-3.

[0052] The T-shaped slider 202a is engaged with the T-shaped slide rail 101f, and the T-shaped slider 202a can slide on the T-shaped slide rail 101f, and the T-shaped slider 202a is fixed by the cooperation between the limit assembly 203 and the slot 101g. The socket 202c serves as an indicator for the rotating assembly 204. By aligning different sockets 202c with the rotating assembly 204, different states of the limit assembly 203 can be controlled, which is also convenient for the staff to operate.

[0053] The setting of the rotating rod 202d provides a supporting basis for the limit assembly 203, and limits the limit assembly 203 through the retaining ring 202d-1 to prevent it from falling off the rotating rod 202d. The first groove 202d-2 can provide movement requirements for the rotating assembly 204, and can limit rotation between the rotating assembly 204. When the rotating assembly 204 is rotated, it can drive the rotating rod 202d to rotate together.

[0054] Specifically, the limit assembly 203 includes a limit plate 203a arranged in 201e, a through hole 203b opened on the limit plate 203a, two third grooves 203c symmetrically opened at both ends of the through hole 203b, and a stopper 203d and a clamping rod 203e fixed in the third groove 203c on the side close to the sliding rod 204a, the clamping rod 203e is engaged with the block 202d-3, the retaining ring 202d-1 is adapted to the third groove 203c on the other side, and the through hole 203b is rotatably engaged with the outer ring of the rotating rod 202d.

[0055] Furthermore, the rotating assembly 204 includes a sliding rod 204a sliding in the first groove 202d-2, a spring 204b arranged at one end of the sliding rod 204a, and a knob 204c fixed to the other end of the sliding rod 204a, one side of the knob 204c is fixedly connected with an insertion rod 204d, the insertion rod 204d is adapted to 201c, and both ends of the spring 204b are respectively fixed to one end of the sliding rod 204a and one side of the first groove 202d-2.

[0056] The width of the limiting plate 203a is respectively adapted to the T-shaped slide rail 101f and the slot 101g, and the length of the limiting plate 203a is adapted to the depth of the slot 101g, so that the limiting plate 203a can cooperate with the slot 101g to limit the T-shaped slider 202a. By opening the third groove 203c, the movement of the limiting plate 203a can be limited.

[0057] Furthermore, the levering rod 201 can be a long rod with telescopic length, which can increase the extension length of the telescopic rod 101c. However, since the length of the levering rod 201 will affect the stability of the radar water level meter 103, the longer levering rod 201 will swing due to the longer force arm when subjected to strong winds. Therefore, the selection of the levering rod 201 can be set according to the location where the device is installed and the environment in which it is located.

[0058] The slide bar 204a is matched with the first groove 202d-2, so that when the knob 204c is turned, the rotating rod 202d can be driven to rotate. The setting of the insertion rod 204d can be matched with the socket 202c. When the spring 204b drives the slide bar 204a to move into the first groove 202d-2, the insertion rod 204d will be inserted into the socket 202c accordingly, and the slide bar 204a and the rotating rod 202d are limited in rotation. The action of the spring 204b can make the slide bar 204a stably placed in the first groove 202d-2, and at the same time ensure that the knob 204c will not rotate autonomously, thereby maintaining its stability.

[0059] According to the attached Fig.10 In the first figure, through the cooperation between the stopper 203d and 203e) and the clamping block 202d-3, when the rotating assembly 204 drives the clamping block 202d-3 to push the stopper 203d through the rotating rod 202d, the position of the limit plate 203a can be adjusted so that when it moves along the T-shaped slider 202a, it will not contact the T-shaped slide rail 101f and affect the movement of the T-shaped slider 202a; Fig.10 As the locking plate 203a is moved downward, the locking member 204a is moved downward, and the locking member 203a is moved downward, so that the locking member 203a is in contact with the locking member 101e. Fig.10 The third figure in the figure prevents the T-shaped slider 202a from shaking due to external factors, which may cause the radar water level meter 103 to have poor stability.

[0060] When in use, the initial state is attached Fig.10In the first figure, at this time, the insertion rod 204d is inserted into the socket 202c located at the upper right position of one side of the T-shaped slider 202a. When the T-shaped slider 202a needs to be moved, first, the knob 204c is pulled away from the first groove 202d-2. When the insertion rod 204d is disengaged from the socket 202c, the knob 204c is turned to drive the rotating rod 202d to rotate through the sliding rod 204a. When the insertion rod 204d moves to the socket 202c located at the lower right position of one side of the T-shaped slider 202a, the block 202d-3 is disengaged from the stopper 203d and the block 202d-3 will not affect the subsequent rotation of the limit plate 203a, and then the T-shaped slider 202a can be moved. 02a is moved. When the T-shaped slider 202a moves to a position slightly higher than the appropriate height, the T-shaped slider 202a is moved downward. At this time, the protruding part of the limit plate 203a will contact the slot 101g. At this time, the limit plate 203a will rotate around the rotating rod 202d. When the T-shaped slider 202a cannot continue to fall, the above-mentioned rotation of the knob 204c is repeated to rotate it to the socket 202c located at the upper left position on one side of the T-shaped slider 202a. At this time, the block 202d-3 is engaged with the clamping rod 203e to limit the limit plate 203a so that it will not rotate. If the height of the T-shaped slider 202a needs to be adjusted, just follow the above-mentioned operation.

[0061] In summary, when in use, first install the device to a suitable position, move the T-shaped slider 202a to adjust the extension length of the telescopic rod 101c according to the distance from the shore to the measuring position, and limit the T-shaped slider 202a through the cooperation between the rotating component 204, the limiting component 203 and the T-shaped slide rail 101f. After the adjustment and installation are completed, the lines are connected to monitor the water level signal in real time. If the water level is abnormal and exceeds the set threshold, an alarm is triggered. After receiving the alarm information, the Beidou satellite will release it to the relevant departments for further review.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A water level monitoring method, characterized in that: include, Install multiple water level gauges and collect water level signals from the water level gauges; The collected water level signals are transmitted to the data center via Beidou satellites and public network base stations, and the water level signals are processed and analyzed in real time by the data center; The analyzed water level signal is compared with a preset threshold value, and an early warning signal is issued if the threshold value is exceeded, and the early warning signal is sent to the Beidou satellite; The BeiDou satellite receives the warning signal and sends the warning information to relevant departments for processing.

2. The water level monitoring method according to claim 1, characterized in that: The water level gauge consists of a supporting unit (100) and an adjusting unit (200).

3. The water level monitoring method according to claim 2, characterized in that: The public network base station transmits the collected water level signal to the monitoring room, and the data in the monitoring room is finally transmitted to the data center; The Beidou satellite can also transmit the collected water level signal to the monitoring room.

4. A water level monitoring device, characterized in that: A water level gauge according to any one of claims 1 to 3, comprising a supporting unit (100) and an adjusting unit (200); The support unit (100) comprises a support rod (101), a data transmission terminal (102) installed on the top of the support rod (101), a radar water level meter (103) fixed to the support rod (101) by bolts, and a waterproof box (104) and a photovoltaic panel (105) arranged on the support rod (101); The adjustment unit (200) comprises a lever (201), a movable component (202) rotated on one end of the lever (201), and two limit components (203) and a rotating component (204) symmetrically arranged in the movable component (202).

5. The water level monitoring device according to claim 4, characterized in that: The bottom of the support rod (101) is fixedly connected to a base (101a), the top outer ring of the support rod (101) is fixedly connected to a connecting rod (101b), the data transmission terminal (102) is fixed to the top of the connecting rod (101b), the outer ring of the support rod (101) is fixedly connected to a T-shaped slide rail (101f), and one side of the T-shaped slide rail (101f) is symmetrically provided with a plurality of slots (101g).

6. The water level monitoring device according to claim 5, characterized in that: The top outer ring of the support rod (101) is fixedly connected to a telescopic rod (101c), the telescopic end of the telescopic rod (101c) is fixedly connected to a mounting plate (101e), and the lower part of the telescopic end of the telescopic rod (101c) is fixedly connected to a first hinge seat (101d); The radar water level meter (103) is fixed to one side of the mounting plate (101e) by means of bolts; the waterproof box (104) is fixed to the outer ring of the support rod (101) by means of two symmetrically arranged first mounting frames (104a); and the photovoltaic panel (105) is mounted to the outer ring of the support rod (101) by means of a second mounting frame (105a).

7. The water level monitoring device according to claim 6, characterized in that: The movable component (202) comprises a T-shaped slider (202a) sliding on the T-shaped slide rail (101f), a second hinge seat (202b) fixed on one side of the T-shaped slider (202a), three insertion holes (202c) opened on one side of the T-shaped slider (202a), two second grooves (202e) symmetrically opened on the inner side of the T-shaped slider (202a), and two rotating rods (202d) symmetrically penetrating and rotating inside the T-shaped slider (202a); Both ends of the lever (201) are respectively rotated on the first hinge seat (101d) and the second hinge seat (202b) via a rotating shaft (201a).

8. The water level monitoring device according to claim 7, characterized in that: One end of the rotating rod (202d) located on the inner side of the T-shaped slider (202a) is fixedly connected to a retaining ring (202d-1), the other end of the rotating rod (202d) is provided with a first groove (202d-2), and one end of the outer ring of the rotating rod (202d) close to the retaining ring (202d-1) is fixedly connected to a clamping block (202d-3).

9. The water level monitoring device according to claim 8, characterized in that: The limiting assembly (203) comprises a limiting plate (203a) arranged in (201e), a through hole (203b) opened on the limiting plate (203a), two third grooves (203c) symmetrically opened at both ends of the through hole (203b), and a stopper (203d) and a clamping rod (203e) fixed in the third groove (203c) on one side close to the sliding rod (204a), the clamping rod (203e) is engaged with the clamping block (202d-3), the blocking ring (202d-1) is adapted to the third groove (203c) on the other side, and the through hole (203b) is rotationally engaged with the outer ring of the rotating rod (202d).

10. The water level monitoring device according to claim 9, characterized in that: The rotating assembly (204) includes a sliding rod (204a) sliding in the first groove (202d-2), a spring (204b) arranged at one end of the sliding rod (204a), and a knob (204c) fixed to the other end of the sliding rod (204a), one side of the knob (204c) is fixedly connected to an insertion rod (204d), the insertion rod (204d) is adapted to (201c), and the two ends of the spring (204b) are respectively fixed to one end of the sliding rod (204a) and one side of the first groove (202d-2).

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