Water level monitoring device

Abstract

The invention provides a water level monitoring device. The water level monitoring device comprises a mounting seat; the detection box is fixedly arranged on the mounting base, the detection box extends in the horizontal direction, and a sensor is arranged in the detection box; the floating piece is arranged below the detection box, and the floating piece is matched with the sensor to detect the height of the water level; the bird repelling assembly is arranged on the detection box, the bird repelling assembly is provided with a sound production part and a transmission part, the floating part is in driving connection with the transmission part, and when the height position of the floating part changes, the floating part can drive the sound production part to produce noise through the transmission part. According to the technical scheme, the problem that a water level monitoring device in the prior art is prone to attracting birds to gather can be solved.

Description

Technical Field

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

[0002] At present, in industries such as waterway regulation, port construction, and river sand mining, water level monitoring devices are usually used to obtain real-time water level information to provide a basis for river management work.

[0003] Water level monitoring devices in the prior art usually use various ultrasonic sensors, capacitive sensors or float monitoring devices to monitor the water level. Various monitoring components need to be fixed on the shore to conduct long-term water level detection. If the monitoring device is fixed on the shore in the wild for a long time, it will attract birds to gather and rest or build nests, increasing the overall weight of the device and causing inaccurate detection data. In addition, the water level monitoring device attracts too many birds to gather, and a large amount of bird feces will corrode the device, shortening the service life of the device. Summary of the invention

[0004] The invention provides a water level monitoring device to solve the problem that the water level monitoring device in the prior art is easy to attract birds to gather.

[0005] The present invention provides a water level monitoring device, which comprises: a mounting seat; a detection box, which is fixedly arranged on the mounting seat, the detection box extends in a horizontal direction, and a sensor is arranged in the detection box; a floating member, which is arranged below the detection box, and the floating member cooperates with the sensor to detect the water level height; a bird-repelling component, which is arranged on the detection box, and the bird-repelling component has a sound-emitting part and a transmission part, the floating member is drivingly connected to the transmission part, and when the height position of the floating member changes, the floating member can drive the sound-emitting part to emit noise through the transmission part.

[0006] Furthermore, the bird-repelling assembly includes: a shell, the shell is fixedly arranged on the detection box, and the side wall of the shell is provided with a through hole; a hammer and a sounding plate, the hammer is movably arranged in the shell, the sounding plate and the hammer are correspondingly arranged, and the hammer and the sounding plate cooperate to form a sounding part; a transmission shaft and a transmission plate, the transmission shaft is horizontally passed through the through hole, the transmission plate is eccentrically arranged on the side wall of the transmission shaft, the transmission shaft is drivingly connected to a floating member, the floating member can drive the transmission shaft and the transmission plate to rotate, the transmission plate is used to drive the hammer to approach the sounding plate to hit the sounding plate, and the transmission shaft and the transmission plate cooperate to form a transmission part.

[0007] Furthermore, a mounting plate is provided in the shell, the mounting plate is movably provided in the shell, the hammer is provided on the mounting plate, the transmission shaft is located on the side of the mounting plate away from the hammer, and when the transmission plate rotates toward the mounting plate, the transmission plate can drive the mounting plate to move toward the sounding plate.

[0008] Furthermore, the bird-repellent assembly also includes: a connecting rope, one end of which is fixedly connected to the floating member, and the other end of which is fixedly connected to the side wall of the transmission shaft; a torsion spring, which is arranged on the side wall of the shell, and is fixedly connected to the side wall of the transmission shaft, and is used to provide an elastic force for the floating member to move toward the shell.

[0009] Furthermore, the plane where the transmission plate is located is perpendicular to the axis of the transmission shaft, and the outer periphery of the transmission plate and the mounting plate that cooperate with each other is arc-shaped.

[0010] Furthermore, the water level monitoring component also includes a guide rod, a guide hole is provided on the floating member, the guide hole and the guide rod are penetrated in the guide hole, and the floating member and the guide rod are guided and matched.

[0011] Furthermore, the water level monitoring component also includes a column, and the floating part includes: a main body, the main body has a through hole, the main body is mounted on the column through the through hole, the diameter of the through hole is larger than the diameter of the column, the main body has a plurality of ball grooves, and the ball grooves are arranged at annular intervals on the outer periphery of the through hole; a first ball, a plurality of first balls are arranged, the first balls are arranged in the ball grooves, the plurality of first balls are arranged one by one corresponding to the plurality of ball grooves, and the plurality of first balls are all in contact with the column.

[0012] Furthermore, the column has an extension section and a rotating section connected to each other, one end of the extension section away from the rotating section is fixedly connected to the detection box, the rotating section can rotate around the axis of the column relative to the extension section, and a driving structure is provided on the floating member to drive the rotating section to rotate.

[0013] Furthermore, a first magnet is fixedly mounted on the inner wall of the perforation, and a plurality of second magnets are annularly spaced apart on the side wall of the rotating section. The magnetic pole of the first magnet facing the column axis is opposite to the magnetic pole of the second magnet away from the column axis, and the first magnet forms a driving structure.

[0014] Furthermore, a connecting shaft is provided at one end of the extension section away from the detection box, and a connecting groove is provided at one end of the rotating section close to the extension section. The connecting shaft is arranged in the connecting groove, a first limiting groove is provided in an annular manner on the side wall of the connecting shaft, and a second limiting groove is provided in an annular manner on the inner wall of the connecting groove, and a plurality of second balls are provided in the first limiting groove and the second limiting groove.

[0015] Applying the technical solution of the present application, the water level detection device includes a mounting seat, a detection box, a floating part made of lightweight material, and a bird-repelling component. The mounting seat is fixed on the bank of the river, the detection box extends toward the river, and the floating part is in the river. Because the floating part has buoyancy, it can float on the water surface. The sensor and the floating part can cooperate to measure the current water level. In the present application, by arranging the bird-repelling component on the detection box, when the water level of the river changes, or when the height position of the floating part changes due to the fluctuation of the water surface, the floating part can drive the sound-emitting part of the bird-repelling component to emit noise to drive away birds, prevent birds from gathering or nesting, reduce the accumulation of bird droppings on the detection surface, ensure the stability of the detection box installation, reduce the corrosion of the detection box, and improve the durability of the detection box. In addition, the water level monitoring device needs to be exposed to the wild for a long time to work. In the present application, the height position of the floating part is changed to drive the sound-emitting part to emit noise, which can improve the weather resistance of the water level monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It shows a schematic diagram of the structure of the water level monitoring device provided by the present invention arranged beside a river;

[0018] Figure 2 The structure schematic diagram of the bird-repelling assembly provided by the present invention is shown;

[0019] Figure 3 Shows Figure 2 A partial enlarged view of the middle A;

[0020] Figure 4 A side view showing the cooperation between the transmission shaft and the transmission plate provided by the present invention is shown;

[0021] Figure 5 A schematic diagram showing the structure of the cooperation between the floating member and the column provided by the present invention is shown;

[0022] Figure 6 Shows Figure 5 A partial enlarged view of point B in the middle;

[0023] Figure 7 A schematic structural diagram of a rotating section of a column provided by the present invention is shown;

[0024] Figure 8 Shows Figure 1 A partial enlarged view of point C in the middle;

[0025] Fig. 9 A schematic diagram of a limit ring of a rotating section of a column provided by the present invention is shown.

[0026] The above drawings include the following reference numerals:

[0027] 10. Mounting seat;

[0028] 20. Detection box; 21. Socket; 22. Wire; 23. Limiting ring; 231. Connecting rod; 232. Opening; 24. Spring;

[0029] 30. floating member; 31. body; 32. first ball; 33. first magnet;

[0030] 40. Bird-repelling assembly; 41. Shell; 42. Hammer; 43. Sounding plate; 44. Transmission shaft; 441. Limit block; 45. Transmission plate; 46. Mounting plate; 47. Connecting rope; 48. Torsion spring; 49. Guide groove;

[0031] 50. Guide rod;

[0032] 60. Column; 61. Extension section; 62. Rotation section; 63. Second magnet; 64. Second ball; 65. Connecting shaft. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1 As shown, an embodiment of the present invention provides a water level monitoring device, which includes a mounting seat 10, a detection box 20, a floating member 30 and a bird-repelling assembly 40. The detection box 20 is fixedly mounted on the mounting seat 10, extends in the horizontal direction, and a sensor is arranged in the detection box 20. The floating member 30 is arranged below the detection box 20, and the floating member 30 cooperates with the sensor to detect the water level. The bird-repelling assembly 40 is arranged on the detection box 20, and the bird-repelling assembly 40 has a sound-emitting part and a transmission part. The floating member 30 is drivingly connected to the transmission part. When the height position of the floating member 30 changes, the floating member 30 can drive the sound-emitting part to emit noise through the transmission part.

[0035] By applying the technical solution of the present application, the water level detection device includes a mounting seat 10, a detection box 20, a floating member 30 made of a lightweight material, and a bird-repelling assembly 40. The mounting seat 10 is fixed on the bank of the river, the detection box 20 extends toward the river, and the floating member 30 is in the river. Because the floating member 30 has buoyancy, it can float on the water surface. The sensor cooperates with the floating member 30 to measure the current water level. In the present application, by arranging the bird-repelling assembly 40 on the detection box 20, when the water level of the river changes, or when the height position of the floating member 30 changes due to the fluctuation of the water surface, the floating member 30 can drive the sound-generating part of the bird-repelling assembly 40 to emit noise to drive away birds, prevent birds from gathering or nesting, reduce the accumulation of bird droppings on the surface of the detection box 20, ensure the stability of the installation of the detection box 20, reduce the corrosion of the detection box 20, and improve the durability of the detection box 20. Furthermore, the water level monitoring device needs to be exposed to the outdoors for a long time to work. In the present application, the height position of the floating member 30 is changed to drive the sound-generating part to generate noise, thereby improving the weather resistance of the water level monitoring device.

[0036] Specifically, the sensor in the present application may be a position sensor, which is used to detect the distance between the floating member 30 and the detection box 20 to detect the water level.

[0037] Specifically, the floating member 30 can be made of hard foam material.

[0038] Reference Figure 1 and Figure 2 As shown in detail in one embodiment of the present application, the bird-repelling assembly 40 includes a housing 41, a hammer 42, a sounding plate 43, a transmission shaft 44 and a transmission plate 45. The housing 41 is fixedly arranged on the detection box 20, the side wall of the housing 41 is provided with a perforation, the hammer 42 is movably arranged in the housing 41, and the sounding plate 43 is arranged corresponding to the hammer 42. The transmission shaft 44 is horizontally penetrated in the perforation, the transmission plate 45 is eccentrically arranged on the side wall of the transmission shaft 44, the transmission shaft 44 is connected to the floating member 30 by driving, the floating member 30 can drive the transmission shaft 44 and the transmission plate 45 to rotate, and the transmission plate 45 is used to drive the hammer 42 to approach the sounding plate 43 to hit the sounding plate 43. Through the above arrangement, the sounding plate 43 cooperates with the hammer 42 to form a sounding part, and the transmission shaft 44 cooperates with the transmission plate 45 to form a transmission part. When the height position of the floating member 30 changes, the floating member 30 can drive the hammer 42 to strike the sounding plate 43 through the transmission of the transmission shaft 44 and the transmission plate 45 to generate noise to disperse the flock of birds.

[0039] Furthermore, a mounting plate 46 extending in the horizontal direction is further provided in the housing 41, the mounting plate 46 is movably provided in the housing 41, the hammer 42 is provided on the mounting plate 46, the transmission shaft 44 is located on the side of the mounting plate 46 away from the hammer 42, and when the transmission plate 45 rotates in the direction of the mounting plate 46, the transmission plate 45 can drive the mounting plate 46 to move in the direction of the sounding plate 43. When the eccentric transmission plate 45 rotates in the direction of the mounting plate 46 until it contacts the mounting plate 46, the transmission plate 45 can push the hammer 42 to move in the direction of the sounding plate 43 to strike the sounding plate 43, and when the eccentric transmission plate 45 rotates in the direction away from the mounting plate 46, the mounting plate 46 falls down to separate from the sounding plate 43.

[0040] Specifically, a plurality of hammers 42 and a plurality of sounding plates 43 may be provided, and the plurality of hammers 42 and the plurality of sounding plates 43 are provided in a one-to-one correspondence to increase the volume of the noise emitted by the generating part.

[0041] Specifically in the present application, a plurality of sound expansion holes may be provided on the side wall of the shell 41 so that the noise emitted by the sound-emitting sheet 43 can be better transmitted out of the shell 41 .

[0042] Specifically, the sound-emitting sheet 43 may be a copper sheet.

[0043] In the present application, a guide groove 49 may be provided on the inner wall of the shell 41, and the guide groove 49 extends in the vertical direction. The mounting plate 46 may be movably disposed in the guide groove 49 to guide the movement of the mounting plate 46 and to limit the mounting plate 46 up and down to prevent the mounting plate 46 from excessive displacement.

[0044] like Figure 3 As shown, the bird-repelling assembly 40 also includes a connecting rope 47 and a torsion spring 48. One end of the connecting rope 47 is fixedly connected to the floating member 30, and the other end of the connecting rope 47 is fixedly connected to the side wall of the transmission shaft 44. The torsion spring 48 is arranged on the side wall of the housing 41, and the torsion spring 48 is fixedly connected to the side wall of the transmission shaft 44, and is used to provide the floating member 30 with an elastic force to move toward the housing 41. When the floating member 30 remains stationary, the sum of the buoyancy of the floating member 30 and the elastic force provided by the torsion spring 48 to the floating member 30 is equal to the gravity of the floating member 30. When the floating member 30 changes in the water level, the floating member 30 moves along the height, and the torsion spring 48 and the connecting rope 47 act together on the transmission shaft 44, so that the transmission shaft 44 reciprocates to drive the transmission plate 45 to repeatedly hit the mounting plate 46, so that the hammer 42 repeatedly hits the sounding plate 43 to make noise.

[0045] In a specific embodiment of the present application, Figure 4As shown, the plane where the transmission plate 45 is located is perpendicular to the axis of the transmission shaft 44, and the outer periphery of the transmission plate 45 and the mounting plate 46 is arc-shaped. Through the above arrangement, the friction between the transmission plate 45 and the mounting plate 46 can be reduced, and the matching effect between the transmission plate 45 and the mounting plate 46 can be improved.

[0046] In other embodiments of the present application, the plane where the transmission plate 45 is located may not be perpendicular to the axis of the transmission shaft 44 .

[0047] Furthermore, a limit block 441 is provided on the side wall of the transmission shaft 44 , and the limit block 441 is used to cooperate with the torsion spring 48 . The torsion spring 48 applies elastic force to the transmission shaft 44 through the limit block 441 to prevent the cooperation between the transmission shaft 44 and the torsion spring 48 from failing.

[0048] Specifically, the water level monitoring assembly further includes a guide rod 50 extending in the height direction, a guide hole is provided on the floating member 30, the guide hole and the guide rod 50 are inserted in the guide hole, and the floating member 30 is guided and matched with the guide rod 50. Through the above arrangement, the guide rod 50 cooperates with the floating member 30 to guide the movement of the floating member 30, prevent the floating member 30 from drifting away with the waves, and ensure the matching effect of the floating member 30 and the sensor.

[0049] Reference Figure 5 As shown, the water level monitoring assembly also includes a column 60, and the floating member 30 includes a body 31 and a first ball 32. The body 31 has a through hole, and the body 31 is sleeved on the column 60 through the through hole. The diameter of the through hole is larger than the diameter of the column 60. The body 31 has a plurality of ball grooves, and the ball grooves are arranged at intervals around the outer periphery of the through hole. A plurality of first balls 32 are provided, and the first balls 32 are arranged in the ball grooves. The plurality of first balls 32 are arranged one by one corresponding to the plurality of ball grooves, and the plurality of first balls 32 are all in contact with the column 60. In this way, the floating member 30 can guide the movement of the floating member 30 in the height direction through the cooperation of the column 60 and the guide rod 50, so as to prevent the floating member 30 from rotating and affecting the length of the connecting rope 47. At the same time, the first ball 32 arranged in the floating member 30 can reduce the friction between the floating member 30 and the column 60, so as to ensure the smooth movement of the floating member 30.

[0050] Furthermore, the column 60 has an extension section 61 and a rotating section 62 connected to each other, one end of the extension section 61 away from the rotating section 62 is fixedly connected to the detection box 20, and the rotating section 62 can rotate relative to the extension section 61 around the axis of the column 60, and a driving structure is provided on the floating member 30 to drive the rotating section 62 to rotate. Through the above arrangement, the driving structure on the floating member 30 can drive the rotating section 62 to rotate, reduce the deposition and aggregation of plankton on the rotating section 62, and further improve the durability of the water level monitoring device.

[0051] In a specific embodiment of the present application, Figure 5 and Figure 7 As shown, a first magnet 33 is fixedly arranged on the inner wall of the perforation, and a plurality of second magnets 63 are arranged at intervals on the side wall of the rotating section 62 in an annular manner. The magnetic pole of the first magnet 33 facing the axis of the column 60 is opposite to the magnetic pole of the second magnet 63 away from the axis of the column 60, and the first magnet 33 forms a driving structure. Through the above arrangement, when the floating member 30 floats up and down, the first magnet 33 will pass by the second magnet 63, and the first magnet 33 will drive the second magnet 63 away from the first magnet 33. The plurality of second magnets 63 are arranged at intervals on the side wall of the rotating section 62 in an annular manner. In the process of the first magnet 33 passing by the second magnet 63, the plurality of second magnets 63 can extend the rotation path of the rotating section 62, thereby improving the driving effect.

[0052] Specifically, a plurality of first magnets 33 may be provided in the floating member 30 , and the plurality of first magnets 33 are spaced apart along the height direction, so that when the floating member 30 passes through the second magnet 63 in the height direction, the plurality of first magnets 33 can drive the rotating section 62 to rotate, thereby improving the driving effect of the first magnet 33 .

[0053] Reference Figure 6 As shown, a connecting shaft 65 is provided at one end of the extension section 61 away from the detection box 20, a connecting groove is provided at one end of the rotating section 62 close to the extension section 61, the connecting shaft 65 is arranged in the connecting groove, a first limiting groove is provided in an annular manner on the side wall of the connecting shaft 65, a second limiting groove is provided in an annular manner on the inner wall of the connecting groove, and a plurality of second balls 64 are provided in the first limiting groove and the second limiting groove. Through the above arrangement, the second balls 64 limit the positions of the extension section 61 and the rotating section 62 in the height direction, play a connecting effect on the extension section 61 and the rotating section 62, and can reduce the friction between the rotating section 62 and the extension section 61, thereby ensuring the rotation effect of the rotating section 62.

[0054] Specifically in this application, Figure 8 As shown, the detection box 20 is also provided with a socket 21, which is used to connect the wire 22, and the wire 22 is used to power the sensor in the detection box 20. The detection box 20 is also provided with a limit ring 23, which is sleeved on the wire 22, and the plug of the wire 22 is located between the socket 21 and the limit ring 23. A plurality of connecting rods 231 are also provided at intervals on the outer wall of the limit ring 23. A spring 24 is fixedly provided between the connecting rod 231 and the detection box 20, and the spring 24 is used to provide an elastic force to the limit ring 23 toward the socket 21, so as to ensure the stability of the connection of the wire 22 and prevent the wire 22 from falling off.

[0055] Reference Fig. 9 As shown, an opening 232 is provided on the side wall of the limiting ring 23 to facilitate the electric wire 22 to be installed into the limiting ring 23 from the side.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0058] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0059] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0060] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water level monitoring device, characterized in that: The water level monitoring device comprises: Mounting seat (10); A detection box (20) is fixedly mounted on the mounting seat (10), the detection box (20) extends in a horizontal direction, and a sensor is arranged inside the detection box (20); A floating member (30) is arranged below the detection box (20), and the floating member (30) cooperates with the sensor to detect the water level; A bird-repelling component (40) is arranged on the detection box (20), and the bird-repelling component (40) comprises a sound-generating part and a transmission part. The floating member (30) is drivingly connected to the transmission part. When the height position of the floating member (30) changes, the floating member (30) can drive the sound-generating part to generate noise through the transmission part.

2. The water level monitoring device according to claim 1, characterized in that: The bird-repelling assembly (40) comprises: A shell (41), the shell (41) is fixedly arranged on the detection box (20), and a side wall of the shell (41) is provided with a perforation; A hammer (42) and a sounding plate (43), wherein the hammer (42) is movably arranged in the housing (41), the sounding plate (43) and the hammer (42) are arranged correspondingly, and the sounding plate (43) and the hammer (42) cooperate to form the sounding part; A transmission shaft (44) and a transmission plate (45), wherein the transmission shaft (44) is horizontally inserted into the through hole, and the transmission plate (45) is eccentrically arranged on the side wall of the transmission shaft (44). The transmission shaft (44) is drivingly connected to the floating member (30), and the floating member (30) can drive the transmission shaft (44) and the transmission plate (45) to rotate. The transmission plate (45) is used to drive the hammer (42) to approach the sounding plate (43) to strike the sounding plate (43). The transmission shaft (44) and the transmission plate (45) cooperate to form the transmission part.

3. The water level monitoring device according to claim 2, characterized in that: A mounting plate (46) is also provided in the housing (41). The mounting plate (46) is movably provided in the housing (41). The hammer (42) is provided on the mounting plate (46). The transmission shaft (44) is located on a side of the mounting plate (46) away from the hammer (42). When the transmission plate (45) rotates in the direction of the mounting plate (46), the transmission plate (45) can drive the mounting plate (46) to move in the direction of the sound-generating plate (43).

4. The water level monitoring device according to claim 2, characterized in that: The bird-repelling assembly (40) further comprises: A connecting rope (47), one end of the connecting rope (47) is fixedly connected to the floating member (30), and the other end of the connecting rope (47) is fixedly connected to the side wall of the transmission shaft (44); A torsion spring (48), wherein the torsion spring (48) is arranged on the side wall of the housing (41), and the torsion spring (48) is fixedly connected to the side wall of the transmission shaft (44), and is used to provide an elastic force for the floating member (30) to move toward the housing (41).

5. The water level monitoring device according to claim 3, characterized in that: The plane where the transmission plate (45) is located is perpendicular to the axis of the transmission shaft (44), and the outer periphery of the transmission plate (45) and the mounting plate (46) that cooperate with each other is arc-shaped.

6. The water level monitoring device according to claim 1, characterized in that: The water level monitoring device also includes a guide rod (50), the floating member (30) is provided with a guide hole, the guide hole and the guide rod (50) are inserted into the guide hole, and the floating member (30) and the guide rod (50) are guided and matched.

7. The water level monitoring device according to claim 1, characterized in that: The water level monitoring device further comprises a column (60), and the floating member (30) comprises: A body (31), the body (31) having a through hole, the body (31) being sleeved on the column (60) through the through hole, the diameter of the through hole being larger than the diameter of the column (60), the body (31) having a plurality of ball grooves, the ball grooves being arranged at annular intervals on the outer periphery of the through hole; A first rolling ball (32), wherein a plurality of the first rolling balls (32) are provided, the first rolling balls (32) are arranged in the ball grooves, the plurality of the first rolling balls (32) are arranged in a one-to-one correspondence with the plurality of the ball grooves, and the plurality of the first rolling balls (32) are all in contact with the column (60).

8. The water level monitoring device according to claim 7, characterized in that: The column (60) comprises an extension section (61) and a rotating section (62) which are connected to each other. One end of the extension section (61) away from the rotating section (62) is fixedly connected to the detection box (20). The rotating section (62) can rotate around the axis of the column (60) relative to the extension section (61). The floating member (30) is provided with a driving structure to drive the rotating section (62) to rotate.

9. The water level monitoring device according to claim 8, characterized in that: A first magnet (33) is fixedly arranged on the inner wall of the through hole, and a plurality of second magnets (63) are arranged annularly at intervals on the side wall of the rotating section (62). The magnetic pole of the first magnet (33) facing the axis of the column (60) is opposite to the magnetic pole of the second magnet (63) away from the axis of the column (60), and the first magnet (33) forms a driving structure.

10. The water level monitoring device according to claim 8, characterized in that: A connecting shaft (65) is arranged at one end of the extension section (61) away from the detection box (20), and a connecting groove is arranged at one end of the rotating section (62) close to the extension section (61). The connecting shaft (65) is arranged in the connecting groove. A first limiting groove is arranged in an annular shape on the side wall of the connecting shaft (65), and a second limiting groove is arranged in an annular shape on the inner wall of the connecting groove. A plurality of second balls (64) are arranged in the first limiting groove and the second limiting groove.

Images