Water level detection device

Abstract

When the water level detection device is used, the base is fixed on a riverbed, the density of the graduated scale is smaller than that of a water body, so that the graduated scale can be automatically in a vertical state in the calm water body, the graduated scale can be scratched through the first through hole in the downward moving process of the floating body, and the graduated scale can be scratched through the second through hole in the upward moving process of the floating body. When the water level needs to be determined, the graduated scale can be scratched through the second through hole, so that numerical values on the graduated scale are clearer and not easy to misread, the measuring result can be more accurate by matching with the floating body which is not easy to be influenced by water surface fluctuation, and the scale value of the graduated scale corresponding to the floating body can be observed through the camera device when the water level needs to be determined; as the graduated scale is composed of a plurality of detachable rod pieces, the number of the rod pieces can be adjusted, so that the length and the measuring range of the graduated scale are adjusted, and the graduated scale is convenient to carry after being detached; in general, the water level detection device is larger in measurement range and more accurate in measurement result, and the graduated scale is convenient to carry and can be automatically in a vertical state in a calm water body.

Description

Technical Field

[0001] The utility model relates to the technical field of water level monitoring equipment, in particular to a water level detection device. Background Art

[0002] Water level refers to the elevation of the free water surface relative to a certain base surface. The distance between the water surface and the river bottom is called the water depth. The base surface used to calculate the water level can be a certain characteristic sea level elevation as the zero-point leveling base surface, called the absolute base surface, and the Yellow Sea base surface is commonly used. The elevation of a specific point can also be used as a reference to calculate the zero point of the water level, which is called the measuring station base surface. The water level is the most intuitive factor reflecting the water conditions of the water body, and its changes are mainly caused by the increase or decrease of the water volume in the water body. The water level process line is a curve that shows the change of water level at a certain place over time, with the horizontal coordinate being time and the vertical coordinate being water level.

[0003] Commonly used water level observation equipment includes a water ruler, which can also be called a scale. The water surface reading on the water ruler plus the elevation of the zero point of the water ruler is the water level value at that time. Existing equipment for water level observation using a scale often has the following problems during use: the scale is formed in one piece, and even if it is long, the measuring range is still limited and it is not convenient to carry; the surface of the water body will produce waves with certain ups and downs under the influence of factors such as wind, causing the water surface reading on the scale to change back and forth. After long-term use, the scale itself will be covered with dust, moss and other dirt, which will block the scale value, thereby affecting the accuracy of the measurement results; in order to be able to measure the changes in water level more accurately, the scale needs to be set vertically, and its angle needs to be constantly adjusted during the installation process, which is cumbersome, time-consuming and labor-intensive. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above problems, the utility model provides a water level detection device with a larger measuring range, more accurate measuring results, a scale that is easy to carry and can automatically be in a vertical state in calm water.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A water level detection device, comprising:

[0009] A base, the base being fixed on a riverbed at the bottom of the water body;

[0010] A universal member, wherein the universal member is embedded on the top of the base;

[0011] A scale, wherein the bottom of the scale is detachably connected to the universal member so that the angle of the scale relative to the base is adjustable, the scale is composed of a plurality of columnar rods, the plurality of rods are linearly arranged along the extension direction of the rods, and two adjacent rods are detachably connected so that the length of the scale is adjustable, and the density of the scale is less than the density of the water body, so that the scale can automatically be in a vertical state in a calm water body;

[0012] A floating body, wherein a first through hole is provided in the middle of the floating body and is slidably connected to the scale, and when the floating body moves downward, the scale can be cleaned by scraping through the first through hole;

[0013] A camera device, the camera device is arranged on the floating body and is used to observe the scale value of the scale corresponding to the floating body, so as to determine the water level;

[0014] A cover body, wherein the cover body is conical and the bottom size is larger than the top size, the bottom of the cover body is detachably connected to the float, the top is provided with a second through hole and is slidably connected to the scale, and when the cover body moves upward, the scale can be cleaned by scraping through the second through hole;

[0015] The buoyancy of the float is greater than the sum of the gravity of the float, the gravity of a component fixed relative to the float, the friction between the first through hole and the scale, and the friction between the second through hole and the scale, so that the float can move upward as the water level rises;

[0016] The sum of the gravity of the float and the gravity of a component fixed relative to the float is greater than the sum of the friction between the first through hole and the scale and the friction between the second through hole and the scale, so that the float can move downward as the water level drops.

[0017] Preferably, the base is provided with a plurality of third through holes, and the base and the riverbed at the bottom of the water body can be connected by threads or ground nails through the third through holes.

[0018] Preferably, a recessed first connecting portion is provided at one end of the rod, and a protruding second connecting portion is provided on the universal member and on the other end of the rod relative to the first connecting portion. The size of the first connecting portion and the size of the second connecting portion are both smaller than the size of the end of the rod. Different rods can be detachably connected through the first connecting portion and the second connecting portion, and the opposite ends of the two rods abut against each other after the connection, so as to ensure that the surface of the scale composed of the multiple rods is smooth and flat, so that the float and the cover can smoothly pass through the connecting part of the two rods.

[0019] Preferably, the scale values ​​on different rods are different, and the scale values ​​gradually increase along the extension direction of the scale away from the base, and different rods are provided with fluorescent coatings of the same color to facilitate rapid determination of the water level.

[0020] Preferably, the scale values ​​on different rods are the same, and the scale values ​​on the same rod gradually increase along the extension direction of the scale away from the base. Different rods are provided with fluorescent coatings of different colors to facilitate rapid determination of the water level.

[0021] Preferably, the camera device is composed of a plurality of cameras, and the plurality of cameras are evenly distributed on the float so that the weight of the float is evenly distributed, thereby maintaining a horizontal state. The cameras are rechargeable cameras with waterproof and night vision functions.

[0022] Preferably, the cover is made of a transparent material to facilitate observation of the scale on the ruler. A plurality of fourth through holes are provided on the side of the cover for heat dissipation. The fourth through holes are inclined relative to the horizontal plane and the height of the outer end is smaller than the height of the inner end to prevent rainwater from entering the interior of the cover.

[0023] Preferably, it also includes:

[0024] A first magnetic member, wherein the first magnetic member is disposed on the top of the floating body;

[0025] The second magnetic member is arranged at the bottom of the cover body, and the first magnetic member and the second magnetic member can be connected by magnetic attraction, so as to fix the relative position of the floating body and the cover body.

[0026] Preferably, the cover is made of a transparent material, and the water level detection device further comprises:

[0027] A plurality of buzzers, each of which is arranged on the floating body and evenly distributed, so that the weight of the floating body is evenly distributed, thereby maintaining a horizontal state, and each of which is electrically connected to the camera device, so that when the scale value of the scale corresponding to the floating body reaches a predetermined value, the plurality of buzzers emit a buzzer;

[0028] Multiple light alarms are arranged on the floating body and are evenly distributed so that the weight of the floating body is evenly distributed, thereby maintaining a horizontal state. Multiple light alarms are electrically connected to the camera device so that when the scale value of the scale corresponding to the floating body reaches a predetermined value, the multiple light alarms emit light.

[0029] Preferably, a locking assembly is further included, the locking assembly is mounted on the base and arranged corresponding to the universal member, and is used to lock and fix the universal member, thereby fixing the relative position of the scale and the base, and the locking assembly includes:

[0030] A threaded hole, wherein the threaded hole is arranged on a side of the base, one end of the threaded hole is connected to the universal member, and the other end of the threaded hole opposite to the universal member is connected to the outside world;

[0031] An adjusting screw is engaged in the threaded hole. By rotating the adjusting screw, the adjusting screw can be brought close to and abutted against the universal joint, thereby locking and fixing the universal joint. The adjusting screw can also be moved away from the universal joint, thereby releasing the locking and fixing of the universal joint.

[0032] (III) Beneficial effects

[0033] Compared with the prior art, the beneficial effects of the utility model are:

[0034] During actual use, the base is fixed at a designated position on the riverbed at the bottom of the water body. Since the density of the scale is less than the density of the water body, the scale can automatically be in a vertical state in calm water. Since the buoyancy of the float is greater than the sum of the gravity of the float, the gravity of the component fixed relative to the float, the friction between the first through hole and the scale, and the friction between the second through hole and the scale, and the sum of the gravity of the float and the gravity of the component fixed relative to the float is greater than the sum of the friction between the first through hole and the scale, and the friction between the second through hole and the scale, the float will move up and down with the rise and fall of the water level. In the process of the float moving downward, the scale can be scratched and cleaned through the first through hole, and the cleaned impurities will fall directly into the water body under the influence of its own gravity, avoiding affecting the weight distribution and descending movement of the float. In the process of the float moving upward, the cover can scratch and clean the scale through the second through hole, and the cleaned impurities will fall into the water body with the conical cover The inclined side of the body falls into the water body to avoid affecting the weight distribution and upward movement of the floating body. When the staff needs to determine the water level, they can observe the scale value of the scale corresponding to the floating body through the camera device; since the scale is composed of a plurality of detachable rods, the number of rods can be flexibly adjusted according to factors such as the water level rise and the distance between the bottom of the water and the surface of the water, so as to adjust the length and measurement range of the scale, so that the measurement range is larger, and it is convenient to carry after disassembly; since the floating body has a certain area, it can offset the influence of waves to a certain extent, and the numerical fluctuations generated during measurement are smaller. In addition, since the cover body will scratch and clean the scale during the upward movement and the floating body during the downward movement, the values ​​on the scale are clearer and less likely to be misread, so that the measurement results are more accurate; in general, the water level detection device in the present application has a larger measurement range, more accurate measurement results, and the scale is easy to carry and can automatically be in a vertical state in calm waters. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0036] Figure 1 A three-dimensional diagram of the water level detection device of the utility model is shown;

[0037] Figure 2 Shows Figure 1 A three-dimensional diagram of the water level detection device from another angle;

[0038] Figure 3 Shows Figure 1 A three-dimensional view of the middle base;

[0039] Figure 4 Shows Figure 1 A three-dimensional view of the middle rod;

[0040] Figure 5 Shows Figure 1 A three-dimensional diagram of the middle floating body, the camera device, the first magnetic member, the buzzer and the light alarm;

[0041] Figure 6 Shows Figure 5 A three-dimensional cutaway view of a vertical section;

[0042] Figure 7 Shows Figure 1 A three-dimensional diagram of the middle cover body and the second magnetic member;

[0043] Figure 8 Shows Figure 7 A three-dimensional view of the middle cover body and the second magnetic member from another angle;

[0044] Fig. 9 Shows Figure 7 A plan view of a vertical section of

[0045] Fig.10 Shows Figure 1 A three-dimensional view of the middle adjusting screw.

[0046] In the figure: 1. base; 2. universal member; 3. scale; 31. rod; 311. first connecting part; 312. second connecting part; 4. float; 5. camera device; 51. camera; 6. cover; 7. first through hole; 8. second through hole; 9. third through hole; 10. fourth through hole; 11. first magnetic member; 12. second magnetic member; 13. buzzer; 14. light alarm; 15. locking assembly; 151. threaded hole; 152. adjusting screw; 16. positioning column; 17. positioning hole; 18. handle. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] See attached Figure 1 , Attachment Figure 2 , Attachment Figure 5 and attached Figure 7The utility model embodiment discloses a water level detection device, including a base 1, a universal member 2, a scale 3, a floating body 4, a camera device 5, and a cover body 6. The base 1 is fixed on the riverbed at the bottom of the water body; the universal member 2 is embedded in the top of the base 1; the bottom of the scale 3 is detachably connected to the universal member 2, so that the angle of the scale 3 relative to the base 1 is adjustable, the scale 3 is composed of a plurality of columnar rods 31, and the plurality of rods 31 are linearly arranged along the extension direction of the rods 31. Two adjacent rods 31 are detachably connected so that the length of the scale 3 is adjustable, and the density of the scale 3 is less than the density of the water body, so that the scale 3 can be automatically in a vertical state in a calm water body; a first through hole 7 is provided in the middle of the floating body 4 and is slidably connected to the scale 3, and the floating body 4 can scrape and clean the scale 3 through the first through hole 7 when it moves downward; the camera device 5 is arranged on the floating body The cover body 4 is used to observe the scale value of the scale 3 corresponding to the float 4, so as to determine the water level; the cover body 6 is conical and the bottom size is larger than the top size. The bottom of the cover body 6 can be detachably connected to the float 4, and the top is provided with a second through hole 8 and is slidably connected to the scale 3. When the cover body 6 moves upward, the scale 3 can be scratched and cleaned through the second through hole 8; the buoyancy of the float 4 is greater than the sum of the gravity of the float 4, the gravity of the component fixed relative to the float 4, the friction between the first through hole 7 and the scale 3, and the friction between the second through hole 8 and the scale 3, so that the float 4 can move upward as the water level rises; the sum of the gravity of the float 4 and the gravity of the component fixed relative to the float 4 is greater than the sum of the friction between the first through hole 7 and the scale 3, and the friction between the second through hole 8 and the scale 3, so that the float 4 can move downward as the water level drops.

[0049] In actual use, the base 1 is fixed at a designated position on the riverbed at the bottom of the water body. Since the density of the scale 3 is less than the density of the water body, the scale 3 can be automatically in a vertical state in a calm water body. Since the buoyancy of the float 4 is greater than the sum of the gravity of the float 4, the gravity of the component fixed relative to the float 4, the friction between the first through hole 7 and the scale 3, and the friction between the second through hole 8 and the scale 3, and the sum of the gravity of the float 4 and the gravity of the component fixed relative to the float 4 is greater than the gravity of the float 4, the friction between the first through hole 7 and the scale 3 and the friction between the second through hole 8 and the scale 3, and the gravity of the float 4 and the gravity of the component fixed relative to the float 4 are greater than the gravity of the float 4. The friction between the first through hole 7 and the scale 3 and the friction between the second through hole 8 and the scale 3 are the sum of the friction between the first through hole 7 and the scale 3, so the float 4 will move up and down with the rise and fall of the water level. In the process of the float 4 moving downward, the scale 3 can be scraped and cleaned through the first through hole 7, and the cleaned impurities will fall directly into the water under the influence of their own gravity, avoiding affecting the weight distribution and downward movement of the float 4. In the process of the float 4 moving upward, the cover 6 can scrape and clean the scale 3 through the second through hole 8, and the cleaned impurities will fall into the water with the water. The inclined side of the conical cover 6 falls into the water body to avoid affecting the weight distribution and upward movement of the float 4. When the staff needs to determine the water level, they can observe the scale value of the scale 3 corresponding to the float 4 through the camera device 5; since the scale 3 is composed of a plurality of detachable rods 31, the number of rods 31 can be flexibly adjusted according to factors such as the water level increase and the distance between the bottom of the water and the surface of the water, thereby adjusting the length and measurement range of the scale 3, so that its measurement range is larger, and it is easy to carry after disassembly; since the float 4 has a certain area, it can offset the influence of waves to a certain extent, and the numerical fluctuations generated during measurement are smaller. In addition, since the cover 6 will scratch and clean the scale 3 during the upward movement and the float 4 during the downward movement, the numerical value on the scale 3 is clearer and not easy to misread, so that the measurement result is more accurate; in general, the water level detection device in the present application has a larger measurement range, more accurate measurement results, and the scale is easy to carry and can automatically be in a vertical state in calm water.

[0050] It should be noted that the camera device 5 in the present application is a prior art, has a night vision function and can remotely observe the picture, which will not be described in detail here.

[0051] In addition, since the cover body 6 in the present application is of conical design, it can also prevent debris from falling onto the float 4 and prevent birds from standing, thereby affecting the weight distribution of the float 4 and making it difficult for the float 4 to move up and down.

[0052] See attached Figure 3 There are various ways of connection and fixing. In order to enable the base 1 to be firmly fixed on the riverbed at the bottom of the water body, the following design is carried out in this embodiment. Specifically, a plurality of third through holes 9 are provided on the base 1, and the base 1 and the riverbed at the bottom of the water body can be threadedly connected or nailed through the third through holes 9.

[0053] It should be noted that, based on the above scheme, when performing threaded connection, the ground of the riverbed should be hard enough to avoid loosening. For example, cement can be laid on the riverbed and the head of the bolt can be inverted and embedded in the cement. At this time, it is only necessary to pass the threaded section of the bolt through the third through hole 9 and then connect and fix it with a nut; when performing ground nail connection, if the factor of whether the riverbed ground is hard is to be ignored, the length of the ground nail must be long enough to avoid the ground nail being inserted into soft soil, resulting in insufficient fixation of the base 1. In addition, the ground nail can be nailed into the ground at the bottom of the riverbed at an angle, so that the connection between the base 1 and the riverbed ground is more stable and firm; whether it is a threaded connection or a ground nail connection, it has the advantages of simple structure and reliable connection.

[0054] See attached Figure 1 , Attachment Figure 3 and attached Figure 4 There are various structures for detachable connection, and one of them is introduced in this embodiment. Specifically, a recessed first connecting portion 311 is provided at one end of the rod 31, and a protruding second connecting portion 312 is provided on the universal member 2 and at the other end of the rod 31 opposite to the first connecting portion 311. The size of the first connecting portion 311 and the size of the second connecting portion 312 are both smaller than the size of the end of the rod 31. Different rods 31 can be detachably connected through the first connecting portion 311 and the second connecting portion 312, and the opposite ends of the two rods 31 are abutted against each other after the connection.

[0055] Through the design of the above structure, since the first connecting portion 311 is concave and the second connecting portion 312 is convex, and the size of the first connecting portion 311 and the size of the second connecting portion 312 are both smaller than the size of the end of the rod 31, different rods 31 can be detachably connected through the first connecting portion 311 and the second connecting portion 312, and the opposite ends of the two rods 31 after connection are abutted against each other, so the surface of the scale 3 composed of multiple rods 31 can be kept smooth and flat, so that the float 4 and the cover 6 can smoothly pass through the connection part of the two rods 31.

[0056] In order to determine the water level value more quickly, the following design is carried out in this embodiment. Specifically, the scale values ​​on different rods 31 are different, and the scale values ​​gradually increase along the extension direction of the scale 3 away from the base 1. Different rods 31 are provided with fluorescent coatings of the same color to facilitate rapid determination of the water level.

[0057] Through the design of the above structure, even if the camera device 5 does not have a night vision function, the scale values ​​on the scale 3 can be clearly seen through the fluorescent coating, and the scale values ​​on different rods 31 are different, and the scale values ​​gradually increase along the extension direction of the scale 3 away from the base 1. Therefore, the height of the water level can be directly determined, which is convenient and quick.

[0058] There is more than one method that can determine the water level value more quickly. The following design is carried out in this embodiment. Specifically, the scale values ​​on different rods 31 are the same, and the scale values ​​on the same rod 31 gradually increase along the extension direction of the scale 3 away from the base 1. Different rods 31 are provided with fluorescent coatings of different colors to facilitate rapid determination of the water level.

[0059] Through the design of the above structure, even if the camera device 5 does not have a night vision function, the scale values ​​on the scale ruler 3 can be clearly seen through the fluorescent coating. Because the scale values ​​on different rods 31 are the same, the production of the rods 31 is more convenient and quick. After connection and assembly, the rod 31 corresponding to the float 4 can be determined according to the color of the fluorescent coating. The water level can be determined by adding the scale value to the total length of the previous rods 31, and the measurement result can still be quickly obtained.

[0060] Furthermore, the above two solutions can be combined to make the scale values ​​on different rods 31 different, and different rods 31 are provided with fluorescent coatings of different colors, which can also quickly determine the water level.

[0061] See attached Figure 5 There are many types of camera devices 5, and one of them is introduced in this embodiment. Specifically, the camera device 5 is composed of multiple cameras 51, and the multiple cameras 51 are evenly distributed on the floating body 4. The camera 51 is a rechargeable camera with waterproof function and night vision function.

[0062] Through the design of the above structure, the weight of the float 4 can be evenly distributed, thereby maintaining a horizontal state. Since the camera 51 is a rechargeable camera with waterproof and night vision functions, no matter whether it is splashing water, dim light, or not plugged in, it will not affect the normal operation of the camera device 5, and it is more convenient to use. Since the camera 51 is also a prior art, its working principle and the like will not be repeated here.

[0063] See attached Figure 1 And attached Figure 7 -Attached Fig. 9 The water surface is usually directly exposed to the outside world and subjected to the sun's exposure, and the cover body 6 and the float 4 are connected to form a basically closed space. Therefore, after a long period of exposure to the sun, the temperature inside the cover body 6 will greatly increase, causing adverse effects on various components on the float 4. In order to solve the above problems, the following design is carried out in this embodiment. Specifically, the cover body 6 is made of a transparent material to facilitate observation of the scale on the scale 3. A plurality of fourth through holes 10 are provided on the side of the cover body 6. The fourth through holes 10 are inclined relative to the horizontal plane and the height of the outer end is less than the height of the inner end.

[0064] Through the design of the above structure, the fourth through hole 10 can not only dissipate heat, but also prevent rainwater from entering the cover body 6 because the fourth through hole 10 is inclined relative to the horizontal plane and the height of the outer end is smaller than the height of the inner end.

[0065] See attached Figure 2 And attached Figure 5 -Attached Fig. 9 There are various ways and structures of detachable connection. In order to more clearly introduce how the cover body 6 and the float 4 are detachably connected, one of the structures is introduced in this embodiment. Specifically, it also includes a first magnetic member 11 and a second magnetic member 12. The first magnetic member 11 is arranged on the top of the float 4; the second magnetic member 12 is arranged on the bottom of the cover body 6. The first magnetic member 11 and the second magnetic member 12 can be magnetically connected to fix the relative position of the float 4 and the cover body 6.

[0066] Through the design of the above structure, the cover body 6 can be directly placed on the float 4 for connection, which has a simple structure, reliable connection, and convenient disassembly and assembly; during the connection process, since the cover body 6 and the float 4 are both mounted on the scale teeth 3, there is no need to align them, and the first magnetic part 11 and the second magnetic part 12 can be accurately connected.

[0067] See attached Figure 2 , Attachment Figure 5 and attached Figure 8 Based on the above scheme, in order to prevent the cover body 6 and the floating body 4 from rotating relative to each other after being connected, a plurality of positioning posts 16 can be provided on the top of the floating body 4, and a plurality of positioning holes 17 corresponding to the positioning posts 16 can be provided on the bottom of the cover body 6, so that after the cover body 6 and the floating body 4 are connected, the positioning posts 16 can be inserted into the positioning holes 17, thereby preventing the cover body 6 and the floating body 4 from rotating relative to each other after being connected.

[0068] See attached Figure 5 In order to further enrich the functions of the water level detection device, the following designs are carried out in this embodiment. Specifically, the cover body 6 is made of a transparent material. The water level detection device also includes multiple buzzers 13 and multiple light alarms 14. The multiple buzzers 13 are all arranged on the float 4 and are evenly distributed. The multiple buzzers 13 are all electrically connected to the camera device 5, so that when the scale value of the scale 3 corresponding to the float 4 reaches a predetermined value, the multiple buzzers 13 buzz; the multiple light alarms 14 are all arranged on the float 4 and are evenly distributed. The multiple light alarms 14 are all electrically connected to the camera device 5, so that when the scale value of the scale 3 corresponding to the float 4 reaches a predetermined value, the multiple light alarms 14 emit light.

[0069] Through the design of the above structure, since multiple buzzers 13 are arranged on the float 4 and are evenly distributed, and multiple light alarms 14 are arranged on the float 4 and are evenly distributed, the weight distribution of the float 4 is even, and it can maintain a horizontal state. When moving up and down, the friction between the float 4 and the scale 3 will not increase due to tilt; when the scale value of the scale 3 corresponding to the float 4 reaches a predetermined value, the multiple buzzers 13 will sound and the multiple light alarms 14 will emit lights, thereby reminding the corresponding staff to implement protective measures in time.

[0070] See attached Figure 1 -Attached Figure 3 In order to further increase the application scope of the water level detection device, the following design is carried out in this embodiment. Specifically, it also includes a locking component 15. The locking component 15 is installed on the base 1 and is arranged corresponding to the universal member 2. It is used to lock and fix the universal member 2, so as to fix the relative position of the scale 3 and the base 1. The locking component 15 includes a threaded hole 151 and an adjusting screw 152. The threaded hole 151 is arranged on the side of the base 1. One end of the threaded hole 151 is connected to the universal member 2, and the other end of the threaded hole 151 relative to the universal member 2 is connected to the outside; the adjusting screw 152 is engaged in the threaded hole 151. By rotating the adjusting screw 152, the adjusting screw 152 can be brought close to and abutted against the universal member 2, so as to lock and fix the universal member 2, and the adjusting screw 152 can also be moved away from the universal member 2, so as to release the locking and fixing of the universal member 2.

[0071] Through the design of the above structure, the scale 3 can be adjusted to a vertical state first, and then the universal member 2 can be locked and fixed, so that the water level detection device can still be used normally in water bodies with fast water flow and large water surface fluctuations, thereby increasing its scope of application.

[0072] See attached Fig.10 Furthermore, a plurality of handles may be provided at the head of the adjusting screw 152 to increase the lever arm so that the staff can easily turn the adjusting screw 152 with bare hands.

[0073] 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.

[0074] 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. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0075] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water level detection device, characterized in that: include: A base, the base being fixed on a riverbed at the bottom of the water body; A universal member, wherein the universal member is embedded on the top of the base; A scale, wherein the bottom of the scale is detachably connected to the universal member so that the angle of the scale relative to the base is adjustable, the scale is composed of a plurality of columnar rods, the plurality of rods are linearly arranged along the extension direction of the rods, and two adjacent rods are detachably connected so that the length of the scale is adjustable, and the density of the scale is less than the density of the water body, so that the scale can automatically be in a vertical state in a calm water body; A floating body, wherein a first through hole is provided in the middle of the floating body and is slidably connected to the scale, and when the floating body moves downward, the scale can be cleaned by scraping through the first through hole; A camera device, the camera device is arranged on the floating body and is used to observe the scale value of the scale corresponding to the floating body, so as to determine the water level; A cover body, wherein the cover body is conical and the bottom size is larger than the top size, the bottom of the cover body is detachably connected to the float, the top is provided with a second through hole and is slidably connected to the scale, and when the cover body moves upward, the scale can be cleaned by scraping through the second through hole; The buoyancy of the float is greater than the sum of the gravity of the float, the gravity of a component fixed relative to the float, the friction between the first through hole and the scale, and the friction between the second through hole and the scale, so that the float can move upward as the water level rises; The sum of the gravity of the float and the gravity of a component fixed relative to the float is greater than the sum of the friction between the first through hole and the scale and the friction between the second through hole and the scale, so that the float can move downward as the water level drops.

2. A water level detection device according to claim 1, characterized in that: The base is provided with a plurality of third through holes, and the base and the riverbed at the bottom of the water body can be connected by threads or ground nails through the third through holes.

3. A water level detection device according to claim 1, characterized in that: A recessed first connection portion is provided at one end of the rod, and a protruding second connection portion is provided on the universal member and at the other end of the rod relative to the first connection portion. The size of the first connection portion and the size of the second connection portion are both smaller than the size of the end of the rod. Different rods can be detachably connected through the first connection portion and the second connection portion, and the opposite ends of the two rods after connection abut against each other to ensure that the surface of the scale composed of the multiple rods is smooth and flat, so that the float and the cover can smoothly pass through the connection part of the two rods.

4. A water level detection device according to claim 1, characterized in that: The scale values ​​on different rods are different, and the scale values ​​gradually increase along the extension direction of the scale away from the base. Different rods are provided with fluorescent coatings of the same color to facilitate rapid determination of the water level.

5. A water level detection device according to claim 1, characterized in that: The scale values ​​on different rods are the same, and the scale values ​​on the same rod gradually increase along the extension direction of the scale away from the base. Different rods are provided with fluorescent coatings of different colors to facilitate rapid determination of the water level.

6. A water level detection device according to claim 1, characterized in that: The camera device is composed of a plurality of cameras, which are evenly distributed on the float so that the weight of the float is evenly distributed, thereby maintaining a horizontal state. The cameras are rechargeable cameras with waterproof and night vision functions.

7. A water level detection device according to claim 1, characterized in that: The cover is made of a transparent material to facilitate observation of the scale on the ruler. A plurality of fourth through holes are provided on the side of the cover for heat dissipation. The fourth through holes are inclined relative to the horizontal plane and the height of the outer end is smaller than the height of the inner end to prevent rainwater from entering the interior of the cover.

8. A water level detection device according to any one of claims 1 to 7, characterized in that: Also includes: A first magnetic member, wherein the first magnetic member is disposed on the top of the floating body; The second magnetic member is arranged at the bottom of the cover body, and the first magnetic member and the second magnetic member can be connected by magnetic attraction, so as to fix the relative position of the floating body and the cover body.

9. A water level detection device according to any one of claims 1 to 7, characterized in that: The cover is made of a transparent material. The water level detection device also includes: A plurality of buzzers, each of which is arranged on the floating body and evenly distributed, so that the weight of the floating body is evenly distributed, thereby maintaining a horizontal state, and each of which is electrically connected to the camera device, so that when the scale value of the scale corresponding to the floating body reaches a predetermined value, the plurality of buzzers emit a buzzer; Multiple light alarms are arranged on the floating body and are evenly distributed so that the weight of the floating body is evenly distributed, thereby maintaining a horizontal state. Multiple light alarms are electrically connected to the camera device so that when the scale value of the scale corresponding to the floating body reaches a predetermined value, the multiple light alarms emit light.

10. A water level detection device according to any one of claims 1 to 7, characterized in that: It also includes a locking assembly, which is mounted on the base and arranged corresponding to the universal member, and is used to lock and fix the universal member, thereby fixing the relative position of the scale and the base, and the locking assembly includes: A threaded hole, wherein the threaded hole is arranged on a side of the base, one end of the threaded hole is connected to the universal member, and the other end of the threaded hole opposite to the universal member is connected to the outside world; An adjusting screw is engaged in the threaded hole. By rotating the adjusting screw, the adjusting screw can be brought close to and abutted against the universal joint, thereby locking and fixing the universal joint. The adjusting screw can also be moved away from the universal joint, thereby releasing the locking and fixing of the universal joint.

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