River flow test water level early warning device

Abstract

The utility model relates to a river flow test water level early warning device, and belongs to the technical field of water level test.The river flow test water level early warning device comprises an extension pipe, an early warning device fixedly connected to the extension pipe and a floater slidably installed in the extension pipe, a communicating pipe is fixedly installed at the lower end of the extension pipe, and a water level opening is formed in the lower end of the communicating pipe in a penetrating mode; and the communicating pipe communicates with the extension pipe, and an electric push rod is installed in the floater. According to the riverway flow test water level early warning device, the extension pipe is arranged to communicate up and down and balance air pressure, so that the water level is kept at the same position as the riverway water level in the extension pipe, and rapid change of the water level caused by stormy waves is reduced through the extension pipe; meanwhile, the electric push rod and the sliding block are arranged in the floater arranged in the extension pipe to make contact with the extension pipe, friction resistance is increased, the instantaneous water level change caused by wind wave impact is reduced, and therefore the water level early warning false alarm phenomenon is effectively controlled, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of water level measurement, and in particular to a water level early warning device for river flow measurement. Background Art

[0002] A river flow test is a method used to measure the amount of water in a river. By measuring the speed and depth of water flowing in a river, the flow of the river can be calculated. A tachometer can determine the speed of the water by measuring the time it takes for water to pass a fixed point, and the depth of the river can be determined by the scale value of the river water level. By combining these two parameters, the flow of the river can be calculated.

[0003] The utility model with the search announcement number CN214066255U is a river flow measurement water level warning device, which belongs to the field of water level monitoring technology and solves the problem that the existing river flow measurement water level warning device cannot timely understand the water level change remotely. The technical points are: it includes a column, a top box is horizontally fixedly installed on the top of the column, a bottom plate is horizontally welded under the column, a guide rod is fixedly connected between the top box and the bottom plate, a sliding sleeve on the outer side of the guide rod is provided with a slide plate, a floating plate is horizontally welded on the side of the slide plate away from the column, a rotating box is fixedly installed at the bottom of the floating plate, a rotating assembly is arranged inside the rotating box, the bottom of the rotating assembly is fixedly connected to the flow monitoring box through a connecting block, a flow monitoring assembly is arranged inside the flow monitoring box, the top of the top box is fixedly connected to the solar panel through a column, and a battery, an information receiving processor and an information transmitter are installed inside the top box, which has the advantages of efficient repeated monitoring, wireless remote monitoring, remote and timely warning and improved work efficiency.

[0004] The above patent application can remotely monitor the changes in river flow and water level through a first contact sensor, a second contact sensor, an information receiving processor, an information transmitter and a displacement sensor. However, since the early warning device directly responds to the position of the water level by sliding the slide along the guide rod, and since there are waves in the river water flow, the floating plate under the impact of the water flow will produce a large swing, resulting in a false signal. Therefore, a river flow test water level early warning device is proposed to solve the above-mentioned problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present application provides a river flow measurement and water level warning device, which has the advantages of reducing false alarms of water level warnings, etc.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a water level warning device for measuring river flow, comprising an extension pipe, an alarm device fixedly connected to the extension pipe, and a float slidably installed in the extension pipe, a connecting pipe is fixedly installed on the lower end of the extension pipe, a water level port is penetrated through the lower end of the connecting pipe, and the connecting pipe is connected to the extension pipe;

[0007] An electric push rod is installed inside the float, and the outside of the electric push rod is fixedly connected to a chassis through a bracket. A floating ring is also provided on the chassis. A push plate is fixedly installed on the power end of the electric push rod, and a slider is slidably installed on the top of the chassis. A push rod is hinged between the slider and the push plate.

[0008] Furthermore, a flange is fixedly mounted on the outside of the extension tube, and a mounting frame for supporting the extension tube is fixedly mounted on the outside of the flange by bolts.

[0009] Furthermore, the floating ring adopts an inflatable hollow bag, and the bottom part of the floating ring and the chassis are bonded and fixed to each other.

[0010] Furthermore, a circuit board is installed in the float, and a wire extends from the lower end of the float and penetrates below the chassis.

[0011] Furthermore, there are a plurality of push rods and sliders, and the plurality of push rods are staggered with respect to the bracket.

[0012] Furthermore, the upper end of the extension tube should have an air hole.

[0013] Furthermore, a baffle is fixedly installed inside the connecting pipe.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The river flow measurement and water level warning device maintains the water level in the extension pipe at the same position as the river water level by arranging an extension pipe to connect the upper and lower parts of the extension pipe to achieve air pressure balance, thereby reducing the rapid change of the water level caused by wind and waves through the extension pipe. At the same time, the float arranged in the extension pipe has an electric push rod and a slider structure to contact the extension pipe to increase friction and reduce the instantaneous change of the water level caused by the impact of wind and waves, thereby effectively controlling the occurrence of false alarms of water level warnings and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of this application;

[0017] Figure 2 This is a schematic diagram of the partial structure of the connecting pipe of this application;

[0018] Figure 3 This is a schematic diagram of the structure of the float in this application;

[0019] Figure 4 This is a top view of the transverse cross-sectional structure of the floating ring of the present application.

[0020] In the figure: 1. mounting frame; 2. flange; 3. extension pipe; 4. early warning device; 5. connecting pipe; 6. water level port; 7. baffle; 8. float; 9. wire; 10. chassis; 11. floating ring; 12. bracket; 13. electric push rod; 14. push plate; 15. push rod; 16. slider. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] See also Figures 1 to 4 A river flow measurement and water level warning device in this embodiment includes an extension tube 3, an alarm device 4 fixedly connected to the extension tube 3, and a float 8 slidably installed in the extension tube 3. Specifically, the alarm device 4 is provided with a wireless generator for sending a water level warning signal, and a distance sensor for sensing the position of the float 8 is installed in the alarm device 4.

[0023] The position of the float 8 in the extension tube 3 is determined and the water level is calculated.

[0024] In this embodiment, a flange 2 is fixedly installed on the outside of the extension pipe 3, and a mounting frame 1 for supporting the extension pipe 3 is fixedly installed on the outside of the flange 2 by bolts. The mounting frame 1 is installed on the side wall of the river channel so that the lower end of the extension pipe 3 can extend into the water body.

[0025] It should be noted that a connecting pipe 5 is fixedly installed on the lower end of the extension pipe 3, a water level port 6 is opened through the lower end of the connecting pipe 5, and the connecting pipe 5 is connected to the extension pipe 3. A baffle 7 is fixedly installed inside the connecting pipe 5 to block impurities and prevent the float 8 from falling out.

[0026] In the present application, the lower end of the extension pipe 3 is connected to the river water body through the connecting pipe 5. At this time, the upper end of the extension pipe 3 should have an air hole to facilitate the water body to maintain the water level height in the extension pipe 3, so that the water level can be accurately reflected in the extension pipe 3, and external water wave interference can be avoided to reduce false alarms.

[0027] In this embodiment, an electric push rod 13 is installed inside the float 8 , and the outside of the electric push rod 13 is fixedly connected to a chassis 10 via a bracket 12 . A floating ring 11 is also provided on the chassis 10 to provide buoyancy to the float 8 .

[0028] In this embodiment, the floating ring 11 is an inflatable hollow bag, and the bottom part of the floating ring 11 and the bottom plate 10 are bonded and fixed to each other.

[0029] This design allows the floating ring 11 to be displaced and adjusted to a certain extent relative to the chassis 10 , so that the floating ring 11 can change the contact friction resistance relative to the inner wall of the extension tube 3 when the internal air pressure is constant.

[0030] It should be noted that a circuit board is also installed in the float 8, and a wire 9 extends from the lower end of the float 8 and penetrates the bottom of the chassis 10. Specifically, there are two wires 9, and one end of the two wires 9 is connected to the circuit board for contacting the water body to generate a circuit. At the same time, the electric push rod 13 is controlled by the circuit board inside the float 8.

[0031] In a specific implementation, the electric push rod 13 can be controlled by the wire 9 below the float 8 contacting the water body, and when the water level moves down, the wire 9 completes a short circuit and stops controlling the electric push rod 13 .

[0032] In this embodiment, a push plate 14 is fixedly mounted on the power end of the electric push rod 13 , a slider 16 is slidably mounted on the top of the chassis 10 , and a push rod 15 is hinged between the slider 16 and the push plate 14 .

[0033] Preferably, there are several push rods 15 and sliders 16, and the several push rods 15 are staggered in arrangement with respect to the bracket 12, and can be squeezed by the push plate 14, so that the push rods 15 push the slider 16 to squeeze the floating ring 11, thereby increasing the sliding friction of the float 8 relative to the extension tube 3, thereby reducing the rapid changes in water level caused by wind and waves, which may lead to false water level warnings.

[0034] The working principle of the above embodiment is:

[0035] By installing the extension pipe 3 on the side of the river channel through the mounting frame 1, the lower end of the extension pipe 3 extends into the water body through the connecting pipe 5, and the water body rises in the extension pipe 3 to the water level flush with the water surface of the river channel. At this time, the float 8 located in the extension pipe 3 is subjected to buoyancy and responds to the water level signal as the water level rises. When the wire 9 at the lower end of the float 8 contacts the water body and conducts, the circuit board controls the electric push rod 13, and the electric push rod 13 pushes the push plate 14 on the power end to move, and the push plate 14 continuously squeezes the floating ring 11 through the push rod 15 and the slider 16 Fitting to the inner wall of the extension tube 3, the float 8 has a certain friction resistance to resist the rapid change of water level caused by the impact of wind and waves, but because the friction resistance is less than the buoyancy provided by the floating ring 11, the float 8 will still change with the rising water level. When the water level drops, the wire 9 can complete the circuit break, and at this time the electric push rod 13 can lose control and will not continue to push the push plate 14, thereby causing the floating ring 11 to lose its extrusion, thereby reducing the friction resistance of the float 8, so that the float 8 slides along the extension tube 3 to the falling water level to accurately reflect the water level.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A water level warning device for measuring river flow, comprising an extension pipe (3), an early warning device (4) fixedly connected to the extension pipe (3), and a float (8) slidably installed in the extension pipe (3), characterized in that: A connecting pipe (5) is fixedly mounted on the lower end of the extension pipe (3), a water level port (6) is provided through the lower end of the connecting pipe (5), and the connecting pipe (5) is connected to the extension pipe (3); An electric push rod (13) is installed inside the float (8), and the outside of the electric push rod (13) is fixedly connected to a chassis (10) through a bracket (12). A floating ring (11) is also provided on the chassis (10). A push plate (14) is fixedly installed on the power end of the electric push rod (13). A slider (16) is also slidably installed on the top of the chassis (10), and a push rod (15) is hinged between the slider (16) and the push plate (14).

2. A river flow measurement water level warning device according to claim 1, characterized in that: A flange (2) is also fixedly mounted on the outside of the extension tube (3), and a mounting frame (1) for supporting the extension tube (3) is fixedly mounted on the outside of the flange (2) by bolts.

3. A river flow measurement water level warning device according to claim 1, characterized in that: The floating ring (11) is an inflated hollow bag, and the bottom part of the floating ring (11) and the bottom plate (10) are bonded and fixed to each other.

4. A river flow measurement water level warning device according to claim 1, characterized in that: A circuit board is also installed in the float (8), and a wire (9) extends from the lower end of the float (8) and penetrates below the chassis (10).

5. A river flow measurement and water level warning device according to claim 1, characterized in that: The number of the push rods (15) and the sliding blocks (16) is multiple, and the multiple push rods (15) are staggered and arranged with respect to the bracket (12).

6. A river flow measurement and water level warning device according to claim 1, characterized in that: The upper end of the extension tube (3) should have an air hole.

7. A river flow measurement and water level warning device according to claim 1, characterized in that: A baffle (7) is fixedly installed inside the connecting pipe (5).

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