Water level detection device for water conservancy surveying and mapping

Abstract

The invention relates to a water level detection device for water conservancy surveying and mapping, which comprises a fixed trolley, a winch rope, a movable trolley and a buoyancy tank, one end of the winch rope is connected with the fixed trolley, and the other end of the winch rope penetrates through the movable trolley in a sliding manner and is fixedly connected with the buoyancy tank; the movable trolley is provided with a measuring device used for measuring the distance between the floating box and the movable trolley, and the movable trolley is provided with an angle detecting device used for displaying the deflection angle of the winch rope when the floating box floats. The Bluetooth electronic counter and the Bluetooth angle sensor directly send obtained numerical values to the display panel through Bluetooth through the Bluetooth electronic counter and the Bluetooth angle sensor or through the number N of rotation turns of the rotating wheel and the deflection angle alpha of the winch rope, and the distance between the river bottom and the water surface is obtained through calculation of the display panel. Therefore, automatic testing is realized, and use is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of water level detection, in particular to a water level detection device for water conservancy surveying and mapping. Background Art

[0002] In water conservancy projects, water level measuring devices are needed to measure the water level. However, the existing water level measuring devices are inconvenient to use and have poor adjustability. Some water conservancy projects are often built in the wild. When the surveyors are on a steep slope, they cannot get close to the river, resulting in the inability to put the measuring device into the river. The water level measuring device is difficult to function when facing a high steep slope, which is not conducive to operation.

[0003] To address the generally existing problem that the water level is inconvenient to measure due to steep slopes, a horizontal support is generally set up, and the measuring line is put from above the water surface to the river bottom. Related technologies such as a water level measuring device for water conservancy projects in a Chinese utility model patent with the application number 201920468206.5. When the distance between the river bank and the river water is far, such as a steep slope with a steep gradient, the surveyor cannot go down to the bottom of the steep slope to measure. The electric telescopic rod can be rotated first until it is perpendicular to the cross bar, and the signal line of the measuring instrument is placed in the card slot at the head of the electric telescopic rod. Then, the electric telescopic rod is started, and the electric telescopic rod pushes the signal line of the measuring instrument forward to move over the steep slope and suspend above the water surface. Then, the crank is shaken to lower the heavy object, so as to measure the water depth.

[0004] Regarding the above-mentioned existing technology, the inventor believes that when the width of the slope is very large, a very long support needs to be set up for the above-mentioned measuring device, and the convenience is very poor. Therefore, it is necessary to propose a more portable water level detection device to facilitate the water level measurement of a sloping river channel. Summary of the Invention

[0005] To solve the problems in the existing technology, the present invention provides a water level detection device for water conservancy surveying and mapping, including a fixed trolley, a hoisting rope, a movable trolley, and a floating box. One end of the hoisting rope is connected to the fixed trolley, and the other end of the hoisting rope slides through the movable trolley and is fixedly connected to the floating box; The movable trolley is provided with a measuring device for measuring the distance between the floating box and the movable trolley, and the movable trolley is provided with an angle detection device for displaying the deflection angle of the hoisting rope when the floating box floats.

[0006] Preferably, the measuring device includes a runner rotatably arranged on the movable trolley. The side surface of the runner is in rolling contact with the hoisting rope. A Bluetooth electronic counter is fixedly installed on the movable trolley, and the shaft part of the runner is fixedly connected to the input end of the Bluetooth electronic counter.

[0007] Preferably, the angle detection device includes a rotating shaft rotatably connected to the upper end of the movable trolley, a swinging sleeve fixedly connected to the rotating shaft, and a Bluetooth angle sensor connected to the rotating shaft. The Bluetooth angle sensor is fixedly connected to the movable trolley, and the hoisting rope passes through the swinging sleeve.

[0008] Preferably, a hoist is installed on the fixed trolley, and the hoisting rope is connected to the hoist.

[0009] Preferably, a display panel is installed on the fixed trolley and is in Bluetooth connection with the Bluetooth electronic counter and the Bluetooth angle sensor.

[0010] Preferably, a pull rod is fixed to the rear end of the fixed trolley.

[0011] Preferably, a base for placing the movable trolley is provided on the fixed trolley.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, the staff places the fixed trolley on the top of the slope of the sloping river channel, places the movable trolley on the slope, and extends the hoisting rope to make the movable trolley move downward along the slope. At this time, the floating box moves downward with the movable trolley. When the movable trolley reaches the bottom of the river, as the hoisting rope continues to be extended while the movable trolley has stopped moving, the floating box floats upward under the action of buoyancy. By measuring the vertical distance between the floating box and the movable trolley, the distance from the bottom of the water to the water surface is obtained. Through this measurement method, it is not necessary to erect a bracket on the top of the slope of the sloping river channel, which greatly improves the convenience, and it is not necessary for the measurement personnel to stand on the steep slope, so the safety is higher.

[0013] 2. The movable trolley of the present invention is provided with a measuring device for measuring the distance between the floating box and the movable trolley, and an angle detection device for displaying the deflection angle of the hoisting rope when the floating box floats is provided on the movable trolley. After the floating box floats to the water surface, the rotation number N of the rotating wheel and the deflection angle α of the hoisting rope are obtained through the Bluetooth electronic counter and the Bluetooth angle sensor respectively. The Bluetooth electronic counter and the Bluetooth angle sensor directly send the obtained values to the display panel through Bluetooth, and the distance H between the bottom of the river and the water surface is calculated by the display panel as H = πRN * cosα, so as to realize automatic testing and make it more convenient to use. Description of the Drawings

[0014] The present invention will be further described below with reference to the drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of a water level detection device for water conservancy surveying and mapping provided by the present invention; Figure 2 It is a schematic structural diagram of the present invention; Figure 3 It is a schematic structural diagram of the present invention; Figure 4 For the present invention Figure 1 The enlarged structural diagram at position A in it; Figure 5 For the present invention Figure 2 The enlarged structural diagram at position B in it; Figure 6 It is a schematic diagram of the structure of the movable trolley of the present invention.

[0016] The reference signs in the drawings are: 1 - fixed trolley; 2 - hoisting rope; 3 - movable trolley; 4 - floating box; 5 - runner; 51 - limit wheel; 6 - Bluetooth electronic counter; 7 - rotating shaft; 8 - swinging sleeve; 9 - Bluetooth angle sensor; 10 - winch; 11 - display panel; 12 - pull rod; 13 - base. Specific embodiments

[0017] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0018] As Figures 1-6 shown, a water level detection device for water conservancy surveying and mapping according to the present invention includes a fixed trolley 1, a hoisting rope 2, a movable trolley 3 and a floating box 4. One end of the hoisting rope 2 is connected to the fixed trolley 1, and the other end of the hoisting rope 2 slides through the movable trolley 3 and is fixedly connected to the floating box 4. During use, the staff places the fixed trolley 1 on the top of the slope of a sloping river channel, places the movable trolley 3 on the slope, and extends the hoisting rope 2 to make the movable trolley 3 move downward along the slope. At this time, the floating box 4 moves downward together with the movable trolley 3. When the movable trolley 3 reaches the bottom of the river, as the hoisting rope 2 continues to be extended while the movable trolley 3 has stopped moving, the floating box 4 floats upward under the action of buoyancy. By measuring the vertical distance between the floating box 4 and the movable trolley 3, the distance from the bottom of the water to the water surface can be obtained. Through this measurement method, it is not necessary to set up a bracket on the top of the slope of the sloping river channel, which greatly improves the convenience, and it is not necessary for the surveying personnel to stand on the steep slope, so the safety is higher.

[0019] Furthermore, a measuring device for measuring the distance between the floating box 4 and the movable trolley 3 is provided on the movable trolley 3, and an angle detection device for displaying the deflection angle of the hoisting rope 2 when the floating box 4 floats is provided on the movable trolley 3. When there is no water flow in the river channel, the floating box 4 can float vertically upward, so that the distance between the floating box 4 and the movable trolley 3 is the distance from the bottom of the water to the water surface. When there is water flow in the river channel, when the floating box 4 floats upward, it will move along the direction of the water flow, causing the hoisting rope 2 to tilt, and the tilt angle is α. By detecting the deviation angle of the hoisting rope 2 and the distance between the floating box 4 and the movable trolley 3 (i.e., the hypotenuse of the triangle), the vertical distance between the floating box 4 and the movable trolley 3 in the height direction, that is, the distance from the bottom of the river to the water surface, can be calculated.

[0020] Specifically, the measuring device includes a runner 5 rotatably provided on the movable trolley 3. The side surface of the runner 5 is in rolling contact with the hoisting rope 2. A Bluetooth electronic counter 6 is fixedly installed on the movable trolley 3. The shaft part of the runner 5 is fixedly connected to the input end of the Bluetooth electronic counter 6. When the floating box 4 moves downward along the slope together with the movable trolley 3, there is no relative movement between the hoisting rope 2 and the movable trolley 3, and at this time the runner 5 remains stationary. When the movable trolley 3 reaches the bottom of the river and continues to lengthen the hoisting rope 2, the floating box 4 will float upward, driving a displacement between the hoisting rope 2 and the movable trolley 3, thereby driving the runner 5 to rotate. When the runner 5 rotates, it drives the Bluetooth electronic counter 6 to start counting, and the counted value N (representing the number of rotations of the runner) is obtained. Then the distance S between the floating box 4 and the movable trolley 3 is S = πRN (R is the diameter of the runner).

[0021] It is worth mentioning that a limit wheel 51 is also rotatably provided on the movable trolley 3, and the hoisting rope 2 is located between the limit wheel 51 and the runner 5.

[0022] Specifically, the angle detection device includes a rotating shaft 7 rotatably connected to the upper end of the movable trolley 3, a swinging sleeve 8 fixedly connected to the rotating shaft 7, and a Bluetooth angle sensor 9 connected to the rotating shaft 7. The Bluetooth angle sensor 9 is fixedly connected to the movable trolley 3. The hoisting rope 2 passes through the swinging sleeve 8. When there is water flow in the river channel, when the floating box 4 rises, the hoisting rope 2 is inclined. The deflection angle α is obtained through the Bluetooth angle sensor 9. Then the vertical height H between the floating box 4 and the bottom of the river is H = S * sinα = πRN * cosα. In fact, when there is no water flow in the river channel, the floating box 4 floats vertically upward, that is, α = 0, and cosα = 1. Therefore, at this time, the vertical height H between the floating box 4 and the bottom of the river is H = πRN.

[0023] The fixed trolley 1 is equipped with a hoist 10, and the hoisting rope 2 is connected to the hoist 10.

[0024] A display panel 11 is installed on the fixed trolley 1 and is in Bluetooth connection with the Bluetooth electronic counter 6 and the Bluetooth angle sensor 9. The Bluetooth electronic counter 6 and the Bluetooth angle sensor 9 directly send the obtained values to the display panel 11, and the distance between the river bottom and the water surface is calculated through the display panel 11, thus realizing automatic testing and making it more convenient to use.

[0025] In some embodiments, a pull rod 12 is fixed to the rear end of the fixed trolley 1. Through the arrangement of the pull rod 12, the fixed trolley 1 can be moved like pulling a suitcase when moving, which is convenient for use in the field environment.

[0026] In some embodiments, a base 13 for placing the movable trolley 3 is provided on the fixed trolley 1. The movable trolley 3 is fixed to the base 13 through structures such as bolts and buckles. Placing the movable trolley 3 on the base 13 facilitates moving together with the fixed trolley 1.

[0027] Working principle: When the present invention is in use, the staff places the fixed trolley 1 on the top of the slope of the sloping river channel, places the movable trolley 3 on the slope, and extends the hoisting rope 2 to make the movable trolley 3 move downward along the slope. When the movable trolley 3 moves downward, the floating box 4 is stuck on the right side of the runner 5 and the limit wheel 51 of the movable trolley 3 and moves downward together with the movable trolley 3. When the movable trolley 3 reaches the river bottom, as the hoisting rope 2 continues to be extended while the movable trolley 3 has stopped moving, the floating box 4 floats upward under the buoyancy force. When the floating box 4 floats upward, a displacement is generated between the hoisting rope 2 and the movable trolley 3, pulling the runner 5 to rotate. When the runner 5 rotates, it drives the input end of the Bluetooth electronic counter 6 to rotate, causing the Bluetooth electronic counter 6 to start counting, and the counted value is N. At the same time, when the floating box 4 rises, it drives the swing sleeve 8 to rotate. When the swing sleeve 8 rotates, it drives the rotating shaft 7 to rotate, and the angle α is obtained through the Bluetooth angle sensor 9. The Bluetooth electronic counter 6 and the Bluetooth angle sensor 9 directly send the obtained values N and α to the display panel 11, and the distance H between the river bottom and the water surface is calculated through the display panel 11 as H = πRN * cosα, thus realizing automatic testing and making it more convenient to use.

[0028] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water level detection device for water conservancy surveying and mapping, characterized in that: The invention comprises a fixed trolley (1), a hoisting rope (2), a movable trolley (3) and a buoyancy box (4), wherein one end of the hoisting rope (2) is connected to the fixed trolley (1), and the other end of the hoisting rope (2) slides through the movable trolley (3) and is fixedly connected to the buoyancy box (4); The movable trolley (3) is provided with a measuring device for measuring the distance between the buoyancy box (4) and the movable trolley (3), and the movable trolley (3) is provided with an angle detection device for displaying the deflection angle of the hoisting rope (2) when the buoyancy box (4) floats.

2. A water level detection device for water conservancy surveying and mapping according to claim 1, characterized in that: The measuring device comprises a rotating wheel (5) rotatably arranged on a movable trolley (3), the side surface of the rotating wheel (5) rollingly contacts with a hoisting rope (2), a Bluetooth electronic counter (6) fixedly mounted on the movable trolley (3), and a shaft portion of the rotating wheel (5) fixedly connected to an input end of the Bluetooth electronic counter (6).

3. A water level detection device for water conservancy surveying and mapping according to claim 1, characterized in that: The angle detection device comprises a rotating shaft (7) rotatably connected to the upper end of the movable trolley (3), a swing sleeve (8) fixedly connected to the rotating shaft (7), and a Bluetooth angle sensor (9) connected to the rotating shaft (7); the Bluetooth angle sensor (9) is fixedly connected to the movable trolley (3), and the hoisting rope (2) passes through the swing sleeve (8).

4. A water level detection device for water conservancy surveying and mapping according to claim 1, characterized in that: The fixed trolley (1) is equipped with a winch (10), and the winch rope (2) is connected to the winch (10).

5. The water level detection device for water conservancy surveying and mapping according to claim 2 is characterized in that: The fixed trolley (1) is provided with a display panel (11) connected to the Bluetooth electronic counter (6) and the Bluetooth angle sensor (9) via Bluetooth.

6. The water level detection device for water conservancy surveying and mapping according to claim 1 is characterized by: A pull rod (12) is fixed to the rear end of the fixed trolley (1).

7. A water level detection device for water conservancy surveying and mapping according to claim 1, characterized in that: The fixed trolley (1) is provided with a base (13) for placing the movable trolley (3).

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