Water flow velocity detection device

Abstract

The utility model discloses a water flow velocity detection device which comprises a fixing rod, one end of the fixing rod is fixedly connected with a fixing nail, the other end of the fixing rod is rotatably connected with a first rotating rod, the other end of the first rotating rod is fixedly connected with a first speed measuring plate, and the end, fixedly connected with the first speed measuring plate, of the first rotating rod is rotatably connected with a second rotating rod. The other end of the second rotating rod is fixedly connected with a second speed measuring plate, the connecting position of the second rotating rod and the second speed measuring plate is rotationally connected with a plurality of indicators, the connecting position of the indicators and the second rotating rod is rotationally connected with a first rotating shaft, and the rotating angles of the second rotating rod and the indicators on the first speed measuring plate and the second speed measuring plate can detect the speed of the current water flow. The fixing rod can be conveniently connected with the side wall of a water bank or other places, when the device is placed in water needing to be measured, the scale of the speed measuring plate can be observed through the groove formed in the second rotating rod, and therefore the approximate flow speed of the water flow at the position of the device can be measured.

Description

Technical Field

[0001] The utility model relates to the field of water conservancy survey, and more specifically, to a device capable of measuring water flow velocity. Background Art

[0002] When planning and designing water conservancy projects, it is necessary to accurately measure the flow rate of the river in order to evaluate the safety and effectiveness of the project, for example, when building hydropower stations, dams, locks and other engineering projects.

[0003] Due to the instability, variability and complex environmental factors of water flow, measuring water flow velocity is a problem. Traditional water flow velocity measurement methods, such as ultrasonic method, hot wire hot film method and Doppler method, usually require certain equipment or some calculation time to measure the water flow velocity. It is difficult to measure the water flow velocity simply and conveniently. In the early work of water conservancy survey, there is a lack of such convenient velocity measuring devices.

[0004] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a water flow velocity detection device.

[0006] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: it includes a fixed rod, which is characterized in that: one end of the fixed rod is fixedly connected with a fixing nail, the other end of the fixed rod is rotatably connected with a rotating rod 1, the connection between the fixed rod and the rotating rod 1 is threadedly connected with an upper rotating shaft, the other end of the rotating rod 1 is fixedly connected with a speed measuring plate 1, the fixed connection end of the rotating rod 1 and the speed measuring plate 1 is rotatably connected with a rotating rod 2, the connection between the rotating rod 1 and the rotating rod 2 is rotatably connected with a lower rotating shaft, the other end of the rotating rod 2 is fixedly connected with a speed measuring plate 2, the connection between the rotating rod 2 and the speed measuring plate 2 is rotatably connected with a plurality of pointers, and the connection between the pointer and the rotating rod 2 is rotatably connected with a rotating shaft 1.

[0007] By adopting the above technical solution, the fixing rod is used to fix the position of the device. When measuring places such as rivers and lakes, the fixing rod can be fixed to the shore, or the fixing rod can be held by hand to fix the device. One end of the fixing rod has a pointed head, which can be inserted into some soft places for fixing. The rotating rod 1 at the other end of the fixing rod is used to connect with the lower part. The rotating rod 1 is spirally connected to the fixing rod, and a certain force is required to rotate it, so that the user can more conveniently rotate the angle of the fixing rod to adapt to the measurement of various positions. The other end of the rotating rod 1 is fixedly connected to the speed measuring plate. The rotating connection is provided with a rotating rod 2, which can rotate along the position where the speed measuring plate 1 is connected to the rotating rod 1. When the position of the rotating rod 2 is rotated to a certain angle, the rotation angle can be observed from the speed measuring plate. The rotation of the rotating rod 2 can be observed to measure the impact force of the water flow, thereby achieving the effect of measuring the water speed. The speed measuring plate 2 is fixedly connected to the lower end of the rotating rod 2, and several pointers are rotatably connected to the rotating rod 2. The pointers are located on both sides of the speed measuring plate 2. The pointers rotate when subjected to the action of force. The greater the force, the greater the rotation angle, and the flow rate can be measured more accurately than that of the rotating rod 2.

[0008] The utility model is further configured as follows: the fixing rod is L-shaped, and one end of the fixing rod away from the fixing nail is rotatably connected to the rotating rod.

[0009] By adopting the above technical solution, the L-shaped design can enable the speed measuring device to fix the fixing rod on the side wall of the river bank during the speed measuring process.

[0010] The utility model is further configured as follows: a flow-blocking strip is fixedly connected to the side wall of the pointing mark.

[0011] By adopting the above technical solution, the weight of the pointer is small, the force area of ​​the water flow on the pointer becomes larger, and the pointer can be impacted by the water flow with a smaller impact force to cause it to deviate.

[0012] The utility model is further configured as follows: a through groove is provided on the side wall of the second rotating rod close to the lower rotating shaft.

[0013] By adopting the above technical solution, during the rotation of the rotating rod 2, the scale on the speed measuring plate 2 can be observed through the through slot, so that the information on the speed measuring plate 1 can be observed through the groove to determine the flow rate.

[0014] The utility model is further configured as follows: the side walls of the first speed measuring plate and the second speed measuring plate are marked with marks.

[0015] By adopting the above technical solution, when the rotating rod 2 and the pointer are rotated to the corresponding positions of the speed measuring board, the speed measuring board 1 and the speed measuring board 2 can clearly display the speed of the current water flow impact.

[0016] The utility model is further configured such that the ratio of the weight of the pointing indicator to the sum of the weight of the second rotating rod and the lower end is 1:10.

[0017] By adopting the above technical solution, when the rotation angle of the pointer reaches the limit, the rotation angle of the second rotating rod can be observed to record and measure the speed.

[0018] In summary, the utility model has the following beneficial effects: the rotation angles of the rotating rod 2 and the pointer on the speed measuring plate 1 and the speed measuring plate 2 can detect the current water flow speed, the fixed rod is conveniently connected to the water bank or other local side walls, and the scale of the speed measuring plate can be observed through the groove opened in the rotating rod 2, thereby measuring the approximate flow velocity in the water flow where the device is located. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the fixed rod part of the utility model;

[0021] Figure 3 For this utility model Figure 1 The enlarged schematic diagram of point A in the middle;

[0022] Figure 4 For this utility model Figure 1 The enlarged schematic diagram of point B in the middle;

[0023] Figure 5 For this utility model Figure 1 The enlarged schematic diagram of the center C;

[0024] Figure 6 For this utility model Figure 1 Enlarged schematic diagram of point D in the middle.

[0025] In the figure: 1. fixed rod; 11. fixed nail; 2. rotating rod 1; 21. upper rotating shaft; 22. lower rotating shaft; 3. speed measuring plate 1; 4. rotating rod 2; 5. speed measuring plate 2; 6. pointer; 61. choke strip; 62. rotating shaft 1. DETAILED DESCRIPTION

[0026] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Example:

[0028] Water flow velocity detection device such as Figure 1 , Figure 3As shown, it includes a fixed rod 1, one end of the fixed rod 1 is fixedly connected with a fixing nail 11, the other end of the fixed rod 1 is rotatably connected with a rotating rod 2, the connection between the fixed rod 1 and the rotating rod 2 is threaded with an upper rotating shaft 21, the other end of the rotating rod 2 is fixedly connected with a speed measuring plate 3, the fixed connection end of the rotating rod 2 and the speed measuring plate 3 is rotatably connected with a rotating rod 2 4, the connection between the rotating rod 1 2 and the rotating rod 2 4 is rotatably connected with a lower rotating shaft 22, the other end of the rotating rod 2 4 is fixedly connected with a speed measuring plate 2 5, a plurality of pointers 6 are rotatably connected at the connection between the rotating rod 2 4 and the speed measuring plate 2 5, a rotating shaft 1 62 is rotatably connected at the connection between the pointer 6 and the rotating rod 2 4, the side walls of the speed measuring plate 3 and the speed measuring plate 2 5 are marked, and the weight of the pointer 6 to the sum of the weight of the rotating rod 2 4 and the lower end is in a ratio of 1:10.

[0029] like Figure 2 As shown, the fixing rod 1 is bent 90 degrees near the rotating rod 2, so that it is convenient to fix it to the side wall through the 90-degree turn.

[0030] like Figure 4 As shown, a groove is formed on the side wall of the rotating rod 2 4 near the lower rotating shaft 22 .

[0031] like Figure 5 , Figure 6 As shown, a baffle strip 61 is fixedly connected to the side wall of the pointer 6 .

[0032] In the process of using the utility model, firstly, a fixing rod is used to fix the position of the device. When measuring places such as rivers and lakes, the fixing rod is fixed to the shore, or the fixing rod is held by hand to complete the function of fixing the device. One end of the fixing rod has a pointed head, which can be inserted into some places with soft texture for fixing. For terrain with harder texture, the 90-degree corner part can also be abutted against the bottom surface, so that the detection device behind it can be submerged in the water for detection. The rotating rod 1 at the other end of the fixing rod is used to connect with the lower part. The rotating rod 1 is spirally connected to the fixing rod, and a certain force is required to rotate it, so that the user can more conveniently rotate the angle of the fixing rod to adapt to the measurement of various positions. The other end of the rotating rod 1 is fixedly connected to the speed measuring plate, and the rotating connection is provided with a rotating rod 2. A groove is provided on the side wall of the rotating rod 2 near the lower rotating axis. The groove can observe the information on the speed measuring plate 1. When the rotating rod 2 is impacted by the water flow After the impact, it is rotated to the position on the speed measuring plate one to observe the corresponding value, and the rotation of the rotating rod two is observed to measure the impact force of the water flow, so as to achieve the effect of measuring the water speed. The speed measuring plate two fixedly connected to the lower end of the rotating rod two and several pointers rotatably connected to the rotating rod two, the pointers are located on both sides of the speed measuring plate two, and the weight of the pointer is 1:10 to the sum of the weight of the rotating rod two and the lower end position. The weight of the pointer is relatively small. When the rotation angle of the pointer reaches the limit, the rotation angle of the rotating rod two can be observed to record the speed measurement. The side wall of the pointer is fixedly connected with a flow blocking strip, and the force area of ​​the pointer on the pointer becomes larger. The pointer can also be impacted by the water flow with less impact force to cause it to deviate. The pointer rotates under the action of the force. The greater the force, the greater the rotation angle, and the flow velocity can be measured more accurately than the rotating rod two. The two can be used together to measure water samples with smaller water flow or water samples with larger water flow.

[0033] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A water flow velocity detection device, comprising a fixing rod (1), characterized in that: One end of the fixed rod (1) is fixedly connected to a fixing nail (11), and the other end of the fixed rod (1) is rotatably connected to a rotating rod (2). The connection between the fixed rod (1) and the rotating rod (2) is rotatably connected to an upper rotating shaft (21). The other end of the rotating rod (2) is fixedly connected to a speed measuring plate (3). The fixed connection end between the rotating rod (2) and the speed measuring plate (3) is rotatably connected to a rotating rod (4). The connection between the rotating rod (2) and the rotating rod (4) is rotatably connected to a lower rotating shaft (22). The other end of the rotating rod (4) is fixedly connected to a speed measuring plate (5). The connection between the rotating rod (4) and the speed measuring plate (5) is rotatably connected to a plurality of pointers (6), and the connection between the pointer (6) and the rotating rod (4) is rotatably connected to a rotating shaft (62).

2. The water flow velocity detection device according to claim 1, characterized in that: The fixing rod (1) is L-shaped, and one end of the fixing rod (1) away from the fixing nail (11) is rotatably connected to a rotating rod (2).

3. The water flow velocity detection device according to claim 1, characterized in that: A flow-blocking strip (61) is fixedly connected to the side wall of the pointer (6).

4. The water flow velocity detection device according to claim 1, characterized in that: A through groove is provided on the side wall of the second rotating rod (4) near the lower rotating shaft (22).

5. The water flow velocity detection device according to claim 1, characterized in that: The side walls of the speed measuring plate 1 (3) and the speed measuring plate 2 (5) are marked.

6. The water flow velocity detection device according to claim 1, characterized in that: The ratio of the weight of the pointing indicator (6) to the sum of the weight of the second rotating rod (4) and the lower end position is 1:10.

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