Propeller current meter angle device
By designing a propeller velocity meter angler, and utilizing a fixed crossbeam, angle measurement unit, and guide line, the problems of low efficiency and large error in measuring water flow velocity and direction angle were solved, enabling rapid and accurate acquisition of water flow data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI & HUAI RIVER WATER RESOURCES RES INST
- Filing Date
- 2025-09-05
- Publication Date
- 2026-06-16
AI Technical Summary
Existing technologies are inefficient for measuring water flow velocity and direction angles. The instability of handheld protractors and the randomness of fixing the thin string result in large angle measurement errors, which cannot meet the accuracy requirements of experimental data.
A propeller current meter angler was designed, including a fixed crossbeam, a mounting frame, an angle measuring unit, and a guide line. By adjusting the propeller current meter body horizontally and vertically, combined with a protractor and a lever, the direction of water flow can be intuitively displayed and the angle can be accurately read.
The propeller current meter body is highly adjustable, making it suitable for water body testing in different areas. It is simple and reliable to operate, and can quickly and accurately measure water flow velocity and flow direction angle, thus improving the reliability and accuracy of experimental data.
Smart Images

Figure CN224366066U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water flow measurement devices, specifically to a propeller flow velocity meter angler. Background Technology
[0002] In the field of hydraulic model experiments, such as the study of water flow characteristics in lake and reservoir models, accurate measurement of water flow velocity and direction angle is a key step in analyzing the laws governing water flow.
[0003] The current experimental procedure for determining the direction and angle of water flow has significant drawbacks: first, paper flowers must be scattered to roughly determine the approximate direction of the water flow, then the propeller current meter must be rotated for positioning, and then staff must hold a protractor and use clay to fix a thin line to roughly read the angle. This operation is not only inefficient, but the instability of the handheld protractor and the randomness of fixing the thin line can easily lead to angle measurement errors, failing to meet the experimental requirements for data accuracy and seriously affecting the reliability and accuracy of the experimental data. Therefore, a more accurate and rapid measurement of the velocity angle of water flow is needed. In view of this, we propose the propeller current meter angle meter. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings mentioned in the background section and provide a propeller velocity meter angler.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] The propeller current meter angle gauge, including a fixed crossbeam horizontally mounted above the test water area, also includes:
[0007] The mounting bracket, installed on the fixed crossbeam, includes a horizontally arranged frame for detachable installation of the propeller current meter body, and a connecting frame fixedly installed on the outer end of the horizontal frame.
[0008] An angle measuring unit includes a protractor horizontally mounted on the outer end of the connecting frame, and a telescopic rod is mounted at the lower axis of the protractor;
[0009] Guide lines, installed at the bottom of the telescopic rod, are used to indicate the direction of water flow.
[0010] Preferably, the horizontal frame is provided with vertical sleeves at both ends, and the propeller velocity meter body and the vertical frame are respectively inserted into the vertical sleeves on both sides, and the vertical sleeves are threaded with fastening bolts for holding the propeller velocity meter body and the vertical frame in place.
[0011] Preferably, the bottom end of the vertical frame is provided with a horizontal sleeve, which is slidably installed on the fixed cross frame, and the horizontal sleeve is equipped with fastening bolts for abutting against the fixed cross frame to maintain positioning.
[0012] Preferably, the protractor is fixedly mounted on a support plate, and a slide rail is installed on the side of the support plate corresponding to the connecting frame. A slider that is slidably mounted on the slide rail is installed on the outer end of the connecting frame.
[0013] Preferably, a lever for reading the angle of the guide line flow is rotatably mounted at the center of the protractor shaft.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This propeller current meter angle gauge, through its mounting bracket, allows for adjustment of the horizontal position and vertical height of the propeller current meter body, offering high adjustability and suitability for testing water bodies of different depths. In addition, the included angle measurement unit, in conjunction with guide lines, can intuitively display the direction of water flow. It is simple and reliable to operate, facilitating the acquisition of timely and accurate flow direction data and enabling rapid measurement of the velocity and angle direction of water flow. Attached Figure Description
[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0017] Figure 1 This is an installation diagram of an embodiment of the present invention;
[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 3 This is an exploded view of the overall structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the angle measuring unit of this utility model.
[0021] The meanings of the labels in the diagram are as follows:
[0022] 1. Fixed horizontal frame; 2. Mounting frame; 21. Vertical frame; 211. Horizontal sleeve; 22. Horizontal frame; 221. Vertical sleeve; 23. Fastening bolts; 24. Connecting frame; 3. Propeller velocity meter body;
[0023] 4. Angle measuring unit; 41. Support plate; 42. Slide rail; 43. Slider; 44. Protractor; 45. Actuating lever; 46. Telescopic rod; 5. Guide line. Detailed Implementation
[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] Please see Figures 1-4 The present invention will describe the above technical solution in detail through the following embodiments:
[0026] The propeller velocity meter angler in this embodiment, such as Figure 1 As shown, it includes a fixed crossbeam 1 horizontally installed above the test water area. The fixed crossbeam 1 provides a basic fixing point to facilitate the testing of water flow velocity. Specifically, it also includes a mounting bracket 2 installed on the fixed crossbeam 1.
[0027] like Figures 1-3 The structure shown includes a mounting frame 2 with a horizontal sleeve 211 at the bottom for sliding installation on a fixed crossbeam 1. A horizontal frame 22 is inserted into the vertical frame 21 through vertical sleeves 221 at both ends. Fastening bolts 23 are threaded onto both the vertical sleeves 221 and the horizontal sleeves 211, and the position can be locked by tightening the fastening bolts 23. The propeller current meter body 3 is inserted into the outer vertical sleeve 221. The vertical height of the propeller current meter body 3 is adjusted according to the water level and locked by the fastening bolts 23.
[0028] In this embodiment, to provide a horizontal mounting position, the angle measuring unit 4 includes a slider 43 fixedly connected to the outside of the vertical sleeve 221 at the outer end of the horizontal frame 22. A slide rail 42 is slidably mounted on the slider 43, and the slide rail 42 is fixedly mounted on the support plate 41, thus obtaining a horizontal mounting structure. The protractor 44 is horizontally mounted on the support plate 41, and a telescopic rod 46 is installed at the axis below the protractor 44. A guide line 5 is installed at the bottom end of the telescopic rod 46. The guide line 5 can be submerged in or float on the water, and is straightened and flows with the direction of water flow, so as to determine the direction of water flow based on the direction of the guide line 5; in order to better read the angle, such as Figure 4 The structure shown has a lever 45 rotatably mounted at the axis of the protractor 44, making reading convenient and quick.
[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
Claims
1. A propeller current meter angle gauge, comprising a fixed crossbeam (1) horizontally mounted above a test water area, characterized in that: Also includes: Mounting bracket (2), mounted on the fixed crossbeam (1), includes a horizontal frame (22) for detachably mounting the propeller current meter body (3) and a connecting frame (24) fixedly mounted on the outer end of the horizontal frame (22). Angle measuring unit (4) includes a protractor (44) horizontally installed at the outer end of the connecting frame (24), and a telescopic rod (46) is installed at the axis below the protractor (44). The guide line (5) is installed at the bottom of the telescopic rod (46) to indicate the direction of water flow.
2. The propeller velocity meter angler as described in claim 1, characterized in that: The horizontal frame (22) has vertical sleeves (221) at both ends. The propeller flow meter body (3) and the vertical frame (21) are respectively inserted into the vertical sleeves (221) on both sides. The vertical sleeves (221) are threaded with fastening bolts (23) for holding the propeller flow meter body (3) and the vertical frame (21) in place.
3. The propeller velocity meter angler as described in claim 2, characterized in that: The bottom end of the vertical frame (21) is provided with a horizontal sleeve (211), which is slidably installed on the fixed cross frame (1), and a fastening bolt (23) is installed on the horizontal sleeve (211) to hold the fixed cross frame (1) in place.
4. The propeller velocity meter angler as described in claim 1, characterized in that: The protractor (44) is fixedly mounted on the support plate (41). The support plate (41) is equipped with a slide rail (42) on the side corresponding to the connecting frame (24). The outer end of the connecting frame (24) is equipped with a slider (43) that is slidably mounted with the slide rail (42).
5. The propeller velocity meter angler as described in claim 1, characterized in that: The protractor (44) is rotatably mounted at its axis with a lever (45) for reading the angle of the flow of the guide line (5).