Flow velocity monitoring device for hydraulic engineering

Abstract

The utility model discloses a flow velocity monitoring device for hydraulic engineering, which belongs to the field of hydraulic engineering and comprises a Doppler flow velocity meter composed of a remote controller and a single flow velocity sensor, and a plurality of hollow measuring rods connected through pin structures are arranged on one side of the single flow velocity sensor. Compared with the prior art, the utility model has the advantages that the device indirectly drives the single flow velocity sensor welded with the convex plate to automatically move up and down along the hollow measuring rod through the threaded structure connection of the screw rod and the convex plate, thereby completing the measurement of the flow velocity under the condition that the position of the hollow measuring rod is not changed. The water flow velocities at different depths are detected, so that remote monitoring of the water flow velocities at different depths is facilitated; in order to adapt to the convenience of assembly and carrying of the multi-section hollow measuring rod, the total screw rod is also formed by splicing a plurality of sections of screw rods.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering, specifically to a flow velocity monitoring device for water conservancy engineering. Background Technology

[0002] Water, as the source of life, is the birthplace of human civilization. Traditional human life was all built around water. In order to understand the direction and speed of river flow, people often use corresponding flow velocity detection equipment to monitor the flow rate and speed of the river, thereby determining the amount of water in the river and the speed at which the river changes course.

[0003] Currently, the most common method for measuring water flow velocity is to use a Doppler current meter consisting of a remote control and a single velocity sensor. The single velocity sensor is usually fixed to a measuring rod composed of multiple hollow measuring rod sections using connecting devices such as clamps. The current velocity of rivers at different depths is then measured through the measuring rod.

[0004] When measuring the flow velocity of a river at different depths, it is necessary to continuously insert the hollow measuring rod downwards into the river to measure the flow velocity at various depths. Although this method can be used in deeper rivers without being affected, when testing shallow water, it is necessary to frequently change the fixed position of the clamp in order to perform segmented testing. Furthermore, when monitoring is required, it is difficult to measure the flow velocity of the river at different depths without removing the hollow measuring rod. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing flow velocity monitoring devices for water conservancy projects are difficult to automatically adjust for monitoring the flow velocity of rivers at different depths.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a flow velocity monitoring device for water conservancy projects, comprising a Doppler current meter composed of a remote controller and a single flow velocity sensor. One side of the single flow velocity sensor is provided with several hollow measuring rods connected by a pin structure. A convex plate passing through one side of the hollow measuring rod is welded to one side of the single flow velocity sensor. Several screw rods connected by a pin structure are provided inside the cavity of the hollow measuring rod, and the screw rods pass through the center of the convex plate. A servo motor connected by a connecting key is provided at the top of the screw rod, and the servo motor is connected to the hollow measuring rod directly above by a bolt structure.

[0007] As an improvement, several fastening screws are provided on the connecting pin side of each screw and on the pin connecting plate side of each hollow measuring rod.

[0008] As an improvement, the bottom surface of the lowest hollow measuring rod is provided with a tapered nail for fixing the bottom end of the screw.

[0009] As an improvement, the hollow measuring rod is made of hard aluminum alloy coated with an anti-rust coating.

[0010] As an improvement, the servo motor is connected to the remote controller via a data cable.

[0011] As an improvement, the threads of each screw have the same direction, and the threads on the connecting surfaces are interconnected.

[0012] The advantages of this invention compared to the prior art are as follows: This device indirectly drives a single flow velocity sensor welded to the convex plate through a threaded connection between the screw and the convex plate, allowing it to move automatically up and down along the hollow measuring rod. This enables the detection of water flow velocity at different depths without changing the position of the hollow measuring rod, thus facilitating remote monitoring of water flow velocity at different depths. To accommodate the ease of assembly and carrying of multiple hollow measuring rod sections, the main screw is also constructed by splicing multiple screw sections. Attached Figure Description

[0013] Figure 1 This is a general structural diagram of a flow velocity monitoring device for water conservancy projects according to this utility model.

[0014] Figure 2 This is a cross-sectional view of the overall structure of a flow velocity monitoring device for water conservancy projects according to this utility model.

[0015] Figure 3 This is an exploded view of the hollow measuring rod connection of a flow velocity monitoring device for water conservancy projects according to this utility model.

[0016] Figure 4 This is a screw structure diagram of a flow velocity monitoring device for water conservancy projects according to this utility model.

[0017] Figure 5 This is a diagram of the convex plate connection structure of a flow velocity monitoring device for water conservancy projects according to this utility model.

[0018] As shown in the figure: 1. Doppler current meter; 11. Remote control; 12. Single flow velocity sensor; 2. Hollow measuring rod; 3. Convex plate; 4. Screw; 5. Servo motor; 6. Fastening screw; 7. Conical nail. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] As per the instruction manual Figure 1 , 2As shown in Figures 3, 4, and 5, the current Doppler current meter 1 mainly consists of a remote controller 11 and a single flow velocity sensor 12. The single flow velocity sensor 12 can simultaneously measure the flow velocity in two directions. For example, the portable handheld Doppler current meter developed by Shandong Renke can perform fixed-point detection of water flow in complex terrain. The single flow velocity sensor 12 is usually fixed to the hollow measuring rod 2 using corresponding clamps or other structures.

[0021] To facilitate the monitoring of river flow velocity at different depths by a single flow velocity sensor 12 without moving the hollow measuring rod 2, a convex plate 3 is welded to one side of the single flow velocity sensor 12, passing through one side of the hollow measuring rod 2. The convex plate 3 consists of a disk identical to the cavity of the hollow measuring rod 2 and a rectangular column connecting the disk and the side wall of the single flow velocity sensor 12, thereby ensuring the unidirectional sliding of the convex plate 3 inside the hollow measuring rod 2. One side of the hollow measuring rod 2 has a slot for the rectangular column to slide.

[0022] The hollow measuring rod 2 has several sections of screw rods 4 connected by a pin structure inside its cavity. The screw rods 4 pass through the center of the convex plate 3, allowing the disc of the convex plate 3 to move up and down under the drive of the screw rods 4. To ensure the continuity of the threads after the screw rods 4 are connected, each screw rod 4 has a fastening screw 6 on one side of the connecting pin. The pin groove sidewall and the pin of the screw rod 4 have threaded holes corresponding to the fastening screw 6. The effective length of the fastening screw 6 does not affect the normal drive of the screw rod 4. The bottom surface of the screw rod 4 is the pin, and the top surface is the pin hole, which facilitates the fixing of the bottom screw rod 4 to the tapered nail 7. The tapered nail 7 fixes the rotation of the screw rod and ensures the stability of the hollow measuring rod 2 when it is driven down. Each section of the screw rod 4 is usually cut from a complete threaded rod, and pin holes are opened and pins are welded on both sides. That is, the thread direction of each screw rod 4 is the same, and the threads on the connecting surfaces are interconnected.

[0023] The top of the screw 4 is equipped with a servo motor 5 connected by a connecting key. To ensure the stability of the connection, a fastening screw 6 can be installed on the output shaft side of the servo motor 5 for reinforcement. The base of the servo motor 5 is connected to the hollow measuring rod 2 directly above by a bolt structure, and the servo motor 5 is connected to the remote controller 11 via a data cable.

[0024] Similarly to the connection of screw 4, the top surface of hollow measuring rod 2 has a convex plate, and the bottom surface of hollow measuring rod 2 has a groove corresponding to the convex plate. In order to ensure the stability of the connection, there are several fastening screws 6 on the side of the groove that pass through the side wall of the groove and the side wall of the convex plate for reinforcement. The slots of hollow measuring rod 2 are in the same direction to facilitate the up and down movement of convex plate 3. In order to ensure the toughness and strength of hollow measuring rod 2, the hollow measuring rod 2 is made of hard aluminum alloy coated with anti-rust coating.

[0025] In a specific implementation of this invention, the hollow measuring rod 2 is inserted into the mud and sand at the bottom of the river for fixation. Then, according to the requirements, the height of the single flow velocity sensor 12 is adjusted by the servo motor 5. After that, the single flow velocity sensor 12 is activated to detect the water flow velocity at that height. After obtaining the data, the servo motor 5 is rotated again to adjust the height of the single flow velocity sensor 12 to detect other depths.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A hydraulic engineering flow velocity monitoring device, comprising a Doppler flow velocity meter (1) composed of a remote controller (11) and a single-branch flow velocity sensor (12), one side of the single-branch flow velocity sensor (12) is provided with a plurality of hollow measuring rods (2) connected through pin structure, characterized in that: One side of the single-branch flow rate sensor (12) is welded with a convex plate (3) passing through one side of the hollow measuring rod (2), the cavity inside the hollow measuring rod (2) is provided with a plurality of screw rods (4) connected through pin structure, and the screw rods (4) pass through the center of the convex plate (3), the top end of the screw rod (4) is provided with a servo motor (5) connected through a connecting key, and the servo motor (5) is connected with the hollow measuring rod (2) above through a bolt structure.

2. The flow velocity monitoring device for hydraulic engineering according to claim 1, characterized in that: The connecting pin side of each screw rod (4) and the pin connecting plate side of each hollow measuring rod (2) are provided with a plurality of fastening screws (6).

3. The flow velocity monitoring device for hydraulic engineering according to claim 1, characterized in that: The bottom surface of the lowermost hollow measuring rod (2) is provided with a conical nail (7) fixing the bottom end of the screw rod (4).

4. The flow velocity monitoring device for hydraulic engineering according to claim 1, characterized in that: The material of the hollow measuring rod (2) is hard aluminum alloy coated with anti-rust coating.

5. The flow velocity monitoring device for hydraulic engineering according to claim 1, characterized in that: The servo motor (5) is connected with the remote controller (11) through a data line.

6. The flow velocity monitoring device for hydraulic engineering according to claim 1, characterized in that: The thread directions of each screw rod (4) are the same, and the thread directions of the connecting surfaces are mutually communicated.

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