A portable water flow velocity measuring device

Abstract

This utility model relates to the technical field of water flow velocity measurement equipment, and discloses a portable water flow velocity measuring device, including a propeller velocity measuring unit, a telescopic rod, and a lateral extension rod. It has a simple structure, is easy to carry, and solves the problems of large size, complex structure, and high difficulty in carrying and quickly deploying professional velocity measuring instruments in the field. An angle measuring structure is also provided at the connection end between the lateral extension rod and the telescopic rod. During use, the operator fixes the lateral extension rod to the shore and extends the end of the lateral extension rod where the telescopic rod is attached to the shore, facilitating the placement of the propeller velocity measuring unit in the water. Simultaneously, the angle measuring structure at the connection end of the lateral extension rod and the telescopic rod can measure the tilt angle between the two rods and adjust the telescopic rod to ensure that the propeller velocity measuring unit is placed in the water in a state close to parallel to the water surface, reducing the angle between the water flow direction and the measuring end of the device, and improving measurement accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of water flow velocity measurement equipment, and in particular to a portable water flow velocity measurement device. Background Technology

[0002] In fields such as hydrological monitoring, water conservancy project construction, and environmental protection monitoring, measuring water flow velocity is a fundamental and crucial task.

[0003] Traditional water velocity measurement equipment has significant shortcomings: on the one hand, some professional velocity measuring instruments are large and complex, making them difficult to carry and deploy quickly in the field, especially in complex terrain or remote waters, where transportation and operation are limited; on the other hand, some simple velocity measuring tools are used handheld, which is inconvenient for measuring personnel standing on the shore to extend the device into the water. Furthermore, when used handheld, the direction of the water flow is at an angle to the measuring end of the device, making it impossible to accurately reflect the actual flow velocity. Therefore, a portable water velocity measuring device is urgently needed. Utility Model Content

[0004] This invention provides a portable water flow velocity measuring device to solve the problems of large size and limited portability of existing professional equipment and the inconvenience of handheld use of simple velocity measuring tools.

[0005] The technical problem solved by this utility model is achieved by the following technical solution:

[0006] A portable water flow velocity measuring device, comprising:

[0007] The propeller speed measuring unit includes a tube base and a propeller rod rotatably connected and installed at one end of the tube base. The tube base is provided with a speed sensor for measuring the rotational speed of the propeller rod inserted into the tube base.

[0008] The telescopic rod is detachably plugged into the end of the tube seat where the propeller rod is not located;

[0009] A lateral extension rod is rotatably connected to the upper end of the telescopic rod. The connection end between the lateral extension rod and the telescopic rod is also provided with an angle measuring structure for measuring the tilt angle between the lateral extension rod and the telescopic rod.

[0010] In one specific implementation, the tube seat includes:

[0011] A bearing is disposed inside the cavity of the tube seat and is used to connect with one end of the propeller rod inserted into the tube seat;

[0012] A sealing gasket, which is fixedly installed at the pipe opening of the pipe seat;

[0013] A plug-in hole is vertically provided at the end of the tube seat where the propeller rod is not provided, for plugging in and installing the telescopic rod;

[0014] A threaded hole is provided at one end of the tube seat and communicates with the insertion hole;

[0015] A locking bolt, threaded into the threaded hole, is used to lock and fix the telescopic rod.

[0016] In one specific implementation, the propeller rod includes:

[0017] Connector;

[0018] A blade, the blade being disposed on the connector;

[0019] A shaft, one end of which is fixedly disposed inside the connector, and the other end is inserted into the inner cavity of the tube seat and connected to the bearing.

[0020] In one specific implementation, the speed sensing element includes:

[0021] A speed sensor is installed inside the tube seat to measure the rotational speed of the shaft.

[0022] A transmission line is electrically connected to the speed sensor.

[0023] In one specific implementation, the maximum diameter of the telescopic rod matches the diameter of the insertion hole.

[0024] In one specific implementation, one end of the lateral extension rod is provided with a pressing end for downward pressure.

[0025] In one specific implementation, the angle measuring structure includes:

[0026] The indicator end head is fixedly disposed at the upper end of the telescopic rod;

[0027] An angle measuring end head is fixedly mounted on one end of the transverse extension rod.

[0028] In one specific implementation, the indicator head includes:

[0029] A reinforcing block is fixedly installed at the upper end of the telescopic rod, and flat ends are provided on both sides of the reinforcing block;

[0030] A through hole is provided, which is laterally formed on the reinforcing block, with both ends of the through hole located on the planar end.

[0031] An indicator head is fixedly mounted on the upper end of the reinforcing block and located at the flat end on one side.

[0032] In one specific implementation, the angle measuring end head includes:

[0033] A threaded rod, which is fixedly disposed at one end of the transverse extension rod and inserted into the through hole;

[0034] A nut, threaded onto the threaded rod, is used to fix the reinforcing block;

[0035] A protractor is fixedly mounted on the upper end face of the end of the transverse extension rod that is provided with a threaded rod.

[0036] The beneficial effects of this utility model are:

[0037] 1. The propeller rod is rotatably installed inside the tube base. A speed sensor installed inside the tube base measures the speed of the end of the propeller rod inserted into the tube base. In use, the propeller speed measuring unit is placed in water through the telescopic rod and the lateral extension rod. The water flow drives the propeller rod to rotate, and the speed sensor measures the speed of the propeller rod. The structure is simple and easy to carry, solving the problems of large size, complex structure, and high difficulty in carrying and quickly deploying professional speed measuring instruments in the field.

[0038] 2. By rotatably connecting the upper end of the lateral extension rod to the telescopic rod, and detachably inserting the telescopic rod onto the pipe seat, the operator fixes the lateral extension rod to the shore during use, extending the end of the lateral extension rod where the telescopic rod is mounted to the shore, facilitating the placement of the propeller speed measuring unit into the water. Simultaneously, the angle measuring structure at the connection point between the lateral extension rod and the telescopic rod can measure the tilt angle between them and adjust the telescopic rod to ensure the propeller speed measuring unit is placed in the water nearly parallel to the water surface, reducing the angle between the water flow direction and the measuring end of the equipment, and improving measurement accuracy. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0041] Figure 2 This is a schematic diagram of the propeller speed measuring unit of this utility model.

[0042] Figure 3 This is a cross-sectional view of the propeller speed measuring part of this utility model.

[0043] Figure 4 This is a schematic diagram of the telescopic rod and lateral extension rod structure of this utility model.

[0044] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0045] In the picture:

[0046] 100. Propeller speed measuring unit; 110. Tube seat; 111. Bearing; 112. Sealing gasket; 113. Insertion hole; 114. Threaded hole; 115. Locking bolt; 120. Propeller rod; 121. Connector; 122. Blade; 123. Shaft; 130. Speed ​​sensing element; 131. Speed ​​sensor; 132. Transmission line;

[0047] 200. Telescopic pole;

[0048] 300. Lateral extension bar;

[0049] 400, Indicator head; 410, Reinforcing block; 420, Through hole; 430, Indicator head;

[0050] 500. Angle measuring end head; 510. Threaded rod; 520. Nut; 530. Protractor. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] Reference Figure 1-5 As shown, this utility model provides a portable water flow velocity measuring device, comprising:

[0053] The propeller speed measuring unit 100 includes a tube seat 110 and a propeller rod 120 rotatably connected and installed at one end of the tube seat 110. A speed sensor 130 is provided inside the tube seat 110 for measuring the speed of the end of the propeller rod 120 inserted into the tube seat 110.

[0054] The propeller rod 120 is rotatably mounted inside the tube seat 110. The speed sensor 130 installed inside the tube seat 110 measures the speed of the end of the propeller rod 120 inserted into the tube seat 110. In use, the propeller speed measuring unit 100 is placed in water via the telescopic rod 200 and the lateral extension rod 300. The water flow drives the propeller rod 120 to rotate, and the speed sensor 130 measures the speed of the propeller rod 120. The structure is simple and easy to carry, solving the problems of large size, complex structure, and high difficulty in carrying and quickly deploying professional speed measuring instruments in the field.

[0055] Telescopic rod 200 is detachably plugged into the end of pipe seat 110 where the propeller rod 120 is not provided;

[0056] The lateral extension rod 300 is rotatably connected to the upper end of the telescopic rod 200. The connection end between the lateral extension rod 300 and the telescopic rod 200 is also provided with an angle measuring structure for measuring the tilt angle between the lateral extension rod 300 and the telescopic rod 200.

[0057] The design incorporates a rotatable connection between the upper ends of the lateral extension rod 300 and the telescopic rod 200, with the telescopic rod 200 detachably plugged into the pipe seat 110. During use, the operator fixes the lateral extension rod 300 to the shore and extends one end of the lateral extension rod 300, where the telescopic rod 200 is mounted, beyond the shore. This facilitates the placement of the propeller speed measuring unit 100 into the water. Simultaneously, the angle measuring structure at the connection point between the lateral extension rod 300 and the telescopic rod 200 measures the tilt angle between them and allows for adjustment of the telescopic rod 200. This ensures the propeller speed measuring unit 100 is placed in the water nearly parallel to the surface, reducing the angle between the water flow direction and the measuring end of the equipment, thus improving measurement accuracy.

[0058] As a further preferred embodiment of the above implementation, refer to Figure 2-3 As shown, the tube seat 110 includes:

[0059] Bearing 111 is disposed in the inner cavity of tube seat 110 and is used to connect with one end of propeller rod 120 inserted into tube seat 110.

[0060] Sealing gasket 112 is fixedly installed at the pipe opening of pipe seat 110;

[0061] The insertion hole 113 is vertically opened at the end of the tube seat 110 where the propeller rod 120 is not provided, and is used for the insertion and installation of the telescopic rod 200.

[0062] A threaded hole 114 is provided at one end of the tube seat 110 and communicates with the insertion hole 113.

[0063] Locking bolt 115 is threaded into threaded hole 114 and is used to lock and fix telescopic rod 200.

[0064] As a further preferred embodiment of the above-described embodiment, the propeller rod 120 includes:

[0065] Connector 121;

[0066] Blade 122 is mounted on connector 121;

[0067] The shaft 123 has one end fixedly installed in the connector 121, and the other end inserted into the inner cavity of the tube seat 110 and connected to the bearing 111.

[0068] As a further preferred embodiment of the above implementation, refer to Figure 3 As shown, the speed sensor 130 includes:

[0069] The speed sensor 131 is installed in the inner cavity of the tube seat 110 and measures the speed of the shaft 123.

[0070] Transmission line 132 is electrically connected to speed sensor 131.

[0071] As a further preferred embodiment of the above implementation, the maximum diameter of the telescopic rod 200 matches the diameter of the insertion hole 113.

[0072] As a further preferred embodiment of the above-described embodiment, one end of the lateral extension rod 300 is provided with a pressing end 310 for pressing down.

[0073] As a further preferred embodiment of the above implementation, refer to Figure 4-5 As shown, the angle measuring structure includes:

[0074] The indicator head 400 is fixedly installed at the upper end of the telescopic rod 200.

[0075] Angle measuring end head 500 is fixedly installed at one end of the transverse extension rod 300.

[0076] Furthermore, the indicator head 400 includes:

[0077] A reinforcing block 410 is fixedly installed at the upper end of the telescopic rod 200, and flat ends are provided on both sides of the reinforcing block 410.

[0078] A through hole 420 is horizontally opened on the reinforcing block 410, and both ends of the through hole 420 are on the flat end;

[0079] Indicator head 430 is fixedly mounted on the upper end of reinforcing block 410 and located on one side of the flat end.

[0080] Furthermore, the angle measuring end head 500 includes:

[0081] Threaded rod 510 is fixedly installed at one end of transverse extension rod 300 and inserted into through hole 420;

[0082] Nut 520 is threaded onto threaded rod 510 and is used to fix reinforcing block 410.

[0083] The protractor 530 is fixedly mounted on the upper end face of the end of the transverse extension rod 300 where the threaded rod 510 is located.

[0084] When fixing the telescopic rod 200, the reinforcing block 410 is tightened and fixed by tightening the nut 520 on the threaded rod 510.

[0085] By cooperating with the indicator end head 400 and the angle measuring end head 500, the tilt angle of the lateral extension rod 300 and the telescopic rod 200 can be flexibly adjusted, and the angle can be locked to ensure that the propeller speed measuring unit 100 measures the speed at the optimal angle, greatly improving the measurement accuracy and avoiding errors caused by angle deviation.

[0086] For example, when measuring water flow on a slope, as the water flows down the slope, the lateral extension rod 300 is placed flat on the bank. The tilt angle of the telescopic rod 200 is adjusted according to the angle of the slope so that the propeller speed measuring unit 100 can be placed in the water in a state close to parallel to the water surface for measurement.

[0087] When the water flow at the measurement point is nearly horizontal, the transverse extension rod 300 is placed flat on the bank, and a weight is placed on the pressure plate end 310 at one end of the transverse extension rod 300. The reinforcing block 410 is rotatably connected to the threaded rod 510 at one end of the transverse extension rod 300. By rotating the reinforcing block 410, the angle is indicated by the indicator head 430 and the protractor 530 to ensure that the telescopic rod 200 is perpendicular to the water surface. This allows the propeller speed measuring part 100 installed at the lower end of the telescopic rod 200 to be placed in the water in a state that is nearly parallel to the water surface. This prevents the end of the propeller speed measuring part 100 with the blades 122 from tilting upwards or downwards on the water surface, reduces the angle between the water flow direction and the measuring end of the equipment, and improves the measurement accuracy.

[0088] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable water flow rate measuring device, characterized in that, include: The propeller speed measuring unit (100) includes a tube seat (110) and a propeller rod (120) rotatably connected and installed at one end of the tube seat (110). The tube seat (110) is provided with a speed sensor (130) for measuring the rotational speed of the propeller rod (120) inserted into the tube seat (110). Telescopic rod (200), which is detachably plugged into the end of the tube seat (110) where the propeller rod (120) is not provided; A lateral extension rod (300) is rotatably connected to the upper end of the telescopic rod (200). The connection end of the lateral extension rod (300) and the telescopic rod (200) is also provided with an angle measuring structure for measuring the tilt angle between the lateral extension rod (300) and the telescopic rod (200).

2. A portable water flow rate measuring device according to claim 1, wherein, The tube seat (110) includes: A bearing (111) is disposed in the inner cavity of the tube seat (110) and is used to connect with one end of the propeller rod (120) inserted into the tube seat (110); A sealing gasket (112) is fixedly disposed at the pipe opening of the pipe seat (110); A plug hole (113) is vertically opened at one end of the tube seat (110) where the propeller rod (120) is not provided, for plugging and installing the telescopic rod (200); A threaded hole (114) is provided at one end of the tube seat (110) and communicates with the insertion hole (113); A locking bolt (115) is threaded into the threaded hole (114) and is used to lock and fix the telescopic rod (200).

3. A portable water flow rate measuring device according to claim 2, wherein The propeller rod (120) includes: Connector (121); A blade (122) is disposed on the connector (121); A shaft (123) is provided, one end of which is fixedly disposed in the connector (121), and the other end is inserted into the inner cavity of the tube seat (110) and connected to the bearing (111).

4. A portable water flow rate measuring device according to claim 3, wherein The speed sensor (130) includes: A speed sensor (131) is installed in the inner cavity of the tube seat (110) to measure the rotational speed of the shaft (123); A transmission line (132) is electrically connected to the speed sensor (131).

5. A portable water flow rate measuring device according to any one of claims 2, 3 or 4, wherein: The maximum diameter of the telescopic rod (200) matches the diameter of the insertion hole (113).

6. A portable water flow rate measuring device according to any one of claims 1, 2, 3 or 4, wherein: One end of the lateral extension rod (300) is provided with a pressure plate end (310) for pressing down.

7. The portable water flow rate measuring device of claim 1, wherein, The angle measuring structure includes: Indicator head (400), the indicator head (400) is fixedly disposed at the upper end of the telescopic rod (200); An angle measuring end head (500) is fixedly disposed at one end of the transverse extension rod (300).

8. A portable water flow velocity measuring device according to claim 7, characterized in that, The indicator head (400) includes: A reinforcing block (410) is fixedly installed at the upper end of the telescopic rod (200), and flat ends are provided on both sides of the reinforcing block (410); A through hole (420) is provided horizontally on the reinforcing block (410), and both ends of the through hole (420) are on the planar end; Indicator head (430) is fixedly disposed at the upper end of the reinforcing block (410) and located at the planar end on one side.

9. A portable water flow velocity measuring device according to claim 8, characterized in that, The angle measuring end head (500) includes: A threaded rod (510) is fixedly disposed at one end of the transverse extension rod (300) and inserted into the through hole (420); Nut (520), which is threaded onto the threaded rod (510), is used to fix the reinforcing block (410); A protractor (530) is fixedly mounted on the upper end face of one end of the transverse extension rod (300) where a threaded rod (510) is provided.

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