Portable flow meter

Abstract

The utility model relates to the technical field of water body monitoring equipment, in particular to a portable flow velocity meter, which comprises a main control module used for recording, correcting and displaying flow velocity information, a flow velocity meter body, a throwing hand lever and a connecting cable, the current meter body comprises a mounting bracket, a guide cylinder, a propeller speed measuring device and a balance empennage, the propeller speed measuring device is coaxially mounted in the middle of the mounting bracket, and the propeller speed measuring device is electrically connected with the main control module through a connecting cable. The main control module, the current meter body, the throwing hand lever and the connecting cable which are connected into a whole are adopted, the current meter is convenient to carry and suitable for field work of an operator, meanwhile, the stability of the current meter body in a water body can be improved by adopting the guide cylinder and the balance tail wing, and the speed measurement precision is improved; meanwhile, the propeller speed measuring device can be protected from being collided, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of water body monitoring equipment, in particular to a portable flow meter. Background Art

[0002] A spiral flow meter, also known as a propeller flow meter or propeller flow meter, is a device used to measure the flow rate of water or other liquids. It is based on the principles of fluid mechanics and indirectly determines the flow rate of the fluid by measuring the speed at which the propeller rotates in the fluid. It is suitable for flow rate measurement in open or semi-open water bodies such as open channels, rivers, streams, drains, and pipelines. Due to its small and compact size, it is often used by operators when conducting water monitoring work in the field. However, in specific work, the existing spiral flow meters require cumbersome preliminary deployment work when used, such as preparing the main control device, connecting communication cables, hanging the spiral flow meter, and adjusting the position and height of the spiral flow meter in the water body, which is time-consuming and laborious to use. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the existing spiral flow meter has complicated operation steps, is time-consuming and labor-intensive, and is not suitable for field work.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a portable flow meter, comprising a main control module for recording, correcting and displaying flow rate information, a flow meter body, a throwing handle and a connecting cable, wherein the main control module is installed at the handle part of the throwing handle, the head end of the flow meter body is connected to the throwing handle through a connecting cable, the flow meter body comprises a mounting bracket, a guide tube, a propeller speed measuring device and a balancing tail, the head end of the mounting bracket is connected to the throwing handle through a connecting cable, the guide tube is installed at the head end of the mounting bracket, the guide tube and the mounting bracket are coaxially arranged, the propeller speed measuring device is coaxially installed in the middle part of the mounting bracket, the propeller speed measuring device is electrically connected to the main control module through a connecting cable, and the balancing tail is installed at the tail end of the mounting bracket.

[0005] When the utility model is working, a main control module, a flow meter body, a throwing hand lever and a connecting cable are connected in one body, which is easy to carry and suitable for field use by operators. At the same time, the use of a guide tube and a balancing tail wing can improve the stability of the flow meter body in the water body and improve the speed measurement accuracy. At the same time, it can also protect the propeller speed measuring device from collision and increase the service life.

[0006] Preferably, a plurality of connecting columns are protruding inwardly from the inner surface of the guide tube, and the guide tube is connected to the mounting bracket via the plurality of connecting columns. The end surface of the head end of the guide tube is arranged as an arc surface, and the outer surface of the guide tube gradually expands outward from the head end of the guide tube toward the direction close to the tail end of the guide tube to the middle of the guide tube and then bends and is arranged coaxially with the inner surface of the guide tube.

[0007] Preferably, the balancing tail wing includes at least one first tail wing, at least one second tail wing and at least two third tail wings, the buoyancy of the third tail wing in water is greater than the buoyancy of the first tail wing and less than the buoyancy of the second tail wing, the first tail wing and the second tail wing are symmetrically extended along the direction of the water flow and arranged at the tail end of the mounting bracket, and the third tail wing is extended along the direction of the water flow and arranged at the tail end of the mounting bracket and is located between the first tail wing and the second tail wing.

[0008] Preferably, it further comprises a float and a connecting rope with adjustable length, one end of the connecting rope is connected to the float, and the other end of the connecting rope is installed on the connecting cable in a limit position that can be moved along the direction in which the connecting cable extends.

[0009] Preferably, the portion where the throwing handle is connected to the connecting cable is made of elastic material.

[0010] The beneficial technical effects of the utility model include:

[0011] The utility model adopts a main control module, a current meter body, a launching handle and a connecting cable which are connected in one body, is easy to carry and is suitable for use by operators in field work. At the same time, the use of a guide tube and a balancing tail wing can improve the stability of the current meter body in the water body and improve the speed measurement accuracy. At the same time, it can also protect the propeller speed measuring device from collision and increase its service life.

[0012] Other features and advantages of the present invention will be disclosed in detail in the following specific implementations and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings:

[0014] Figure 1 It is a structural schematic diagram of a portable flow meter;

[0015] Figure 2 for Figure 1 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0016] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0017] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0018] Please see attached Figure 1 This embodiment discloses a portable flow meter, including a main control module 1 for recording, correcting and displaying flow rate information, a flow meter body 2, a throwing handle 3 and a connecting cable 4, which will be described in detail below with reference to the accompanying drawings.

[0019] Please see attached Figure 1 and attached Figure 2 In this embodiment, the main control module 1 is installed at the handle of the throwing handle 3, the head end of the current meter body 2 is connected to the throwing handle 3 through the connecting cable 4, the current meter body 2 includes a mounting bracket 21, a guide tube 22, a propeller speed measuring device 23 and a balancing tail 24, the guide tube 22 is installed at the head end of the mounting bracket 21, the guide tube 22 and the mounting bracket 21 are coaxially arranged, the propeller speed measuring device 23 is coaxially installed in the middle of the mounting bracket 21, the propeller speed measuring device 23 is electrically connected to the main control module 1 through the connecting cable 4, and the balancing tail 24 is installed at the tail end of the mounting bracket 21.

[0020] When the present embodiment is working, the main control module 1, the velocity meter body 2, the launching handle 3 and the connecting cable 4 are connected into one body, which is convenient to carry and suitable for use by operators in the field. Meanwhile, the guide tube 22 and the balancing tail wing 24 can improve the stability of the velocity meter body 2 in the water body and the speed measurement accuracy, and can also protect the propeller speed measuring device 23 from collision and improve the service life.

[0021] Preferably, the inner surface of the guide tube 22 is provided with a plurality of connecting columns 221 protruding inwardly, and the guide tube 22 is connected to the mounting bracket 21 via the plurality of connecting columns 221. The head end face of the guide tube 22 is arranged as an arc surface, and the outer surface of the guide tube 22 gradually expands outward from the head end of the guide tube 22 toward the direction close to the tail end of the guide tube 22 to the middle of the guide tube 22 and then bends and is coaxially arranged with the inner surface of the guide tube 22, which can improve the flow guidance effect and avoid the influence of eddy current separation on the speed measurement accuracy.

[0022] In a specific implementation, the balancing tail 24 includes at least one first tail 241, at least one second tail 242 and at least two third tails 243. The buoyancy of the third tail 243 in the water is greater than the buoyancy of the first tail 241 and less than the buoyancy of the second tail 242. The first tail 241 and the second tail 242 are symmetrically extended along the direction of the water flow and arranged at the tail end of the mounting bracket 21. The third tail 243 is extended along the direction of the water flow and arranged at the tail end of the mounting bracket 21 and is located between the first tail 241 and the second tail 242. The balancing tail 24 is used to improve the stability of the current meter body 2 in the water body, avoid the current meter body 2 from rotating, and improve the measurement effect.

[0023] As a further improvement of this embodiment, it also includes a float 5 and a connecting rope 6 with adjustable length. One end of the connecting rope 6 is connected to the float 5, and the other end of the connecting rope 6 can be installed on the connecting cable 4 in a limit position that can be moved along the extending direction of the connecting cable 4. When the water body is complex and long-term speed measurement is required, the head end of the throwing handle 3 can be inserted into the riverbed to serve as a fixed fulcrum. At the same time, the float 5 can maintain the height of the flow meter body 2 in the water body within a suitable range through the connecting rope 6 of appropriate length, which can reduce the difficulty of operation and improve measurement accuracy.

[0024] Preferably, the portion where the throwing handle 3 is connected to the connecting cable 4 is made of elastic material, which can increase the service life of the connecting cable 4 and enhance the user experience of the operator.

[0025] The beneficial technical effects of this embodiment include: a main control module, a flow meter body, a launching handle and a connecting cable connected in one body, which is easy to carry and suitable for use by operators in the field; at the same time, the use of a guide tube and a balancing tail wing can improve the stability of the flow meter body in the water body and the speed measurement accuracy, while also protecting the propeller speed measuring device from collision and increasing its service life.

[0026] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A portable flow meter, characterized in that: The invention comprises a main control module (1) for recording, correcting and displaying flow rate information, a flow meter body (2), a launching handle (3) and a connecting cable (4), wherein the main control module (1) is installed at the handle portion of the launching handle (3), the head end of the flow meter body (2) is connected to the launching handle (3) via the connecting cable (4), the flow meter body (2) comprises a mounting bracket (21), a guide tube (22), a propeller speed measuring device (23) and a balancing tail (24), and the mounting bracket ( The head end of the mounting bracket (21) is connected to the launching handle (3) through a connecting cable (4), the guide tube (22) is installed at the head end of the mounting bracket (21), the guide tube (22) and the mounting bracket (21) are coaxially arranged, the propeller speed measuring device (23) is coaxially installed in the middle of the mounting bracket (21), the propeller speed measuring device (23) is electrically connected to the main control module (1) through a connecting cable (4), and the balancing tail (24) is installed at the tail end of the mounting bracket (21).

2. A portable flow meter according to claim 1, characterized in that: The inner surface of the guide tube (22) is provided with a plurality of connection columns (221) protruding inwardly, and the guide tube (22) is connected to the mounting bracket (21) via the plurality of connection columns (221). The head end surface of the guide tube (22) is arranged as an arc surface.

3. A portable flow meter according to claim 1, characterized in that: The balancing tail (24) comprises at least one first tail (241), at least one second tail (242) and at least two third tails (243); the buoyancy of the third tail (243) in water is greater than the buoyancy of the first tail (241) and less than the buoyancy of the second tail (242); the first tail (241) and the second tail (242) are symmetrically extended along the direction of water flow and arranged at the tail end of the mounting bracket (21); the third tail (243) is extended along the direction of water flow and arranged at the tail end of the mounting bracket (21) and is located between the first tail (241) and the second tail (242).

4. A portable flow meter according to claim 1, characterized in that: It also comprises a floating ball (5) and a connecting rope (6) of adjustable length, one end of the connecting rope (6) being connected to the floating ball (5), and the other end of the connecting rope (6) being installed on the connecting cable (4) in a limited manner so as to be movable along the direction in which the connecting cable (4) extends.

5. A portable flow meter according to claim 1, characterized in that: The portion where the throwing handle (3) is connected to the connecting cable (4) is configured to be made of elastic material.

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