Portable flowmeter

Abstract

The utility model relates to the technical field of measuring instruments, in particular to a portable flowmeter which comprises a rectangular plate, a mounting plate is arranged on the surface of the rectangular plate, a flow velocity sensor and a liquid level sensor are respectively mounted at the bottom end of the mounting plate, a threaded rod is mounted on one side of an inner cavity of the rectangular plate, and a threaded rod is mounted on the other side of the inner cavity of the rectangular plate. A guide rod is installed on the other side of an inner cavity of the rectangular plate, a rotary knob is installed at the top end of the rectangular plate at one end of the threaded rod, an inner cavity of the installation plate is connected with the surfaces of the threaded rod and the guide rod, and a baffle is installed on the rear surface of the rectangular plate. A worker only needs to stand on one side of the open channel, the device is attached to one side of the open channel, the height of the flow speed sensor and the height of the liquid level sensor are controlled to make contact with water, data can be measured, operation is easy, use is convenient and fast, and the device is suitable for most U-shaped open channels.

Description

Technical Field

[0001] The utility model relates to the field of measuring instruments, in particular to a portable flow meter. Background Art

[0002] Flow meters are generally used in open channels to measure the flow rate and water level of water in the open channel to ensure the stability of the water flow in the open channel;

[0003] A Chinese patent publication (publication number: CN220153633U) discloses a portable flow meter, including a housing, a support plate and a support mechanism; the housing: a display screen and a key panel are respectively arranged in the mounting holes on the front surface thereof, a single-chip microcomputer and a storage battery are respectively arranged inside the housing, the output end of the storage battery is electrically connected to the input end of the single-chip microcomputer, the output end of the single-chip microcomputer is electrically connected to the input end of the display screen, and the output end of the key panel is electrically connected to the input end of the single-chip microcomputer; the support plate: it is located on the left side of the housing, a flow rate sensor and a liquid level sensor are respectively arranged at the lower end of the support plate, a transmission line is arranged between the support plate and the housing, and the output ends of the flow rate sensor and the liquid level sensor are both electrically connected to the input end of the single-chip microcomputer through the transmission line;

[0004] Currently, most artificial open channels are U-shaped. Although this type of portable flow meter can be folded and convenient to carry, it is fixed by extending the support mechanism on both sides of the center of the open channel. This method requires the user to use tools to be above the center of the open channel or enter the open channel to contact the water flow and fix the flow meter. Since the height of the open channel may be high and the water flow rate in the open channel is fast, the above two methods both have certain risks. Utility Model Content

[0005] The purpose of the utility model is to provide a portable flow meter to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable flow meter, comprising a rectangular plate, a mounting plate is arranged on the surface of the rectangular plate, a flow rate sensor and a liquid level sensor are respectively installed on the bottom end of the mounting plate, a threaded rod is installed on one side of the inner cavity of the rectangular plate, a guide rod is installed on the other side of the inner cavity of the rectangular plate, a knob is installed on the top end of the rectangular plate at one end of the threaded rod, the inner cavity of the mounting plate is connected to the surface of the threaded rod and the guide rod, and a baffle is installed on the rear surface of the rectangular plate.

[0007] Preferably, a limiting groove is provided on the surface of the rectangular plate, and a connecting groove is provided at the bottom end of the baffle.

[0008] Preferably, a shell is installed in the inner cavity of the connecting groove, a battery is installed in the inner cavity of the shell, and a mainboard is installed in the inner cavity of the shell above the battery.

[0009] Preferably, a display screen is installed on the rear surface of the shell, and a plurality of buttons are installed on the rear surface of the shell outside the display screen.

[0010] Preferably, the top end of the mounting plate and the bottom end of the shell are both equipped with connecting ports.

[0011] Preferably, a rectangular groove is formed at the top of the baffle, and a handle is installed in the inner cavity of the rectangular groove.

[0012] Preferably, the rectangular plate and the baffle are L-shaped as a whole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] Since the device is L-shaped as a whole, and most open channels are U-shaped, when measuring, the staff only needs to stand on one side of the open channel, fit the device with one side of the open channel, and control the height of the flow sensor and the liquid level sensor to contact the water, and the data can be measured. It is simple to operate and easy to use, and is suitable for most U-shaped open channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection groove structure of the utility model;

[0019] Figure 4 It is a top view of the utility model.

[0020] In the figure: 1. rectangular plate; 101. mounting plate; 102. flow rate sensor; 103. liquid level sensor; 2. threaded rod; 201. guide rod; 202. knob; 203. baffle; 3. limit groove; 301. connection groove; 4. housing; 401. battery; 402. main board; 5. display screen; 501. button; 6. connection port; 7. rectangular groove; 701. handle. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0022] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0023] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0026] Embodiment 1

[0027] See also Figures 1 to 4 , the utility model provides a technical solution: a portable flow meter, comprising a rectangular plate 1, a mounting plate 101 is arranged on the surface of the rectangular plate 1, and a flow rate sensor 102 and a liquid level sensor 103 are respectively installed at the bottom end of the mounting plate 101;

[0028] By setting the flow rate sensor 102 and the liquid level sensor 103, the flow rate sensor 102 is mainly used to measure the flow rate of water in the open channel, and the liquid level sensor 103 is mainly used to measure the height of water in the open channel;

[0029] A threaded rod 2 is installed on one side of the inner cavity of the rectangular plate 1, a guide rod 201 is installed on the other side of the inner cavity of the rectangular plate 1, a knob 202 is installed on the top of the rectangular plate 1 at one end of the threaded rod 2, the inner cavity of the mounting plate 101 is connected to the surface of the threaded rod 2 and the guide rod 201, and a baffle 203 is installed on the rear surface of the rectangular plate 1;

[0030] When the U-shaped open channel is used to measure the flow rate and liquid level, the shell 4 is first removed so that the rear surface of the rectangular plate 1 can fit one side of the inner cavity of the open channel, and the bottom end of the baffle 203 is in contact with the ground to support the rectangular plate 1. When the fitting is completed, a heavy object is placed on the top of the baffle 203 or the top of the baffle 203 is stepped on by the foot to prevent the center of gravity from changing during the descent of the mounting plate 101, thereby causing the device to fall into the open channel. When the flow rate sensor 102 and the liquid level sensor 103 are needed, When making contact measurement of water in an open channel, firstly rotate the knob 202, and the threaded rod 2 at the top of the knob 202 rotates. The rotation of the threaded rod 2 can drive the mounting plate 101, the flow rate sensor 102, and the liquid level sensor 103 to descend, so as to make contact with the water and make measurement. At the same time, the knob 202 can also be replaced with a waterproof motor, so that the waterproof motor drives the threaded rod 2 to rotate, thereby improving the measurement efficiency. Since the measurement requires long-term contact with water, the device needs to use waterproof and stainless materials to avoid rust, which makes it unusable.

[0031] Embodiment 2

[0032] On the basis of the first embodiment, a limiting groove 3 is provided on the surface of the rectangular plate 1, and a connecting groove 301 is provided at the bottom end of the baffle 203;

[0033] By setting the limit groove 3, during the descending process of the mounting plate 101, the limit groove 3 can not only guide and limit the mounting plate 101, but also limit the descending height of the mounting plate 101 to avoid exceeding the maximum descending stroke and causing damage to the device. The connecting groove 301 is mainly used for installing the shell 4. The shell 4 and the connecting groove 301 need to fit tightly to avoid the shell 4 falling off in the inner cavity of the connecting groove 301 during the movement, causing damage to the shell 4.

[0034] Embodiment 3

[0035] On the basis of the second embodiment, the inner cavity of the connection slot 301 is installed with a housing 4, the inner cavity of the housing 4 is installed with a battery 401, and the inner cavity of the housing 4 above the battery 401 is installed with a mainboard 402;

[0036] By setting up the storage battery 401, the storage battery 401 is mainly used to provide the required power to the main board 402, the flow rate sensor 102 and the liquid level sensor 103, and the main board 402 is mainly used to transmit data to the display screen 5 for display, as well as store data and receive data.

[0037] Embodiment 4

[0038] On the basis of the third embodiment, a display screen 5 is installed on the rear surface of the housing 4, and a plurality of buttons 501 are installed on the rear surface of the housing 4 outside the display screen 5;

[0039] By providing the display screen 5, the display screen 5 is mainly used to display the data measured by the flow rate sensor 102 and the liquid level sensor 103, and the button 501 is mainly used to control the main board 402 to store data and stop measurement.

[0040] Embodiment 5

[0041] On the basis of the first embodiment, the top end of the mounting plate 101 and the bottom end of the housing 4 are both provided with a connection port 6;

[0042] By setting the connection port 6, the connection port 6 is mainly used to connect the data cable, and the data cable can transmit the data measured by the flow rate sensor 102 and the liquid level sensor 103 to the main board 402 in the inner cavity of the shell 4, and the main board 402 then transmits the data to the display screen 5 and displays the data for the user to watch. At the same time, the data cable can also transmit the electric energy of the battery 401 to the flow rate sensor 102 and the liquid level sensor 103 for the flow rate sensor 102 and the liquid level sensor 103 to measure.

[0043] Embodiment 6

[0044] On the basis of the first embodiment, a rectangular groove 7 is formed at the top of the baffle 203, and a handle 701 is installed in the inner cavity of the rectangular groove 7;

[0045] By setting the handle 701, after the measurement is completed, the handle 701 in the inner cavity of the rectangular groove 7 can be rotated out, so as to facilitate the screwing of the device. During the measurement, the handle 701 can also be hidden in the inner cavity of the rectangular groove 7 to avoid the handle 701 protruding and affecting the operation.

[0046] Embodiment 7

[0047] On the basis of the first embodiment, the rectangular plate 1 and the baffle 203 are L-shaped as a whole;

[0048] The overall L-shape, since the flow meter is generally used in an open channel, and the open channel is generally U-shaped, the rear surface of the rectangular plate 1 can fit one side of the inner cavity of the open channel, and the bottom end of the baffle 203 is in contact with the ground to support the rectangular plate 1, thereby more conveniently measuring the flow rate and liquid level. At the same time, since the shell 4 is arranged at the inner right angle formed by the rectangular plate 1 and the baffle 203, when it falls, the inner right angle can prevent the shell 4 from directly contacting the ground, thereby protecting the shell 4 and reducing unnecessary damage.

[0049] When the utility model is in use, when it is used to measure the flow rate and liquid level of a U-shaped open channel, the shell 4 is first removed so that the rear surface of the rectangular plate 1 can fit one side of the inner cavity of the open channel, and the bottom end of the baffle 203 is in contact with the ground to support the rectangular plate 1. When the fitting is completed, a heavy object is placed on the top of the baffle 203 or the top of the baffle 203 is stepped on by the foot. Secondly, when the flow rate sensor 102 and the liquid level sensor 103 need to contact and measure the water in the open channel, first use the data line to connect with the connecting port 6, and then rotate the knob 202, and the threaded rod 2 at the top of the knob 202 rotates. The rotation of the threaded rod 2 can drive the mounting plate 101 and the flow rate sensor 102 and the liquid level sensor 103 to descend, so as to contact and measure the water. The data measured by the flow rate sensor 102 and the liquid level sensor 103 are transmitted to the main board 402 in the inner cavity of the shell 4 through the data line, and the main board 402 transmits the data to the display screen 5 and displays the data for the user to view.

[0050] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0051] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A portable flow meter, comprising a rectangular plate (1), a mounting plate (101) being arranged on the surface of the rectangular plate (1), a flow rate sensor (102) and a liquid level sensor (103) being respectively mounted on the bottom end of the mounting plate (101), characterized in that: A threaded rod (2) is installed on one side of the inner cavity of the rectangular plate (1), a guide rod (201) is installed on the other side of the inner cavity of the rectangular plate (1), a knob (202) is installed on the top of the rectangular plate (1) at one end of the threaded rod (2), the inner cavity of the mounting plate (101) is connected to the surface of the threaded rod (2) and the guide rod (201), and a baffle (203) is installed on the rear surface of the rectangular plate (1).

2. A portable flow meter according to claim 1, characterized in that: A limiting groove (3) is provided on the surface of the rectangular plate (1), and a connecting groove (301) is provided at the bottom end of the baffle (203).

3. A portable flow meter according to claim 2, characterized in that: A housing (4) is installed in the inner cavity of the connection slot (301), a storage battery (401) is installed in the inner cavity of the housing (4), and a mainboard (402) is installed in the inner cavity of the housing (4) above the storage battery (401).

4. A portable flow meter according to claim 3, characterized in that: A display screen (5) is installed on the rear surface of the housing (4), and a plurality of buttons (501) are installed on the rear surface of the housing (4) outside the display screen (5).

5. A portable flow meter according to claim 1, characterized in that: The top end of the mounting plate (101) and the bottom end of the housing (4) are both provided with connection ports (6).

6. A portable flow meter according to claim 1, characterized in that: A rectangular groove (7) is provided at the top end of the baffle (203), and a handle (701) is installed in the inner cavity of the rectangular groove (7).

7. A portable flow meter according to claim 1, characterized in that: The rectangular plate (1) and the baffle (203) are L-shaped as a whole.

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