CN213517191U

CN213517191U - Flow velocity measuring device

Info

Publication number: CN213517191U
Application number: CN202023016810.6U
Authority: CN
Inventors: 黎伟; 侯锋; 张小沫; 何龙; 梁煜明; 刘松; 黄杨; 段舒祎; 付海波
Original assignee: Guizhou Zhuxin Water Affairs Environment Industry Co ltd; SDIC Xinkai Water Environment Investment Co Ltd
Current assignee: Guizhou Zhuxin Water Affairs Environment Industry Co ltd; SDIC Xinkai Water Environment Investment Co Ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-06-22
Anticipated expiration: 2030-12-14

Abstract

The utility model relates to a liquid velocity of flow measuring instrument technical field, concretely relates to velocity of flow measuring device, include: a measuring cylinder; the device comprises a connecting rubber tube, a measuring tube and a control part, wherein one end of the connecting rubber tube is communicated with the measuring tube, the other end of the connecting rubber tube is provided with a drainage tube, the connecting rubber tube is provided with the control part, and the connecting rubber tube has a first state that the drainage tube is communicated with the measuring tube and a second state that the drainage tube is locked by the control part and separated from the measuring tube; the breather pipe is connected on the measuring cylinder, and the breather pipe sets up with the drainage tube is perpendicular, installs linking bridge between drainage tube and the breather pipe. Need not to use power supply unit in the measurement process, no propeller equipment can not lose efficacy because of the existence debris in aqueous, even the drainage tube is blockked up by debris such as pasture and water, also can take out the back remeasurement with debris easily. The service life of the flow velocity measuring device is prolonged, and the measuring device can still keep higher measuring precision when being used for a plurality of times for a long time.

Description

Flow velocity measuring device

Technical Field

The utility model relates to a liquid velocity of flow measuring instrument technical field, concretely relates to velocity of flow measuring device.

Background

Large and small rivers and water conditions on land are unstable, some rivers flow constantly throughout the year, some are cut off in dry seasons, and some are flooded in flood seasons to cause disasters. In order to reasonably utilize river water resources, the change rule of the river must be mastered, the change of the river water situation is mainly expressed as the rising and falling of the water level and the speed of the flow rate, and the water level and the flow rate can be converted into the flow of the river through a formula.

At present, a fixed water level observation point is usually arranged in a river, a water level value can be obtained through a value obtained by a water gauge in the water level observation point, and when the river flow rate is detected, a buoy method is used, namely two points A and B are selected on a river bank, a buoy is placed on the river surface, the time required by the buoy to float from the point A to the point B is measured, the distance between the point A and the point B is measured, and the flow rate of the river can be measured, however, the accuracy of the river flow rate measured by the buoy method is low. In order to improve the accuracy of the measured flow velocity, a velocimeter is generally adopted for measurement, most of liquid velocimeters in the prior art are propeller type electronic instruments, a river impact propeller drives the propeller to rotate, and the rotating speed of the propeller is detected by a pulser measuring instrument so as to be converted into flow velocity information of the river. However, due to the limitation of power supply, the velocimeter needs to be equipped with a power supply device, and in the actual measurement, the electrical device is affected by the actual measurement environment, and the recorded data is prone to error due to water soaking. Compared with rivers with poor water quality, the river has more pollutants, and the propeller is easily wound by sundries such as aquatic weeds and floating garbage in water flow, so that the rotation of the propeller is limited, and the measurement fails.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the tachymeter among the prior art can be hindered and become invalid by the debris of aquatic when using in the relatively poor water of quality of water to a velocity of flow measuring device is provided.

In order to solve the technical problem, the utility model provides a flow velocity measuring device, include:

a measuring cylinder;

the device comprises a connecting rubber tube, a measuring tube and a control part, wherein one end of the connecting rubber tube is communicated with the measuring tube, the other end of the connecting rubber tube is provided with a drainage tube, the connecting rubber tube is provided with the control part, and the connecting rubber tube has a first state that the drainage tube is communicated with the measuring tube and a second state that the drainage tube is locked by the control part and separated from the measuring tube;

the breather pipe is connected on the measuring cylinder, and the breather pipe sets up with the drainage tube is perpendicular, installs linking bridge between drainage tube and the breather pipe.

Optionally, the control member comprises: the transmission part and a pair of splint that set up relatively, the one end of a pair of splint is articulated each other, it locates between a pair of splint to connect the rubber tube, be connected with the piece that resets between a pair of splint, the axis that resets is perpendicular with the axis of being connected the rubber tube, the piece that resets is close to splint articulated one end setting, install flexible connector on the splint, install the overlap joint spare on the linking bridge, flexible connector is around establishing on the overlap joint spare, flexible connector one end is connected with splint, the other end is connected with the transmission part, and two flexible connector tie points on the transmission part coincide.

Optionally, the end of the vent pipe away from the measuring cylinder is hinged with a swing rod, the rotation direction of the swing rod is parallel to the vent pipe, one end of the transmission part is connected with two flexible connecting parts, and the other end of the transmission part is connected with the swing rod.

Optionally, a fixed rod is further fixedly mounted at one end of the vent pipe, which is far away from the measuring cylinder, the fixed rod is perpendicular to the vent pipe, and the swing rod is hinged to the fixed rod.

Optionally, the flexible connector is a steel wire.

Optionally, the transmission member is parallel to the vent tube.

Optionally, the draft tube is a square tube, and the cross section of the draft tube perpendicular to the axial direction of the draft tube is square.

Optionally, the measuring cylinder is provided with graduation lines.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a flow velocity measurement device, include: a measuring cylinder; the device comprises a connecting rubber tube, a measuring tube and a control part, wherein one end of the connecting rubber tube is communicated with the measuring tube, the other end of the connecting rubber tube is provided with a drainage tube, the connecting rubber tube is provided with the control part, and the connecting rubber tube has a first state that the drainage tube is communicated with the measuring tube and a second state that the drainage tube is locked by the control part and separated from the measuring tube; the breather pipe is connected on the measuring cylinder, and the breather pipe sets up with the drainage tube is perpendicular, installs linking bridge between drainage tube and the breather pipe.

When the flow velocity of water in a flowing river is measured, the connecting rubber tube is firstly blocked by closing the control part, so that the connecting rubber tube is in a first state, the measuring cylinder and the drainage tube are extended into the river, the ventilation tube is ensured to vertically upwards leak out of the water surface, and river water is prevented from entering the measuring cylinder from the ventilation tube. And the measuring cylinder is controlled by personnel to be parallel to the flow direction of river water, at the moment, the control piece is opened to enable the drainage tube to be communicated with the measuring cylinder, the stopwatch is pressed to time, the river water enters the measuring cylinder from the drainage tube along the connecting rubber tube, after the preset time, the control piece is closed to block the river water entering the measuring cylinder, and the stopwatch is pressed to stop the time. The flow velocity of the river at the measured position can be calculated by recording the outlet area of the drainage tube, the time length recorded by the stopwatch and the water amount entering the measuring cylinder. Need not to use power supply unit in the measurement process, no propeller equipment can not lose efficacy because of the existence debris in aqueous, even the drainage tube is blockked up by debris such as pasture and water, also can take out the back remeasurement with debris easily. The service life of the flow velocity measuring device is prolonged, and the measuring device can still keep higher measuring precision when being used for a plurality of times for a long time.

2. The utility model provides a flow velocity measurement device, the control includes: the transmission part and a pair of splint that set up relatively, the one end of a pair of splint is articulated each other, it locates between a pair of splint to connect the rubber tube, be connected with the piece that resets between a pair of splint, the axis that resets is perpendicular with the axis of being connected the rubber tube, the piece that resets is close to splint articulated one end setting, install flexible connector on the splint, install the overlap joint spare on the linking bridge, flexible connector is around establishing on the overlap joint spare, flexible connector one end is connected with splint, the other end is connected with the transmission part, and two flexible connector tie points on the transmission part coincide. Under the normal condition, splint will be connected the rubber tube and press from both sides tightly for measuring a section of thick bamboo and drainage tube disconnection, through external force pulling driving medium, the driving medium drives two flexible connectors pulling splint and keeps away from each other, makes and connects the rubber tube and be in the first state of intercommunication, makes measuring a section of thick bamboo and drainage tube can communicate. The switch of the control piece can be controlled by pulling or loosening the transmission piece, so that the on-off of the connecting rubber tube is controlled, and the state of the connecting rubber tube is conveniently controlled.

3. The utility model provides a flow velocity measuring device, drainage tube are square pipe, and the cross-section of the axis direction of drainage tube perpendicular to drainage tube is the square. The convenient export area to the drainage tube is controlled and is calculated, and then simplifies the calculation of velocity of flow for can obtain velocity of flow data very fast after measuring.

4. The utility model provides a flow velocity measurement device is equipped with the scale mark on the measuring cylinder. After the measuring cylinder is taken out of the river, the water quantity in the measuring cylinder can be directly read without transferring the water in the measuring cylinder, and measuring errors caused by water sprinkling in the transferring process are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a flow velocity measuring device according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a control element provided in a first embodiment of the present invention.

Description of reference numerals: 1. a measuring cylinder; 2. connecting a rubber tube; 3. a breather pipe; 4. a drainage tube; 5. connecting a bracket; 6. fixing the rod; 7. a splint; 8. a transmission member; 9. a reset member; 10. a strut; 11. a lap joint; 12. a flexible connector; 13. a swing link.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Fig. 1 and 2 are views illustrating a flow rate measuring apparatus according to the present embodiment, including: the measuring cylinder 1 with scale is provided with a connecting rubber tube 2 and a vent pipe 3. The velocity of flow measuring device that this embodiment provided can carry out the velocity of flow to the better river of quality of water and measure, can also carry out the velocity of flow to the relatively poor fluid of quality of water such as drainage channel, city sewer, cut dirty ditch, big ditch of drainage and measure.

As shown in fig. 1, one end of a connecting rubber tube 2 is communicated with a measuring cylinder 1, the other end of the connecting rubber tube is provided with a drainage tube 4, a control part is arranged on the connecting rubber tube 2, the connecting rubber tube 2 has a first state that the drainage tube 4 is communicated with the measuring cylinder 1, and a second state that the drainage tube 4 is locked by the control part and separated from the measuring cylinder 1. The breather pipe 3 is connected on the measuring cylinder 1, and the breather pipe 3 sets up with the drainage tube 4 is perpendicular, installs linking bridge 5 between drainage tube 4 and the breather pipe 3.

As shown in fig. 2, the control member includes a transmission member 8 and a pair of oppositely disposed clamping plates 7, the transmission member 8 is parallel to the ventilation pipe 3, and the transmission member 8 may be a thin wire such as a polyethylene fiber wire, a nylon wire or a carbon wire, and in this embodiment, the nylon wire is selected. One ends of the pair of clamping plates 7 are hinged with each other, the connecting rubber tube 2 is arranged between the pair of clamping plates 7, and a spring serving as a reset piece 9 is connected between the pair of clamping plates 7. Under the action of the spring, the pair of clamping plates 7 are kept parallel, and the connecting rubber tube 2 is clamped flat, so that the connecting rubber tube 2 is sealed. The restoring member 9 may also be elastic rubber or iron sheet. The axis of the resetting piece 9 is vertical to the axis of the connecting rubber tube 2, and the resetting piece 9 is arranged close to one end of the clamping plate 7 in a hinged mode. A pair of supporting rods 10 are welded on the connecting support 5, the pair of supporting rods 10 are symmetrically arranged about a plane formed by the transmission piece 8 and the vent pipe 3, and a pair of fixed pulleys serving as overlapping pieces 11 are mounted on each supporting rod 10. The splint 7 is provided with a flexible connecting piece 12, and the flexible connecting piece 12 is a steel wire or a thin wire made of the same material as the transmission piece 8. Flexible connection spare 12 is through setting up on the fixed pulley in order to change the atress direction around, and flexible connection spare 12 one end is connected with splint 7, and the other end is connected with driving medium 8, and two flexible connection spare 12 tie points coincidence on driving medium 8, specifically, the lower extreme at the nylon wire is tied up jointly to two steel wires.

One end of the vent pipe 3, which is far away from the measuring cylinder 1, is hinged with a swing rod 13, the rotation direction of the swing rod 13 is parallel to the vent pipe 3, one end of the transmission part 8 is connected with two flexible connecting pieces 12, and the other end of the transmission part is connected with the swing rod 13. A fixed rod 6 is fixedly arranged at one end of the vent pipe 3 far away from the measuring cylinder 1, the fixed rod 6 is perpendicular to the vent pipe 3, and the swing rod 13 is hinged to the fixed rod 6. Utilize swing pendulum rod 13 to control driving medium 8 and stimulate, be convenient for control through setting up dead lever 6, through holding pendulum rod 13 and dead lever 6 for pendulum rod 13 is close to dead lever 6, can drive driving medium 8 pulling steel wire and then drive two splint 7 separations, makes and connects rubber tube 2 intercommunication, loosens pendulum rod 13, and under the effect that resets 9, two splint 7 reset and are close to each other, press from both sides the rubber tube tightly, make drainage tube 4 and measuring cylinder 1 disconnection.

In order to facilitate the calculation of river flow velocity, the drainage tube 4 is set to be a square tube, and the cross section of the drainage tube 4, which is perpendicular to the axial direction of the drainage tube 4, is square. The outlet area of the drainage tube 4 can be obtained quickly, and the outlet area of the drainage tube 4 is convenient to control and is an integer, so that the calculation is convenient. In order to rapidly obtain the river water volume in the measuring cylinder 1 and prevent the error caused by sprinkling or omission when the water in the measuring cylinder 1 is transferred, scale marks are arranged on the measuring cylinder 1, and the water volume in the measuring cylinder 1 is directly read through the scale marks on the measuring cylinder 1, so that the water volume data can be obtained.

When the flow velocity of water in a flowing river is measured, the connecting rubber tube 2 is clamped by the pair of clamping plates 7, the connecting rubber tube 2 is closed, the connecting rubber tube 2 is in a first state, the measuring cylinder 1 and the drainage tube 4 extend into the river, the ventilation tube 3 is guaranteed to vertically upwards leak out of the water surface, and river water is prevented from entering the measuring cylinder 1 from the ventilation tube 3. The measuring cylinder 1 is controlled by a person to be parallel to the flow direction of river water, at the moment, the swing rod 13 is held, the transmission piece 8 is driven to pull the flexible connecting piece 12, the clamping plate 7 is driven to be separated, so that the connecting rubber tube 2 is opened, the drainage tube 4 is communicated with the measuring cylinder 1, and meanwhile, the stopwatch is pressed to count time, and the river water enters the measuring cylinder 1 from the drainage tube 4 along the connecting rubber tube 2. After the preset time, the swing rod 13 is loosened, the clamping plate 7 is restored to the parallel state under the action of the spring to clamp and close the connecting rubber tube 2, the river entering the measuring cylinder 1 is blocked, and the stopwatch is pressed to stop timing. The flow rate of the river at the measured position can be calculated by recording the outlet area of the drainage tube 4, the duration recorded by the stopwatch and the amount of water entering the measuring cylinder 1.

Alternatively, the hinged ends of the pair of clamping plates can be fixedly connected, or the pair of clamping plates can be fixedly connected to an auxiliary plate, and the pair of clamping plates can be reset by the elasticity of the clamping plates after being separated from each other.

Alternatively, the pair of clamping plates may be a dovetail clamp.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A flow rate measuring device, comprising:

a measuring cylinder (1);

the device comprises a connecting rubber tube (2), one end of the connecting rubber tube (2) is communicated with the measuring cylinder (1), the other end of the connecting rubber tube is provided with a drainage tube (4), a control part is arranged on the connecting rubber tube (2), the connecting rubber tube (2) has a first state enabling the drainage tube (4) to be communicated with the measuring cylinder (1) and a second state enabling the drainage tube (4) to be separated from the measuring cylinder (1) by being locked by the control part;

the breather pipe (3) is connected on the measuring cylinder (1), the breather pipe (3) with the drainage tube (4) sets up perpendicularly, the drainage tube (4) with install linking bridge (5) between breather pipe (3).

2. The flow rate measurement device of claim 1, wherein the control member comprises: a transmission piece (8) and a pair of oppositely arranged clamping plates (7), wherein one ends of the clamping plates (7) are hinged with each other, the connecting rubber tube (2) is arranged between the pair of clamping plates (7), a reset piece (9) is connected between the pair of clamping plates (7), the axis of the reset piece (9) is vertical to the axis of the connecting rubber tube (2), the resetting piece (9) is arranged close to one hinged end of the clamping plate (7), the splint (7) is provided with a flexible connecting piece (12), the connecting bracket (5) is provided with a lapping piece (11), the flexible connecting piece (12) is wound on the overlapping piece (11), one end of the flexible connecting piece (12) is connected with the clamping plate (7), the other end is connected with the transmission piece (8), and the connection points of the two flexible connecting pieces (12) on the transmission piece (8) are superposed.

3. The flow rate measuring device according to claim 2, wherein the end of the vent pipe (3) away from the measuring cylinder (1) is hinged with a swing rod (13), the swing rod (13) rotates in a direction parallel to the vent pipe (3), one end of the transmission member (8) is connected with the two flexible connectors (12), and the other end of the transmission member is connected with the swing rod (13).

4. The flow rate measuring device according to claim 3, wherein a fixing rod (6) is further fixedly installed at one end of the vent pipe (3) far away from the measuring cylinder (1), the fixing rod (6) is perpendicular to the vent pipe (3), and the swing rod (13) is hinged to the fixing rod (6).

5. Flow rate measuring device according to any of claims 2 to 4, wherein said flexible connector (12) is a steel wire.

6. A flow rate measuring device according to any of claims 2 to 4, wherein the transmission member (8) is parallel to the vent tube (3).

7. The flow velocity measurement device according to any one of claims 1 to 4, wherein the draft tube (4) is a square tube, and a cross section of the draft tube (4) perpendicular to an axial direction of the draft tube (4) is a square.

8. The flow rate measuring device according to any one of claims 1 to 4, wherein the measuring cylinder (1) is provided with graduation marks.