CN210181067U

CN210181067U - Flow velocity meter

Info

Publication number: CN210181067U
Application number: CN201921260616.7U
Authority: CN
Inventors: Xue Xiao; 肖雪; Wenbing Luo; 罗文兵; Dong Wang; 王冬
Original assignee: Changjiang River Scientific Research Institute Changjiang Water Resources Commission
Current assignee: Changjiang River Scientific Research Institute Changjiang Water Resources Commission
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-03-24
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a current meter, including thick liquid portion, installation department and fin portion soon of combining in proper order, be equipped with the mouth on the installation department, be equipped with the rod cover in the mouth of crossing, the rod cover be used for with the measuring staff installation cooperation, the rod cover through the pivot with the installation department rotates to be connected, fin portion includes connecting rod and the first fin of vertical setting, the second fin of horizontal setting, first fin with the equal fixed mounting of second fin is in on the connecting rod, the connecting rod with installation department fixed connection. The rod sleeve is rotatably connected with the mounting part through the rotating shaft and is matched with the second tail wing which is transversely arranged, when the rod sleeve is mounted on the measuring rod, water flow can drive the flow velocity meter to rotate through the second tail wing, so that the rotating propeller part is along the water flow direction, and the error in flow velocity measurement is reduced.

Description

Flow velocity meter

Technical Field

The utility model relates to a flow measurement technical field especially relates to a current meter.

Background

In open fluid measurement, such as flow measurement of rivers and ditches, a current meter is used for measuring the speed of water flow.

In the measurement of the ditch, a mechanical flow velocity meter with low price is generally adopted. The concrete structure of mechanical type current meter is generally including revolving thick liquid, installation department and afterbody portion, fixes the installation department on the measuring staff, put into the aquatic of flow with whole current meter again can, when rivers drive to revolve thick liquid and rotate, begin to obtain the velocity of flow of rivers promptly.

The existing mechanical type current meter is fixed on a measuring rod, and when the measuring rod is placed in water, the rotating speed of the rotating slurry is easily deviated downwards or upwards, so that the current flow rate cannot be accurately reflected, and errors are generated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a revolve thick liquid portion can be along the current meter of rivers direction.

The utility model provides a current meter, includes thick liquid portion, installation department and fin portion soon of combining in proper order, be equipped with the mouth on the installation department, be equipped with the rod cover in the mouth, the rod cover is used for installing the cooperation with the measuring staff, the rod cover through the pivot with the installation department rotates to be connected, fin portion includes connecting rod and the first fin of vertical setting, the second fin of horizontal setting, first fin with the equal fixed mounting of second fin is in on the connecting rod, the connecting rod with installation department fixed connection.

The utility model has the advantages that: the rod sleeve is rotatably connected with the mounting part through the rotating shaft and is matched with the second tail wing which is transversely arranged, when the rod sleeve is mounted on the measuring rod, water flow can drive the flow velocity meter to rotate through the second tail wing, so that the rotating propeller part is along the water flow direction, and the error in flow velocity measurement is reduced.

In addition, according to the utility model provides a current meter can also have following additional technical characterstic:

further, the both ends of rod cover are stretched out the installation department is outside, the spacing ring is all connected at the both ends of rod cover, the spacing ring with rod cover screw-thread fit, the spacing ring be used for with the outer wall contact of installation department.

Furthermore, the outer surface of the limiting ring is provided with a friction edge.

Further, the installation part is of a cylindrical structure, and the joint of the rod sleeve and the rotating shaft is of a protruding structure.

Further, the installation department is close to spacing ring department is equipped with the boss, the boss be used for with the spacing ring contact, the boss with the contact surface of spacing ring is the plane.

Further, both ends of the first tail wing and the second tail wing are of a rounded corner structure.

Furthermore, the first tail wing and the second tail wing are both installed on the connecting rod in an embedded mode.

Furthermore, a heavy hammer is arranged on one side, close to the rotating part, of the mounting part and used for balancing the weight of two sides of the rotating shaft.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a flow meter according to a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the flow meter of FIG. 1;

FIG. 3 is a schematic cross-sectional view of A-A of FIG. 1;

FIG. 4 is a schematic view of the mounting arrangement of the first tail wing and the second tail wing of FIG. 1;

in the figure: 1-propeller part, 2-installation part, 21-rod sleeve, 211-bulge, 22-rotating shaft, 23-limiting ring, 24-gap, 25-heavy hammer, 26-boss, 3-tail part, 31-first tail, 32-second tail and 33-connecting rod.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be 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 according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, 2 and 4, a first embodiment of the present invention provides a current meter, which includes a propeller portion 1, an installation portion 2 and a tail portion 3 combined in sequence.

Specifically, be equipped with mouth 24 on installation department 2, be equipped with pole sleeve 21 in the mouth 24, pole sleeve 21 is used for cooperating with the measuring staff installation, pole sleeve 21 through pivot 22 with installation department 2 rotates the connection, afterbody portion 3 includes connecting rod 32 and the first fin 31 of vertical setting, the second fin 32 of horizontal setting, first fin 31 with the equal fixed mounting of second fin 32 is in on the connecting rod 33, connecting rod 33 with 2 fixed connection of installation department.

The utility model has the advantages of, rotate rod cover 21 through pivot 22 and installation department 2 and be connected, the horizontal second fin 32 that sets up of cooperation, when rod cover 21 was installed on the measuring staff, rivers can drive the velocity of flow appearance through second fin 32 and rotate, make and revolve thick liquid portion 1 along with the rivers direction, reduced the error when velocity of flow measurement.

In this embodiment, a snap ring may be provided on the measuring rod, the snap ring can change the radius of its inner ring, and the relative position of the rod sleeve 21 and the measuring rod is fixed by the snap ring.

Preferably, the both ends of rod cover 21 are stretched out the outside of installation department 2, spacing ring 23 is all connected at the both ends of rod cover 21, spacing ring 23 with rod cover 21 screw-thread fit, spacing ring 23 be used for with the outer wall contact of installation department 2.

It can be understood that when the measuring rod rotates the limiting ring 23, the limiting ring 23 will move on the rod sleeve 23, and when the limiting ring 23 contacts with the outer wall of the mounting part 2, the rod sleeve 21 cannot rotate continuously, so as to lock the rod sleeve 21. This structure can be used to when need not to adopt the automatic rotation function of current meter, not hard up or demolish stop collar 23 and can reply the rotation function of current meter fast.

In addition, the appearance of spacing ring 21 is equipped with the friction arris, can increase the frictional force of spacing ring 21 surface, is convenient for artifically rotate spacing ring 21.

Referring to fig. 3, specifically, the mounting portion 2 is a cylindrical structure, and a connection portion between the rod sleeve 21 and the rotating shaft 22 is a protruding structure.

It should be noted that when the connection between the rod cover 21 and the rotating shaft 22 is a protruding structure, the shortest distance between the rod cover 21 and the inner wall of the mounting portion 2 is shortened, and a shorter rotating shaft 22 can be used. The short shaft 22 is less likely to break than the long shaft, increasing the strength of the shaft 22 and prolonging the service life of the rheometer.

Preferably, the mounting portion 2 is provided with a boss 26 near the position of the stop collar 23, the boss 26 is used for contacting with the stop collar 23, and the contact surfaces of the boss 26 and the stop collar 23 are both planes.

It will be appreciated that the mounting portion 2 is cylindrical and the stop collar 23 does not make good abutting contact with the mounting portion 2, resulting in some twisting of the sleeve 21 even after the stop collar 23 is tightened. The boss 26 can be in planar contact with the stop collar 23, so that the stop collar 23 is more stable when being screwed down.

In addition, both ends of the first tail wing 31 and the second tail wing 32 are rounded structures, which can prevent sharp corners from scratching a user and reduce the impact of water flow.

Preferably, the first tail wing 31 and the second tail wing 32 are embedded and installed on the connecting rod 33, and can be fixed by bonding or screws, so that the contact area between the connecting rod 33 and the first tail wing 31 and the second tail wing 32 is increased, and the first tail wing 31 and the second tail wing 32 are less prone to falling off.

In addition, a weight 25 is disposed on one side of the mounting portion 2 close to the rotating portion 1, and the weight 25 is used for balancing the weight on both sides of the rotating shaft 22.

It should be noted that, in a natural state, if the weight on both sides of the rotating shaft 22 is not balanced, the flow meter may be inclined by gravity due to the rotating shaft 22, and when the flow meter is placed in water, the propeller may be oriented to the water flow direction only at a certain water flow strength.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a current meter, includes thick liquid portion, installation department and afterbody portion soon of combining in proper order, a serial communication port, be equipped with the mouth on the installation department, be equipped with the rod cover in the mouth, the rod cover be used for with the measuring staff installation cooperation, the rod cover through the pivot with the installation department rotates and connects, first fin that empennage portion includes connecting rod and vertical setting, the second fin of horizontal setting, first fin with the equal fixed mounting of second fin is in on the connecting rod, the connecting rod with installation department fixed connection.

2. The flow meter according to claim 1, wherein both ends of the rod sleeve extend out of the mounting portion, both ends of the rod sleeve are connected with limit rings, the limit rings are in threaded fit with the rod sleeve, and the limit rings are used for contacting with the outer wall of the mounting portion.

3. The flowmeter of claim 2 wherein the stop collar is externally provided with a friction ridge.

4. The flowmeter of claim 1, wherein the mounting portion is cylindrical and the connection between the stem sleeve and the shaft is a protrusion.

5. The flowmeter of claim 2, wherein the mounting portion is provided with a boss adjacent to the stop collar, the boss is configured to contact the stop collar, and contact surfaces of the boss and the stop collar are both flat surfaces.

6. The rheometer of claim 1, wherein the first and second fins are rounded at both ends.

7. The rheometer of claim 1, wherein the first fin and the second fin are both mounted in-line on the connecting rod.

8. The flowmeter of claim 1, wherein a weight is disposed on a side of the mounting portion adjacent to the rotating portion, and the weight is used for balancing the weight on both sides of the rotating shaft.