CN210719296U

CN210719296U - Flow meter

Info

Publication number: CN210719296U
Application number: CN201921816066.2U
Authority: CN
Inventors: 钱晓慧; 周洋洋; 于赫男
Original assignee: Beijing Tianrun Construction Co Ltd
Current assignee: Beijing Tianrun Construction Co Ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-06-09
Anticipated expiration: 2029-10-25

Abstract

The utility model relates to a measurement work piece technical field especially relates to a flowmeter. It is used for measuring the flow of concrete or mortar, including: the casing comprises a flow tube and a protective cover, the flow tube is connected with the pump, and the protective cover is arranged outside the flow tube and communicated with the flow tube; the impeller is arranged in the cavity of the shell and can be rotatably arranged on the protective cover; and the counting assembly is used for recording the rotation number of the impeller. The circumference of one circle of rotation of the impeller is equal to the moving length of the concrete, the flowing volume of the concrete or mortar can be obtained by multiplying the cross section area of the flow tube by the moving length of the concrete after the cross section area of the flow tube is calculated, the flowmeter is directly connected with a pump, and when the pump pumps the concrete or mortar, the flowmeter can accurately measure the volume of the concrete or mortar, thereby avoiding the shortage of the concrete or mortar and increasing the cost; and the time is not occupied during detection, so that the detection waiting time is saved.

Description

Flow meter

Technical Field

The utility model relates to a measurement work piece technical field especially relates to a flowmeter.

Background

At present, the construction industry in China develops rapidly, the demand of premixed concrete is large, concrete required by a construction site is provided by a concrete supplier, the concrete is usually measured according to the tonnage of an adopted transport vehicle, namely the concrete is measured according to the weight, the traditional concrete volume measurement is the volume of a ground pump measuring weight or an ash bucket measuring volume, the ground pump measurement is limited by site conditions and capital reasons of the construction site, and the detection result has large errors; the ash bucket measurement has influence on the construction speed due to low speed, and cannot be well applied.

Therefore, a flow meter is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flowmeter, the in-process that can pump extraction concrete or mortar begins to detect, need not to detect alone, and detects the precision height, avoids concrete or mortar to lack the side, incremental cost.

To achieve the purpose, the utility model adopts the following technical proposal:

there is provided a flow meter for measuring a flow rate of concrete or mortar, comprising:

a housing including a flow tube connected to a pump and a shield disposed outside the flow tube and in communication with the flow tube;

the impeller is arranged in the cavity of the shell and can be rotatably arranged on the protective cover;

and the counting assembly is used for recording the rotation number of the impeller.

As an optimal technical scheme of above-mentioned flowmeter, the count subassembly includes counter, inductive switch and magnetic sheet, the counter with the inductive switch electricity is connected, the magnetic sheet the counter with inductive switch all set up in the protection casing is outside, just the magnetic sheet set up in the pivot of impeller, the magnetic sheet with the inductive switch cooperation detects the impeller and rotates, the counter records the impeller pivoted number of turns.

As a preferable technical solution of the above flowmeter, the rotating shaft of the impeller is hermetically and rotatably connected to the protective cover.

As a preferable technical solution of the above flowmeter, a cleaning opening is provided on the housing, and a cleaning opening cap is provided on the cleaning opening.

As a preferable technical solution of the above flowmeter, the cleaning opening is provided at a top of the protective cover.

As a preferred technical scheme of the above flowmeter, the protective cover comprises a side plate and an arc-shaped plate, and the two sides of the arc-shaped plate are respectively provided with one side plate.

As a preferable technical solution of the above flowmeter, the cleaning opening is provided on the arc-shaped plate.

As a preferable technical solution of the flowmeter, the protective cover is welded to the flow tube.

As a preferable technical solution of the above flowmeter, the protective cover is connected to the flow tube by a bolt and a clip, and a sealing gasket is provided at a joint of the protective cover and the flow tube.

The utility model discloses beneficial effect:

the utility model provides a flowmeter, the count subassembly is used for recording the impeller and rotates the number of turns, and the girth that the impeller rotated the round equals the length that the concrete removed, the cross-sectional area of flow tube multiply concrete removal length can obtain the outflow volume of concrete or mortar after calculating the sectional area of flow tube, this flowmeter directly is connected with the pump, when the pump was taken concrete or mortar, this kind of flowmeter can be accurate measure concrete or mortar volume, avoid concrete or mortar to lack the side, increase cost; and the time is not occupied during detection, so that the detection waiting time is saved.

Drawings

Fig. 1 is a schematic structural diagram of a flow meter according to an embodiment of the present invention;

in the figure:

1. a flow tube; 2. a protective cover; 21. an arc-shaped plate; 3. an impeller; 4. a counter; 5. an inductive switch; 6. cleaning the mouth cap; 7. a bolt; 8. and (5) clamping a hoop.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The flow meter will be described in detail with reference to fig. 1.

In the present embodiment, a flowmeter for measuring the flow rate of concrete or mortar is provided, which comprises a casing, an impeller 3 and a counter assembly, as shown in fig. 1. The casing comprises a flow tube 1 and a protective cover 2, the flow tube 1 is connected with a pump, the flow tube 1 is used for passing concrete or mortar, and the protective cover 2 is arranged outside the flow tube 1 and communicated with the flow tube 1; the impeller 3 is arranged in the cavity of the shell, the central shaft of the impeller 3 is positioned above the central shaft of the flow tube 1, the central shaft of the impeller 3 is vertical to the central shaft of the flow tube 1, and the impeller 3 is rotationally arranged on the protective cover 2; the counting assembly is used for recording the number of turns of the impeller 3.

The counting assembly is used for recording the number of turns of rotation of the impeller 3, the circumference of one turn of rotation of the impeller 3 is equal to the moving length of concrete, the flow volume of the concrete or mortar can be obtained by multiplying the cross sectional area of the flow tube 1 by the moving length of the concrete after the sectional area of the flow tube 1 is calculated, the flowmeter is directly connected with a pump, when the concrete or mortar is pumped, the flowmeter can accurately measure the volume of the concrete or mortar, the detection time is not occupied, and the detection waiting time is saved.

Optionally, the impeller 3 includes a rotating shaft and a plurality of blades circumferentially disposed on the rotating shaft, so that the impeller 3 integrally rotates when mortar or concrete is pushed.

Preferably, the counting assembly includes counter 4, inductive switch 5 and magnetic sheet, and counter 4 is connected with inductive switch 5 electricity, and magnetic sheet, counter 4 all set up in protection casing 2 outsidely with inductive switch 5, and the magnetic sheet sets up in impeller 3's pivot, and the magnetic sheet detects impeller 3 with the cooperation of inductive switch 5 and rotates, and counter 4 takes notes 3 pivoted turns of impeller. Preferably, inductive switch 5 is secured to flow tube 1 by a bracket. The inductive switch 5 does not sense the magnetic sheet once, and then sends the inductive structure to the counter 4, and the counter 4 counts and displays, so that the operator can timely close the pump as required.

The rotating shaft of the impeller 3 is connected with the protective cover 2 in a sealing and rotating way. Can prevent concrete or mortar from leaking, can also guarantee that impeller 3 rotates on protection casing 2.

The shell is provided with a cleaning port, and a cleaning port cap 6 is arranged on the cleaning port. This setting can wash the inside surplus concrete of impeller 3 after the flowmeter use finishes, causes the unable rotation of impeller 3 to use after preventing the concrete hardening, and in addition, this flowmeter also can clear up through this washing mouth at any time in the jam appears in the use.

Preferably, the washing port is provided at the top of the protection mask 2. This arrangement can facilitate manufacture and prevent concrete or mortar from flowing out of the cleanout opening.

Preferably, the shield 2 comprises a side plate and an arc plate 21, and two sides of the arc plate 21 are respectively provided with one side plate. The cleaning opening is arranged on the arc plate 21. This setting can provide installation accommodation space for impeller 3, satisfies impeller 3 and rotates the needs.

Further, in the present embodiment, the protecting cover 2 is connected to the flow tube 1 through the bolt 7 and the clip 8, two sides of the protecting cover 2 are fixedly connected to the flow tube 1 through the bolt 7, and two ends of the protecting cover 2 are connected to the flow tube 1 through the clip 8, so that two ends of the protecting cover 2 are attached to the curved surface of the flow tube 1. The joint of the protective cover 2 and the flow tube 1 is provided with a sealing gasket to prevent leakage. This setting is convenient for the equipment of flowmeter, especially to impeller 3's installation, can also in time renew after impeller 3 appears wearing and tearing. Of course, the shield 2 is welded to the flow tube 1 in other embodiments.

In this embodiment, it is preferable that the flow tube 2 has a length of 500mm, and the flow tube 2 is provided with a communication hole having a rectangular shape, which communicates with the chamber formed by the shroud 2 to facilitate connection of the impeller 3. The flowmeter is directly connected with the pump through a pipeline, and when the concrete is conveyed, the impeller 3 rotates under the thrust of the concrete to drive the outside counter 4 to count, so that the volume of the concrete is indirectly measured.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A flowmeter for measuring the flow rate of concrete or mortar, comprising:

the flow tube (1) is connected with a pump, and the protective cover (2) is arranged outside the flow tube (1) and communicated with the flow tube (1);

the impeller (3) is arranged in the cavity of the shell, and the impeller (3) is rotatably arranged on the protective cover (2);

a counting assembly for recording the number of revolutions of the impeller (3).

2. The flowmeter of claim 1, wherein the counting assembly comprises a counter (4), an induction switch (5) and a magnetic sheet, the counter (4) is electrically connected with the induction switch (5), the magnetic sheet, the counter (4) and the induction switch (5) are all arranged outside the protective cover (2), the magnetic sheet is arranged on a rotating shaft of the impeller (3), the magnetic sheet and the induction switch (5) are matched to detect the rotation of the impeller (3), and the counter (4) records the number of rotation turns of the impeller (3).

3. The flowmeter of claim 2, characterized in that the rotation axis of the impeller (3) is sealed and rotationally connected to the shield (2).

4. The flowmeter of claim 1, wherein said housing is provided with a purge port, said purge port being provided with a purge port cap (6).

5. The flowmeter of claim 4, characterized in that the purge port is provided at the top of the shield (2).

6. The flowmeter of claim 4, characterized in that the shield (2) comprises side plates and an arc plate (21), one side plate being arranged on each side of the arc plate (21).

7. The flowmeter of claim 6, wherein the purge port is provided on the arcuate plate (21).

8. The flowmeter of any of claims 1-7, wherein said shield (2) is welded to said flow tube (1).

9. Flowmeter according to any of claims 1-7, characterized in that the shield (2) is connected to the flow tube (1) by means of bolts (7) and clips (8), and that the connection between the shield (2) and the flow tube (1) is provided with a sealing gasket.