CN215952705U - Glass tube rotameter scale measuring equipment - Google Patents

Abstract

The utility model discloses a glass tube rotameter scale measuring device, comprising: a calibration stand for supporting the measurement device; the fluid input device is used for clamping the rotameter, enabling the rotameter to be in a vertical state and inputting fluid into the rotameter; the grating ruler is positioned on one side of the flowmeter clamping device and is arranged in parallel with the rotor flowmeter; the extension pointer is perpendicular to the grating ruler, one end of the extension pointer is connected to a reading head of the grating ruler, and the other end of the extension pointer points to the rotor flow meter. The utility model can realize accurate and quick scale marking on the glass tube, and avoids the defects of low efficiency, high error rate and low precision of distance value reading caused by manual scale position measurement.

Description

Glass tube rotameter scale measuring equipment

Technical Field

The utility model relates to the technical field of flowmeters, in particular to a glass tube rotameter scale measuring device.

Background

The glass tube rotameter is mainly used in various fields of chemical industry, petroleum, light industry, medicine, chemical fertilizer, chemical fiber, food, dye, environmental protection, scientific research and the like, and is used for measuring the flow of single-phase non-pulsating (liquid or gas) fluid.

In the production process of the glass tube rotameter, after the glass tube rotameter is checked, the positions of the scales are marked at the positions corresponding to the flow points, the scales are measured manually by a ruler, and the scales are marked on the glass tube by a screen printing technology.

Obviously, the scale position of the glass tube rotameter is measured manually, and the glass tube rotameter has the defects of low efficiency, high error rate and low accuracy. Therefore, a glass tube rotameter scale measuring device with high efficiency and high precision is needed to overcome the defects.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a scale measuring device of a glass tube rotameter, which solves the problems in the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: a glass tube rotameter scale measurement apparatus comprising: a calibration stand for supporting the measurement device; the fluid input device is used for clamping the rotameter, enabling the rotameter to be in a vertical state and inputting fluid into the rotameter; the grating ruler is positioned on one side of the fluid input device and is arranged in parallel with the rotor flow meter; the extension pointer is perpendicular to the grating ruler, one end of the extension pointer is connected to a reading head of the grating ruler, and the other end of the extension pointer points to the rotor flow meter.

Preferably, the fluid input device comprises: a tank for holding a fluid; one end of the fluid input pipeline is communicated with the box body, and the other end of the fluid input pipeline is communicated with the input end of the rotameter; one end of the fluid output pipeline is communicated with the box body, and the other end of the fluid output pipeline is communicated with the output end of the rotameter; a pump body located on the fluid input conduit.

Preferably, the fluid input pipeline is also provided with a valve and a standard meter.

Preferably, the fluid input pipeline is fixed on the calibration table, the fluid output pipeline is fixed on the calibration table, one end of the fluid input pipeline close to the rotameter is in a vertical state, and one end of the fluid output pipeline close to the rotameter is in a vertical state.

Preferably, one end of the fluid input pipeline close to the rotameter is provided with a first outer edge protrusion, the first outer edge protrusion is provided with a first sealing ring between the rotameter, the first outer edge protrusion is provided with a first screw at the position of the first sealing ring, one end of the fluid output pipeline close to the rotameter is provided with a second outer edge protrusion, the second outer edge protrusion is provided with a second sealing ring between the rotameter, and the second outer edge protrusion is provided with a second screw at the position of the second sealing ring.

Preferably, the lower end of the grating ruler extends into a supporting block, and the supporting block is connected with the calibration table through a third screw.

Compared with the prior art, the utility model has the following beneficial effects: according to the scale measuring equipment for the glass tube rotameter, disclosed by the utility model, when the glass tube rotameter is calibrated, the grating ruler is matched with the reading head to record the zero point and the distance between the scale and the zero point position, and the distance value is transmitted through digital communication so as to be read by automatic printing equipment, so that the scale is accurately and quickly marked on the glass tube, and the defects of low efficiency, high error rate and low precision in distance value reading caused by manual measurement are avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic diagram of a scale measuring device of a glass tube rotameter according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a read head according to an embodiment of the present invention;

FIG. 3 is a detail view of FIG. 1 taken at A in accordance with the present invention;

FIG. 4 is a detail view of the utility model at B of FIG. 1;

in the figure:

a calibration stand 1;

the device comprises a fluid input device 2, a box body 21, a fluid input pipeline 22, a first outer edge bulge 221, a first sealing ring 222, a first screw 223, a fluid output pipeline 23, a second outer edge bulge 231, a second sealing ring 232, a second screw 233, a pump body 24, a valve 25 and a standard meter 26;

a rotameter 3;

the grating ruler 4, the supporting block 41 and the third screw 42;

extending the pointer 5;

a reading head 6, a zero point key 61, a recording key 62 and an output key 63.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1, in order to avoid the disadvantages of low efficiency and high error rate in manually measuring and reading a distance value, the embodiment provides an optimal scheme of a scale measuring device for a glass tube rotameter, which specifically includes a calibration stand 1, where the calibration stand 1 is a plate-shaped structure and is used to support the measuring device;

further, as shown in fig. 1, the measuring device further comprises a fluid input device 2, wherein the fluid input device 2 is used for clamping the rotameter 3, enabling the rotameter 3 to be in a vertical state and inputting fluid into the rotameter 3;

specifically, as shown in fig. 1, the fluid input device 2 includes a box 21, a fluid input pipeline 22, a fluid output pipeline 23, and a pump body 24, wherein the box 21 is located at the lower end of the calibration table 1 and is used for containing liquid, one end of the fluid input pipeline 22 is communicated with the box 21, the other end is communicated with the input end of the rotameter 3, one end of the fluid output pipeline 23 is communicated with the box 21, the other end is communicated with the output end of the rotameter 3, the pump body 24 is located on the fluid input pipeline 22, the pump body 24 is preferably a water pump, the liquid is powered by the pump body 24 and is pumped into the fluid input pipeline 22 from the water tank and is input into the rotameter 3, so that the float in the rotameter 3 makes vertical movement, and the liquid flows back into the box 21 through the fluid output pipeline 23;

further, as shown in fig. 1, a valve 25 and a standard meter 26 are further disposed on the fluid input pipe 22, the valve 25 is used for adjusting and calibrating the flow rate of the liquid introduced into the rotameter 3, and the standard meter 26 is used for measuring the real-time standard flow rate flowing through the pipeline;

further, as shown in fig. 1, the fluid input pipeline 22 is fixed on the calibration table 1 by bolts, the fluid output pipeline 23 is fixed on the calibration table 1 by bolts, one end of the fluid input pipeline 22 close to the rotameter 3 is in a vertical state, one end of the fluid output pipeline 23 close to the rotameter 3 is in a vertical state, and the fluid input pipeline 22 and the fluid output pipeline 23 are both hard pipes made of plastics and solid metals, so that the rotameter 3 is placed between the fluid input pipeline 22 and the fluid output pipeline 23, and the rotameter 3 can be kept in a vertical state to ensure that the measurement scale is accurate;

further, as shown in fig. 3 to 4, in order to facilitate installation and replacement of the rotameter 3, the upper and lower ends of the casing of the rotameter 3 are provided with threaded holes, by using the structural feature, a first outer edge protrusion 221 is disposed at one end of the fluid input pipe 22 close to the rotameter 3, the first outer edge protrusion 221 is preferably integrally formed with the fluid input pipe 22, a first sealing ring 222 is disposed between the first outer edge protrusion 221 and the rotameter 3, the first sealing ring 222 is preferably a rubber ring, a first screw 223 is disposed at the position of the first outer edge protrusion 221 and the first sealing ring 222, and the first screw 223 sequentially connects the first outer edge protrusion 221, the first sealing ring 222 and the lower end of the rotameter 3, so that the fluid input pipe 22 and the rotameter 3 are vertically connected in a sealed manner; meanwhile, a second outer edge protrusion 231 is arranged at one end, close to the rotameter 3, of the fluid output pipeline 23, the second outer edge protrusion 231 is preferably integrally formed with the fluid output pipeline 23, a second sealing ring 232 is arranged between the second outer edge protrusion 231 and the rotameter 3, the second sealing ring 232 is preferably a rubber ring, a second screw 233 is arranged at the position of the second outer edge protrusion 231 and the second sealing ring 232, and the second screw 233 sequentially connects the second outer edge protrusion 231, the second sealing ring 232 and the upper end of the rotameter 3, so that the fluid output pipeline 23 is vertically connected with the rotameter 3 in a sealing manner.

Further, as shown in fig. 1, the measuring apparatus further includes a grating ruler 4, the grating ruler 4 is located on one side of the fluid input device 2 and is parallel to the rotameter 3, the lower end of the grating ruler 4 extends into a supporting block 41, and the supporting block 41 is connected with the calibration table 1 through a third screw 42;

further, as shown in fig. 1, the measuring device further includes an extension pointer 5, the extension pointer 5 is perpendicular to the grating scale 4, one end of the extension pointer 5 is connected to a reading head 6 of the grating scale 4, and the other end of the extension pointer 5 points to the rotameter 3 and is used for tracking the position of the float;

further, as shown in fig. 2, the reading head 6 is provided with three keys, namely a zero point key 61, a recording key 62 and an output key 63; when no flow exists in the rotameter 3, the floater is in a zero position, the reading head 6 is manually moved until the extension pointer 5 points to the floater position, the zero button 61 is pressed, and the reading head 6 starts to measure by taking the position as a zero point; in the calibration process, when the flow in the rotameter 3 reaches a fixed flow value, the reading head 6 is manually moved again until the extension pointer 5 points to the position of the floater, the recording key 62 is pressed, and the reading head 6 records the distance between the current position and the zero position; changing the next calibration point, pressing the recording key 62, recording the distance between the current position and the zero point by the reading head 6, and so on; after all calibration points are calibrated, the output key 63 is pressed, the distances between the positions of all the calibration points and the zero point are output to automatic printing equipment in an RS485 digital interface communication mode through a signal line, and the automatic printing equipment prints scales on the glass tube by taking the positions of the calibration points as a standard.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a glass pipe rotameter scale measuring equipment which characterized in that includes:

a calibration stand for supporting the measurement device;

the fluid input device is used for clamping the rotameter, enabling the rotameter to be in a vertical state and inputting fluid into the rotameter;

the grating ruler is positioned on one side of the fluid input device and is arranged in parallel with the rotor flow meter;

the extension pointer is perpendicular to the grating ruler, one end of the extension pointer is connected to a reading head of the grating ruler, and the other end of the extension pointer points to the rotor flow meter.

2. A glass tube rotameter scale measuring device according to claim 1, characterised in that: the fluid input device comprises:

a tank for holding a fluid;

one end of the fluid input pipeline is communicated with the box body, and the other end of the fluid input pipeline is communicated with the input end of the rotameter;

one end of the fluid output pipeline is communicated with the box body, and the other end of the fluid output pipeline is communicated with the output end of the rotameter;

a pump body located on the fluid input conduit.

3. A glass tube rotameter scale measuring device according to claim 2, characterised in that: and the fluid input pipeline is also provided with a valve and a standard meter.

4. A glass tube rotameter scale measuring device according to claim 2, characterised in that: the fluid input pipeline is fixed on the calibration table, the fluid output pipeline is fixed on the calibration table, one end, close to the rotor flow meter, of the fluid input pipeline is in a vertical state, and one end, close to the rotor flow meter, of the fluid output pipeline is in a vertical state.

5. The glass tube rotameter scale measuring device of claim 4, wherein: the one end that fluid input pipeline is close to the rotameter sets up first outer fringe protruding, first outer fringe protruding with be provided with first sealing washer between the rotameter, first outer fringe protruding with first sealing washer department is provided with first screw, the one end that fluid output pipeline is close to the rotameter sets up second outer fringe protruding, the second outer fringe protruding with be provided with the second sealing washer between the rotameter, the second outer fringe protruding with second sealing washer department is provided with the second screw.

6. The glass tube rotameter scale measuring device according to any one of claims 1 to 5, wherein: the lower end of the grating ruler extends into the supporting block, and the supporting block is connected with the checking table through a third screw.

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