CN212300450U - Liquid flow indicator - Google Patents

Abstract

The utility model discloses a liquid flow indicator, including outer tube, spring fixing clip, spring and watch core, the outer tube is the hollow tube, and the surface at outer tube middle part is equipped with the transparent window, the watch core is arranged in the inside central authorities of outer tube, and each butt spring in both ends of watch core, each butt in outer end of two springs have the spring fixing clip, two the spring fixing clip is detachably the tip of installing both ends in the outer tube respectively, and liquid flow through the outer tube can promote the watch core to remove to the downstream direction and can observe through the window. The utility model discloses can make things convenient for observing the liquid flow and have certain digital representation meaning directly, reduce the influence that liquid transparency is low to the observation, and low in cost.

Description

Liquid flow indicator

Technical Field

The utility model relates to an instrument and meter field especially relates to liquid flow indicator in pipeline.

Background

The liquid flow indicator is a meter for indicating the flow of liquid in a pipeline, and is commonly used for observing the flow state of the liquid in the pipeline under the environment with low requirement on flow rate measurement.

The existing liquid flow indicator is an impeller type flow indicator, and is divided into two types, one type is a non-flow-rate measuring function, whether liquid in a pipeline flows or not is judged only by observing whether an impeller rotates or not, and the other type is a flow-rate measuring function, and a sensor collects impeller rotation speed signals to obtain the liquid flow rate. The former has the disadvantages that the liquid flow rate cannot be quantified, the liquid is not suitable for a high-pressure environment due to a large glass window, and the liquid is difficult to observe when the transparency is low; the latter has the disadvantages of high cost, high failure rate, and the need for electrical power supply.

It is therefore evident that the above-described conventional liquid flow indicators have disadvantages and drawbacks in structure, method, and use, and further improvements are desired. How to create a new liquid flow indicator belongs to one of the important research and development issues.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a liquid flow indicator makes it can make things convenient for observing liquid flow directly perceivedly and have certain digital representation meaning, reduces the influence that liquid transparency is low to the observation, and low in cost to overcome the not enough of current liquid flow indicator.

In order to solve the technical problem, the utility model provides a liquid flow indicator, including outer tube, spring fixing clip, spring and watch core, the outer tube is the hollow tube, is equipped with the transparent window at the surface at outer tube middle part, the inside central authorities of outer tube are arranged in to the watch core, and each butt in both ends of watch core is one the spring, each butt in outer end of two springs have the spring fixing clip, two the tip at both ends in the outer tube is installed to spring fixing clip detachably respectively, and liquid flows the outer tube and can promote the watch core to remove to the downstream direction and can observe through the window.

As an improvement of the utility model, the watch core is a hollow tube, a resistance plate vertical to the liquid flowing direction is arranged at the center inside the watch core, and the resistance plate is in a six-petal flower shape.

The surface of the watch core facing the window is provided with scale marks, the left side and the right side of the scale marks are distinguished by different colors, and the scale value of the scale marks is calibrated according to the flow rate of liquid.

The color on the left side of the scale mark is red, and the color on the right side of the scale mark is blue.

The window is round table-shaped, the radius of one side of the window close to the inside of the outer tube is larger, and the radius of one side of the window close to the outside of the outer tube is smaller.

The window is made of glass or a pressure-resistant transparent material.

And a marked line is drawn in the center of the window.

The outer pipe is a seamless steel pipe.

The two ends of the outer pipe are both provided with external threads, and the outer pipe is connected into the pipeline through threaded connection.

After adopting such design, the utility model discloses following advantage has at least:

1. the utility model discloses can observe the liquid flow directly perceivedly to have certain digital representation meaning, the window area is less and for the round platform shape, more does benefit to high pressure resistant.

2. The utility model discloses do not need outside electric energy input, simple structure more possesses the economic type.

3. The utility model discloses the transparency requirement to being surveyed the liquid is lower, has avoided being surveyed liquid transparency low influence observation result.

Drawings

The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

Fig. 1 is a schematic structural diagram of a liquid flow indicator provided by the present invention.

Fig. 2 is a schematic structural view of a liquid flow indicating watch core provided by the present invention.

Description of reference numerals: 1-external thread; 2-an outer tube; 3-a window; 4-spring fixing clip; 5-a spring; 6-watch core; 7-graduation line; 8-resistance plate.

Detailed Description

Referring to fig. 1, the present invention provides a liquid flow indicator, which comprises an outer tube 2, a spring fixing clip 4, a spring 5 and a watch core 6, wherein the outer tube 2 is a hollow tube, preferably, the outer tube 2 can be a seamless steel tube, and the pressure resistance is improved. The middle part of the outer tube 2 is provided with a transparent window 3, preferably, the window 3 is in a round table shape, the radius of one side close to the inner part of the outer tube 2 is larger, and the radius of one side close to the outer part of the outer tube 2 is smaller, so that the window 3 in the shape has higher pressure resistance. The window 3 can be made of glass or other transparent pressure-resistant materials. The internally mounted of outer tube 2 has a core 6, and a spring 5 is propped respectively at the both ends of core 6, and each butt of the outer end of two springs 5 has spring fixing clip 4, two spring fixing clip 4 detachably installs the tip at both ends in outer tube 2 respectively, and liquid flows through outer tube 2 and can promote core 6 to remove to the downstream direction and can observe through window 3.

Scale marks 7 are marked on one side of the outer surface of the watch core 6 facing the window 3, meanwhile, a marked line is drawn in the center of the window 3, the liquid flow rate value can be read by matching the marked line with the scale marks 7, and quantitative observation of the flow rate is realized. The scale mark 7 is divided into a left part and a right part, the left side and the right side are respectively distinguished by different colors, in the embodiment, the color on the left side of the scale mark is red, the color on the right side of the scale mark is blue, when the liquid pushes the watch core to move, the flowing direction of the liquid can be rapidly and visually identified according to a color scale, and meanwhile, the flowing speed of the liquid can be observed according to the scale value on the scale mark.

It should be noted that the numerical relationship between the scale value on the scale mark 7 and the liquid flow rate needs to be calibrated, and the current flow rate of the liquid can be read according to the scale value after calibration.

Referring to fig. 2, the watch core 6 is a hollow tube, the resistance plate 8 perpendicular to the liquid flowing direction is arranged in the center inside the watch core 6, the resistance plate 8 is in a six-petal flower shape, when liquid flows through the inside of the watch core 6, thrust is generated on the resistance plate 8, the resistance plate 8 is pushed to drive the watch core 6 to move downstream, the movement of the watch core 6 compresses the spring 5 at one end of the downstream, when the elastic force of the spring 5 is balanced with the fluid thrust, the watch core 6 stops moving, the current scale and color scale can be read through the window 3, the scale corresponds to the current flow rate, and the color scale corresponds to the current flowing direction. When the liquid in the pipeline stops flowing, the watch core 6 returns to the original position under the action of the elastic force of the spring 5, the marked line on the window 3 is aligned with the 0 scale value on the scale mark 7, and the color scale is red and blue, which respectively account for half.

Preferably, in order to prevent the movement 6 from deflecting during use and affecting the observation, the spring 5 should be tightly installed with the movement 6 and the spring fixing clip 4, and if necessary, both sides of the spring 5 and the contact end of the spring fixing clip 4 and the spring 5, and the contact end of the movement 6 and the spring 5 can be designed to be square.

Preferably, the difference between the inner diameter of the outer tube 2 and the outer diameter of the watch core 6 is as small as possible while ensuring that the watch core 6 is free to move, in order to improve the measurement of less transparent liquids.

It should be noted that, according to the pressure grade of different pipelines, the springs 5 with different elastic coefficients should be selected. Simultaneously, if the fluid has corrosivity in the pipeline, the utility model discloses all parts should choose corrosion-resistant material for use or carry out corrosion-resistant processing such as electroplating, coating.

In addition, all be equipped with external screw thread 1 at the both ends of outer tube 2, can install the interface position of reserving in the pipeline with outer tube 2 through external screw thread 1, the installation direction of outer tube 2 should the horizontal installation, and the mounted position of outer tube 2 should select in the straight department of pipeline, all should reserve the straight tube of sufficient length around the mounted position in order to avoid the pipeline slope or buckle the influence to the velocity of flow observation result.

The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.

Claims (9)

1. The utility model provides a liquid flow indicator, its characterized in that includes outer tube, spring fixing clip, spring and table core, the outer tube is the hollow tube, and the surface at outer tube middle part is equipped with transparent window, the inside central authorities of outer tube are arranged in to the table core, and each butt in both ends of table core one the spring, each butt in outer end of two springs have the spring fixing clip, two the tip at the intraductal both ends of spring fixing clip detachably installation respectively, liquid flow through the outer tube can promote the table core to remove to the downstream direction and can observe through the window.

2. The liquid flow indicator of claim 1, wherein the wick is a hollow tube, and a resistance plate perpendicular to the direction of liquid flow is provided at the midpoint of the inside of the wick, the resistance plate having a six-petal flower shape.

3. The liquid flow indicator of claim 1, wherein the outer surface of the watch core facing the viewing window is provided with scale marks, the left and right sides of the scale marks are distinguished by different colors, and the scale values of the scale marks are calibrated according to the liquid flow rate.

4. The liquid flow indicator of claim 3, wherein the color to the left of the tick mark is red and the color to the right of the tick mark is blue.

5. The liquid flow indicator of claim 1, wherein the window is frustoconical in shape, the window having a larger radius on a side proximate an interior of the outer tube and a smaller radius on a side proximate an exterior of the outer tube.

6. The liquid flow indicator of claim 1, wherein the window is made of glass or a pressure-resistant transparent material.

7. The liquid flow indicator of claim 1, wherein a reticle is drawn in the center of the viewing window.

8. The liquid flow indicator of claim 1, wherein the outer tube is a seamless steel tube.

9. The liquid flow indicator of claim 1, wherein the outer tube is externally threaded at both ends and is threaded into the pipeline.

Images