Level visible hopper

Abstract

This utility model discloses a liquid level visual funnel, including a funnel body, a transparent sleeve fixedly nested in the inner wall of the neck of the funnel body, a hollow rod slidably sleeved inside the sleeve, the lower end of the rod extending below the funnel outlet, a float ball connected to the lower end of the rod that does not obstruct the flow channel, an indicator block fixed to the upper end, and an axially extending scale provided on the outer wall of the upper end of the sleeve, with the indicator block facing the scale's graduation surface. In this utility model, the float ball rises due to buoyancy, thereby moving the rod ball. By observing the distance the rod ball moves relative to the scale, the amount of liquid filled is determined, allowing the liquid level data to be converted into a scale reading in real time. This enables autonomous calibration throughout the filling process, improving operational efficiency. The integrated design of the through-type transparent sleeve and axial scale ensures that liquid level monitoring covers the entire container, completely eliminating blind spots. The modular snap-fit ​​scale and seal-free structure simplify the assembly process and reduce manufacturing costs.

Description

Technical Field

[0001] This utility model belongs to the field of laboratory equipment, specifically, it relates to a liquid level visualization funnel. Background Technology

[0002] When filling narrow-mouthed containers (such as reagent bottles and graduated cylinders) with liquid using traditional funnels, the operator cannot directly observe the liquid level inside the container and must repeatedly lift the funnel to check the liquid level, which can easily lead to liquid spillage.

[0003] Existing technologies have the following problems: due to the limitation of container diameter, the observation window cannot cover the entire liquid surface, resulting in blind spots; observation on an inclined plane can lead to visual errors, especially in dark liquids, resulting in reading errors; transparent observation windows require sealing, which increases the complexity of the structure and manufacturing costs; and the liquid level calibration function cannot be realized, requiring operators to rely on external scales for estimation, making the function relatively simple. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, the purpose of this utility model is to provide a liquid level visual funnel, comprising a funnel body, a transparent sleeve fixedly nested in the inner wall of the neck of the funnel body, a hollow sleeve rod slidably sleeved inside the sleeve, the lower end of the sleeve rod extending below the funnel outlet, a float ball that does not obstruct the flow channel connected to the lower end of the sleeve rod, an indicator block fixed at the upper end, and an axially extending scale provided on the outer wall of the upper end of the sleeve, with the indicator block facing the scale surface.

[0005] As a preferred embodiment, the sleeve is fixed to the inner wall of the funnel neck by an interference fit, and an annular buckle is provided on its outer side, which is engaged with the upper edge of the funnel neck.

[0006] As a preferred embodiment, the inner wall of the sleeve is provided with at least one axial guide groove, and the side wall of the sleeve rod is provided with a protruding key, which forms a clearance fit with the guide groove.

[0007] As a preferred embodiment, the scale is a transparent plastic sheet with a snap-fit ​​strip on its back, which is slidably connected to the dovetail groove on the outer wall of the sleeve.

[0008] As a preferred embodiment, the float is a hemispherical structure with a horizontal plane on its upper surface and a spherical surface on its lower surface.

[0009] As a preferred embodiment, the scale surface is coated with a hydrophobic coating.

[0010] As a preferred embodiment, the bottom of the guide groove is provided with a rubber buffer pad.

[0011] As a preferred embodiment, the indicator block is a triangular pointer with its tip pointing towards the scale line.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model features a float that rises due to buoyancy, causing the sleeve to move. By observing the distance the sleeve moves relative to the scale, the amount of liquid being filled is determined, allowing the liquid level data to be converted into scale readings in real time. This enables autonomous calibration throughout the filling process, improving operational efficiency. The integrated design of the through-type transparent sleeve and axial scale ensures that liquid level monitoring covers the entire container, completely eliminating blind spots. The modular snap-fit ​​scale and seal-free structure simplify the assembly process and reduce manufacturing costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the specific structure of this utility model;

[0015] Figure 2 This is a partially enlarged structural diagram of point A in this utility model;

[0016] Figure 3 This is a partially enlarged structural diagram of section B of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments.

[0018] A liquid level visualization funnel includes a funnel body 1, a transparent sleeve 2 is fixedly nested in the inner wall of the neck of the funnel body 1, a hollow sleeve rod 4 is slidably sleeved in the sleeve 2, the lower end of the sleeve rod 4 extends to below the funnel outlet, a float ball 5 that does not obstruct the flow channel is connected to the lower end of the sleeve rod 4, an indicator block 7 is fixed at the upper end, and an axially extending scale 3 is provided on the outer wall of the upper end of the sleeve 2, with the indicator block 7 facing the scale surface of the scale 3.

[0019] A sleeve 2 is embedded in the neck of the funnel body 1, with the upper end of the sleeve 2 extending beyond the upper surface of the funnel body 1, allowing the scale 3 to be exposed outside the funnel body 1. The sleeve rod 4 passes through the sleeve 2, with its bottom connected to a float 5 that extends into the container, and the top indicator block 7 pointing to the scale 3. When filling the container, the float 5 is pushed upward by buoyancy, causing the indicator block 7 to slide along the scale 3, directly displaying the liquid level in the container. This effectively eliminates blind spots, displays the liquid level in real time, and reduces the number of times the funnel is lifted, preventing spillage.

[0020] In a preferred embodiment, the sleeve 2 is fixed to the inner wall of the funnel neck by an interference fit, and an annular buckle 21 is provided on its outer side, which is engaged with the upper edge of the funnel neck.

[0021] The outer diameter of the sleeve 2 is slightly larger than the inner diameter of the funnel neck, and it is fixed by interference fit; the top ring buckle 21 hooks onto the upper edge of the neck; during installation, press the sleeve until the buckle 21 is locked; during disassembly, pinch the buckle protrusion to remove it; the double fixation prevents the sleeve 2 from loosening during liquid filling, and the buckle 21 is easy to maintain and clean.

[0022] In a preferred embodiment, the inner wall of the sleeve 2 is provided with at least one axial guide groove 22, and the side wall of the sleeve rod 4 is provided with a protruding key 41, which forms a clearance fit with the guide groove 22.

[0023] Two symmetrical guide grooves 22 are opened on the inner wall of the sleeve 2, and a protruding key 41 is provided on the side wall of the sleeve rod 4. The gap between the protruding key 41 and the groove is ≤0.1mm. When the float rises, the protruding key 41 slides along the guide groove 22, which restricts the sleeve rod 4 to only make axial movement, which can eliminate the wobble of the sleeve rod 4, ensure the indication accuracy, and reduce frictional resistance with the gap fit. At the same time, the cooperation between the guide groove 22 and the protruding key 41 can also prevent the sleeve rod 4 from falling off.

[0024] In a preferred embodiment, the scale 3 is a transparent plastic sheet with a snap-fit ​​strip 31 on its back, which is slidably connected to the dovetail groove 23 on the outer wall of the sleeve 2.

[0025] During operation, push the scale 3 along the axial direction of the sleeve 2 to lock it in place. When replacing, simply pinch the scale 3 and lift it up.

[0026] In a preferred embodiment, the float 5 has a hemispherical structure with a horizontal plane on its upper surface and a spherical surface on its lower surface.

[0027] With the flat surface facing upwards and the spherical surface facing downwards, the resistance to liquid disturbance can be reduced. The flat surface can improve buoyancy stability, while the spherical surface can prevent sinking and getting stuck.

[0028] As a preferred embodiment, the surface of scale 3 is coated with a hydrophobic coating.

[0029] The hydrophobic coating can be a polytetrafluoroethylene hydrophobic coating. When liquid splashes onto scale 3, it will form water droplets and slide off without affecting the reading. It can prevent droplets from adhering and interfering with the line of sight, and reduce the frequency of cleaning.

[0030] In a preferred embodiment, a rubber buffer pad 24 is provided at the bottom of the guide groove 22.

[0031] When the sleeve rod 4 falls, the protruding key 41 will impact the buffer pad to absorb kinetic energy, which can effectively reduce impact noise and extend the life of the guide structure.

[0032] In a preferred embodiment, the indicator block 7 is a triangular pointer with its tip pointing towards the scale line 3. When observing, the line of sight can be kept horizontal with the tip of the pointer, and the triangular design can effectively reduce visual obstruction.

[0033] The complete operating procedure for this device is as follows:

[0034] 1. Initial preparation

[0035] Insert the scale 3 into the dovetail groove 23 of the sleeve 2, insert the funnel body 1 into the container, and make the float 5 contact the bottom of the container.

[0036] 2. Filling stage

[0037] The liquid is poured into the container through the sleeve rod 4 inside the funnel body 1. The liquid level rises and pushes the float 5. The float moves the sleeve rod 4 upward, and the indicator block 7 climbs along the scale 3. When the indicator block 7 reaches the target scale, the liquid filling stops.

[0038] 3.Drainage monitoring

[0039] When the container valve is opened to drain the liquid, the float 5 descends with the liquid level, and the indicator block 7 moves down synchronously to display the remaining liquid volume.

[0040] 4. Cleaning and maintenance

[0041] Lift the funnel body 1. The guide groove 22 and the protruding key 41 can restrict the sleeve rod 4 from coming out. Press the buckle 21 to remove the sleeve 2 assembly for rinsing. Pinch the top of the scale 3 and slide it upward to remove the scale 3.

[0042] 5. Change the measuring range

[0043] Remove the original scale 3, replace it with the new range scale 3, and check the smoothness of the fit between the key 41 and the guide groove 22.

[0044] The contents not described in detail in this specification are existing technologies known to those skilled in the art, and their specifications and models can be selected according to actual conditions.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical embodiments described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquid level visualization funnel, comprising a funnel body (1), characterized in that, A transparent sleeve (2) is fixedly nested in the inner wall of the neck of the funnel body (1). A hollow sleeve rod (4) is slidably sleeved in the sleeve (2). The lower end of the sleeve rod (4) extends to the bottom of the funnel outlet. A float (5) that does not obstruct the flow channel is connected to the lower end of the sleeve rod (4). An indicator block (7) is fixed at the upper end. An axially extending scale (3) is provided on the outer wall of the upper end of the sleeve (2). The indicator block (7) faces the scale surface of the scale (3).

2. The liquid level visual funnel according to claim 1, characterized in that, The sleeve (2) is fixed to the inner wall of the funnel neck by interference fit, and an annular buckle (21) is provided on its outer side. The buckle (21) is engaged with the upper edge of the funnel neck.

3. A liquid level visualization funnel according to claim 1, characterized in that, The inner wall of the sleeve (2) is provided with at least one axial guide groove (22), and the side wall of the sleeve rod (4) is provided with a protruding key (41), which forms a clearance fit with the guide groove (22).

4. A liquid level visualization funnel according to claim 1, characterized in that, The scale (3) is a transparent plastic sheet with a snap-fit ​​strip (31) on its back. The snap-fit ​​strip (31) is slidably connected to the dovetail groove (23) on the outer wall of the sleeve (2).

5. A liquid level visualization funnel according to claim 1, characterized in that, The float (5) is a hemispherical structure with a horizontal plane on its upper surface and a spherical surface on its lower surface.

6. A liquid level visualization funnel according to claim 4, characterized in that, The scale (3) is coated with a hydrophobic coating.

7. A liquid level visualization funnel according to claim 3, characterized in that, The bottom of the guide groove (22) is provided with a rubber buffer pad (24).

8. A liquid level visualization funnel according to claim 1, characterized in that, The indicator block (7) is a triangular pointer with its tip pointing toward the scale line of the ruler (3).

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