Anti-blocking dropping funnel

Abstract

The utility model relates to the technical field of dropping funnels, in particular to an anti-blocking dropping funnel. According to the technical scheme, the device comprises a dropping pipette and a liquid storage funnel, a liquid outlet pipe is fixedly connected to the lower surface of the liquid storage funnel, a funnel pipe is fixedly connected to the tail end of the liquid outlet pipe, the dropping pipette is fixedly connected to the lower surface of the funnel pipe, a fixing pipe is fixedly connected to the upper surface of the liquid storage funnel, and a threaded hole is formed in the upper surface of the fixing pipe. And a lifting screw rod is movably inserted into the threaded hole, a fixed connecting rod is fixedly connected to the end, located in the fixed pipe, of the lifting screw rod, a conical block is fixedly connected to the tail end of the lifting screw rod, and a conical plug is fixedly installed on the lower surface of the conical block and located in the funnel pipe. In the using process of the dropping funnel, the dropping funnel can avoid blocking of dropping liquid, and ensures normal proceeding of dropping liquid reaction.

Description

Technical Field

[0001] The utility model relates to the technical field of dropping funnels, in particular to an anti-clogging dropping funnel. Background Art

[0002] A dropping funnel is a funnel that is easy to add liquids to without gas leakage when adding liquids. The reaction rate can be controlled by controlling the dripping rate. It is usually installed on a reaction device for dripping liquids. The design of the dropping funnel prevents gas leakage when adding liquids and can accurately control the dripping rate, thereby effectively controlling the rate of chemical reactions. This funnel is particularly useful in scientific experiments, especially in applications that require precise control of reaction conditions.

[0003] During the use of the current dropping funnel, the dripping rate needs to be controlled by a stopcock. However, the liquid is obstructed during the flow at the stopcock, which is prone to precipitation and adhesion, affecting the reaction. Therefore, we propose an anti-clogging dropping funnel. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-clogging dropping funnel, which has the advantage of avoiding the occurrence of dripping blockage during the use of the dropping funnel and ensuring the normal progress of the dripping reaction. It solves the problem that the current dropping funnel needs to control the dripping rate through a stopcock during use, but the liquid is hindered from flowing at the stopcock, which easily causes precipitation adhesion and blockage, thereby affecting the reaction.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blocking-proof dropping funnel, comprising a dropping tube and a liquid storage funnel, the lower surface of the liquid storage funnel is fixedly connected to a liquid outlet tube, the end of the liquid outlet tube is fixedly connected to a funnel tube, the lower surface of the funnel tube is fixedly connected to a dropping tube, the upper surface of the liquid storage funnel is fixedly connected to a fixed tube, a threaded hole is provided on the upper surface of the fixed tube, a lifting screw is movably inserted inside the threaded hole, one end of the lifting screw located inside the fixed tube is fixedly connected to a fixed connecting rod, the end of the lifting screw is fixedly connected to a conical block, a conical plug is fixedly installed on the lower surface of the conical block, and the conical plug is located inside the funnel tube.

[0006] Preferably, a liquid injection tube is fixedly connected to one side of the upper surface of the liquid storage funnel, and the liquid is injected into the liquid storage funnel through the liquid injection tube.

[0007] Preferably, the outer surface of the lifting screw is provided with scale lines, and by reading the scale lines, the size of the flow gap between the outer surface of the conical plug and the inner wall of the funnel tube can be obtained, thereby obtaining the dripping rate.

[0008] Preferably, a rubber ring is fixedly installed on the bottom of the inner wall of the fixed tube, and the fixed connecting rod passes through the rubber ring. When the fixed connecting rod enters the interior of the fixed tube, the rubber ring scrapes off the liquid adhering to the fixed connecting rod to prevent the liquid from entering the interior of the fixed tube.

[0009] Preferably, one end of the lifting screw located outside the fixed tube is fixedly connected to a knob, and the lifting screw is rotated by the knob.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. The utility model achieves the effect of avoiding the occurrence of dripping blockage during the use of the dropping funnel and ensuring the normal progress of the dripping reaction by arranging a liquid storage funnel, a liquid outlet pipe, a funnel tube, a dripping tube, a fixed tube, a threaded hole, a lifting screw, a fixed connecting rod, a conical block and a conical plug. The liquid inside the liquid storage funnel drips out along the liquid outlet pipe, the funnel tube and the dripping tube in sequence. After the lifting screw is rotated, the conical plug is driven to rise and fall by the fixed connecting rod, and the size of the flow gap between the outer surface of the conical plug and the inner wall of the funnel tube can be controlled to control the dripping rate. When the liquid flows through the flow gap between the outer surface of the conical plug and the inner wall of the funnel tube, the liquid is not hindered, and the flowing liquid flushes the flow gap and the outer surface of the conical block, so there will be no precipitation adhesion blockage, and no dripping blockage.

[0012] 2. The utility model achieves the effect of facilitating the control of the dripping rate by setting the scale lines. By reading the scale lines, the size of the flow gap between the outer surface of the conical plug and the inner wall of the funnel tube can be obtained, thereby obtaining the dripping rate.

[0013] 3. The present invention provides a rubber ring, so when the fixed connecting rod enters the interior of the fixed tube, the rubber ring scrapes off the liquid adhering to the fixed connecting rod to prevent the liquid from entering the interior of the fixed tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 This is a partial three-dimensional schematic diagram of the lifting screw of the utility model;

[0016] Figure 3 It is a schematic diagram of the main cross-sectional structure of the utility model.

[0017] Figure numerals: 1. Dropper; 2. Funnel tube; 3. Liquid outlet tube; 4. Liquid storage funnel; 5. Threaded hole; 6. Lifting screw; 7. Knob; 8. Liquid injection tube; 9. Fixed tube; 10. Conical plug; 11. Conical block; 12. Fixed connecting rod; 13. Scale line; 14. Rubber ring. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] like Figure 1-Figure 3 As shown, the utility model proposes an anti-clogging dropping funnel, including a dropping tube 1 and a liquid storage funnel 4. One side of the upper surface of the liquid storage funnel 4 is fixedly connected with a liquid injection tube 8, and the liquid is injected into the liquid storage funnel 4 through the liquid injection tube 8. The lower surface of the liquid storage funnel 4 is fixedly connected with a liquid outlet tube 3, and the end of the liquid outlet tube 3 is fixedly connected with a funnel tube 2. The lower surface of the funnel tube 2 is fixedly connected with a dropping tube 1, and the liquid inside the liquid storage funnel 4 drips out from the dropping tube 1. The upper surface of the liquid storage funnel 4 is fixedly connected with a fixed tube 9. The upper surface of the fixed tube 9 is provided with a threaded hole 5. The threaded hole 5 is movably inserted with a lifting screw 6. One end of the screw 6 located inside the fixed tube 9 is fixedly connected to a fixed connecting rod 12, and one end of the lifting screw 6 located outside the fixed tube 9 is fixedly connected to a knob 7. The lifting screw 6 is rotated by rotating the knob 7, and the end of the lifting screw 6 is fixedly connected to a conical block 11. A conical plug 10 is fixedly installed on the lower surface of the conical block 11, and the conical plug 10 is located inside the funnel tube 2. The outer surface of the conical plug 10 and the inner wall of the funnel tube 2 are fitted together. The liquid inside the liquid outlet tube 3 flows into the drip tube 1 from the flow gap between the outer surface of the conical plug 10 and the inner wall of the funnel tube 2, and then drips out from the drip tube 1.

[0021] When the present invention is in use, the liquid inside the liquid storage funnel 4 drips out along the liquid outlet pipe 3, the funnel tube 2 and the dripping tube 1 in sequence. After the lifting screw 6 is rotated, the conical plug 10 is driven to rise and fall by the fixed connecting rod 12, and the size of the flow gap between the outer surface of the conical plug 10 and the inner wall of the funnel tube 2 can be controlled to control the dripping rate. When the liquid flows through the flow gap, the liquid is not hindered, and the flowing liquid flushes the flow gap and the outer surface of the conical block 11, so there will be no precipitation adhesion blockage and no dripping blockage, thereby ensuring the normal progress of the dripping reaction. When the reaction is completed, the lifting screw 6 is rotated so that the outer surface of the conical plug 10 and the inner wall of the funnel tube 2 are fitted together, thereby blocking the dripping of the liquid.

[0022] Example 2

[0023] like Figure 1-Figure 3As shown, the utility model proposes an anti-clogging dropping funnel. Compared with the first embodiment, this embodiment also includes a scale line 13 provided on the outer surface of the lifting screw 6, a rubber ring 14 is fixedly installed on the bottom of the inner wall of the fixed tube 9, and the fixed connecting rod 12 passes through the rubber ring 14. When the fixed connecting rod 12 enters the interior of the fixed tube 9, the liquid adhering to the fixed connecting rod 12 is scraped off by the rubber ring 14 to prevent the liquid from entering the interior of the fixed tube 9.

[0024] In this embodiment, by reading the scale line 13, the size of the flow gap between the outer surface of the conical plug 10 and the inner wall of the funnel tube 2 can be obtained, thereby obtaining the dripping rate.

[0025] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A clogging-resistant dropping funnel, comprising a dropping tube (1) and a liquid storage funnel (4), characterized in that: The lower surface of the liquid storage funnel (4) is fixedly connected to a liquid outlet pipe (3), the end of the liquid outlet pipe (3) is fixedly connected to a funnel pipe (2), the lower surface of the funnel pipe (2) is fixedly connected to a drip pipe (1), the upper surface of the liquid storage funnel (4) is fixedly connected to a fixed pipe (9), the upper surface of the fixed pipe (9) is provided with a threaded hole (5), a lifting screw (6) is movably inserted inside the threaded hole (5), one end of the lifting screw (6) located inside the fixed pipe (9) is fixedly connected to a fixed connecting rod (12), the end of the lifting screw (6) is fixedly connected to a conical block (11), a conical plug (10) is fixedly installed on the lower surface of the conical block (11), and the conical plug (10) is located inside the funnel pipe (2).

2. The anti-clogging dropping funnel according to claim 1, characterized in that: A liquid injection tube (8) is fixedly connected to one side of the upper surface of the liquid storage funnel (4).

3. The anti-clogging dropping funnel according to claim 1, characterized in that: The outer surface of the lifting screw (6) is provided with scale lines (13).

4. The anti-clogging dropping funnel according to claim 1, characterized in that: A rubber ring (14) is fixedly mounted on the bottom of the inner wall of the fixed tube (9), and the fixed connecting rod (12) passes through the rubber ring (14).

5. The anti-clogging dropping funnel according to claim 1, characterized in that: One end of the lifting screw (6) located outside the fixed tube (9) is fixedly connected to a knob (7).

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