Quantitative dropper

Abstract

The utility model discloses a quantitative dropper which comprises a dropper body, a dropper head, a dropper cover and a quantitative component, the tube body comprises a liquid storage part and a quantitative capsule, the liquid storage part comprises a first section, a second section and a third section, and an opening in one end of the quantitative capsule is connected with the first section; the quantifying component comprises a shell and a quantifying button, the shell and the quantifying button are connected through a connecting piece, a first limiting protrusion is arranged on the inner wall of the connecting piece, and the inner wall of the first limiting protrusion abuts against the outer wall of the quantifying capsule. Based on the quantitative dropper, when the quantitative button is squeezed inwards, the first limiting protrusion squeezes the quantitative capsule inwards to enable liquid in the liquid storage part to drop out, when the inner wall of the quantitative button abuts against the outer wall of the first section, the first limiting protrusion stops squeezing the quantitative capsule, and the quantitative capsule is separated from the liquid storage part through the first limiting protrusion. And the amount of liquid dripped by extruding the quantitative button every time is the same, so that the liquid can be accurately measured.

Description

Technical Field

[0001] This utility model relates to a dripping device, specifically a quantitative dropper. Background Technology

[0002] In many fields such as scientific research, medicine, and chemical engineering, the precise measurement and addition of liquid reagents is a fundamental and crucial operation. Traditional droppers consist of a simple suction tube and a rubber bladder, with the liquid being drawn and added by manually squeezing the bladder. However, this operation relies entirely on personal experience, making it difficult to accurately control the liquid volume and prone to significant errors, severely impacting the accuracy and stability of experimental or production results. For example, in sophisticated chemical analysis experiments, even slight deviations in reagent addition can interfere with the chemical reaction process, leading to inaccurate experimental data and unreliable conclusions. In medical testing, errors in sample or reagent measurement can result in misinterpretations of test results, delaying patient diagnosis and treatment.

[0003] However, existing quantitative droppers still have room for improvement. The graduation readings of some quantitative droppers are affected by factors such as liquid surface tension and light refraction, making it difficult to achieve high-precision measurement in actual operation. Therefore, this application provides a quantitative dropper that can accurately measure liquids. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative dropper designed to accurately measure liquids and reduce measurement errors of samples or reagents.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: A quantitative dropper includes: a tube body, a dropper head, a dropper cap, and a quantitative component; the tube body includes a liquid storage section and a quantitative capsule, the liquid storage section includes a first section, a second section, and a third section, one end of the quantitative capsule is open and connected to the first section, and the outer wall of the second section is provided with a first protrusion; the quantitative component includes a shell and a quantitative button, the shell and the quantitative button are connected by a connector, the inner wall of the connector is provided with a first limiting protrusion, the inner wall of the shell is provided with a first groove, the first groove cooperates with the first protrusion, and the inner wall of the first limiting protrusion abuts against the outer wall of the quantitative capsule; the outer wall of the liquid storage section is in close contact with the inner wall of the dropper head, and the outer wall of the dropper head is in close contact with the inner wall of the dropper cap.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the outer wall of the third segment is provided with a first external thread and a second limiting protrusion, the inner wall of the dripper is provided with a first internal thread, the first external thread and the first internal thread are engaged, and the end of the dripper abuts against the second limiting protrusion.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the dripper includes a first part and a second part, and the outer wall of the first part is provided with a second protrusion.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the outer wall of the second part is provided with a second external thread, the inner wall of the drip cap is provided with a second internal thread, the second external thread and the second internal thread are engaged, and the outer wall of the drip cap is provided with a third protrusion.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the outer wall of the quantitative button is provided with a fourth protrusion.

[0010] The beneficial effects of this utility model are as follows: Based on the quantitative dropper of this utility model, when the quantitative button is squeezed inward, the first limiting protrusion squeezes the quantitative capsule inward, causing the liquid inside the reservoir to drip out. When the inner wall of the quantitative button abuts against the outer wall of the first section, the first limiting protrusion stops squeezing the quantitative capsule. Based on the function of the first limiting protrusion, the amount of liquid dripped out each time the quantitative button is squeezed is the same, which helps to accurately measure the liquid. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the quantitative dropper involved in this utility model;

[0012] Figure 2 This is a cross-sectional structural diagram of the quantitative dropper involved in this utility model;

[0013] Figure 3 This is a cross-sectional structural diagram of the quantitative dropper involved in this utility model;

[0014] In the diagram: 1-tube body, 2-dropper head, 3-dropper cap, 4-quantitative component, 5-liquid storage section, 6-quantitative capsule, 7-first section, 8-second section, 9-third section, 10-first protrusion, 11-shell, 12-quantitative button, 13-connector, 14-first limiting protrusion, 15-first groove, 16-first external thread, 17-second limiting protrusion, 18-first internal thread, 19-first part, 20-second part, 21-second protrusion, 22-second external thread, 23-second internal thread, 24-third protrusion, 25-fourth protrusion. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] Combination Figure 1-3This embodiment provides a detailed description of a quantitative dropper, comprising: a tube body 1, a dropper head 2, a dropper cap 3, and a quantitative component 4; the tube body 1 includes a liquid storage section 5 and a quantitative capsule 6, the liquid storage section 5 including a first segment 7, a second segment 8, and a third segment 9, one end of the quantitative capsule 6 being connected to the first segment 7, and the outer wall of the second segment 8 having a first protrusion 10; the quantitative component 4 includes a housing 11 and a quantitative button 12, the housing 11 and the quantitative button 12 being connected by a connector 13, the inner wall of the connector 13 having a first limiting protrusion 14, and the inner wall of the housing 11 having a first groove 15, the first groove 15 engaging with the first protrusion 10, the inner wall of the first limiting protrusion 14 abutting against the outer wall of the quantitative capsule 6; the outer wall of the liquid storage section 5 is in close contact with the inner wall of the dropper head 2, and the outer wall of the dropper head 2 is in close contact with the inner wall of the dropper cap 3.

[0017] Specifically, one end of the connector 13 is connected to the housing 11, and the outer wall of the connector 13 is misaligned with the inner wall of the metering button 12. When the metering button 12 is squeezed inward, the first limiting protrusion 14 squeezes the metering capsule 6 inward, causing the liquid inside the liquid storage part 5 to drip out. When the inner wall of the metering button 12 abuts against the outer wall of the first section 7, the first limiting protrusion 14 stops squeezing the metering capsule 6. Based on the function of the first limiting protrusion 14, the amount of liquid dripped out each time the metering button 12 is squeezed is the same, which helps to accurately measure the liquid.

[0018] Furthermore, the outer wall of the third segment 9 is provided with a first external thread 16 and a second limiting protrusion 17, the inner wall of the dripping head 2 is provided with a first internal thread 18, the first external thread 16 and the first internal thread 18 are engaged, and the end of the dripping head 2 abuts against the second limiting protrusion 17.

[0019] Furthermore, the dripper 2 includes a first part 19 and a second part 20, and the outer wall of the first part 19 is provided with a second protrusion 21.

[0020] Specifically, at the mating point of the first external thread 16 and the first internal thread 18, the inner wall of the first portion 19 is provided with a groove. When the first external thread 16 and the first internal thread 18 are mated, the end of the third segment 9 extends into the groove.

[0021] Furthermore, the outer wall of the second part 20 is provided with a second external thread 22, and the inner wall of the dropper cap 3 is provided with a second internal thread 23. The second external thread 22 and the second internal thread 23 mate with each other, and the outer wall of the dropper cap 3 is provided with a third protrusion 24. The second protrusion 21 and the third protrusion 24 serve to increase the friction force, making it convenient to disassemble and assemble the various parts of the metering dropper.

[0022] Furthermore, the outer wall of the metering button 12 is provided with a fourth protrusion 25. The fourth protrusion 25 has the function of increasing friction, making it easier to squeeze the metering button 12.

[0023] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A dosing dropper, characterized in that, The application relates to a liquid drop device, which comprises a tube body (1), a drop head (2), a drop cover (3) and a quantitative component (4); the tube body (1) comprises a liquid storage part (5) and a quantitative capsule (6), the liquid storage part (5) comprises a first section (7), a second section (8) and a third section (9), the quantitative capsule (6) is connected with the first section (7) at one end, and the outer wall of the second section (8) is provided with a first protrusion (10); the quantitative component (4) comprises a shell (11) and a quantitative button (12), the shell (11) and the quantitative button (12) are connected through a connecting piece (13), the inner wall of the connecting piece (13) is provided with a first limiting protrusion (14), the inner wall of the shell (11) is provided with a first groove (15), the first groove (15) is matched with the first protrusion (10), and the inner wall of the first limiting protrusion (14) abuts against the outer wall of the quantitative capsule (6); the outer wall of the liquid storage part (5) is tightly abutted against the inner wall of the drop head (2), and the outer wall of the drop head (2) is tightly abutted against the inner wall of the drop cover (3). The outer wall of the third section (9) is provided with a first outer thread (16) and a second limiting protrusion (17), the inner wall of the drop head (2) is provided with a first inner thread (18), the first outer thread (16) is matched with the first inner thread (18), and the end of the drop head (2) abuts against the second limiting protrusion (17).

2. A metering dropper according to claim 1, characterized in that The drop head (2) comprises a first part (19) and a second part (20), and the outer wall of the first part (19) is provided with a second protrusion (21).

3. A metering dropper according to claim 1, wherein The outer wall of the second part (20) is provided with a second outer thread (22), the inner wall of the drop cover (3) is provided with a second inner thread (23), the second outer thread (22) is matched with the second inner thread (23), the outer wall of the drop cover (3) is provided with a third protrusion (24).

4. A metering dropper according to claim 3, wherein The outer wall of the quantitative button (12) is provided with a fourth protrusion (25).

5. A metering dropper according to claim 1, wherein ​

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