Micro-quantitative dual-purpose dropper

Abstract

The utility model relates to a trace and quantitative dual-purpose dropper, which belongs to the technical field of droppers and comprises a dropper body, an upper air bag and a lower air bag, the upper air bag is communicated with the lower air bag through a communicating pipe, one end of the dropper body is communicated with the upper portion of the lower air bag, the other end of the dropper body is provided with a self-suction pipe, the dropper body is provided with an air hole, and an expansion line is arranged in the air hole. One end of the expansion line penetrates into the air hole to enter the pipe body, and the other end of the expansion line is fixed after winding the outer side wall of the pipe body by a circle. An expansion line penetrates through the air hole, air can penetrate through fiber gaps of cotton threads in the expansion line, the self-absorption speed is not affected, after self-absorption liquid reaches the cotton threads, the cotton threads can absorb water to expand and block the air hole, and the situation that air enters the air hole due to the fact that the air bag loosens too fast when the solution is absorbed in the second step is avoided; in addition, the colored cotton thread can also play a role in indicating and marking, and a user is reminded to reach the liquid absorption amount when the liquid absorption surface reaches the cotton thread.

Description

Technical Field

[0001] The utility model relates to the technical field of droppers, in particular to a micro-quantity and quantitative dual-purpose dropper. Background Art

[0002] Currently, some testing products on the market require collecting a tiny amount of fingertip blood, mixing it with a solution, and then using a pipette / pipette to draw out the appropriate amount of solution for testing. Some people use both a micro-blood collection tube and a regular dropper to achieve this function. This approach requires multiple accessories and is prone to confusion, leading to sampling failure. Others use a dual-purpose micro-quantitative dropper, which uses the same dropper with a small hole punched in the tube for self-priming. After mixing the solution, the solution is quantitatively drawn out. This approach eliminates one accessory but presents two problems: After collecting the fingertip blood, the mouth and air hole must be immersed in the solution to squeeze out the blood. When drawing out the quantitative solution, the mouth and air hole must also be kept below the liquid level. This can lead to misoperation and experimental failure. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a micro-quantitative dual-purpose dropper to solve the problems raised in the background technology.

[0004] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a micro-quantitative dual-purpose dropper, including a tube body, an upper air bag and a lower air bag, the upper air bag is connected to the lower air bag through a connecting tube, one end of the tube body is connected to the upper part of the lower air bag, and the other end of the tube body is provided with a self-priming tube, an air hole is provided on the tube body, and an expansion wire is provided in the air hole, one end of the expansion wire penetrates the air hole and enters the tube body, and the other end of the expansion wire is fixed after being wrapped around the outer wall of the tube body.

[0005] Furthermore, the expansion thread is cotton thread or a mixture of cotton thread and chemical fiber thread.

[0006] Furthermore, the expansion wire is wrapped around the tube body once and then fixed by hot ironing.

[0007] Furthermore, the self-priming tube is an injection-molded self-priming tube.

[0008] Furthermore, the self-priming tube is connected by being inserted into the tube body.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] An expansion line is passed through the pores. The gaps between the cotton fibers in the expansion line allow air to pass through without affecting the speed of self-priming. After the self-primed liquid reaches the cotton line, the cotton line absorbs water and expands, blocking the pores. This prevents air from entering the pores due to releasing the airbag too quickly during the second step of absorbing the solution. The colored cotton line can also serve as an indicator, reminding the user that the amount of liquid absorbed has been reached when the self-priming liquid level reaches the cotton line.

[0011] The cotton thread passes through the tube body and then wraps around the tube body to make the marking line more complete and obvious;

[0012] One end of the expansion line is fixed with hot ironing cotton thread to prevent the outer cotton thread from being pulled out due to transportation friction;

[0013] The expansion thread is made of cotton thread or mixed thread, which can expand and block the pores after absorbing water. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of A in the middle. DETAILED DESCRIPTION

[0016] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The embodiments of the present invention are described below in conjunction with the drawings.

[0017] like Figure 1-2 As shown, a micro-quantitative dual-purpose dropper includes a tube body 4, an upper air bag 1 and a lower air bag 2. The upper air bag 1 and the lower air bag 2 are connected by a connecting tube 3. One end of the tube body 4 is connected to the upper part of the lower air bag 2. The other end of the tube body 4 is provided with a self-priming tube 5. The tube body 4 is provided with an air hole 6. The air hole 6 is provided with an expansion wire 7. One end of the expansion wire 7 passes through the air hole 6 and enters the tube body. The other end of the expansion wire 7 is wrapped around the outer wall of the tube body 4 and then fixed.

[0018] After experimentation, it was found that when the air hole 6 was small enough, it was not necessary to immerse both the mouth and the air hole in the solution in order to squeeze out the blood, and the blood could be squeezed out directly. However, if the air hole 6 was too small, the speed of sucking blood would be too slow, affecting the operation. Moreover, no matter how small the air hole 6 was, it was impossible to avoid the problem of bubbles entering the tube body 4 from the air hole 6 due to pinching the air bag and releasing it too quickly when sucking a quantitative solution. It was found that if an expansion wire 7 was passed into the air hole 6, and the expansion wire 7 was a cotton thread, the fiber gaps in the cotton thread could allow air to pass through, without affecting the speed of self-priming. After the self-primed liquid reached the cotton thread, the cotton thread could absorb water and expand, blocking the air hole, thus preventing air from entering the air hole 6 due to releasing the air bag too quickly when sucking the solution in the second step. In addition, the colored cotton thread could also serve as an indicator mark, reminding the user that the amount of liquid sucked was reached when the self-priming liquid level reached the cotton thread.

[0019] The expansion line 7 is a cotton line or a mixed line of cotton and chemical fiber; the expansion line 7 is fixed by hot ironing after being wrapped around the tube body 4, so that the marking line is more complete and obvious, and the outer ring expansion line 7 is prevented from being pulled out due to transportation friction;

[0020] The self-priming tube 5 is an injection-molded self-priming tube; the self-priming tube 5 is connected by being inserted into the tube body 4. The self-priming tube 5 is set as needed. If the precision of the self-priming liquid volume is relatively high, the self-priming tube 5 is used. If the precision of the self-priming liquid volume is not high, the tube body 4 is directly hydrophilized.

[0021] An expansion line 7 is passed through the air hole 6. The expansion line 7 is a cotton thread. The fiber gaps of the cotton thread in the expansion line 7 allow air to pass through without affecting the speed of self-priming. After the self-primed liquid reaches the cotton thread, the cotton thread can absorb water and expand, blocking the air hole, thereby preventing air from entering the air hole due to releasing the air bag too quickly during the second step of absorbing the solution. The colored cotton thread can also serve as an indicator mark to remind the user that the amount of liquid absorbed has been reached when the self-priming liquid level reaches the cotton thread.

[0022] The cotton thread passes through the tube body 4 and then wraps around the tube body to make the marking line more complete and obvious;

[0023] One end of the expansion line 7 is fixed with cotton thread by hot ironing to prevent the outer cotton thread from being pulled out due to transportation friction;

[0024] The expansion thread is made of cotton thread or mixed thread, which can expand and block the pores after absorbing water.

[0025] The above describes the technical solution of the present invention in conjunction with specific embodiments. However, it should be noted that the above description is only for the purpose of explaining the solution of the present invention and should not be construed in any way as a specific limitation on the scope of protection of the utility model. Based on the explanations herein, those skilled in the art can conceive of other specific embodiments of the present invention or equivalent replacements without inventive effort, and all such replacements will fall within the scope of protection of the present invention.

Claims

1. A micro-quantitative dual-purpose dropper, characterized in that: The invention comprises a tube body (4), an upper air bag (1) and a lower air bag (2), wherein the upper air bag (1) is connected to the lower air bag (2) via a connecting pipe (3), one end of the tube body (4) is connected to the upper part of the lower air bag (2), the other end of the tube body (4) is provided with a self-priming tube (5), the tube body (4) is provided with an air hole (6), an expansion line (7) is provided in the air hole (6), one end of the expansion line (7) penetrates the air hole (6) and enters the tube body, and the other end of the expansion line (7) is fixed after being circled around the outer wall of the tube body (4).

2. The micro-quantitative dual-purpose dropper according to claim 1, characterized in that: The expansion thread (7) is a cotton thread or a mixed thread of cotton thread and chemical fiber.

3. The micro-quantitative dual-purpose dropper according to claim 1, characterized in that: The expansion line (7) is wrapped around the tube body (4) and then fixed by hot stamping.

4. The micro-quantitative dual-purpose dropper according to claim 1, characterized in that: The self-priming tube (5) is an injection-molded self-priming tube.

5. The micro-quantitative dual-purpose dropper according to claim 4, characterized in that: The self-priming pipe (5) is connected by being inserted into the pipe body (4).

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