Vacuum type liquid container for on-site detection

Abstract

The utility model discloses a vacuum type liquid holding device for on -the -spot detection, include: the inside of bottle body has the accommodation space, the upper end of bottle body is equipped with an opening, the accommodation space is communicated with the outside world through the opening, the press measuring pump is installed in the opening, the press measuring pump is communicated with the accommodation space through the connecting pipe, the press cover is installed in the upper end of press measuring pump, the upper end of press cover is equipped with a liquid outlet, the liquid outlet is communicated with the accommodation space through press cover, press measuring pump, the outer wall of vacuum plug is slidably installed in the inner wall of accommodation space, the lower end of bottle body is equipped with a gas inlet, the gas inlet is communicated with the accommodation space. The device is convenient and fast when actually using, and can provide more convenient and quick liquid taking method for on -the -spot detection.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum mobile phase bottles and related technologies, and in particular to a vacuum liquid holding device for on-site testing. Background Technology

[0002] With the continuous advancement of science and technology and production techniques, on-site testing technology has developed rapidly in recent years. Its core requirement lies in the integrated operation of reagent storage, quantitative liquid dispensing, and contamination prevention. Traditional liquid storage devices generally adopt open bottle structures or separate pipetting designs, which have the following technical problems in long-term use: First, after multiple dispensings, the liquid level in conventional reagent bottles drops, leading to an increase in gas space. This easily causes the components of volatile reagents to escape or oxidize and deteriorate. When the residual liquid exceeds 30%, it cannot be completely utilized by siphoning. Second, existing lyophilized reagent reconstitution devices mostly rely on external pipetting instruments to add the dissolving solution. The operation process requires opening the cap multiple times, which not only increases the risk of aerosol contamination but may also lead to deviations in the reconstitution concentration.

[0003] Therefore, there is an urgent need to develop a new type of device with self-compensating liquid level function and the ability to ensure fully closed operation, in order to meet the stringent requirements of on-site testing for reagent stability, ease of operation, accuracy of liquid sampling, and reproducibility of testing. Utility Model Content

[0004] In view of this, and to solve the above problems, the purpose of this utility model is to provide a vacuum liquid holding device for on-site testing, comprising:

[0005] Bottle body, press cap, press metering pump, vacuum pump;

[0006] The bottle has an internal accommodating space, and an opening is provided at the upper end of the bottle, through which the accommodating space communicates with the outside.

[0007] The press-to-measure pump is installed in the opening, and the press-to-measure pump is connected to the accommodating space through a connecting pipe;

[0008] The press cover is installed on the upper end of the press metering pump, and the upper end of the press cover is provided with a liquid outlet. The liquid outlet is connected to the accommodating space through the press cover, the press metering pump, and the liquid outlet.

[0009] The outer wall of the vacuum plug is slidably installed on the inner wall of the accommodating space, and an air inlet is provided at the lower end of the bottle body, which is connected to the accommodating space.

[0010] The aforementioned vacuum liquid holding device for on-site testing has an internal thread on the inner wall of the opening and an external thread on the outer wall of the press metering pump, wherein the internal thread matches the external thread.

[0011] In the aforementioned vacuum liquid holding device for on-site testing, the connecting tube extends 0.5 cm into the accommodating space.

[0012] The aforementioned vacuum liquid holding device for on-site testing is wherein the bottle body is made of either medium borosilicate glass or high borosilicate glass.

[0013] The aforementioned vacuum liquid holding device for on-site testing further includes: an outer cover; the outer cover is fitted over the outside of the liquid outlet.

[0014] The aforementioned vacuum liquid holding device for on-site testing comprises an integrated liquid outlet, a press-fit cap, a press-fit metering pump, and a connecting pipe.

[0015] The positive effects of the above technical solution compared with the existing technology are:

[0016] This invention provides a vacuum liquid container for on-site testing. An air inlet is located on the lower surface of the bottle, allowing the vacuum plug to move towards the opening under atmospheric pressure. This causes the remaining liquid in the bottle to rise continuously, keeping the upper half of the bottle full and preventing reagent waste. An outer cap at the top provides dust and contamination protection. A press-operated metering pump dispenses a fixed amount of liquid via the press cap. This pump can be used to hold solid or liquid reagents such as calibrators, quality control samples, or samples. Solid reagents need to be dissolved in liquid reagents before pumping. Solid reagents can be lyophilized. In practical use, this device eliminates the need for pipettes or other pipetting devices, making it convenient and quick, and providing a more convenient and rapid liquid dispensing method for on-site testing. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of a vacuum liquid holding device for on-site testing according to the present invention.

[0018] Figure 2 This is a bottom schematic diagram of a vacuum liquid holding device for on-site testing according to the present invention.

[0019] 1. Outer cap; 2. Liquid outlet; 3. Press cap; 4. Press metering pump; 5. Connecting pipe; 6. Bottle body; 7. Vacuum plug; 8. Air inlet. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0021] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0022] like Figure 1 and Figure 2 As shown, a preferred embodiment of a vacuum-type mobile phase bottle is illustrated, comprising: a bottle body 1, a press cap 3, a press metering pump 4, and a vacuum pump 7.

[0023] The bottle body 6 has an internal accommodating space, and an opening is provided at the upper end of the bottle body 6, through which the accommodating space communicates with the outside. A press-type metering pump 4 is installed at the opening and is connected to the accommodating space through a connecting pipe 5. A press cap 3 is installed at the upper end of the press-type metering pump 4, and a liquid outlet 2 is provided at the upper end of the press cap 3, which is connected to the accommodating space through the press cap 3 and the press-type metering pump 4. The outer wall of the vacuum plug 7 is slidably installed on the inner wall of the accommodating space, and an air inlet 8 is provided at the lower end of the bottle body 6, which is connected to the accommodating space.

[0024] In actual use, when no reagent is poured in, the vacuum stopper 7 is at the bottom of the bottle 6. When pouring in the reagent, first take out the pressing metering pump 4, and then pour in the reagent. When the amount of reagent in the bottle 6 decreases, atmospheric pressure can make the vacuum stopper 7 move in the direction close to the connecting tube 5, ensuring that there is no air in the bottle 6 and avoiding waste of reagent.

[0025] Based on the above, this utility model also has the following embodiments:

[0026] Furthermore, a vacuum liquid holding device for on-site testing is provided, wherein the inner wall of the opening is provided with internal threads, and the outer wall of the press-to-meter pump 4 is provided with external threads, with the internal threads matching the external threads. Specifically, the press-to-meter pump 4 is installed on the upper end of the bottle body 6 via threads, and the installation and disassembly method is simple and quick.

[0027] Furthermore, a vacuum liquid holding device for on-site testing is provided, wherein the connecting tube 5 extends into the accommodating space by 0.5 cm.

[0028] Furthermore, a vacuum-type liquid container for on-site testing is provided, wherein the bottle body 6 is made of either medium borosilicate glass or high borosilicate glass. The bottle body 6 can prevent the reagent inside the bottle from decomposing due to light exposure.

[0029] Furthermore, a vacuum-type liquid holding device for on-site testing further includes: an outer cover 1; the outer cover 1 is fitted over the outside of the liquid outlet 2. Specifically, the outer cover 1 effectively prevents dust and other contaminants from entering the bottle body 6.

[0030] Furthermore, a vacuum-type liquid holding device for on-site testing is provided, wherein the liquid outlet 2, the press cap 3, the press metering pump 4, and the connecting pipe 5 are integrated into one unit. Specifically, the integrated design allows the liquid outlet 2, the press cap 3, the press metering pump 4, and the connecting pipe 5 to be simultaneously detached from the bottle body 6.

[0031] In a further embodiment of this invention, the outer wall of the bottle 1 is provided with several graduation lines. Furthermore, the graduation lines facilitate observation of the amount of reagent inside the bottle 1, allowing for timely replenishment of the reagent.

[0032] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum liquid holding device for on-site testing, characterized in that, include: Bottle body, press cap, press metering pump, vacuum pump; The bottle has an internal accommodating space, and an opening is provided at the upper end of the bottle, through which the accommodating space communicates with the outside. The press-to-measure pump is installed in the opening, and the press-to-measure pump is connected to the accommodating space through a connecting pipe; The press cover is installed on the upper end of the press metering pump, and the upper end of the press cover is provided with a liquid outlet. The liquid outlet is connected to the accommodating space through the press cover, the press metering pump, and the liquid outlet. The outer wall of the vacuum pump is slidably mounted on the inner wall of the accommodating space, and an air inlet is provided at the lower end of the bottle body, which is connected to the accommodating space.

2. The vacuum liquid holding device for on-site testing according to claim 1, characterized in that, The inner wall of the opening is provided with an internal thread, and the outer wall of the press metering pump is provided with an external thread, and the internal thread matches the external thread.

3. A vacuum liquid holding device for on-site testing according to claim 1, characterized in that, The length of the connecting tube extending into the accommodating space is 0.5 cm.

4. A vacuum liquid holding device for on-site testing according to claim 1, characterized in that, The bottle body is made of either medium borosilicate glass or high borosilicate glass.

5. A vacuum liquid holding device for on-site testing according to claim 1, characterized in that, Also includes: Outer cover; the outer cover is fitted over the outside of the liquid outlet.

6. A vacuum liquid holding device for on-site testing according to claim 1, characterized in that, The liquid outlet, the press cover, the press metering pump, and the connecting pipe are integrated into one unit.

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