Container with constant liquid level of liquid taking opening

Abstract

The container comprises a bottle body, a partition plate is fixedly connected in the bottle body, a liquid storage cavity is formed in the portion, located on one side of the partition plate, in the bottle body, a liquid taking cavity is formed in the portion, located on the other side of the partition plate, in the bottle body, and the liquid taking cavity is communicated with the liquid storage cavity. The liquid taking cavity and the liquid storage cavity are communicated with each other, a liquid taking hole is reserved between the liquid taking cavity and the liquid storage cavity, a liquid inlet is formed in the top of the liquid storage cavity, a liquid outlet is formed in the top of the liquid taking cavity, a first bottle plug is arranged on the inner wall of the liquid inlet, a second bottle plug is arranged on the inner wall of the liquid outlet, and a measuring tube is arranged on the outer wall of the liquid storage cavity. And the bottom of the measuring tube is fixedly connected with a sensor. Due to the fact that the liquid storage cavity is communicated with the liquid taking cavity, after liquid in the liquid taking cavity is extracted, the liquid in the liquid storage cavity can be supplemented in time, the liquid taking opening is provided with a small caliber, the caliber is matched with the size of the gun head, the gun head can stretch into the liquid taking opening, the liquid volatilization surface is reduced, and the gun head can be inserted into the liquid taking hole between the liquid taking cavity and the liquid storage cavity.

Description

Technical Field

[0001] This utility model belongs to the field of laboratory technology, specifically relating to a container with a constant liquid level at the liquid outlet. Background Technology

[0002] Liquid reagents are frequently used in environmental and medical testing. Liquids, especially organic reagents such as ethanol and methanol, are volatile. In the process of automation, wide-mouth, open reagent bottles are often used to facilitate the transfer of reagents by the equipment. However, this cannot prevent the evaporation of reagents, which leads to waste and environmental pollution. To solve the problem of openness, an electronically controlled device is often used to seal the bottle, which is opened when liquid transfer is needed, increasing the complexity of the structure. In addition, to prevent the pipette tip from immersing too deeply in the liquid, as excessive immersion can cause residue to adhere to the outer surface of the tip and affect the accuracy of liquid transfer, conductive pipette tips are now commonly used to sense the liquid level and control the depth of immersion.

[0003] While the above methods solve the problems of volatilization and excessive penetration, they also increase the complexity of the structure, manufacturing costs, and usage costs. In particular, the cost of conductive gun heads is high, often 10 times or more than that of ordinary gun heads, which makes it difficult for the widespread application of the equipment. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a container with a constant liquid level at the liquid outlet, which has the advantage of facilitating liquid extraction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a container with a constant liquid level at the dispensing port, comprising a bottle body, a partition fixedly connected inside the bottle body, a liquid storage chamber on one side of the partition inside the bottle body, a dispensing chamber on the other side of the partition inside the bottle body, the dispensing chamber and the liquid storage chamber being interconnected and having a dispensing hole, an inlet at the top of the liquid storage chamber, and an outlet at the top of the dispensing chamber.

[0006] The above technical solution facilitates liquid collection. The outlet has a small diameter that matches the size of the nozzle, allowing the nozzle to be inserted and reducing the liquid evaporation surface. The liquid collection hole between the collection chamber and the storage chamber allows the nozzle to be inserted.

[0007] Preferably, the inner wall of the liquid inlet is provided with a first stopper, the inner wall of the liquid outlet is provided with a second stopper, the outer wall of the liquid storage chamber is provided with a measuring tube, and a sensor is fixedly connected to the bottom of the measuring tube. The sensor can be a photoelectric sensor or a capacitive sensor.

[0008] The above technical solution can achieve the effect of air pressure. The first and second stoppers can block the airflow, thereby regulating the air pressure. The outer wall of the liquid storage chamber is connected to the measuring tube and can be at the same level as the liquid level inside. In this way, when the liquid is almost gone, the sensor can detect that the liquid in the storage chamber is about to be used up.

[0009] Preferably, the bottom of the liquid storage cavity is provided with an inclined surface that slopes towards the liquid extraction cavity, and the bottom of the liquid extraction cavity is provided with an enrichment cavity that is lower than the inclined surface.

[0010] The above technical solution can achieve the effect of saving. The bottom of the liquid storage chamber of the reagent bottle is set with a slope, and the outlet is set with a V-shaped enrichment chamber, and the bottom surface is lower than the slope. When the reagent is small in volume, it can be enriched in the enrichment chamber for easy liquid collection and reduce reagent waste.

[0011] Preferably, when filling with liquid, the first stopper is removed and the second stopper seals the outlet.

[0012] With the above technical solution, when filling the liquid, the liquid cannot enter the liquid extraction chamber because the extraction chamber is sealed by the second stopper.

[0013] Preferably, when taking liquid, the first stopper seals the inlet and the second stopper is removed.

[0014] With the above technical solution, when taking liquid, the volume of liquid taken away will be equal to the volume of air entering. The gas is compressed by the liquid, and the gas pressure is equal to the liquid pressure at the air inlet. After the gas reaches the top, liquid will rush into the air inlet to form a new equilibrium. In this way, the liquid height in the liquid taking chamber will only be slightly higher than the liquid taking hole, thus facilitating liquid taking.

[0015] Preferably, the liquid storage chamber and the liquid extraction chamber satisfy the following formula:

[0016]

[0017] Among them, P 标记处压力 The pressure at the bottom end of the partition (105) corresponding to the horizontal plane.

[0018] With the above technical solution, since the pressure of the liquid extraction chamber and the liquid storage chamber is the same at the liquid outlet, when the liquid decreases, in order to balance the pressure, the liquid in the liquid storage chamber will flow into the liquid extraction chamber in a certain amount, thus facilitating liquid extraction. The marked part is hydraulically pressed at the liquid outlet position.

[0019] Preferably, the sensor can be a photoelectric sensor or a capacitive sensor. Other sensors with similar functions can also be used.

[0020] Through the above technical solution, the sensor, which uses a photoelectric sensor or a capacitive sensor, can trigger a low liquid alarm when the liquid level is low, thus indicating that liquid needs to be added.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. Since the storage chamber and the extraction chamber are connected, the liquid in the storage chamber will be replenished in time after the liquid in the extraction chamber is drawn. The outlet is set with a small diameter that matches the size of the nozzle, allowing the nozzle to be inserted and reducing the liquid evaporation surface. The extraction hole between the extraction chamber and the storage chamber allows the nozzle to be inserted.

[0023] 2. The first and second stoppers can block the airflow, thereby regulating the air pressure. The bottom of the reagent bottle's storage chamber is set with an incline, and the outlet is set with a V-shaped enrichment chamber, with the bottom surface lower than the incline. When the reagent is in a small volume, it can be enriched in the enrichment chamber for easy liquid collection and reduce reagent waste. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the main filling structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the liquid-taking state change structure of the main body of this utility model.

[0027] In the diagram: 1. Bottle body; 2. First stopper; 3. Second stopper; 101. Inlet; 102. Outlet; 103. Inclined surface; 104. Enrichment chamber; 105. Partition; 106. Storage chamber; 107. Taking chamber; 108. Measuring tube. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1:

[0030] Please see Figures 1-3This utility model provides a technical solution: a container with a constant liquid level at the dispensing port, comprising a bottle body 1, a partition 105 fixedly connected inside the bottle body 1, a liquid storage chamber 106 opened on one side of the partition 105 inside the bottle body 1, and a dispensing chamber 107 opened on the other side of the partition 105 inside the bottle body 1, the dispensing chamber 107 and the liquid storage chamber 106 are interconnected and have a dispensing hole, an inlet 101 opened at the top of the liquid storage chamber 106, and an outlet 102 opened at the top of the dispensing chamber 107.

[0031] In this embodiment, liquid can be stored in the storage chamber 106. Since the storage chamber 106 is connected to the extraction chamber 107, the liquid in the storage chamber 106 will be replenished in time after the liquid in the extraction chamber 107 is extracted. The outlet 102 is provided with a small diameter that is adapted to the size of the nozzle, allowing the nozzle to be inserted and reducing the liquid evaporation surface. The extraction hole between the extraction chamber 107 and the storage chamber 106 allows the nozzle to be inserted.

[0032] Example 2:

[0033] Please see Figures 1-3 Based on Embodiment 1, this utility model provides a container technical solution with a constant liquid level at the liquid inlet: a first stopper 2 is provided on the inner wall of the liquid inlet 101, a second stopper 3 is provided on the inner wall of the liquid outlet 102, a measuring tube 108 is provided on the outer wall of the liquid storage chamber 106, a sensor is fixedly connected to the bottom of the measuring tube 108, an inclined surface 103 is provided at the bottom of the liquid storage chamber 106 that slopes toward the liquid inlet 107, and an enrichment cavity 104 that is lower than the inclined surface 103 is opened at the bottom of the liquid inlet 107.

[0034] In this embodiment, the first stopper 2 and the second stopper 3 can block the airflow, thereby regulating the air pressure. The bottom of the reagent bottle storage cavity 106 is provided with a slope 103, and the outlet 102 is provided with a V-shaped enrichment cavity 104, with the bottom surface lower than the slope 103. When the reagent is in a small volume, it can be enriched in the enrichment cavity 104 for easy liquid collection and reduce reagent waste. The outer wall of the storage cavity 106 is connected to the measuring tube 108, and can be at the same height as the liquid level inside it. In this way, when the liquid is almost gone, the sensor can detect that the liquid in the storage cavity 106 is about to be used up.

[0035] Example 3:

[0036] Please see Figures 1-3 Based on Embodiments 1 and 2, this utility model provides a container technical solution with a constant liquid level at the liquid outlet: when filling with liquid, the first stopper 2 is removed, and the second stopper 3 seals the liquid outlet 102; when taking out liquid, the first stopper 2 seals the liquid inlet 101, and the second stopper 3 is removed. The liquid storage chamber and the liquid taking chamber satisfy the following formula:

[0037]

[0038] Among them, P 标记处压力 The pressure at the bottom end of the partition (105) corresponding to the horizontal plane. The sensor can be a photoelectric sensor or a capacitive sensor.

[0039] In this embodiment, when filling the liquid, the liquid in the liquid inlet 107 is sealed by the second stopper 3, so the liquid cannot enter the liquid inlet 107. When taking liquid, the volume of liquid taken out is equal to the volume of air that enters. The gas is compressed by the liquid, and the gas pressure is equal to the liquid pressure at the air inlet. After the gas reaches the top, the liquid will flow into the air inlet, forming a new equilibrium. In this way, the liquid height in the liquid inlet 107 will only be slightly higher than the liquid inlet, thus facilitating liquid taking. Since the liquid inlet and the liquid storage chamber have the same pressure at the liquid outlet, when the liquid decreases, in order to balance the pressure, the liquid in the liquid storage chamber will flow into the liquid inlet in a measured amount, thus facilitating liquid taking. The marked point is hydraulically pressed at the liquid outlet position. The sensor uses a photoelectric sensor or a capacitive sensor to trigger a low liquid alarm when the liquid level is low, thus indicating that liquid needs to be added.

[0040] The working principle and usage process of this utility model are as follows: In use, first use the first stopper 2 to block the outlet 102. Then, pour in the liquid reagent through the inlet 101. The outlet 102 is connected to the reagent bottle's storage chamber 106. Therefore, initially, the liquid level in the outlet 102 is the same as the liquid level in the reagent bottle's storage chamber 106. As the liquid level increases, it rises. When the reagent liquid level reaches the bottom of the partition 105, a seal is formed inside the outlet 102, ensuring that the outlet 102 remains sealed. By leaving a small amount of air, even when more reagent is poured in, the liquid level in the reagent bottle's storage chamber 106 continuously rises. However, due to the air pressure inside the outlet 102, the liquid in the reagent bottle's storage chamber 106 cannot enter the outlet 102. After a sufficient amount of reagent has been added, the first stopper 2 is tightened to seal the bottle. At this point, the second stopper 3 is removed from the outlet 102. Due to atmospheric pressure, the air in the reagent bottle's storage chamber 106 creates a negative pressure, preventing the liquid from overflowing. Therefore, the liquid level in the outlet 102 remains constant. When liquid needs to be dispensed, the liquid level in the outlet 102 drops, no longer flush with the bottom of the partition 105, and cannot seal the reagent bottle storage cavity 106. At this time, liquid flows out of the reagent bottle storage cavity 106, and air enters. When the liquid flowing out of the reagent bottle storage cavity 106 causes the liquid level in the outlet 102 to return to the bottom of the partition 105, it again seals the liquid in the reagent bottle storage cavity 106, thus achieving... The liquid in the outlet 102 is automatically replenished, and the liquid level is kept flush with the bottom of the partition 105 after replenishment. Since the pressure in the liquid taking chamber and the liquid storage chamber is the same at the outlet, when the liquid decreases, in order to balance the pressure, the liquid in the storage chamber will flow into the liquid taking chamber in a measured amount, which facilitates liquid taking. The marking point is hydraulically pressed at the outlet position. The sensor uses a photoelectric sensor or a capacitive sensor to trigger a low liquid alarm when the liquid level is low, which can indicate that liquid needs to be added.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A container with a constant liquid level at the dispensing port, comprising a bottle body (1), characterized in that: A partition (105) is fixedly connected inside the bottle body (1). A liquid storage chamber (106) is provided on one side of the partition (105) inside the bottle body (1). A liquid extraction chamber (107) is provided on the other side of the partition (105) inside the bottle body (1). The liquid extraction chamber (107) and the liquid storage chamber (106) are interconnected and have a liquid extraction hole. An inlet (101) is provided at the top of the liquid storage chamber (106), and an outlet (102) is provided at the top of the liquid extraction chamber (107).

2. The container with a constant liquid level at the liquid inlet according to claim 1, characterized in that: The inner wall of the liquid inlet (101) is provided with a first stopper (2), the inner wall of the liquid outlet (102) is provided with a second stopper (3), the outer wall of the liquid storage chamber (106) is provided with a measuring tube (108), and a sensor is fixedly connected to the bottom of the measuring tube (108).

3. The container with a constant liquid level at the liquid inlet according to claim 1, characterized in that: The bottom of the liquid storage chamber (106) is provided with an inclined surface (103) that slopes toward the liquid extraction chamber (107), and the bottom of the liquid extraction chamber (107) is provided with an enrichment chamber (104) that is lower than the inclined surface (103).

4. A container with a constant liquid level at the liquid inlet according to claim 2, characterized in that: The sensor can be a photoelectric sensor or a capacitive sensor.

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