CN203874792U - Novel liquid sample injector - Google Patents

Abstract

The utility model discloses a novel liquid sample injector, which comprises a rubber head (1), a volume measuring tube (2), a joint (3) and a thin tube (4), and is characterized in that the rubber head (1) and the volume measuring The area (2) is connected by a glass tube, and a joint (3) is installed in the center of the bottom surface of the volume measuring tube (2), and the thin tube (4) is set on the joint (3); the rubber head (1) is made of rubber, gently Squeeze the rubber head (1) to take a sample, which is convenient and quick. Due to the external atmospheric pressure, the liquid will not leak during the transfer process; the volume of the rubber head (1) is the same as that of the volume measuring tube (2). It can prevent the glue head (1) from being polluted and corroded by excessive inhaled liquid; the volume measuring tube (2) has a scale, and the sampling can be quantified; when injecting a sample, the thin tube of the sampler (4) directly extends into the container to the bottom of the container Unloading, the liquid reagent will not stick to the container wall; the narrow tube (4) is made of soft material, which is convenient to enter and exit the irregularly shaped reactor; there are a variety of thin tubes (4) of different lengths, which can be replaced as needed .

Description

A New Type of Liquid Sampler

technical field

The utility model relates to a laboratory appliance, in particular to a liquid sample injector for a small-mouth container.

Background technique

In the laboratory, reaction vessels with relatively small diameters or slender bottles are often used. When liquid reagents are injected into such containers, pipettes and rubber-tip droppers cannot enter the container, causing the liquid to stick to the inner wall of the container or even flow out from the bottle mouth, making sample injection difficult and causing waste. For samples that need to be quantified, it will also affect the accuracy of the experiment. If the sample is corrosive or highly toxic, it will pose a threat to the health of the experimenter.

Contents of the invention

The purpose of this utility model is to provide a new type of liquid sample injector. When in use, squeeze the rubber head and insert the thin tube into the reagent bottle. After the finger is released, the liquid reagent will be sucked into the volume measuring tube, and the liquid reagent will be transferred after quantification. To a small-bore reaction container, insert the thin tube into the container to the bottom of the container, squeeze the rubber head to discharge the liquid reagent into the reactor. The whole process will not cause leakage and loss of liquid reagents, and the operation is quick and convenient. The new liquid sampler can be used for both quantitative and non-quantitative sampling.

In order to solve the problems existing in the background technology, the technical solution adopted by the utility model is: a new type of liquid sample injector, including a rubber head 1, a volume measuring tube 2, a joint 3 and a thin tube 4, characterized in that: the rubber head 1 is connected with the volume measuring tube 2 through a glass tube, and a joint 3 is installed in the center of the bottom surface of the volume measuring tube 2, and the thin tube 4 is set on the joint 3; the rubber head 1 is made of rubber, and its shape can be changed by squeezing with fingers, and its volume The volume is the same as the volume measuring tube 2; the volume measuring tube 2 has a scale, and its shape, size and scale accuracy can be designed and manufactured into different models according to needs; the thin tube 4 is made of soft material and can be bent.

The beneficial effects of the utility model are: 1. Sampling can be carried out by lightly squeezing the rubber head 1, which is convenient and fast; 2. Due to the effect of external atmospheric pressure, the liquid will not leak during the transfer process; 3. The volume measuring tube 2 has a With scale, sampling can be quantified; 4. When injecting samples, the thin tube 4 of the sampler directly extends into the container to discharge at the bottom of the container, so that the liquid reagent will not stick to the container wall, ensuring that the volume of the solvent remains unchanged, the experimental data is accurate, and the test data is reduced. Small experimental system error; 5. The volume of the rubber head 1 and the volume measuring tube 2 are the same, which can prevent the pollution and corrosion of the rubber head 1 caused by excessive inhaled liquid; 6. The thin tube 4 is made of soft materials, which is convenient for in and out. Regularly shaped reactor; 7. The new liquid sampler can be used for both quantitative and non-quantitative sampling; 8. The volume measuring tube 2 can be made into different capacities and shapes, so as to be suitable for different volumes. Sample injection; 9. There are various thin tubes 4 of different lengths, which can be replaced as needed.

Description of drawings

Fig. 1 is the structural representation of injector;

Fig. 2 is a structural schematic diagram of an example of using the injector.

Drawing description: 1. Glue head, 2. Volume measuring tube, 3. Connector, 4. Thin tube.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figures 1 and 2, the novel liquid sampler includes a rubber head 1, a volume measuring tube 2, a joint 3 and a narrow tube 4, and is characterized in that: the rubber head 1 is connected to the volume measuring tube 2 through a glass tube , a joint 3 is installed in the center of the bottom surface of the volume measuring tube 2, and the thin tube 4 is set on the joint 3; the rubber head 1 is made of rubber, and its shape can be changed by squeezing with fingers, and its volume is the same as that of the volume measuring tube 2; The volume measuring tube 2 has a scale, and its shape, size and scale accuracy can be designed and manufactured into different models according to needs; the thin tube 4 is made of soft material and can be bent.

When in use, you can take a sample by gently squeezing the rubber head 1, which is convenient and fast. Due to the effect of the external atmospheric pressure, the liquid will not leak during the transfer process; the volume measuring tube 2 has a scale, and the sample can be quantified; , the thin tube 4 of the sampler directly extends into the container to discharge at the bottom of the container, the liquid reagent will not stick to the wall of the container, ensuring that the volume of the solvent remains unchanged, the experimental data is accurate, and the error of the experimental system is reduced; the glue head 1 and the volume measuring tube 2 have the same volume and size, which can prevent the contamination and corrosion of rubber head 1 caused by excessive inhaled liquid; thin tube 4 is made of soft material, which is convenient to enter and exit the reactor with irregular shape; the new liquid sampler can be used for quantitative The sample injection can also be used for non-quantitative sample injection; the volumetric measuring tube can be made into different capacities and shapes to suit the sample injection with different volume requirements; there are a variety of thin tubes of different lengths, which can be replaced as needed. the

Claims (4)

1. A new type of liquid sampler, including a rubber head (1), a volume measurement tube (2), a joint (3) and a thin tube (4), characterized in that: the rubber head (1) and the volume measurement area (2 ) are connected through a glass tube, a joint (3) is installed in the center of the bottom surface of the volume measuring tube (2), and the thin tube (4) is sleeved on the joint (3). 2. A new type of liquid sampler according to claim 1, characterized in that: the rubber head (1) is made of rubber, its shape can be changed by squeezing with fingers, and its volume is the same as that of the volume measuring tube (2) same size. 3. A new type of liquid sampler according to claim 1, characterized in that: the volume measuring tube (2) has a scale, and its shape, size and scale accuracy can be designed and manufactured into different models according to needs. 4. A novel liquid sampler according to claim 1, characterized in that: the thin tube (4) is made of soft material and can be bent.