Sampler

Abstract

The utility model relates to the technical field of sample transfer, and particularly discloses a sampler which comprises a temporary storage container, a first pipeline and a second pipeline, wherein the temporary storage container is provided with an inner containing cavity, the top of the temporary storage container is provided with a connecting part communicated with the inner containing cavity, and the connecting part is used for being connected with an injector. The first pipeline and the second pipeline are both arranged at the bottom of the temporary storage container and communicated with the inner containing cavity, the first pipeline and the second pipeline are both provided with one-way valves, the one-way valve on the first pipeline allows liquid to flow into the inner containing cavity, and the one-way valve on the second pipeline allows liquid to flow out of the inner containing cavity. Through the arrangement, the temporary storage container does not need to be transferred many times in the sampling process, the sampling time is shortened, and the sampling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sample transfer, in particular to a sampler. Background Art

[0002] In the centralized blending base of essence and flavor, hundreds or even thousands of essence and flavor raw materials are stored in the warehouse every month, and quality control personnel need to sample and detect them.

[0003] In the current sampling process, disposable pipettes are used. The volume of the disposable pipettes sold on the market is small. Generally, the pipettes need to be transferred between the reagent bottle and the sampling bottle multiple times to complete the sampling. Among them, it takes 5 minutes to take a 100 ml sample, resulting in a long sampling time and low efficiency.

[0004] Therefore, it is urgent to research a sampler to solve the problems of long sampling time and low efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sampler to solve the problems of long sampling time and low sampling efficiency in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The sampler includes:

[0008] A temporary storage container, which has an internal cavity. The top of the temporary storage container has a connecting part communicating with the internal cavity, and the connecting part is used to connect a syringe;

[0009] A first pipeline and a second pipeline, both of which are arranged at the bottom of the temporary storage container and communicate with the internal cavity. One-way valves are arranged on both the first pipeline and the second pipeline. The one-way valve on the first pipeline allows liquid to flow into the internal cavity, and the one-way valve on the second pipeline allows liquid to flow out of the internal cavity.

[0010] As an optional technical solution of the sampler, the length of the first pipeline is 40 cm to 60 cm; and / or,

[0011] The length of the second pipeline is 20 cm to 30 cm.

[0012] As an optional technical solution of the sampler, the inner diameter of at least the second pipeline among the first pipeline and the second pipeline is 4 mm to 6 mm.

[0013] As an optional technical solution of the sampler, the distances between the two one-way valves and the temporary storage container are the same, and the distance ranges are both between 1 cm and 3 cm.

[0014] As an alternative technical solution of the sampler, the volume of the internal cavity is greater than 100 ml.

[0015] As an alternative technical solution of the sampler, the volume of the internal cavity ranges from 120 ml to 150 ml.

[0016] As an alternative technical solution of the sampler, the temporary storage container is made of a transparent material, and at least a graduation line is provided on the temporary storage container at 100 ml.

[0017] As an alternative technical solution of the sampler, the bottom of the temporary storage container is funnel-shaped, and the second pipeline is connected to the lowermost end of the temporary storage container.

[0018] As an alternative technical solution of the sampler, a flexible tube is connected to the top of the temporary storage container. One end of the flexible tube is communicated with the internal cavity, and the other end forms the connecting part and is used for sleeving the inlet and outlet pipelines of the syringe.

[0019] As an alternative technical solution of the sampler, the outer side wall contour of the temporary storage container is cylindrical; and / or,

[0020] The internal cavity is cylindrical.

[0021] The beneficial effects of the present utility model are as follows:

[0022] The present utility model provides a sampler, which includes a temporary storage container. The temporary storage container has an internal cavity inside and a connecting part communicated with the internal cavity at the top. The connecting part is used for connecting a syringe. The bottom of the temporary storage container is connected with a first pipeline and a second pipeline. The first pipeline and the second pipeline are both provided with one-way valves, so that the liquid can only enter the internal cavity through the first pipeline and flow out through the second pipeline. When sampling, the end of the first pipeline is placed in a reagent bottle, and the end of the second pipeline is placed in a sampling bottle. The piston handle of the syringe is pulled to reduce the air pressure in the internal cavity, so that the sample in the reagent bottle enters the internal cavity through the first pipeline, and the air pressure in the internal cavity is increased during the process of pushing the piston handle, so that the sample in the internal cavity enters the sample bottle through the second pipeline, thereby completing the sampling. The whole process does not require multiple transfers of the temporary storage container, shortens the sampling time, and improves the sampling efficiency. Description of the Drawings

[0023] Figure 1 It is a schematic assembly structure diagram of the sampler and the syringe in the embodiment of the present utility model.

[0024] In the figure:

[0025] 1000, syringe; 1100, empty cylinder; 1110, inlet and outlet pipeline; 1200, piston handle;

[0026] 100, temporary storage container; 110, internal cavity; 120, scale line;

[0027] 200, first pipeline;

[0028] 300, second pipeline;

[0029] 400, one-way valve;

[0030] 500, flexible pipe. Specific implementation manner

[0031] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0035] As Figure 1 shown, this embodiment provides a sampler for taking out samples from a reagent bottle and placing them in a sample bottle, and can improve the sampling efficiency. The sampler includes a temporary storage container 100, a first pipeline 200, and a second pipeline 300. Among them, the temporary storage container 100 has an internal cavity 110. The top of the temporary storage container 100 has a connection part communicating with the internal cavity 110, and the connection part is used to connect a syringe 1000. Both the first pipeline 200 and the second pipeline 300 are provided at the bottom of the temporary storage container 100 and are both communicated with the internal cavity 110. One-way valves 400 are provided on both the first pipeline 200 and the second pipeline 300. The one-way valve 400 on the first pipeline 200 allows liquid to flow into the internal cavity 110, and the one-way valve 400 on the second pipeline 300 allows liquid to flow out of the internal cavity 110. During sampling, the end of the first pipeline 200 is placed in the reagent bottle, and the end of the second pipeline 300 is placed in the sampling bottle. The piston handle 1200 of the syringe 1000 is pulled to reduce the air pressure in the internal cavity 110, so that the sample in the reagent bottle enters the internal cavity 110 through the first pipeline 200, and the air pressure in the internal cavity 110 increases during the process of pushing the piston handle 1200, so that the sample in the internal cavity 110 enters the sample bottle through the second pipeline 300, thus completing the sampling. The whole process does not require multiple transfers of the temporary storage container 100, shortening the sampling time and improving the sampling efficiency.

[0036] Considering that the liquid level of the reagent bottle will decrease during the sampling process, in order to ensure that the sampling can be successfully completed, the length of the first pipeline 200 is 40 cm to 60 cm. This setting makes the first pipeline 200 placed in the reagent bottle. When 100 ml of samples are extracted, the end of the first pipeline 200 is still below the liquid level, avoiding tilting the reagent bottle and improving the convenience and speed of sampling. In other embodiments, the length of the first pipeline 200 can be determined according to the diameter of the reagent bottle and the volume of the samples taken out, as long as it is ensured that the end of the first pipeline 200 is still below the liquid level after the samples are taken out.

[0037] In some embodiments, the length of the second pipeline 300 is 20 cm to 30 cm. With the second pipeline 300 set to the above length, it only needs to be able to smoothly place the end of the second pipeline 300 into the mouth of the sample bottle, without considering the liquid level height. The shorter length of the second pipeline 300 is beneficial to saving materials.

[0038] In some embodiments, a bracket (not shown in the figure) can also be provided, and the bracket is used to carry the temporary storage container 100. During use, the bracket is placed between the reagent bottle and the sample bottle, and the operator only needs to control the syringe 1000, which reduces the operation difficulty and improves the convenience and efficiency of sampling.

[0039] To ensure the suction and injection efficiency of the sample, in some embodiments, the inner diameter of at least the second pipeline 300 among the first pipeline 200 and the second pipeline 300 is 4 mm to 6 mm. Exemplarily, the inner diameters of the first pipeline 200 and the second pipeline 300 are both 4 mm to 6 mm. In other embodiments, the inner diameter of the first pipeline 200 is 2 mm to 4 mm to minimize the size as much as possible and reduce the sample loss that cannot be discharged inside. Of course, in other embodiments, after the sample in the inner cavity 110 is discharged into the sample bottle, the first pipeline 200 can be taken out of the reagent bottle, and then the piston handle 1200 is pulled again to make the sample in the first pipeline 200 enter the inner cavity 110, and the piston handle 1200 is pushed again to make the sample enter the sample bottle.

[0040] To avoid the outside of the one-way valve 400 being contaminated with the sample during the sampling process, causing unnecessary waste, in some embodiments, the distances between the two one-way valves 400 and the temporary storage container 100 are the same, and the distance ranges are both between 1 cm and 3 cm. This setting makes it so that when the first pipeline 200 and the second pipeline 300 are respectively placed in the reagent bottle and the sample bottle, both one-way valves 400 are located above the liquid level and do not contact the sample.

[0041] When facing a sampling volume of 100 ml, to improve the sampling efficiency, in some embodiments, the volume of the inner cavity 110 is greater than 100 ml. Under this setting, the volume of the syringe 1000 also needs to be greater than 100 ml, and the sampling can be completed at one time, greatly improving the sampling efficiency. Preferably, the volume range of the inner cavity 110 is between 120 ml and 150 ml.

[0042] When the volume of the inner cavity 110 is greater than 100 ml, to ensure the sampling accuracy, in this embodiment, the temporary storage container 100 is made of a transparent material, and at least a scale line 120 is provided on the temporary storage container 100 at 100 ml. The scale line 120 is located at 100 ml, and the sampling volume can be accurately obtained. In some embodiments, the position of the scale line 120 can be determined according to the volume of the first pipeline 200, so that the volume when the sample in the inner cavity 110 reaches the position of the scale line 120 and the volume of the sample in the first pipeline 200 sum up to 100 ml. In some embodiments, the temporary storage container 100 is made of plastic or glass.

[0043] Since the sample is discharged from the second pipeline 300 and finally flows into the sample bottle, in order to avoid excessive residue in the temporary storage container 100, which may lead to inaccurate sample volume, in some embodiments, the bottom of the temporary storage container 100 is funnel-shaped, and the second pipeline 300 is connected to the lowermost end of the temporary storage container 100. This setting enables the sample to converge to the bottom of the temporary storage container 100 as much as possible, so that it can all flow out through the second pipeline 300, reducing residue as much as possible and improving the sampling accuracy.

[0044] In some embodiments, a flexible tube 500 is connected to the top of the temporary storage container 100. One end of the flexible tube 500 communicates with the internal cavity 110, and the other end forms a connection portion for sleeving the inlet and outlet pipeline 1110 of the syringe 1000. The syringe 1000 includes a barrel 1100 and a piston rod 1200 disposed inside the barrel 1100. A piston is provided at the front end of the piston rod 1200, and an inlet and outlet pipeline 1110 is provided at the front end of the barrel 1100. This setting makes the connection between the syringe 1000 and the temporary storage container 100 more convenient, and the position requirement for the syringe 1000 during use is lower. The angle of the syringe 1000 can be changed, improving the comfort of use. In some embodiments, the length of the flexible tube 500 is 3 cm to 5 cm. In one embodiment, the flexible tube 500 can be a plastic tube.

[0045] In other embodiments, a communication hole can be directly opened at the upper end of the temporary storage container 100 to form a connection portion, and the inlet and outlet pipeline 1110 can be inserted into the communication hole to communicate the internal cavity of the barrel 1100 and the internal cavity 110.

[0046] Since the temporary storage container 100 needs to be cleaned after sampling, in order to reduce the cleaning difficulty, in some embodiments, the outer wall contour of the temporary storage container 100 is cylindrical. The internal cavity 110 is cylindrical. This setting makes the external and internal corners of the temporary storage container 100 less, reducing the probability of sample adhesion and facilitating cleaning.

[0047] During use, multiple temporary storage containers 100 and one syringe 1000 can be prepared. During sampling, one syringe 1000 is successively matched with multiple temporary storage containers 100 to complete the transfer of multiple samples. After completing the sampling of the same batch, the multiple temporary storage containers 100 are cleaned and dried for subsequent use.

[0048] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A sampler, characterized in that, Including: A temporary storage container (100), the temporary storage container (100) having an internal cavity (110), the top of the temporary storage container (100) having a connection portion communicating with the internal cavity (110), the connection portion being for connecting a syringe (1000); A first pipeline (200) and a second pipeline (300), the first pipeline (200) and the second pipeline (300) both being provided at the bottom of the temporary storage container (100) and both communicating with the internal cavity (110), one-way valves (400) being provided on both the first pipeline (200) and the second pipeline (300), the one-way valve (400) on the first pipeline (200) allowing liquid to flow into the internal cavity (110), and the one-way valve (400) on the second pipeline (300) allowing liquid to flow out of the internal cavity (110).

2. The sampler according to claim 1, characterized in that, The length of the first pipeline (200) is 40 cm to 60 cm; and / or, The length of the second pipeline (300) is 20 cm to 30 cm.

3. The sampler according to claim 2, characterized in that, The inner diameter of at least the second pipeline (300) among the first pipeline (200) and the second pipeline (300) is 4 mm to 6 mm.

4. The sampler according to claim 2, characterized in that, The distances between the two one-way valves (400) and the temporary storage container (100) are the same, and the distance ranges are both between 1 cm and 3 cm.

5. The sampler according to claim 1, characterized in that, The volume of the internal cavity (110) is greater than 100 ml.

6. The sampler according to claim 5, characterized in that, The volume range of the internal cavity (110) is between 120 ml and 150 ml.

7. The sampler according to claim 5, characterized in that, The temporary storage container (100) is made of a transparent material, and at least a scale line (120) is provided on the temporary storage container (100) at 100 ml.

8. The sampler according to any one of claims 1-7, characterized in that, The bottom of the temporary storage container (100) is funnel-shaped, and the second pipeline (300) communicates with the lowermost end of the temporary storage container (100).

9. The sampler according to any one of claims 1-7, characterized in that, A flexible pipe (500) is connected to the top of the temporary storage container (100), one end of the flexible pipe (500) communicating with the internal cavity (110), and the other end forming the connection portion and being for sleeving the inlet and outlet pipe (1110) of the syringe (1000).

10. The sampler according to any one of claims 1-7, characterized in that, The outer sidewall profile of the temporary storage container (100) is cylindrical; and / or, The internal cavity (110) is cylindrical.

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