CN218537551U - Uncapping-free liquid sample storing and taking integrated tube - Google Patents

Abstract

The utility model relates to a sampling tube field especially relates to an exempt from to uncap integrative pipe of liquid sample access, including the inside sample storage box that holds the liquid sample cavity that has, the top intercommunication of sample storage box has a sample pipe, and the inside of sample storage box has the pipe, and the deformation bag is connected to the top surface that sample storage box was worn out to the top mouth of pipe, the utility model discloses a sample storage box, pipe, deformation bag inner chamber link up, and the user presses down the deformation bag, makes its inside gas outgoing sample storage box, and tipping arrangement makes out the sample pipe and inserts in the sample liquid, loosens again and warp the bag and resets, makes the interior negative pressure that forms of sample storage box be used for the imbibition, when the equipment upset is downward, can discharge the sample liquid in the sample storage box through pressing down the deformation bag, need not to open sample storage box and just can carry out the getting, arranging of sample liquid, and equipment can directly carry out the constant volume to sample liquid under being in vertical state in addition, the simple operation.

Description

An integrated tube for storing and taking liquid samples without taking off the cap

technical field

The utility model relates to the field of sampling tubes, in particular to a cap-free storage and retrieval integrated tube for liquid samples.

Background technique

Sampling tubes are widely used in medicine, chemical industry, biology and other fields for quantitative sampling of liquids, and then for sampling research and processing. Traditional sampling tubes have pipes for conducting samples and components for absorbing samples.

The existing patent document CN205262778U discloses a sampling tube. The device includes a straight tube, a sample inlet and a sample outlet arranged at both ends of the straight tube, and a cap is detachably arranged at the sample outlet. There is a baffle to close the straight tube, the baffle is connected in the straight tube by a torsion spring and the baffle can only turn to one end of the cap or return to the original shape; the sampling tube is set as a straight tube with a large mouth, and the sample is easy to enter , when the sampling tube is inserted into the sample, the baffle turns to the direction of the cap to open the straight tube, and the sample enters the straight tube. When the sampling tube is pulled out, due to the restoring force of the torsion spring, the baffle closes the straight tube, and the sample will not Leakage, when it is necessary to remove the sample, open the cap.

The existing sampling tube generally has a cap, which needs to be opened to discharge the sample when taking out the sample, which is inconvenient to operate, and it is inconvenient to set the volume of the sampling tube.

Utility model content

The purpose of this utility model is to solve the following problems in the prior art: the existing sampling tube generally has a cap, and the cap needs to be opened to discharge the sample when the sample is taken out, which is inconvenient to operate, and it is inconvenient to set the volume of the sampling tube.

In order to solve the problems existing in the prior art, the utility model provides a liquid sample storage and retrieval integrated tube without taking off the cover, which includes a sample storage box with a cavity for accommodating liquid samples inside, and a sample outlet tube connected to the top of the sample storage box. There is a conduit inside the sample box, and the top of the conduit passes through the top surface of the sample storage box to connect to the deformable capsule. When sampling, the hand presses the deformable capsule, and the gas in the deformable capsule is introduced into the sample storage box through the conduit, and then discharged through the sample outlet tube. , then turn over the sample storage box so that the sample outlet tube is in contact with the sample liquid vertically downward, loosen the deformable capsule to expand and reset, the gas in the sample storage box is introduced into the deformable capsule through the catheter, and the air pressure in the sample storage box is reduced, so that the sample The liquid is sucked into the sample storage box from the sample outlet tube, and the sample storage box is turned upside down for constant volume. When the sample is discharged, the sample storage box is turned down, the liquid in the sample storage box is at the bottom, and the cavity is at the top. The internal gas is introduced into the upper cavity through the catheter, and the air pressure in the cavity increases to make the sample liquid discharge from the sample outlet tube, and the deformation capsule is released to expand and reset, so that the gas in the top cavity of the sample storage box is introduced into the deformation capsule through the catheter. The external air is introduced into the sample storage box through the sample outlet tube and suspended to the upper part, and the deformation capsule is continuously pressed to realize continuous discharge of the sample liquid.

Preferably, the deformation capsule is made of a soft elastic film, the interior of the deformation capsule has a cavity, and the catheter communicates with the cavity of the deformation capsule, which is used to press the deformation capsule to deform the air inside to lead into the sample storage box or absorb The air in the sample storage box is used to adjust the air pressure in the sample storage box to discharge or inhale the sample liquid from the sample storage box.

Preferably, the deformation capsule is inclined to the side away from the sample discharge tube, so as to increase the gap between the deformation capsule and the sample discharge tube, so as to facilitate hand operation of the deformation capsule when sucking and discharging the sample liquid.

Preferably, the sample outlet pipe is a conical pipe, and the area of the port where the sample outlet pipe communicates with the sample storage box is larger than the area of the free port, so that when the sample storage box is turned down, the sample liquid will not be automatically discharged in the non-operation state.

Preferably, the bottom end of the conduit is located at the lower part of the cavity of the sample storage box. When the sample storage box is turned down, the inner end of the conduit is in contact with the cavity inside the sample storage box for conducting the deformation capsule and the sample storage box. The air pressure in the upper cavity prevents the sample liquid from entering the catheter.

Preferably, the sample storage box includes a box body with an opening at the top, a box cover is threadedly connected to the opening of the box body, the sample outlet pipe and the conduit are connected to the box cover, and a closed sample storage space is formed by the box body and the box cover , followed by opening the lid to facilitate cleaning of the storage cavity.

Preferably, the outer wall of the edge of the lid is evenly distributed with vertical concave grooves to increase the friction coefficient of the edge of the lid and facilitate the connection or separation of the rotating lid and the box body.

Preferably, the box body is made of hard transparent material, and the surface of the box body is provided with scale marks, which is convenient for the user to accurately determine the volume of the sample liquid.

Compared with the related technology, the integrated tube for storage and retrieval of liquid samples provided by the utility model has the following beneficial effects:

In the utility model, the sample storage box, the catheter, and the inner cavity of the deformable capsule are connected. The user presses the deformable capsule to discharge the gas inside the sample storage box, turns over the device to insert the sample tube into the sample liquid, and then releases the deformable capsule to reset. The negative pressure in the sample storage box is used to absorb liquid. When the device is turned down, the sample liquid in the sample storage box can be discharged by pressing the deformation capsule, and the sample liquid can be taken and discharged without opening the sample storage box. Moreover, when the equipment is in a vertical state, the sample liquid can be directly fixed to volume, and the operation is convenient.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a schematic diagram of the overall sectional structure of the utility model.

Labels in the figure: 1. Sample storage box; 11. Box body; 12. Box cover; 2. Sample delivery tube; 3. Deformation capsule; 4. Catheter; 5. Scale mark.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The specific implementation of the utility model is described in detail below in conjunction with specific embodiments.

Embodiment one

As shown in Figure 1-2, a cap-free liquid sample access tube is assembled from the following components:

Assembly instructions: The sample outlet tube 2 is fixed on the top of the sample storage box 1 and communicates with the inside of the sample storage box 1. Insert the conduit 4 from the top surface of the sample storage box 1 to the inside of the sample storage box 1, and the bottom of the conduit 4 Located at the lower part of the inner cavity of the sample storage box 1 , the deformation capsule 3 is fixed to the curved top opening of the communication conduit 4 and is inclined to the side away from the sample outlet tube 2 .

Working principle: when sampling, the hand presses the deformation capsule 3, the gas in the deformation capsule 3 is introduced into the sample storage box 1 through the conduit 4, and then discharged through the sample outlet tube 2, and then the sample storage box 1 is turned so that the sample outlet tube 2 is vertically downward In contact with the sample liquid, loosen the deformable capsule 3 to inflate and reset, the gas in the sample storage box 1 is introduced into the deformable capsule 3 through the conduit 4, the air pressure in the sample storage box 1 is reduced, and the sample liquid is sucked from the sample outlet tube 2 In the sample storage box 1, turn the sample storage box 1 upwards to fix the volume, turn the sample storage box 1 downward when discharging samples, the liquid in the sample storage box 1 is located in the lower part, and the cavity is located in the upper part. The internal gas is introduced into the upper cavity through the conduit 4, and the air pressure in the cavity increases so that the sample liquid is discharged from the sample outlet tube 2, and the deformation bag 3 is released to expand and reset, so that the gas in the top cavity of the sample storage box 1 is introduced through the conduit 4 In the deformation capsule 3, external air is introduced into the sample storage box 1 through the sample outlet tube 2 and suspended to the upper part, and the deformation capsule 3 is continuously pressed to continuously discharge the sample liquid.

Embodiment two

As shown in Figure 1-2, a cap-free liquid sample access tube is assembled from the following components:

Assembly instructions: the sample storage box 1 includes a box body 11 and a box cover 12, the box cover 12 is screwed to the top port of the box body 11, the sample outlet tube 2 is fixed on the top surface of the box cover 12 and communicates with the inside of the box body 11, The conduit 4 is inserted in the box body 11 from the surface of the lid 12, the conduit 4 is sealed and fixed with the lid 12, and the bottom opening of the conduit 4 is positioned at the lower part of the inner cavity of the box body 11, the deformation capsule 3 is fixedly connected to the curved top opening of the conduit 4, and Tilt to the side away from the sample tube 2.

Working principle: when sampling, the hand presses the deformation capsule 3, the gas in the deformation capsule 3 is introduced into the sample storage box 1 through the conduit 4, and then discharged through the sample outlet tube 2, and then the sample storage box 1 is turned so that the sample outlet tube 2 is vertically downward In contact with the sample liquid, loosen the deformable capsule 3 to inflate and reset, the gas in the sample storage box 1 is introduced into the deformable capsule 3 through the conduit 4, the air pressure in the sample storage box 1 is reduced, and the sample liquid is sucked from the sample outlet tube 2 In the sample storage box 1, turn the sample storage box 1 upward, and adjust the volume of the sample liquid according to the scale mark 5. When discharging samples, turn the sample storage box 1 downward, the liquid in the sample storage box 1 is located in the lower part, and the cavity Located on the upper part, press the deformable capsule 3 so that the internal gas is introduced into the upper cavity through the conduit 4, the air pressure in the cavity increases to make the sample liquid discharge from the sample outlet tube 2, loosen the deformable capsule 3 to inflate and reset to make the top of the sample storage box 1 The gas in the cavity is introduced into the deformation capsule 3 through the conduit 4, and the external gas is introduced into the sample storage box 1 through the sample outlet tube 2 and suspended to the upper part, and the deformation capsule 3 is continuously pressed to continuously discharge the sample liquid.

Claims (8)

1. An integrated liquid sample storage and retrieval tube without a cover, including a sample storage box (1) with a cavity for accommodating liquid samples inside, characterized in that, the top of the sample storage box (1) is connected with a sample outlet tube (2) , the interior of the sample storage box (1) has a conduit (4), and the top opening of the conduit (4) passes through the top surface of the sample storage box (1) to connect to the deformation capsule (3). 2. The cap-free liquid sample storage and withdrawal tube according to claim 1, characterized in that, the deformation capsule (3) is made of a soft elastic film, the deformation capsule (3) has a cavity inside, and the catheter (4) communicate with the cavity of the deformation capsule (3). 3. The cap-free storage and withdrawal tube for liquid samples according to claim 2, characterized in that, the deformation capsule (3) is inclined to the side away from the sample outlet tube (2). 4. The cap-free liquid sample storage and retrieval integrated tube according to claim 1, characterized in that, the sample outlet tube (2) is a conical pipeline, and the sample outlet tube (2) and the sample storage box (1) The connected port area is larger than the free port area. 5. The cap-free liquid sample storage and withdrawal integrated tube according to claim 1, characterized in that, the bottom end of the conduit (4) is located at the lower part of the cavity of the sample storage box (1). 6. The cap-free liquid sample storage and withdrawal tube according to claim 5, characterized in that, the sample storage box (1) includes a box body (11) with an opening on the top, and the opening part of the box body (11) A box cover (12) is threadedly connected, and the sample outlet tube (2) and the conduit (4) are all connected with the box cover (12). 7. The cap-free storage and withdrawal tube for liquid samples according to claim 6, characterized in that vertical concave grooves are evenly distributed on the edge outer wall of the box cover (12). 8. The cap-free liquid sample storage and retrieval integrated tube according to claim 6, characterized in that, the box body (11) is made of a hard transparent material, and the surface of the box body (11) is provided with a scale mark ( 5).

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