Centrifugal tube convenient for sampling

Abstract

The utility model discloses a centrifugal tube convenient for sampling, and relates to the technical field of containers or utensils for laboratories. Comprising a centrifugal tube, an extrusion device is arranged on the centrifugal tube, the extrusion device comprises a base, a rubber sliding block and two push blocks, two sliding rod grooves are formed in the outer wall of the base, sliding rods are slidably connected into the two sliding rod grooves, and the two push blocks are fixedly connected with one ends of the corresponding sliding rods respectively; in the extrusion device, a push block is pushed to move upwards to drive a sliding rod to move upwards and drive a connecting rod to move upwards at the same time, then the connecting rod moves upwards to drive a reset spring to contract and drive a rubber sliding block to move upwards to drive an extraction solvent to move upwards, and meanwhile a protective cover is taken down from a sampling pipe; then the extraction solvent is extruded out of the sampling tube, so that the extraction solvent is convenient to sample, a worker does not need to use a sampling tool, meanwhile, the workload of the worker is reduced, and the sampling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of containers or utensils used in laboratories, in particular to a centrifuge tube convenient for sampling. Background Art

[0002] In the field of food and chemical testing, centrifuge tubes are more commonly used sample pretreatment containers, and centrifuge tube sampling is also a common experimental operation. There are many types of centrifuge tubes, which can be divided into microcentrifuge tubes and ordinary centrifuge tubes according to size; according to material, there are plastic centrifuge tubes and glass centrifuge tubes, etc. In addition, there are different classifications according to shape, capacity and purpose, such as round-bottom centrifuge tubes, conical-bottom centrifuge tubes, cell culture centrifuge tubes, PCR centrifuge tubes, etc.

[0003] The existing centrifuge tube sampling is to transfer an appropriate amount of sample into the centrifuge tube using sampling tools such as a sampling spoon. However, when the sample volume is large, in order to ensure that the sample is not contaminated, the staff is required to repeatedly clean the sampling tools, which increases the workload of the staff and reduces the sampling efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a centrifuge tube for easy sampling, which can solve the problem that centrifuge tube sampling is to transfer an appropriate amount of sample into the centrifuge tube using sampling tools such as a sampling spoon, but when the sample volume is large, in order to ensure that the sample is not contaminated, the staff is required to repeatedly clean the sampling tools, which increases the workload of the staff and reduces the efficiency of sampling.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifuge tube for convenient sampling, comprising a centrifuge tube, on which an extrusion device is arranged;

[0006] The extrusion device includes a base, a rubber slider and two push blocks;

[0007] Wherein, the outer wall of the base is provided with two sliding rod grooves;

[0008] Wherein, the two sliding rod grooves are internally slidably connected with sliding rods;

[0009] Wherein, the two push blocks are respectively fixedly connected to one end of the corresponding sliding rod;

[0010] Wherein, a sealing gasket groove is provided on the outer wall of the rubber slider;

[0011] Wherein, a sealing gasket is installed inside the sealing gasket groove;

[0012] Wherein, a connecting rod is arranged inside the base;

[0013] Wherein, the ends of the two sliding rods away from the push block are fixedly connected to the outer wall of the connecting rod;

[0014] Wherein, the rubber slider is slidably connected inside the centrifuge tube;

[0015] Wherein, the upper opening of the base contacts the lower outer wall of the centrifuge tube;

[0016] One end of the connecting rod away from the base slides and extends to the inside of the centrifuge tube and is fixedly connected to the lower surface of the rubber slider.

[0017] Preferably, four connecting blocks are fixedly connected to the outer wall of the upper end of the base;

[0018] Among them, one end of the four connecting blocks close to the centrifuge tube is fixedly connected to the outer wall of the centrifuge tube.

[0019] Preferably, a return spring is sleeved on the outer wall of the connecting rod;

[0020] Wherein, two ends of the return spring are fixedly connected to the outer wall of the connecting rod and the outer wall of the lower end of the centrifuge tube respectively.

[0021] Preferably, a sampling tube is fixedly connected to the outer wall of the upper end of the centrifuge tube;

[0022] Wherein, a protective cover is installed at one end of the sampling tube away from the centrifuge tube.

[0023] Preferably, the outer wall of the upper end of the centrifuge tube is threadedly connected with a tube cap.

[0024] Preferably, the interior of the sampling tube is connected to the interior of the centrifuge tube;

[0025] Wherein, a scale plate is installed on the outer wall of the centrifuge tube;

[0026] The outer wall of the sealing gasket is in contact with the inner wall of the centrifuge tube.

[0027] Compared with the prior art, the beneficial effects of the utility model are:

[0028] (1) The centrifugal tube for convenient sampling is driven by the extrusion device to push the push block upward to drive the sliding rod upward and the connecting rod upward, and then the connecting rod moves upward to drive the return spring to contract and drive the rubber slider upward to drive the extraction solvent upward and remove the protective cover from the sampling tube, and then the extraction solvent is squeezed out from the inside of the sampling tube, so that it is convenient to extract the solvent sampling, avoids the staff from using sampling tools, and reduces the workload of the staff and improves the sampling efficiency.

[0029] (2) The centrifuge tube for convenient sampling can squeeze out the corresponding extraction solvent by observing the scale plate, which can help the staff to quickly and accurately read the volume of the extraction solvent, thereby avoiding the use of additional measuring tools and improving the efficiency of experimental operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0032] Figure 2 It is a schematic diagram of the structure inside the base of the utility model;

[0033] Figure 3 This is a schematic diagram of the structure inside the centrifuge tube of the utility model;

[0034] Figure 4 It is a schematic diagram of the structure of the outer part of the rubber slider of the utility model.

[0035] Figure numerals: 1, centrifuge tube; 2, tube cover; 3, sampling tube; 4, protective cover; 5, sliding rod groove; 6, push block; 7, base; 8, connecting block; 9, scale plate; 10, reset spring; 11, rubber slider; 12, sealing gasket; 13, connecting rod; 14, sealing gasket groove; 15, sliding rod. DETAILED DESCRIPTION

[0036] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0037] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.

[0038] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] See also Figure 1-4 , the utility model provides a technical solution: a centrifuge tube for convenient sampling, including a centrifuge tube 1;

[0041] The centrifuge tube 1 is provided with an extrusion device;

[0042] The extrusion device includes a base 7, a rubber slider 11 and two push blocks 6. The outer wall of the base 7 is provided with two sliding rod grooves 5. The two sliding rod grooves 5 are slidably connected with sliding rods 15 inside. The two push blocks 6 are respectively fixedly connected to one end of the corresponding sliding rods 15. The outer wall of the rubber slider 11 is provided with a sealing gasket groove 14. The sealing gasket 12 is installed inside the sealing gasket groove 14. A connecting rod 13 is arranged inside the base 7. The ends of the two sliding rods 15 away from the push blocks 6 are fixedly connected to the outer wall of the connecting rod 13. The rubber slider 11 is slidably connected inside the centrifuge tube 1. The upper end opening of the base 7 contacts the lower end outer wall of the centrifuge tube 1. The end of the connecting rod 13 away from the base 7 slides and extends to the inside of the centrifuge tube 1 and is fixedly connected to the lower surface of the rubber slider 11.

[0043] Among them, four connecting blocks 8 are fixedly connected to the upper outer wall of the base 7, and the ends of the four connecting blocks 8 close to the centrifuge tube 1 are fixedly connected to the outer wall of the centrifuge tube 1, and the outer wall of the connecting rod 13 is sleeved with a reset spring 10, and the two ends of the reset spring 10 are respectively fixedly connected to the outer wall of the connecting rod 13 and the lower outer wall of the centrifuge tube 1, and the upper outer wall of the centrifuge tube 1 is fixedly connected to a sampling tube 3, and the end of the sampling tube 3 away from the centrifuge tube 1 is installed with a protective cover 4, the upper outer wall of the centrifuge tube 1 is threadedly connected with a tube cover 2, the interior of the sampling tube 3 is communicated with the interior of the centrifuge tube 1, and the outer wall of the centrifuge tube 1 is installed with a scale plate 9, and the outer wall of the sealing gasket 12 is in contact with the inner wall of the centrifuge tube 1.

[0044] Furthermore, when the device is used, it is started by connecting an external power source, first the tube cover 2 is removed from the centrifuge tube 1, then the extraction solvent is injected into the interior of the centrifuge tube 1, and then the tube cover 2 is closed, and then the extraction solvent is sampled when it is needed.

[0045] Further, the push block 6 is pushed upward to drive the sliding rod 15 upward and the connecting rod 13 upward. Then the connecting rod 13 moves upward to drive the return spring 10 to contract and the rubber slider 11 to move upward. The protective cover 4 is removed from the sampling tube 3 while the extraction solvent is driven upward. Then, the corresponding extraction solvent can be squeezed out by observing the scale plate 9, and then the extraction solvent is squeezed out from the inside of the sampling tube 3.

[0046] By pushing the push block 6 upward in the extrusion device, the sliding rod 15 is moved upward and the connecting rod 13 is moved upward. Then the connecting rod 13 moves upward, drives the return spring 10 to contract, drives the rubber slider 11 to move upward, drives the extraction solvent upward, and removes the protective cover 4 from the sampling tube 3. Then the extraction solvent is squeezed out from the inside of the sampling tube 3, which facilitates the sampling of the extraction solvent and avoids the staff using sampling tools. At the same time, it reduces the workload of the staff and improves the sampling efficiency. By observing the scale plate 9 to extrude the corresponding extraction solvent, the staff can quickly and accurately read the volume of the extraction solvent, thereby avoiding the use of additional measuring tools and improving the efficiency of experimental operations.

[0047] Working principle: first remove the tube cover 2 from the centrifuge tube 1, then inject the extraction solvent into the inside of the centrifuge tube 1, and then close the tube cover 2. When the extraction solvent needs to be sampled, push the push block 6 to move upward to drive the sliding rod 15 to move upward while driving the connecting rod 13 to move upward. Then the connecting rod 13 moves upward to drive the return spring 10 to contract while driving the rubber slider 11 to move upward. While driving the extraction solvent upward, remove the protective cover 4 from the sampling tube 3. Then, the corresponding extraction solvent can be squeezed out by observing the scale plate 9, and then the extraction solvent is squeezed out from the inside of the sampling tube 3.

[0048] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A centrifuge tube for convenient sampling, comprising a centrifuge tube (1), characterized in that: The centrifuge tube (1) is provided with an extrusion device; The extrusion device comprises a base (7), a rubber slider (11) and two push blocks (6); Wherein, the outer wall of the base (7) is provided with two sliding rod grooves (5); Wherein, the two sliding rod grooves (5) are internally slidably connected with sliding rods (15); Wherein, the two push blocks (6) are respectively fixedly connected to one end of the corresponding sliding rod (15); Wherein, a sealing gasket groove (14) is provided on the outer wall of the rubber slider (11); Wherein, a sealing gasket (12) is installed inside the sealing gasket groove (14); Wherein, a connecting rod (13) is arranged inside the base (7); Wherein, the ends of the two sliding rods (15) away from the push block (6) are fixedly connected to the outer wall of the connecting rod (13); Wherein, the rubber slider (11) is slidably connected inside the centrifuge tube (1); The upper opening of the base (7) is in contact with the outer wall of the lower end of the centrifuge tube (1); The end of the connecting rod (13) away from the base (7) slides and extends into the interior of the centrifuge tube (1) and is fixedly connected to the lower surface of the rubber slider (11).

2. A centrifuge tube for convenient sampling according to claim 1, characterized in that: Four connecting blocks (8) are fixedly connected to the outer wall of the upper end of the base (7); Wherein, the ends of the four connecting blocks (8) close to the centrifuge tube (1) are all fixedly connected to the outer wall of the centrifuge tube (1).

3. A centrifuge tube for convenient sampling according to claim 1, characterized in that: The outer wall of the connecting rod (13) is sleeved with a return spring (10); Wherein, the two ends of the return spring (10) are fixedly connected to the outer wall of the connecting rod (13) and the outer wall of the lower end of the centrifuge tube (1) respectively.

4. A centrifuge tube for convenient sampling according to claim 1, characterized in that: The upper outer wall of the centrifuge tube (1) is fixedly connected with a sampling tube (3); Wherein, a protective cover (4) is installed at one end of the sampling tube (3) away from the centrifuge tube (1).

5. A centrifuge tube for convenient sampling according to claim 1, characterized in that: The outer wall of the upper end of the centrifuge tube (1) is threadedly connected with a tube cover (2).

6. A centrifuge tube for convenient sampling according to claim 4, characterized in that: The interior of the sampling tube (3) is communicated with the interior of the centrifuge tube (1); Wherein, a scale plate (9) is installed on the outer wall of the centrifuge tube (1); The outer wall of the sealing gasket (12) is in contact with the inner wall of the centrifuge tube (1).

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