Detachable centrifugal equipment suitable for chromatographic sample bottle

Abstract

The utility model provides detachable centrifugal equipment suitable for chromatography sample bottles, which relates to the technical field of centrifugation and comprises a protective cover and a base arranged on the bottom wall of the protective cover, a placing frame is rotatably arranged at the upper end of the base, a placing hole is annularly formed in the top wall of the placing frame, and the placing hole is communicated with the protective cover. An assembly part is detachably arranged in each placing hole; the assembly part comprises an upper pipe body and a lower pipe body, the upper pipe body and the lower pipe body are integrally arranged, the lower pipe body is arranged in an opening and closing mode, and a clamping opening is formed in the inner wall of the lower pipe body. According to the utility model, a plurality of sample bottles can be sequentially stacked in the upper tube body, so that the number of the sample bottles can be increased, and the requirement of analyzing and detecting a large number of samples can be met; the lower pipe body is folded inwards by rotating the threaded sleeve to clamp and fix the sample bottle, so that the sample bottle is clamped and can be taken out from the bottom of the placement frame, particles in a sample can be prevented from being mixed with liquid again due to vibration force generated by upwards extracting the sample bottle, and the sample centrifugation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugation, in particular to a detachable centrifugal device suitable for chromatographic sample bottles. Background Art

[0002] Chromatographic sample bottles are very common consumables for chromatography and mass spectrometry analysis. Some samples contained in sample bottles may evaporate over time, causing the sample to stick to the bottle cap or bottle wall, resulting in inaccurate test results. In addition, some samples to be tested cannot be filtered multiple times due to the small sample volume, and solid particles are suspended in the sample bottle, thus affecting the test results. Therefore, a centrifugal device is used for the sample bottle, which generates centrifugal force through rotation to achieve the purpose of separating particles from liquid.

[0003] For example, the prior art application number CN202320680266.X is a centrifuge rotor adapted for mass spectrometry sample bottles, comprising a sample placement rack and a sample protection rack, wherein the sample protection rack is coaxially connected to the outside of the sample placement rack, a mounting hole connected to the centrifuge is provided in the middle of the sample placement rack, and the sample placement rack is provided with multiple groups of sample placement holes evenly spaced along the circumference, and the sample bottle can be placed in the sample placement hole, and the diameter of the sample placement hole is greater than or equal to the bottle body diameter of the sample bottle and smaller than the bottle bottom diameter of the sample bottle; after the sample bottle is placed in the sample placement hole, the sample protection rack is correspondingly provided on the outside of the sample bottle;

[0004] Through actual use, the above scheme is known to us that it mainly inserts the sample bottle into the placement hole until it touches the bottle cap of the sample bottle, which can drive each sample bottle to rotate for centrifugation; however, it is found during use that the space of the placement hole is limited and cannot meet the needs of analyzing and testing a large number of samples. At the same time, when the sample bottle is pulled upward to be taken out, it is easy to cause the centrifuged sample to be subjected to large vibration and re-mixing, thereby reducing the separation effect; for this reason, we have improved the above existing technology based on actual usage. Utility Model Content

[0005] In view of the problem that the space of the above-mentioned placement holes is limited and cannot meet the needs of analyzing and detecting a large number of samples, and when the sample bottle is pulled upward to be taken out, it is easy to cause the centrifuged sample to be subjected to large vibration and re-mixing, thereby reducing the separation effect, the utility model aims to provide a detachable centrifuge device suitable for chromatographic sample bottles.

[0006] To achieve this technical purpose, the solution of the utility model is: a detachable centrifugal device suitable for chromatographic sample bottles, comprising a protective cover and a base arranged on the bottom wall of the protective cover, a placement rack being rotatably provided on the upper end of the base, a placement hole being annularly provided in the top wall of the placement rack, and an assembly part being detachably provided in each of the placement holes; the assembly part comprises an upper tube body and a lower tube body, the upper tube body and the lower tube body being integrally arranged and the lower tube body being open and closed, and a bayonet being provided on the inner wall of the lower tube body for clamping the sample bottle.

[0007] Furthermore, a power mechanism is provided between the base and the placement rack. The power mechanism is a motor and a connecting shaft, and the upper end of the connecting shaft is fixed to the placement rack for driving the placement rack to rotate.

[0008] Furthermore, the top wall of the placement rack is inclined to increase centrifugal force.

[0009] Furthermore, the outer surfaces of the upper tube body and the lower tube body are both provided with threads, the upper end thread of the upper tube body is provided with a threaded cover, and the outer peripheral thread of the lower tube body is provided with a threaded sleeve for retracting the lower tube body.

[0010] Furthermore, a magnet is fixed to the periphery of the upper tube body, the lower surface of the magnet is attracted to the edge of the placement hole, and the upper surface of the threaded sleeve is pressed against the inner top wall of the placement rack to fix the placement rack.

[0011] Furthermore, the lower tube body is conical and is composed of a plurality of claws in a ring shape for clamping the bottle mouth of the sample bottle;

[0012] The utility model can stack multiple sample bottles in the upper tube body in sequence, and the number of sample bottles can be increased, so as to meet the needs of analyzing and detecting a large number of samples; the lower tube body clamps and fixes the sample bottles by rotating the threaded sleeve inward, so as to achieve clamping of the sample bottles. In this way, after centrifugation is completed, the sample bottles can be taken out from the bottom of the placement rack, and the vibration force generated by pulling the sample bottles upwards can be avoided, which may cause the particles in the sample to mix with the liquid again, thereby improving the effect of sample centrifugation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 A front view schematic diagram of the internal structure of the utility model;

[0015] Figure 3 Schematic diagram of the utility model assembly exploded;

[0016] Figure 4 Another perspective diagram of the internal structure of the utility model;

[0017] Figure 5 For this utility model Figure 1 Enlarged diagram of point A in the middle

[0018] Figure 6 This is a schematic diagram of the clamping connection between the lower tube body and the sample bottle of the utility model.

[0019] Among them, 1. Base; 2. Placement rack; 3. Power mechanism; 4. Placement hole; 5. Assembly parts; 51. Upper tube body; 52. Lower tube body; 53. Threaded cover; 54. Magnet; 55. Threaded sleeve; 56. Thread; 57. Bayonet; 6. Sample bottle; 7. Protective cover; 8. Cover plate. DETAILED DESCRIPTION

[0020] The utility model of this application is further described in detail below with reference to the accompanying drawings and specific embodiments. In order to clearly and completely describe the technical solution, the following embodiments are selected for illustration; other embodiments obtained based on the content recorded in this application without creative work are all within the scope of protection of this utility model.

[0021] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top / bottom", etc., or the like, are based on the terms or the like as shown in the accompanying drawings. They are only for the purpose of clearly describing the present embodiment, and do not indicate or imply that the device or element referred to must have a specific orientation. Therefore, they should not be understood as limiting the present application.

[0022] like Figures 1 to 6As shown, an embodiment of the present invention provides a detachable centrifugal device suitable for chromatographic sample bottles, including a protective cover 7 and a base 1 arranged on the bottom wall of the protective cover 7. The top and side of the protective cover 7 are both provided with cover plates 8 by hinges, and the front side of the protective cover 7 is also provided with a touch screen for operating the device; a placement rack 2 is rotatably provided on the upper end of the base 1, and a placement hole 4 is provided in an annular manner on the top wall of the placement rack 2. Each placement hole 4 is detachably provided with an assembly part 5; the assembly part 5 includes an upper tube body 51 and a lower tube body 52. ​​The upper tube body 51 and the lower tube body 52 are integrally provided, and the lower tube body 52 is an open and close setting. The inner wall of the lower tube body 52 is provided with a bayonet 57. A power mechanism 3 is provided between the base 1 and the placement rack 2. The power mechanism 3 is a motor and a connecting shaft, and the upper end of the connecting shaft is fixed to the placement rack 2. The motor is fixed in the base 1, and a power switch and a power socket are also provided on the upper surface of the base 1; the output end of the motor is fixed to the connecting shaft to drive the placement rack 2 to rotate. Before use, remove the threaded sleeve 55 and insert the assembly part 5 into the placement hole 4 until the magnet 54 is attracted to the outer edge of the placement hole 4. Then, the samples are placed in the upper tube body 51 of the assembly part 5 or clamped by the lower tube body 52 in turn. Then, the motor is started to drive the placement rack 2 to rotate through the connecting shaft to centrifuge the sample in the sample bottle 6; the lower tube body 52 is conical and is composed of several claw rings. The lower tube body 52 can be made of composite material or elastic plastic, and the number of claws is 3-6; the bottom of each claw of the lower tube body 52 is initially expanded outward to place the sample bottle 6; the top wall of the placement rack 2 is inclined to increase the centrifugal force. Multiple sample bottles 6 can be stacked in the upper tube 51 in sequence. The length of the upper tube 51 is 10-16 cm. The number of sample bottles 6 can be increased to meet the needs of analyzing and testing a large number of samples. At the same time, during use, the claws in the lower tube 52 surround the bottle mouths of the sample bottles 6 and clamp the sample bottles 6 through the clamping holes 57.

[0023] refer to Figure 3 The outer surfaces of the upper tube 51 and the lower tube 52 are both provided with threads 56. The upper end of the upper tube 51 is threadedly provided with a threaded cap 53, and the outer peripheral thread of the lower tube 52 is threadedly provided with a threaded sleeve 55. The threaded sleeve 55 is rotated through the thread 56 to move the threaded sleeve 55 up and down, causing the outwardly expanded lower tube 52 to be retracted inwardly to form a cone shape; when the threaded sleeve 55 is rotated downward, the lower tube 52 is retracted inwardly to clamp and fix the sample bottle 6, thus achieving the clamping of the sample bottle 6. In this way, after the centrifugation is completed, the threaded sleeve 55 can be rotated in the opposite direction again to move upward, and the lower tube 52 can be directly separated from the sample bottle 6 by expanding outward. The sample bottle 6 can then be taken out from the bottom of the placement rack 2, providing convenience for taking out the sample bottle 6.

[0024] refer to Figure 5A magnet 54 is fixed to the periphery of the upper tube body 51, and the lower surface of the magnet 54 is attracted to the edge of the placement hole 4. The edge of the placement hole 4 is an iron sheet fixed by rivets, and the upper surface of the threaded sleeve 55 is tightly fitted with the inner top wall of the placement frame 2 to achieve the fixation of the magnet 54 to the upper tube body 51.

[0025] Working principle: After removing the threaded sleeve 55 before use, insert the assembly part 5 into the placement hole 4 until the magnet 54 is attracted to the outer edge of the placement hole 4. Then, place the samples in the upper tube 51 of the assembly part 5 or clamp them in the lower tube 52. Then, start the motor to drive the placement rack 2 to rotate through the connecting shaft to centrifuge the sample in the sample bottle 6.

[0026] The upper tube body 51 can be used to stack multiple sample bottles 6 in sequence, which can increase the number of sample bottles 6 that can be placed, and can meet the needs of analyzing and testing a large number of samples. At the same time, during use, the claws in the lower tube body 52 surround the bottle mouth of the sample bottle 6 and clamp the sample bottle 6 through the bayonet 57. Then, the threaded sleeve 55 is rotated to move downward to make the lower tube body 52 retract inward to clamp and fix the sample bottle 6, thereby clamping the sample bottle 6. After the centrifugation is completed, the threaded sleeve 55 can be rotated in the opposite direction to move upward again, and the lower tube body 52 can be expanded outward to be directly separated from the sample bottle 6, and the sample bottle 6 can be taken out from the bottom of the placement rack 2, which can avoid the vibration force generated by pulling the sample bottle 6 upward, which causes the particles in the sample to mix with the liquid again, thereby improving the effect of sample centrifugation.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent replacements and improvements made to the above embodiments based on the technical essence of the present invention should be included in the scope of protection of the technical solution of the present invention.

Claims

1. A detachable centrifugal device suitable for chromatographic sample bottles, comprising a protective cover (7) and a base (1) arranged on the bottom wall of the protective cover (7), wherein a placement rack (2) is rotatably arranged on the upper end of the base (1), and a placement hole (4) is annularly arranged in the top wall of the placement rack (2), characterized in that: Each placement hole (4) is provided with a detachable assembly part (5); The assembly part (5) comprises an upper tube body (51) and a lower tube body (52). The upper tube body (51) and the lower tube body (52) are integrally arranged, and the lower tube body (52) is openable and closable. The inner wall of the lower tube body (52) is provided with a bayonet (57).

2. The detachable centrifugal device suitable for chromatographic sample bottles according to claim 1, characterized in that: A power mechanism (3) is provided between the base (1) and the placement rack (2); the power mechanism (3) comprises a motor and a connecting shaft, and the upper end of the connecting shaft is fixed to the placement rack (2).

3. The detachable centrifugal device suitable for chromatographic sample bottles according to claim 1, characterized in that: The top wall of the placement rack (2) is arranged in an inclined manner.

4. The detachable centrifugal device suitable for chromatographic sample bottles according to claim 1, characterized in that: The outer surfaces of the upper tube body (51) and the lower tube body (52) are both provided with threads (56); the upper end thread of the upper tube body (51) is provided with a threaded cover (53); the outer peripheral thread of the lower tube body (52) is provided with a threaded sleeve (55).

5. The detachable centrifugal device suitable for chromatographic sample bottles according to claim 4, characterized in that: A magnet (54) is fixed to the periphery of the upper tube body (51), the lower surface of the magnet (54) is attracted to the edge of the placement hole (4), and the upper surface of the threaded sleeve (55) is pressed against the inner top wall of the placement frame (2).

6. The detachable centrifugal device suitable for chromatographic sample bottles according to claim 1, characterized in that: The lower tube body (52) is arranged in a conical shape and is composed of a plurality of claw rings.

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