Test tube assemblies, adapters and centrifugal grinders

Abstract

The present invention discloses a test tube assembly, an adapter and a rotary centrifugal grinder, wherein the test tube assembly comprises: a grinding tube for placing an external grinding sample; a grinder, which is arranged in the grinding tube and is used to grind the grinding sample; an extraction module, which is connected to the grinding tube and is used to extract the fine liquid of the grinding sample after grinding and centrifugation. The present invention can grind and centrifuge the sample at the same time, and automatically extract the fine liquid of the upper sample after grinding and centrifugation, thereby reducing the process, saving operating steps, and greatly improving efficiency. In addition, the present invention also has a good compression and anti-loosening effect, which prevents the equipment from loosening during use and ensures the reliability of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of sample grinding and extraction, in particular to a test tube assembly, an adapter and a rotary centrifugal grinder. Background Art

[0002] According to some special needs, the sample needs to be centrifugally ground before the upper fine liquid of the sample needs to be extracted. However, after the sample is centrifugally ground by the rotary centrifugal grinder, the upper fine liquid after centrifugation often needs to be manually extracted, which easily leads to the problem of inconsistent samples and the inconvenience of manual extraction. In addition, the clamping structure of the adapter used in the existing grinding, centrifugation and other equipment needs to be frequently disassembled and tightened, and the clamping force of the clamping structure is generally not very large. During the high-speed operation of the equipment, it is easy to loosen. If it is over-tightened many times, the tightening structure is easy to be damaged. Summary of the invention

[0003] According to an embodiment of the present invention, there is provided a test tube assembly, comprising:

[0004] Grinding tube, used to place external grinding samples;

[0005] A grinder, which is arranged in the grinding tube and is used for grinding the grinding sample;

[0006] The extraction module is connected to the grinding tube and is used to extract the fine liquid of the ground sample after grinding and centrifugation.

[0007] Furthermore, the grinder comprises grinding balls, which are arranged in the grinding tube and are used for grinding the grinding sample.

[0008] Further, the extraction module comprises:

[0009] An extraction tube, the extraction tube is connected to the grinding tube;

[0010] A test tube cover is inserted into the extraction tube to form an extraction chamber at the bottom of the extraction tube, and the top of the test tube cover is connected to the extraction tube;

[0011] A plurality of extraction ports, which are evenly arranged on the outer wall of the bottom of the extraction tube in a circumferential direction, and the extraction ports are connected with the extraction chamber;

[0012] A plurality of breathing ports are evenly arranged on the top outer wall of the extraction tube for gas circulation;

[0013] The filter film is sleeved on the outer wall of the extraction tube, and covers a plurality of extraction ports and a plurality of breathing ports.

[0014] Further, the sample surface of the ground sample in the grinding tube is located between the extraction port and the breathing port.

[0015] According to another embodiment of the present invention, there is provided an adapter for fixing a test tube assembly, comprising:

[0016] An adapter seat, the adapter seat is provided with at least one test tube sleeve for placing the test tube assembly, and the adapter seat is connected to an external rotating centrifugal grinder;

[0017] The test tube capping module is connected to the adapter seat and the rotating centrifugal grinder and is used for pressing the test tube assembly.

[0018] Furthermore, the test tube capping module comprises:

[0019] The test tube gland has a bottom that is snap-fitted with the top of the adapter seat, and an edge of the test tube gland is pressed onto the test tube assembly;

[0020] Tighten the nut, which is set on the top of the test tube gland;

[0021] The thread core is embedded in the interior of the tightening nut and is threadedly connected with one side of an external rotating centrifugal grinder.

[0022] Furthermore, the test tube capping module also includes:

[0023] A first bayonet, the first bayonet being arranged at the bottom of the test tube gland;

[0024] The second bayonet is arranged on the top of the adapter seat, the second bayonet matches the first bayonet in shape and they are clamped to each other, the first bayonet and the second bayonet are both triangular bayonet, which are used to clamp the test tube cover and the adapter base.

[0025] Furthermore, the test tube capping module also includes: a retaining ring, which is arranged at the bottom end of the tightening nut.

[0026] According to yet another embodiment of the present invention, a rotary centrifugal grinding machine is provided, comprising an adapter and a rotary oscillation driving mechanism, wherein the adapter is connected to the rotary oscillation driving mechanism.

[0027] Furthermore, it also includes: a multi-layer shock absorbing mechanism, which is arranged at the bottom of the rotary oscillation driving mechanism.

[0028] According to the test tube assembly, adapter and rotary centrifugal grinder of the embodiment of the present invention, the sample can be grinded and centrifuged at the same time, and the upper layer of sample fine liquid after grinding and centrifugation can be automatically extracted, which reduces the process, saves the operation steps, and greatly improves the efficiency. In addition, the present invention also has a good compression and anti-loosening effect, which prevents the device from loosening during use and ensures the reliability of the device.

[0029] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the three-dimensional structure of a test tube assembly according to an embodiment of the present invention.

[0031] Figure 2 Schematic diagram of the front cross-sectional structure of a test tube assembly according to an embodiment of the present invention.

[0032] Figure 3 Schematic diagram of the front cross-sectional structure of a test tube capping module of an adapter according to an embodiment of the present invention.

[0033] Figure 4 Schematic diagram of the three-dimensional structure of the test tube capping module of the adapter according to an embodiment of the present invention.

[0034] Figure 5 Schematic diagram of the front cross-sectional structure of an adapter according to an embodiment of the present invention.

[0035] Figure 6 It is a schematic diagram of the front cross-sectional structure of a rotary centrifugal grinding machine according to an embodiment of the present invention.

[0036] Figure 7 Schematic diagram of the three-dimensional structure of a rotary centrifugal grinder according to an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0038] First, combine Figure 1~2 The test tube assembly according to an embodiment of the present invention is described, which is used for automatically extracting fine liquid after grinding and centrifugation of a sample, and has a wide range of application scenarios.

[0039] like Figure 1~2 As shown, the test tube assembly of the embodiment of the present invention includes: a grinding tube 1, a grinder and an extraction module.

[0040] Specifically, Figure 1~2 As shown, in this embodiment, the grinding tube 1 is used to place the external grinding sample, the grinder is arranged in the grinding tube 1, and is used to grind the grinding sample. The extraction module is connected to the grinding tube 1, and is connected to the external grinder, centrifuge or rotary centrifugal grinder through the test tube assembly. The test tube assembly can be rotated and centrifuged, and the extraction module extracts the fine liquid of the grinding sample after grinding and centrifugation, thereby eliminating the need for manual extraction, saving labor costs and improving efficiency.

[0041] Further, if Figure 1~2As shown, in this embodiment, the grinder includes: grinding balls 21, which are arranged in the grinding tube 1 and are used to grind the grinding sample. The grinding ball 21 can be rotated in the test tube assembly through the centrifugal grinder to perform large-scale up and down and small-scale front and back three-dimensional movement ("8" shape movement), thereby grinding the sample.

[0042] Further, if Figure 1~2 As shown, in this embodiment, the extraction module includes: an extraction tube 31, a test tube cover 32, a plurality of extraction ports 33, a plurality of breathing ports 34, and a filter film 35. The extraction tube 31 is connected to the grinding tube 1, the test tube cover 32 is inserted into the extraction tube 31 to form an extraction chamber at the bottom of the extraction tube 31, the top of the test tube cover 32 is connected to the extraction tube 31, and a plurality of extraction ports 33 are evenly arranged on the bottom outer wall of the extraction tube 31. By using a plurality of extraction ports 33 and a plurality of breathing ports 34, the upper washing liquid of the sample can be effectively extracted. The extraction port 33 is connected to the extraction chamber, and a plurality of breathing ports 34 are evenly arranged on the top outer wall of the extraction tube 31 for gas circulation. The filter film 35 is sleeved on the outer wall of the extraction tube 31, and the filter film 35 covers the plurality of extraction ports 33 and the plurality of breathing ports 34. The extraction port 33 is used to extract the upper fine liquid of the sample through the filter film 35, and the breathing port 34 is used to ensure the pressure balance between the grinding tube 1 and the extraction tube 31, which is conducive to the extraction of the fine liquid of the sample.

[0043] Further, if Figure 2 As shown, in this embodiment, the sample surface of the ground sample in the grinding tube 1 is located between the extraction port 33 and the breathing port 34 to prevent the sample surface from being too high to block the breathing port 34 and fail to ensure pressure balance.

[0044] When in use, a rotating centrifugal grinder is installed through the test tube assembly, and the test tube assembly is allowed to perform large-scale up and down and small-scale front and back three-dimensional movement ("8"-shaped movement) through the rotating centrifugal grinder. The sample is ground by the grinding balls 21 in the grinding tube 1 to form a finer sample, and then the sample in the grinding tube 1 is centrifuged during rotation. At this time, the relatively coarse sample is thrown to the bottom of the grinding tube 1, and the relatively fine sample, under the action of centrifugation, passes through the filter membrane 35 and enters the extraction chamber from a plurality of extraction ports 33 to complete the extraction.

[0045] Above, refer to Figure 1~2 The test tube assembly according to the embodiment of the present invention is described, which can automatically extract the upper sample fine liquid after grinding and centrifugation, reduce the working procedures, save the operation steps, and greatly improve the efficiency.

[0046] like Figures 3-5 As shown, according to another embodiment of the present invention, an adapter is provided for fixing a test tube assembly, comprising: an adapter seat 4 and a test tube capping module.

[0047] like Figures 3-5 As shown, in this embodiment, at least one test tube sleeve 41 is provided on the adapter seat 4 for placing the test tube assembly 42, the adapter seat 4 is connected to the external rotating centrifugal grinder, and the test tube capping module is connected to the adapter seat 4 and the rotating centrifugal grinder for pressing the test tube assembly 42. Through the mutual cooperation between the adapter seat 4 and the test tube capping module, the test tube assembly 42 can be fixed and pressed to prevent loosening.

[0048] Further, if Figures 3-5 As shown, in this embodiment, the test tube gland module includes: a test tube gland 51, a tightening nut 52 and a threaded core 53. The bottom of the test tube gland 51 is snap-fitted with the top of the adapter seat 4, the edge of the test tube gland 51 is pressed on the test tube assembly, the tightening nut 52 is arranged on the top of the test tube gland 51, and the threaded core 53 is embedded in the tightening nut 52. The threaded core 53 and the tightening nut 52 can be connected by interference fit or the like, and the threaded core 53 is threadedly connected to one side of the external rotating centrifugal grinder. In order to reduce weight and increase the reliability of threaded connection, the threaded core 53 is made of high-strength material, and the tightening nut 52 and the gland are made of low-density material.

[0049] Further, if Figures 3-5 As shown, in this embodiment, the test tube gland module further includes: a first bayonet 54 and a second bayonet (not shown in the figure). The first bayonet 54 is arranged at the bottom of the test tube gland 51, and the second bayonet is arranged at the top of the adapter seat 4. The second bayonet matches the shape of the first bayonet 54 and is clamped to each other, and is used to clamp the test tube gland 51 and the adapter base. The first bayonet 54 and the second bayonet are both triangular bayonet. By adopting the triangular bayonet design, the test tube gland 51 can be clamped to the adapter base, and the threaded core 53 is connected to one side of the external rotating centrifugal grinder through a double locking method, so that the test tube assembly 42 can be clamped and released.

[0050] Further, if Figure 3~4 As shown, the test tube capping module further includes: a retaining ring 55, which is arranged at the bottom of the tightening nut 52. The design of the retaining ring 55 can connect the test tube capping 51, the tightening nut 52 and the threaded core 53 together without separation.

[0051] Above, refer to Figures 3-5 The adapter according to the embodiment of the present invention is described, which has good pressing and anti-loosening effects, prevents the device from loosening during use, and ensures the reliability of the device.

[0052] like Figure 6-7As shown, according to another embodiment of the present invention, a rotary centrifugal grinder is provided, comprising an adapter 6 and a rotary oscillation drive mechanism 7, wherein the adapter 6 is connected to the rotary oscillation drive mechanism 7, wherein the rotary oscillation drive mechanism 7 in the present case can adopt a single-motor rotary oscillation drive mechanism or a dual-motor rotary oscillation drive mechanism to realize the "8"-shaped operation (grinding) and high-speed rotation (centrifugation) of the test tube assembly, and realize automatic grinding of samples in the test tube assembly and automatic extraction of fine liquid, wherein the adapter 6 has a good pressing and anti-loosening effect to prevent the device from loosening during use, thereby ensuring the reliability of the device.

[0053] Further, if Figure 6-7 As shown, in this embodiment, the rotary centrifugal grinding machine of the embodiment of the present invention further includes: a multi-layer shock absorbing mechanism 8, the multi-layer shock absorbing mechanism 8 is arranged at the bottom of the rotary oscillation driving mechanism 7, and the multi-layer shock absorbing mechanism 8 includes a double-layer bottom plate and a double-layer mounting foot (elastic element), thereby realizing a multi-level vibration reduction system to reduce the vibration when the equipment is running.

[0054] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. An adapter for fixing a test tube assembly, characterized in that: Include: An adapter seat, wherein at least one test tube sleeve is provided on the adapter seat for placing the test tube assembly, and the adapter seat is connected to an external rotating centrifugal grinder; A test tube capping module, the test tube capping module is connected to the adapter seat and the rotary centrifugal grinder, and is used to press the test tube assembly; The test tube capping module comprises: A test tube gland, the bottom of which is snap-fitted with the top of the adapter seat, and the edge of which is pressed onto the test tube assembly; Tightening a nut, wherein the tightening nut is arranged on the top of the test tube gland; A thread core, the thread core is embedded in the tightening nut, and the thread core is threadedly connected to one side of the external rotating centrifugal grinder; The test tube capping module also includes: A first bayonet, wherein the first bayonet is arranged at the bottom of the test tube gland; A second bayonet, the second bayonet is arranged on the top of the adapter seat, the second bayonet matches the first bayonet in shape and is clamped to each other, the first bayonet and the second bayonet are both triangular bayonet, and are used to clamp the test tube gland and the adapter seat; The test tube capping module further comprises a retaining ring, which is arranged at the bottom end of the tightening nut.

2. A rotary centrifugal grinding machine, characterized in that: It comprises the adapter as claimed in claim 1 and a rotational oscillation driving mechanism, wherein the adapter is connected to the rotational oscillation driving mechanism.

3. The rotary centrifugal grinding machine according to claim 2, characterized in that: It also includes: a multi-layer shock absorbing mechanism, which is arranged at the bottom of the rotary oscillation driving mechanism.

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