Broad spectrum sample tube centrifuge

Abstract

The utility model discloses a broad-spectrum sample tube centrifugal machine which comprises a base, a speed regulating motor is arranged in the base, a transparent cover shell connected with the base through a hinge is arranged on the base, a connecting piece is arranged on the upper end face of the base and comprises a spline shaft and a connecting shaft, a rotor assembly is arranged at one end of the spline shaft, and the rotor assembly comprises a centrifugal disc, an extension sleeve and a limiting sleeve. A plurality of sample cavities are formed in the center plate, an extension sleeve is arranged on the lower portion of each sample cavity, a limiting sleeve is arranged in each sample cavity, each limiting sleeve comprises a connecting ring and arc-shaped elastic steel sheets, and the elastic steel sheets are arranged on the inner wall of the connecting ring in a circumferential array mode. And the limiting sleeve is arranged in the sample cavity, so that the sample tubes with different diameters can be fixed. And the centrifugal disc is arranged on the spline shaft in a sleeving manner through the connecting sleeve, so that the vertical position can be adjusted, and the sample tubes with different length specifications can be clamped.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment technology, specifically a broad-spectrum sample tube centrifuge. Background Technology

[0002] Centrifuges play a crucial role in modern laboratory work. However, existing laboratory centrifuges face numerous problems that urgently need to be addressed in practical applications.

[0003] The lack of adaptability to different sample tube sizes is particularly prominent. Sample tubes come in a wide variety of sizes, including different diameters, lengths, and capacities, in various experiments. Existing centrifuges often only accommodate a limited number of sample tube sizes, causing significant inconvenience to experimental work.

[0004] Traditional centrifuges may encounter the following problems when dealing with sample tubes of different sizes. Firstly, if the sample tube diameter does not match the centrifuge's specifications, it may not be stably fixed during centrifugation, easily shaking or even falling off. This can not only lead to experimental failure but also damage the centrifuge. Secondly, existing centrifuges may not provide suitable space for sample tubes of different lengths. Excessively long sample tubes may not fit completely into the centrifuge chamber. Summary of the Invention

[0005] (1) Technical problems solved

[0006] The technical problem to be solved by this invention is that traditional centrifuges cannot adapt to sample tubes of different lengths and diameters.

[0007] (II) Technical Solution

[0008] To solve the above problems, this utility model provides the following technical solution:

[0009] A broad-spectrum sample tube centrifuge includes a base, a speed-regulating motor inside the base, a transparent cover connected to the base by a hinge on the base, a connector on the upper end face of the base, the connector including a spline shaft and a connecting shaft, the connecting shaft passing through the upper end face of the base and connected to the rotating shaft of the speed-regulating motor, one end of the spline shaft having a rotor assembly, and the other end of the spline shaft being fixedly connected to the upper end of the connecting shaft;

[0010] The rotor assembly includes a centrifugal disc, an extension sleeve, and a limiting sleeve;

[0011] The centrifuge disc is provided with multiple sample chambers, and an extension sleeve is provided at the bottom of each sample chamber. A limiting sleeve is provided in each sample chamber. A connecting sleeve is provided at the bottom of the centrifuge disc and is sleeved on the spline shaft.

[0012] The limiting sleeve includes a connecting ring and an arc-shaped elastic steel sheet. The outer wall of the connecting ring is connected to the inner wall of the sample cavity by a threaded connection. One end of the elastic steel sheet is fixedly connected to the inner wall of the connecting ring, and multiple elastic steel sheets are arranged in a circumferential array on the inner wall of the connecting ring.

[0013] Furthermore, the height of the connecting sleeve is less than the height of the spline shaft.

[0014] Furthermore, the outer side of the elastic steel sheet is covered with an anti-slip layer.

[0015] Furthermore, the anti-slip layer is made of silicone material.

[0016] Furthermore, the end of the elastic steel sheet away from the connecting ring extends into the interior of the extension sleeve (502).

[0017] Furthermore, the extension sleeve is fixedly connected to the centrifuge disc, and the position of the extension sleeve corresponds to that of the sample chamber.

[0018] Furthermore, the outer side of the connecting sleeve is provided with a threaded hole that penetrates the side wall of the connecting sleeve, and a locking screw is provided in the threaded hole to lock the connecting sleeve and the spline shaft together.

[0019] (III) Beneficial Effects

[0020] The beneficial effects of this utility model are:

[0021] 1. By setting a limiting sleeve in the sample cavity, sample tubes of different diameters can be fixed.

[0022] 2. By fitting the centrifuge disc onto the splined shaft via a connecting sleeve, its vertical position can be adjusted, enabling the clamping of sample tubes of different lengths. Attached Figure Description

[0023] Figure 1 It is a three-dimensional diagram of the utility model;

[0024] Figure 2 This is a top view of the present invention;

[0025] Figure 3 This is a new anatomical view. Figure 1 ;

[0026] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 This is a cross-sectional view of the present invention. Figure 2 ;

[0028] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0029] Figure 7 This is a design schematic diagram of the elastic steel sheet and anti-slip layer of this utility model.

[0030] Markings in the diagram: 1-base, 2-speed control motor, 3-transparent cover, 4-connector, 5-rotor assembly;

[0031] 401 - Splined shaft, 402 - Connecting shaft;

[0032] 501-Centrifuge tray, 502-Extension sleeve, 503-Limiting sleeve, 504-Sample chamber, 505-Connecting sleeve, 506-Threaded hole, 507-Locking screw;

[0033] 503a - Connecting ring, 503b - Elastic steel sheet, 503c - Anti-slip layer. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Please see Figures 1-7 The broad-spectrum sample tube centrifuge shown includes a base 1, a speed-regulating motor 2 inside the base 1, and a transparent cover 3 connected to the base 1 by a hinge. The transparent cover 3 serves a protective function and is made of transparent material to facilitate the observation of the internal operation of the equipment by the experimental personnel.

[0037] The upper surface of the base 1 is provided with a connector 4, which includes a spline shaft 401 and a connecting shaft 402. The connecting shaft 402 passes through the upper surface of the base 1 and is connected to the rotating shaft of the speed-regulating motor 2. One end of the spline shaft 401 is provided with a rotor assembly 5, and the other end of the spline shaft 401 is fixedly connected to the upper end of the connecting shaft 402. The connector 4 is used to connect the speed-regulating motor 2 and the rotor assembly 5, and to transmit the rotational power of the speed-regulating motor 2 to the rotor assembly 5, thereby providing rotational power to the rotor assembly 5.

[0038] Rotor assembly 5 includes centrifugal disc 501, extension sleeve 502 and limiting sleeve 503;

[0039] The centrifuge disc 501 has multiple sample chambers 504, and each sample chamber 504 has an extension sleeve 502 at its lower part. Each sample chamber 504 also has a limiting sleeve 503, which is used to clamp and limit the sample tubes. A connecting sleeve 505 is located at the lower part of the centrifuge disc 501 and is fitted onto the splined shaft 401. To allow the connecting sleeve 505 to move up and down along the axis of the splined shaft 401, thus adjusting the height of the entire centrifuge disc 501, the connecting sleeve 505 and the splined shaft 401 are assembled and connected using a clearance fit. After assembly, to fix their relative position, a threaded hole 506 penetrating the side wall of the connecting sleeve 505 is provided on the outer side of the connecting sleeve 505. A locking screw 507 is provided in the threaded hole 506 to lock the connecting sleeve 505 and the splined shaft 401 together. The relative positions of the two are fixed by the end of the locking screw 507 abutting against the outer wall of the spline shaft 401.

[0040] When using longer sample tubes, loosen the locking screw 507 and move the centrifuge tray 501 upwards. Once the distance between the centrifuge tray 501 and the upper surface of the base 1 is appropriate, tighten the locking screw 507 to secure the connecting sleeve 505 and the splined shaft 401. This allows for timely adjustment of the height of the centrifuge tray 501 according to the length of the sample tube to meet the sample tube installation requirements.

[0041] The limiting sleeve 503 includes a connecting ring 503a and an arc-shaped elastic steel sheet 503b. The outer wall of the connecting ring 503a is connected to the inner wall of the sample cavity 504 by a threaded connection, which facilitates the assembly and disassembly of the limiting sleeve 503. During assembly and disassembly, only the connecting ring 503a needs to be rotated.

[0042] Furthermore, to better and more stably clamp and limit the sample, one end of the elastic steel sheet 503b is fixedly connected to the inner wall of the connecting ring 503a, and the end of the elastic steel sheet 503b away from the connecting ring 503a extends into the interior of the extension sleeve 502. Multiple elastic steel sheets 503b are arranged in a circumferential array on the inner wall of the connecting ring 503a.

[0043] When the sample tube is inserted into the limiting sleeve 503, the outer wall of the sample tube is compressed by multiple elastic steel sheets 503b. The elastic steel sheets 503b are deformed under pressure, which facilitates the installation of the sample tube. Similarly, a self-resetting force of the elastic steel sheets 503b is applied to the outer wall of the sample tube, and the multiple circumferentially arranged elastic steel sheets 503b apply force to the tube wall of the sample tube in multiple directions at the same time, thereby achieving the purpose of clamping and limiting the sample tube.

[0044] Specifically, the height of the connecting sleeve 505 is less than the height of the spline shaft 401.

[0045] In this embodiment, in order to ensure that the connecting sleeve 505 has sufficient room to move on the spline shaft 401, the height of the connecting sleeve 505 is designed to be less than the height of the spline shaft 401.

[0046] Specifically, the outer side of the elastic steel sheet 503b is covered with an anti-slip layer 503c, which is made of silicone material.

[0047] In this implementation scheme, to further enhance the friction between the sample tube and the elastic steel sheet 503b, a certain thickness of silicone is coated onto the elastic steel sheet 503b. Silicone is a polymer material that can adhere tightly to various surfaces when in contact, forming a stable anti-slip barrier. Whether it is smooth glass or tile, or rough wood or metal, silicone can exhibit good anti-slip performance.

[0048] Specifically, the extension sleeve 502 is fixedly connected to the centrifuge plate 501, and the position of the extension sleeve 502 is set corresponding to the sample chamber 504.

[0049] The working principle is as follows: First, the experimenter observes the length of the sample tube and, based on their subjective judgment, determines whether the height of the centrifuge tray 501 needs adjustment. If the height of the centrifuge tray 501 is insufficient for the required sample tube placement, the experimenter loosens the locking screw 507, moves the centrifuge tray 501 upwards to a suitable position, and then tightens the locking screw 507 to fix the position of the centrifuge tray 501. Then, the experimenter inserts the sample tube into the limiting sleeve 503. Multiple elastic steel sheets 503b are compressed against the outer wall of the sample tube. These elastic steel sheets 503b deform under pressure, facilitating the installation of the sample tube. Similarly, a self-resetting force of the elastic steel sheets 503b is applied to the outer wall of the sample tube, and the multiple circumferentially arranged elastic steel sheets 503b simultaneously apply force in multiple directions on the tube wall, thereby achieving the purpose of clamping and limiting the sample tube. This allows for installation and centrifugation even when the diameter of the sample tube differs significantly from the inner diameter of the sample cavity 504.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A broad-spectrum sample tube centrifuge, characterized in that: The device includes a base (1), a speed-regulating motor (2) is provided inside the base (1), a transparent cover (3) is provided on the base (1) and connected to the base (1) by a hinge, a connector (4) is provided on the upper end face of the base (1), the connector (4) includes a spline shaft (401) and a connecting shaft (402), the connecting shaft (402) passes through the upper end face of the base (1) and is connected to the rotating shaft of the speed-regulating motor (2), one end of the spline shaft (401) is provided with a rotor assembly (5), and the other end of the spline shaft (401) is fixedly connected to the upper end of the connecting shaft (402); The rotor assembly (5) includes a centrifugal disc (501), an extension sleeve (502), and a limiting sleeve (503); The centrifuge disc (501) is provided with a plurality of sample chambers (504), and an extension sleeve (502) is provided at the lower part of each of the sample chambers (504). A limiting sleeve (503) is provided in each of the sample chambers (504). A connecting sleeve (505) is provided at the lower part of the centrifuge disc (501) and is sleeved on the spline shaft (401). The limiting sleeve (503) includes a connecting ring (503a) and an arc-shaped elastic steel sheet (503b). The outer wall of the connecting ring (503a) is connected to the inner wall of the sample cavity (504) by a threaded connection. One end of the elastic steel sheet (503b) is fixedly connected to the inner wall of the connecting ring (503a), and multiple elastic steel sheets (503b) are arranged in a circumferential array on the inner wall of the connecting ring (503a).

2. The broad-spectrum sample tube centrifuge according to claim 1, characterized in that: The height of the connecting sleeve (505) is less than the height of the spline shaft (401).

3. The broad-spectrum sample tube centrifuge according to claim 1, characterized in that: The outer side of the elastic steel sheet (503b) is covered with an anti-slip layer (503c).

4. The broad-spectrum sample tube centrifuge according to claim 3, characterized in that: The anti-slip layer (503c) is made of silicone material.

5. The broad-spectrum sample tube centrifuge according to claim 1, characterized in that: The end of the elastic steel sheet (503b) away from the connecting ring (503a) extends into the interior of the extension sleeve (502).

6. The broad-spectrum sample tube centrifuge according to claim 1, characterized in that: The extension sleeve (502) is fixedly connected to the centrifuge disc (501), and the position of the extension sleeve (502) is set corresponding to the sample chamber (504).

7. The broad-spectrum sample tube centrifuge according to claim 1, characterized in that: The outer side of the connecting sleeve (505) is provided with a threaded hole (506) that passes through the side wall of the connecting sleeve (505), and a locking screw (507) is provided in the threaded hole (506) to lock the connecting sleeve (505) and the spline shaft (401).

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