Rotating mechanism for centrifugal machine

Abstract

The rotating mechanism for the centrifugal machine comprises a rotating frame and an air extracting pump, the rotating frame is provided with a rod body and at least two rotating arms which are connected, the at least two rotating arms are evenly arranged around the axis of the rod body, the rotating arms are provided with mounting holes which are used for insertion of test tubes and are arranged in an inclined mode, and the rod body is provided with a first channel. The rotating arm is provided with a second channel communicated with the first channel and the mounting hole, the sucking pump is arranged on the rod body, and the sucking pump can adsorb a test tube inserted into the mounting hole through the first channel and the second channel. By means of the structure, the suction pump can adsorb the test tube inserted into the mounting hole through the first channel and the second channel, so that the probability that the test tube slides in the axial direction of the mounting hole during centrifugal rotation work can be reduced, and then substance separation in the test tube can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, and in particular to a rotating mechanism for centrifuges. Background Technology

[0002] The rotating mechanism of a centrifuge is the core mechanism for separating substances with different specific gravities. In existing technologies, some centrifuge rotating mechanisms have inclined mounting holes for inserting test tubes. However, the inventors discovered through market research that test tubes inserted into the mounting holes are prone to sliding axially along the mounting holes during centrifugal rotation, which can easily affect the separation of substances within the test tubes. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a rotating mechanism for centrifuges.

[0004] A centrifuge rotating mechanism according to an embodiment of the present invention includes a rotating frame and a vacuum pump. The rotating frame has a connected rod body and at least two rotating arms. The at least two rotating arms are evenly arranged around the axis of the rod body. Each rotating arm has an inclined mounting hole for inserting test tubes. The rod body has a first channel, and the rotating arm has a second channel connecting the first channel and the mounting hole. The vacuum pump is located on the rod body and can suction test tubes inserted into the mounting hole through the first channel and the second channel.

[0005] A centrifuge rotary mechanism according to an embodiment of the present invention has at least the following beneficial effects:

[0006] With the above structure, the vacuum pump can adsorb the test tube inserted into the mounting hole through the first and second channels, thereby reducing the probability of the test tube sliding along the axial direction of the mounting hole during centrifugal rotation, and thus ensuring the separation of substances in the test tube.

[0007] According to some embodiments of the present invention, the top of the rod body is provided with an installation groove, the bottom of the installation groove is provided with a connecting cylinder, the cavity of the connecting cylinder is connected to the first channel, the air pump is provided in the installation groove, and the air pump pipe is sleeved on the connecting cylinder.

[0008] According to some embodiments of the present invention, the groove wall of the mounting groove is provided with at least two first protrusions, each first protrusion having a first hole, the air pump is provided with at least two second protrusions, each second protrusion having a second hole, the at least two second protrusions abutting against the at least two first protrusions in a one-to-one correspondence, and fasteners are threadedly connected to the at least two first holes and the at least two second holes in a one-to-one correspondence.

[0009] According to some embodiments of the present invention, the bottom of the mounting groove and the air pump are provided with a positioning block and a positioning groove, respectively. The positioning block is inserted into the positioning groove so that at least two first holes and at least two second holes are paired up.

[0010] According to some embodiments of this utility model, the rod body and the rotating arm are integrally formed.

[0011] According to some embodiments of the present invention, the mounting hole is provided with an abutment cylinder for inserting test tubes, the cylinder wall of the abutment cylinder is provided with a clearance hole communicating with the second channel, the abutment cylinder is made of an elastic material, wherein the air pump can adsorb the test tube inserted into the abutment cylinder through the first channel, the second channel and the clearance hole. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0013] Figure 1 This is a structural diagram of the rotating mechanism used in a centrifuge.

[0014] Figure 2 This is a cross-sectional view of the rotating mechanism used in a centrifuge.

[0015] Figure label:

[0016] Rotating frame 100, rod body 110, first channel 111, mounting groove 112, connecting cylinder 112A, first protrusion 112B, positioning groove 112C, rotating arm 120, mounting hole 121, second channel 122;

[0017] Air pump 200, air extraction pipe 210, second protrusion 220, positioning block 230;

[0018] Abutment cylinder 300, clearance hole 310. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, the use of terms such as first, second, third, fourth, and fifth is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0022] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 2 This utility model provides a rotating mechanism for a centrifuge, which includes a rotating frame 100 and an air pump 200.

[0024] The rotating frame 100 comprises a connecting rod body 110 and eight rotating arms 120. The eight rotating arms 120 are evenly arranged around the axis of the rod body 110. Each rotating arm 120 has an inclined mounting hole 121 for inserting test tubes. The rod body 110 has a first channel 111, and the rotating arms 120 have a second channel 122 connecting the first channel 111 and the mounting hole 121. A vacuum pump 200 is located on the rod body 110 and can suction the test tube inserted into the mounting hole 121 through the first channel 111 and the second channel 122. The rod body 110 and the rotating arms 120 are integrally formed.

[0025] It is understandable that the axis of the rod body 110 is set in the vertical direction; the mounting hole 121 is set at an angle, that is, the mounting hole 121 is set at an angle in the vertical direction.

[0026] With the above structure, the vacuum pump 200 can adsorb the test tube inserted into the mounting hole 121 through the first channel 111 and the second channel 122, so as to reduce the probability of the test tube sliding along the axial direction of the mounting hole 121 during centrifugal rotation, thereby ensuring the separation of substances in the test tube.

[0027] In some embodiments, the number of rotating arms 120 may be set to six, nine, etc.

[0028] In this embodiment, refer to Figures 1 to 2 The mounting hole 121 is provided with a receiving cylinder 300 for inserting test tubes. The cylinder wall of the receiving cylinder 300 has a clearance hole 310 communicating with the second channel 122. The receiving cylinder 300 is made of an elastic material. The vacuum pump 200 can adsorb the test tubes inserted into the receiving cylinder 300 through the first channel 111, the second channel 122, and the clearance hole 310. The receiving cylinder 300 is made of silicone or similar material.

[0029] It is understandable that when the test tube is inserted into the abutment cylinder 300, the test tube is inserted into the mounting hole 121.

[0030] With the above structure, the abutment cylinder 300 is made of elastic material, and the test tube inserted into the abutment cylinder 300 will be tightly covered by the abutment cylinder 300. Therefore, the probability of the test tube sliding along the axial direction of the mounting hole 121 during centrifugal rotation can be further reduced, so as to ensure that the substances in the test tube are fully separated.

[0031] The air pump 200 is installed on the rod body 110. For details, please refer to [reference needed]. Figure 2 The top of the rod body 110 is provided with a mounting groove 112, and the bottom of the mounting groove 112 is provided with a connecting cylinder 112A. The cavity of the connecting cylinder 112A is connected to the first channel 111. The air pump 200 is provided in the mounting groove 112, and the air pump pipe 210 is sleeved on the connecting cylinder 112A. The groove wall of the mounting groove 112 is provided with two first protrusions 112B, and the first protrusions 112B are provided with first holes (not shown in the figure). The air pump 200 is provided with two second protrusions 220, and the second protrusions 220 are provided with second holes (not shown in the figure). The two second protrusions 220 abut against the two first protrusions 112B in a corresponding manner. The two first holes and the two second holes are threadedly connected to fasteners (not shown in the figure).

[0032] With the above structure, the air pump 200 can be detachably mounted on the rod body 110, so as to facilitate the disassembly and maintenance of the air pump 200 in the future.

[0033] In some embodiments, the number of the first bump 112B and the second bump 220 is set to three, four, etc.

[0034] To ensure a one-to-one correspondence between the two first holes and the two second holes, facilitating the threaded installation of fasteners, refer to... Figure 2 The air pump 200 is provided with two positioning blocks 230, and the bottom of the mounting groove 112 is provided with two positioning grooves 112C. The two positioning blocks 230 are inserted into the two positioning grooves 112C in a one-to-one correspondence so that the two first holes and the two second holes correspond one-to-one.

[0035] In some embodiments, the number of positioning blocks 230 and positioning grooves 112C is set to one, the cross-section of positioning grooves 112C is non-circular, and positioning blocks 230 cooperate with positioning grooves 112C.

[0036] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A rotating mechanism for a centrifuge, characterized by: include A rotating frame (100) is provided with a connected rod body (110) and at least two rotating arms (120). The at least two rotating arms (120) are evenly arranged around the axis of the rod body (110). The rotating arms (120) are provided with inclined mounting holes (121) for inserting test tubes. The rod body (110) is provided with a first channel (111). The rotating arms (120) are provided with a second channel (122) connecting the first channel (111) and the mounting holes (121). An air pump (200) is provided on the rod body (110). The air pump (200) can adsorb the test tube inserted into the mounting hole (121) through the first channel (111) and the second channel (122).

2. The centrifuge rotary mechanism according to claim 1, characterized in that: The top of the rod body (110) is provided with an installation groove (112), and the bottom of the installation groove (112) is provided with a connecting cylinder (112A). The cavity of the connecting cylinder (112A) is connected to the first channel (111). The air pump (200) is located in the installation groove (112), and the air pump pipe (210) of the air pump (200) is sleeved on the connecting cylinder (112A).

3. The centrifuge rotary mechanism according to claim 2, characterized in that: The mounting groove (112) has at least two first protrusions (112B) on its groove wall, each first protrusion (112B) having a first hole. The air pump (200) has at least two second protrusions (220), each second protrusion (220) having a second hole. At least two second protrusions (220) abut against at least two first protrusions (112B) in a one-to-one correspondence. At least two first holes and at least two second holes are threadedly connected to fasteners in a one-to-one correspondence.

4. The centrifuge rotary mechanism according to claim 3, characterized in that: The bottom of the mounting groove (112) and the air pump (200) are provided with a positioning block (230) and a positioning groove (112C), respectively. The positioning block (230) is inserted into the positioning groove (112C) so that at least two of the first holes and at least two of the second holes correspond one-to-one.

5. A centrifuge rotary mechanism according to claim 1, characterized in that: The rod body (110) and the rotating arm (120) are integrally formed.

6. A centrifuge rotary mechanism according to claim 1, characterized in that: The mounting hole (121) is provided with a receiving cylinder (300) for inserting test tubes. The cylinder wall of the receiving cylinder (300) is provided with a clearance hole (310) communicating with the second channel (122). The receiving cylinder (300) is made of an elastic material. The air pump (200) can adsorb the test tube inserted into the abutment cylinder (300) through the first channel (111), the second channel (122) and the clearance hole (310).

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