Centrifugal machine rotor with reset function

Abstract

The utility model relates to the technical field of centrifugal machines, in particular to a centrifugal machine rotor with a reset function, which comprises a rotor body and hanging cups, a plurality of mounting grooves for mounting the hanging cups are formed in the side surface of the rotor body, and bosses for mounting the hanging cups are mounted on the inner walls of the mounting grooves; the angle limiting mechanism comprises a first limiting plate and an adjusting mounting assembly used for adjusting the position of the first limiting plate; by adjusting the position of the first limiting plate in the angle limiting mechanism in the mounting groove, the contact point of the first limiting plate and the hanging cup can be changed, and the effect that the hanging cup can be switched between the horizontal rotor state and the angle rotor state during centrifugation is achieved; and the hanging cup can operate at different angles by adjusting the first limiting plate, so that the effect that the rotor does not need to be replaced when the centrifugal requirements at different angles are met is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a centrifuge rotor with a resetting function. Background Art

[0002] The centrifuge rotor is the main component of the centrifuge. According to different performances, the existing centrifuge rotors are divided into horizontal rotors and angle rotors. The existing horizontal rotors and angle rotors are generally not interchangeable. However, with the market demand for experiments, some centrifuges that are compatible with the performance of horizontal rotors and angle rotors will gradually be launched on the market. Therefore, in order to ensure the compatibility of the centrifuge rotor and based on the characteristic that the horizontal rotor can facilitate the vertical extraction of samples after stopping, we provide a centrifuge rotor with a reset function. While having the function of vertically resetting the sample after the centrifugation stops, it can also switch between the states of the horizontal rotor and the angle rotor. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a centrifuge rotor with a resetting function.

[0004] The centrifuge rotor with reset function of the utility model comprises a rotor body and a hanging cup, wherein the side of the rotor body is provided with a plurality of mounting grooves for mounting the hanging cup, and the inner wall of the mounting groove is provided with a boss for mounting the hanging cup;

[0005] It also includes an angle limiting mechanism, which includes a first limiting plate and an adjustment installation component for adjusting the position of the first limiting plate;

[0006] The number of the first limit plates matches the number of the mounting slots and are all located inside the mounting slots. The first limit plates are all installed on the same mounting plate through corresponding connectors. The first limit plates adjust and control the angle of the hanging cup during centrifugal rotation by changing the fitting position after the hanging cup is rotated.

[0007] The hanging cup is provided with hanging ears on both sides, and the hanging ears are provided with hanging grooves matched with the bosses. The side of the hanging ears away from the rotor axis extends downward to the bottom to form a reset portion.

[0008] In some embodiments, the adjustment mounting assembly includes a screw, a nut and a washer, the washer is provided with a mounting hole for the screw to pass through, and the washer is installed between the rotor body and the mounting plate and sleeved on the screw.

[0009] In some embodiments, the top of the screw is fixedly connected to the bottom of the mounting plate, and a docking hole for the screw to pass through the rotor body is provided on the rotor body.

[0010] In some embodiments, the screw rod is fixedly connected to the top of the rotor body, and a docking hole matching the screw rod is opened on the top of the mounting plate.

[0011] In some embodiments, the first limiting plate is attached to the side wall of the hanging cup in a vertical state, and the distance a between the upper surface of the first limiting plate and the horizontal axis of the center of the boss is greater than the distance b between the center of the boss and the inner side of the hanging cup.

[0012] In some embodiments, a first fitting groove is formed between the connecting member and the first limiting plate, and the first fitting groove is used to accommodate the hanging cup rotated to a horizontal position.

[0013] In some embodiments, a second limit plate is fixedly connected to the bottom of the inner wall of the mounting groove near the center of the rotor body, and one end of the second limit plate near the hanging cup is in contact with the hanging cup. A second fitting groove is formed between the second limit plate and the inner wall of the mounting groove, and the second fitting groove is used to accommodate the hanging cup rotated to a horizontal position.

[0014] In some embodiments, a wind hood is also included, which includes a first horizontal ring plate and a second horizontal ring plate, the first horizontal ring plate is connected to the edge of the rotor body by bolts or screws, the second horizontal ring plate is installed on the outer bottom of the rotor body by bolts or screws, and a connecting ring is provided between the first horizontal ring plate and the second horizontal ring plate, and an active cavity for accommodating the rotation of the hanging cup is formed between the first horizontal ring plate, the second horizontal ring plate and the connecting ring.

[0015] In some embodiments, a horizontal distance c between the bottom of the first horizontal ring plate and the boss is greater than a vertical distance d between the vertical axis of the boss and the outer side wall of the hanging cup.

[0016] Furthermore, a conical portion is provided at the bottom of the connecting ring.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The utility model can change the contact point between the first limit plate and the hanging cup by adjusting the position of the first limit plate in the angle limiting mechanism inside the mounting groove, thereby achieving the effect of enabling the hanging cup to switch between the states of the horizontal rotor and the angle rotor during centrifugation, and by adjusting the first limit plate, the hanging cup can also be operated at different angles, thereby achieving the effect of not having to replace the rotor when centrifugation at different angles is required.

[0019] 2. The utility model only limits the inner side of the hanging cup. After the hanging cup is centrifuged, the hanging cup can be in a vertical state like the hanging cup in the existing horizontal rotor. That is, the rotor can not only switch between the horizontal rotor and the angular rotor, but also has the function of resetting the hanging cup. In combination with the setting of the hanging cup resetting part, the hanging cup can be quickly reset to the vertical state. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the top view of the structure when the screw rod is fixedly connected to the mounting plate in the first embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the front cross-section structure when the screw rod is fixedly connected to the mounting plate in the first embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the front cross-section structure of the first embodiment of the utility model when the screw rod is fixedly connected to the mounting plate and the horizontal rotor is running;

[0024] Figure 4 It is a schematic diagram of the front cross-section structure when the screw rod and the mounting plate are fixedly connected to each other in the first embodiment of the utility model and the angular rotor is running;

[0025] Figure 5 This is a schematic diagram of the top view of the structure when the screw rod and the rotor body are fixedly connected in the first embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the front cross-section structure when the screw rod and the rotor body are fixedly connected in the first embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the front cross-section structure of the second embodiment of the utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the third embodiment of the present invention.

[0029] In the figure: 1, rotor body; 2, mounting groove; 3, boss; 4, angle limiting mechanism; 41, first limit plate; 42, connecting member; 43, mounting plate; 44, adjustment mounting assembly; 441, screw; 442, nut; 443, washer;

[0030] 5. hanging cup; 51. hanging ear; 52. hanging groove; 53. reset part;

[0031] 6. Second limiting plate; 7. First fitting groove; 8. Second fitting groove;

[0032] 9. Wind hood; 91. First horizontal ring plate; 92. Second horizontal ring plate; 93. Connecting ring; 931. Conical portion. DETAILED DESCRIPTION

[0033] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0034] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] Embodiment 1

[0036] See also Figure 1-Figure 6 The centrifuge rotor with reset function of the utility model comprises a rotor body 1 and a hanging cup 5. The side of the rotor body 1 is provided with a plurality of mounting grooves 2 for mounting the hanging cup 5. The inner wall of the mounting groove 2 is provided with a boss 3 for mounting the hanging cup 5.

[0037] It also includes an angle limiting mechanism 4, which includes a first limiting plate 41 and an adjusting and mounting assembly 44 for adjusting the position of the first limiting plate 41;

[0038] The number of the first limiting plates 41 matches the number of the mounting grooves 2, and all of them are located inside the mounting grooves 2. The first limiting plates 41 are all installed on the same mounting plate 43 through corresponding connecting pieces 42. The first limiting plates 41 adjust and control the angle of the hanging cup 5 during centrifugal rotation by changing the fitting position of the hanging cup 5 after rotation.

[0039] The first limiting plate 41 is attached to the side wall of the hanging cup 5 in the vertical state, and the distance a between the upper surface of the first limiting plate 41 and the horizontal axis of the center of the boss 3 is greater than the distance b between the center of the boss 3 and the inner side of the hanging cup 5; a first fitting groove 7 is formed between the connecting member 42 and the first limiting plate 41, and the first fitting groove 7 is used to accommodate the hanging cup 5 rotated to the horizontal state;

[0040] The hanging cup 5 has hanging ears 51 on both sides. The hanging ears 51 are provided with hanging grooves 52 adapted to the boss 3. The side of the hanging ears 51 away from the rotor axis extends downward to the bottom to form a reset portion 53.

[0041] The adjustment and installation assembly 44 includes a screw rod 441 , a nut 442 and a washer 443 . The washer 443 is provided with an installation hole for the screw rod 441 to pass through. The washer 443 is installed between the rotor body 1 and the installation plate 43 and sleeved on the screw rod 441 .

[0042] The top of the screw rod 441 is fixedly connected to the bottom of the mounting plate 43, and a docking hole for the screw rod 441 to penetrate the rotor body 1 is opened on the rotor body 1, or the screw rod 441 is fixedly connected to the top of the rotor body 1, and a docking hole adapted to the screw rod 441 is opened on the top of the mounting plate 43;

[0043] The screw rod 441 is fixedly connected to the mounting plate 43, which can facilitate machining of the rotor body 1 and reduce the overall height of the rotor body 1 when in use; and the screw rod 441 is fixedly connected to the rotor body 1 so that the screw rod 441 faces upward, which can facilitate disassembly of the nut 442 for assembly and switching;

[0044] Working principle:

[0045] See also Figure 3 In this embodiment, it is first selected whether to use an angular rotor or a horizontal rotor according to the experimental requirements. If a horizontal rotor is required, the gasket 443 needs to be removed so that the mounting plate 43 fits with the upper surface of the rotor body 1, and then the screw 441 is locked by the nut 442, so that when the device is installed in the centrifuge for centrifugation, the hanging cup 5 can be rotated to a horizontal state with the boss 3 as the rotation point for centrifugation, thereby realizing the function of a horizontal rotor, and after horizontal rotation, the reset portion 53 extending downward from the hanging ear 51 can make the outer mass of the hanging cup 5 greater than the inner side, so that the horizontal hanging cup 5 can be quickly rotated and reset by its own weight after stopping the centrifugation, and in the process of resetting, because the first limit plate 41 fits with the hanging cup 5 in the initial state, in the process of resetting the hanging cup 5, the swing path of the hanging cup 5 can be effectively cut off, thereby realizing rapid reset;

[0046] See also Figure 4If an angle rotor is needed, a washer 443 can be placed between the rotor body 1 and the mounting plate 43 and locked by a nut 442, thereby changing the position of the first limit plate 41 in the mounting groove 2. When the height of the first limit plate 41 rises, the rotation angle of the hanging cup 5 can be limited to ensure that the hanging cup 5 is centrifuged at a certain angle after rotation; and by setting washers 443 of different thicknesses or quantities, the position of the first limit plate 41 in the mounting groove 2 can be adjusted, so that the hanging cup 5 is centrifuged at different angles in the mounting groove 2, further increasing the practicality of the rotor, and there is no need to replace the rotor when centrifugation at different angles is required.

[0047] Embodiment 2

[0048] See also Figure 7 As a further improvement of the above-mentioned embodiment 1, different from the embodiment 1, a second limiting plate 6 is fixedly connected to the bottom of the inner wall of the mounting groove 2 near the center of the rotor body 1, and one end of the second limiting plate 6 near the hanging cup 5 is in contact with the hanging cup 5, and the second limiting plate 6 and the inner wall of the mounting groove 2 form a second fitting groove 8, and the second fitting groove 8 is used to accommodate the hanging cup 5 rotated to the horizontal;

[0049] In this embodiment, because the second limiting plate 6 is fixed inside the mounting groove 2 and vertically fits with the hanging cup 5 , the rotor body 1 can be used alone as a horizontal rotor without the angle limiting mechanism 4 .

[0050] Embodiment 3

[0051] See also Figure 8 As a further improvement of the first and second embodiments, a wind hood 9 is also included, which includes a first horizontal ring plate 91 and a second horizontal ring plate 92. The first horizontal ring plate 91 is connected to the edge of the rotor body 1 by bolts or screws, and the second horizontal ring plate 92 is installed on the outer bottom of the rotor body 1 by bolts or screws. A connecting ring 93 is provided between the first horizontal ring plate 91 and the second horizontal ring plate 92, and an active cavity for accommodating the rotation of the hanging cup 5 is formed between the first horizontal ring plate 91, the second horizontal ring plate 92 and the connecting ring 93.

[0052] The horizontal distance c between the bottom of the first horizontal ring plate 91 and the boss 3 is greater than the vertical distance d between the vertical axis of the boss 3 and the outer side wall of the hanging cup 5 .

[0053] Preferably, a conical portion 931 is provided at the bottom of the connecting ring 93, and the setting of the conical portion 931 can reduce wind resistance during operation.

[0054] As a further improvement of the first or second embodiment, during use, the wind resistance of the hanging cup 5 during centrifugation is mainly reduced by a specially made wind shield 9, so as to prevent the hanging cup 5 from directly flying out after detaching from the boss 3 and causing damage to the centrifuge body; and the setting of the wind shield 9 does not affect the angle of the hanging cup 5 during centrifugation, thereby further adapting to the use of the rotor.

[0055] The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A centrifuge rotor with a reset function, comprising a rotor body (1) and a hanging cup (5), characterized in that: A plurality of mounting grooves (2) for mounting the hanging cups (5) are provided on the side surfaces of the rotor body (1), and bosses (3) for mounting the hanging cups (5) are installed on the inner walls of the mounting grooves (2); It also includes an angle limiting mechanism (4), wherein the angle limiting mechanism (4) includes a first limiting plate (41) and an adjusting mounting assembly (44) for adjusting the position of the first limiting plate (41); The number of the first limit plates (41) matches the number of the mounting grooves (2) and are all located inside the mounting grooves (2); the first limit plates (41) are all installed on the same mounting plate (43) via corresponding connecting pieces (42); the first limit plates (41) adjust and control the angle of the hanging cup (5) during centrifugal rotation by changing the fitting position of the hanging cup (5) after rotation; The hanging cup (5) is provided with hanging ears (51) on both sides, and the hanging ears (51) are provided with hanging grooves (52) adapted to the boss (3). The side of the hanging ears (51) away from the rotor axis extends downward to the bottom to form a reset portion (53).

2. A centrifuge rotor with a reset function according to claim 1, characterized in that: The adjustment mounting assembly (44) comprises a screw rod (441), a nut (442) and a washer (443); a mounting hole for the screw rod (441) to pass through is provided on the washer (443); the washer (443) is mounted between the rotor body (1) and the mounting plate (43) and sleeved on the screw rod (441).

3. The centrifuge rotor with reset function according to claim 2, characterized in that: The top of the screw rod (441) is fixedly connected to the bottom of the mounting plate (43), and a docking hole for the screw rod (441) to penetrate the rotor body (1) is provided on the rotor body (1).

4. The centrifuge rotor with a reset function according to claim 2, characterized in that: The screw rod (441) is fixedly connected to the top of the rotor body (1), and a docking hole matching the screw rod (441) is provided on the top of the mounting plate (43).

5. The centrifuge rotor with reset function according to claim 1, characterized in that: The first limiting plate (41) is fitted to the side wall of the hanging cup (5) in a vertical state, and the distance a between the upper surface of the first limiting plate (41) and the horizontal axis of the center of the boss (3) is greater than the distance b between the center of the boss (3) and the inner side of the hanging cup (5).

6. The centrifuge rotor with reset function according to claim 1, characterized in that: A first fitting groove (7) is formed between the connecting member (42) and the first limiting plate (41), and the first fitting groove (7) is used to accommodate the hanging cup (5) rotated to a horizontal position.

7. A centrifuge rotor with a reset function according to any one of claims 1 to 6, characterized in that: A second limiting plate (6) is fixedly connected to the bottom of the inner wall of the installation groove (2) near the center of the rotor body (1); one end of the second limiting plate (6) near the hanging cup (5) is in contact with the hanging cup (5); a second fitting groove (8) is formed between the second limiting plate (6) and the inner wall of the installation groove (2); the second fitting groove (8) is used to accommodate the hanging cup (5) rotated to a horizontal position.

8. A centrifuge rotor with a reset function according to any one of claims 1 to 5, characterized in that: The invention also comprises a wind shield (9), wherein the wind shield (9) comprises a first horizontal ring plate (91) and a second horizontal ring plate (92), wherein the first horizontal ring plate (91) is connected to the edge of the rotor body (1) by bolts or screws, and the second horizontal ring plate (92) is installed on the outer bottom of the rotor body (1) by bolts or screws, and a connecting ring (93) is provided between the first horizontal ring plate (91) and the second horizontal ring plate (92), and a movable cavity for accommodating the rotation of the hanging cup (5) is formed between the first horizontal ring plate (91), the second horizontal ring plate (92) and the connecting ring (93).

9. The centrifuge rotor with reset function according to claim 8, characterized in that: The horizontal distance c between the bottom of the first horizontal ring plate (91) and the boss (3) is greater than the vertical distance d between the vertical axis of the boss (3) and the outer side wall of the hanging cup (5).

10. The centrifuge rotor with a reset function according to claim 9, characterized in that: The bottom of the connecting ring (93) is provided with a tapered portion (931).

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