Low-speed centrifugal machine convenient for internal cleaning

Abstract

The utility model discloses a low-speed centrifuge convenient for internal cleaning, which comprises a shell, a base is mounted at the bottom of an inner cavity of the shell, an annular slide rail is mounted at the top of the base, a round hole is formed in the top of the shell, an inner container is placed in the round hole, a slide ring is mounted at the bottom of the inner container, and the slide ring is rotatably mounted on the annular slide rail. A gear ring is installed on the outer side of the inner container, a first motor and a reduction gearbox are installed in the shell, an output shaft of the first motor is connected with the input end of the reduction gearbox, and a gear is installed at the output end of the reduction gearbox and meshed with the gear ring. According to the low-speed centrifugal machine facilitating internal cleaning, by arranging the cleaning piece, cleaning cloth can be pressed on the inner side wall of the inner container, by arranging an annular sliding rail to be matched with a sliding ring, the inner container can rotate on the base, by arranging a first motor to drive a gear to rotate, and then by meshing of the gear and a gear ring, the inner container can be driven to rotate; and therefore, the inner side wall of the liner is cleaned by the cleaning cloth.

Description

Technical Field

[0001] The utility model relates to the technical field of low-speed centrifuges, and particularly relates to a low-speed centrifuge which is convenient for internal cleaning. Background Art

[0002] A low-speed centrifuge is a conventional instrument used for centrifugal precipitation in laboratories, and is widely used in fields such as clinical medicine, biochemistry, immunology, and blood stations. During the use of a low-speed centrifuge, it is inevitable that test liquids will splash onto the side wall of the inner tank of the centrifuge. These liquids splashed on the inner tank need to be cleaned up in time, otherwise the test environment in the inner tank will be polluted. When the existing centrifuge is cleaned, since most of the space inside the inner tank is occupied by the rotor, it is very inconvenient to directly clean the inner wall of the inner tank. Therefore, the rotor needs to be disassembled and then the inner tank is cleaned, and the operation is relatively cumbersome.

[0003] Therefore, we design a low-speed centrifuge which is convenient for internal cleaning here. Content of the Utility Model

[0004] The purpose of the utility model is to provide a low-speed centrifuge which is convenient for internal cleaning in view of the deficiencies of the prior art, so as to solve the problems raised in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A low-speed centrifuge which is convenient for internal cleaning, comprising a housing, a base is installed at the bottom of the inner cavity of the housing, a circular rail is installed on the top of the base, a circular hole is provided at the top of the housing, and an inner tank is placed in the circular hole. A slip ring is installed at the bottom of the inner tank, and the slip ring is rotatably installed on the circular rail. A toothed ring is installed on the outer side of the inner tank. A first motor and a speed reducer are installed inside the housing. The output shaft of the first motor is connected to the input end of the speed reducer, and a gear is installed at the output end of the speed reducer. The gear meshes with the toothed ring;

[0006] A fixing ring is installed at the edge of the circular hole at the top of the housing. Six approximately L-shaped clamping slots are provided at the top edge of the fixing ring. The six clamping slots are arranged in a circular array around the axis of the fixing ring, and a cleaning part is clamped in the clamping slots.

[0007] Preferably, the cleaning part comprises a circular ring, six clamping blocks are installed on the outer ring of the circular ring. The six clamping blocks are arranged in a circular array around the axis of the circular ring, and the clamping blocks can cooperate with the clamping slots on the fixing ring. Two vertical plates which are symmetric about the axis of the circular ring are installed at the bottom edge of the circular ring, and cleaning cloths are fixed on the outer sides of the two vertical plates.

[0008] Preferably, a second motor is installed inside the base, the output shaft of the second motor is vertically upward, and a rotating shaft is installed on the output shaft. The top end of the rotating shaft passes through the base and the bottom of the inner tank and is located inside the inner cavity of the inner tank. A rotor is arranged inside the inner tank, and the rotor is fixed to the top of the rotating shaft by screws.

[0009] Preferably, a sealing ring is installed outside the round hole at the top of the housing, a cover plate is rotatably installed on the top of the housing, and a controller is installed on the housing.

[0010] Preferably, the reduction gearbox adopts a worm and worm gear reduction gearbox.

[0011] Preferably, the outer radius of the ring is equal to the inner radius of the fixed ring, and the vertical length of the vertical plate is equal to the inner cavity depth of the inner container.

[0012] Compared with the prior art, the present utility model provides a low-speed centrifuge that is convenient for internal cleaning, and has the following beneficial effects:

[0013] For the low-speed centrifuge that is convenient for internal cleaning, by setting the cleaning part, the cleaning cloth can be pressed against the inner side wall of the inner container. By setting the cooperation of the annular slide rail and the sliding ring, the inner container can rotate on the base. By setting the first motor to drive the gear to rotate, and then through the meshing of the gear and the toothed ring, the inner container can be driven to rotate, so that the cleaning cloth can clean the inner side wall of the inner container. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the housing of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the cleaning part of the present utility model.

[0017] Reference numerals: 1. Housing; 2. Base; 3. Annular slide rail; 4. Inner container; 5. Sliding ring; 6. Toothed ring; 7. First motor; 8. Reduction gearbox; 9. Gear; 10. Fixed ring; 11. Cleaning part; 11-1. Ring; 11-2. Block; 11-3. Vertical plate; 11-4. Cleaning cloth; 12. Second motor; 13. Rotating shaft; 14. Rotor; 15. Sealing ring; 16. Cover plate; 17. Controller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1 - 3, in this embodiment: A low-speed centrifuge convenient for internal cleaning includes a housing 1. A base 2 is installed at the bottom of the inner cavity of the housing 1. A circular rail 3 is installed on the top of the base 2. A circular hole is provided at the top of the housing 1, and an inner container 4 is placed in the circular hole. A slip ring 5 is installed at the bottom of the inner container 4. The slip ring 5 is rotatably installed on the circular rail 3. Through the cooperation of the slip ring 5 and the circular rail 3, the inner container 4 can rotate on the base 2. A toothed ring 6 is installed on the outer side of the inner container 4. A first motor 7 and a speed reducer 8 are installed inside the housing 1. The output shaft of the first motor 7 is connected to the input end of the speed reducer 8. A gear 9 is installed at the output end of the speed reducer 8. The gear 9 meshes with the toothed ring 6. Through the cooperation of the first motor 7 and the speed reducer 8, the gear 9 can be driven to rotate, and then through the meshing of the gear 9 and the toothed ring 6, the inner container 4 can be driven to rotate. The speed reducer 8 adopts a worm and worm gear speed reducer. When the first motor 7 is turned off, the inner container 4 will not be able to rotate;

[0020] A fixing ring 10 is installed at the edge of the circular hole at the top of the housing 1. Six approximately L-shaped card slots are provided at the top edge of the fixing ring 10. The six card slots are arranged in a circular array around the axis of the fixing ring 10. A cleaning part 11 is clamped in the card slots. The cleaning part 11 is used to clean the inner side wall of the inner container 4.

[0021] Please refer to Figure 3 , the cleaning part 11 includes a circular ring 11-1. Six clamping blocks 11-2 are installed on the outer ring of the circular ring 11-1. The six clamping blocks 11-2 are arranged in a circular array around the axis of the circular ring 11-1, and the clamping blocks 11-2 can cooperate with the card slots on the fixing ring 10. Two vertical plates 11-3 that are symmetric about the axis of the circular ring 11-1 are installed at the bottom edge of the circular ring 11-1. Cleaning cloths 11-4 are fixed on the outer sides of the two vertical plates 11-3. The cleaning cloths 11-4 are used to clean the inner side wall of the inner container 4. The outer ring radius of the circular ring 11-1 is equal to the inner ring radius of the fixing ring 10. The circular ring 11-1 is placed inside the fixing ring 10, and the clamping blocks 11-2 are inserted into the card slots on the fixing ring 10, and then the circular ring 11-1 is rotated, and the clamping blocks 11-2 can be clamped into the card slots, so as to fix the cleaning part 11 to the fixing ring 10. The vertical length of the vertical plate 11-3 is equal to the inner cavity depth of the inner container 4. When the cleaning part 11 is fixed to the fixing ring 10, the cleaning cloth 11-4 will press on the inner side wall of the inner container 4. The cleaning part 11 needs to be removed from the fixing ring 10 before the centrifuge works, so as to prevent the cleaning part 11 from affecting the operation of the centrifuge.

[0022] Please refer to Figure 2, a second motor 12 is installed inside the base 2. The output shaft of the second motor 12 is vertically upward, and a rotating shaft 13 is installed on the output shaft. The top end of the rotating shaft 13 passes through the bottom of the base 2 and the inner tank 4 and is located in the inner cavity of the inner tank 4. A rotor 14 is arranged in the inner tank 4. The rotor 14 is fixed to the top of the rotating shaft 13 by screws. Starting the second motor 12 can drive the rotor 14 to rotate.

[0023] Please refer to Figure 1 , a sealing ring 15 is installed outside the round hole at the top of the housing 1. A cover plate 16 is rotatably installed at the top of the housing 1. The cover plate 16 can rotate and cover the top of the housing 1. A lock catch is arranged between the cover plate 16 and the housing 1. When the cover plate 16 covers the housing 1, the sealing ring 15 will be padded between the cover plate 16 and the housing 1, so as to prevent dust and other impurities from entering the inner tank during the operation of the centrifuge and polluting the test sample. A controller 17 is installed on the housing 1. The controller 17 is used to control the switches of the first motor 7 and the second motor 12 and the rotation speed of the output shaft of the second motor 12.

[0024] The working principle and usage process of the present utility model: When this low-speed centrifuge that is convenient for internal cleaning is in use, if test liquid splashes onto the inner side wall of the inner tank 4 after centrifugation, first wet the cleaning cloth 11-4 on the cleaning member 11 with clean water or alcohol, then place the ring 11-1 of the cleaning member 11 inside the fixing ring 10, and insert the clamping block 11-2 into the card slot on the fixing ring 10, and then rotate the ring 11-1 to snap the clamping block 11-2 into the card slot, thereby fixing the cleaning member 11 to the fixing ring 10. At this time, the vertical plate 11-3 is located in the gap between the inner side wall of the inner tank 4 and the rotor 14, and the cleaning cloth 11-4 presses on the inner side wall of the inner tank 4. Start the first motor 7, the first motor 7 drives the gear 9 on the reduction box 8 to rotate, and then drives the inner tank 4 to rotate through the meshing of the gear 9 and the toothed ring 6, so that the cleaning cloth 11-4 cleans the inner wall of the inner tank 4. After the cleaning is completed, first disassemble the cleaning member 11 from the fixing ring 10, and then wash the cleaning cloth 11-4 on the cleaning member 11.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A low-speed centrifuge facilitating internal cleaning, comprising a housing (1), characterized in that: At the bottom of the inner cavity of the housing (1), a base (2) is installed. On the top of the base (2), an annular slide rail (3) is installed. At the top of the housing (1), a round hole is provided, and an inner tank (4) is placed in the round hole. At the bottom of the inner tank (4), a slip ring (5) is installed, and the slip ring (5) is rotatably installed on the annular slide rail (3). On the outer side of the inner tank (4), a toothed ring (6) is installed. Inside the housing (1), a first motor (7) and a speed reducer (8) are installed. The output shaft of the first motor (7) is connected to the input end of the speed reducer (8). At the output end of the speed reducer (8), a gear (9) is installed, and the gear (9) meshes with the toothed ring (6). At the edge of the round hole at the top of the housing (1), a fixing ring (10) is installed. At the top edge of the fixing ring (10), six approximately L-shaped card slots are provided, and the six card slots are arranged in a circular array around the axis of the fixing ring (10). A cleaning part (11) is clamped in the card slots.

2. The low-speed centrifuge facilitating internal cleaning according to claim 1, wherein: The cleaning part (11) includes a circular ring (11-1). On the outer ring of the circular ring (11-1), six clamping blocks (11-2) are installed, and the six clamping blocks (11-2) are arranged in a circular array around the axis of the circular ring (11-1), and the clamping blocks (11-2) can cooperate with the card slots on the fixing ring (10). At the bottom edge of the circular ring (11-1), two vertical plates (11-3) that are symmetric about the axis of the circular ring (11-1) are installed. On the outer sides of the two vertical plates (11-3), cleaning cloths (11-4) are fixed.

3. The low-speed centrifuge for facilitating internal cleaning according to claim 1, wherein: Inside the base (2), a second motor (12) is installed. The output shaft of the second motor (12) is vertically upward, and a rotating shaft (13) is installed on the output shaft. The top end of the rotating shaft (13) passes through the bottom of the base (2) and the inner tank (4) and is located in the inner cavity of the inner tank (4). A rotor (14) is arranged in the inner tank (4), and the rotor (14) is fixed to the top of the rotating shaft (13) by screws.

4. A low-speed centrifuge facilitating internal cleaning according to claim 1, wherein: Outside the round hole at the top of the housing (1), a sealing ring (15) is installed. The top of the housing (1) is rotatably installed with a cover plate (16). A controller (17) is installed on the housing (1).

5. A low-speed centrifuge facilitating internal cleaning according to claim 1, characterized in that: The speed reducer (8) adopts a worm and worm gear speed reducer.

6. The low-speed centrifuge convenient for internal cleaning according to claim 2, wherein: The outer ring radius of the circular ring (11-1) is equal to the inner ring radius of the fixing ring (10), and the vertical length of the vertical plate (11-3) is equal to the depth of the inner cavity of the inner tank (4).

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