Food testing centrifugal separator

Abstract

The utility model provides a kind of food detection centrifugal separator, belong to food detection technical field, including box, fixedly connected with mounting panel in the box, the mounting panel is equipped with carousel, the outer periphery of carousel is equipped with assembly set, the assembly set is detachably connected with mounting panel by screw, a group of moving openings are evenly provided on carousel, sliding head is slidably connected in moving opening, the top end of sliding head is fixedly connected with test tube cover, the test tube cover is equipped with limiting mechanism.The utility model is through being equipped with moving opening, sliding head, test tube cover, connector, connecting rod, connecting plate, bearing, shaft and height adjustment mechanism, the position of sliding head is realized automatic adjustment, and then the radius of centrifugation can be changed, the size of centrifugal force can be flexibly adjusted according to the requirement of food detection, improve the effect of centrifugal separation, solve the problem that centrifugal force is constant and inconvenient to adjust in prior art.

Description

Technical Field

[0001] This utility model relates to the field of food testing technology, and more specifically, to a food testing centrifuge. Background Technology

[0002] Food safety testing involves detecting harmful substances in food according to national standards. It mainly tests for harmful and toxic indicators, such as heavy metals and aflatoxin. Centrifuges are used to extract and separate nutrients or contaminants during food testing.

[0003] A search revealed that patent application CN202421060213.9 discloses a food testing centrifuge, comprising a housing, a snap-fit ​​structure rotatably disposed within the housing, and a drive assembly for rotating the snap-fit ​​structure. The snap-fit ​​structure includes: a circular base mounted on the drive assembly; multiple limiting components arranged at equal intervals along the circumference of the base; each limiting component includes: a cylinder fixedly mounted on the base; multiple claws arranged at equal intervals along the circumference of the cylinder; and a displacement component for simultaneously moving the multiple claws closer to or further away from the axis of the cylinder. This design allows for the placement of test tubes of different sizes within the same snap-fit ​​structure, improving the efficiency of food testing to some extent. However, it still suffers from the following drawbacks:

[0004] (1) In the existing food testing centrifuges, the centrifugal radius of the test tube is constant and the centrifugal parameters are fixed, making it inconvenient to flexibly adjust the centrifugal force according to different food centrifugation requirements.

[0005] While existing food testing centrifuges can accommodate test tubes of different diameters, the diameter of the test tubes inside the cylinder is always the same during a single centrifugation, making it inconvenient to place test tubes of different diameters during centrifugation and resulting in poor flexibility.

[0006] Therefore, we have made improvements to this and proposed a food testing centrifuge. Utility Model Content

[0007] The purpose of this invention is to address the current problems of inconvenience in flexibly adjusting centrifugal force according to the needs of food testing and inconvenience in simultaneously centrifuging test tubes of different diameters.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] Food testing centrifuges are designed to improve the aforementioned problems.

[0010] The present invention is as follows:

[0011] The device includes a housing, within which a mounting plate is fixedly connected. A turntable is mounted on the mounting plate, and an assembly is provided around the turntable. This assembly is detachably connected to the mounting plate via screws. A set of movable openings are evenly spaced on the turntable, and a slider is slidably connected within each opening. A test tube sleeve is fixedly connected to the top of each slider, and a limiting mechanism is provided within the test tube sleeve. A connector is located on the lower side of the mounting plate, and a set of connecting rods are evenly rotatably connected to the connector. The tops of the connecting rods are rotatably connected to the bottoms of the sliders. A connecting plate is located on the lower side of the connector, and a bearing is fixedly connected to the center of the upper surface of the connecting plate. A rotating shaft is fixedly connected to the inner wall of the bearing's inner ring, and the top of the rotating shaft is fixedly connected to the lower surface of the connector. The bottom of the rotating shaft passes through the connecting plate and is fixedly connected to a driven gear. A first motor is fixedly connected to the connecting plate, and the drive end of the first motor passes through the connecting plate and is fixedly connected to a driving gear that meshes with the driven gear. A height adjustment mechanism for adjusting the height of the connector is located on the lower side of the connecting plate.

[0012] As a preferred technical solution of this utility model, the limiting mechanism includes a bidirectional screw rotatably disposed inside the test tube sleeve. Two mounting rings are symmetrically and threadedly connected to the bidirectional screw. Guide rods are slidably connected to both mounting rings. The upper and lower ends of the guide rods are fixedly connected to the upper and lower walls of the test tube sleeve, respectively. A set of first connecting blocks are uniformly fixedly connected to the inner side walls of the two mounting rings. An adjusting rod is rotatably connected to each of the first connecting blocks. A second connecting block is rotatably connected to the end of the adjusting rod away from the first connecting block. A clamping block is fixedly connected between adjacent upper and lower second connecting blocks. A knob is fixedly connected to the top end of the bidirectional screw.

[0013] As a preferred technical solution of this utility model, the height adjustment mechanism includes a bracket fixed to the bottom wall of the box body, a horizontal plate fixedly connected inside the bracket, a threaded rod rotatably connected between the bracket and the horizontal plate, a second motor fixedly connected to the lower end face of the horizontal plate, the drive end of the second motor passing through the horizontal plate and fixedly connected to the bottom end of the threaded rod, a lifting plate threadedly connected to the threaded rod, and lifting columns fixedly connected to both ends of the upper end face of the lifting plate, the top ends of the lifting columns passing through the top wall of the bracket and fixedly connected to the lower end face of the connecting plate.

[0014] As a preferred technical solution of this utility model, the top of the box body is rotatably connected to the box cover by a hinge, the front side wall of the box cover is provided with a groove, and a rubber pad is fixedly connected to the lower end face of the box body.

[0015] As a preferred technical solution of this utility model, an assembly plate is fixedly connected to both the left and right side walls of the box, and a handle is fixedly connected to each assembly plate.

[0016] As a preferred technical solution of this utility model, the mounting plate has a circular opening, and the diameter of the circular opening is slightly smaller than the diameter of the turntable. The diameter of the turntable is the same as the inner diameter of the mounting plate.

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

[0018] In the solution of this utility model:

[0019] 1. By setting up a movable opening, a sliding head, a test tube sleeve, a connector, a connecting rod, a connecting plate, a bearing, a rotating shaft, and a height adjustment mechanism, the position of the sliding head can be automatically adjusted, thereby changing the centrifugal radius. The centrifugal force can be flexibly adjusted according to the needs of food testing, improving the centrifugal separation effect and solving the problem of constant centrifugal force that is inconvenient to adjust in the existing technology.

[0020] 2. By using a test tube sleeve and limiting mechanism, it is possible to support and place test tubes of different diameters. During a single centrifugation, test tubes of different diameters can be placed for centrifugation, which is more flexible and solves the problem of inconvenience in placing test tubes of different diameters during a single centrifugation in the prior art. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram provided for this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 3 A schematic diagram of the structure of the mounting plate and its connecting components provided by this utility model;

[0024] Figure 4 A schematic diagram of the structure of the turntable and its connecting components provided by this utility model;

[0025] Figure 5 A schematic diagram of the limiting mechanism provided by this utility model;

[0026] Figure 6 A schematic diagram of the closed structure provided by this utility model.

[0027] The image shows:

[0028] 1. Housing; 2. Mounting plate; 3. Turntable; 4. Assembly parts; 5. Movable opening; 6. Sliding head; 7. Test tube sleeve; 8. Limiting mechanism; 801. Bidirectional screw; 802. Mounting ring; 803. Guide rod; 804. First connecting block; 805. Adjusting rod; 806. Second connecting block; 807. Clamping block; 808. Knob; 9. Connecting head; 10. Connecting rod; 11. Connecting plate; 12. Bearing; 13. Rotating shaft; 14. Driven gear; 15. First motor; 16. Driving gear; 17. Height adjustment mechanism; 1701. Bracket; 1702. Horizontal plate; 1703. Threaded rod; 1704. Second motor; 1705. Lifting plate; 1706. Lifting column; 18. Housing cover; 19. Rubber pad; 20. Assembly plate; 21. Handle. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, this embodiment proposes a food testing centrifuge, including a housing 1, a mounting plate 2 fixedly connected inside the housing 1, a turntable 3 on the mounting plate 2, and a fitting 4 on the outer periphery of the turntable 3. The fitting 4 is detachably connected to the mounting plate 2 by screws. A set of movable openings 5 ​​are evenly distributed on the turntable 3, and a slider 6 is slidably connected to each movable opening 5. A test tube sleeve 7 is fixedly connected to the top of the slider 6, and a limiting mechanism 8 is provided inside the test tube sleeve 7. A connector 9 is provided on the lower side of the mounting plate 2 for connecting... A set of connecting rods 10 are rotatably connected to the head 9. The top ends of the connecting rods 10 are rotatably connected to the bottom of the slide head 6. A connecting plate 11 is provided on the lower side of the connecting head 9. A bearing 12 is fixedly connected to the center of the upper end face of the connecting plate 11. A rotating shaft 13 is fixedly connected to the inner wall of the inner ring of the bearing 12. The top end of the rotating shaft 13 is fixedly connected to the lower end face of the connecting head 9. The bottom end of the rotating shaft 13 passes through the connecting plate 11 and is fixedly connected to a driven gear 14. A first motor 15 is fixedly connected to the connecting plate 11. The drive end of the motor 15 passes through the connecting plate 11 and is fixedly connected to the drive gear 16, which meshes with the driven gear 14. The lower side of the connecting plate 11 is provided with a height adjustment mechanism 17 for adjusting the height of the connector 9. The housing 1 serves as the outer shell of the entire centrifuge and protects the internal components. The mounting plate 2 provides a mounting base for components such as the turntable 3. The movable opening 5 provides a track for the movement of the slider 6, ensuring that the slider 6 can slide along a predetermined trajectory. The up and down movement of the connector 9 drives the connecting rod 10 to move, thereby allowing the slider 6 to slide in the movable opening 5, thus changing the centrifugal radius. The further out the slider 6 is located, the greater its centrifugal force, which allows for flexible adjustment of the centrifugal force according to different needs. The first motor 15 drives the drive gear 16 to rotate, and the meshing transmission between the drive gear 16 and the driven gear 14 drives the rotating shaft 13 to rotate. The rotation of the rotating shaft 13 drives the connector 9 to rotate, thereby causing the turntable 3 and the test tube sleeve 7 to rotate.

[0031] like Figure 1 and Figure 5As shown, in a preferred embodiment, based on the above method, the limiting mechanism 8 further includes a bidirectional screw 801 rotatably disposed within the test tube sleeve 7. Two mounting rings 802 are symmetrically and threadedly connected to the bidirectional screw 801. Guide rods 803 are slidably connected to each of the two mounting rings 802. The upper and lower ends of the guide rods 803 are fixedly connected to the upper and lower walls of the test tube sleeve 7, respectively. A set of first connecting blocks 804 are uniformly fixedly connected to the inner sidewalls of the two mounting rings 802. Adjusting rods 805 are rotatably connected to each of the first connecting blocks 804. The end of the adjusting rod 805 furthest from the first connecting block 804... A second connecting block 806 is rotatably connected, and a clamping block 807 is fixedly connected between adjacent upper and lower second connecting blocks 806. A knob 808 is fixedly connected to the top of the bidirectional screw 801. By rotating the knob 808, the bidirectional screw 801 is rotated. Two symmetrical and threaded mounting rings 802 on the bidirectional screw 801 will move simultaneously to the center or both sides under the rotation of the bidirectional screw 801. The movement of the mounting rings 802 drives the adjusting rod 805 to move, which in turn pushes the clamping blocks 807 to move, thereby adjusting the spacing between the clamping blocks 807 to facilitate the placement and support of test tubes of different diameters.

[0032] like Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, the height adjustment mechanism 17 further includes a bracket 1701 fixed to the bottom wall of the housing 1. A horizontal plate 1702 is fixedly connected inside the bracket 1701. A threaded rod 1703 is rotatably connected between the bracket 1701 and the horizontal plate 1702. A second motor 1704 is fixedly connected to the lower end face of the horizontal plate 1702. The drive end of the second motor 1704 passes through the horizontal plate 1702 and is fixedly connected to the bottom end of the threaded rod 1703. A lifting plate is threaded onto the threaded rod 1703. 1705, lifting plates 1705 are fixedly connected to both ends of the upper end face of the lifting plate 1705. The top ends of the lifting plates 1706 penetrate the top wall of the bracket 1701 and are fixedly connected to the lower end face of the connecting plate 11. The threaded rod 1703 is driven to rotate in both directions by the second motor 1704. The rotation of the threaded rod 1703 drives the lifting plate 1705 and the lifting column 1706 to rise and fall, thereby flexibly adjusting the height of the connecting head 9 and changing the position of the slider 6 in the moving opening 5 to adapt to different centrifugal separation requirements.

[0033] like Figure 1 and Figure 6As shown, in a preferred embodiment, based on the above method, the top of the box body 1 is further connected to the box cover 18 by a hinge. The front side wall of the box cover 18 is provided with a groove, and the lower end face of the box body 1 is fixedly connected to a rubber pad 19. The box cover 18 is used to close the box body 1. The groove facilitates the operator to open and close the box cover 18. The rubber pad 19 plays a role in buffering and anti-slip, reducing the vibration and noise of the equipment during operation, while preventing the equipment from sliding on the table and ensuring the stability of the equipment.

[0034] like Figure 1 and Figure 6 As shown, in a preferred embodiment, based on the above method, an assembly plate 20 is fixedly connected to both the left and right side walls of the housing 1, and a handle 21 is fixedly connected to each assembly plate 20; the assembly plate 20 provides an installation position for the handle 21, and the handle 21 facilitates the operator to move and move the equipment, thereby improving the portability of the equipment.

[0035] like Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the mounting plate 2 is further provided with a circular opening, and the diameter of the circular opening is slightly smaller than the diameter of the turntable 3. The diameter of the turntable 3 is the same as the inner diameter of the mounting assembly 4. The circular opening facilitates the normal use of the components below the mounting plate 2, and the fact that the diameter of the turntable 3 is the same as the inner diameter of the mounting assembly 4 enables the turntable 3 to rotate stably.

[0036] Specifically, when using this food testing centrifuge: First, adjust the accommodating space in the test tube sleeve 7, and place test tubes of different or the same diameter into the test tube sleeve 7. Then, rotate the knob 808 to drive the bidirectional screw 801 to rotate. The two symmetrically threaded mounting rings 802 on the bidirectional screw 801 will move simultaneously to the center or sides under the rotation of the bidirectional screw 801. The movement of the mounting rings 802 drives the adjusting rod 805 to move, which in turn pushes the clamping block 807 to move, so that the clamping block 807 clamps the test tubes. When it is necessary to adjust the centrifugal force, the second motor 1704 drives the threaded rod 1703 to rotate in both directions. The rotation of the threaded rod 1703... The lifting plate 1705 and the lifting column 1706 are raised and lowered. The height adjustment of the lifting column 1706 causes the connecting plate 11, bearing 12 and rotating shaft 13 to move accordingly, which in turn causes the connecting head 9 to rise and fall. The up and down movement of the connecting head 9 causes the connecting rod 10 to move, so that the slider 6 slides in the moving opening 5, thereby changing the centrifugal radius. After the centrifugal radius is adjusted, the first motor 15 drives the drive gear 16 to rotate. Then, through the meshing transmission of the drive gear 16 and the driven gear 14, the rotating shaft 13 is driven to rotate. The rotation of the rotating shaft 13 causes the connecting head 9 to rotate, thereby causing the turntable 3 and the test tube sleeve 7 to rotate, thereby centrifuging and separating the food in the test tube.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A food testing centrifuge, comprising a housing (1), characterized in that, An installation plate (2) is fixedly connected inside the housing (1). A turntable (3) is provided on the installation plate (2). An assembly (4) is provided on the outer periphery of the turntable (3). The assembly (4) is detachably connected to the installation plate (2) by screws. A set of movable openings (5) are evenly opened on the turntable (3). A slider (6) is slidably connected in each of the movable openings (5). A test tube sleeve (7) is fixedly connected to the top of the slider (6). A limiting mechanism (8) is provided in the test tube sleeve (7). A connector (9) is provided on the lower side of the installation plate (2). A set of connecting rods (10) are evenly rotatably connected to the connector (9). The top of the connecting rods (10) is rotatably connected to the bottom of the slider (6). A connecting plate (11) is provided on the lower side of the connector (9). A bearing (12) is fixedly connected to the center of the upper end face of the connecting plate (11). A rotating shaft (13) is fixedly connected to the inner side wall of the inner ring of the bearing (12). The top end of the rotating shaft (13) is fixedly connected to the lower end face of the connector (9). The bottom end of the rotating shaft (13) passes through the connecting plate (11) and is fixedly connected to a driven gear (14). A first motor (15) is fixedly connected to the connecting plate (11). The driving end of the first motor (15) passes through the connecting plate (11) and is fixedly connected to a driving gear (16) that meshes with the driven gear (14). A height adjustment mechanism (17) for adjusting the height of the connector (9) is provided on the lower side of the connecting plate (11).

2. The food testing centrifuge according to claim 1, characterized in that, The limiting mechanism (8) includes a bidirectional screw (801) rotatably disposed inside the test tube sleeve (7). Two mounting rings (802) are symmetrically and threadedly connected to the bidirectional screw (801). Guide rods (803) are slidably connected to both mounting rings (802). The upper and lower ends of the guide rods (803) are fixedly connected to the upper and lower walls of the test tube sleeve (7), respectively. A set of first connecting blocks (804) are evenly fixedly connected to the inner side walls of the two mounting rings (802). Adjusting rods (805) are rotatably connected to each of the first connecting blocks (804). A second connecting block (806) is rotatably connected to the end of the adjusting rod (805) away from the first connecting block (804). A clamping block (807) is fixedly connected between adjacent second connecting blocks (806). A knob (808) is fixedly connected to the top end of the bidirectional screw (801).

3. The food testing centrifuge according to claim 1, characterized in that, The height adjustment mechanism (17) includes a bracket (1701) fixed on the bottom wall of the box (1). A horizontal plate (1702) is fixedly connected inside the bracket (1701). A threaded rod (1703) is rotatably connected between the bracket (1701) and the horizontal plate (1702). A second motor (1704) is fixedly connected to the lower end face of the horizontal plate (1702). The driving end of the second motor (1704) passes through the horizontal plate (1702) and is fixedly connected to the bottom end of the threaded rod (1703). A lifting plate (1705) is threadedly connected to the threaded rod (1703). Lifting columns (1706) are fixedly connected to both ends of the upper end face of the lifting plate (1705). The top ends of the lifting columns (1706) pass through the top wall of the bracket (1701) and are fixedly connected to the lower end face of the connecting plate (11).

4. A food testing centrifuge according to claim 1, characterized in that, The top of the box (1) is connected to a box cover (18) by a hinge. The front side wall of the box cover (18) is provided with a groove. A rubber pad (19) is fixedly connected to the lower end face of the box (1).

5. A food testing centrifuge according to claim 1, characterized in that, Assembly plates (20) are fixedly connected to the left and right side walls of the box (1), and handles (21) are fixedly connected to the assembly plates (20).

6. A food testing centrifuge according to claim 1, characterized in that, The mounting plate (2) has a circular opening, and the diameter of the circular opening is slightly smaller than the diameter of the turntable (3). The diameter of the turntable (3) is the same as the inner diameter of the mounting set (4).

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