Biological sample homogenizer

Abstract

The utility model relates to the technical field of experimental equipment, and particularly discloses a biological sample homogenizer which comprises a base, a first lifting column and a second lifting column are arranged at the upper end of the base, a first movable plate is sleeved on the outer side of the first lifting column, and the first movable plate is in sliding connection with the first lifting column. A third motor and a stirring shaft are arranged at the end, away from the first lifting column, of the first movable plate, and a second movable plate sleeves the second lifting column, is arranged below the first movable plate and is in sliding connection with the second lifting column. Two lifting columns are arranged on the base, the first lifting column can control the first movable plate to fall down, and the stirring shaft homogenizes and uniformly stirs the liquid through the stirring head. A second lifting column pushes a gland to fall down through a second movable plate, and the gland slides along a shaft body of the stirring shaft, so that the liquid attached to the outer side of the stirring shaft can be cleaned into a vessel. Meanwhile, the container can be sealed from the upper end of the container, so that the liquid in the container cannot splash in the stirring process, and the experiment safety is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental equipment, in particular to a biological sample homogenizer. Background Art

[0002] With the development of biomedicine, petrochemical, food industry and other fields, more and more homogenizers are used. The development of the laboratory instrument industry has also provided a variety of homogenizers with different functions for the laboratories of the above industries. The principle of the commonly used homogenizer in the laboratory is to mix the experimental sample and the solution or solvent evenly to achieve the standard solution required by the experiment.

[0003] The Chinese patent application number is CN202120746960.8, which discloses a homogenizer, which includes a support platform, a support column, a support plate, a drive motor, a fixed bin, a fixed component, a connecting rod, a tool, a slide, a movable plate, an opening, a fixing device and a cleaning component. The support platform is a hollow cavity structure, the support column is arranged at one end of the support platform, the support plate is arranged on the support column, the drive motor is embedded in the support plate, the fixed bin is arranged under the support plate, the fixed component is arranged in the fixed bin, the connecting rod is arranged under the fixed component, the tool is arranged under the connecting rod, the slide is arranged on the support platform, the movable plate can be movably arranged in the slide, the opening is arranged in the slide and under the tool, the fixing device is arranged on the movable plate, and the cleaning component is arranged in the support platform, which can play a cleaning role. This type of homogenizer usually homogenizes and mixes the liquid by inserting a connecting rod with a knife deep into the vessel and rotating the knife. Since the upper ends of some vessels are mostly open structures, when the knife with the connecting rod is inserted into the vessel and rotates, if it rotates too fast, the liquid in the vessel will easily splash out, affecting the progress of the experiment. Utility Model Content

[0004] In view of the above problems, the utility model provides a biological sample homogenizer to solve the disadvantage of the existing homogenizer that when a cutter with a connecting rod is inserted deep into a container and rotated, if the rotation is too fast, the liquid in the container is prone to splashing.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a biological sample homogenizer, including a base, a first lifting column and a second lifting column are arranged on the upper end of the base, and the first lifting column and the second lifting column are fixedly connected to the base;

[0006] A first movable plate is sleeved on the outer side of the first lifting column, the first movable plate is slidably connected to the first lifting column, a third motor is provided at one end of the first movable plate away from the first lifting column, the mounting end of the third motor is fixedly connected to the first movable plate, the output end of the third motor is fixedly connected to a stirring shaft provided at the lower end of the first movable plate, and a stirring head is provided at the lower end of the stirring shaft;

[0007] A second movable plate is sleeved on the outer side of the second lifting column, the second movable plate is placed under the first movable plate and is slidably connected to the second lifting column, a pressure cover is provided on the end of the second movable plate away from the second lifting column, the pressure cover is sleeved on the outer side of the stirring shaft and is slidably connected to the stirring shaft, and a side clamp for fixing the container is provided under the pressure cover.

[0008] A further improvement is that the side clamp includes a placement ring arranged at the upper end of the base, at least two positioning plates are provided at the upper end of the placement ring, the lower end of the positioning plate is fixedly connected to the placement ring, and a plurality of positioning bolts are installed on the positioning plate, which pass through the positioning plate and are threadedly connected to the positioning plate.

[0009] Further improvements are: the first lifting column includes a first hollow cylinder, the lower end of the first hollow cylinder is fixedly connected to the upper end of the base, the upper end of the first hollow cylinder is provided with a first motor, the output end of the first motor is fixedly connected to the upper end of the first screw arranged in the first hollow cylinder, a first nut seat is sleeved on the outer side of the first screw, the first nut seat is threadedly connected to the first screw, a limiting ridge is provided on the outer side of the first nut seat, the limiting ridge is slidably connected to the limiting ridge groove provided on the outer side of the first hollow cylinder, and the limiting ridge is fixedly connected to the first movable plate on the side away from the first nut seat.

[0010] A further improvement is that the second lifting column includes a second hollow cylinder, the lower end of the second hollow cylinder is fixedly connected to the upper end of the base, the upper end of the second hollow cylinder is provided with a second motor, the output end of the second motor is fixedly connected to the upper end of the second screw arranged in the second hollow cylinder, a second nut seat is sleeved on the outer side of the second screw, the second nut seat is threadedly connected to the second screw, a guide ridge is provided on the outer side of the second nut seat, the guide ridge is slidably connected to the guide ridge groove opened on the outer side of the second hollow cylinder, and the guide ridge is fixedly connected to the second movable plate on the side away from the second nut seat.

[0011] A further improvement is that the second movable plate is sleeved on the outside of the first hollow cylinder and is slidably connected to the first hollow cylinder.

[0012] A further improvement is that a limiting rod is provided at the upper end of the base, the lower end of the limiting rod is fixedly connected to the base, and the upper end of the limiting rod passes through the second movable plate and the first movable plate in sequence and is slidably connected to the second movable plate and the first movable plate.

[0013] The beneficial effects of the utility model are as follows: two lifting columns are arranged on the base, the first lifting column can control the first movable plate to fall, and the stirring shaft homogenizes the liquid through the stirring head. The second lifting column pushes the gland to fall through the second movable plate, and the gland slides along the shaft of the stirring shaft, and can clean the liquid attached to the outside of the stirring shaft into the vessel. At the same time, the vessel is also sealed from the top, and during the stirring process, the liquid in the vessel will not splash, effectively ensuring the safety of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the first movable plate in the utility model.

[0015] Figure 2 It is a structural diagram of the second movable plate in the utility model.

[0016] Figure 3 It is a cross-sectional view of the first hollow cylinder in the utility model.

[0017] Figure 4 It is a cross-sectional view of the second hollow cylinder in the utility model.

[0018] Among them: 1. base; 2. limit rod; 3. first hollow cylinder; 4. second hollow cylinder; 5. first motor; 6. second motor; 7. first movable plate; 8. third motor; 9. stirring shaft; 10. pressure cover; 11. second movable plate; 12. placement ring; 13. positioning plate; 14. positioning bolt; 15. stirring head; 16. first screw; 17. first nut seat; 18. limit rib groove; 19. second screw; 20. second nut seat; 21. guide rib groove. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0020] according to Figure 1 , 2 As shown in , 3 and 4, a biological sample homogenizer is proposed in this embodiment, including a base 1, a first lifting column and a second lifting column are provided at the upper end of the base 1, and the first lifting column and the second lifting column are fixedly connected to the base 1;

[0021] A first movable plate 7 is sleeved on the outer side of the first lifting column, and the first movable plate 7 is slidably connected to the first lifting column. A third motor 8 is provided at one end of the first movable plate 7 away from the first lifting column. The mounting end of the third motor 8 is fixedly connected to the first movable plate 7, and the output end of the third motor 8 is fixedly connected to a stirring shaft 9 arranged at the lower end of the first movable plate 7. A stirring head 15 is arranged at the lower end of the stirring shaft 9; a biological sample vessel is fixed at the upper end of the second movable plate 11, and the first lifting column can control the first movable plate 7 to fall. When the first movable plate 7 falls, the stirring head 15 at the lower end of the stirring shaft 9 will be inserted into the vessel, and the third motor 8 drives the stirring shaft 9 to rotate, and the stirring shaft 9 stirs the liquid agent homogenously through the stirring head 15.

[0022] A second movable plate 11 is sleeved on the outside of the second lifting column. The second movable plate 11 is placed under the first movable plate 7 and is slidably connected to the second lifting column. A pressure cover 10 is provided at one end of the second movable plate 11 away from the second lifting column. The pressure cover 10 is sleeved on the outside of the stirring shaft 9 and is slidably connected to the stirring shaft 9. A side clamp for fixing the container is provided below the pressure cover 10. When the second lifting column pushes the second movable plate 11 to fall, the second movable plate 11 will drive the pressure cover 10 to fall together. The pressure cover 10 slides along the shaft of the stirring shaft 9 and can clean the liquid attached to the outside of the stirring shaft 9 into the container. The pressure cover 10 will cover the upper end of the container at this time to seal the container. During the stirring process, the liquid in the container will not splash, effectively ensuring the safety of the experiment.

[0023] More specifically, the side clamp includes a placement ring 12 disposed at the upper end of the base 1, at least two positioning plates 13 are disposed at the upper end of the placement ring 12, the lower end of the positioning plates 13 is fixedly connected to the placement ring 12, and a plurality of positioning bolts 14 are mounted on the positioning plates 13, and the positioning bolts 14 pass through the positioning plates 13 and are threadedly connected to the positioning plates 13. The bottom of the vessel containing the biological sample is placed in the placement ring 12, and each positioning plate 13 surrounds the vessel. By rotating the positioning bolts 14 to make the positioning bolts 14 contact the outer wall of the vessel, the vessel can be fixed from the side wall of the vessel. In order to prevent the positioning bolts 14 from causing damage to the outer wall of the vessel, an arc-shaped rubber pressure plate is provided at one end of the positioning bolts 14 close to the vessel.

[0024] The first lifting column is used to control the height of the first movable plate 7 and the stirring head 15, and the second lifting column is used to control the height of the second movable plate 11 and the pressure cover 10. The first lifting column includes a first hollow cylinder 3, the lower end of the first hollow cylinder 3 is fixedly connected to the upper end of the base 1, the upper end of the first hollow cylinder 3 is provided with a first motor 5, the output end of the first motor 5 is fixedly connected to the upper end of the first screw 16 arranged in the first hollow cylinder 3, the outer side of the first screw 16 is sleeved with a first nut seat 17, the first nut seat 17 is threadedly connected to the first screw 16, the outer side of the first nut seat 17 is provided with a limiting ridge, the limiting ridge is slidably connected to the limiting ridge groove 18 provided on the outer side of the first hollow cylinder 3, and the limiting ridge is fixedly connected to the first movable plate 7 on the side away from the first nut seat 17.

[0025] When adjusting the height, the first motor 5 will drive the first screw 16 to rotate, and the first screw 16 will drive the first nut seat 17 to rise and fall along the rod body of the first screw 16 by cooperating with the thread of the first nut seat 17. When the first nut seat 17 moves up and down in the first hollow cylinder 3, the first movable plate 7 fixed to the first nut seat 17 by the limiting edge will also rise and fall along the outer wall of the first hollow cylinder 3. The limiting edge groove 18 will limit the first nut seat 17 and the first movable plate 7 by sliding cooperation with the limiting edge to prevent the first nut seat 17 and the first movable plate 7 from deflecting during action.

[0026] In addition, the second lifting column includes a second hollow cylinder 4, the lower end of the second hollow cylinder 4 is fixedly connected to the upper end of the base 1, the upper end of the second hollow cylinder 4 is provided with a second motor 6, the output end of the second motor 6 is fixedly connected to the upper end of the second screw 19 provided in the second hollow cylinder 4, the second screw 19 is sleeved with a second nut seat 20 on the outer side, the second nut seat 20 is threadedly connected to the second screw 19, the second nut seat 20 is provided with a guide rib on the outer side of the second nut seat 20, the guide rib is slidably connected to the guide rib groove 21 provided on the outer side of the second hollow cylinder 4, and the guide rib is fixedly connected to the second movable plate 11 on the side away from the second nut seat 20. The working principle of the second lifting column is the same as that of the first lifting column, and no more explanation is given here.

[0027] In order to keep the second movable plate 11 stable during the lifting process, the second movable plate 11 is sleeved on the outside of the first hollow cylinder 3 and is slidably connected to the first hollow cylinder 3. When the second nut seat 20 in the second hollow cylinder 4 drives the second movable plate 11 outside the second hollow cylinder 4 to adjust the height, the second movable plate 11 can slide along the outer wall of the first hollow cylinder 3 in addition to sliding along the outer wall of the second hollow cylinder 4. The first hollow cylinder 3 can guide the second movable plate 11 through the sliding cooperation with the second movable plate 11, thereby improving the stability of the second movable plate 11 during lifting and lowering.

[0028] In order to further improve the stability of the first movable plate 7 and the second movable plate 11 when they are lifted or lowered, a limiting rod 2 is provided at the upper end of the base 1, the lower end of the limiting rod 2 is fixedly connected to the base 1, and the upper end of the limiting rod 2 passes through the second movable plate 11 and the first movable plate 7 in sequence and is slidably connected with the second movable plate 11 and the first movable plate 7. The limiting rod 2 penetrates the second movable plate 11 and the first movable plate 7, and when the first lifting column and the second lifting column drive the first movable plate 7 and the second movable plate 11 to be lifted or lowered, the first movable plate 7 and the second movable plate 11 will slide along the limiting rod 2, and the limiting rod 2 limits the first movable plate 7 and the second movable plate 11 by cooperating with the first movable plate 7 and the second movable plate 11, which can further improve the stability of the first movable plate 7 and the second movable plate 11 when they are lifted or lowered.

[0029] The difference from the existing homogenizer is that the outer side of the stirring shaft 9 is provided with a pressure cover 10, and the biological sample vessel is fixed on the upper end of the second movable plate 11. The first lifting column can control the first movable plate 7 to fall down. When the first movable plate 7 falls down, the stirring head 15 at the lower end of the stirring shaft 9 will be inserted into the vessel. The third motor 8 drives the stirring shaft 9 to rotate, and the stirring shaft 9 homogenizes the liquid through the stirring head 15. The second lifting column pushes the pressure cover 10 to fall through the second movable plate 11. The pressure cover 10 will slide along the shaft body of the stirring shaft 9 and can clean the liquid attached to the outer side of the stirring shaft 9 into the vessel. At the same time, the pressure cover 10 will also cover the upper end of the vessel to seal the vessel. During the stirring process, the liquid in the vessel will not splash, effectively ensuring the safety of the experiment.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A biological sample homogenizer, comprising a base (1), characterized in that: A first lifting column and a second lifting column are provided at the upper end of the base (1), and the first lifting column and the second lifting column are both fixedly connected to the base (1); A first movable plate (7) is sleeved on the outer side of the first lifting column, the first movable plate (7) is slidably connected to the first lifting column, a third motor (8) is provided at one end of the first movable plate (7) away from the first lifting column, the mounting end of the third motor (8) is fixedly connected to the first movable plate (7), the output end of the third motor (8) is fixedly connected to a stirring shaft (9) provided at the lower end of the first movable plate (7), and a stirring head (15) is provided at the lower end of the stirring shaft (9); A second movable plate (11) is sleeved on the outer side of the second lifting column. The second movable plate (11) is placed below the first movable plate (7) and is slidably connected to the second lifting column. A pressure cover (10) is provided at one end of the second movable plate (11) away from the second lifting column. The pressure cover (10) is sleeved on the outer side of the stirring shaft (9) and is slidably connected to the stirring shaft (9). A side clamp for fixing a container is provided below the pressure cover (10).

2. A biological sample homogenizer according to claim 1, characterized in that: The side clamp comprises a placement ring (12) arranged at the upper end of the base (1), the upper end of the placement ring (12) is provided with at least two positioning plates (13), the lower end of the positioning plate (13) is fixedly connected to the placement ring (12), and the positioning plate (13) is equipped with a plurality of positioning bolts (14), and the positioning bolts (14) pass through the positioning plate (13) and are threadedly connected to the positioning plate (13).

3. A biological sample homogenizer according to claim 1, characterized in that: The first lifting column comprises a first hollow cylinder (3), the lower end of the first hollow cylinder (3) is fixedly connected to the upper end of the base (1), the upper end of the first hollow cylinder (3) is provided with a first motor (5), the output end of the first motor (5) is fixedly connected to the upper end of a first screw rod (16) arranged in the first hollow cylinder (3), a first nut seat (17) is sleeved on the outer side of the first screw rod (16), the first nut seat (17) is threadedly connected to the first screw rod (16), a limiting edge is provided on the outer side of the first nut seat (17), the limiting edge is slidably connected to a limiting edge groove (18) provided on the outer side of the first hollow cylinder (3), and the limiting edge is fixedly connected to the first movable plate (7) on the side away from the first nut seat (17).

4. A biological sample homogenizer according to claim 3, characterized in that: The second lifting column comprises a second hollow cylinder (4), the lower end of the second hollow cylinder (4) is fixedly connected to the upper end of the base (1), the upper end of the second hollow cylinder (4) is provided with a second motor (6), the output end of the second motor (6) is fixedly connected to the upper end of a second screw rod (19) arranged in the second hollow cylinder (4), a second nut seat (20) is sleeved on the outer side of the second screw rod (19), the second nut seat (20) is threadedly connected to the second screw rod (19), a guide ridge is provided on the outer side of the second nut seat (20), the guide ridge is slidably connected to a guide ridge groove (21) provided on the outer side of the second hollow cylinder (4), and the side of the guide ridge away from the second nut seat (20) is fixedly connected to the second movable plate (11).

5. A biological sample homogenizer according to claim 4, characterized in that: The second movable plate (11) is sleeved on the outside of the first hollow cylinder (3) and is slidably connected to the first hollow cylinder (3).

6. A biological sample homogenizer according to claim 4, characterized in that: A limiting rod (2) is provided at the upper end of the base (1), the lower end of the limiting rod (2) is fixedly connected to the base (1), and the upper end of the limiting rod (2) passes through the second movable plate (11) and the first movable plate (7) in sequence and is slidably connected to the second movable plate (11) and the first movable plate (7).

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