Adjustable low-speed centrifugal machine

Abstract

The utility model discloses an adjustable low-speed centrifugal machine which comprises a shell, an upper shell cover is arranged above the shell, a centrifugal disc is rotatably connected in the shell, a turning cover is hinged to one side of the upper shell cover, a torsion spring is arranged between the turning cover and the upper shell cover, the turning cover is provided with a clamping head, and the clamping head is provided with a clamping groove. A spring locking mechanism matched with the clamping head is arranged in the shell, an unlocking mechanism is arranged on one side of the spring locking mechanism, a base is arranged on the inner side of the upper shell cover and connected with a sliding lock plate in a sliding mode, one end of the base is connected with one end of a tension spring, the other end of the tension spring is connected to the sliding lock plate, and the other end of the tension spring is connected with the upper shell cover. According to the centrifugal cover, self-locking can be mainly achieved during centrifugal work, influences caused by the fact that the cover is opened by mistake are avoided, and safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an adjustable low-speed centrifuge. Background Technology

[0002] Low-speed centrifuges are widely used in clinical medicine, biochemistry, immunology, blood banks and other fields. They are routine instruments used in laboratories for centrifugation and precipitation. However, the lid of a low-speed centrifuge must not be opened while it is in operation to avoid accidents. However, the lids in the current technology are basically fixed by spring locks and do not have a self-locking function. Therefore, during use, the lid opening switch may be accidentally touched by the staff, causing the switch to be accidentally activated and opening the lid, resulting in accidents or affecting the normal operation of the work. Utility Model Content

[0003] In view of the above-mentioned prior art, the present invention provides an adjustable low-speed centrifuge, which can achieve self-locking during centrifugation to prevent the lid from being accidentally opened and thus improve safety.

[0004] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0005] An adjustable low-speed centrifuge includes a housing, an upper cover on top of the housing, a centrifuge disc rotatably connected inside the housing, a flip cover hinged to one side of the upper cover, a torsion spring between the flip cover and the upper cover, a latch on the flip cover, a spring locking mechanism cooperating with the latch inside the housing, an unlocking mechanism on one side of the spring locking mechanism, a base inside the upper cover, a sliding lock plate slidably connected to the base, a tension spring connected to one end of the base, the other end of the tension spring connected to the sliding lock plate, and an electromagnet at the other end of the base.

[0006] Furthermore, the spring locking mechanism includes a movable component, a locking block, a second compression spring, a connecting block, and a baffle. The movable components are symmetrically arranged and movably connected to the housing. The locking block is connected to the movable component. One end of the second compression spring is connected to the movable component, and the other end of the second compression spring is connected to the baffle. Each movable component is provided with the connecting block. The unlocking mechanism includes a conical block, a vertical plate, a first compression spring, and a button. The conical block includes a round rod, and the button is connected to the round rod. The vertical plate is connected to the housing, and the round rod passes through the vertical plate for movable connection. The first compression spring is sleeved on the round rod, and one end of the first compression spring is connected to the vertical plate. The other end of the first compression spring is connected to the button. The conical block pushes into the connecting blocks to separate the locking block, and the button passes through the front end of the upper housing.

[0007] Furthermore, the base is provided with a sliding groove, the sliding lock plate is movably connected in the sliding groove, the sliding lock plate is provided with a round hole, the round rod is installed through the round hole, and the base is provided with a limiting block.

[0008] Furthermore, the spring locking mechanism also includes a slide rail and a slider, the slider being connected to the housing, the slider and the slide rail being connected in cooperation, and the movable part being mounted on the slider.

[0009] Furthermore, the locking block has an inclined surface, and the front end of the locking block has an arc-shaped groove.

[0010] Furthermore, a centrifugal shaft is provided inside the housing, the centrifugal disc is mounted on the centrifugal shaft by bolts, and a motor is provided inside the housing, the output end of the motor is connected to the centrifugal shaft.

[0011] Furthermore, the output end of the motor is connected to a first gear, and the centrifugal shaft is provided with a second gear that meshes with the first gear.

[0012] Furthermore, a counterweight is provided at the bottom of the housing, and the motor is mounted on the counterweight.

[0013] Furthermore, the round rod has an external thread, the button has an internal thread, and the button is threadedly connected to the round rod.

[0014] Furthermore, the upper shell is provided with a column, one end of which is connected to the upper shell and the other end is connected to the housing by a thread.

[0015] The beneficial effects of this utility model are as follows: Centrifuge tubes are symmetrically placed on a centrifuge tray. Flipping the cover causes the locking head to engage with the spring locking mechanism and secure it. The centrifuge tray is rotated for centrifugation and sedimentation. At the same time, the electromagnet is energized and magnetized, attracting the sliding lock plate and locking the unlocking mechanism, preventing the unlocking mechanism from opening the spring locking mechanism. After the centrifugation is completed, the electromagnet is de-energized and demagnetized. The sliding lock plate is reset under the tension of the tension spring. The technician can then briefly activate the unlocking mechanism to flip the cover and remove the centrifuge tubes. The electromagnet, when energized, moves the sliding lock plate to lock the unlocking mechanism, preventing accidental activation of the unlocking mechanism during operation and avoiding any impact or safety hazards caused by the cover opening during operation, thus improving safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an adjustable low-speed centrifuge according to an embodiment of this application;

[0017] Figure 2 This is an enlarged view of point A in an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the unlocking mechanism and the sliding lock plate in the embodiments of this application;

[0019] Figure 4 This is a schematic diagram of the structure of the spring locking mechanism and the unlocking mechanism in the embodiments of this application;

[0020] Figure 5 This is a schematic diagram of the structure at the motor in an embodiment of this application;

[0021] Figure 6 This is a schematic diagram of the structure of an adjustable low-speed centrifuge according to an embodiment of this application;

[0022] Explanation of icon numbers:

[0023] 101. Housing; 1. Upper housing cover; 2. Centrifuge disc; 3. Flip cover; 4. Torsion spring; 5. Clip; 6. Spring locking mechanism; 7. Unlocking mechanism; 8. Base; 9. Slide lock plate; 10. Tension spring; 11. Electromagnet; 12. Moving part; 13. Locking block; 14. Second compression spring; 15. Connecting block; 16. Baffle; 17. Conical block; 18. Vertical plate; 19. First compression spring; 20. Button; 21. Round rod; 22. Slide groove; 23. Round hole; 24. Limiting block; 25. Through hole; 26. Slide rail; 27. Slider; 28. Inclined surface; 29. ​​Arc groove; 30. Centrifuge shaft; 31. Motor; 32. First gear; 33. Second gear; 34. Counterweight; 35. Column; 36. Connecting shaft; 37. Cylindrical head; 38. Threaded hole; 39. Mounting hole; 40. Control panel. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0025] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Example 1

[0027] See attached document Figure 1-6 This application provides an adjustable low-speed centrifuge, including a housing 101. The housing 101 is provided with a control panel 40. An upper cover 1 is provided on the top of the housing 101, and the bottom surface of the upper cover 1 is connected to the top surface of the housing 101. A centrifuge disc 2 is rotatably connected inside the housing 101. The centrifuge disc 2 is evenly distributed with a plurality of centrifuge holes for installing centrifuge tubes. The centrifuge holes are provided with a removable silicone soft layer to facilitate fixing and protect the centrifuge tubes and prevent them from shaking and breaking during centrifugation. A flip cover 3 is hinged to one side of the upper cover 1. A torsion spring 4 is provided between the flip cover 3 and the upper cover 1. The torsion spring 4 allows the flip cover 3 to be opened when no external force is applied. The flip cover 3 is provided with a latch 5, which consists of a connecting shaft 36 and an end cylindrical head 37. The front end of the cylindrical head 37 is chamfered. The housing 101 is provided with a spring locking mechanism 6 that cooperates with the latch 5. The upper cover plate is provided with a through hole 25 for the latch 5 to pass through. Flipping the flip cover 3 causes the latch 5 to engage with the spring locking mechanism 6 and lock the flip cover 3 in place. An unlocking mechanism 7 is provided on one side of the spring locking mechanism 6. The unlocking mechanism 7 is used to open the spring locking mechanism 6, allowing the flip cover to be opened. The opening of the flip cover 3 is achieved by disengaging the locking head 5 from the spring locking mechanism 6. A base 8 is located inside the upper shell 1, and a sliding locking plate 9 is slidably connected to the base 8. One end of a tension spring 10 is fixedly connected to one end of the base 8, and the other end of the tension spring 10 is fixedly connected to the sliding locking plate 9. An electromagnet 11 is located at the other end of the base 8 and is electrically connected to a power source. During operation, the technician places the centrifuge tubes symmetrically on the centrifuge tray 2, flips the flip cover 3 so that the locking head 5 engages with the spring locking mechanism 6 and is locked in place. The centrifuge tray 2 is then rotated for centrifugal sedimentation. When the electromagnet 11 is energized, it attracts the sliding lock plate 9, which moves and locks the unlocking mechanism 7, preventing the unlocking mechanism 7 from opening the spring locking mechanism 6. After the centrifugation operation is completed, the electromagnet 11 is de-energized and demagnetized. The sliding lock plate 9 returns to its original position under the tension of the tension spring 10. The technician can then use the unlocking mechanism 7 to open the flip cover 3 and remove the centrifuge tube. The electromagnet 11, when energized, moves the sliding lock plate 9 to lock the unlocking mechanism 7, thus preventing accidental activation of the unlocking mechanism 7 during operation and avoiding any impact or safety hazard caused by the flip cover 3 opening during operation, thereby improving safety.

[0028] Specifically, the spring locking mechanism 6 includes a movable member 12, a locking block 13, a second compression spring 14, a connecting block 15, and a baffle 16. The movable member 12 is symmetrically arranged and movably connected to the housing 101. The locking block 13 is connected to the movable member 12. One end of the second compression spring 14 is connected to the movable member 12, and the other end is connected to the baffle 16. The second compression spring 14 pushes the movable member 12 forward, causing the locking blocks 13 to approach each other. When the latch 5 is inserted between the locking blocks 13, it pushes the locking blocks 13 to move outward. At this time, the second compression spring 14 is compressed. When the cylindrical head 37 of the latch 5 passes through the locking block 13, the locking block 13 moves inward under the action of the second compression spring 14 to clamp the latch 5 and fix it. At this time, the top of the cylindrical head 37 contacts the bottom surface of the locking block 13. The connecting block 15 is provided on the same side of the locking mechanism 7, which includes a conical block 17, a vertical plate 18, a first compression spring 19, and a button 20. The conical block 17 includes a round rod 21, and the button 20 is connected to one end of the round rod 21. The vertical plate 18 is connected to the housing 101, and the round rod 21 passes through the vertical plate 18 for movable connection. The first compression spring 19 is sleeved on the round rod 21, with one end of the first compression spring 19 connected to the vertical plate 18 and the other end of the first compression spring 19 connected to the button 20. By pressing the button 20, the conical block 17 moves forward and pushes the connecting block 15 forward, causing the locking block 13 to move outward. The conical block 17 pushes between the connecting blocks 15, causing the locking block 13 to separate, releasing the latch 5, and unlocking. The first compression spring 19 serves to reset the button 20. The button 20 passes through the front end of the upper housing 1 for easy operation.

[0029] Specifically, the base 8 is provided with a sliding groove 22, and the sliding lock plate 9 is movably connected in the sliding groove 22. The sliding lock plate 9 is provided with a circular hole 23, the diameter of which is larger than that of the button 20, to prevent the button 20 from passing through the circular hole 23 to unlock when the electromagnet 11 is not energized. The circular rod 21 is installed through the circular hole 23. The base 8 is provided with a limiting block 24 to limit the sliding lock plate 9 and determine its initial position. In the initial position, the button 20 can pass through the circular hole 23 to unlock. The structure is simple.

[0030] Specifically, the spring locking mechanism 6 further includes a slide rail 26 and a slider 27. The slider 27 is connected to the housing 101. The slider 27 and the slide rail 26 are connected in cooperation. The movable part 12 is installed on the slider 27 to realize the movement of the movable part 12, reduce friction, and achieve high stability.

[0031] Specifically, the locking block 13 has an inclined surface 28, which makes it easier to push the locking block 13 to move when the clamp head 5 is inserted downwards. The front end of the locking block 13 has an arc groove 29, which cooperates with the connecting shaft 36 of the clamp head 5 to improve stability.

[0032] Specifically, the housing 101 contains a centrifugal shaft 30, and the centrifugal disc 2 is bolted to the centrifugal shaft 30. The housing 101 also contains a motor 31. Optionally, the housing 101 has a window for easy installation of the motor 31. The output end of the motor 31 is connected to the centrifugal shaft 30, and the motor 31 is electrically connected to a power source. The electromagnet 11 and the motor 31 are connected in series. When the motor 31 is energized, the electromagnet 11 is also energized, thereby locking the unlocking mechanism 7 while centrifuging. When the operation is finished, the motor 31 is de-energized, and the electromagnet 11 is de-energized and demagnetized. This design is simple to operate and provides higher safety.

[0033] Example 2

[0034] See attached document Figure 1-6 The difference between this embodiment and embodiment 1 is that the output end of the motor 31 is connected to a first gear 32, and the centrifugal shaft 30 is provided with a second gear 33 that meshes with the first gear 32. The first gear 32 is larger than the second gear 33. The motor 31 drives the first gear 32 to rotate, which in turn drives the second gear 33 to rotate, thereby realizing the rotation of the centrifugal shaft 30, increasing the speed and stabilizing the transmission.

[0035] Specifically, the bottom of the housing 101 is provided with a counterweight 34, and the motor 31 is mounted on the counterweight 34. The counterweight 34 is used to balance the weight and improve stability.

[0036] Specifically, the round rod 21 has an external thread, and the button 20 has an internal thread. The button 20 is connected to the round rod 21 by the thread, which facilitates the installation of the button 20 and has a simple structure.

[0037] Specifically, the upper shell cover 1 is provided with a column 35. One end of the column 35 is connected to the upper shell cover 1, and the other end is connected to the housing 101 by a thread. The column 35 is provided with a threaded hole 38, and the housing 101 is provided with a mounting hole 39 at the bottom. The upper shell cover 1 is fixed by inserting a bolt into the mounting hole 39 and the threaded hole 38 to lock it in place. This facilitates the installation and disassembly of the upper shell cover 1 for cleaning and maintenance, and the structure is simple.

[0038] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. An adjustable slow speed centrifuge characterized by, The device includes a housing, with an upper cover on top. A centrifugal disc is rotatably connected inside the housing. A flip cover is hinged to one side of the upper cover. A torsion spring is provided between the flip cover and the upper cover. The flip cover has a locking head. A spring locking mechanism that cooperates with the locking head is provided inside the housing. An unlocking mechanism is provided on one side of the spring locking mechanism. A base is provided on the inner side of the upper cover. A sliding lock plate is slidably connected to the base. One end of the base is connected to one end of a tension spring. The other end of the tension spring is connected to the sliding lock plate. An electromagnet is provided at the other end of the base.

2. An adjustable slow speed centrifuge according to claim 1, wherein, The spring locking mechanism includes a movable component, a locking block, a second compression spring, a connecting block, and a baffle. The movable components are symmetrically arranged and movably connected to the housing. The locking block is connected to the movable component. One end of the second compression spring is connected to the movable component, and the other end of the second compression spring is connected to the baffle. Each movable component is provided with the connecting block. The unlocking mechanism includes a conical block, a vertical plate, a first compression spring, and a button. The conical block includes a round rod, and the button is connected to the round rod. The vertical plate is connected to the housing, and the round rod passes through the vertical plate for movable connection. The first compression spring is sleeved on the round rod, and one end of the first compression spring is connected to the vertical plate. The other end of the first compression spring is connected to the button. The conical block pushes into the connecting blocks to separate the locking block. The button passes through the front end of the upper housing.

3. An adjustable slow centrifuge according to claim 2, wherein, The base is provided with a sliding groove, the sliding lock plate is movably connected in the sliding groove, the sliding lock plate is provided with a round hole, the round rod is installed through the round hole, and the base is provided with a limiting block.

4. An adjustable slow centrifuge according to claim 2, wherein, The spring locking mechanism also includes a slide rail and a slider. The slider is connected to the housing, and the slider and the slide rail are connected in a cooperating manner. The movable part is mounted on the slider.

5. An adjustable slow centrifuge according to claim 2, wherein, The locking block has an inclined surface, and the front end of the locking block has an arc groove.

6. An adjustable slow centrifuge according to claim 1, wherein, The housing contains a centrifugal shaft, the centrifugal disc is bolted to the centrifugal shaft, and the housing contains a motor whose output is connected to the centrifugal shaft.

7. An adjustable slow centrifuge according to claim 6, wherein, The motor's output end is connected to a first gear, and the centrifugal shaft is provided with a second gear that meshes with the first gear.

8. An adjustable slow centrifuge according to claim 6, wherein, The bottom of the housing is provided with a counterweight, and the motor is mounted on the counterweight.

9. An adjustable slow centrifuge according to claim 2, wherein, The round rod has an external thread, and the button has an internal thread. The button is connected to the round rod by the thread.

10. The adjustable slow centrifuge of claim 1, wherein, The upper shell is provided with a column, one end of which is connected to the upper shell and the other end is connected to the housing by a thread.

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