Centrifuge locking structure

Abstract

The centrifuge locking structure belongs to the centrifuge field and comprises a main body, a door assembly, a mechanical locking assembly and an electromagnetic locking assembly. The mechanical locking assembly and the electromagnetic locking assembly are fixed to the main body. The door assembly comprises a door body and a locking plate fixed to the door body. The locking plate is provided with a locking piece. The electromagnetic locking assembly comprises an electromagnetic lock. The electromagnetic lock comprises an electromagnet, a second elastic member and a locking rod. The locking rod is connected with the electromagnet. The electromagnet drives the locking rod to extend or retract. The second elastic member abuts against the locking rod and applies an extending force to the locking rod. When the centrifuge is powered on and normally works, the mechanical locking assembly is locked with the locking plate. The elastic force of the electromagnet and the second elastic member drives the locking rod to extend and pass through the locking piece, so that the door assembly is kept in a locked state with the main body. When the centrifuge is powered off, the magnetic force of the electromagnet disappears. The elastic force of the second elastic member keeps the locking rod extended and passing through the locking piece, so that the door assembly is kept in a locked state with the main body, and accidents are avoided.

Description

Technical Field

[0001] This invention relates to the field of centrifuges, and more particularly to centrifuge locking structures. Background Technology

[0002] A centrifuge is a machine that uses centrifugal force to separate the components of a mixture of liquids and solid particles or liquids. Centrifuges are mainly used to separate solid particles from liquids in suspensions, or to separate two immiscible liquids with different densities in emulsions.

[0003] In existing technologies, the door locks in centrifuge compartment mechanisms are mostly locked using electrical control. During normal operation, the door lock can remain locked. However, in the event of an unexpected power outage, the electrical control system immediately loses power and releases the door lock holding mechanism, causing the centrifuge compartment door to open. At this time, the centrifuge mechanism is still rotating at high speed, which may cause great harm to personnel. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, one of the objectives of this invention is to provide a centrifuge locking structure that enables the centrifuge to have multiple locking mechanisms and prevents the centrifuge compartment door from opening in the event of an accidental power outage, thereby avoiding accidents.

[0005] One of the objectives of this invention is achieved through the following technical solution:

[0006] A centrifuge locking structure includes a main body, a door assembly, a mechanical locking assembly, and an electromagnetic locking assembly. The mechanical locking assembly and the electromagnetic locking assembly are respectively fixed to the main body. The door assembly includes a door body and a locking plate installed on the door body. The locking plate has a locking piece. The electromagnetic locking assembly includes an electromagnetic lock, which includes an electromagnet, a second elastic element, and a locking rod. The locking rod is connected to the electromagnet. The electromagnet drives the locking rod to extend or retract. The second elastic element abuts against the locking rod and applies an extension force to it. When the centrifuge is powered on and operating normally, the mechanical locking assembly locks with the locking plate. The elastic force of the electromagnet and the second elastic element drives the locking rod to extend and pass through the locking piece, keeping the door assembly locked to the main body. When the centrifuge is powered off, the electromagnet's magnetic force disappears, and the elastic force of the second elastic element keeps the locking rod extended and passing through the locking piece, keeping the door assembly locked to the main body.

[0007] Furthermore, the mechanical locking assembly includes a snap-fit ​​element or has a snap-fit ​​hole, the mounting block is fixed to the main body, the snap-fit ​​element is fixed to the mounting block, the locking plate has a snap-fit ​​hole or includes a snap-fit ​​element, and the snap-fit ​​element is located in the snap-fit ​​hole to lock the mechanical locking assembly with the locking plate.

[0008] Furthermore, the fastener has a beveled surface.

[0009] Furthermore, the locking plate is rotatably mounted on the door body.

[0010] Furthermore, the door assembly also includes a first elastic element and a pivot. The locking plate is rotatably mounted on the door body via the pivot. One end of the first elastic element is connected to the door body, and the other end is connected to the locking plate.

[0011] Furthermore, the buckle is equipped with a Hall sensor, and a magnetic sheet is provided on the edge of the buckle hole. When the buckle is located in the buckle hole, the Hall sensor senses the magnetic sheet to detect the position of the locking plate.

[0012] Furthermore, the locking piece is provided with a locking hole, and the electromagnetic locking assembly also includes a base, the base including a mounting part and a seat body, a gap being formed between the mounting part and the seat body, the electromagnetic lock being installed on the base, the locking piece being located in the gap, and the locking rod extending into the locking hole.

[0013] Furthermore, the electromagnetic locking assembly also includes a first detection mechanism, which includes a first baffle and a first sensor. The first baffle is fixed to the locking rod, and the first sensor is fixed to the base. The first baffle moves with the locking rod and triggers the first sensor to detect the extension of the locking rod.

[0014] Furthermore, the electromagnetic locking assembly also includes a second detection mechanism, which includes a third elastic element, a top pin, a second baffle, and a second sensor. The top pin is slidably mounted on the base, the third elastic element abuts against the top pin, the second baffle is fixed to the top pin, and the second sensor is fixed to the base. When the locking piece extends into the gap, it abuts against the top pin, the third elastic element is compressed, and the top pin drives the second baffle to move and trigger the second sensor to detect whether the locking piece has fully entered the gap and determine whether the door is fully closed.

[0015] Furthermore, the door body includes an upper door panel and a lower door panel, which are rotatably connected. The door assembly also includes a slider and a linkage mechanism. The upper door panel is rotatably connected to the slider, the slider is slidably connected to the main body, and the lower door panel is connected to the main body through the linkage mechanism.

[0016] Compared with existing technologies, the centrifuge locking structure of the present invention has the following advantages:

[0017] (1) The centrifuge locking structure includes a mechanical locking component and an electromagnetic locking component. When the centrifuge is powered on and working normally, the mechanical locking component and the electromagnetic locking component are locked to the door through the locking plate respectively, providing double locking to ensure safety.

[0018] (2) The electromagnetic lock includes an electromagnet, a second elastic element and a locking rod. The locking rod is connected to the electromagnet. The electromagnet drives the locking rod to extend or retract. The second elastic element abuts against the locking rod and applies an extension force to the locking rod. When the centrifuge is powered off, the magnetic force of the electromagnet disappears. The elastic force of the second elastic element keeps the locking rod extended and passes through the locking plate, so that the door assembly and the main body are locked together, preventing the door from opening due to accidental power failure.

[0019] (3) The upper door panel and the lower door panel are rotatably connected. The upper door panel is rotatably connected to the slider, and the slider is slidably connected to the main body. The lower door panel is connected to the main body through a linkage mechanism. When the door is in the open state, it can be folded to achieve a large opening. When the door is fully open, the door is in a drooping and folded-in state, so it does not take up too much space.

[0020] (4) The Hall sensor sensing magnetic sheet can detect the position status of the locking plate and determine whether the handle is lifted during the operation of the centrifuge; the first baffle moves with the locking rod and triggers the first sensor to detect whether the locking rod is extended; the top pin drives the second baffle to move and triggers the second sensor to detect whether the locking plate is fully inserted into the gap, so as to determine whether the chamber door is fully closed; through the above design, multiple feedback can be provided to facilitate monitoring of the locking status of the centrifuge. Attached Figure Description

[0021] Figure 1 This is a perspective view of the centrifuge locking structure of the present invention in the locked state;

[0022] Figure 2 for Figure 1 A perspective view of the housing of a centrifuge with a locking structure;

[0023] Figure 3 for Figure 1 A three-dimensional view of the internal structure of the centrifuge locking mechanism;

[0024] Figure 4 for Figure 1 A perspective view of the centrifuge door assembly with locking structure;

[0025] Figure 5 for Figure 1 Another perspective view of the centrifuge locking structure's door assembly;

[0026] Figure 6 for Figure 5 A partial three-dimensional view of the structure of the warehouse door assembly;

[0027] Figure 7 for Figure 1 A partial three-dimensional view of the centrifuge locking structure;

[0028] Figure 8 for Figure 7 A three-dimensional view of the electromagnetic locking assembly of the centrifuge locking structure;

[0029] Figure 9 for Figure 8 Another perspective view of the electromagnetic locking assembly;

[0030] Figure 10 for Figure 9 A three-dimensional view of the electromagnetic lock of the electromagnetic locking component;

[0031] Figure 11 for Figure 1 A three-dimensional view of another part of the centrifuge locking structure;

[0032] Figure 12 for Figure 11 A three-dimensional view of a partial structure of the centrifuge locking mechanism from another perspective;

[0033] Figure 13 for Figure 1 A 3D view of the centrifuge door assembly in a partially open state, representing the centrifuge's locking structure.

[0034] Figure 14 for Figure 1 A 3D view of the centrifuge locking structure's door assembly in the fully open state.

[0035] In the diagram: 10. Main body; 11. Chamber body; 110. Opening; 111. Slide groove; 12. Base plate; 13. Bracket; 14. Centrifuge mounting base; 20. Chamber door assembly; 21. Door body; 210. Upper door panel; 2101. Groove; 2102. Arc groove; 211. Lower door panel; 22. Handle; 23. Connecting structure; 231. First rod; 232. Second rod; 24. Linkage mechanism; 241. First connecting rod; 242. Second connecting rod; 243. Third connecting rod; 244. Connecting block; 25. Locking plate; 250. Snap-fit ​​hole; 251. Locking piece; 2510. Locking hole; 252. Sliding end ; 26. Rotating shaft; 27. First elastic element; 28. Slider; 30. Mechanical locking assembly; 31. Mounting block; 32. Buckle; 320. Inclined surface; 321. Buckle groove; 40. Electromagnetic locking assembly; 41. Base; 410. Mounting part; 411. Seat body; 412. Gap; 42. Electromagnetic lock; 420. Electromagnet; 421. Second elastic element; 413. Locking rod; 43. Fixing plate; 44. First detection mechanism; 440. First baffle; 441. First sensor; 45. Second detection mechanism; 450. Third elastic element; 451. Top pin; 452. Second baffle; 453. Second sensor. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0038] 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 invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] like Figures 1 to 14 As shown, the centrifuge locking structure of the present invention includes a main body 10, a door assembly 20, a mechanical locking assembly 30, and an electromagnetic locking assembly 40.

[0040] The main body 10 includes a chamber 11, a base plate 12, a support 13, and a centrifuge mounting base 14. The chamber 11 has a hollow structure and is rectangular in shape. An opening 110 is provided on the chamber 11, extending from the top to a side wall near the bottom. Slide grooves 111 are provided at both edges of the opening 110. The base plate 12 is fixed to the bottom of the chamber 11. The support 13 and the centrifuge mounting base 14 are fixed to the base plate 12; the centrifuge mounting base 14 is used to mount centrifuge equipment.

[0041] The door assembly 20 includes a door body 21, a handle 22, a connecting structure 23, a linkage mechanism 24, a locking plate 25, a rotating shaft 26, a first elastic element 27, and a slider 28.

[0042] The door 21 includes an upper door panel 210 and a lower door panel 211. The upper door panel 210 and the lower door panel 211 are rotatably connected, allowing them to fold when the door 21 is opened. Specifically, the upper door panel 210 has an arc-shaped cross-section, enabling it to cover the top and part of the sides of the compartment 11. The lower door panel 211 has a straight cross-section. The upper door panel 210 has a groove 2101 for mounting a handle 22, ensuring the handle 22 does not protrude from the door 21. The inner side of the upper door panel 210 has an arc-shaped groove 2102 for accommodating a sliding end 252, allowing the sliding end 252 to slide relative to the upper door panel 210.

[0043] The handle 22 is fixed to the upper door panel 210 and located in the groove 2101. The handle 22 is used by the operator to grip and apply force.

[0044] The connecting structure 23 includes a first rod 231 and a second rod 232. The first rod 231 is fixed to the upper door panel 210, and the second rod 232 is fixed to the lower door panel 211. The first rod 231 and the second rod 232 are rotatably connected, so that the upper door panel 210 and the lower door panel 211 are rotatably connected.

[0045] The linkage mechanism 24 includes a first link 241, a second link 242, a third link 243, and a connecting block 244. The connecting block 244 is fixed to the side wall of the compartment 11. One end of the second link 242 and the third link 243 are rotatably mounted on the connecting block 244, and the other end of the second link 242 and the third link 243 are rotatably mounted on the first link 241. The first link 241, the second link 242, the third link 243, and the connecting block 244 form a four-bar linkage structure. The end of the first link 241 is rotatably connected to the lower door panel 211.

[0046] The locking plate 25 is rotatably mounted on the inner side of the upper door panel 210 via a pivot 26. The locking plate 25 has two latching holes 250 located at its ends. Magnetic pieces are provided at the edges of the latching holes 250. The locking plate 25 also includes a locking piece 251 and a sliding end 252. The locking piece 251 and the latching holes 250 are located at the same end. The locking piece 251 has a locking hole 2510 for locking with the electromagnetic locking assembly 40, thereby locking the door 21. The sliding end 252 is installed in an arc-shaped groove 2102. When the door 21 is opened, the sliding end 252 slides within the arc-shaped groove 2102.

[0047] One end of the first elastic element 27 is connected to the upper door panel 210, and the other end is connected to the locking plate 25. The locking plate 25 is floatingly connected to the upper door panel 210 through the first elastic element 27.

[0048] The slider 28 is rotatably connected to the upper door panel 210, and the slider 28 is slidably installed in the slide groove 111 of the compartment body 11.

[0049] The mechanical locking assembly 30 includes a mounting block 31 and a latching member 32. The mounting block 31 is fixed to the bracket 13, and the latching member 32 is fixed to the mounting block 31. The latching member 32 has an inclined surface 320 facing the locking plate 25. A groove is formed between the end of the inclined surface of the latching member 32 and the mounting block 31. A Hall sensor is attached to the latching member 32. When the latching member 32 is located in the latching hole 250, the Hall sensor senses the magnetic sheet to detect the position of the locking plate 25, thereby determining whether the handle 22 has been lifted during the operation of the centrifuge.

[0050] The electromagnetic locking assembly 40 includes a base 41, an electromagnetic lock 42, a fixing plate 43, a first detection mechanism 44, and a second detection mechanism 45.

[0051] The base 41 is fixed to the bracket 13. The base 41 is provided with a mounting part 410 and a seat body 411, and a gap 412 is formed between the mounting part 410 and the seat body 411.

[0052] The electromagnetic lock 42 includes an electromagnet 420, a second elastic element 421, and a locking rod 413. The electromagnetic lock 42 is fixed to the base 41. The electromagnet 420 is connected to the locking rod 413 via a transmission connection. The electromagnet 420 generates magnetic force through current, causing the locking rod 413 to extend or retract. The second elastic element 421 is a spring. When the second elastic element 421 is in a compressed state, it abuts against the locking rod 413, providing a force for the locking rod 413 to extend. When the electromagnet 420 is de-energized, the elastic force of the second elastic element 421 keeps the locking rod 413 in the extended state.

[0053] The fixing plate 43 is fixed to the base 41.

[0054] The first detection mechanism 44 includes a first baffle 440 and a first sensor 441. The first baffle 440 is fixed to the locking rod 413 and moves with the locking rod 413. The first sensor 441 is fixed to the fixing plate 43. When the first baffle 440 moves to the first sensor 441, the first sensor 441 is triggered and generates a signal to provide feedback that the locking rod 413 has moved into place.

[0055] The second detection mechanism 45 includes a third elastic element 450, a top pin 451, a second baffle 452, and a second sensor 453. The top pin 451 is slidably mounted on the fixed plate 43. The third elastic element 450 is a spring, mounted on the fixed plate 43 and abutting against the top pin 451. The second baffle 452 is fixed to the top pin 451 and moves with it. The second sensor 453 is fixed to the fixed plate 43. When the locking piece 251 extends into the gap 412, it abuts against the top pin 451, compressing and deforming the third elastic element 450. The top pin 451 moves, causing the second baffle 452 to move. When the second baffle 452 moves to the second sensor 453, the second sensor 453 is triggered, generating a signal to indicate that the locking piece 251 is fully inserted and the door is completely closed. The Hall sensor cannot detect whether the door is completely closed because the magnetic piece will be detected by the Hall sensor if it is within a certain range of the Hall sensor. In a scenario where the door lock latch is loose, although the locking plate 25 can close completely, the door may not be fully closed. Only when the door is fully closed will the second stop plate 452 be pushed completely into place, allowing the second sensor 453 to detect that the second stop plate 452 is indeed in place.

[0056] When assembling the centrifuge locking structure, the base plate 12 is fixed to the bottom of the chamber 11. The bracket 13 and the centrifuge mounting base 14 are fixed to the base plate 12, and the centrifuge mounting base 14 is used to install the centrifuge equipment. The mechanical locking assembly 30 and the electromagnetic locking assembly 40 are fixed to the bracket 13. The door 21 of the chamber door assembly 20 is movably mounted on the chamber 11.

[0057] When using the centrifuge, after the items to be centrifuged are placed, the operator holds handle 22 and closes the door 21. At this time, the latching hole 250 of the locking plate 25 extends into the latching member 32 and latches with the latching member 32. The Hall sensor senses the magnetic plate and provides feedback to the mechanical locking assembly 30 to lock with the locking plate 25. The locking piece 251 extends into the gap 412. When the locking piece 251 extends into the gap 412, the locking piece 251 abuts against the top pin 451, the third elastic member 450 is compressed and deformed, the top pin 451 moves and drives the second stop plate 452 to move. When the second stop plate 452 moves to the second sensor 453, the second sensor 453 is triggered and generates a signal to provide feedback that the locking piece 251 has extended into place. The electromagnet 420 generates magnetic force through current to extend the locking rod 413. The locking rod 413 extends into the locking hole 2510 of the locking piece 251 and is partially received in the mounting part 410, so that the electromagnetic locking assembly 40 locks with the locking plate 25. When the locking lever 413 moves, it drives the first stop plate 440 to move. When the first stop plate 440 moves to the first sensor 441, the first sensor 441 is triggered and generates a signal to provide feedback that the locking lever 413 has moved into place.

[0058] When the centrifuge suddenly loses power, the magnetic force of the electromagnet 420 disappears, but the elastic force of the second elastic element 421 keeps the locking rod 413 in the extended state, keeping the electromagnetic locking assembly 40 locked to the locking plate 25, preventing the door 21 from being opened due to misoperation after the buckle 32 disengages from the buckle hole 250.

[0059] When the door 21 needs to be opened, the electromagnet 420 generates a reverse force, which is greater than the elastic force of the second elastic element 421. The locking rod 413 retracts, and the electromagnetic locking assembly 40 unlocks from the locking plate 25. The operator holds the handle 22 and applies force to the door 21. Since the locking plate 25 is floatingly connected to the upper door panel 210, the locking plate 25 causes the latch 32 to disengage from the latch hole 250 after being subjected to force, and the mechanical locking assembly 30 unlocks from the locking plate 25. If the handle 22 is pulled further, the slider 28 of the door assembly 20 slides in the slide groove 111, the upper door panel 210 rotates relative to the lower door panel 211, and the lower door panel 211 moves relative to the compartment 11, causing the upper door panel 210 and the lower door panel 211 to fold.

[0060] The centrifuge locking structure of this invention includes a mechanical locking assembly 30 and an electromagnetic lock 42 fixing assembly 40. When the centrifuge is powered on and operating normally, the mechanical locking assembly 30 and the electromagnetic lock 42 fixing assembly 40 are locked to the door 21 by locking plate 25 respectively, providing double locking for safety. The electromagnetic lock 42 includes an electromagnet 420, a second elastic element 421, and a locking rod 413. The locking rod 413 is connected to the electromagnet 420, which drives the locking rod 413 to extend or retract. The second elastic element 421 abuts against the locking rod 413 and applies an extension force to it. When the centrifuge is powered off, the magnetism of the electromagnet 420 disappears, and the elastic force of the second elastic element 421 keeps the locking rod 413 extended and passing through the locking plate 251, keeping the door assembly 20 locked to the main body 10 and preventing the door from opening due to accidental power failure. The upper door panel 210 and the lower door panel 211 are rotatably connected. The door 21 is rotatably connected to the slider 28, and the slider 28 is slidably connected to the main body 10. The lower door panel 211 is connected to the main body 10 through the linkage mechanism 24. When the door 21 is in the open state, it can be folded to achieve a large opening 110. When the door is fully open, the door is drooping and folded inward, so it does not take up too much space. The Hall sensor senses the magnetic sheet and can detect the position of the locking plate 25, thereby determining whether the handle 22 is lifted during the operation of the centrifuge. The first baffle 440 moves with the locking rod 413 and triggers the first sensor 441 to detect whether the locking rod 413 is extended. The top pin 451 drives the second baffle 452 to move and triggers the second sensor 453 to detect whether the locking plate 251 is fully inserted into the gap 412, and to determine whether the centrifuge chamber door is fully closed. Through the above design, multiple feedbacks can be provided to facilitate monitoring of the locking status of the centrifuge.

[0061] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of the present invention, and all of these fall within the protection scope of the present invention.

Claims

1. A centrifuge locking structure, comprising a main body and a door assembly, characterized in that: It also includes a mechanical locking assembly and an electromagnetic locking assembly, which are respectively fixed to the main body. The door assembly includes a door body and a locking plate installed on the door body. The locking plate is provided with a locking piece. The electromagnetic locking assembly includes an electromagnetic lock. The door assembly also includes a first elastic element and a rotating shaft. The locking plate is rotatably installed on the door body via the rotating shaft. One end of the first elastic element is connected to the door body, and the other end is connected to the locking plate. The electromagnetic lock includes an electromagnet, a second elastic element, and a locking rod. The locking rod is connected to the electromagnet... The centrifuge is connected by a magnet. The electromagnet drives the locking rod to extend or retract. The second elastic element abuts against the locking rod and applies an extension force to it. When the centrifuge is powered on and operating normally, the mechanical locking assembly locks with the locking plate. The elastic force of the electromagnet and the second elastic element drives the locking rod to extend and pass through the locking plate, keeping the door assembly locked to the main body. When the centrifuge is powered off, the electromagnet loses its magnetic force, and the elastic force of the second elastic element keeps the locking rod extended and passing through the locking plate, keeping the door assembly locked to the main body.

2. The centrifuge locking structure according to claim 1, characterized in that: The mechanical locking assembly includes a snap fastener and a mounting block. The mounting block is fixed to the main body, and the snap fastener is fixed to the mounting block. The locking plate has a snap fastener hole, and the snap fastener is located in the snap fastener hole to lock the mechanical locking assembly to the locking plate.

3. The centrifuge locking structure according to claim 2, characterized in that: The fastener has a beveled surface.

4. The centrifuge locking structure according to claim 2, characterized in that: The locking plate is rotatably mounted on the door.

5. The centrifuge locking structure according to claim 2, characterized in that: The buckle is equipped with a Hall sensor, and the edge of the buckle hole is provided with a magnetic sheet. When the buckle is located in the buckle hole, the Hall sensor senses the magnetic sheet to detect the position of the locking plate.

6. The centrifuge locking structure according to claim 1, characterized in that: The locking piece is provided with a locking hole, and the electromagnetic locking assembly also includes a base. The base includes a mounting part and a seat body, and a gap is formed between the mounting part and the seat body. The electromagnetic lock is installed on the base, the locking piece is located in the gap, and the locking rod extends into the locking hole.

7. The centrifuge locking structure according to claim 6, characterized in that: The electromagnetic locking assembly further includes a first detection mechanism, which includes a first baffle and a first sensor. The first baffle is fixed to the locking rod, and the first sensor is fixed to the base. The first baffle moves with the locking rod and triggers the first sensor to detect the extension of the locking rod.

8. The centrifuge locking structure according to claim 6, characterized in that: The electromagnetic locking assembly further includes a second detection mechanism, which includes a third elastic element, a top pin, a second baffle, and a second sensor. The top pin is slidably mounted on the base, the third elastic element abuts against the top pin, the second baffle is fixed to the top pin, and the second sensor is fixed to the base. When the locking piece extends into the gap, it abuts against the top pin, the third elastic element is compressed, and the top pin drives the second baffle to move and triggers the second sensor to detect whether the locking piece has fully entered the gap and determine whether the door is fully closed.

9. The centrifuge locking structure according to claim 1, characterized in that: The door body includes an upper door panel and a lower door panel, which are rotatably connected. The door assembly also includes a slider and a linkage mechanism. The upper door panel is rotatably connected to the slider, the slider is slidably connected to the main body, and the lower door panel is connected to the main body through the linkage mechanism.

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