Microbial strain centrifugal screening equipment

Abstract

The utility model discloses a microbial strain centrifugal screening device which comprises a shell, a rotating body is arranged in the shell, a plurality of containing cavities are formed in the upper side of the rotating body, and a sealing mechanism used for sealing the containing cavities is arranged on the upper side of the rotating body. The sealing mechanism comprises a sealing cover, a guide column is fixedly installed on the lower side of the sealing cover, a penetrating hole for the guide column to be inserted is formed in the upper side of the rotating body, a base is arranged on the lower side of the guide column and arranged in the penetrating hole in a sliding mode, and a clamping piece is arranged on the sealing cover and used for sealing the containing cavity through the sealing cover. In the initial state, the sealing cover does not make contact with the rotating body, the reagent bottle can be conveniently plugged into the containing cavity, then the sealing cover and the guide column are inserted along the penetrating hole till the sealing cover seals the containing cavity, then the clamping piece limits the sealing cover and prevents the sealing cover from moving in the vertical direction, and therefore the sealing cover can conveniently and rapidly seal the containing cavity, operation steps are reduced, and operation efficiency is improved. Meanwhile, the clamping piece limits the sealing cover to move in the vertical direction, and therefore the sealing cover is prevented from being disengaged from the rotating body.

Description

Technical Field

[0001] This utility model relates to the field of microbial strain screening technology, specifically to a microbial strain centrifugal screening device. Background Technology

[0002] Centrifuges have long been known for generating powerful centrifugal forces during high-speed operation. If the lid is not completely sealed, the liquid inside the container may be ejected due to centrifugal force, causing severe burns, splashes, and other injuries to operators. Therefore, the sealing performance of the centrifuge lid is crucial.

[0003] Existing centrifuge lids generally use a threaded structure, requiring manual tightening for sealing. This method is cumbersome and prone to uneven tightening and inadequate sealing. Furthermore, during the deceleration process, the lid may detach prematurely due to inertia and mismatch with the rotation speed. Utility Model Content

[0004] In order to solve at least one of the technical problems mentioned in the background art, the purpose of this utility model is to provide a microbial strain centrifugation and sieving device that is easy to seal and prevents the lid from falling off during centrifugation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a microbial strain centrifugation and sieving device, comprising a shell, a rotating body disposed inside the shell, a plurality of placement cavities being opened on the upper side of the rotating body, the placement cavities gradually approaching the rotation axis of the rotating body from bottom to top in the vertical direction, and a sealing mechanism for closing the placement cavities being disposed on the upper side of the rotating body;

[0006] The sealing mechanism includes a cover, a guide post fixedly installed on the lower side of the cover, a through hole for inserting the guide post on the upper side of the rotating body, a base provided on the lower side of the guide post, the base being slidably disposed in the through hole, and a snap-fit ​​component provided on the cover for sealing the housing cavity.

[0007] Furthermore, the perforation includes a first hole and a second hole arranged along the axis of rotation, the first hole being located above the second hole, a horizontal stop being provided at the connection between the first hole and the second hole, and the horizontal cross-sectional area of ​​the first hole being smaller than that of the second hole.

[0008] Furthermore, the latching component includes a latching block for abutting against a horizontal stop surface, and a latching groove for placing the latching block is provided on the peripheral side of the guide post. A driving component is provided on the guide post for driving the latching block to move radially along the guide post. When the cover closes the placement chamber, the latching block contacts the horizontal stop surface.

[0009] Furthermore, the driving component includes a puller for retracting the card block into the card slot and a first spring for pushing the card block out of the card slot, with the two sides of the first spring being fixedly connected to the card block and the inner wall of the card slot, respectively.

[0010] Furthermore, the pull member includes a pressure rod that moves axially along the guide post. A blind hole is provided on the upper side of the cover for the pressure rod to pass through. The blind hole extends into the interior of the guide post. A through hole is provided in the guide post to connect the blind hole and the slot. A pull rope passing through the through hole is fixedly connected between the pressure rod and the locking block. When the pressure rod is pressed down, the pressure rod drives the locking block to move into the slot through the pull rope.

[0011] Furthermore, the guide post is rotatably connected to the base, and when the guide post is outside the perforation, the guide post rotates relative to the base in a vertical plane.

[0012] Furthermore, the second hole is not a circular hole, the horizontal cross-section of the base is the same as the horizontal cross-section of the second hole, and the gap between the base and the inner wall of the second hole is 0.5mm-1mm.

[0013] Furthermore, a second spring is fixedly installed on the perforated bottom wall. When the cover closes the mounting cavity, the base compresses the second spring to contract.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: Microbial strains are centrifuged and sieved by a rotating body within the outer shell, with multiple placement cavities on its upper side. Initially, the cap does not contact the rotating body, facilitating the insertion of reagent bottles into the placement cavities. Then, the cap and guide post are inserted along the perforations until the cap seals the placement cavity. A locking mechanism then restricts the cap's movement vertically, thus facilitating rapid sealing of the placement cavity and reducing operational steps. Simultaneously, the locking mechanism restricts the cap's vertical movement, preventing it from detaching from the rotating body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the first variation of the rotating and closing mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the second variation of the rotating and closing mechanism of this utility model;

[0018] Figure 4 This is a cross-sectional view of the rotating and closing mechanism of this utility model;

[0019] Figure 5 This is a three-dimensional sectional view of the rotating and closing mechanism of this utility model;

[0020] Figure 6For the present utility model in Figure 5 Enlarged schematic diagram of a portion of the structure at point A;

[0021] Figure 7 This is a cross-sectional view of the rotating mechanism of this utility model.

[0022] In the diagram: 1. Outer shell; 2. Rotating body; 3. Housing cavity; 4. Sealing mechanism; 41. Cover; 42. Guide post; 43. Perforation; 431. First hole; 432. Second hole; 433. Horizontal stop; 44. Base; 45. Snap-fit ​​component; 451. Snap-fit ​​block; 452. Snap-fit ​​groove; 453. Driving component; 454. Pull component; 455. First spring; 456. Pressure rod; 457. Blind hole; 458. Through hole; 459. Pull rope; 46. Second spring. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Please see Figure 1 and Figure 2 This embodiment provides a microbial strain centrifugation and sieving device, including a shell 1, a rotating body 2 is provided inside the shell 1, a plurality of placement cavities 3 are opened on the upper side of the rotating body 2, the placement cavities 3 gradually approach the rotation axis of the rotating body 2 from bottom to top in the vertical direction, and a sealing mechanism 4 for sealing the placement cavities 3 is provided on the upper side of the rotating body 2.

[0025] Please see Figure 3 and Figure 4 The sealing mechanism 4 includes a cover 41, a guide post 42 is fixedly installed on the lower side of the cover 41, a through hole 43 for inserting the guide post 42 is opened on the upper side of the rotating body 2, a base 44 is provided on the lower side of the guide post 42, the base 44 is slidably disposed in the through hole 43, and a snap-fit ​​part 45 is provided on the cover 41 for sealing the housing cavity 3.

[0026] The centrifugation and sieving of microbial strains is achieved through a rotating body 2 located inside the outer shell 1, with multiple placement chambers 3 on its upper side. The specific operating steps are as follows: A reagent bottle containing the microbial strains to be centrifuged and sieved is inserted into the placement chamber 3, and the placement chamber 3 is sealed by a sealing mechanism 4. This is because the high-speed rotation of the centrifuge may generate high-frequency vibrations and heat, as well as splashing of tubular samples within the container. Then, an external drive source inside the outer shell 1 drives the rotating body 2 to rotate. Because these placement chambers 3 are arranged vertically from bottom to top, gradually approaching the rotation axis of the rotating body 2, thus exhibiting an inclined arrangement, the microbial strains within the reagent bottle will stratify during the rotation of the rotating body 2, thereby allowing for sieving.

[0027] The specific sealing process of the sealing mechanism 4 is as follows: In the initial state, the cap 41 is not in contact with the rotating body 2, which facilitates the insertion of the reagent bottle into the placement cavity 3. Then, the cap 41 and the guide post 42 are inserted along the perforation 43 until the cap 41 seals the placement cavity 3. Then, the locking member 45 restricts the cap 41, preventing the cap 41 from moving vertically. The cap 41 has a rubber sealing layer on its lower side, which further improves the sealing effect of the cap 41 on the placement cavity 3.

[0028] Please see Figure 3 and Figure 4 The perforation 43 includes a first hole 431 and a second hole 432 arranged along the axial direction of the rotating body 2. The first hole 431 is located above the second hole 432. A horizontal baffle 433 is provided at the connection between the first hole 431 and the second hole 432. The horizontal cross-sectional area of ​​the first hole 431 is smaller than the horizontal cross-sectional area of ​​the second hole 432.

[0029] Please see Figure 5 and Figure 6 The latching member 45 includes a latching block 451 for abutting against the horizontal stop surface 433. The guide post 42 has a latching groove 452 for placing the latching block 451 on its peripheral side. The guide post 42 is provided with a driving member 453 for driving the latching block 451 to move radially along the guide post 42. When the cover 41 closes the placement chamber, the latching block 451 contacts the horizontal stop surface 433.

[0030] By setting two holes of different sizes along the axis of the rotating body 2, with the upper hole being smaller than the lower hole, and a horizontal stop 433 being set at the connection of the two holes, the locking block 451 of the locking member 45 can contact the horizontal stop 433 when the cover 41 closes the placement chamber, making it difficult for the cover 41 to move upward, thus maintaining the sealing behavior of the cover 41 on the placement cavity 3. The driving member 453 drives the locking block 451 to move radially along the guide post 42, which facilitates the unlocking of the cover 41. When the driving member 453 drives the locking block 451 to retract into the slot 452, the cover 41 can move in the vertical direction. When the driving member 453 drives the locking block 451 to extend out of the slot 452 and contact the horizontal stop 433, the movement of the cover 41 in the vertical direction is restricted.

[0031] Please see Figure 5 and Figure 6 The driving component 453 includes a puller 454 for retracting the card block 451 into the card slot 452 and a first spring 455 for pushing the card block 451 out of the card slot 452. The two sides of the first spring 455 are fixedly connected to the card block 451 and the inner wall of the card slot 452, respectively.

[0032] Please see Figure 5 and Figure 6 The first spring 455 is used to push the locking block 451 out of the guide post 42, and the puller 454 is used to drive the locking block 451 to retract into the guide post 42, thereby limiting and unlocking the cover 41.

[0033] The pull member 454 includes a pressure rod 456 that moves axially along the guide post 42. The upper side of the cover 41 is provided with a blind hole 457 for the pressure rod 456 to pass through. The blind hole 457 extends into the interior of the guide post 42. The guide post 42 is provided with a through hole 458 that connects the blind hole 457 and the slot 452. A pull rope 459 that passes through the through hole 458 is fixedly connected between the pressure rod 456 and the slot 451. When the pressure rod 456 is pressed down, the pressure rod 456 drives the slot 451 to move into the slot 452 through the pull rope 459.

[0034] The retraction of the locking block 451 into the guide post 42 is achieved by a pressure rod 456 that moves axially along the guide post 42 and a connecting pull rope 459. A blind hole 457 on the sealing cover 41 provides a through-hole for the pressure rod 456, extending into the guide post 42. The movement of the pressure rod 456 is successfully transmitted to the locking block 451 connected to the other end of the pull rope 459 via a through hole 458 connected to the locking groove 452. When the user presses down on the pressure rod 456, the pull rope 459 moves the locking block 451 into the locking groove 452, thus retracting the locking block 451 into the guide post 42.

[0035] Please see Figure 3 and Figure 5 The guide post 42 is rotatably connected to the base 44. When the guide post 42 is outside the through hole 43, the guide post 42 rotates relative to the base 44 in the vertical plane.

[0036] The cap 41 is located above the placement cavity 3. When the reagent bottle is placed into the placement cavity 3, the cap 41 will obstruct the placement of the reagent bottle. This design rotates the cap 41 around the base 44 in the vertical plane, that is, deflects the cap 41, and moves the cap 41 away from the top of the placement cavity 3, making it easier to insert the reagent bottle.

[0037] Please see Figure 4 and Figure 7 The second hole 432 is not a circular hole. The horizontal cross-section of the base 44 is the same as the horizontal cross-section of the second hole 432. The gap between the base 44 and the inner wall of the second hole 432 is 0.5mm-1mm.

[0038] As a result, the base 44 will not be able to rotate circumferentially relative to the rotating body 2, and consequently, the cover 41 will not be able to rotate relative to the rotating body 2. Thus, during the high-speed rotation of the rotating body 2, the cover 41 will not rotate relative to the rotating body 2, reducing the wear of the cover 41.

[0039] A second spring 46 is fixedly installed on the bottom wall of the perforation 43. When the cover 41 closes the placement cavity 3, the base 44 compresses the second spring 46 to retract. When it contacts the limit position of the cover 41, the cover 41 can pop out, making it easy to pull out the guide post 42.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A microbial strain centrifugal screening apparatus, characterized by, The utility model provides a kind of rotating body (2) is arranged in shell (1), the upper side of rotating body (2) is provided with multiple installation cavities (3), and the installation cavity (3) is gradually close to rotating body (2) rotation axis from below to above along vertical direction, and the upper side of rotating body (2) is provided with the closing mechanism (4) for closing installation cavity (3); The closing mechanism (4) includes a cover (41), a guide post (42) is fixedly installed on the lower side of the cover (41), a through hole (43) is formed on the upper side of the rotating body (2) for the insertion of the guide post (42), a base (44) is arranged on the lower side of the guide post (42), and the base (44) is slidably arranged in the through hole (43). A clamping piece (45) is arranged on the cover (41) to limit the vertical movement of the cover (41).

2. The microbial species centrifugal screening apparatus of claim 1, wherein, The through hole (43) includes a first hole (431) and a second hole (432) arranged axially along the rotating body (2), the first hole (431) is located above the second hole (432), a horizontal stop surface (433) is arranged at the connection between the first hole (431) and the second hole (432), and the horizontal cross-sectional area of the first hole (431) is smaller than that of the second hole (432).

3. The microbial species centrifugal screening apparatus of claim 2, wherein, The clamping piece (45) includes a clamping block (451) for abutting against the horizontal stop surface (433), a clamping groove (452) is formed on the lateral surface of the guide post (42) for placing the clamping block (451), a driving piece (453) is arranged on the guide post (42) for driving the clamping block (451) to move radially along the guide post (42), and the clamping block (451) is in contact with the horizontal stop surface (433) when the cover (41) closes the installation cavity.

4. The microbial species centrifugal screening apparatus of claim 3, wherein, The driving piece (453) includes a pulling piece (454) for retracting the clamping block (451) into the clamping groove (452) and a first spring (455) for pushing the clamping block (451) out of the clamping groove (452), and the first spring (455) is fixedly connected to the inner wall of the clamping block (451) and the clamping groove (452) on both sides.

5. The microbial species centrifugal screening apparatus of claim 4, wherein, The pulling piece (454) includes a pressing rod (456) moving axially along the guide post (42), a blind hole (457) is formed on the upper side of the cover (41) for the pressing rod (456) to pass through, the blind hole (457) extends into the guide post (42), a through hole (458) is formed in the guide post (42) to communicate with the blind hole (457) and the clamping groove (452), a pulling rope (459) is fixedly connected between the pressing rod (456) and the clamping block (451) to pass through the through hole (458), and when the pressing rod (456) is pressed to move downward, the pressing rod (456) drives the clamping block (451) to move into the clamping groove (452) through the pulling rope (459).

6. The microbial species centrifugal screening apparatus of claim 1, wherein, The guide post (42) is rotationally connected with the base (44), and when the guide post (42) is located outside the through hole (43), the guide post (42) rotates relative to the base (44) in the vertical plane.

7. The microbial species centrifugal screening apparatus of claim 2, wherein, The second hole (432) is not a round hole, the base (44) has the same horizontal section as the second hole (432), and the gap between the base (44) and the inner wall of the second hole (432) is 0.5-1 mm.

8. The microbial species centrifugal screening apparatus of claim 1, wherein, The bottom wall of the perforation (43) is fixedly provided with a second spring (46), and when the cover (41) closes the accommodation cavity (3), the base (44) extrudes the second spring (46) to contract.

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