Liquid sample processing device

Abstract

The utility model relates to the technical field of test tube liquid sample treatment, in particular to a liquid sample treatment device. Comprising a case and a plurality of test tube fixing frames, a turntable is mounted at the upper end of the case, and a motor for driving the turntable to rotate is mounted on the inner side of the case; supporting rods are connected to four corners of the bottom end of the test tube fixing frame; positioning grooves matched with the supporting rods are formed in four corners of the upper ends of the test tube fixing frame and the turntable; a plurality of test tube placing holes are formed in the test tube fixing frame, and clamping plates a and clamping plates b are arranged on the inner sides of the test tube placing holes. According to the test tube clamping device, a synchronous clamping function on a plurality of test tubes can be realized, the test tubes with different sizes can be fixed, and the applicability is high; and by arranging the multiple test tube fixing frames, the multiple test tubes can be placed and fixed in advance in the centrifuging process, the multiple test tube fixing frames can be vertically stacked, the number of the test tubes capable of being centrifuged at a time is increased, and then the working efficiency of the equipment is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test tube liquid sample processing, in particular to a liquid sample processing device. Background Art

[0002] In biological experiments, it is often necessary to observe the morphology and other characteristics of tissues under an electron microscope. However, before observation under an electron microscope, the samples need to be processed, such as correcting animal tissues into small blocks of about 1 mm square, and then processing the small blocks of tissues, such as immersing the tissues in buffer, fixing the tissues with osmium acid, immersing the tissues in double distilled water, dehydrating the tissues with acetone gradients, infiltrating the tissues with Epon812 resin, embedding and polymerizing, preparing slices, staining, etc. Only after being processed according to similar conventional methods can the samples be observed under an electron microscope.

[0003] A Chinese patent with announcement number CN205719693U discloses a test tube liquid sample processing device, which relates to the field of sample processing technology; a box door is installed at the front end of a box body, a mounting plate is installed at the lower end of the box body, a rotating motor is installed on the mounting plate, a mounting block is installed on the rotating shaft of the rotating motor, stabilizing blocks are installed at both ends of the mounting block, balls are installed at the upper and lower ends and the front end of the stabilizing block, a test tube placement rack is installed at the upper end of the mounting block, a plurality of test tube placement holes are arranged inside the test tube placement rack, a refrigerator and a lighting lamp are installed at the upper end of the box body, and a circulating fan is installed on the inner wall of the box body.

[0004] The above-mentioned disclosed patent still has the following technical defects: 1. The test tube placement holes on the test tube placement rack are of fixed size and can only hold test tubes of a specific size, and there is no fixed structure, so the test tubes are prone to collide with the inner wall of the test tube placement holes; 2. When there are many samples to be centrifuged, it is necessary to wait for the centrifugation of the previous batch of test tubes to be completed and the test tubes to be removed one by one before the next batch of test tubes can be placed, which affects the working efficiency of the equipment. Utility Model Content

[0005] The utility model aims to provide a liquid sample processing device in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is a liquid sample processing device, comprising:

[0007] A chassis, a turntable is installed on the upper end of the chassis, and a motor for driving the turntable to rotate is installed on the inner side of the chassis;

[0008] A plurality of test tube fixing racks are provided, and the four corners of the bottom end of the test tube fixing racks are connected with support rods, and the four corners of the upper ends of the test tube fixing racks and the turntable are provided with positioning grooves that fit with the support rods; a plurality of test tube placing holes are provided on the test tube fixing racks, and a clamping plate a and a clamping plate b are provided on the inner sides of the test tube placing holes; a plurality of moving rods a are arranged side by side at the bottom end of the test tube fixing racks, and the moving rods a are fixedly connected to the corresponding rows of multiple clamping plates a; a plurality of moving rods b are also arranged side by side at the bottom end of the test tube fixing racks, and the moving rods b are fixedly connected to the corresponding rows of multiple clamping plates b; connecting rods a and connecting rods b are respectively installed on both sides of the bottom end of the test tube fixing racks, and the connecting rod a is connected to the plurality of moving rods a, and the connecting rod b is connected to the plurality of moving rods b; a driving component for driving the connecting rods a and the connecting rods b to move in opposite directions is installed on the test tube fixing racks.

[0009] Preferably, the driving assembly includes a threaded rod, a knob, a sliding rod, a gear, two racks and two mounting plates, the two mounting plates are respectively arranged on both sides of the bottom end of the test tube fixing frame, the sliding rod is connected between the two mounting plates, multiple moving rods a and multiple moving rods b are all slidably mounted on the sliding rod, the threaded rod is rotatably mounted on the mounting plate, the knob is mounted on the end of the threaded rod, the threaded rod is threadedly connected to the moving rod b, the two racks are respectively connected to the moving rod a and the moving rod b, the gear is rotatably mounted on the test tube fixing frame, and the two racks are both meshed with the gear.

[0010] Preferably, a controller is installed on the chassis, and the controller is electrically connected to the motor.

[0011] Preferably, a metal sheet is vertically connected to the bottom end of the test tube holder, a wedge-shaped block is provided at the bottom end of the metal sheet, and limit blocks are provided at the upper ends of the turntable and the test tube holder.

[0012] Preferably, the limiting block is an "L"-shaped structure.

[0013] Preferably, both the splint a and the splint b are cambered structures, and the concave surface on the splint a is arranged opposite to the concave surface on the splint b.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] 1. This technical solution can realize the synchronous clamping function of multiple test tubes and can fix test tubes of different sizes, and has strong applicability.

[0016] 2. By setting up multiple test tube fixing racks, multiple test tubes can be placed and fixed in advance during the centrifugation process, and multiple test tube fixing racks can be stacked vertically, which increases the number of test tubes that can be centrifuged at a single time, thereby greatly improving the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the bottom end of the test tube fixing frame in the utility model.

[0019] Figure 3 It is a cross-sectional structural diagram of the chassis in the utility model.

[0020] Figure numerals: 1, chassis; 2, turntable; 3, controller; 4, motor; 5, test tube fixing rack; 501, test tube placement hole; 6, support rod; 7, metal sheet; 71, wedge block; 81, splint a; 82, splint b; 91, moving rod a; 92, moving rod b; 10, mounting plate; 111, connecting rod a; 112, connecting rod b; 12, threaded rod; 13, knob; 14, gear; 15, rack; 16, positioning groove; 17, limit block; 18, slide rod. DETAILED DESCRIPTION

[0021] Embodiment 1

[0022] like Figure 1-Figure 3 As shown, a liquid sample processing device proposed in this embodiment includes a chassis 1 and a plurality of test tube fixing racks 5 .

[0023] A turntable 2 is installed at the upper end of the chassis 1 , a motor 4 for driving the turntable 2 to rotate is installed on the inner side of the chassis 1 , and a controller 3 is installed on the chassis 1 , and the controller 3 is electrically connected to the motor 4 .

[0024] The four corners of the bottom end of the test tube fixing frame 5 are connected with support rods 6, and the four corners of the upper ends of the test tube fixing frame 5 and the turntable 2 are provided with positioning grooves 16 that fit with the support rods 6; a plurality of test tube placement holes 501 are provided on the test tube fixing frame 5, and a splint a81 and a splint b82 are provided on the inner side of the test tube placement hole 501, and the splint a81 and the splint b82 are both cambered structures, and the concave surface on the splint a81 is arranged opposite to the concave surface on the splint b82, and a plurality of moving rods a91 are arranged side by side at the bottom end of the test tube fixing frame 5, and the moving rod a91 is fixedly connected to the corresponding row of multiple splints a81, and a plurality of moving rods b92 are also arranged side by side at the bottom end of the test tube fixing frame 5, and the moving rod b92 is fixedly connected to the corresponding row of multiple splints b82, and connecting rods a111 and connecting rods b112 are respectively installed on both sides of the bottom end of the test tube fixing frame 5, and the connecting rod a111 and the plurality of moving rods a9 1 is connected, the connecting rod b112 is connected to the multiple moving rods b92, and a driving assembly for driving the connecting rod a111 and the connecting rod b112 to move oppositely to each other is installed on the test tube fixing frame 5. The driving assembly includes a threaded rod 12, a knob 13, a slide bar 18, a gear 14, two racks 15 and two mounting plates 10. The two mounting plates 10 are respectively arranged on both sides of the bottom end of the test tube fixing frame 5. The slide bar 18 is connected between the two mounting plates 10. The multiple moving rods a91 and the multiple moving rods b92 are all slidably mounted on the slide bar 18. The threaded rod 12 is rotatably mounted on the mounting plate 10. The knob 13 is mounted on the end of the threaded rod 12. The threaded rod 12 is threadedly connected to the moving rod b92. The two racks 15 are respectively connected to the moving rod a91 and the moving rod b92. The gear 14 is rotatably mounted on the test tube fixing frame 5, and the two racks 15 are meshed with the gear 14.

[0025] In this embodiment, multiple test tubes of cosmetic liquid samples are placed on the inner sides of multiple test tube placement holes 501 respectively, and then the threaded rod 12 is driven to rotate by the knob 13, thereby driving the moving rod b92 to move. Under the cooperative transmission of the gear 14 and the two racks 15, the moving rod b92 can drive the moving rod a91 to move when moving, so that the clamping plate a81 and the clamping plate b82 are close to each other, thereby realizing the synchronous fixing of multiple test tubes. When the liquid samples in the test tubes are centrifuged, the bottom ends of the four support rods 6 on the test tube fixing frame 5 are respectively inserted into the four positioning grooves 16 on the turntable 2, and the motor 4 is controlled by the controller 3. The motor 4 drives the turntable 2 to rotate, and the rotation of the turntable 2 drives the test tube fixing frame 5 to rotate. By setting multiple test tube fixing frames 5, multiple test tubes can be placed and fixed in advance during the centrifugation process, and the multiple test tube fixing frames 5 can be vertically stacked, which increases the number of test tubes that can be centrifuged at a single time, thereby greatly improving the working efficiency of the equipment.

[0026] Embodiment 2

[0027] like Figure 1 and Figure 2 As shown, a liquid sample processing device proposed in this embodiment, compared with the first embodiment, in this embodiment, the bottom end of the test tube fixing rack 5 is vertically connected with a metal sheet 7, the bottom end of the metal sheet 7 is provided with a wedge block 71, the upper end of the turntable 2 and the test tube fixing rack 5 are provided with a limit block 17, the limit block 17 is an "L"-shaped structure, and the metal sheet 7 is driven to move in the process of moving the test tube fixing rack 5 downward, so that the wedge block 71 is clamped on the limit block 17, thereby improving the stability of the connection between the test tube fixing rack 5 and the turntable 2 and another adjacent test tube fixing rack 5. When disassembling, the limit block 17 is pushed inward. Since the limit block 17 has a certain toughness, the wedge block 71 is separated from the limit block 17, thereby releasing the limit.

[0028] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A liquid sample processing device, characterized in that: include: A chassis (1), a turntable (2) is mounted on the upper end of the chassis (1), and a motor (4) for driving the turntable (2) to rotate is mounted on the inner side of the chassis (1); A plurality of test tube fixing racks (5), the four corners of the bottom end of the test tube fixing rack (5) are connected to support rods (6), and the four corners of the upper ends of the test tube fixing rack (5) and the turntable (2) are provided with positioning grooves (16) that fit with the support rods (6); a plurality of test tube placement holes (501) are opened on the test tube fixing rack (5), and a clamping plate a (81) and a clamping plate b (82) are arranged on the inner side of the test tube placement hole (501); a plurality of moving rods a (91) are arranged side by side at the bottom end of the test tube fixing rack (5), and the moving rods a (91) and the corresponding rows of clamping plates a (81) are fixed to each other. The bottom end of the test tube fixing frame (5) is also provided with a plurality of movable rods b (92) arranged side by side, and the movable rods b (92) are fixedly connected to the corresponding rows of the plurality of clamping plates b (82). The bottom ends of the test tube fixing frame (5) are respectively provided with connecting rods a (111) and connecting rods b (112). The connecting rods a (111) are connected to the plurality of movable rods a (91), and the connecting rods b (112) are connected to the plurality of movable rods b (92). A driving assembly for driving the connecting rods a (111) and the connecting rods b (112) to move in opposite directions is installed on the test tube fixing frame (5).

2. A liquid sample processing device according to claim 1, characterized in that: The driving assembly comprises a threaded rod (12), a knob (13), a slide bar (18), a gear (14), two racks (15) and two mounting plates (10). The two mounting plates (10) are respectively arranged on both sides of the bottom end of the test tube fixing frame (5). The slide bar (18) is connected between the two mounting plates (10). A plurality of moving rods a (91) and a plurality of moving rods b (92) are all slidably mounted on the slide bar (18). The threaded rod (12) is rotatably mounted on the mounting plate (10). The knob (13) is mounted on the end of the threaded rod (12). The threaded rod (12) is threadedly connected to the moving rod b (92). The two racks (15) are respectively connected to the moving rod a (91) and the moving rod b (92). The gear (14) is rotatably mounted on the test tube fixing frame (5). The two racks (15) are both meshedly connected to the gear (14).

3. A liquid sample processing device according to claim 1, characterized in that: A controller (3) is installed on the chassis (1), and the controller (3) is electrically connected to the motor (4).

4. A liquid sample processing device according to claim 1, characterized in that: The bottom end of the test tube fixing frame (5) is vertically connected to a metal sheet (7), the bottom end of the metal sheet (7) is provided with a wedge block (71), and the upper ends of the turntable (2) and the test tube fixing frame (5) are both provided with a limit block (17).

5. A liquid sample processing device according to claim 4, characterized in that: The limit block (17) is an "L" shaped structure.

6. The liquid sample processing device according to claim 1, characterized in that: Both the clamping plate a (81) and the clamping plate b (82) are arc-surface structures, and the concave surface on the clamping plate a (81) is arranged opposite to the concave surface on the clamping plate b (82).

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