A device for sample pretreatment of macrobrachium rosenbergii

Abstract

The utility model relates to aquatic product breeding technical field discloses a kind of before processing device of macrobrachium rosenbergii sample, including shell, the inside of shell is provided with reciprocating motion component, and the inside bottom surface of shell is fixedly connected with side plate, the outer surface of side plate is installed with frequency conversion motor, the output shaft of frequency conversion motor is fixedly connected with synchronous pulley one, the outer surface transmission of synchronous pulley one is connected with synchronous belt, synchronous belt transmission is connected with synchronous pulley two, the inside of synchronous pulley two is connected with the rotating rod of insertion, the top of shell is connected with cover plate by screw.The utility model can be inserted multiple test tubes containing macrobrachium rosenbergii pancreas sample at one time by setting multiple jacks on placing table, meanwhile, cooperate four reciprocating motion components, under the driving of frequency conversion motor, can make multiple test tubes sample and solvent fully oscillate, compared with single sample processing single sample, greatly improve processing efficiency, also enhanced the uniformity of oscillation, guarantee sample processing effect.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically to a pretreatment device for testing Macrobrachium rosenbergii samples. Background Technology

[0002] As one of the three most farmed shrimp species in the world, the giant freshwater prawn (Macrobrachium rosenbergii) holds an important position in aquaculture and food processing due to its delicious meat and rich nutrition. With consumers increasingly focused on food safety, the detection of drug residues, heavy metal content, and microbial indicators in giant freshwater prawns has become increasingly crucial. Sample pretreatment, as a fundamental step in the testing process, directly affects the accuracy and reliability of the test results.

[0003] Currently, before testing Macrobrachium rosenbergii samples, it is usually necessary to remove the pancreatic tissue of the sample shrimp and place it in a test tube, then grind it, add the reaction solvent, and shake it. However, in the shaking and mixing step, existing manual testing methods typically involve manually shaking the test tube to mix the ground sample tissue with the solvent. This process requires manually shaking the test tube one by one. If a large number of samples are being tested, the workload of the testing personnel is significant, and there is also the problem of insufficient shaking, resulting in incomplete reaction between the sample and the reagent. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a sample pretreatment device for Macrobrachium rosenbergii, which has the advantages of being able to shake multiple test tubes at once, ensuring thorough mixing of the sample and solvent within the test tubes, thus solving the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pretreatment device for testing Macrobrachium rosenbergii samples, comprising a housing, a reciprocating motion assembly disposed inside the housing, a side plate fixedly connected to the bottom surface of the housing, a variable frequency motor mounted on the outer surface of the side plate, a synchronous pulley one fixedly connected to the output shaft of the variable frequency motor, a synchronous belt drivingly connected to the outer surface of the synchronous pulley one, a synchronous pulley two drivingly connected to the synchronous belt, a rotating rod inserted inside the synchronous pulley two, a cover plate connected to the top of the housing by screws, a vertical rod fixedly connected to the top surface of the cover plate, a placement platform disposed on the top of the cover plate, a layer plate sleeved on the outer surface of the vertical rod, a spring sleeved on the outer surface of the layer plate, and a top plate bolted to the top of the layer plate;

[0008] The reciprocating motion assembly includes a sleeve rod, a slider slidably connected to the outer surface of the sleeve rod, a short shaft fixedly connected to the side wall of the slider, a roller rotatably connected to one end of the short shaft, a turntable rolling contacting the outer surface of the roller, a push rod fixedly connected to the top surface of the slider, and a compression spring sleeved on the outer surface of the push rod.

[0009] Preferably, the upper surface of the placement platform has a plurality of equally spaced insertion holes for inserting test tubes, and the lower surface of the shelf is fixedly connected with a plurality of equally spaced sealing plugs for sealing the test tubes.

[0010] Preferably, the housing is provided with four sets of reciprocating motion components. The two ends of the rotating rod are connected to the turntable by screws, and the middle section of the outer circumference of the rotating rod is connected to the second synchronous wheel by screws. The top end of the compression spring abuts against the cover plate, and the bottom end of the compression spring abuts against the slider. The top end of the top rod is connected to the placement platform by screws.

[0011] Preferably, the outer surface of the side plate is rotatably connected to two auxiliary wheels, and the outer peripheral surfaces of the two auxiliary wheels are in rolling contact with the timing belt.

[0012] Preferably, the top end of the spring abuts against the top plate, and the bottom end of the spring abuts against the layer plate.

[0013] Preferably, a side block is fixedly connected to the top surface of the shelf near the two sides, and a locking hook is rotatably connected to the inner side of the side block by a pin. A U-shaped ring is fixedly connected to the two sides of the top plate.

[0014] Compared with the prior art, this utility model provides a sample pretreatment device for Macrobrachium rosenbergii, which has the following beneficial effects:

[0015] 1. This utility model, by setting multiple insertion holes on the placement platform, can insert multiple test tubes containing pancreatic samples of giant freshwater prawns at one time. At the same time, with the help of four sets of reciprocating motion components, driven by a variable frequency motor, the samples and solvents in multiple test tubes can be fully shaken. Compared with processing a single sample at a time, this greatly improves the processing efficiency, enhances the uniformity of shaking, and ensures the sample processing effect.

[0016] 2. This utility model features a sealing plug placed on the lower surface of the shelf corresponding to the insertion hole. A spring keeps the sealing plug in place to prevent sample leakage during vibration. When inserting the test tube, the shelf is manually pushed up to overcome the spring pressure and the shelf is fixed by a locking hook and a U-shaped ring, leaving space for easy insertion. After insertion, the locking hook and U-shaped ring are separated, and the sealing plug automatically seals. The operation is simple and combines practicality and convenience. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 This is a front view of the structure of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the interior of the structural shell of this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the reciprocating motion component in this utility model.

[0021] The components are as follows: 1. Housing; 2. Reciprocating motion assembly; 21. Sleeve rod; 22. Slider; 23. Short shaft; 24. Roller; 25. Turntable; 26. Compression spring; 27. Top rod; 3. Side plate; 4. Variable frequency motor; 5. Synchronous pulley one; 6. Synchronous belt; 7. Synchronous pulley two; 8. Rotating rod; 9. Cover plate; 10. Upright pole; 11. Placement platform; 12. Shelf; 13. Spring; 14. Top plate; 15. Auxiliary wheel; 16. Side block; 17. Locking hook; 18. U-shaped ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 A sample pretreatment device for testing giant freshwater prawns includes a housing 1, a reciprocating motion component 2 inside the housing 1, a side plate 3 fixedly connected to the bottom surface of the housing 1, a variable frequency motor 4 mounted on the outer surface of the side plate 3, a synchronous pulley 5 fixedly connected to the output shaft of the variable frequency motor 4, a synchronous belt 6 drivingly connected to the outer surface of the synchronous pulley 5, a synchronous pulley 7 drivingly connected to the synchronous belt 6, a rotating rod 8 inserted inside the synchronous pulley 7, a cover plate 9 connected to the top of the housing 1 by screws, a vertical rod 10 and a placement platform 11 fixedly connected to the top surface of the cover plate 9, a layer plate 12 sleeved on the outer surface of the vertical rod 10, a spring 13 sleeved on the outer surface of the layer plate 12, and a top plate 14 bolted to the top of the layer plate 12.

[0024] The reciprocating motion assembly 2 includes a sleeve rod 21, a slider 22 slidably connected to the outer surface of the sleeve rod 21, a short shaft 23 fixedly connected to the side wall of the slider 22, a roller 24 rotatably connected to one end of the short shaft 23, a turntable 25 rollingly contacting the outer surface of the roller 24, a push rod 27 fixedly connected to the top surface of the slider 22, and a compression spring 26 sleeved on the outer surface of the push rod 27.

[0025] Specifically, the upper surface of the placement platform 11 has multiple equally spaced insertion holes for inserting test tubes, and the lower surface of the shelf 12 is fixedly connected with multiple equally spaced sealing plugs for sealing the test tubes.

[0026] The advantages are that by providing multiple insertion holes on the upper surface of the placement platform 11, multiple test tubes can be inserted at once. The test tubes contain ground pancreatic samples of giant freshwater prawns to be tested, which facilitates the processing of multiple samples at once and improves efficiency. Furthermore, by providing multiple sealing plugs at equal intervals on the lower surface of the shelf 12, corresponding to the insertion holes on the top surface of each placement platform 11, the sealing plugs on the lower surface of the shelf 12 can seal the ends of the test tubes after they are inserted into the insertion holes of the placement platform 11, preventing sample leakage during subsequent shaking.

[0027] Specifically, the housing 1 is equipped with four sets of reciprocating motion components 2. The two ends of the rotating rod 8 are connected to the turntable 25 by screws, and the middle section of the outer circumference of the rotating rod 8 is connected to the synchronous wheel 7 by screws. The top of the compression spring 26 abuts against the cover plate 9, and the bottom of the compression spring 26 abuts against the slider 22. The top of the top rod 27 is connected to the placement platform 11 by screws.

[0028] The advantage is that after the test tube is inserted into the socket on the top surface of the placement stage 11, an operation panel is provided on the front of the housing 1 to adjust the speed of the variable frequency motor 4 and the duration of the movement. When the variable frequency motor 4 is started, it can drive the synchronous pulley 5 to rotate, the synchronous pulley 5 drives the synchronous belt 6 to rotate, the synchronous belt 6 drives the two synchronous pulleys 7 to rotate, the two synchronous pulleys 7 drive the rotating rod 8 connected to them to rotate, and the rotating rod 8 drives the turntables 25 at both ends to rotate. Since the turntables 25 and the rotating rod 8 are eccentrically connected, and since the compression spring 26 always maintains a resisting force on the slider 22, the rotating disc 25 can drive the roller 24 to move up and down during rotation. The roller 24 drives the slider 22 to move up and down, the slider 22 drives the top rod 27 to move up and down, and the top rod 27 drives the placement stage 11 to move up and down. This allows the sample and solvent in the test tube to be fully shaken, and multiple samples can be operated at one time, which can improve the uniformity and efficiency of the shaking.

[0029] Specifically, two auxiliary wheels 15 are rotatably connected to the outer surface of the side plate 3, and the outer circumferential surfaces of the two auxiliary wheels 15 are in rolling contact with the timing belt 6.

[0030] The advantage is that by setting two auxiliary wheels 15 to roll and contact the outer surface of the timing belt 6, the timing belt 6 and the timing wheel 5 are fully engaged, preventing slippage during rotation.

[0031] Specifically, the top end of the spring 13 abuts against the top plate 14, and the bottom end of the spring 13 abuts against the layer plate 12.

[0032] Specifically, side blocks 16 are fixedly connected to the top surface of the shelf 12 near the two sides, and locking hooks 17 are rotatably connected to the inner side of the side blocks 16 by pins. U-shaped rings 18 are fixedly connected to the two sides of the top plate 14.

[0033] The advantage is that by setting the spring 13 to abut against the top plate 14 and the shelf 12, the shelf 12 slides down the outer surface of the upright 10 during the up-and-down movement of the test tube, while the spring 13 always maintains the abutting force against the shelf 12, so that the sealing plug on the lower surface of the shelf 12 can always seal the test tube. When the test tube is inserted into the insertion hole of the placement platform 11, the shelf 12 is manually pushed up to overcome the pressure of the spring 13 and rise. Then the locking hook 17 is hooked onto the U-shaped ring 18, which can temporarily keep the position of the shelf 12 unchanged. This makes it easy to leave enough gap to insert the test tube into the insertion hole of the placement platform 11. After the test tube is inserted, the locking hook 17 is separated from the U-shaped ring 18, so that the sealing plug on the lower surface of the shelf 12 can seal the port of the test tube under the action of the spring 13.

[0034] In use, firstly, manually push the shelf 12 upward against the pressure of the spring 13 to hook the locking hook 17 onto the U-shaped ring 18, thus fixing the position of the shelf 12. Next, insert a test tube containing a ground sample of the pancreas of the giant freshwater prawn into the multiple holes on the upper surface of the placement stage 11. Then, separate the locking hook 17 from the U-shaped ring 18, and under the action of the spring 13, the sealing plug on the lower surface of the shelf 12 seals the test tube port. After that, adjust the speed and duration of the variable frequency motor 4 through the operation panel on the front of the housing 1. Then start the variable frequency motor 4, which drives the synchronous pulley 5 to rotate, which in turn drives the synchronous pulley 7, the rotating rod 8, and the turntable 25 to rotate via the synchronous belt 6. The turntable 25 drives the roller 24, the slider 22, the push rod 27, and the placement stage 11 to move up and down, so that the sample and solvent in the test tube are fully agitated to complete the pretreatment.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sample pretreatment device for Macrobrachium rosenbergii, comprising a shell (1), characterized in that: The housing (1) is provided with a reciprocating motion assembly (2) inside, and a side plate (3) is fixedly connected to the bottom surface of the housing (1). A variable frequency motor (4) is installed on the outer surface of the side plate (3). The output shaft of the variable frequency motor (4) is fixedly connected to a synchronous pulley (5). A synchronous belt (6) is connected to the outer surface of the synchronous pulley (5). A synchronous pulley (7) is connected to the synchronous belt (6). A rotating rod (8) is inserted inside the synchronous pulley (7). A cover plate (9) is connected to the top of the housing (1) by screws. A vertical rod (10) is fixedly connected to the top surface of the cover plate (9). A placement platform (11) is provided on the top of the cover plate (9). A shelf (12) is sleeved on the outer surface of the vertical rod (10). A spring (13) is sleeved on the outer surface of the shelf (12). A top plate (14) is bolted to the top of the shelf (12). The reciprocating motion assembly (2) includes a sleeve rod (21), a slider (22) is slidably connected to the outer surface of the sleeve rod (21), a short shaft (23) is fixedly connected to the side wall of the slider (22), a roller (24) is rotatably connected to one end of the short shaft (23), a turntable (25) is rollingly contacted to the outer surface of the roller (24), a top rod (27) is fixedly connected to the top surface of the slider (22), and a compression spring (26) is sleeved on the outer surface of the top rod (27).

2. The sample pretreatment device for Macrobrachium rosenbergii according to claim 1, characterized in that: The upper surface of the placement platform (11) is provided with a plurality of equally spaced insertion holes for inserting test tubes. The lower surface of the shelf (12) is fixedly connected with a plurality of equally spaced sealing plugs for sealing test tubes.

3. The pretreatment device for detecting Macrobrachium rosenbergii samples according to claim 1, characterized in that: The housing (1) is equipped with four sets of reciprocating motion components (2). The two ends of the rotating rod (8) are connected to the turntable (25) by screws, and the middle section of the outer circumference of the rotating rod (8) is connected to the synchronous wheel (7) by screws. The top of the compression spring (26) abuts against the cover plate (9), and the bottom of the compression spring (26) abuts against the slider (22). The top of the top rod (27) is connected to the placement platform (11) by screws.

4. The pretreatment device for detecting Macrobrachium rosenbergii samples according to claim 1, characterized in that: Two auxiliary wheels (15) are rotatably connected to the outer surface of the side plate (3), and the outer peripheral surfaces of the two auxiliary wheels (15) are in rolling contact with the synchronous belt (6).

5. The pretreatment device for detecting Macrobrachium rosenbergii samples according to claim 1, characterized in that: The top end of the spring (13) abuts against the top plate (14), and the bottom end of the spring (13) abuts against the layer plate (12).

6. The sample pretreatment device for Macrobrachium rosenbergii according to claim 1, characterized in that: The top surface of the shelf (12) is fixedly connected to two side blocks (16) near the two sides. The inner side of the side block (16) is rotatably connected to a locking hook (17) by a pin. The two sides of the top plate (14) are fixedly connected to a U-shaped ring (18).

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