Sample preparation device

Abstract

The utility model provides a sample preparation device, which relates to the technical field of food detection, and comprises a box body, the inner wall of the box body is fixedly connected with a fixing frame, the inner wall of the fixing frame is rotatably connected with two crushing rollers, the inner wall of the box body is fixedly connected with a sample preparation barrel, the box body is internally provided with a stirring and cleaning mechanism, and the stirring and cleaning mechanism is arranged on the inner wall of the box body. And the stirring and cleaning mechanism comprises a rotating shaft. According to the food detection device, the purpose of crushing food can be achieved through mutual cooperation of the box body, the fixing frame and the crushing roller, the food can reach the size required by detection, the purpose of stirring the food can be achieved through the sample preparation barrel and the stirring and cleaning mechanism, the food can meet the detection requirement, and the detection efficiency is improved. Meanwhile, the purpose of cleaning the sample preparation barrel can be achieved through the stirring and cleaning mechanism, a worker can clean the device more conveniently, and the practicability of the device can be effectively improved.

Description

Technical Field

[0001] The utility model relates to a sample preparation device, which belongs to the field of food detection. Background Technique

[0002] At present, food refers to various finished products and raw materials for human consumption or drinking, as well as items that are both food and traditional Chinese medicine according to tradition. When selling and packaging food, it is necessary to detect the food to avoid damage to the human body caused by unqualified food. When detecting food, a sample preparation device is needed to process the food.

[0003] According to a sample preparation device disclosed in the patent with the patent number CN217561075U, the device fixes a sample preparation barrel and a slidably connected moving plate through a support frame, so as to drive the sample preparation barrel to move by pulling the moving plate, and then pull the sample preparation barrel out of the inside of the shell, which is convenient for cleaning the inside of the sample preparation barrel. However, in actual application, when cleaning the sample preparation barrel, it generally requires manual cleaning by staff, which is rather troublesome during the cleaning process, time-consuming and laborious, resulting in a waste of labor and reducing the practicability of the device. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a sample preparation device to solve the problems put forward in the above background technique. The utility model can automatically clean the sample preparation barrel, which is more convenient during cleaning and can effectively increase the practicability of the device.

[0005] To achieve the above purpose, the utility model is realized through the following technical scheme: A sample preparation device includes a box body, the inner wall of the box body is fixedly connected with a fixed frame, two crushing rollers are rotatably connected to the inner wall of the fixed frame, a sample preparation barrel is fixedly connected to the inner wall of the box body, a stirring and cleaning mechanism is arranged inside the box body, the stirring and cleaning mechanism includes a rotating shaft, the bottom end of the rotating shaft sequentially penetrates through the sample preparation barrel and the box body and extends to the outside of the box body, the outer surface of the rotating shaft is fixedly connected with a first belt pulley, the bottom surface of the box body is fixedly connected with a first rotating motor, the output end of the first rotating motor is fixedly connected with a second belt pulley, the first rotating motor and the second belt pulley are connected by a belt drive, the outer surface of the rotating shaft is fixedly connected with equally spaced fixed rings, three stirring rods are fixedly connected to the outer surface of each fixed ring, an external connecting sleeve is rotatably connected to the outer surface of the rotating shaft, three groups of pressurized spray heads arranged in a circumferential array are communicated with the outer surface of the rotating shaft, and three scraping plates are rotatably connected to the inner wall of the sample preparation barrel, and the outer surfaces of the three scraping plates are respectively fixedly connected to one end of the three groups of stirring rods away from the fixed rings.

[0006] Further, an external pipe is provided outside the box body. The external pipe is inserted into an external sleeve. Through the external pipe, the cleaning liquid can be transported into the sample preparation bucket, which makes it more convenient for the staff to add the cleaning liquid and can effectively reduce the operation difficulty of the device.

[0007] Further, two second rotary motors are fixedly connected to the front surface of the crushing roller. The output ends of the two second rotary motors penetrate through the fixing frame and extend into the fixing frame. The output ends of the two second rotary motors are respectively fixedly connected to the front surfaces of the two crushing rollers. Through the second rotary motors, the crushing rollers can be driven to rotate, which can provide power for the movement of the crushing rollers. The rotation directions of the two second rotary motors are opposite, so that the rotation directions of the two crushing rollers can be opposite, which can ensure the normal operation of the device.

[0008] Further, a bottom plate is provided below the box body. Four corner edges of the upper surface of the bottom plate are fixedly connected with support rods. The top ends of the four support rods are fixedly connected to the bottom surface of the box body. Through the bottom plate and the support rods, the device can be supported, which can effectively increase the stability of the device and avoid the device from shaking during use. The support rods are made of a material with higher hardness, which can bear a large gravity without breaking and can effectively increase the safety of the device.

[0009] Further, four mounting holes are formed in the upper surface of the bottom plate. The inner walls of each mounting hole are threadedly connected with mounting bolts. Through the mounting holes and the mounting bolts, the device can be installed at the required position, which makes it more convenient for the staff to install the device and can effectively increase the practicability of the device.

[0010] Further, a nut is fixedly connected to the top end of each mounting bolt, and a washer is sleeved on the outer surface of each mounting bolt. Through the nut, it is more convenient for the staff to rotate the mounting bolt. Through the washer, the bottom plate can be protected, which can reduce the wear caused by the nut to the bottom plate and can effectively increase the service life of the device.

[0011] Further, a sealing door is hinged to the front surface of the box body through a pin shaft. A handle is fixedly connected to the front surface of the sealing door. Through the sealing door, it is more convenient for the staff to take out the sample. At the same time, it is more convenient for the staff to repair the internal parts of the box body. Through the handle, it is more convenient for the staff to open the sealing door.

[0012] Further, a sealing cover is hinged to the upper surface of the box body through a pin shaft. A grip is fixedly connected to the upper surface of the sealing cover. Through the sealing cover and the grip, it is more convenient for the staff to add food. At the same time, impurities can be prevented from falling into the inside of the box body, which can effectively increase the safety of the device.

[0013] Advantages of the present utility model:

[0014] 1. Through the mutual cooperation among the box body, the fixing frame and the crushing roller, the present utility model can achieve the purpose of crushing food, enabling the food to reach the required size for detection. Through the sample preparation barrel and the stirring and cleaning mechanism, the purpose of stirring the food can be achieved, enabling the food to meet the detection requirements, and further achieving the purpose of sample preparation. At the same time, through the stirring and cleaning mechanism, the purpose of cleaning the sample preparation barrel can be achieved, making it more convenient for the staff to clean the device, and effectively increasing the practicability of the device.

[0015] 2. The present utility model can transport the cleaning liquid to the inside of the sample preparation barrel through the external connecting pipe, drive the crushing roller to rotate through the second rotating motor, support the device through the bottom plate and the support rod, install the device at the required position through the installation holes, installation bolts, nuts and washers, make it more convenient for the staff to take out the sample through the sealing door and the handle, and make it more convenient for the staff to add food through the sealing cover and the handle. Description of the Drawings

[0016] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0017] Figure 1 Schematic diagram of the front view structure of a sample preparation device of the present utility model;

[0018] Figure 2 Schematic diagram of the internal structure of the box body of a sample preparation device of the present utility model;

[0019] Figure 3 Schematic diagram of the structure of the fixing frame of a sample preparation device of the present utility model;

[0020] Figure 4 Schematic diagram of the structure of the stirring and cleaning mechanism of a sample preparation device of the present utility model.

[0021] In the figure: 1 - box body, 2 - fixing frame, 3 - crushing roller, 4 - sample preparation barrel, 5 - stirring and cleaning mechanism, 501 - rotating shaft, 502 - first belt pulley, 503 - first rotating motor, 504 - second belt pulley, 505 - fixing ring, 506 - stirring rod, 507 - external connecting sleeve, 508 - pressure - increasing spray head, 509 - scraper, 5010 - external connecting pipe, 6 - second rotating motor, 7 - bottom plate, 8 - support rod, 9 - installation hole, 10 - installation bolt, 11 - nut, 12 - washer, 13 - sealing door, 14 - handle, 15 - sealing cover, 16 - handle. Detailed Embodiments

[0022] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] See Figures 1 - 4 , this embodiment proposes a sample preparation device, including a box body 1. A fixing frame 2 is fixedly connected to the inner wall of the box body 1. Two crushing rollers 3 are rotatably connected to the inner wall of the fixing frame 2. A sample preparation barrel 4 is fixedly connected to the inner wall of the box body 1.

[0024] See Figures 1 to 3 , the box body 1 can protect the device, avoid damage to the parts inside the device, and effectively increase the safety of the device. Through the fixing frame 2 and the crushing rollers 3, the purpose of crushing food can be achieved, and the size of the food can meet the detection requirements. Through the fixing frame 2, the falling of food can be blocked to ensure that the food enters the sample preparation barrel 4. Through the sample preparation barrel 4, the food can be stored and collected.

[0025] Two second rotating motors 6 are fixedly connected to the front surface of the crushing roller 3. The output ends of the two second rotating motors 6 penetrate the fixing frame 2 and extend into the fixing frame 2. The output ends of the two second rotating motors 6 are respectively fixedly connected to the front surface of the two crushing rollers 3. The second rotating motors 6 can drive the crushing rollers 3 to rotate, providing power for the movement of the crushing rollers 3. The rotating directions of the two second rotating motors 6 are opposite, so that the rotating directions of the two crushing rollers 3 are opposite, ensuring the normal operation of the device.

[0026] A sealing door 13 is hinged to the front surface of the box body 1 through a pin shaft. A handle 14 is fixedly connected to the front surface of the sealing door 13. The sealing door 13 makes it more convenient for the staff to take out the sample, and at the same time makes it more convenient for the staff to repair the parts inside the box body 1. The handle 14 makes it more convenient for the staff to open the sealing door 13.

[0027] A sealing cover 15 is hinged to the upper surface of the box body 1 through a pin shaft. A grip 16 is fixedly connected to the upper surface of the sealing cover 15. The sealing cover 15 and the grip 16 make it more convenient for the staff to add food, and at the same time can prevent impurities from falling into the box body 1, effectively increasing the safety of the device.

[0028] Inside the box body 1, a stirring and cleaning mechanism 5 is arranged. The stirring and cleaning mechanism 5 includes a rotating shaft 501. The bottom end of the rotating shaft 501 sequentially penetrates through the sample preparation barrel 4 and the box body 1 and extends to the outside of the box body 1. A first belt pulley 502 is fixedly connected to the outer surface of the rotating shaft 501. The bottom surface of the box body 1 is fixedly connected with a first rotating motor 503. The output end of the first rotating motor 503 is fixedly connected with a second belt pulley 504. The first rotating motor 503 and the second belt pulley 504 are connected by a belt for transmission.

[0029] See Figure 4 , the first rotating motor 503 can drive the second belt pulley 504 to rotate, and then can drive the first belt pulley 502 to rotate through the belt. The rotation of the first belt pulley 502 can drive the rotating shaft 501 to rotate. The rotating shaft 501 is set as a hollow tube, which can achieve the purpose of transporting the cleaning liquid. The outer surface of the rotating shaft 501 is polished, which can reduce the wear generated when the rotating shaft 501 rotates, and can effectively increase the service life of the device. The first rotating motor 503 is an existing device, a common motor in the market, and the model of the first rotating motor 503 is not limited too much in this application.

[0030] Equidistantly arranged fixing rings 505 are fixedly connected to the outer surface of the rotating shaft 501. Three stirring rods 506 are fixedly connected to the outer surface of each fixing ring 505. See Figure 4 , the rotation of the rotating shaft 501 can drive the fixing ring 505 to rotate, and then can drive the stirring rods 506 to rotate, so as to mix and stir the food, and then can make the food form a sample required for detection.

[0031] An external connecting sleeve 507 is rotatably connected to the outer surface of the rotating shaft 501. Three groups of pressurized spray nozzles 508 arranged in a circumferential array are communicated with the outer surface of the rotating shaft 501. Three scraping plates 509 are rotatably connected to the inner wall of the sample preparation barrel 4. The outer surfaces of the three scraping plates 509 are respectively fixedly connected to one end of the three groups of stirring rods 506 away from the fixing ring 505.

[0032] See Figure 4 , the external connecting sleeve 507 can be used to connect the external water source, which can make it more convenient for the staff to add the cleaning liquid into the device and can effectively reduce the operation difficulty of the device. The pressurized spray nozzles 508 can spray the cleaning liquid inside the rotating shaft 501 under pressure, and can wash down the food residues on the inner wall of the sample preparation barrel 4. The rotation of the stirring rods 506 can drive the scraping plates 509 to rotate, so as to scrape down the food residues on the inner wall of the sample preparation barrel 4, ensuring the cleaning effect of the device and making it more convenient for the staff to clean the device.

[0033] An external connection pipe 5010 is provided outside the box body 1. The external connection pipe 5010 is inserted into the external sleeve 507. Through the external connection pipe 5010, the cleaning liquid can be transported into the sample preparation bucket 4, which makes it more convenient for the staff to add the cleaning liquid and can effectively reduce the operation difficulty of the device.

[0034] A bottom plate 7 is provided below the box body 1. Four corners of the upper surface of the bottom plate 7 are fixedly connected with support rods 8. The tops of the four support rods 8 are fixedly connected with the bottom surface of the box body 1. Through the bottom plate 7 and the support rods 8, the device can be supported, which can effectively increase the stability of the device and avoid the device from shaking during use. The support rods 8 are made of a material with high hardness, which can bear a large gravity without breaking and can effectively increase the safety of the device.

[0035] Four mounting holes 9 are opened on the upper surface of the bottom plate 7. The inner wall of each mounting hole 9 is threadedly connected with a mounting bolt 10. Through the mounting holes 9 and the mounting bolts 10, the device can be installed at the required position, which makes it more convenient for the staff to install the device and can effectively increase the practicality of the device.

[0036] The top end of each mounting bolt 10 is fixedly connected with a nut 11, and a washer 12 is sleeved on the outer surface of each mounting bolt 10. Through the nut 11, it is more convenient for the staff to rotate the mounting bolt 10. Through the washer 12, the bottom plate 7 can be protected, which can reduce the wear caused by the nut 11 to the bottom plate 7 and can effectively increase the service life of the device.

[0037] Working principle: When the device is in use, the sealing cover 15 needs to be opened first, and then the second rotary motor 6 is started. The crushing roller 3 can be driven to rotate by the second rotary motor 6. Then, food is added into the device. The food can be crushed by the crushing roller 3, and the crushed food will fall into the sample preparation barrel 4. Then, the first rotary motor 503 is started. The second pulley 504 can be driven to rotate by the first rotary motor 503, and then the first pulley 502 can be driven to rotate through the belt. The rotating shaft 501 can be driven to rotate by the rotation of the first pulley 502. Thus, the stirring rod 506 can be driven to rotate through the fixing ring 505, so that the food can be stirred and mixed, and the purpose of sample preparation can be achieved. Then, the sealing door 13 is opened, and the sample is taken out from the inside of the sample preparation barrel 4. When the device needs to be cleaned, an external water source is connected through the external sleeve 507, and then the cleaning liquid is transported into the inside of the rotating shaft 501 and sprayed out through the pressure spray head 508. Thus, the pressure spray head 508 can be driven to rotate and spray by the rotation of the rotating shaft 501. At the same time, the scraper 509 can be driven to rotate by the rotation of the stirring rod 506, and the food residues on the inner wall of the sample preparation barrel 4 can be scraped off, so that the purpose of cleaning the sample preparation barrel 4 can be achieved, and it is more convenient for the staff to clean the device.

[0038] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sample preparation device, comprising a box body (1), characterized in that: The inner wall of the box body (1) is fixedly connected with a fixing frame (2). The inner wall of the fixing frame (2) is rotatably connected with two crushing rollers (3). The inner wall of the box body (1) is fixedly connected with a sample preparation barrel (4). A stirring and cleaning mechanism (5) is arranged inside the box body (1). The stirring and cleaning mechanism (5) includes a rotating shaft (501). The bottom end of the rotating shaft (501) sequentially penetrates through the sample preparation barrel (4) and the box body (1) and extends to the outside of the box body (1). The outer surface of the rotating shaft (501) is fixedly connected with a first belt pulley (502). The bottom surface of the box body (1) is fixedly connected with a first rotating motor (503). The output end of the first rotating motor (503) is fixedly connected with a second belt pulley (504). The first rotating motor (503) and the second belt pulley (504) are connected by a belt drive. The outer surface of the rotating shaft (501) is fixedly connected with equally spaced fixing rings (505). The outer surface of each fixing ring (505) is fixedly connected with three stirring rods (506). The outer surface of the rotating shaft (501) is rotatably connected with an external connecting sleeve (507). The outer surface of the rotating shaft (501) is communicated with three groups of pressurized spray nozzles (508) arranged in a circumferential array. The inner wall of the sample preparation barrel (4) is rotatably connected with three scraping plates (509). The outer surfaces of the three scraping plates (509) are respectively fixedly connected with one ends of the three groups of stirring rods (506) far away from the fixing rings (505).

2. The sample preparation device according to claim 1, wherein: An external connecting pipe (5010) is arranged outside the box body (1). The external connecting pipe (5010) is inserted into the external connecting sleeve (507).

3. The sample preparation device according to claim 1, wherein: Two second rotating motors (6) are fixedly connected to the front surface of the crushing roller (3). The output ends of the two second rotating motors (6) both penetrate through the fixing frame (2) and extend to the inside of the fixing frame (2). The output ends of the two second rotating motors (6) are respectively fixedly connected to the front surfaces of the two crushing rollers (3).

4. The sample preparation device according to claim 1, wherein: A bottom plate (7) is arranged below the box body (1). Four corner positions on the upper surface of the bottom plate (7) are all fixedly connected with support rods (8). The top ends of the four support rods (8) are all fixedly connected to the bottom surface of the box body (1).

5. The sample preparation device according to claim 4, characterized in that: Four mounting holes (9) are formed in the upper surface of the bottom plate (7). The inner wall of each mounting hole (9) is threadedly connected with a mounting bolt (10).

6. The sample preparation device according to claim 5, characterized in that: The top end of each mounting bolt (10) is fixedly connected with a nut (11). A washer (12) is sleeved on the outer surface of each mounting bolt (10).

7. The sample preparation device according to claim 1, wherein: A sealing door (13) is hinged to the front surface of the box body (1) through a pin shaft. A handle (14) is fixedly connected to the front surface of the sealing door (13).

8. The sample preparation device according to claim 1, characterized in that; A sealing cover (15) is hinged to the upper surface of the box body (1) through a pin shaft. A grip (16) is fixedly connected to the upper surface of the sealing cover (15).

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