Sample crushing device for food detection

Abstract

The sample crushing device for food detection comprises an upper shell, the upper shell is of a cylindrical structure with an opening in the lower portion, a lower shell is fixedly installed on the lower surface of the upper shell, the lower shell is of a hemispherical structure with an opening in the upper surface, and the upper shell and the lower shell jointly form a shell structure of the device. According to the sample crushing device for food detection, an upper shell and a lower shell are arranged to form a device shell, a rotating cylinder driven by a motor is arranged in the shell, multiple layers of crushing cutters are arranged on the outer surface of the rotating cylinder, and the rotating cylinder rotates to drive the multiple layers of crushing cutters to rotate so as to crush food samples; in addition, a grating is arranged in the shell to screen the crushed food samples, a discharging plate rotating along with the rotating drum is arranged below the feeding pipe, and intermittent feeding of the feeding pipe can be achieved through rotation of the discharging plate.

Description

Technical Field

[0001] The utility model relates to the technical field of food detection, in particular to a sample crushing device used for food detection. Background Art

[0002] Food safety is a major and basic livelihood issue that concerns every family and every individual. Food testing can study and evaluate food quality and its changes. It is based on some basic theories and various technologies of physics, chemistry, and biochemistry, and in accordance with established technical standards, to inspect the quality of food raw materials, auxiliary materials, semi-finished products, finished products, and by-products to ensure that the product quality is qualified. Food testing requires the sample to be crushed and then diluted with solvent, and the test sample is extracted and placed in a special testing instrument to obtain the corresponding data. Since some food samples cannot be tested directly, a series of pre-treatments are required, among which crushing the test sample is an important part of the pre-treatment.

[0003] Existing crushing devices usually use a motor to drive blades and other tools through a drive shaft to crush food samples. Each link of the crushing process, such as feeding and discharging, mainly relies on manual operation. Experimenters need to pay attention to the operation of the crushing device at all times so as to replenish food samples to the crushing device in time. Therefore, the workload of experimenters is large and the process is cumbersome. In addition, multiple sampling can easily cause the device to contact with the external environment for a long time, and the samples are easily contaminated, resulting in low efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a sample crushing device for food testing. The device is provided with an automatic feeding box and a sampling port with a valve to reduce the contact between the sample and the external environment and avoid sample contamination, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sample crushing device for food testing, comprising an upper shell body, the upper shell body is a cylindrical structure open at the bottom, a lower shell body is fixedly installed on the lower surface of the upper shell body, the lower shell body is a hemispherical structure open on the upper surface, the upper shell body and the lower shell body together constitute the outer shell structure of the device, a storage box is mounted on the upper surface of the upper shell body, a rotatable top cover is arranged on the upper surface of the storage box, a feed pipe is arranged on the lower surface of the storage box, and the other end of the feed pipe passes through the upper surface of the upper shell body, a sampling tube and a slag discharge tube are arranged on the lower surface of the lower shell body, valves are arranged inside the sampling tube and the slag discharge tube to control opening and closing respectively, a crushing structure is arranged inside the outer shell structure constituted by the upper shell body and the lower shell body, and the crushing structure is provided with a crushing knife. During the crushing of the test sample, the grid can be used to screen the sample.

[0006] Preferably, the crushing structure includes a motor, which is fixedly mounted on the upper surface of the upper shell, and the output end of the motor passes through the upper surface of the upper shell and is connected to a rotating drum, which is located inside the outer shell structure, and a crushing knife is fixedly mounted on the outer surface of the rotating drum, and the crushing knife is arranged in multiple groups in parallel on the upper and lower outer surface of the rotating drum.

[0007] By adopting the above technical solution, the food sample can be crushed by using the rotating crushing knife.

[0008] Preferably, a grille is fixedly installed on the inner wall of the upper shell, and the grille is rotatably connected to the outer surface of the rotating drum. A scraper rod 1 is arranged above the grille, and the scraper rod 1 is a long strip structure and fixedly connected to the outer surface of the rotating drum. Two scraper rods are symmetrically arranged. A scraper rod 2 is arranged below the grille, and the scraper rod 2 is an arc rod structure, and the scraper rod 2 contacts the inner wall of the lower shell. The scraper rod 2 is fixedly connected to the surface of the rotating drum through a straight rod, and two scraper rods are symmetrically arranged.

[0009] By adopting the above technical solution, the crushed samples can be preliminarily screened using the grid.

[0010] Preferably, an intermittent feeding structure is arranged inside the upper shell, and the intermittent feeding structure is provided with a discharge plate to realize automatic intermittent feeding of the device.

[0011] By adopting the above technical solution and utilizing the intermittent feeding structure, intermittent feeding of food samples can be achieved.

[0012] Preferably, the intermittent feeding structure includes a discharge plate, which is a cylindrical structure with an open upper surface, and is fixedly connected to the outer surface of the rotating drum. The discharge plate contacts the lower surface of the feed pipe, and a circular through hole is provided on the surface of the discharge plate with the same diameter as the feed pipe.

[0013] By adopting the above technical solution, intermittent feeding of samples can be achieved by utilizing the rotating discharge plate.

[0014] Preferably, a cleaning structure is provided inside the upper shell, and a nozzle is provided in the cleaning structure to perform all-round cleaning on the inside of the device.

[0015] By adopting the above technical solution, the inside of the device can be cleaned in all directions using the cleaning structure.

[0016] Preferably, the cleaning structure includes a connecting cylinder 1, which is a hollow ring structure and is fixedly connected to the inner wall of the upper shell body. A water inlet pipe is provided on the surface of the connecting cylinder 1, and the other end of the water inlet pipe passes through the side surface of the upper shell body. The inner surface of the connecting cylinder 1 is rotatably connected to a connecting cylinder 2, which is a hollow ring structure and the outer surface of the connecting cylinder 2 passes through the inner surface of the connecting cylinder 1. The connecting cylinder 2 is fixedly connected to the outer surface of the rotating cylinder through a connecting rod, and a plurality of nozzles are provided in a ring shape on the lower surface of the connecting cylinder 2.

[0017] By adopting the above technical solution, the rotating connecting tube 2 can drive the nozzle to rotate to achieve cleaning of the device.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the sample crushing device for food testing:

[0019] 1. The device is provided with an upper shell and a lower shell to form the shell of the device, a motor-driven drum is provided inside the shell, and a multi-layer crushing knife is provided on the outer surface of the drum. The multi-layer crushing knife is driven to rotate by the rotation of the drum to crush the food sample, and a grid is provided inside the shell to screen the crushed food sample. A discharge plate is provided below the feed pipe to rotate with the drum, and the rotation of the discharge plate can realize intermittent feeding of the feed pipe;

[0020] 2. The device is provided with a scraper rod 1 and a scraper rod 2 respectively above and below the grille, and the scraper rod 1 and the scraper rod 2 are respectively fixedly connected to the surface of the rotating drum, the scraper rod 1 contacts the surface of the grille, and the scraper rod 2 contacts the inner wall of the lower shell. When the device is running to crush the food sample, the scraper rod 1 and the scraper rod 2 can prevent the grille from being blocked and the sample from being attached to the wall;

[0021] 3. The device has a connecting tube 1 on the inner wall of the upper shell, which is connected to the water inlet pipe. The inner surface of the connecting tube 1 is rotatably connected to the connecting tube 2. A nozzle is arranged on the surface of the connecting tube 2, and the connecting tube 2 can rotate under the drive of the rotating drum. The rotating connecting tube 2 drives the nozzle to rotate, so as to perform all-round cleaning on the inside of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the front section structure of the upper shell and the lower shell of the utility model;

[0024] Figure 3 This is a schematic diagram of the front cross-section structure of the discharge plate of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the connecting tube and the second connecting tube of the utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the utility model;

[0027] Figure 6 This is a schematic diagram of the rotary drum and grille structure of the utility model.

[0028] In the figure: 1. upper shell; 2. lower shell; 3. storage box; 4. feed pipe; 5. sampling tube; 6. slag discharge pipe; 7. motor; 8. rotating drum; 9. crushing knife; 10. grid; 11. scraper rod 1; 12. scraper rod 2; 13. discharge plate; 14. connecting tube 1; 15. water inlet pipe; 16. connecting tube 2; 17. nozzle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6 The utility model provides a technical solution: a sample crushing device for food testing, including an upper shell 1, a lower shell 2, a storage box 3, a feed pipe 4, a sampling pipe 5, a slag discharge pipe 6, a motor 7, a rotating drum 8, a crushing knife 9, a grid 10, a scraper rod 11, a scraper rod 2 12, a discharge plate 13, a connecting tube 14, a water inlet pipe 15, a connecting tube 2 16, and a nozzle 17.

[0031] The upper shell 1 is a cylindrical structure with an open bottom. The lower shell 2 is fixedly installed on the lower surface of the upper shell 1. The lower shell 2 is a hemispherical structure with an open upper surface. The upper shell 1 and the lower shell 2 together constitute the outer shell structure of the device. A storage box 3 is mounted on the upper surface of the upper shell 1. A rotating top cover is arranged on the upper surface of the storage box 3. A feed pipe 4 is arranged on the lower surface of the storage box 3, and the other end of the feed pipe 4 passes through the upper surface of the upper shell 1. A sampling tube 5 and a slag discharge tube 6 are arranged on the lower surface of the lower shell 2. Valves are arranged inside the sampling tube 5 and the slag discharge tube 6 to control the opening and closing. The crushing structure The device comprises a motor 7, which is fixedly mounted on the upper surface of the upper shell 1. The output end of the motor 7 penetrates through the upper surface of the upper shell 1 and is connected to a rotating drum 8. The rotating drum 8 is located inside the outer shell structure. An intermittent feeding structure is arranged inside the upper shell 1. The intermittent feeding structure is provided with a discharge plate 13 to realize automatic intermittent feeding of the device. The intermittent feeding structure comprises a discharge plate 13. The discharge plate 13 is a cylindrical structure with an open upper surface. The discharge plate 13 is fixedly connected to the outer surface of the rotating drum 8. The discharge plate 13 contacts the lower surface of the feed pipe 4. The surface of the discharge plate 13 is provided with a circular through hole having the same diameter as the feed pipe 4.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, when using the device, rotate the top cover on the upper surface of the storage box 3, put the food sample to be crushed into the storage box 3, and close the top cover of the storage box 3, start the motor 7, the motor 7 drives the rotating drum 8 to rotate, and the rotating rotating drum 8 drives the discharge plate 13 to rotate. When the discharge plate 13 rotates, when the circular through hole on the surface of the discharge plate 13 is aligned with the lower end of the feed tube 4, the food sample falls from the storage box 3 and the feed tube 4 and enters the device for the crushing process. When the circular through hole on the surface of the discharge plate 13 is staggered with the lower end of the feed tube 4, the food sample is blocked by the discharge plate 13, so that the food sample in the storage box 3 is automatically intermittently fed, and the food sample is crushed in the device.

[0033] A crushing structure is arranged inside the outer shell structure formed by the upper shell 1 and the lower shell 2. The crushing structure is provided with a crushing knife 9. During the crushing of the test sample, the grid 10 can be used to screen the sample. A crushing knife 9 is fixedly installed on the outer surface of the rotating drum 8. A plurality of groups of crushing knives 9 are arranged in parallel up and down on the outer surface of the rotating drum 8. A grid 10 is fixedly installed on the inner wall of the upper shell 1. The grid 10 is rotatably connected to the outer surface of the rotating drum 8. A scraper rod 11 is arranged above the grid 10. The scraper rod 11 is a long strip structure, and the scraper rod 11 is fixedly connected to the outer surface of the rotating drum 8. Two scraper rods 11 are symmetrically arranged. A scraper rod 2 12 is arranged below the grid 10. The scraper rod 2 12 is an arc rod structure, and the scraper rod 2 12 contacts the inner wall of the lower shell 2. The scraper rod 2 12 is fixedly connected to the surface of the rotating drum 8 through a straight rod. Two scraper rods 12 are symmetrically arranged.

[0034] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, when the food sample falls into the device, the motor 7 drives the drum 8 to rotate, and the rotating drum 8 drives the crushing knife 9 to rotate. The multi-layer rotating crushing knife 9 crushes the food sample. The crushed food sample falls on the surface of the grid 10. The small volume passes through the grid 10 and falls into the lower shell 2 below. The large volume sample is intercepted by the grid 10 and continues to be crushed by the crushing knife 9 until it passes through the grid 10. When the drum 8 rotates, the drum 8 drives the scraper rod 11 and the scraper rod 2 12 to rotate at the same time. The scraper rod 11 moves on the surface of the grid 10 to prevent the sample from blocking the grid 10. The scraper rod 2 12 moves on the inner wall of the lower shell 2 to prevent the sample from hanging on the wall. After the sample is crushed, the valve at the sampling tube 5 is opened to take out the crushed sample to avoid excessive contact between the sample and the external environment, thereby contaminating the sample.

[0035] A cleaning structure is arranged inside the upper shell 1, and a nozzle 17 is arranged on the cleaning structure to perform all-round cleaning on the inside of the device. The cleaning structure includes a connecting cylinder 14, which is a hollow annular structure, and is fixedly connected to the inner wall of the upper shell 1. A water inlet pipe 15 is arranged through the surface of the connecting cylinder 14, and the other end of the water inlet pipe 15 passes through the side surface of the upper shell 1. A connecting cylinder 2 16 is rotatably connected to the inner surface of the connecting cylinder 14, and the connecting cylinder 2 16 is a hollow annular structure, and the outer surface of the connecting cylinder 2 16 passes through the inner surface of the connecting cylinder 14. The connecting cylinder 2 16 is fixedly connected to the outer surface of the rotating cylinder 8 through a connecting rod, and a plurality of nozzles 17 are arranged in an annular manner on the lower surface of the connecting cylinder 2 16;

[0036] like Figure 2 , Figure 3 and Figure 4 As shown, after the sample is crushed, the water inlet pipe 15 is connected to an external cleaning water source, so that the cleaning water enters the interior of the connecting tube 14 from the water inlet pipe 15, and enters the connecting tube 2 16 through the connecting tube 14, and is sprayed from the nozzle 17 to clean the inner wall of the device. The connecting tube 2 16 rotates with the rotation of the rotating drum 8, and the rotation of the connecting tube 2 16 drives the nozzle 17 to rotate. The rotating nozzle 17 sprays the cleaning water evenly on the inner wall of the device, thereby cleaning the device in all directions, and the valve at the slag discharge pipe 6 is opened to discharge the cleaning water and residue from the slag discharge pipe 6 to complete the cleaning process of the device.

[0037] Working principle: When using the sample crushing device for food testing, put the food sample into the storage box 3, turn on the motor 7, the motor 7 drives the rotating drum 8 to rotate, the rotating rotating drum 8 drives the discharging plate 13 to rotate, and the circular through holes on the surface of the discharging plate 13 can be used to realize the automatic intermittent feeding of food. After the food enters from the feeding pipe 4, the rotating crushing knife 9 can realize the crushing process of the food. The crushed food sample falls on the surface of the grille 10, and the grille 10 can be used to preliminarily screen the food sample. At the same time, the rotating scraper One 11 and scraper rod two 12 can prevent the grid 10 from being blocked and the sample from hanging on the wall. The sample can be sampled using the sampling tube 5 after being crushed to avoid excessive contact between the sample and the external environment, thereby preventing the sample from being contaminated. The device can be cleaned using the connecting tube one 14 and the connecting tube two 16 arranged on the inner wall of the upper shell 1. A nozzle 17 is arranged on the surface of the connecting tube two 16. The connecting tube two 16 can rotate under the drive of the rotating drum 8, thereby driving the nozzle 17 to rotate, and the inside of the device is cleaned in all directions, thereby increasing the overall practicality.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sample crushing device for food testing, comprising an upper shell (1), the upper shell (1) being a cylindrical structure with an open bottom, a lower shell (2) being fixedly mounted on the lower surface of the upper shell (1), the lower shell (2) being a hemispherical structure with an open upper surface, the upper shell (1) and the lower shell (2) together forming an outer shell structure of the device, a material storage box (3) being mounted on the upper surface of the upper shell (1), a top cover that can be swiveled to be opened being arranged on the upper surface of the material storage box (3), a feed pipe (4) being arranged on the lower surface of the material storage box (3), and the other end of the feed pipe (4) passing through the upper surface of the upper shell (1), a sampling tube (5) and a slag discharge tube (6) being arranged through the lower surface of the lower shell (2), valves being arranged inside the sampling tube (5) and the slag discharge tube (6) for controlling opening and closing, characterized in that: A crushing structure is arranged inside the outer shell structure formed by the upper shell (1) and the lower shell (2). The crushing structure is provided with a crushing knife (9) to crush the test sample, and the grid (10) can be used to screen the sample during the process.

2. A sample crushing device for food testing according to claim 1, characterized in that: The crushing structure comprises a motor (7), the motor (7) is fixedly mounted on the upper surface of the upper shell (1), the output end of the motor (7) passes through the upper surface of the upper shell (1) and is connected to a rotating drum (8), the rotating drum (8) is located inside the outer shell structure, and crushing knives (9) are fixedly mounted on the outer surface of the rotating drum (8), and the crushing knives (9) are arranged in multiple groups in parallel on the outer surface of the rotating drum (8) in an upper and lower direction.

3. The sample crushing device for food testing according to claim 1, characterized in that: A grille (10) is fixedly mounted on the inner wall of the upper shell (1), and the grille (10) is rotatably connected to the outer surface of the rotating drum (8). A scraper rod (11) is arranged above the grille (10), and the scraper rod (11) is a long strip structure, and the scraper rod (11) is fixedly connected to the outer surface of the rotating drum (8). Two scraper rods (11) are symmetrically arranged. A scraper rod (12) is arranged below the grille (10), and the scraper rod (12) is an arc rod structure, and the scraper rod (12) contacts the inner wall of the lower shell (2). The scraper rod (12) is fixedly connected to the surface of the rotating drum (8) through a straight rod, and two scraper rods (12) are symmetrically arranged.

4. A sample crushing device for food testing according to claim 1, characterized in that: An intermittent feeding structure is arranged inside the upper shell (1), and a discharge plate (13) is arranged on the intermittent feeding structure to realize automatic intermittent feeding of the device.

5. A sample crushing device for food testing according to claim 4, characterized in that: The intermittent feeding structure comprises a discharge plate (13), which is a cylindrical structure with an open upper surface, and the discharge plate (13) is fixedly connected to the outer surface of the rotating drum (8), the discharge plate (13) is in contact with the lower surface of the feed pipe (4), and the surface of the discharge plate (13) is provided with a circular through hole with the same diameter as the feed pipe (4).

6. The sample crushing device for food testing according to claim 1, characterized in that: A cleaning structure is arranged inside the upper shell (1), and a nozzle (17) is arranged on the cleaning structure to perform all-round cleaning on the inside of the device.

7. A sample crushing device for food testing according to claim 6, characterized in that: The cleaning structure comprises a connecting tube (14), which is a hollow annular structure and is fixedly connected to the inner wall of the upper shell (1). A water inlet pipe (15) is provided through the surface of the connecting tube (14), and the other end of the water inlet pipe (15) passes through the side surface of the upper shell (1). The inner surface of the connecting tube (14) is rotatably connected to a connecting tube (16), which is a hollow annular structure and the outer surface of the connecting tube (16) passes through the inner surface of the connecting tube (14). The connecting tube (16) is fixedly connected to the outer surface of the rotating drum (8) through a connecting rod, and a plurality of nozzles (17) are provided in an annular manner on the lower surface of the connecting tube (16).

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