Tea polyphenol component detection equipment of jasmine tea and detection method of tea polyphenol component detection equipment

Abstract

The invention discloses tea polyphenol component detection equipment for jasmine tea and a detection method thereof. The tea polyphenol component detection equipment comprises a spectrophotometer host, and the lower end of the spectrophotometer host is fixedly connected with a bottom support bin. Through the arrangement of the grinding box and the crushing knife rest, in the use process, jasmine tea needing to be detected is placed in the grinding box, then the pressing frame is assembled, through the pressing frame and second filter cloth, the movable space of the jasmine tea is limited, the jasmine tea is made to be close to the crushing knife rest, and therefore the crushing speed is increased; a solvent is placed in the grinding box, separation of tea polyphenol is accelerated through rotation of the crushing knife rest, meanwhile, sufficient extraction of the tea polyphenol can be guaranteed, the solution is directly filtered through the second filter cloth, the solution is taken out through the suction pipe and placed in the cuvette, then the cuvette is placed in the sample chamber, detection can be conducted, overall use is simple, and the detection efficiency is high. The device can directly measure on site, integrates components required by detection into a whole, and is convenient to carry.

Description

Technical Field

[0001] The invention relates to the technical field of tea polyphenol component detection, in particular to a tea polyphenol component detection device for jasmine tea and a detection method thereof. Background Art

[0002] Tea polyphenols is the general name for polyphenols in tea leaves. It is a white amorphous powder that is easily soluble in water, soluble in ethanol, methanol, acetone, and ethyl acetate, but insoluble in chloroform. The content of tea polyphenols in green tea is relatively high, accounting for 15% to 30% of its mass. The main components of tea polyphenols are: 6 types of compounds: flavanones, anthocyanidins, flavonols, anthocyanidins, phenolic acids, and phenolic acids. Among them, flavanones (mainly catechin compounds) are the most important, accounting for 60% to 80% of the total amount of tea polyphenols, followed by flavonoids. The content of other phenolic substances is relatively small. After the preparation of jasmine tea is completed, some jasmine tea will be sold directly, while the other part will be processed and made into tea beverages and other products. In order to ensure the quality of jasmine tea products, it is necessary to test the tea polyphenols in jasmine tea.

[0003] In the prior art, the tea polyphenol component of jasmine tea is detected by quality inspectors taking samples on site and then taking them to the laboratory for testing. The samples need to be marked on their storage equipment and then protected and stored by separate storage equipment. The whole process is time-consuming and labor-intensive, and the detection is inconvenient. Because a lot of equipment is required for the test, it is impossible to bring the equipment required for the test to the site for direct testing, which makes the test inconvenient. Summary of the invention

[0004] The purpose of the present invention is to provide a tea polyphenol component detection device and a detection method for jasmine tea, so as to solve the problem that the tea polyphenol component detection method of jasmine tea proposed in the above-mentioned background technology is that quality inspectors go to the site to take samples and then take them to the laboratory for testing. The sampled samples need to be marked on their storage equipment and then protected and stored by a separate storage equipment. The whole process is time-consuming and labor-intensive, and the detection is inconvenient. Because more equipment is required for the detection, the equipment required for the detection cannot be brought to the site for direct detection, resulting in inconvenient detection.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tea polyphenol component detection device for jasmine tea, comprising a spectrophotometer host, the lower end of the spectrophotometer host is fixedly connected with a bottom supporting bin, the two sides inside the bottom supporting bin are respectively slidably connected with a crushing bin and a storage bin, the two sides of the middle part of the lower end of the crushing bin are fixedly connected with a base frame, the middle part of the base frame is provided with a motor slot, the inside of the motor slot is fixedly connected with a driving motor, an inner support disk is provided above the driving motor, the middle part of the inner support disk is penetrated with an assembly slot, the output end of the driving motor is plugged into the assembly slot, a grinding box is provided above the inner support disk, the middle part of the grinding box is rotatably connected with a crushing tool holder, the lower end of the crushing tool holder is plugged into the assembly slot, the upper end of the grinding box is provided with an inner slot, the inside of the inner slot is clamped with a pressing frame, the inner side of the pressing frame is fixedly connected with a No. 2 filter cloth, and the inside of the storage bin is used to place accessories required for tea polyphenol detection such as a cuvette, distilled water, and an adaptive solvent.

[0006] Preferably, blades are fixedly connected to the outer surface of the inner support plate, a No. 2 side through groove is provided at the lower end of both sides of the crushing bin, a No. 1 side through groove is provided at the lower middle part of both sides of the bottom supporting bin, the No. 1 side through groove is connected with the No. 2 side through groove, an air inlet is provided on one side of the spectrophotometer host, an air inlet frame is fixedly connected to the inside of the air inlet, and a No. 1 filter cloth is fixedly connected to the inside of the air inlet frame.

[0007] Preferably, an inner limit ring and an outer limit ring are provided on the outer side of the motor slot, the upper surfaces of the inner limit ring and the outer limit ring are higher than the upper surface of the base frame, and a thrust bearing is provided between the outer limit ring and the inner limit ring.

[0008] Preferably, an outer annular groove is provided at the outer edge of the lower end of the inner support disk, the upper end surface of the outer annular groove is in contact with the upper end surface of the thrust bearing, and the upper surface of the drive motor does not contact the inner support disk.

[0009] Preferably, a connecting block is fixedly connected to the interior of the crushing bin, and one end of the connecting block is fixedly connected to an inner clamping frame.

[0010] Preferably, four corners of the grinding box are all penetrated with side slots, one side of the side slot is provided with a side extension slot, the side extension slot is slidably connected to the connecting block, and the inner card frame is snap-connected with the side slot.

[0011] Preferably, the inner card frame is of hollow design, a cover is provided at the upper end of the grinding box, four corners of the lower end of the cover are engaged with the side card slots, and through holes are provided at the four corners, and the through holes are connected with the side card slots.

[0012] Preferably, a stacking box is provided on one side of the storage bin, a clamping rod is provided at the middle of both sides of the stacking box, and a slide groove is provided on both sides of the storage bin, and the slide groove is clamped with the clamping rod.

[0013] Preferably, an assembly groove is provided inside the bottom supporting bin, threaded holes are provided at the lower middle part on both sides of the assembly groove, No. 2 filter cloth is provided at the lower middle part of the crushing bin and the storage bin, a fastening rod is rotatably connected inside the No. 2 filter cloth, one end of the fastening rod is threaded, one end of the fastening rod is threadedly connected to the threaded hole, and the other end of the fastening rod is rotatably connected to a rotating paddle, a sample chamber is provided on one side inside the main body of the spectrophotometer, a sample chamber flap is rotatably connected inside the sample chamber, a protective gasket is fixedly connected to the middle part of one side of the sample chamber flap, an inner groove is provided on one side of the main body of the spectrophotometer, a positioning pull rod is provided inside the inner groove, and a control component is fixedly installed on one side of the upper end of the main body of the spectrophotometer.

[0014] A method for detecting tea polyphenols in jasmine tea comprises the following steps:

[0015] S1. Buckle out and rotate the rotating paddle to disconnect the fastening rod from the threaded hole, so as to pull out the crushing bin and the storage bin, take out the items required for testing stored in the storage bin and the stacking box, and then take out the grinding box;

[0016] S2. Put the jasmine tea into the grinding box, connect the pressing frame with the inner slot, install the cover with the grinding box, then install the crushing tool holder with the assembly slot, push the crushing bin into the bottom support bin, turn the rotating paddle, and connect the fastening rod with the threaded hole;

[0017] S3, control the drive motor to start, the crushing knife holder crushes the jasmine tea, then the grinding box is taken out, the solvent is dripped into it, and then the crushing bin is placed in the bottom support bin, and the drive motor is turned on to mix the solvent with the jasmine tea to precipitate tea polyphenols;

[0018] S4. Take out the grinding box, push the crushing bin into the bottom support bin, use a pipette to suck out the solvent, drip it into the cuvette, then place the cuvette in the sample chamber, operate the control component and the adjustment lever to detect the components of tea polyphenols;

[0019] S5. After the test is completed, rinse the cuvette and grinding box with distilled water, and then wipe them dry with a paper towel.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, by setting the grinding box and the crushing tool holder, when in use, the jasmine tea to be tested is placed in the grinding box, and then the pressing frame is assembled. The pressing frame and the No. 2 filter cloth limit the movable space of the jasmine tea, so that the jasmine tea is close to the crushing tool holder, thereby increasing the crushing speed. After crushing, the solvent is placed inside the grinding box, and then the precipitation of tea polyphenols is accelerated by the rotation of the crushing tool holder, and at the same time, the full extraction of tea polyphenols can be guaranteed. The solution is directly filtered through the No. 2 filter cloth, and the solution is taken out with a straw and placed in a cuvette, and then the cuvette is placed in the sample chamber for detection. The overall use is relatively simple, and can be directly measured on site. The components required for detection are integrated into one, which is relatively convenient to carry, and will not affect the detection of tea polyphenol components. Because the storage bin and the crushing bin are placed at the bottom, when working, the mass at the bottom is large, the center of gravity moves downward, and the stability of use can be guaranteed.

[0022] 2. In the present invention, by setting the blades, when the main body of the spectrophotometer is detecting the tea polyphenol components, the driving motor can be turned on to drive the blades to rotate, so as to dissipate heat inside the main body of the spectrophotometer. In this way, the same driving source can be used for grinding and heat dissipation. By setting the No. 2 side through groove and the No. 1 side through groove, the grinding box can be used to grind or stir other jasmine teas during the detection process of the main body of the spectrophotometer, thereby improving the detection efficiency and being more convenient to use. By setting the thrust bearing and the outer ring groove, the inner support plate is supported so that the weight of the inner support plate and the grinding box does not press on the driving motor, thereby reducing the burden on the driving motor, so that the power of the driving motor is only used to drive the inner support plate and the crushing tool holder to rotate, which is more efficient. The connection between the grinding box, the inner support plate and the crushing bin is a detachable design, so that they can be replaced when damaged, and disassembly is more convenient.

[0023] 3. In the present invention, the connection block and the inner card frame are arranged to not only support the grinding box, but also limit the grinding box to ensure the stability of the grinding box when in use. The design of the inner card frame and the notch on the cover increases the flow of airflow to ensure the heat dissipation effect of the blades on the internal components of the spectrophotometer host. The setting of the No. 1 filter cloth filters the dust in the air to prevent the dust from affecting the internal components of the spectrophotometer host. The connection between the sample chamber cover and the spectrophotometer host adopts a double folding design, so that when the sample chamber cover is opened, it is in a flat state to avoid contrast. The installation of the color dish is not affected, and it is relatively simple to use. When closed, it can also ensure the flatness of the upper end of the spectrophotometer host and will not be damaged due to bumps. Through the setting of the inner groove, when the adjustment rod is fully inserted, it does not protrude from one side of the spectrophotometer host, avoiding the adjustment rod from being bumped during movement and causing damage. Through the setting of the No. 2 filter cloth, it is ensured that the fastening rod and the bottom supporting bin are installed, and the rotating paddle is also located on the inside to further increase the protection effect and avoid damage. The connection between the fastening rod and the bottom supporting bin is used to fix the crushing bin and the storage bin respectively, with high stability and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The three-dimensional structure diagram of a tea polyphenol component detection device and a detection method of jasmine tea of ​​the present invention Figure 1 ;

[0025] Figure 2 The three-dimensional structure diagram of a tea polyphenol component detection device and a detection method of jasmine tea of ​​the present invention Figure 2 ;

[0026] Figure 3 It is a schematic diagram of the expanded state of a tea polyphenol component detection device and a detection method of jasmine tea according to the present invention;

[0027] Figure 4 It is a schematic diagram of the connection state of the bottom supporting bin, the crushing bin and the storage bin in a tea polyphenol component detection device and a detection method of jasmine tea according to the present invention;

[0028] Figure 5 It is an exploded view of the connection structure between the crushing bin and the grinding box in a tea polyphenol component detection device and a detection method of jasmine tea of ​​the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of a crushing bin in a tea polyphenol component detection device and a detection method of jasmine tea according to the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of an inner support plate in a device for detecting tea polyphenol components of jasmine tea and a detection method thereof according to the present invention;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of a grinding box in a device for detecting tea polyphenol components of jasmine tea and a method for detecting the same according to the present invention;

[0032] Fig. 9 The present invention is a schematic diagram of the connection state of the storage bin and the stacking box in a tea polyphenol component detection device and a detection method of jasmine tea.

[0033] In the figure:

[0034] 1. Spectrophotometer host; 2. Control components; 3. Sample chamber cover; 4. Protective gasket; 5. Inner groove; 6. Adjustment rod; 7. Bottom support bin; 8. No. 1 side slot; 9. Storage bin; 10. Fastening rod; 11. Rotating paddle; 12. Crushing bin; 13. No. 2 side slot; 14. Air intake rack; 15. No. 1 filter cloth; 16. Sample chamber; 17. Stacking box; 18. Cover; 19. Assembly slot; 20. Grinding box ; 21. No. 2 filter cloth; 22. Pressing frame; 23. Inner slot; 24. Crushing tool holder; 25. Side slot; 26. Side extension slot; 27. Inner support plate; 28. Driving motor; 29. ​​Thrust bearing; 30. Connecting block; 31. Inner frame; 32. Base frame; 33. Outer limit ring; 34. Inner limit ring; 35. Motor slot; 36. Blade; 37. Assembly slot; 38. Outer ring groove; 39. Clamp rod; 40. Slide groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 and Fig. 9As shown: a tea polyphenol component detection device for jasmine tea, comprising a spectrophotometer mainframe 1, a bottom support bin 7 is fixedly connected to the lower end of the spectrophotometer mainframe 1, a crushing bin 12 and a storage bin 9 are slidably connected to the two sides of the bottom support bin 7, a bottom frame 32 is fixedly connected to the middle of the lower end of the crushing bin 12, a motor slot 35 is provided in the middle of the bottom frame 32, a driving motor 28 is fixedly connected to the inside of the motor slot 35, an inner support plate 27 is provided above the driving motor 28, and an assembly is provided through the middle of the inner support plate 27 Slot 37, the output end of the driving motor 28 is plugged into the assembly slot 37, a grinding box 20 is arranged above the inner support plate 27, the middle part of the grinding box 20 is rotatably connected to the crushing tool holder 24, the lower end of the crushing tool holder 24 is plugged into the assembly slot 37, an inner card slot 23 is opened at the upper end of the grinding box 20, a pressing frame 22 is carded inside the inner card slot 23, a No. 2 filter cloth 21 is fixedly connected to the inner side of the pressing frame 22, and the interior of the storage bin 9 is used to place colorimetric dishes, distilled water, adaptive solvents and other accessories required for tea polyphenols detection.

[0037] In the present invention, by setting the grinding box 20 and the crushing tool holder 24, when in use, the jasmine tea to be tested is placed in the grinding box 20, and then the pressing frame 22 is assembled. The pressing frame 22 and the second filter cloth 21 limit the movable space of the jasmine tea, so that the jasmine tea is close to the crushing tool holder 24, thereby increasing the crushing speed. After crushing, the solvent is placed in the grinding box 20, and then the precipitation of tea polyphenols is accelerated by the rotation of the crushing tool holder 24, and at the same time, the full extraction of tea polyphenols can be guaranteed. The solution is directly filtered through the second filter cloth 21, and the solution is taken out with a straw and placed in a cuvette, and then the cuvette is placed in the sample chamber 16 for testing. The overall use is relatively simple, and can be directly measured on site. The components required for detection are integrated into one, which is relatively convenient to carry, and will not affect the detection of tea polyphenol components. Because the storage bin 9 and the crushing bin 12 are placed at the bottom, the mass at the bottom is large during work, and the center of gravity moves downward, which can ensure stability in use.

[0038] Embodiment 2: Figure 5 - Figure 8As shown, the outer surface of the inner support plate 27 is fixedly connected with a blade 36, the lower ends of both sides of the crushing bin 12 are provided with a No. 2 side through groove 13, the middle lower part of both sides of the bottom support bin 7 is provided with a No. 1 side through groove 8, the No. 1 side through groove 8 is connected with the No. 2 side through groove 13, an air inlet is provided on one side of the spectrophotometer host 1, the inside of the air inlet is fixedly connected with an air inlet frame 14, the inside of the air inlet frame 14 is fixedly connected with a No. 1 filter cloth 15, the outer side of the motor slot 35 is provided with an inner limit ring 34 and an outer limit ring 33, the inner limit ring 34 is provided with an outer limit ring 33, and the inner limit ring 34 is provided with an outer limit ring 33. 4 and the upper surface of the outer limit ring 33 are higher than the upper surface of the base frame 32, a thrust bearing 29 is arranged between the outer limit ring 33 and the inner limit ring 34, an outer ring groove 38 is provided at the outer edge of the lower end of the inner support plate 27, the upper end surface of the outer ring groove 38 is in contact with the upper end surface of the thrust bearing 29, the upper surface of the drive motor 28 does not contact the inner support plate 27, and a notch is provided at the lower end of the inner support plate 27 to ensure the installation of the drive motor 28 and to ensure that the power of the drive motor 28 can drive the crushing tool holder 24 and the inner support plate 27 to rotate.

[0039] In the present invention, by setting the blades 36, when the spectrophotometer host 1 performs tea polyphenol component detection, the drive motor 28 can be turned on to drive the blades 36 to rotate, so as to dissipate heat inside the spectrophotometer host 1. In this way, the same drive source can be used for grinding and heat dissipation. By setting the No. 2 side through groove 13 and the No. 1 side through groove 8, the grinding box 20 can be used to grind or stir other jasmine teas during the detection process of the spectrophotometer host 1, thereby improving the detection efficiency and being more convenient to use. By setting the thrust bearing 29 and the outer ring groove 38, the inner support plate 27 is supported, so that the weight of the inner support plate 27 and the grinding box 20 does not press on the drive motor 28, thereby reducing the burden of the drive motor 28, so that the power of the drive motor 28 is only used to drive the inner support plate 27 and the crushing tool holder 24 to rotate, which is more efficient. The connection between the grinding box 20, the inner support plate 27 and the crushing bin 12 is a detachable design, so that they can be replaced when damaged, and disassembly is more convenient.

[0040] Embodiment 3: According to Figure 1 - Fig. 9As shown, the crushing chamber 12 is fixedly connected with a connecting block 30 inside, one end of the connecting block 30 is fixedly connected with an inner card frame 31, the four corners of the grinding box 20 are penetrated with side card slots 25, one side of the side card slot 25 is provided with a side extension slot 26, the side extension slot 26 is slidably connected with the connecting block 30, the inner card frame 31 is engaged with the side card slot 25, the inner card frame 31 is of hollow design, the upper end of the grinding box 20 is provided with a cover 18, and the four corners of the lower end of the cover 18 are connected with the side card slots. The bottom bracket 7 is provided with an assembly groove 19, and the middle of the two sides of the assembly groove 19 are provided with threaded holes, and the crushing bin 12 and the storage bin 9 are provided with two lower middle parts. Filter cloth No. 21, filter cloth No. 21 is internally rotatably connected with a fastening rod 10, one end of the fastening rod 10 is threaded, one end of the fastening rod 10 is threadedly connected to the threaded hole, and the other end of the fastening rod 10 is rotatably connected with a rotating paddle 11, a sample chamber 16 is provided on one side inside the spectrophotometer host 1, a sample chamber flap 3 is rotatably connected inside the sample chamber 16, a protective gasket 4 is fixedly connected to the middle part of one side of the sample chamber flap 3, an inner groove 5 is provided on one side of the spectrophotometer host 1, a positioning pull rod 6 is provided inside the inner groove 5, a control component 2 is fixedly installed on one side of the upper end of the spectrophotometer host 1, the interior of the assembly slot 19 is used to install a circuit for powering the drive motor 28, and the power supply mode is adjusted according to demand. When using electric wires for direct connection, a wire-winding mechanism needs to be provided inside the assembly slot 19 to ensure that when the crushing bin 12 is pushed into the bottom supporting bin 7, the circuit will not accumulate between the crushing bin 12 and the bottom supporting bin 7.

[0041] In the present invention, the connection block 30 and the inner card frame 31 are provided, which are not only used to support the grinding box 20, but also to limit the grinding box 20, thereby ensuring the stability of the grinding box 20 when in use. The design of the inner card frame 31 and the notch on the cover 18 increases the flow of airflow, thereby ensuring the heat dissipation effect of the blades 36 on the internal components of the spectrophotometer host 1. The setting of the No. 1 filter cloth 15 filters the dust in the air, thereby preventing the dust from affecting the internal components of the spectrophotometer host 1. The connection between the sample chamber flip cover 3 and the spectrophotometer host 1 adopts a double folding design, so that when the sample chamber flip cover 3 is opened, it is in a lying state, thereby preventing the sample chamber flip cover 3 from being in a lying state. The installation of the cuvette is not affected, and it is relatively simple to use. When closed, the flatness of the upper end of the spectrophotometer host 1 can be ensured, and it will not be damaged due to bumps. Through the setting of the inner groove 5, when the adjustment rod 6 is fully inserted, it does not protrude from one side of the spectrophotometer host 1, so as to avoid bumping the adjustment rod 6 during movement and causing damage. Through the setting of the No. 2 filter cloth 21, it is ensured that the fastening rod 10 and the bottom supporting bin 7 are installed, and the rotating paddle 11 is also located on the inside to further increase the protection effect and avoid damage. The connection between the fastening rod 10 and the bottom supporting bin 7 is used to fix the crushing bin 12 and the storage bin 9 respectively, which has high stability and is more convenient to use.

[0042] Embodiment 4: A method for detecting tea polyphenols in jasmine tea, comprising the following steps:

[0043] Step 1: buckle and rotate the rotating paddle 11 to disconnect the fastening rod 10 from the threaded hole, so as to pull out the crushing bin 12 and the storage bin 9, take out the items required for testing stored in the storage bin 9 and the stacking box 17, and then take out the grinding box 20;

[0044] Step 2: Put the jasmine tea into the grinding box 20, connect the pressing frame 22 with the inner card slot 23, install the cover 18 with the grinding box 20, then install the crushing tool holder 24 with the assembly slot 37, push the crushing bin 12 into the bottom support bin 7, rotate the rotating paddle 11, and connect the fastening rod 10 with the threaded hole;

[0045] Step 3, control the drive motor 28 to start, the crushing knife holder 24 crushes the jasmine tea, then take out the grinding box 20, drip the solvent, then place the crushing bin 12 in the bottom support bin 7, start the drive motor 28, and mix the solvent with the jasmine tea to precipitate tea polyphenols;

[0046] Step 4: Take out the grinding box 20, push the crushing chamber 12 into the bottom support chamber 7, use a pipette to suck out the solvent, drip it into the cuvette, then place the cuvette in the sample chamber 16, operate the control component 2 and the adjustment lever 6, and detect the components of tea polyphenols;

[0047] Step 5: After the detection is completed, the colorimetric dish and the grinding box 20 are rinsed with distilled water, and then wiped dry with a paper towel.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting tea polyphenols in jasmine tea, comprising a spectrophotometer host (1), characterized in that: The lower end of the spectrophotometer mainframe (1) is fixedly connected to a bottom supporting bin (7), and the two sides of the bottom supporting bin (7) are slidably connected to a crushing bin (12) and a material storage bin (9), respectively. The middle of the lower end of the crushing bin (12) is fixedly connected to a bottom frame (32), and a motor slot (35) is provided in the middle of the bottom frame (32). A driving motor (28) is fixedly connected to the inside of the motor slot (35), and an inner supporting plate (27) is provided above the driving motor (28). The middle of the inner supporting plate (27) is penetrated by a mounting hole. The output end of the driving motor (28) is plugged into the assembly slot (37), a grinding box (20) is arranged above the inner support plate (27), a crushing tool holder (24) is rotatably connected to the middle of the grinding box (20), the lower end of the crushing tool holder (24) is plugged into the assembly slot (37), an inner slot (23) is provided at the upper end of the grinding box (20), a material pressing frame (22) is plugged into the inner portion of the inner slot (23), and a No. 2 filter cloth (21) is fixedly connected to the inner side of the material pressing frame (22).

2. The tea polyphenols component detection device of jasmine tea according to claim 1, characterized in that: The outer surface of the inner support plate (27) is fixedly connected with a blade (36), the lower ends of both sides of the crushing bin (12) are provided with a No. 2 side through groove (13), the middle lower part of both sides of the bottom support bin (7) is provided with a No. 1 side through groove (8), the No. 1 side through groove (8) is connected with the No. 2 side through groove (13), and an air inlet is provided on one side of the spectrophotometer mainframe (1), the interior of the air inlet is fixedly connected with an air inlet frame (14), and the interior of the air inlet frame (14) is fixedly connected with a No. 1 filter cloth (15).

3. The tea polyphenols component detection device of jasmine tea according to claim 1, characterized in that: An inner limit ring (34) and an outer limit ring (33) are arranged on the outer side of the motor slot (35); the upper surfaces of the inner limit ring (34) and the outer limit ring (33) are higher than the upper surface of the base frame (32); and a thrust bearing (29) is arranged between the outer limit ring (33) and the inner limit ring (34).

4. The tea polyphenols component detection device of jasmine tea according to claim 1, characterized in that: An outer ring groove (38) is provided at the outer edge of the lower end of the inner support disk (27), the upper end surface of the outer ring groove (38) is in contact with the upper end surface of the thrust bearing (29), and the upper surface of the drive motor (28) does not contact the inner support disk (27).

5. The tea polyphenols component detection device of jasmine tea according to claim 1, characterized in that: A connecting block (30) is fixedly connected inside the crushing bin (12), and one end of the connecting block (30) is fixedly connected to an inner clamping frame (31).

6. The tea polyphenols component detection device of jasmine tea according to claim 1, characterized in that: The four corners of the grinding box (20) are all provided with side slots (25), one side of the side slot (25) is provided with a side extension slot (26), the side extension slot (26) is slidably connected to the connecting block (30), and the inner card frame (31) is card-engaged with the side slot (25).

7. The tea polyphenols component detection device of jasmine tea according to claim 1, characterized in that: The inner card frame (31) is of hollow design. A cover (18) is provided at the upper end of the grinding box (20). The four corners of the lower end of the cover (18) are engaged with the side card slots (25). Through holes are provided at the four corners, and the through holes are connected with the side card slots (25).

8. The tea polyphenols component detection device of jasmine tea according to claim 1, characterized in that: A stacking box (17) is provided on one side of the storage bin (9), a clamping rod (39) is provided in the middle of both sides of the stacking box (17), and a sliding groove (40) is provided on both sides of the storage bin (9), and the sliding groove (40) is clamped with the clamping rod (39).

9. The tea polyphenols component detection device of jasmine tea according to claim 1, characterized in that: The bottom support bin (7) is provided with an assembly groove (19) inside, and threaded holes are provided at the middle and lower parts of both sides of the assembly groove (19). The crushing bin (12) and the storage bin (9) are provided with a No. 2 filter cloth (21) at the middle and lower parts, and a fastening rod (10) is rotatably connected inside the No. 2 filter cloth (21), and one end of the fastening rod (10) is threadedly connected to the threaded hole, and the other end of the fastening rod (10) is rotatably connected to a rotating shaft. A paddle (11), a sample chamber (16) is arranged on one side of the interior of the spectrophotometer mainframe (1), a sample chamber flip cover (3) is rotatably connected to the interior of the sample chamber (16), a protective gasket (4) is fixedly connected to the middle of one side of the sample chamber flip cover (3), an inner groove (5) is opened on one side of the spectrophotometer mainframe (1), a positioning pull rod (6) is arranged inside the inner groove (5), and a control component (2) is fixedly installed on one side of the upper end of the spectrophotometer mainframe (1).

10. A method for detecting tea polyphenols in jasmine tea, characterized in that: A tea polyphenol component detection device for jasmine tea according to any one of claims 1 to 9, comprising the following steps: S1. Buckle and rotate the rotating paddle (11) to disconnect the fastening rod (10) from the threaded hole, so as to extract the crushing bin (12) and the storage bin (9), take out the items required for testing stored in the storage bin (9) and the stacking box (17), and then take out the grinding box (20); S2, put the jasmine tea into the grinding box (20), connect the pressing frame (22) with the inner slot (23), then install the cover (18) with the grinding box (20), then install the crushing tool holder (24) with the assembly slot (37), push the crushing bin (12) into the bottom support bin (7), rotate the rotating paddle (11), and connect the fastening rod (10) with the threaded hole; S3, control the drive motor (28) to start, the crushing knife holder (24) crushes the jasmine tea, then the grinding box (20) is taken out, the solvent is dripped into it, and then the crushing bin (12) is placed in the bottom support bin (7), and the drive motor (28) is turned on to mix the solvent with the jasmine tea to precipitate tea polyphenols; S4, taking out the grinding box (20), pushing the crushing chamber (12) into the bottom support chamber (7), using a pipette to suck out the solvent, dripping it into the cuvette, and then placing the cuvette in the sample chamber (16), operating the control component (2) and the adjustment lever (6), and detecting the components of the tea polyphenols; S5. After the detection is completed, the colorimetric dish and the grinding box (20) are rinsed with distilled water, and then wiped dry with a paper towel.

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