Device and method for rapidly detecting metal content of white spirit

Abstract

The invention relates to the technical field of baijiu detection, and discloses a baijiu metal content rapid detection device and method.The top of a workbench is provided with a collection shell and a detection box, the area where the detection box is located is a detection area, the area where the collection shell is located is a cleaning area, and the outer wall of a side plate is provided with a swing rod; a second rotating plate is fixedly mounted at one end of the swing rod, and three sliding rods penetrate through the top of the second rotating plate and are slidably mounted at the top of the second rotating plate. The electrodes are switched between the cleaning area and the detection area through switching, polishing of the working electrode is completed in the cleaning area, and the three electrodes can be immersed in a white spirit solution for detection when the electrodes move to the detection area; the working electrode is polished and ground, so that an oxide layer, oil stains and other impurities on the surface of the electrode can be effectively removed, the surface cleanness of the electrode is ensured, and the conductivity of the electrode is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquor detection, and in particular to a device and method for quickly detecting the metal content in liquor. Background Art

[0002] Baijiu occupies a crucial place in Chinese culture and daily life, with profound historical background and social significance. Whether it's the Spring Festival, weddings, birthdays, or other festive occasions, baijiu is an integral part of celebrations. Gathering with friends and family, drinking baijiu symbolizes reunion and celebration.

[0003] Therefore, testing the composition of baijiu (white spirits) is valuable. For example, lead and manganese levels are crucial, as these metals pose potential health risks. Lead is a heavy metal, and excessive intake can affect the nervous, hematopoietic, and immune systems. Lead in baijiu typically originates from lead dissolution from the stills and storage containers. Manganese is an essential trace element for normal human metabolism, but excessive levels can also have adverse health effects. During the baijiu brewing process, manganese can be introduced through mold, deterioration, or bacterial contamination of raw materials.

[0004] In the existing technology, square wave stripping voltammetry is often used to detect the lead and manganese content in white wine. In this method, an LK98 microcomputer electrochemical analyzer and a three-electrode system (the working electrode is a glassy carbon electrode or a gold electrode, the reference electrode is an Ag / AgCl electrode, and the auxiliary electrode is a platinum electrode) are required. Specifically, the three electrodes are placed in the adjusted white wine solution, and the peak current and peak potential are used for quantitative and qualitative analysis. Standard curves for lead and manganese are drawn to obtain the regression equation and correlation coefficient.

[0005] However, the electrode surface may form an oxide layer or be covered with other impurities due to oxidation, which may affect the accuracy of the test results when the electrode is inserted into the liquor for testing. Therefore, in order to improve the accuracy of the test, this case focuses on solving the problem of pre-treatment of the working electrode. Summary of the Invention

[0006] The purpose of the present invention is to provide a device and method for rapid detection of metal content in liquor, so as to solve at least one technical problem existing in the above-mentioned prior art.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for rapid detection of metal content in liquor, comprising a side panel fixed to the top of a workbench, a collection shell and a detection box installed on the top of the workbench, wherein the area where the detection box is located is the detection area, and the area where the collection shell is located is the cleaning area, a swinging rod is installed on the outer wall of the side panel, a second rotating plate is fixedly installed on one end of the swinging rod, three sliding rods are slidably installed through the top of the second rotating plate, and the outer walls of the three sliding rods are respectively inlaid with electrodes connected to an external LK98 microcomputer electrochemical analyzer, and the three electrodes are respectively an auxiliary electrode, a working electrode, and a reference electrode; The outer wall of the swing rod is fixedly connected to an air bag that can expand and contract. When the air bag expands, it can contact the outer wall of the working electrode, and the outer wall of the air bag is provided with a polishing layer; The invention also comprises a switching assembly, which can enable the swing arm to move back and forth between the cleaning area and the detection area.

[0008] Preferably, the outer wall of the side panel is installed with a rotatable mounting plate, the outer wall of the mounting plate is rotatably installed with a first rotating plate, the outer wall of the first rotating plate is penetrated and slidably installed with three control rods, and the three control rods are rotatably connected to the three sliding rods respectively.

[0009] Preferably, the switching assembly includes a second telescopic rod rotatably mounted on the outer wall of the side plate, a second connecting rod is rotatably mounted on the outer wall of the rod head of the second telescopic rod, the swing rod is rotatably mounted on the top of the second connecting rod, the first connecting rod is also rotatably mounted on the outer wall of the side plate, and the first connecting rod is coaxially fixedly arranged with the mounting plate, the first telescopic rod is rotatably mounted on the outer wall of one end of the first connecting rod away from the mounting plate, and the outer wall of the rod head of the first telescopic rod is rotatably connected to the second connecting rod; The switching assembly further includes sprockets which are coaxially fixedly mounted with the second telescopic rod and the first connecting rod respectively, and the two sprockets are connected via a chain transmission.

[0010] Preferably, the first telescopic rod and the second connecting rod are rotatably connected by a connecting rod, and the first telescopic rod and the connecting rod are fixedly connected, a cavity is provided inside the second connecting rod, the connecting rod passes through the inside of the second connecting rod, and the part of the connecting rod extending into the inside of the second connecting rod is provided with a thread, a sliding plate is slidably installed on the inner wall of the second connecting rod, the connecting rod passes through the outer wall of the sliding plate and is threadedly connected to the penetration, and a connecting pipe is provided inside the swing rod to connect the airbag and the internal cavity of the second connecting rod.

[0011] Preferably, the second telescopic rod consists of a moving rod and a sleeve, the moving rod is slidably mounted on the inner wall of the sleeve, and a winding rope is fixedly mounted on one end of the moving rod in the sleeve, a winding wheel is fixedly mounted on the outer wall of the side panel, and the end of the winding rope away from the moving rod is fixedly connected to the outer wall of the winding wheel.

[0012] Preferably, an activation shell is slidably installed on the outer wall of the sliding rod where the working electrode is located, and the activation shell contains activation liquid. The activation shell is fixedly connected to the bottom of the second rotating plate, and the connection between the activation shell and the sliding rod is made of rubber material, and a cleaning cotton is fixedly installed on the bottom of the activation shell.

[0013] Preferably, a limiting cap is provided at one end of the control rod away from the sliding rod.

[0014] Preferably, when the swing rod is in the cleaning area, the sliding plate blocks the connecting pipe.

[0015] Preferably, the outer wall of the detection box is provided with a notch for the sliding rod to pass through.

[0016] A method for rapidly detecting the metal content of liquor, comprising a device for rapidly detecting the metal content of liquor, and further comprising the following steps: The first step is to put the liquor to be tested into the testing box and add appropriate amounts of nitric acid and sulfuric acid to adjust the pH to acidic; In the second step, the second telescopic rod is rotated by an external driving source, and the swing rod and the second rotating plate are driven to move above the cleaning area under the cooperation of the second connecting rod and the first connecting rod, so that the angle between the control rod and the sliding rod is obtuse. In this process, the cooperation between the connecting rod and the sliding plate will inflate the interior of the airbag, so that the outer wall of the airbag contacts the outer wall of the working electrode; In the third step, the first rotating plate is rotated by an external driving source, thereby driving the second rotating plate to rotate via the control rod. When the first rotating plate and the second rotating plate rotate synchronously, the sliding rod and the control rod slide back and forth on the outer walls of the second rotating plate and the first rotating plate respectively, thereby causing the working electrode to rub back and forth on the outer wall of the airbag to polish the surface of the airbag; The fourth step is to rotate the second telescopic rod through an external driving source so that the angle between the control rod and the second rotating plate is a right angle. Therefore, when the first rotating plate and the second rotating plate rotate synchronously, the reciprocating sliding distance of the sliding rod increases, thereby allowing the working electrode to enter the activation shell for activation treatment, and the outer wall of the working electrode is cleaned under the action of the cleaning cotton, so that polished debris can fall into the collection shell. When the angle between the control rod and the second rotating plate changes from an obtuse angle to a right angle, the sliding plate moves away from the connecting pipe, thereby causing the airbag to shrink and separate from the working electrode. In the fifth step, the second telescopic rod is rotated again through an external driving source, so that the sliding rod and the control rod are in a straight line, and the three electrodes enter the white wine solution in the detection box for detection. In this process, the second telescopic rod is contracted by the cooperation of the winding rope and the winding wheel to prevent the second telescopic rod from interfering with the detection box during rotation.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention switches the electrodes between the cleaning area and the detection area, completes the polishing of the working electrode in the cleaning area, and enables the three electrodes to be immersed in the white wine solution for detection when moving to the detection area; polishing and grinding the working electrode can effectively remove the oxide layer, oil stains and other impurities on the electrode surface, ensure the cleanliness of the electrode surface, thereby improving the conductivity of the electrode, and grinding can make the electrode surface rougher, increase the effective surface area, and help improve the efficiency and sensitivity of the electrochemical reaction. Efficient electrochemical reaction can significantly shorten the reaction time and improve the efficiency of the experimental and production processes, which is particularly important for application scenarios that require rapid response, such as real-time analysis and monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention; Figure 2 This is a partial front view of the present invention; Figure 3 For the present invention Figure 2 Partial cross-sectional view at AA in the middle; Figure 4 It is a left side view of the present invention; Figure 5 For the present invention Figure 4 Cross-sectional view at BB in the figure; Figure 6 Schematic cross-sectional view of the winding rope and the winding wheel in the present invention; Figure 7 Schematic diagram of the rotation of the first connecting rod, the first telescopic rod and the second telescopic rod in the present invention.

[0019] In the figure: 1. workbench; 2. side panel; 3. detection box; 4. mounting plate; 5. first rotating plate; 6. second rotating plate; 7. control rod; 8. sliding rod; 9. auxiliary electrode; 10. working electrode; 11. reference electrode; 12. collecting shell; 13. first connecting rod; 14. first telescopic rod; 15. second connecting rod; 16. second telescopic rod; 17. sprocket; 18. chain; 19. winding wheel; 20. winding rope; 21. moving rod; 22. connecting rod; 23. activation shell; 24. air bag; 25. sliding plate; 26. connecting pipe; 27. swing rod; 28. sleeve; 29. ​​cleaning cotton; 30. limit cap. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 7 The present invention provides a technical solution: a rapid detection device for the metal content of liquor, comprising a side plate 2 fixed to the top of a workbench 1, a collection shell 12 and a detection box 3 installed on the top of the workbench 1, wherein the area where the detection box 3 is located is the detection area, and the area where the collection shell 12 is located is the cleaning area, a swing rod 27 is installed on the outer wall of the side plate 2, a second rotating plate 6 is fixedly installed on one end of the swing rod 27, three sliding rods 8 are penetrated and slidably installed on the top of the second rotating plate 6, and the outer walls of the three sliding rods 8 are respectively inlaid with electrodes connected to an external LK98 microcomputer electrochemical analyzer, and the three electrodes are respectively an auxiliary electrode 9, a working electrode 10 and a reference electrode 11; The outer wall of the swing rod 27 is fixedly connected to an air bag 24 that can expand and contract. When the air bag 24 expands, it can contact the outer wall of the working electrode 10, and the outer wall of the air bag 24 is provided with a polishing layer. The device further comprises a switching assembly, which enables the swing rod 27 to move back and forth between the cleaning area and the detection area.

[0022] See Figure 1 as well as Figure 2 When it is necessary to test the liquor sample, the staff first puts the liquor sample into the test box 3, and adds nitric acid and sulfuric acid thereto to adjust the pH to acidic; the swing arm 27 and the second rotating plate 6 are adjusted to the cleaning area by the switching component, and the air bag 24 is expanded by the external air intake component during this process, so that the outer wall of the polishing cloth material of the air bag 24 is in contact with the working electrode 10, and then the sliding rod 8 is moved back and forth up and down by the external driving component, and rotates during this process, so that the outer wall of the working electrode 10 is continuously rubbed against the outer wall of the air bag 24 to complete the purpose of polishing the outer wall of the working electrode 10. The polishing debris will fall into the collection shell 12 below, which is convenient for the staff to collect and clean.

[0023] After polishing is completed, the swing rod 27 and the second rotating plate 6 are moved to the detection area through the switching component, and the three electrodes are immersed in the white wine solution in the detection box 3. The working software is set to perform square wave scanning from negative potential to positive potential, and the current-potential curve during the dissolution process is recorded. Then, the peak current and peak potential are used for quantitative and qualitative analysis, and the standard curves of lead and manganese are drawn. The regression equation and correlation coefficient are obtained to determine the lead and manganese content in the white wine solution to prevent harm to the human body when drinking.

[0024] By switching, the electrode is switched between the cleaning area and the detection area. The working electrode 10 is polished in the cleaning area, and when moved to the detection area, the three electrodes can be immersed in the white wine solution for detection; polishing the working electrode 10 can effectively remove the oxide layer, oil stains and other impurities on the electrode surface, ensure the cleanliness of the electrode surface, thereby improving the conductivity of the electrode, and polishing can make the electrode surface rougher, increase the effective surface area, and help improve the efficiency and sensitivity of the electrochemical reaction. Efficient electrochemical reactions can significantly shorten the reaction time and improve the efficiency of experiments and production processes. This is especially important for application scenarios that require rapid response, such as real-time analysis and monitoring.

[0025] Furthermore, a rotatable mounting plate 4 is installed on the outer wall of the side panel 2, and a first rotating plate 5 is rotatably installed on the outer wall of the mounting plate 4. Three control rods 7 are penetrated and slidably installed on the outer wall of the first rotating plate 5, and the three control rods 7 are rotatably connected to the three sliding rods 8 respectively.

[0026] See Figure 2 When the working electrode 10 is to be polished, the swing rod 27 and the second rotating plate 6 and other components are first moved above the cleaning area through the switching component, so that the airbag 24 expands and contacts the working electrode 10, and the first rotating plate 5 is driven to rotate by the motor fixed to the outer wall of the mounting plate 4. When the first rotating plate 5 rotates, with the cooperation of the control rod 7, the sliding rod 8 and the second rotating plate 6, the second rotating plate 6 will continue to rotate, and the sliding rod 8 will continue to move back and forth vertically up and down, so that the working electrode 10 rotates around the axis of the second rotating plate 6 while moving vertically up and down, and in this process, the sliding rod 8 will also rotate relative to the second rotating plate 6, so that the surface of the working electrode 10 can not only be displaced in the vertical direction relative to the airbag 24, but also can produce rotational friction relative to the airbag 24, so that the working electrode 10 can continue to rub evenly on the polishing cloth on the outer wall of the airbag 24, so as to achieve the purpose of polishing the working electrode 10.

[0027] After polishing the working electrode 10, the swing rod 27 and the second rotating plate 6 and other components are moved to the monitoring area through the switching component. With the cooperation of the control rod 7 and the sliding rod 8, the two are in a vertical state at the same time, so that the three electrodes are immersed in the white wine to achieve the purpose of detecting the white wine. While the switching component moves the swing rod 27 and other components, the airbag 24 contracts inward to prevent debris from falling into the white wine and interfering with the detection.

[0028] It's worth noting that once the three electrodes are immersed in the liquor, the motor on the outer wall of mounting plate 4 can be activated again to rotate first rotating plate 5, thereby causing the three sliding rods 8 to stir the liquor sample. This stirring evenly distributes the components in the sample, avoiding uneven concentrations or stratification within the sample. This is crucial for ensuring the accuracy and consistency of analytical results.

[0029] Furthermore, the switching assembly includes a second telescopic rod 16 mounted on the outer wall of the side panel 2 and capable of rotation, the outer wall of the rod head of the second telescopic rod 16 is rotatably mounted with a second connecting rod 15, the swing rod 27 is rotatably mounted on the top of the second connecting rod 15, the outer wall of the side panel 2 is also rotatably mounted with a first connecting rod 13, and the first connecting rod 13 is coaxially fixedly arranged with the mounting plate 4, the outer wall of the end of the first connecting rod 13 away from the mounting plate 4 is rotatably mounted with a first telescopic rod 14, and the outer wall of the rod head of the first telescopic rod 14 is rotatably connected to the second connecting rod 15; The switching assembly further includes a sprocket 17 coaxially fixedly mounted with the second telescopic rod 16 and the first connecting rod 13 , and the two sprockets 17 are connected in transmission via a chain 18 .

[0030] See Figure 5 At this time, the swing rod 27 and other components are in the cleaning area. When it is necessary to move the swing rod 27 to the detection area, the motor fixed to the back of the side plate 2 drives the second telescopic rod 16 to rotate, thereby driving the second connecting rod 15, the first telescopic rod 14 and the first connecting rod 13 to move downward at the same time, thereby driving the swing rod 27 to move in the direction close to the detection area, and then driving the angle component between the control rod 7 and the sliding rod 8 to increase until they are in a vertical state at the same time, and the sliding rod 8 will gradually move downward, so that the electrode is immersed in the white wine inside the detection box 3. For details, please refer to Figure 7 , where the three-point dashed line a is the moving trajectory of the first connecting rod 13 , and the three-point dashed line b is the moving trajectory of the second telescopic rod 16 .

[0031] It is worth noting that by adding two sprockets 17 and chains 18, the transmission between the sprockets 17 and the chain 18 has a higher transmission efficiency, which can reduce energy loss and improve the overall efficiency of the system. In addition, the sprocket 17 and chain 18 system can withstand and transmit a larger torque, which can make the device more stable when in use.

[0032] Furthermore, the first telescopic rod 14 and the second connecting rod 15 are rotatably connected by a connecting rod 22, and the first telescopic rod 14 and the connecting rod 22 are fixedly connected. A cavity is provided inside the second connecting rod 15, and the connecting rod 22 passes through the interior of the second connecting rod 15. The part of the connecting rod 22 extending into the interior of the second connecting rod 15 is provided with a thread. A sliding plate 25 is slidably installed on the inner wall of the second connecting rod 15, and the connecting rod 22 passes through the outer wall of the sliding plate 25 and is threadedly connected to the penetration. A connecting pipe 26 is provided inside the swing rod 27 to connect the airbag 24 to the internal cavity of the second connecting rod 15.

[0033] See Figure 3 When the working electrode 10 needs to be polished, the second telescopic rod 16 is driven to rotate by the motor on the back of the side plate 2, so that the swing rod 27 and other components enter the cleaning area. During this process, the second telescopic rod 16 will drive the connecting rod 22 and the second connecting rod 15 to rotate relative to each other. Under the threaded cooperation between the connecting rod 22 and the sliding plate 25, the sliding plate 25 moves toward the direction close to the connecting pipe 26, thereby inflating the airbag 24, and then the polishing cloth on the outer wall of the airbag 24 is fitted with the surface of the working electrode 10, so as to facilitate polishing and grinding it.

[0034] When the working electrode 10 is polished, the relative rotation direction of the connecting rod 22 and the second connecting rod 15 will change when the electrode needs to be immersed in the white wine sample, thereby changing the rotation direction of the sliding plate 25 and the connecting rod 22, and then moving the sliding plate 25 away from the connecting pipe 26, and the air in the airbag 24 is re-drawn into the inside of the second connecting rod 15, so that the airbag 24 is separated from the working electrode 10, preventing the debris generated by polishing from falling into the white wine sample during the subsequent detection process.

[0035] Furthermore, the second telescopic rod 16 is composed of a moving rod 21 and a sleeve 28. The moving rod 21 is slidably installed on the inner wall of the sleeve 28, and a winding rope 20 is fixedly installed on one end of the moving rod 21 in the sleeve 28. A winding wheel 19 is fixedly installed on the outer wall of the side panel 2, and the end of the winding rope 20 away from the moving rod 21 is fixedly connected to the outer wall of the winding wheel 19.

[0036] See Figure 5 as well as Figure 6 As can be seen from the above, when the electrode needs to be immersed in the liquor sample solution, it is achieved by rotating the second telescopic rod 16. However, when the second telescopic rod 16 rotates downward, it may contact the outer shell of the detection box 3, resulting in interference. This embodiment focuses on solving this problem. The specific implementation method is as follows: When the electrode needs to be immersed in the white wine solution, the second telescopic rod 16 is rotated downward by the motor on the back of the side panel 2. During the downward rotation of the second telescopic rod 16, the winding rope 20 will gradually wrap around the outer wall of the winding wheel 19, thereby driving the moving rod 21 to gradually retract into the sleeve 28, so that the second telescopic rod 16 is shortened as a whole to prevent interference during the switching process.

[0037] Furthermore, an activation shell 23 is slidably installed on the outer wall of the sliding rod 8 where the working electrode 10 is located. The activation shell 23 contains activation liquid. The activation shell 23 is fixedly connected to the bottom of the second rotating plate 6, and the connection between the activation shell 23 and the sliding rod 8 is set to rubber material. A cleaning cotton 29 is fixedly installed on the bottom of the activation shell 23.

[0038] Furthermore, when the swing rod 27 is in the cleaning area, the sliding plate 25 blocks the communicating pipe 26 .

[0039] Before the working electrode 10 is immersed in the liquor sample solution, it can be electrochemically activated. The activated electrode surface has higher catalytic activity, which can reduce the overpotential of the electrode reaction and make the electrochemical reaction more likely to occur, thereby increasing the accuracy of the detection results.

[0040] See Figure 1 as well as Figure 2 On the basis of the above embodiment, an activation area is added. It can be seen from the above that when the control rod 7 and the sliding rod 8 are located in the detection area, the angle between the two is the largest, and the three electrodes are immersed in the white wine solution for detection. When in the cleaning area, the angle is relatively small. In this embodiment, the area where the angle between the control rod 7 and the sliding rod 8 is 135 degrees is the cleaning area, and the area where the control rod 7 and the sliding rod 8 are perpendicular is the activation area.

[0041] In the initial stage, the control rod 7 and the sliding rod 8 are in the cleaning area. At this time, the first rotating plate 5 is driven to rotate by the motor on the outer wall of the mounting plate 4, and the airbag 24 cooperates to complete the polishing of the working electrode 10. When the polishing is completed, the second telescopic rod 16 is driven to rotate by the motor on the back of the side plate 2, so that the control rod 7 and the sliding rod 8 are perpendicular and move to the activation area. At this time, since the angle between the control rod 7 and the second rotating plate 6 becomes smaller, while the first rotating plate 5 continues to rotate, the distance that the sliding rod 8 moves up and down will increase, so that the working electrode 10 enters the activation shell 23, and the electrode is activated by cyclic voltammetry, thereby enhancing the electrochemical properties of the electrode and making the detection results more accurate.

[0042] In addition, it is worth mentioning that while the sliding rod 8 is continuously moving vertically, the cleaning cotton 29 can clean the debris on the surface of the working electrode 10 to prevent it from bringing the debris into the white wine solution and affecting the detection results.

[0043] Among them, it is worth noting that Figure 3 For example, when the swing rod 27 and other components are in the clean area, the sliding plate 25 just blocks the connecting pipe 26. Therefore, only at this time, the airbag 24 expands and contacts the working electrode 10, preventing new debris from being generated during detection and activation.

[0044] Furthermore, a limiting cap 30 is provided at one end of the control rod 7 away from the sliding rod 8 .

[0045] See Figure 1 As can be seen from the above, after the polishing of the working electrode 10 is completed, the motor on the back of the side plate 2 can drive the control rod 7 and the sliding rod 8 to be in a vertical state at the same time, so that the three electrodes are immersed in the white wine sample at the same time. By setting the limit cap 30, the control rod 7 can be prevented from being separated from the first rotating plate 5 in the vertical state, thereby increasing the feasibility of the device.

[0046] Furthermore, a notch is provided on the outer wall of the detection box 3 for the sliding rod 8 to pass through.

[0047] See Figure 1 In order to prevent the sliding rod 8 from contacting the outer wall of the detection box 3 and causing interference when moving, a gap is opened on the outer wall of the detection box 3 to facilitate the stable operation of the entire device.

[0048] A method for rapidly detecting the metal content of liquor, comprising a device for rapidly detecting the metal content of liquor, and further comprising the following steps: Step 1: Place the liquor to be tested into the testing box 3, and add appropriate amounts of nitric acid and sulfuric acid to adjust the pH to acidic; Step 2: The second telescopic rod 16 is rotated by an external driving source, and the swing rod 27 and the second rotating plate 6 are driven to move above the cleaning area under the cooperation of the second connecting rod 15 and the first connecting rod 13, so that the angle between the control rod 7 and the sliding rod 8 becomes an obtuse angle. In this process, the cooperation between the connecting rod 22 and the sliding plate 25 will inflate the interior of the airbag 24, so that the outer wall of the airbag 24 contacts the outer wall of the working electrode 10; In the third step, the first rotating plate 5 is rotated by an external driving source, thereby driving the second rotating plate 6 to rotate via the control rod 7. When the first rotating plate 5 and the second rotating plate 6 rotate synchronously, the sliding rod 8 and the control rod 7 slide back and forth on the outer walls of the second rotating plate 6 and the first rotating plate 5, respectively, so that the working electrode 10 rubs back and forth on the outer wall of the airbag 24 to polish the surface of the airbag 24. In the fourth step, the second telescopic rod 16 is rotated by an external driving source so that the angle between the control rod 7 and the second rotating plate 6 is a right angle. Therefore, when the first rotating plate 5 and the second rotating plate 6 rotate synchronously, the reciprocating sliding distance of the sliding rod 8 increases, thereby allowing the working electrode 10 to enter the activation shell 23 for activation treatment. The outer wall of the working electrode 10 is cleaned under the action of the cleaning cotton 29, so that the polished debris can fall into the collection shell 12. When the angle between the control rod 7 and the second rotating plate 6 changes from an obtuse angle to a right angle, the sliding plate 25 moves away from the connecting pipe 26, thereby causing the air bag 24 to shrink and separate from the working electrode 10. In the fifth step, the second telescopic rod 16 is rotated again by an external driving source, so that the sliding rod 8 and the control rod 7 are in a straight line, and the three electrodes enter the white wine solution in the detection box 3 to detect it. In this process, the second telescopic rod 16 is contracted by the cooperation of the winding rope 20 and the winding wheel 19 to prevent the second telescopic rod 16 from interfering with the detection box 3 during rotation.

[0049] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0050] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for rapid detection of metal content in liquor, comprising a side plate (2) fixed to the top of a workbench (1), characterized in that: The workbench (1) is provided with a collection shell (12) and a detection box (3) on the top, and the area where the detection box (3) is located is a detection area, and the area where the collection shell (12) is located is a cleaning area. The outer wall of the side plate (2) is provided with a swinging rod (27), and a second rotating plate (6) is fixedly installed on one end of the swinging rod (27). Three sliding rods (8) are passed through and slidably installed on the top of the second rotating plate (6). The outer walls of the three sliding rods (8) are respectively inlaid with electrodes connected to an external LK98 microcomputer electrochemical analyzer, and the three electrodes are respectively an auxiliary electrode (9), a working electrode (10) and a reference electrode (11); The outer wall of the swing rod (27) is fixedly connected to an air bag (24) capable of expansion and contraction, and when the air bag (24) expands, it can contact the outer wall of the working electrode (10), and the outer wall of the air bag (24) is provided with a polishing layer; It also includes a switching component, which can enable the swing rod (27) to move back and forth between the cleaning area and the detection area.

2. The rapid detection device for metal content in liquor according to claim 1, characterized in that: The outer wall of the side plate (2) is mounted with a rotatable mounting plate (4), the outer wall of the mounting plate (4) is rotatably mounted with a first rotating plate (5), the outer wall of the first rotating plate (5) is penetrated by and slidably mounted with three control rods (7), and the three control rods (7) are rotatably connected to the three sliding rods (8) respectively.

3. The rapid detection device for metal content in liquor according to claim 2, characterized in that: The switching assembly includes a second telescopic rod (16) mounted on the outer wall of the side plate (2) and capable of rotation, a second connecting rod (15) being rotatably mounted on the outer wall of the rod head of the second telescopic rod (16), the swing rod (27) being rotatably mounted on the top of the second connecting rod (15), a first connecting rod (13) being rotatably mounted on the outer wall of the side plate (2), and the first connecting rod (13) being coaxially fixedly arranged with the mounting plate (4), a first telescopic rod (14) being rotatably mounted on the outer wall of one end of the first connecting rod (13) away from the mounting plate (4), and the outer wall of the rod head of the first telescopic rod (14) being rotatably connected to the second connecting rod (15); The switching assembly further comprises a sprocket (17) coaxially fixedly mounted with the second telescopic rod (16) and the first connecting rod (13), respectively, and the two sprockets (17) are connected in transmission via a chain (18).

4. The rapid detection device for metal content in liquor according to claim 3, characterized in that: The first telescopic rod (14) and the second connecting rod (15) are rotatably connected via a connecting rod (22), and the first telescopic rod (14) and the connecting rod (22) are fixedly connected. A cavity is provided inside the second connecting rod (15). The connecting rod (22) penetrates into the interior of the second connecting rod (15), and a portion of the connecting rod (22) extending into the interior of the second connecting rod (15) is provided with a thread. A sliding plate (25) is slidably mounted on the inner wall of the second connecting rod (15). The connecting rod (22) penetrates the outer wall of the sliding plate (25) and is threadedly connected to the penetration portion. A connecting pipe (26) is provided inside the swing rod (27) for connecting the airbag (24) and the inner cavity of the second connecting rod (15).

5. The rapid detection device for metal content in liquor according to claim 4, characterized in that: The second telescopic rod (16) is composed of a moving rod (21) and a sleeve (28), wherein the moving rod (21) is slidably mounted on the inner wall of the sleeve (28), and a winding rope (20) is fixedly mounted on one end of the moving rod (21) in the sleeve (28), and a winding wheel (19) is fixedly mounted on the outer wall of the side plate (2), and an end of the winding rope (20) away from the moving rod (21) is fixedly connected to the outer wall of the winding wheel (19).

6. The rapid detection device for metal content in liquor according to claim 5, characterized in that: An activation shell (23) is slidably mounted on the outer wall of the sliding rod (8) where the working electrode (10) is located. The activation shell (23) contains activation liquid. The activation shell (23) is fixedly connected to the bottom of the second rotating plate (6). The connection between the activation shell (23) and the sliding rod (8) is made of rubber material. A cleaning cotton (29) is fixedly mounted on the bottom of the activation shell (23).

7. The rapid detection device for metal content in liquor according to claim 2, characterized in that: A limiting cap (30) is provided at one end of the control rod (7) away from the sliding rod (8).

8. The rapid detection device for metal content in liquor according to claim 4, characterized in that: When the swing rod (27) is in the cleaning area, the sliding plate (25) blocks the communicating pipe (26).

9. The device for rapid detection of metal content in liquor according to any one of claims 1 to 8, characterized in that: The outer wall of the detection box (3) is provided with a notch through which the sliding rod (8) can pass.

10. A method for rapid detection of liquor ingredients, comprising the device for rapid detection of liquor metal content according to claim 6, characterized in that: The following steps are also included: The first step is to place the liquor to be tested into the test box (3), and add appropriate amounts of nitric acid and sulfuric acid to adjust the pH to acidic; In the second step, the second telescopic rod (16) is rotated by an external driving source, and the swing rod (27) and the second rotating plate (6) are driven to move to the top of the cleaning area under the cooperation of the second connecting rod (15) and the first connecting rod (13), so that the angle between the control rod (7) and the sliding rod (8) is obtuse, and in this process, the cooperation between the connecting rod (22) and the sliding plate (25) causes the inside of the airbag (24) to be inflated, so that the outer wall of the airbag (24) contacts the outer wall of the working electrode (10); In the third step, the first rotating plate (5) is rotated by an external driving source, thereby driving the second rotating plate (6) to rotate through the control rod (7). When the first rotating plate (5) and the second rotating plate (6) rotate synchronously, the sliding rod (8) and the control rod (7) slide back and forth on the outer walls of the second rotating plate (6) and the first rotating plate (5), respectively, so that the working electrode (10) rubs back and forth on the outer wall of the airbag (24) to polish the surface of the airbag (24); The fourth step is to rotate the second telescopic rod (16) through an external driving source so that the angle between the control rod (7) and the second rotating plate (6) is a right angle. Therefore, when the first rotating plate (5) and the second rotating plate (6) rotate synchronously, the reciprocating sliding distance of the sliding rod (8) will increase, so that the working electrode (10) can enter the activation shell (23) for activation treatment, and the outer wall of the working electrode (10) will be cleaned under the action of the cleaning cotton (29), so that the polished debris can fall into the collection shell (12), and when the angle between the control rod (7) and the second rotating plate (6) changes from an obtuse angle to a right angle, the sliding plate (25) will move in a direction away from the connecting pipe (26), so that the air bag (24) will shrink and separate from the working electrode (10); In the fifth step, the second telescopic rod (16) is rotated again by an external driving source, so that the sliding rod (8) and the control rod (7) are in a straight line, and the three electrodes enter the interior of the white wine solution in the detection box (3) for detection. In this process, the second telescopic rod (16) is contracted by the cooperation of the winding rope (20) and the winding wheel (19), so as to prevent the second telescopic rod (16) from interfering with the detection box (3) when rotating.

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