Liquid food detection device and detection method thereof
By designing a fully automated liquid food testing device, a closed-loop process from sampling to testing to waste disposal has been realized, solving the problems of cumbersome traditional testing processes and inconvenient sample pretreatment, improving testing efficiency and data accuracy, and reducing the risk of contamination.
Patent Information
- Application Number
- CN202511411894.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-01-23
AI Technical Summary
Traditional liquid food testing processes are cumbersome, have low automation, and are inconvenient for sample pretreatment, which can easily introduce errors and contamination, affecting the accuracy and reliability of test results.
A liquid food detection device was designed, comprising an installation support mechanism, a composite control mechanism, a sampling cylinder, a variable piston mechanism, and an end processing mechanism, realizing a fully automatic closed-loop process. The variable piston mechanism realizes sample aspiration and solid-liquid separation, the end processing mechanism is used for sealing and solid particle filtration, and multiple detection mechanisms are combined for automatic detection.
It improves the efficiency and continuity of liquid food testing, ensures the authenticity and stability of test data, reduces the risk of contamination and human intervention, and enhances the level of automation and the reliability of testing.
Smart Images
Figure CN121384533A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of liquid food detection, and particularly relates to a liquid food detection device and a detection method thereof. BACKGROUND
[0002] During the production, processing and circulation of liquid food such as milk, juice, beverage and wine, the key physicochemical indexes (such as pH value, sugar content, acidity, turbidity, ingredient content, etc.) need to be strictly monitored. The traditional liquid food detection process usually relies on manual operation, and there are a series of technical problems.
[0003] Firstly, the detection process is complicated, the automation degree is low, and the efficiency is low. In the prior art, the detection process is usually divided into multiple independent steps: the inspector first needs to manually use a pipette or a sampling spoon to collect samples from a large amount of raw materials, then transfer the samples to a beaker, a test tube or other containers, if the samples contain solid impurities such as fruit pulp and precipitate, additional pretreatment steps such as filtration or centrifugation are required, and after the pretreatment is completed, the samples are placed in various detection instruments (such as a pH meter, a chromatograph, etc.) for analysis. The whole process involves multiple sample transfers and multiple equipment operations, which not only consumes time and effort, but also relies heavily on manual operation, which limits the real-time quality monitoring capability of the production line. Secondly, the sample pretreatment is not convenient, and errors and pollution are easily introduced. Many liquid foods (such as juice) contain suspended solid particles, which can interfere with the accuracy of optical detection or block the precise analysis instrument. Therefore, solid-liquid separation must be performed before detection. However, the traditional separation method (such as using filter paper to filter) is complicated to operate, and during the transfer and filtration process, the samples are exposed to the air for a long time, which is easy to be contaminated by microorganisms or dust in the environment, and may also change the concentration of the samples due to solvent evaporation, thereby affecting the accuracy and reliability of the detection results. SUMMARY
[0004] The purpose of the present application is to provide a liquid food detection device and a detection method thereof to solve the problems raised in the background.
[0005] In order to achieve the above purpose, the present application provides the following technical scheme: a liquid food detection device and a detection method thereof, comprising a mounting and supporting mechanism and a plurality of detection mechanisms arranged on the top of the mounting and supporting mechanism, a composite control mechanism is rotatably installed in the interior of the mounting and supporting mechanism, a suction sampling cylinder is fixedly connected to the bottom of the composite control mechanism, a variable piston mechanism is movably sleeved in the interior of the suction sampling cylinder, an end processing mechanism is installed on the outer wall of the suction sampling cylinder, and a waste collecting mechanism is installed on the bottom of the mounting and supporting mechanism and located outside the suction sampling cylinder. The composite control mechanism is used for controlling the downward immersion of the suction sampling cylinder into the liquid food, and sucking the liquid food to be tested into the suction sampling cylinder through the variable piston mechanism, the end processing mechanism is used for sealing the bottom end of the suction sampling cylinder, the composite control mechanism makes the sample liquid stored in the suction sampling cylinder overturn upwards to the directly below the multi-item detection mechanism, the composite control mechanism drives the suction sampling cylinder to further deflect and direct the discharge of the liquid food after detection, and the variable piston mechanism cooperates with the end processing mechanism to further filter and separate the solid components in the liquid food.
[0006] Preferably, the mounting support mechanism comprises support plates, connecting frames and mounting plates, both ends of the connecting frame are fixedly connected with a support plate respectively, and the mounting plate is fixedly connected to the outer side of the connecting frame.
[0007] Preferably, the multi-item detection mechanism comprises a detection master console, an electric push rod one and a multi-item detection unit, the electric push rod one is fixedly installed at the top of the mounting plate, and the free end of the electric push rod one is fixedly connected with the detection master console, and the multi-item detection unit is arranged at the bottom of the detection master console.
[0008] Preferably, the composite control mechanism comprises a mounting frame, an electric push rod two, a connecting head, a rotating shaft, a gear one, a toothed plate and an electric push rod three, the mounting frame is arranged between the two support plates, the rotating shaft is fixedly installed on the outer side of the mounting frame and rotatably installed in the support plate through a bearing, the electric push rod two is fixedly installed in the mounting frame, and the free end of the electric push rod two is fixedly connected with the connecting head, the connecting head is fixedly connected to the top of the suction sampling cylinder, the gear one is fixedly sleeved on the outer surface of the rotating shaft, the electric push rod three is installed on the outer side of the support plate, and the free end of the electric push rod three is fixedly connected with the toothed plate.
[0009] Preferably, the suction sampling cylinder comprises a cylinder body, an electric push rod four, a baffle, fixed columns and a storage ring groove, the electric push rod four is fixedly installed in the cylinder body, the baffle is fixedly sleeved in the cylinder body, the fixed columns are arrayed on the baffle, the storage ring groove is opened at the bottom of the cylinder body, and the free end of the electric push rod four is movably passed through the baffle and fixedly connected with the variable piston mechanism.
[0010] Preferably, the variable piston mechanism comprises a connecting rod, an upper piston part and a lower piston part, the lower piston part is elastically nested at the bottom of the upper piston part, the upper piston part comprises a movable plug plate, a hole one, a mounting hole, a side plate, an electromagnet and an adaptive cavity, the lower piston part comprises a rotating disc, a hole two, a rotating rod one, a fixed ring one, a fixed ring two, a torsional spring and a magnetic attraction plate, one end of the connecting rod is fixedly connected with the movable plug plate, and the other end of the connecting rod is fixedly connected with the free end of the electric push rod four, the hole one is arranged on the movable plug plate, the hole two is arranged on the rotating disc, the hole two is located on the rotating path of the hole one, the adaptive cavity is arranged at the bottom of the movable plug plate, the rotating disc is rotatably sleeved in the adaptive cavity, the mounting hole is arranged in the middle of the movable plug plate, the side plate is symmetrically fixed on the inner wall of the mounting hole, the electromagnet is fixedly installed on the side plate, one end of the rotating rod one is fixedly connected with the top of the rotating disc, and the other end of the rotating rod one is located in the mounting hole, the fixed ring one is fixedly connected with the outer wall of the rotating rod one, the fixed ring two is fixedly sleeved in the mounting hole, the torsional spring is connected between the fixed ring one and the fixed ring two, and the magnetic attraction plate is symmetrically connected with the outer wall of the rotating rod one.
[0011] Preferably, the end processing mechanism comprises a rotating rod two, a support seat, a sealing plate and a driving motor, the support seat is fixedly connected with the outer wall of the barrel, the rotating rod two is rotatably sleeved in the support seat, the sealing plate is fixedly connected with the bottom of the rotating rod two, the bottom end of the barrel is located on the rotating path of the sealing plate, and the output shaft of the driving motor is fixedly connected with the rotating rod two.
[0012] Preferably, the bottom of the mounting frame is fixedly connected with an outer wall cleaning ring, and the outer wall cleaning ring is sleeved on the outer side of the suction sampling barrel.
[0013] Preferably, the waste collecting mechanism comprises a support frame, a storage box and a flow guide frame, the support frame is fixedly connected with the bottom of the connecting frame, the storage box is placed on the support frame, the inner wall of the support frame is fixedly connected with a positioning rod, the storage box is sleeved and positioned with the positioning rod through an end positioning hole, and the flow guide frame is fixedly connected with the top of the support frame.
[0014] The detection method of the liquid food detection device comprises the following detection steps: S1, sampling step: controlling the composite control mechanism to drive the suction sampling barrel to descend into the liquid food to be detected, and driving the variable piston mechanism to ascend, so that the liquid food is sucked into the suction sampling barrel, and then controlling the end processing mechanism to seal the bottom end of the suction sampling barrel; S2, transfer and positioning step: control the composite control mechanism to lift and overturn the suction sampling cylinder, so that the open end faces upwards and is located directly below the multi-detection mechanism; S3, detection step: drive the multi-detection mechanism to descend and detect the liquid food in the suction sampling cylinder; S4, waste treatment step: after detection, control the composite control mechanism to deflect the suction sampling cylinder above the waste collection mechanism, and open the end treatment mechanism to discharge the detected liquid food.
[0015] The beneficial effects of the present application are as follows: 1. The present application realizes integrated actions of down exploration, suction, overturning, positioning and pouring through the composite control mechanism driving the suction sampling cylinder, which eliminates manual sampling, sample transfer and multi-device cooperation, forms a full-automatic closed-loop process from sampling to detection to waste treatment, and significantly improves the efficiency and continuity of liquid food detection.
[0016] 2. The present application realizes free switching of two working modes of "piston suction" and "filtration separation" through the variable piston mechanism arranged in the suction sampling cylinder, hole alignment and misalignment driven by the electromagnet, which can complete sample suction and solid-liquid separation in the same container, avoids sample transfer to external filtration devices in traditional technology, reduces pollution risk and sample property change, and ensures the authenticity and stability of detection data.
[0017] 3. The present application adopts a rotary sealing method through the end treatment mechanism, which can realize bottom sealing to prevent leakage after sampling, and can push the intercepted solid particles out to the edge of the cylinder body and into the storage ring groove after overturning in cooperation with the variable piston mechanism, so that sampling, sealing, filtration and solid waste treatment are closely connected, manual intervention is reduced, and the automation level of the detection device is improved.
[0018] 4. The present application adds an outer wall cleaning ring outside the suction sampling cylinder, which can automatically scrape off the residual liquid on the outer wall during the lifting of the cylinder body, effectively avoids cross contamination between different batches of samples, ensures the sample independence during continuous detection, and improves the reliability and repeatability of detection. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a structural schematic view of the present application; Figure 2 is a partial sectional view of the present application; Figure 3 is a connection schematic view of the composite control mechanism and the suction sampling cylinder of the present application; Figure 4 is a schematic view of the multi-detection mechanism of the present application; Figure 5 is a schematic view of the end treatment mechanism of the present application; Figure 6 Figure 1 is a schematic view of the upper piston part of the present application; Figure 7 Figure 2 is a schematic view of the lower piston part of the present application; Figure 8 Figure 3 is a schematic view of the upper piston part of the present application; Figure 9 Figure 4 is a schematic view of the installation of the electromagnet of the present application; Figure 10 Figure 5 is a schematic view of the bottom piston part of the present application; Figure 11 Figure 6 is a schematic view of the waste collection mechanism of the present application.
[0020] In the figure: 1, installation support mechanism; 101, support plate; 102, connecting frame; 103, mounting plate; 2, multi-detection mechanism; 201, detection console; 202, electric push rod one; 203, multi-detection unit; 3, composite control mechanism; 301, mounting frame; 302, electric push rod two; 303, connecting head; 304, rotating shaft; 305, gear one; 306, toothed plate; 307, electric push rod three; 4, suction sampling cylinder; 401, cylinder body; 402, electric push rod four; 403, baffle; 404, fixed column; 405, storage ring groove; 5, connecting rod; 6, upper piston part; 601, movable plug plate; 602, hole one; 603, mounting hole; 604, side plate; 605, electromagnet; 606, matching cavity; 7, lower piston part; 701, rotating disc; 702, hole two; 703, rotating rod one; 704, fixed ring one; 705, fixed ring two; 706, torsional spring; 707, magnetic attraction plate; 8, end processing mechanism; 801, rotating rod two; 802, support seat; 803, sealing plate; 804, drive motor; 9, outer wall cleaning ring; 10, waste collection mechanism; 1001, support frame; 1002, storage box; 1003, flow guide frame. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0022] As Figures 1 to 11As shown, the embodiment of the present application provides a liquid food detection device and its detection method, which comprises a mounting support mechanism 1 and a plurality of detection mechanisms 2 arranged on the top of the mounting support mechanism 1, a composite control mechanism 3 is rotatably installed in the mounting support mechanism 1, a suction sampling cylinder 4 is fixedly connected to the bottom of the composite control mechanism 3, a variable piston mechanism is movably sleeved in the suction sampling cylinder 4, an end processing mechanism 8 is installed on the outer wall of the suction sampling cylinder 4, and a waste collecting mechanism 10 is installed on the bottom of the mounting support mechanism 1 and located outside the suction sampling cylinder 4; the composite control mechanism 3 is used for controlling the suction sampling cylinder 4 to be immersed into the liquid food, and the variable piston mechanism is used for sucking the liquid food to be detected into the suction sampling cylinder 4, the end processing mechanism 8 is used for sealing the bottom end of the suction sampling cylinder 4, the composite control mechanism 3 makes the sample liquid stored in the suction sampling cylinder 4 overturn upward to be directly below the plurality of detection mechanisms 2, the composite control mechanism 3 drives the suction sampling cylinder 4 to further deflect and direct the discharge of the liquid food after detection, and the variable piston mechanism cooperates with the end processing mechanism 8 and is also used for filtering and separating the solid components in the liquid food.
[0023] In the embodiment 1, the electric push rod two 302 in the composite control mechanism 3 is started to drive the whole suction sampling cylinder 4 to move downward in the vertical direction until the bottom end of the suction sampling cylinder 4 is immersed into the liquid food to be measured, and meanwhile the sealing plate 803 of the end processing mechanism 8 is in the rotated open position to keep the bottom opening of the suction sampling cylinder 4 unblocked; after the bottom end of the suction sampling cylinder 4 enters the liquid food, the electric push rod four 402 in the suction sampling cylinder 4 is started to drive the variable piston mechanism (consisting of the upper piston part 6 and the lower piston part 7) to move upward in the cylinder body 401, the upward movement of the piston forms a negative pressure in the lower part of the cylinder body to suck the liquid food sample into the cylinder body 401, and when the preset sampling amount is reached, the electric push rod four 402 is stopped, and then the driving motor 804 of the end processing mechanism 8 is started to drive the rotating rod two 801 and the sealing plate 803 to rotate to completely seal the bottom opening of the suction sampling cylinder 4 to prevent the sample from leaking in the subsequent movement; after the sample is extracted and sealed, the electric push rod two 302 in the composite control mechanism 3 is started in the reverse direction to lift the whole suction sampling cylinder 4 out of the liquid food, and in the lifting process, the outer wall cleaning ring 9 scrapes and cleans the residual liquid attached to the outer wall of the cylinder body, the electric push rod three 307 in the composite control mechanism 3 is started to drive the toothed plate 306 to move, the toothed plate 306 is engaged with the gear one 305 on the rotating shaft 304 to drive the whole mounting bracket 301 and the suction sampling cylinder 4 fixedly connected thereto to be turned over by 180 degrees to change the suction sampling cylinder 4 from the vertical downward state to the vertical upward state, at this time, the original bottom of the cylinder body (which has been sealed by the sealing plate 803) faces upward, and the sample is stably located in the cylinder body and directly below the multi-item detection mechanism 2; after the sample is transferred, the multi-item detection mechanism 2 is started, the electric push rod one 202 drives the detection general console 201 to descend so that the multi-item detection unit 203 (such as a pH electrode, a spectral probe, etc.) at the bottom of the detection general console 201 extends into the liquid to be measured in the suction sampling cylinder 4 to automatically detect various indexes, and after the data acquisition is completed, the electric push rod one 202 drives the detection general console 201 to reset; after the detection is completed, the electric push rod three 307 is started again to drive the toothed plate 306 to make the suction sampling cylinder 4 continue to be deflected to a preset pouring angle so that the open end of the suction sampling cylinder 4 is aligned with the flow guide frame 1003 of the waste collecting mechanism 10 below, and meanwhile the driving motor 804 controls the sealing plate 803 to be rotated open, and the waste liquid in the cylinder and the solid waste separated before are discharged into the storage box 1002 under the action of gravity, and after being emptied, the composite control mechanism 3 controls the suction sampling cylinder 4 to be rotated in the reverse direction to restore to the initial vertical downward state.
[0024] The mounting support mechanism 1 comprises a support plate 101, a connecting frame 102 and a mounting plate 103, the two ends of the connecting frame 102 are fixedly connected with one support plate 101 respectively, and the mounting plate 103 is fixedly connected to the outer side of the connecting frame 102.
[0025] The mounting support mechanism 1 is used to realize the mounting and fixing of the device and external equipment, specifically through the assembly and fixing of the mounting plate 103 and the external structure, the support plate 101 is used to mount to the composite control mechanism 3, and the connecting frame 102 is also used to connect and fix the waste collection mechanism 10.
[0026] The multi-detection mechanism 2 includes a detection master console 201, an electric push rod 202, and a multi-detection unit 203, the electric push rod 202 is fixedly installed at the top of the mounting plate 103, and the free end of the electric push rod 202 is fixedly connected with the detection master console 201, and the multi-detection unit 203 is arranged at the bottom of the detection master console 201.
[0027] The multi-detection mechanism 2 is used to detect the liquid food in the suction sampling cylinder 4 which is turned upward and opened, specifically, the multi-detection unit 203 includes existing pH measuring parts, liquid chromatographs, and viscosity detection parts, and other contact detection elements, and also includes a spectrophotometer, a turbidimeter, and a near-infrared spectrometer, and other non-contact detection parts, so as to realize the multi-detection of the liquid food.
[0028] The composite control mechanism 3 includes a mounting frame 301, an electric push rod 302, a connecting head 303, a rotating shaft 304, a gear 305, a toothed plate 306, and an electric push rod 307, the mounting frame 301 is arranged between the two support plates 101, the rotating shaft 304 is fixedly arranged outside the mounting frame 301 and rotatably arranged in the support plate 101 through a bearing, the electric push rod 302 is fixedly installed in the mounting frame 301, and the free end of the electric push rod 302 is fixedly connected with the connecting head 303, the connecting head 303 is fixedly connected at the top of the suction sampling cylinder 4, the gear 305 is fixedly sleeved on the outer surface of the rotating shaft 304, the electric push rod 307 is installed outside the support plate 101, and the free end of the electric push rod 307 is fixedly connected with the toothed plate 306.
[0029] The composite control mechanism 3 is used to connect and mount the suction sampling cylinder 4, and control the movement of the suction sampling cylinder 4 through the electric push rod 302, so as to control the suction sampling cylinder 4 to be inserted into the liquid food raw material, and realize the suction and acquisition of the measured material after direct insertion in cooperation with the variable piston mechanism, and the toothed plate 306 is driven to reciprocate through the electric push rod 307, so as to control the composite control mechanism 3 to rotate and swing along the mounting support mechanism 1 through the meshing gear 305, so as to further control the deflection of the suction sampling cylinder 4, and quickly cooperate with the top multi-detection mechanism 2 after being turned upward, so as to realize rapid detection, and after detection, the deflection of the suction sampling cylinder 4 is further controlled, and when the deflection is directed to the waste collection mechanism 10, the detected liquid food can be discharged into the waste collection assembly 10, and after reverse rotation, it returns to the position directed downward, waiting for the next round of detection processing.
[0030] Wherein, the suction sampling cylinder 4 includes cylinder body 401, electric push rod four 402, baffle plate 403, fixed column 404 and storage ring groove 405, electric push rod four 402 is fixedly installed in cylinder body 401, baffle plate 403 is fixedly sleeved in cylinder body 401, fixed column 404 is arrayed on baffle plate 403, storage ring groove 405 is opened in the bottom of cylinder body 401, the free end of electric push rod four 402 is movably through baffle plate 403 and is fixedly connected with variable piston mechanism.
[0031] Suction sampling cylinder 4 moves in cylinder body 401 through variable piston mechanism controlled by electric push rod four 402, can be suctioned when immersed in liquid food, and cooperates with the deflection of end processing mechanism 8 to seal suction sampling cylinder 4, ensures the sealing of suction after the bottom of cylinder body 401 is large diameter, avoids the difficulty of direct subsequent detection when small diameter is used to obtain liquid food, and also needs to transfer the extracted sample to a large diameter container again and cooperate with multi-detection mechanism 2 for detection, actually realizes fast detection, and when the bottom of cylinder body 401 is inserted into liquid food, the sampling of a small amount of liquid food can also be sealed and obtained through the deflection sealing of end processing mechanism 8 after immersion, further shortens the acquisition time of the sample solution to be detected.
[0032] Wherein, the variable piston mechanism includes connecting rod 5, upper piston part 6 and lower piston part 7, the lower piston part 7 is elastically nested at the bottom of the upper piston part 6, the upper piston part 6 includes movable plug plate 601, hole one 602, mounting hole 603, side plate 604, electromagnet 605 and adaptive cavity 606, the lower piston part 7 includes rotating disc 701, hole two 702, rotating rod one 703, fixed ring one 704, fixed ring two 705, torsional spring 706 and magnetic attraction plate 707, one end of connecting rod 5 is fixedly connected with movable plug plate 601, and the other end of connecting rod 5 is fixedly connected with the free end of electric push rod four 402, hole one 602 is opened in movable plug plate 601, hole two 702 is opened in rotating disc 701, hole two 702 is located on the rotating path of hole one 602, adaptive cavity 606 is opened at the bottom of movable plug plate 601, rotating disc 701 is rotatably sleeved in adaptive cavity 606, mounting hole 603 is opened in the middle of movable plug plate 601, side plate 604 is symmetrically fixed on the inner wall of mounting hole 603, electromagnet 605 is fixedly installed on side plate 604, one end of rotating rod one 703 is fixedly connected with the top of rotating disc 701, and the other end of rotating rod one 703 is located in mounting hole 603, fixed ring one 704 is fixedly connected with the outer wall of rotating rod one 703, fixed ring two 705 is fixedly sleeved in mounting hole 603, torsional spring 706 is connected between fixed ring one 704 and fixed ring two 705, and magnetic attraction plate 707 is symmetrically connected with the outer wall of rotating rod one 703.
[0033] The variable piston mechanism, on one hand, through the sealing ring sleeved outside the upper piston part 6, realizes the suction treatment of the liquid food to be detected by cooperating with the movement control of the electric push rod 402, on the other hand, after the suction sampling cylinder 4 is turned upward, the end processing mechanism 8 is moved away from the end of the cylinder body 401, the variable piston mechanism is moved upward along the cylinder body 401 by penetrating the upper and lower surfaces of the variable piston mechanism, the filtration treatment is realized, the liquid food is filtered below the variable piston mechanism, the solid components in the liquid food are separated by the variable piston mechanism and pushed to the top end of the cylinder body 401, the deflection action of the end processing mechanism 8 is used again to sweep out the separated solid components along the top of the variable piston mechanism and collect them in the storage ring groove 405, the filtration treatment after the liquid food sample is obtained is realized, the pure liquid detection is facilitated, the detection process is avoided from being interfered by the solid components, and the filter is separated and collected in the waste collecting mechanism 10 together with the waste liquid after detection when the filter in the storage ring groove 405 follows the cylinder body 401 to rotate towards the waste collecting mechanism 10.
[0034] Specifically, the electromagnetic iron 605 is started and a magnetic attraction force is generated, the magnetic attraction plate 707 is attracted by the magnetic attraction force, and the rotating rod one 703 is driven to overcome the elasticity of the torsional spring 706 and rotate, so that the rotating rod one 703 drives the rotating disc 701 to rotate in the adaptive cavity 606 at the bottom of the movable plug plate 601, the hole two 702 originally staggered with the hole one 602 on the movable plug plate 601 is rotated and aligned with the hole one 602 by the rotating effect, the upper and lower penetration of the variable piston mechanism is realized, the filter mechanism is simulated, and the filtration treatment is performed upward to the bottom of the obtained liquid food after turning over, and the piston action is simply performed to keep the hole one 602 and the hole two 702 staggered and closed; Specifically, the variable piston mechanism after the filtration treatment is moved to reset to ensure subsequent detection treatment; Specifically, the hole one 602 and the hole two 702 are adapted to the fixed column 404, so that the fixed column 404 is nested in the hole one 602 and the hole two 702 when the variable piston mechanism is reset after completing the filtration, the inner walls of the hole one 602 and the hole two 702 are pushed and cleaned by the friction sleeve, on one hand to avoid blockage, on the other hand to clean the inner walls of the hole one 602 and the hole two 702 to avoid liquid residue, realize self-cleaning and self-unblocking, and avoid affecting subsequent detection.
[0035] When the sample to be tested contains solid impurities, after the sampling cylinder 4 is turned over in place, the electromagnet 605 inside the variable piston mechanism is powered on to generate a magnetic force to attract the magnetic plate 707, causing the rotating disc 701 of the lower piston part 7 to rotate against the elastic force of the torsional spring 706 until the hole two 702 on it is completely aligned with the hole one 602 on the upper piston part 6, forming a through channel. At this time, the electric push rod four 402 is started again to push the variable piston mechanism, which has become a "filter screen", to move slowly upwards, and the liquid component passes through the aligned hole one 602 and hole two 702, while the solid impurities are intercepted on the piston. The variable piston mechanism continues to move upwards, pushing the solid impurities to the top end of the cylinder body 401 (i.e. the original bottom opening), and cooperates with the rotary movement of the end processing mechanism 8 to push the solid impurities into the storage ring groove 405.
[0036] The end processing mechanism 8 includes a rotating rod two 801, a support seat 802, a sealing plate 803, and a drive motor 804. The support seat 802 is fixed on the outer wall of the cylinder body 401, the rotating rod two 801 is rotatably sleeved in the support seat 802, the sealing plate 803 is fixed at the bottom of the rotating rod two 801, the bottom end of the cylinder body 401 is located in the rotating path of the sealing plate 803, and the output shaft of the drive motor 804 is fixedly connected with the rotating rod two 801. The diameter value of the sealing plate 803 is less than the diameter value of the storage ring groove 405.
[0037] The end processing mechanism 8 switches the end sealing state of the sampling cylinder 4 by rotating and deflecting, realizes the sealing storage of the material to be tested, and pushes and separates the solid components separated at the end of the variable piston mechanism when moving along the top of the sampling cylinder 4. In addition, after the final detection work is completed, the sealing cylinder 401 seals the detection chamber to avoid environmental pollution of the inner wall and affect the subsequent detection work. Further, by embedding the heating component on the outer wall of the connecting rod 5, the detection chamber of the cylinder 401 can be sterilized at high temperature under the sealing state.
[0038] The bottom of the mounting frame 301 is fixedly connected with an outer wall cleaning ring 9, and the outer wall cleaning ring 9 is sleeved on the outer side of the sampling cylinder 4.
[0039] Through the sleeving effect of the outer wall cleaning ring 9, the outer wall cleaning is realized when the cylinder body 401 relatively slides in the outer wall cleaning ring 9.
[0040] The waste collecting mechanism 10 comprises a support frame 1001, a storage box 1002 and a flow guide frame 1003. The support frame 1001 is fixed at the bottom of the connecting frame 102. The storage box 1002 is placed on the support frame 1001. The inner wall of the support frame 1001 is fixedly connected with a positioning rod. The storage box 1002 is positioned by sleeving the end positioning hole with the positioning rod. The flow guide frame 1003 is fixedly installed at the top of the support frame 1001. One end of the flow guide frame 1003 faces the inside of the storage box 1002. The other end of the flow guide frame 1003 is located on the rotating path of the suction sampling cylinder 4.
[0041] The waste collecting mechanism 10 is used for quickly cleaning and collecting the liquid food after detection in a plurality of continuous detection processes. The deflection and reset of the composite control mechanism 3 are used to realize the quick pouring and reset of the suction sampling cylinder 4.
[0042] The detection method of the liquid food detection device comprises the following detection steps: S1, sampling step: control the composite control mechanism 3 to drive the suction sampling cylinder 4 to descend into the liquid food to be detected, and drive the variable piston mechanism to ascend, so as to suck the liquid food into the suction sampling cylinder 4. Then, control the end processing mechanism 8 to seal the bottom end of the suction sampling cylinder 4; S2, transfer and positioning step: control the composite control mechanism 3 to lift and overturn the suction sampling cylinder 4, so that the open end faces upward and is located directly below the multi-detection mechanism 2; S3, detection step: drive the multi-detection mechanism 2 to descend and detect the liquid food in the suction sampling cylinder 4; S4, waste treatment step: after detection, control the composite control mechanism 3 to drive the suction sampling cylinder 4 to deflect above the waste collecting mechanism 10, and open the end processing mechanism 8 to discharge the detected liquid food.
[0043] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application. The scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A liquid food detection device, comprising a mounting support mechanism (1) and a plurality of detection mechanisms (2) arranged on the top of the mounting support mechanism (1), characterized in that: The inside of the mounting support mechanism (1) is rotatably mounted with a composite control mechanism (3), the bottom of the composite control mechanism (3) is fixedly connected with a suction sampling cylinder (4), the inside of the suction sampling cylinder (4) movably sleeved with a variable piston mechanism, the outer wall of the suction sampling cylinder (4) is mounted with an end processing mechanism (8), the bottom of the mounting support mechanism (1) is mounted with a waste collecting mechanism (10) located outside the suction sampling cylinder (4); The composite control mechanism (3) is used for controlling the suction sampling cylinder (4) to be immersed into the liquid food, and the variable piston mechanism is used for sucking the liquid food to be measured into the suction sampling cylinder (4), the end processing mechanism (8) is used for sealing the bottom end of the suction sampling cylinder (4), the composite control mechanism (3) makes the sample liquid stored in the suction sampling cylinder (4) overturn upwards to the directly below the multi-item detection mechanism (2), the composite control mechanism (3) drives the suction sampling cylinder (4) to further deflect and direct the discharged liquid food after detection, and the variable piston mechanism cooperates with the end processing mechanism (8) and is also used for filtering and separating the solid components in the liquid food.
2. The liquid food detection apparatus according to claim 1, characterized by: The mounting support mechanism (1) comprises a support plate (101), a connecting frame (102) and a mounting plate (103), the two ends of the connecting frame (102) are fixedly connected with one support plate (101) respectively, and the mounting plate (103) is fixedly connected outside the connecting frame (102).
3. The liquid food detection apparatus according to claim 2, characterized by: The multi-item detection mechanism (2) comprises a detection general console (201), an electric push rod one (202) and a multi-item detection unit (203), the electric push rod one (202) is fixedly installed at the top of the mounting plate (103), the free end of the electric push rod one (202) is fixedly connected with the detection general console (201), and the multi-item detection unit (203) is arranged at the bottom of the detection general console (201).
4. The liquid food detection apparatus according to claim 3, characterized by: The composite control mechanism (3) comprises a mounting frame (301), an electric push rod two (302), a connecting head (303), a rotating shaft (304), a gear one (305), a toothed plate (306) and an electric push rod three (307), the mounting frame (301) is arranged between the two support plates (101), the rotating shaft (304) is fixed outside the mounting frame (301) and rotatably installed in the support plate (101) through a bearing, the electric push rod two (302) is fixedly installed in the mounting frame (301), the free end of the electric push rod two (302) is fixedly connected with the connecting head (303), the connecting head (303) is fixedly connected at the top of the suction sampling cylinder (4), the gear one (305) is fixedly sleeved on the outer surface of the rotating shaft (304), the electric push rod three (307) is installed outside the support plate (101), and the free end of the electric push rod three (307) is connected with the toothed plate (306).
5. The liquid food detection apparatus according to claim 4, characterized by: The suction sampling cylinder (4) comprises a cylinder body (401), an electric push rod four (402), a baffle (403), a fixed column (404) and a storage ring groove (405), the electric push rod four (402) is fixedly installed in the cylinder body (401), the baffle (403) is fixedly sleeved in the cylinder body (401), the fixed column (404) is arrayed on the baffle (403), the storage ring groove (405) is arranged at the bottom of the cylinder body (401), and the free end of the electric push rod four (402) is movably arranged through the baffle (403) and is fixedly connected with the variable piston mechanism.
6. The liquid food detection apparatus according to claim 5, characterized by: The variable piston mechanism comprises a connecting rod (5), an upper piston part (6) and a lower piston part (7), the lower piston part (7) is elastically nested at the bottom of the upper piston part (6), the upper piston part (6) comprises a movable plug plate (601), a hole one (602), a mounting hole (603), a side plate (604), an electromagnet (605) and an adaptive cavity (606), the lower piston part (7) comprises a rotating disc (701), a hole two (702), a rotating rod one (703), a fixed ring one (704), a fixed ring two (705), a torsional spring (706) and a magnetic attraction plate (707), one end of the connecting rod (5) is fixedly connected with the movable plug plate (601), the other end of the connecting rod (5) is fixedly connected with the free end of the electric push rod four (402), the hole one (602) is arranged on the movable plug plate (601), the hole two (702) is arranged on the rotating disc (701), the hole two (702) is located on the rotating path of the hole one (602), the adaptive cavity (606) is arranged at the bottom of the movable plug plate (601), the rotating disc (701) is rotatably sleeved in the adaptive cavity (606), the mounting hole (603) is arranged at the middle of the movable plug plate (601), the side plate (604) is symmetrically fixed on the inner wall of the mounting hole (603), the electromagnet (605) is fixedly installed on the side plate (604), one end of the rotating rod one (703) is fixedly connected with the top of the rotating disc (701), and the other end of the rotating rod one (703) is located in the mounting hole (603), the fixed ring one (704) is fixedly connected with the outer wall of the rotating rod one (703), the fixed ring two (705) is fixedly sleeved in the mounting hole (603), the torsional spring (706) is connected between the fixed ring one (704) and the fixed ring two (705), and the magnetic attraction plate (707) is symmetrically connected with the outer wall of the rotating rod one (703).
7. The liquid food detection apparatus according to claim 6, characterized by: The end processing mechanism (8) comprises a rotating rod two (801), a support seat (802), a sealing plate (803) and a driving motor (804), the support seat (802) is fixed on the outer wall of the barrel (401), the rotating rod two (801) is rotatably sleeved in the support seat (802), the sealing plate (803) is fixed at the bottom of the rotating rod two (801), the bottom end of the barrel (401) is located on the rotating path of the sealing plate (803), the output shaft of the driving motor (804) is fixedly connected with the rotating rod two (801), and the diameter value of the sealing plate (803) is less than that of the storage ring groove (405).
8. The liquid food detection apparatus according to claim 4, characterized by: The bottom of the mounting frame (301) is fixedly connected with an outer wall cleaning ring (9), and the outer wall cleaning ring (9) is sleeved on the outer side of the suction sampling barrel (4).
9. The liquid food detection apparatus according to claim 1, characterized by: The waste collecting mechanism (10) comprises a support frame (1001), a storage box (1002) and a flow guide frame (1003), the support frame (1001) is fixed at the bottom of the connecting frame (102), the storage box (1002) is placed on the support frame (1001), the inner wall of the support frame (1001) is fixedly connected with a positioning rod, the storage box (1002) is sleeved and positioned with the positioning rod through an end positioning hole, and the flow guide frame (1003) is fixedly installed at the top of the support frame (1001), one end of the flow guide frame (1003) faces the inside of the storage box (1002), and the other end of the flow guide frame (1003) is located on the rotating path of the suction sampling barrel (4).
10. The detection method of the liquid food detection apparatus according to any one of claims 1 to 9, characterized in that: The detection steps comprise the following steps: S1, a sampling step: controlling the composite control mechanism (3) to drive the suction sampling barrel (4) to descend into the liquid food to be detected, and driving the variable piston mechanism to ascend, so that the liquid food is sucked into the suction sampling barrel (4), and then controlling the end processing mechanism (8) to seal the bottom end of the suction sampling barrel (4); S2, a transfer and positioning step: controlling the composite control mechanism (3) to lift and overturn the suction sampling barrel (4), so that the open end faces upwards and is located directly below the multi-detection mechanism (2); S3, a detection step: driving the multi-detection mechanism (2) to descend and detecting the liquid food in the suction sampling barrel (4); S4, a waste treatment step: after the detection is completed, the composite control mechanism (3) drives the suction sampling barrel (4) to deflect above the waste collecting mechanism (10), and the end processing mechanism (8) is opened, so that the detected liquid food is discharged.