Waste liquid classification treatment device for food detection

Abstract

The invention relates to the technical field of food detection, in particular to a food detection waste liquid classification treatment device which comprises a filtering mechanism arranged between a funnel and a treatment box, a detection mechanism is arranged between the treatment box and the filtering mechanism, and the filtering mechanism comprises a filtering box, a filtering assembly, a switching mechanism, two turnover mechanisms and two cleaning structures; when the filtering assembly is located at the lower end of the funnel, the filtering assembly is located at the working position, and when the filtering assembly is located at the cleaning mechanism, the filtering assembly is located at the cleaning position; the switching mechanism is used for driving the filtering assembly to be switched between a working position and a cleaning position; the overturning mechanism is used for overturning the filtering assembly at the cleaning position by 180 degrees; the two cleaning structures correspond to the two turnover mechanisms correspondingly, and each cleaning structure comprises a cleaning assembly and a collecting assembly; the device is provided with the filter box, the filter assembly, the switching mechanism, the turnover mechanism and the cleaning mechanism, so that the problems of waste liquid leakage and secondary pollution in the cleaning process are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of food detection, and more particularly to a waste liquid classification treatment device for food detection. Background Art

[0002] During the food detection process, the generation of waste liquid is inevitable. These waste liquids often contain various chemical substances, including acidic, alkaline components, and solid impurities, etc. If not properly treated, they will not only pollute the environment but also pose a threat to people's health. Therefore, how to efficiently and safely treat these waste liquids has become an urgent problem to be solved in the field of food detection.

[0003] The patent with the publication number CN222434253U discloses a waste liquid treatment device for food inspection and detection. When treating waste liquid, first, the waste liquid is poured into a funnel and flows into a filter box through the funnel. The waste residue in the waste liquid is filtered by a filter net. Then, the waste liquid flows into a detection tube, and the pH value of the waste liquid is detected by a pH value sensor in the detection tube. The value sensor transmits the detection signal to a PLC processor, and the PLC processor controls an anti-corrosion three-way solenoid valve to open different channels. The waste liquid flows into the corresponding area in a treatment box through the anti-corrosion three-way solenoid valve and reacts with a neutralizing agent in an acid neutralization area or an alkali neutralization area, and is neutralized. The released waste gas enters a gas collection bag through an exhaust pipe for collection.

[0004] Although the above solution realizes the separation and treatment of waste liquid according to the pH value, however, before all waste liquids are detected, they all need to pass through a filter net. If the impurities attached to the filter net are acidic, and the next waste liquid to be treated passes through the filter net without knowing the situation, it may react with the impurities remaining on the filter net. If the filter net is removed and tilted, the waste liquid generated during cleaning is also acidic, and the waste liquid also needs to be treated. Summary of the Invention

[0005] In view of the above problems, a waste liquid classification treatment device for food detection is provided. By setting a filter box, a filtering component, a switching mechanism, a flipping mechanism, and a cleaning mechanism, the problems of waste liquid leakage and secondary pollution during the cleaning process are avoided.

[0006] To solve the problems of the existing technology, the present invention provides a waste liquid classification treatment device for food detection, which includes a filtering mechanism arranged between a funnel and a treatment tank, a detection mechanism is arranged between the treatment tank and the filtering mechanism. The filtering mechanism includes a filtering tank, a filtering component, a switching mechanism, two flipping mechanisms and two cleaning structures; the filtering component is arranged inside the filtering tank. When the filtering component is at the lower end of the funnel, the filtering component is in the working position. When the filtering component is at the cleaning mechanism, the filtering component is in the cleaning position; the switching mechanism is used to drive the filtering component to switch between the working position and the cleaning position; the two flipping mechanisms are respectively arranged at both ends of the filtering tank, and the flipping mechanism is used to flip the filtering component 180 degrees in the cleaning position; the two cleaning structures correspond to the two flipping mechanisms respectively. The cleaning structure includes a cleaning component and a collection component. The collection component is used to collect the impurities and waste liquid to be cleaned and guide the waste liquid to the corresponding space inside the treatment tank.

[0007] Preferably, the filtering component includes two filter meshes and a connecting rod connecting the two filter meshes. When one of the filter meshes is in the working position, the other filter mesh is in the cleaning position; the switching mechanism includes a mounting plate for fixing the connecting rod and a horizontal moving structure for driving the mounting plate to move between the two cleaning structures.

[0008] Preferably, the switching mechanism further includes a fixed-axis switching structure arranged in the middle of the mounting plate. The fixed-axis switching structure includes a first rotating shaft rotatably connected to the mounting plate. The upper end of the first rotating shaft is provided with a fixing block connected to the connecting rod, and the lower end of the first rotating shaft is provided with a first driving component for driving the first rotating shaft to rotate.

[0009] Preferably, the fixed-axis switching structure further includes two fixing structures arranged on both sides of the fixing block. The fixing structure includes a fixed clamping block and a second linear driver; the middle of the fixed clamping block is movably connected to the mounting plate; the second linear driver is arranged at the lower end of the mounting plate and is connected to the fixed clamping block.

[0010] Preferably, two fixing grooves respectively docked with the two fixed clamping blocks are formed on the side wall of the fixing block.

[0011] Preferably, the flipping mechanism includes a clamping structure for clamping the filter mesh. The clamping structure includes two annular clamping plates and a second driving component for driving the two annular clamping plates to move towards or away from each other.

[0012] Preferably, the flipping mechanism further includes a fixed-axis flipping structure. The fixed-axis flipping structure includes a second rotating shaft, the second rotating shaft is rotatably connected to the side wall of the filtering tank. The two ends of the second rotating shaft are respectively provided with a connecting frame connecting the second driving component and a fixing frame for fixing its own axis. A third rotating driver is arranged on one side of the second rotating shaft.

[0013] Preferably, one side of the filter net connected to the connecting rod is provided with a plug rod, and a limiting block is arranged at the end of the plug rod. Slots corresponding to the plug rod are opened at both ends of the connecting rod along the axial direction, and a limiting groove corresponding to the limiting block is arranged at the end of the slot.

[0014] Preferably, the filtering assembly further includes two magnetic attraction assemblies, which are respectively arranged at the bottoms of the two slots, and the magnetic attraction assemblies are used to adsorb the plug rod in the slots.

[0015] Preferably, the cleaning assembly includes a cleaning cover and a collection cover. A water supply pipe is arranged on the cleaning cover, and the collection cover is used to guide waste water and impurities to flow to the collection assembly. The collection assembly includes a collection box and a barrier net. The collection box is arranged at the lower end of the cleaning position of the filtering assembly, and the barrier net is arranged inside the collection box.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: 1. The present invention is provided with a filter box, a filtering assembly, a switching mechanism, a flipping mechanism and a cleaning mechanism. The filtering assembly is arranged between the funnel and the treatment box, which can efficiently intercept solid impurities in the waste liquid, ensure that the pure waste liquid continues to flow to the detection mechanism, and the detection mechanism accurately detects the pH value of the waste liquid. According to the detection results, acidic and alkaline waste liquids are respectively guided to different spaces inside the treatment box, realizing the classified treatment of the waste liquid. The switching mechanism can drive the filtering assembly to automatically switch between the working position and the cleaning position. After the filtering assembly reaches the cleaning position, the flipping mechanism is automatically started to flip the filtering assembly by 180 degrees, so that the side originally blocking the solid impurities faces downward, which is convenient for the cleaning assembly to clean. The switching mechanism is started again to reset the filtering assembly to the working position at the lower end of the funnel. By directly cleaning the filtering assembly inside the device, the problems of waste liquid leakage and secondary pollution during the cleaning process are avoided. At the same time, the cleaning waste liquid can be directly guided to the corresponding space inside the treatment box, realizing the effective utilization of resources.

[0017] 2. The present invention is provided with two filter nets, a connecting rod, a mounting plate and a horizontal movement structure. When one filter net is in the working position, the other filter net is in the cleaning position. The two filter nets are connected by a connecting rod and can be switched between the working position and the cleaning position under the drive of the switching mechanism, ensuring the seamless connection between the filtering and cleaning operations, thereby improving the overall operation efficiency and processing capacity of the device.

[0018] 3. The present invention is provided with a fixed-axis switching structure. The fixed-axis switching structure enables the filter net to adapt to the change of the pH value of the waste liquid. When the pH value of the waste liquid changes, the fixed-axis switching structure can change the corresponding cleaning structure of the filter net by rotating the first rotating shaft, ensuring that the waste liquid generated during the cleaning process can flow into the corresponding waste liquid collection space inside the treatment box, thereby avoiding the waste water for cleaning the filter net from flowing into the space with different pH values inside the treatment box. Description of the Drawings

[0019] Figure 1 is a perspective view of the filtering mechanism in a waste liquid classification treatment device for food detection according to the present invention.

[0020] Figure 2 is a left view of the filtering mechanism in a waste liquid classification treatment device for food detection according to the present invention.

[0021] Figure 3 is Figure 2 a perspective sectional view at A - A in

[0022] Figure 4 is a perspective view of the filtering component, switching mechanism and flipping mechanism in a waste liquid classification treatment device for food detection according to the present invention.

[0023] Figure 5 is a perspective view of the filtering component, mounting plate and fixed - axis switching structure in a waste liquid classification treatment device for food detection according to the present invention.

[0024] Figure 6 is an exploded view of the fixing block and fixing structure in a waste liquid classification treatment device for food detection according to the present invention.

[0025] Figure 7 is a perspective view of the filter net, clamping structure and fixed - axis flipping structure in a waste liquid classification treatment device for food detection according to the present invention.

[0026] Figure 8 is a perspective view of the filter net, clamping structure and connecting frame in a waste liquid classification treatment device for food detection according to the present invention.

[0027] Figure 9 is a perspective view of the second driving component and fixed - axis flipping structure in a waste liquid classification treatment device for food detection according to the present invention.

[0028] Figure 10 is an exploded view of the filter net, connecting rod and magnetic attraction component in a waste liquid classification treatment device for food detection according to the present invention.

[0029] Figure 11 is a perspective view of the filter net, cleaning component and collection component in a waste liquid classification treatment device for food detection according to the present invention.

[0030] The reference numerals in the figure are: 1, filtration box; 2, filtration component; 21, filter screen; 211, insertion rod; 212, limit block; 22, connecting rod; 221, slot; 222, limit groove; 23, magnetic attraction component; 3, switching mechanism; 31, mounting plate; 32, horizontal movement structure; 321, first moving block; 322, first linear driver; 33, fixed-axis switching structure; 331, first rotating shaft; 332, fixed block; 3321, fixed groove; 333, first driving component; 3331, first rotating driver; 3332, transmission component; 334, fixing structure; 3341, fixed clamping block; 3342, second linear driver; 4, flipping mechanism; 41, clamping structure; 411, annular clamping plate; 412, second driving component; 4121, double-headed lead screw; 4122, guide rod; 4123, second moving block; 4124, second rotating driver; 42, fixed-axis flipping structure; 421, second rotating shaft; 422, connecting frame; 423, fixing frame; 424, third rotating driver; 5, cleaning structure; 51, cleaning component; 511, cleaning cover; 5111, water supply pipe; 512, collection cover; 52, collection component; 521, collection box; 522, barrier net. Detailed implementation manners

[0031] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0032] Refer to Figures 1 to 11 As shown in the figure: A waste liquid classification treatment device for food detection is provided with a filtration mechanism between a funnel and a treatment box, and a detection mechanism is arranged between the treatment box and the filtration mechanism. The filtration mechanism includes a filtration box 1, a filtration component 2, a switching mechanism 3, two flipping mechanisms 4 and two cleaning structures 5; the filtration component 2 is arranged inside the filtration box 1. When the filtration component 2 is at the lower end of the funnel, the filtration component 2 is in the working position. When the filtration component 2 is at the cleaning mechanism, the filtration component 2 is in the cleaning position; the switching mechanism 3 is used to drive the filtration component 2 to switch between the working position and the cleaning position; the two flipping mechanisms 4 are respectively arranged at both ends of the filtration box 1, and the flipping mechanism 4 is used to flip the filtration component 2 by 180 degrees in the cleaning position; the two cleaning structures 5 correspond to the two flipping mechanisms 4 respectively. The cleaning structure 5 includes a cleaning component 51 and a collection component 52. The collection component 52 is used to collect the impurities and waste liquid to be cleaned and guide the waste liquid into the corresponding space inside the treatment box.

[0033] In the initial state, the filtering component 2 is located at the working position at the lower end of the funnel, ready to receive waste liquid. After the waste liquid is poured through the funnel, it first flows through the filtering component 2. The filtering component 2 intercepts solid impurities, allowing the pure waste liquid to continue flowing. Then, the filtered waste liquid enters the detection mechanism, which detects the pH value of the waste liquid. According to the measurement results, acidic and alkaline waste liquids are respectively guided to different spaces inside the treatment tank. If the waste liquid is acidic, the switching mechanism 3 drives the filtering component 2 to move to the cleaning structure 5 connected to the space for collecting acidic waste liquid inside the treatment tank. If the waste liquid is alkaline, the switching mechanism 3 drives the filtering component 2 to another cleaning structure 5. When the filtering component 2 reaches the cleaning position, the flipping mechanism 4 is activated to flip the filtering component 2 by 180 degrees, making the side of the filtering component 2 that originally blocked solid impurities face down. Immediately afterwards, the cleaning component 51 starts to work, effectively removing the residues on the filtering component 2. The acidic or alkaline substances cleaned off flow into the corresponding collection component 52 under the action of gravity and are finally guided to the corresponding spaces inside the treatment tank. After the cleaning is completed, the switching mechanism 3 is activated again to reset the filtering component 2 to the working position at the lower end of the funnel, ready for the treatment of the next batch of waste liquid. By directly cleaning the filtering component 2 inside the device, the problems of waste liquid leakage and secondary pollution during the cleaning process are avoided. At the same time, the cleaned waste liquid can be directly guided to the corresponding spaces inside the treatment tank, achieving the effective utilization of resources.

[0034] Refer to Figure 3 and Figure 4 As shown: The filtering component 2 includes two filter meshes 21 and a connecting rod 22 connecting the two filter meshes 21. When one of the filter meshes 21 is in the working position, the other filter mesh 21 is in the cleaning position; the switching mechanism 3 includes a mounting plate 31 for fixing the connecting rod 22 and a horizontal moving structure 32 for driving the mounting plate 31 to move between the two cleaning structures 5.

[0035] Specifically, the horizontal moving structure 32 includes two first moving blocks 321 arranged at both ends of the mounting plate 31 and a first linear driver 322 for respectively driving the two first moving blocks 321 to move at a constant speed.

[0036] In the initial state, the first filter screen 21 is placed at the working position to directly receive and filter the waste liquid, while the second filter screen 21 is located at the cleaning position, ready for necessary maintenance work. When the first filter screen 21 has completely processed the waste liquid in the funnel, the horizontal movement structure 32 is activated, and the two first linear drivers 322 act synchronously. The mounting plate 31 and the filter screen 21 assembly connected thereto are smoothly moved by pulling the first moving block 321 until the first filter screen 21 is transferred to the cleaning position. At the same time, the second filter screen 21 is docked to the working position to continue the waste liquid filtering operation. While the first filter screen 21 is being cleaned, the second filter screen 21 processes the waste liquid from the funnel. After the second filter screen 21 has processed the waste liquid in the funnel, the horizontal movement structure 32 resets the cleaned first filter screen 21 to the working position and moves the second filter screen 21 to the cleaning position at the same time. This cyclic process ensures the connection between the filtering and cleaning operations, thereby improving the overall operating efficiency and processing capacity of the device.

[0037] Refer to Figure 3 、 Figure 4 and Figure 5 As shown: The switching mechanism 3 further includes a fixed-axis switching structure 33 provided in the middle of the mounting plate 31. The fixed-axis switching structure 33 includes a first rotating shaft 331 rotatably connected to the mounting plate 31. A fixed block 332 connected to the connecting rod 22 is provided at the upper end of the first rotating shaft 331, and a first driving assembly 333 for driving the first rotating shaft 331 to rotate is provided at the lower end of the first rotating shaft 331.

[0038] Specifically, the first driving assembly 333 includes a first rotating driver 3331 provided at the lower end of the mounting plate 31 and a transmission assembly 3332 for connecting the first rotating driver 3331 and the first rotating shaft 331.

[0039] Since the horizontal movement structure 32 can only drive the two filter meshes 21 to reciprocate in a straight line direction, the filter meshes 21 can only always correspond to the same cleaning structure 5, resulting in the fixed impurities with different pH values remaining on the filter meshes 21 being cleaned at the same cleaning structure 5. Therefore, a fixed-axis switching structure 33 is provided. In the initial state, assuming that the first filter mesh 21 is located at the lower end of the funnel, and the cleaning structure 5 corresponding to it is connected to the space in the treatment tank specifically for collecting acidic waste liquid. However, during the actual operation process, the pH value of the waste liquid may change. For example, when the waste liquid passing through the first filter mesh 21 is detected to be alkaline, the impurities remaining on the filter mesh 21 will be alkaline. At this time, the fixed-axis switching structure 33 will be activated, and the first rotary driver 3331 in the first driving assembly 333 will start to operate, driving the first rotating shaft 331 to start rotating through the transmission assembly 3332. Then, through the fixed block 332 and the connecting rod 22, the two filter meshes 21 are driven to rotate synchronously. When the first rotating shaft 331 rotates 180 degrees and then stops, at this time, the position of the first filter mesh 21 changes, and the cleaning structure 5 corresponding to the first filter mesh 21 is connected to the space in the treatment tank specifically for collecting alkaline waste liquid, thus avoiding the waste water for cleaning the filter mesh 21 from flowing into the spaces with different pH values in the treatment tank.

[0040] Refer to Figure 5 and Figure 6 As shown: The fixed-axis switching structure 33 further includes two fixed structures 334 arranged on both sides of the fixed block 332. The fixed structure 334 includes a fixed clamping block 3341 and a second linear driver 3342; the middle of the fixed clamping block 3341 is movably connected to the mounting plate 31; the second linear driver 3342 is arranged at the lower end of the mounting plate 31, and the second linear driver 3342 is connected to the fixed clamping block 3341.

[0041] Since the first rotating shaft 331 is rotatably connected to the mounting plate 31, the fixing block 332 connected to the first rotating shaft 331 and the entire filtering assembly 2 are capable of rotating. However, when the horizontal moving structure 32 drives the mounting plate 31 to move linearly, the generated vibration may disturb the first rotating shaft 331, causing the first rotating shaft 331 to rotate unexpectedly. Once such rotation occurs, the positions of the two filter meshes 21 will deviate, thereby affecting the ability of the two filter meshes 21 to participate in the cleaning and filtering operations normally. Therefore, two fixing structures 334 are provided. After adjusting the orientations of the two filter meshes 21, the two fixing structures 334 will be activated simultaneously. The second linear driver 3342 in the fixing structure 334 starts to operate, pushing the fixing block 3341 to move linearly towards the fixing block 332 and finally abutting against the fixing block 332. Since the two fixing blocks 3341 apply pressure on both sides of the fixing block 332 simultaneously, this ensures that the fixing block 332 is in a balanced stress state, and the abutment between the fixing block 3341 and the fixing block 332 generates frictional force. When this frictional force is large enough, the frictional force can effectively prevent the fixing block 332 and its connected first rotating shaft 331 from rotating, thereby ensuring the stability of the position of the filter mesh 21 when subjected to external disturbances, and further enabling the two filter meshes 21 to smoothly enter the cleaning position and the working position.

[0042] Refer to Figure 6 As shown: Two fixing grooves 3321 respectively docked with the two fixing blocks 3341 are formed on the side wall of the fixing block 332.

[0043] To prevent the fixing block 332 from rotating through frictional force, the magnitude of the frictional force needs to be controlled. A smaller frictional force may not provide sufficient resistance for the fixing block 332 to prevent it from rotating, while a larger frictional force may cause extrusion deformation of the fixing block 332 or the fixing block 3341, thereby affecting the abutment between the fixing block 3341 and the fixing block 332. Therefore, fixing grooves 3321 are formed on the side wall of the fixing block 332. After adjusting the orientations of the two filter meshes 21, the second linear driver 3342 drives the fixing block 3341 to insert into the fixing grooves 3321. Through the cooperation between the fixing block 3341 and the fixing grooves 3321, the rotation of the fixing block 332 can be effectively prevented, thus avoiding the problem of extrusion deformation of the fixing block 332 or the fixing block 3341 that may be caused by simply relying on frictional force.

[0044] Refer to Figure 4 、 Figure 5 and Figure 5 As shown: The flipping mechanism 4 includes a clamping structure 41 for clamping the filter mesh 21. The clamping structure 41 includes two annular clamping plates 411 and a second driving assembly 412 for driving the two annular clamping plates 411 to move towards or away from each other.

[0045] Specifically, the second driving component 412 includes a double-headed lead screw 4121, two guide rods 4122, two second moving blocks 4123, and a second rotary driver 4124. The two guide rods 4122 are arranged in parallel with the double-headed lead screw 4121. The two second moving blocks 4123 are respectively arranged on the two threaded portions of the double-headed lead screw 4121, and both ends of the second moving block 4123 are respectively connected to the two guide rods 4122. The second rotary driver 4124 is in transmission connection with the double-headed lead screw 4121.

[0046] After the filter screen 21 moves to the cleaning position, the clamping structure 41 starts to work. The second rotary driver 4124 in the second driving component 412 starts to rotate. The second rotary driver 4124 drives the double-headed lead screw 4121 to rotate. The two second moving blocks 4123 move along the lead screw towards the middle of the double-headed lead screw 4121. During the movement of the two second moving blocks 4123, the two annular clamping plates 411 move synchronously, so that the two annular clamping plates 411 gradually approach and finally contact the upper and lower sides of the filter screen 21, ensuring the balance of the force on the filter screen 21 in the vertical direction. At the same time, the friction between the annular clamping plate 411 and the filter screen 21 can ensure that the filter screen 21 does not shift during the rotation of the filter screen 21, thereby ensuring the stability of the filter screen 21 during flipping.

[0047] Refer to Figure 3 、 Figure 7 and Figure 9 As shown in, the flipping mechanism 4 further includes a fixed-axis flipping structure 42. The fixed-axis flipping structure 42 includes a second rotating shaft 421. The second rotating shaft 421 is rotatably connected to the side wall of the filter box 1. Connecting frames 422 for connecting the second driving component 412 and a fixing frame 423 for fixing its own axis are respectively arranged at both ends of the second rotating shaft 421. A third rotary driver 424 is arranged on one side of the second rotating shaft 421.

[0048] After the clamping structure 41 clamps the filter net 21, the fixed-axis flipping structure 42 operates. The third rotary driver 424 is activated to drive the second rotating shaft 421 to rotate. Due to the action of the connecting frame 422, the rotation of the second rotating shaft 421 drives the clamping structure 41 and the filter net 21 it clamps to rotate integrally by 180 degrees. This flipping action ensures that during the cleaning process of the filter net 21, the upper and lower surfaces of the filter net 21 can be exchanged. The solid impurities originally on the upper surface of the filter net 21 can fall off more easily after flipping. After the cleaning process is over, the fixed-axis flipping structure 42 is activated again, and the third rotary driver 424 drives the second rotating shaft 421 to rotate reversely by 180 degrees to restore the filter net 21 to its initial state, that is, the original upper surface of the filter net 21 faces upward. By flipping the filter net 21, the upper surface of the filter net 21 that was originally difficult to clean is exposed, thus ensuring that the filter net 21 can be cleaned comprehensively during the cleaning process and avoiding the accumulation of solid impurities on the surface of the filter net 21.

[0049] Refer to Figure 3 and Figure 10 As shown: On one side of the filter net 21 connected to the connecting rod 22, there is a plug rod 211. A limit block 212 is provided at the end of the plug rod 211. Slots 221 corresponding to the plug rod 211 are opened along the axial direction at both ends of the connecting rod 22. A limit groove 222 corresponding to the limit block 212 is provided at the end of the slot 221.

[0050] Since the filter net 21 is connected to the connecting rod 22, if the filter net 21 in the cleaning position rotates, the filter net 21 in the working position will also rotate. Therefore, a plug rod 211 is provided on one side of the filter net 21, and a limit block 212 is provided at the end of the plug rod 211. Slots 221 are provided at both ends of the connecting rod 22, and a limit groove 222 is provided at the end of the slot 221. Before the fixed-axis flipping structure 42 operates, the filter net 21 in the cleaning position and the connecting rod 22 undergo relative displacement, the plug rod 211 slides in the slot 221, and at the same time, the limit block 212 disengages from the originally engaged limit groove 222, releasing the rotational constraint of the filter net 21 relative to the connecting rod 22, enabling the plug rod 211 to rotate relative to the connecting rod 22. Then the fixed-axis flipping structure 42 is activated, and the fixed-axis flipping structure 42 flips the filter net 21 by 180 degrees, and then inserts the limit block 212 into the fixing groove 3321. At this time, the filter net 21 cannot rotate, thus realizing the ability of the filter net 21 to flip independently and effectively preventing the filter nets 21 at both ends of the connecting rod 22 from moving synchronously.

[0051] Refer to Figure 3 and Figure 10 As shown: The filter assembly 2 further includes two magnetic attraction components 23. The two magnetic attraction components 23 are respectively arranged at the bottoms of the two slots 221. The magnetic attraction components 23 are used to adsorb the plug rod 211 in the slot 221.

[0052] Specifically, the magnetic attraction assembly 23 includes two magnets, which are respectively arranged at the end of the insertion rod 211 and the bottom of the corresponding slot 221.

[0053] Although the combination of the limiting block 212 and the limiting groove 222 can effectively restrict the rotational movement of the filter net 21, the combination of the limiting block 212 and the limiting groove 222 has limited restraining ability in the axial direction of the connecting rod 22. When the switching mechanism 3 adjusts the positions of the two filter nets 21, affected by vibration and inertia, the filter net 21 may move along the axial direction of the connecting rod 22 relative to the connecting rod 22. By providing two magnetic attraction assemblies 23, the two magnets in the magnetic attraction assembly 23 have opposite magnetic polarities, so that the bottom of the slot 221 generates a suction force on the end of the insertion rod 211, effectively adsorbing the insertion rod 211 inside the slot 221, thereby preventing the insertion rod 211 on the filter net 21 from slipping out of the slot 221 during the movement.

[0054] Refer to Figure 3 and Figure 11 As shown: The cleaning assembly 51 includes a cleaning cover 511 and a collection cover 512. A water supply pipe 5111 is arranged on the cleaning cover 511. The collection cover 512 is used to guide waste water and impurities to flow towards the collection assembly 52. The collection assembly 52 includes a collection box 521 and a barrier net 522. The collection box 521 is arranged at the lower end of the cleaning position of the filtering assembly 2, and the barrier net 522 is arranged inside the collection box 521.

[0055] When the filter net 21 moves to the cleaning position, the cleaning cover 511 is connected to the annular clamping plate 411 located at the lower end of the filter net 21, and the collection cover 512 is connected to the annular clamping plate 411 located at the upper end of the filter net 21. When the two annular clamping plates 411 clamp the filter net 21, the cleaning cover 511 and the collection cover 512 move synchronously towards the filter net 21. At this time, the cleaning cover 511 is located at the lower end of the filter net 21, and the collection cover 512 is located at the upper end of the filter net 21. Then the fixed-axis flipping structure 42 is activated, and the two annular clamping plates 411 drive the cleaning cover 511 and the collection cover 512 to rotate synchronously, so that the cleaning cover 511 is at the upper end of the filter net 21, and the collection cover 512 is located at the lower end of the filter net 21. The cleaning water flows along the water supply pipe 5111 to the cleaning cover 511, and then impacts on the filter net 21. The solid impurities and waste water on the filter net 21 flow along the collection cover 512 towards the collection box 521. The barrier net 522 in the collection box 521 intercepts the solid impurities again, and the waste liquid is input into the corresponding space in the treatment box, thereby ensuring the effective separation and collection of waste water and solid impurities and preventing the solid impurities from flowing into the treatment box.

[0056] The above embodiments merely represent one or several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A waste liquid classification and treatment device for food testing, a filtering mechanism arranged between a funnel and a processing box, a detection mechanism arranged between the processing box and the filtering mechanism, characterized in that: The filtering mechanism comprises a filtering box (1), a filtering assembly (2), a switching mechanism (3), two turning mechanisms (4) and two cleaning structures (5); The filter assembly (2) is arranged inside the filter box (1); when the filter assembly (2) is at the lower end of the funnel, the filter assembly (2) is in a working position; when the filter assembly (2) is at the cleaning mechanism, the filter assembly (2) is in a cleaning position; the filter assembly (2) comprises two filter screens (21) and a connecting rod (22) connecting the two filter screens (21); when one of the filter screens (21) is in the working position, the other filter screen (21) is in the cleaning position; The switching mechanism (3) is used to drive the filter assembly (2) to switch between a working position and a cleaning position, and the switching mechanism (3) comprises a mounting plate (31) for fixing the connecting rod (22) and a horizontal moving structure (32) for driving the mounting plate (31) to move between two cleaning structures (5); Two flipping mechanisms (4) are respectively arranged at two ends of the filter box (1), and the flipping mechanisms (4) are used to flip the filter assembly (2) 180 degrees at the cleaning position; The two cleaning structures (5) correspond to the two turning mechanisms (4) respectively. The cleaning structure (5) comprises a cleaning component (51) and a collecting component (52). The collecting component (52) is used to collect cleaned impurities and waste liquid, and guide the waste liquid to a corresponding space in the processing box.

2. A device for classifying and treating waste liquid for food testing according to claim 1, characterized in that: The switching mechanism (3) further comprises a fixed-axis switching structure (33) arranged in the middle of the mounting plate (31), the fixed-axis switching structure (33) comprising a first rotating shaft (331) rotatably connected to the mounting plate (31), a fixing block (332) connected to the connecting rod (22) being arranged at the upper end of the first rotating shaft (331), and a first driving assembly (333) for driving the first rotating shaft (331) to rotate being arranged at the lower end of the first rotating shaft (331).

3. A food testing waste liquid classification and treatment device according to claim 2, characterized in that: The fixed-axis switching structure (33) further comprises two fixed structures (334) arranged on both sides of the fixed block (332), and the fixed structure (334) comprises a fixed clamping block (3341) and a second linear drive (3342); The middle part of the fixed block (3341) is movably connected to the mounting plate (31); The second linear drive (3342) is arranged at the lower end of the mounting plate (31), and the second linear drive (3342) is connected to the fixed clamping block (3341).

4. A device for classifying and treating waste liquid for food testing according to claim 3, characterized in that: Two fixing grooves (3321) are provided on the side wall of the fixing block (332) and are respectively connected to the two fixing clamping blocks (3341).

5. The device for classifying and treating waste liquid for food testing according to claim 1, characterized in that: The turning mechanism (4) comprises a clamping structure (41) for clamping the filter screen (21), and the clamping structure (41) comprises two annular clamping plates (411) and a second driving component (412) for driving the two annular clamping plates (411) to move towards or in opposite directions.

6. A device for classifying and treating waste liquid for food testing according to claim 5, characterized in that: The turning mechanism (4) further comprises a fixed-axis turning structure (42), the fixed-axis turning structure (42) comprising a second rotating shaft (421), the second rotating shaft (421) being rotatably connected to the side wall of the filter box (1), a connecting frame (422) connected to the second drive assembly (412) and a fixing frame (423) for fixing the axis of the second rotating shaft (421) being respectively arranged at both ends of the second rotating shaft (421), and a third rotating driver (424) being arranged on one side of the second rotating shaft (421).

7. The device for classifying and treating waste liquid for food testing according to claim 1, characterized in that: An insertion rod (211) is provided on one side of the filter screen (21) connected to the connecting rod (22); a limiting block (212) is provided at the end of the insertion rod (211); slots (221) corresponding to the insertion rod (211) are provided at both ends of the connecting rod (22) along the axial direction; and limiting grooves (222) corresponding to the limiting block (212) are provided at the end of the slots (221).

8. The device for classifying and treating waste liquid for food testing according to claim 7, characterized in that: The filter assembly (2) further comprises two magnetic assemblies (23), the two magnetic assemblies (23) being respectively arranged at the bottom of the two slots (221), and the magnetic assemblies (23) being used to adsorb the insertion rod (211) into the slot (221).

9. The device for classifying and treating waste liquid for food testing according to claim 1, characterized in that: The cleaning component (51) comprises a cleaning cover (511) and a collecting cover (512); a water supply pipe (5111) is arranged on the cleaning cover (511); the collecting cover (512) is used to guide waste water and impurities to flow toward the collecting component (52); the collecting component (52) comprises a collecting box (521) and a barrier net (522); the collecting box (521) is arranged at the lower end of the cleaning position of the filter component (2); and the barrier net (522) is arranged inside the collecting box (521).

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