Pretreatment equipment for detecting additives in food
By using a rotating rod and scraper to clean the residue on the filter screen in food testing equipment, the problem of food residue affecting the accuracy of testing is solved, achieving efficient separation of mixed liquids and accurate testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-03-13
AI Technical Summary
Directly extracting the extract after mixing food residue with the test solution can affect the accuracy of the test results.
Design a pretreatment device for detecting additives in food, comprising a funnel and a filter screen, equipped with a rotating rod and a scraper for separating food residue and mixture. The rotating rod drives the scraper to clean the residue on the filter screen, thus preventing clogging.
It improves the separation efficiency of the mixture and food residue, reduces filter clogging, and ensures the accuracy of extract detection.
Smart Images
Figure CN223992745U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food testing technology, specifically to pretreatment equipment for detecting additives in food. Background Technology
[0002] Before testing the additive content in food, the food must first be crushed and thoroughly mixed with the test solution to form a mixture. Then, an extract is extracted from the mixture and sent to a testing device to test the additive content.
[0003] Since food residue is mixed with the test solution, if the extract is extracted directly, the extract will inevitably contain food residue, which can easily affect the accuracy of the test results during the testing process. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a pretreatment device for the detection of additives in food, so as to solve the problem that when food residue is present in the mixture of food residue and detection liquid, directly extracting the extract for detection can easily affect the accuracy of the detection results.
[0005] This utility model is achieved through the following technical solution:
[0006] A pretreatment device for detecting additives in food includes a funnel connected to a container for collecting a mixture. The funnel is provided with a filter screen for separating food residue and the mixture. The funnel is also provided with a cleaning assembly for cleaning food residue adhering to the filter screen. The cleaning assembly includes a rotating rod and a plurality of scrapers evenly distributed around the rotating rod. The rotating rod is connected to a drive member and rotatably mounted in the funnel. The scrapers extend along the length of the distance between the rotating rod and the funnel. The food residue on the filter screen is located on the rotation trajectory of the scrapers.
[0007] Further defined, the funnel portion includes an outer funnel and an inner funnel whose lower end is inserted into the outer funnel, wherein the bottom surface of the upper edge of the inner funnel abuts against the top surface of the upper edge of the outer funnel.
[0008] A gap is formed between the inner wall of the outer funnel and the outer wall of the inner funnel, and the gap is located above the outermost edge of the scraper's rotation trajectory.
[0009] Furthermore, the inner funnel has a reflux hole at its upper end along its thickness direction, and the two ends of the reflux hole are respectively connected to the gap and the interior of the inner funnel.
[0010] Further defined, the lower ends of the inner funnel and the outer funnel extend vertically downward to form a first cylinder and a second cylinder, respectively. The first cylinder is provided with an mounting plate and a connecting strip. The bottom surface of the mounting plate is rotatably connected to the top surface of the rotating rod. The two ends of the connecting strip are respectively connected to the side wall of the mounting plate and the inner wall of the first cylinder.
[0011] Further, the filter screen is provided with a downwardly extending groove, the groove is located below the outermost edge of the scraper rotation trajectory, and the inner wall of the groove is provided with a through hole that connects the groove to the container.
[0012] Further defining the driving component, the driving component includes a plurality of impeller blades evenly distributed around the rotating rod as the axis, with the end of the impeller blades away from the rotating rod extending toward the inner wall of the first cylinder, the impeller blades being located above the scraper, and the plurality of impeller blades being inclinedly arranged.
[0013] Furthermore, the filter screen is slidably engaged with the first cylinder, and the filter screen can slide along the extending direction of the first cylinder;
[0014] The cleaning assembly includes a fixed plate connected to the first cylinder and an insert rod disposed on the top surface of the fixed plate. The fixed plate is located below the filter screen, and an elastic support member for supporting the filter screen is disposed between the fixed plate and the filter screen. The insert rod is located on the sliding trajectory of the filter screen and can penetrate the filter holes on the filter screen.
[0015] Further, the fixing plate has a first through hole running vertically through its surface, and the top surface of the insertion rod has a second through hole running vertically through its surface, the second through hole penetrating the fixing plate.
[0016] Further specified, the bottom surface of the outer edge of the inner funnel is provided with an annular body, and the outer edge of the outer funnel is provided with an annular groove with a diameter equal to that of the annular body.
[0017] Further specifying, the upper end of the inner funnel is provided with a handle, the handle includes two fixed rods connected to both ends of the inner funnel and a connecting rod located between the two fixed rods, the two ends of the connecting rod being connected to the two fixed rods respectively.
[0018] The beneficial effects of this utility model are as follows:
[0019] When food residue on the filter screen easily clogs the filter holes, a rotating rod can be used to rotate the scraper, creating a circular rotation trajectory. Food residue located on this circular rotation trajectory is pushed away by the rotating scraper, with one side of the scraper contacting the food residue. As the scraper continues to rotate, it pushes the food residue away, preventing it from accumulating on the filter screen and clogging it. This reduces the efficiency of separating the mixture from the food residue.
[0020] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention;
[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0024] Figure 4 This is a schematic diagram of the structure of the outer funnel and inner funnel of this utility model when they are separated;
[0025] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model.
[0026] In the picture:
[0027] 1. Funnel section; 101. Outer funnel; 1011. Second cylinder; 102. Inner funnel; 1021. First cylinder; 2. Filter screen; 3. Cleaning assembly; 301. Rotating rod; 302. Scraper; 303. Fixing plate; 304. Insert rod; 4. Backflow hole; 5. Mounting plate; 501. Connecting strip; 6. Groove; 7. Impeller blade; 8. Ring body; 801. Ring groove; 9. Handle; 10. Elastic support. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.
[0033] Please see Figure 1-5 This utility model provides a technical solution: a pretreatment device for detecting additives in food, including a funnel part 1 connected to a container for collecting a mixture. The funnel part 1 is provided with a filter screen 2 for separating food residue and the mixture. The funnel part 1 is also provided with a cleaning component 3 for cleaning the food residue attached to the filter screen 2. The cleaning component 3 includes a rotating rod 301 and a plurality of scrapers 302 evenly distributed around the rotating rod 301. The rotating rod 301 is connected to a driving component and is rotatably installed in the funnel part 1. The scrapers 302 extend along the distance between the rotating rod 301 and the funnel part 1. The food residue on the filter screen 2 is located on the rotation trajectory of the scrapers 302.
[0034] In this scheme, the lower end of the funnel 1 can be connected to the container via a flange or connecting pipe, and the filter screen 2 is located between the outlet of the funnel 1 and the inlet of the container. Thus, the mixture containing food residue that enters through the funnel 1 must be filtered through the filter screen before entering the container. The filter screen 2 removes the food residue in the mixture, thereby improving the accuracy of subsequent detection of the extract.
[0035] During the filtration process, when food residue on the filter screen 2 easily clogs the filter holes, the rotating rod 301 can be rotated to drive the scraper 302 to rotate, forming a circular rotation trajectory. Food residue located on this circular rotation trajectory is pushed by the rotating scraper 302, with one side of the scraper 302 adhering to the food residue. As the scraper 302 continues to rotate, it pushes the food residue, making it less likely for food residue to accumulate on the filter screen 2, thereby reducing the possibility of food residue accumulating on the filter screen 2 and clogging the top of the filter screen 2, and thus improving the efficiency of separating the mixture and food residue.
[0036] In this embodiment, the funnel part 1 includes an outer funnel 101 and an inner funnel 102 whose lower end is inserted into the outer funnel 101. The bottom surface of the upper edge of the inner funnel 102 abuts against the top surface of the upper edge of the outer funnel 101.
[0037] A gap is formed between the inner wall of the outer funnel 101 and the outer wall of the inner funnel 102, and the gap is located above the outermost edge of the rotation trajectory of the scraper 302.
[0038] In this design, when the scraper 302 rotates and pushes the food residue, the centrifugal force easily causes the food residue to move away from the rotating rod 301, that is, the food residue moves towards the bottom of the gap. As the mixture containing the food residue is continuously fed in, the amount of food residue increases, and more and more food residue accumulates on the filter plate. Therefore, by pushing the food residue to the bottom of the gap and allowing it to accumulate and enter the gap, a temporary storage effect is achieved for the food residue.
[0039] The operator can determine whether to stop the operation of the device based on factors such as running time, accumulated food residue, and amount of pre-treated mixture. After stopping, the inner funnel 102 is lifted upward to separate the inner funnel 102 from the outer funnel 101, and the food residue separated on the outer funnel 101 is collected.
[0040] In this embodiment, the inner funnel 102 has a backflow hole 4 at its upper end along its thickness direction, and the two ends of the backflow hole 4 are respectively connected to the gap and the interior of the inner funnel 102.
[0041] In this solution, as more and more food residue accumulates in the gap, it becomes flush with the reflux hole 4. Since the two ends of the reflux hole 4 are connected to the gap and the inside of the inner funnel 102 respectively, the food residue will re-enter the inner funnel 102 through the reflux hole 4, thereby prolonging the continuous operation of this application.
[0042] In this embodiment, the lower ends of the inner funnel 102 and the outer funnel 101 extend vertically downward to form a first cylinder 1021 and a second cylinder 1011, respectively. The first cylinder 1021 is provided with an mounting plate 5 and a connecting strip 501. The bottom surface of the mounting plate 5 is rotatably connected to the top surface of the rotating rod 301. The two ends of the connecting strip 501 are respectively connected to the side wall of the mounting plate 5 and the inner wall of the first cylinder 1021.
[0043] In this design, the gap between the first cylinder 1021 and the second cylinder 1011 extends vertically. Simultaneously, the length of the first cylinder 1021 is less than the length of the second cylinder 1011, thus the gap communicates with the interior of the first cylinder 1021, allowing food residue to enter the gap. The outer funnel 101 can be connected to the container's inlet via the extended second cylinder 1011.
[0044] The rotating rod 301 is fixedly connected to the first cylinder 1021 through the mounting plate 5 and the connecting strip 501, which effectively improves the stability of the rotating rod 301 when it rotates.
[0045] In this embodiment, the filter screen 2 is provided with a groove 6, which is located below the rotation trajectory of the scraper 302. The inner wall of the groove 6 is provided with a through hole that connects the groove 6 to the container.
[0046] In this design, the scraper 302 rotates clockwise or counterclockwise, pushing the food residue to move synchronously in the same direction as its rotation. As the food residue is pushed by the scraper 302 to the top of the groove 6, it falls into the groove 6 under the influence of gravity, thus collecting the food residue and further reducing clogging of the filter pores on the filter screen 2. The mixed liquid entering the groove 6 enters the container through the through-holes on the side wall of the groove 6.
[0047] In this embodiment, the driving component includes a plurality of impeller blades 7 evenly distributed around the rotating rod 301 as the axis. The end of the impeller blade 7 away from the rotating rod 301 extends toward the inner wall of the first cylinder 1021. The impeller blade 7 is located above the scraper 302, and the plurality of impeller blades 7 are arranged at an angle.
[0048] In this design, the driving component serves as the power source for the rotating rod 301, causing it to rotate. This, in turn, drives the scraper 302 to rotate on the top surface of the filter screen 2. The end of the scraper 302 is nearly in contact with the inner wall of the first cylinder 1021, allowing it to fully contact the mixture flowing through the first cylinder 1021. The water flow in the mixture, in conjunction with the scraper 302, drives the rotating rod 301 to rotate.
[0049] Furthermore, to better achieve the aforementioned effects, operators can even replace the impeller 7 with a motor for transmission connection to the rotating rod 301. Compared to a motor, the impeller 7 reduces power consumption and lowers the operating cost of the device; the motor, compared to the impeller 7, offers greater stability.
[0050] In this embodiment, the bottom surface of the inner funnel 102 is provided with an annular body 8, and the outer edge of the outer funnel 101 is provided with an annular groove 801 with the same diameter as the annular body 8.
[0051] In this design, since the inner funnel 102 and the outer funnel 101 are detachably connected by an upper and lower insertion method, during the connection process, the ring body 8 is located in the annular groove 801. This method of embedding the ring body 8 in the annular groove 801 limits the connection between the inner funnel 102 and the outer funnel 101, thereby improving the stability of the connection. Simultaneously, since the cross-sections of the ring body 8 and the annular groove 801 are circular, the inner funnel 102 can rotate during the connection.
[0052] In this embodiment, the upper end of the inner funnel 102 is provided with a handle 9. The handle 9 includes two fixed rods connected to both ends of the inner funnel 102 and a connecting rod located between the two fixed rods. The two ends of the connecting rod are respectively connected to the two fixed rods.
[0053] In this design, the connecting rod is positioned laterally at the inlet of the inner funnel 102, allowing the operator to grip the connecting rod and lift the inner funnel 102, thereby separating the inner funnel 102 from the outer funnel 101.
[0054] The difference between Embodiment 2 and Embodiment 1 is that the filter screen 2 is slidably engaged with the first cylinder 1021, and the filter screen 2 can slide along the extending direction of the first cylinder 1021;
[0055] The cleaning assembly 3 includes a fixing plate 303 connected to the first cylinder 1021 and an insert rod 304 disposed on the top surface of the fixing plate 303. The fixing plate 303 is located below the filter screen 2, and an elastic support member (10) for supporting the filter screen 2 is disposed between the fixing plate 303 and the filter screen 2. The insert rod 304 is located on the sliding trajectory of the filter screen 2 and can penetrate the filter holes on the filter screen 2.
[0056] In this scheme, the elastic support (10) pushes the filter screen 2 toward the inlet of the inner funnel 102 when it is in a naturally extended state. When the food residue on the filter screen 2 blocks the filter holes, causing the filter screen 2 to slow down, the input speed of the mixture is constant, while the output speed is reduced due to the influence of the food residue. This results in more and more mixture on the filter screen 2 in the inner funnel 102, and the pressure of the mixture on the filter screen 2 increases, so that the pressure on the filter screen 2 overcomes the elastic force and gradually slides downward.
[0057] When the filter screen 2 slides down to a certain extent, the insert rod 304 gradually inserts into the filter hole and pushes out the food residue in the filter hole, so that the food residue is less likely to clog the filter hole.
[0058] In this embodiment, the surface of the fixing plate 303 has a first through hole running vertically through it, and the top surface of the insertion rod 304 has a second through hole running vertically through it, with the second through hole penetrating the fixing plate 303.
[0059] In this design, the first perforation on the fixed plate 303 allows the mixture filtered by the filter screen 2 to pass through the fixed plate 303 and enter the container. Similarly, the second through hole on the insertion rod 304 also allows the filtered mixture to pass through the insertion rod 304 and enter the container.
[0060] When in use, when the insert rod 304 passes through the filter hole, the top surface of the insert rod 304 is higher than the top surface of the filter screen 2, and there is a certain height difference between the two, so that the mixture on the filter screen 2 can be output to the container through the insert rod 304 and the second through hole. When the mixture on the filter screen 2 gradually decreases, the pressure on the filter screen 2 gradually decreases, and the filter screen 2 resets under the action of elasticity.
[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A pre-treatment apparatus for detecting additives in food, comprising a hopper section (1) connected to a container for collecting a mixed solution, a filter screen (2) for separating food residues and the mixed solution being provided in the hopper section (1), characterized in that: The funnel part (1) is further provided with a cleaning assembly (3) for cleaning food residues attached to the filter screen (2), the cleaning assembly (3) comprises a rotating rod (301) and a plurality of scrapers (302) uniformly distributed around the rotating rod (301), the rotating rod (301) is connected with a driving member and is rotatably installed in the funnel part (1), the scraper (302) extends along the length direction of the interval between the rotating rod (301) and the funnel part (1), and the food residues on the filter screen (2) are located on the rotating track of the scraper (302).
2. The pretreatment apparatus for additive detection in food according to claim 1, characterized by: The funnel part (1) comprises an outer funnel (101) and an inner funnel (102) inserted into the outer funnel (101), and the bottom surface of the upper end of the inner funnel (102) is in abutment with the top surface of the upper end of the outer funnel (101); The interval is formed between the inner wall of the outer funnel (101) and the outer wall of the inner funnel (102), and the interval is located above the outermost side of the rotating track of the scraper (302).
3. The pretreatment apparatus for additive detection in food according to claim 2, characterized by: The inner funnel (102) is provided with a reflux hole (4) along the thickness direction of the upper end thereof, and the two ends of the reflux hole (4) are respectively in communication with the interval and the inside of the inner funnel (102).
4. The pretreatment apparatus for additive detection in food according to claim 2, characterized by: The lower ends of the inner funnel (102) and the outer funnel (101) are respectively vertically extended downward to form a first cylinder (1021) and a second cylinder (1011), the first cylinder (1021) is provided with a mounting plate (5) and a connecting strip (501), the bottom surface of the mounting plate (5) is rotatably connected with the top surface of the rotating rod (301), and the two ends of the connecting strip (501) are respectively connected with the side wall of the mounting plate (5) and the inner wall of the first cylinder (1021).
5. The pretreatment apparatus for additive detection in food according to claim 1, characterized by: The filter screen (2) is provided with a downwardly extending groove (6), the groove (6) is located below the outermost side of the rotating track of the scraper (302), and the inner wall of the groove (6) is provided with a through hole penetrating through the groove (6) and connected with the container.
6. The pretreatment apparatus for additive detection in food according to claim 1, characterized by: The driving member comprises a plurality of impeller blades (7) uniformly distributed around the rotating rod (301) as the shaft, one end of the impeller blade (7) away from the rotating rod (301) extends toward the inner wall of the first cylinder (1021), the impeller blade (7) is located above the scraper (302), and a plurality of the impeller blades (7) are obliquely arranged.
7. The pretreatment apparatus for additive detection in food according to claim 4, characterized by: The filter screen (2) is in sliding fit with the first cylinder (1021), and the filter screen (2) can slide along the extension direction of the first cylinder (1021); The cleaning assembly (3) comprises a fixed plate (303) connected with the first cylinder (1021) and an insertion rod (304) arranged on the top surface of the fixed plate (303), the fixed plate (303) is located below the filter screen (2), and an elastic supporting member (10) for supporting the filter screen (2) is arranged between the fixed plate (303) and the filter screen (2), the insertion rod (304) is located on the sliding track of the filter screen (2), and the insertion rod (304) can penetrate through the filter hole of the filter screen (2).
8. The pretreatment apparatus for additive detection in food according to claim 7, characterized by: First through holes are vertically and penetratingly arranged on the surface of the fixed plate (303), the top surface of the insertion rod (304) is provided with second through holes vertically and penetratingly arranged, and the second through holes penetrate through the fixed plate (303).
9. The pretreatment apparatus for additive detection in food according to claim 2, characterized by: The bottom surface of the outer edge of the inner funnel (102) is provided with a ring (8), and the outer edge of the outer funnel (101) is provided with a ring groove (801) with the same diameter as the ring (8).
10. The pretreatment apparatus for additive detection in food according to claim 9, characterized by: The upper end of the inner funnel (102) is provided with a handle (9), which includes two fixed rods connected with the two ends of the inner funnel (102) and a connecting rod located between the two fixed rods, and the two ends of the connecting rod are connected with the two fixed rods respectively.