Funnel filter paper folder

Abstract

The utility model provides a funnel filter paper folder, and relates to the technical field of grain and oil inspection. The funnel filter paper folder comprises a base, the base is provided with a folding cavity and an opening communicated with the folding cavity, a plurality of first protrusions are arranged on the inner wall of the base, the first protrusions are radially distributed in the direction from one end of the base to the opening along the inner wall, and an inner concave part is formed between every two adjacent first protrusions; the folder cone comprises a folding head, the shape and the size of the folding head are matched with those of the folding cavity, the folding head is provided with a plurality of second protrusions, and the second protrusions are matched with the inner concave parts. Multiple folding of the filter paper can be achieved through one-time operation, the folding process is simplified, and time is saved. And the second bulge on the folder cone is matched with the inner concave part on the inner wall of the base, so that the folding position and the folding depth of the filter paper can be accurately controlled, and the folded filter paper has uniform folds and a stable structure.

Description

Technical Field

[0001] This utility model relates to the field of grain and oil inspection technology, and in particular to a funnel filter paper folding device. Background Technology

[0002] In the field of grain and oil inspection technology, fatty acid value is a key indicator of the quality of grains such as rice and corn, and its accurate measurement is crucial for ensuring grain quality.

[0003] The current national standard method for determining fatty acids involves extracting free fatty acids with anhydrous ethanol, filtering impurities through filter paper, and then titrating the filtrate with a potassium hydroxide standard solution to quantify the fatty acid value. However, the filter paper folding step in this process has shortcomings. For example, manual folding is not only slow and labor-intensive, but also time-consuming and inefficient.

[0004] More importantly, the uniformity of manual folding is difficult to guarantee. Uneven folding will directly affect the filtration effect of the filtrate, thus interfering with the accurate determination of fatty acid values. In view of the above problems, developing a high-efficiency and uniform funnel filter paper folder has become an urgent problem to be solved in the field of grain and oil quality inspection. Utility Model Content

[0005] This invention provides a funnel filter paper folder to solve the problem that the existing technology requires multiple manual folding of filter paper, which is not only inefficient but also easily affected by human factors, resulting in unstable results and thus affecting the accuracy of test results.

[0006] This utility model provides a funnel filter paper folder, including a base, the base having a folding cavity and an opening communicating with the folding cavity, and a plurality of first protrusions provided on the inner wall of the base, the first protrusions being radially distributed along the inner wall toward the opening with one end of the base as the apex, and an inner recess being formed between each pair of first protrusions.

[0007] A folding cone, the folding cone including a folding head whose shape and size are adapted to the folding cavity, the folding head having a plurality of second protrusions adapted to the recess.

[0008] According to one embodiment of the present invention, the first protrusion is a triangular pyramid, the bottom surface of the first protrusion is connected to the base, and the vertex of the first protrusion is located on the side close to the opening.

[0009] According to one embodiment of the present invention, the two adjacent sides of the first protrusion have the same area and the included angle is 90°.

[0010] According to one embodiment of the present invention, the shape of the side of the first protrusion is an isosceles triangle.

[0011] According to one embodiment of the present invention, eight first protrusions are evenly arranged on the inner wall of the base.

[0012] According to one embodiment of the present invention, the diameter of the opening is 5-15cm.

[0013] According to one embodiment of the present invention, the angle between the inner wall of the base and the horizontal plane is 45-75°.

[0014] According to one embodiment of the present invention, the vertical distance from the apex of the first protrusion to the bottom surface of the first protrusion is 1-3 cm.

[0015] According to one embodiment of the present invention, the distance from the opening to the bottom of the folded cavity is 5-15cm.

[0016] According to one embodiment of the present invention, the folding cone further includes a handle, which is connected to the folding head.

[0017] The funnel-shaped filter paper folder provided by this utility model allows for multiple folds of filter paper in a single operation, simplifying the folding process and saving time. The second protrusion on the folder cone engages with the recessed portion on the inner wall of the base, precisely controlling the folding position and depth of the filter paper, resulting in uniform creases and a stable structure. This precise folding method helps ensure that the filter paper effectively traps impurities during filtration, improving filtration efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is one of the structural schematic diagrams of the base provided by this utility model.

[0020] Figure 2 This is the second structural schematic diagram of the base provided by this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the folding cone provided by this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the first protrusion provided by this utility model.

[0023] Figure label:

[0024] 10. Base; 110. Folding cavity; 120. Opening; 130. First protrusion; 1310. Bottom surface; 1320. Vertex; 1330. Side; 140. Concave part; 20. Folder cone; 210. Folding head; 2110. Second protrusion; 220. Handle. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0028] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0030] The following is combined with Figures 1 to 4 The present invention provides a detailed description of a funnel filter paper folder through specific embodiments and application scenarios.

[0031] The funnel filter paper folder includes: a base 10, which has a folding cavity 110 and an opening 120 communicating with the folding cavity 110. The inner wall of the base 10 is provided with a plurality of first protrusions 130, which are radially distributed along the inner wall toward the opening 120 with one end of the base 10 as the apex 1320. A concave portion 140 is formed between two adjacent first protrusions 130; and a folder cone 20, which includes a folding head 210. The shape and size of the folding head 210 are adapted to the folding cavity 110. The folding head 210 has a plurality of second protrusions 2110, which are adapted to the concave portion 140.

[0032] Understandably, when filter paper needs to be folded, the filter paper is laid flat into the folding cavity 110 within the base 10. Then, the tip of the folding cone 20 is aligned with the center point of the filter paper, and a downward force is applied vertically to the folding head 210. At this time, the filter paper adheres to the inner wall of the base 10 as it is squeezed by the folding head 210. Once the second protrusion 2110 and the concave portion 140 engage, the filter paper deforms and produces creases. After the filter paper has set, the folding cone 20 is removed and moved in the opposite direction to remove the filter paper from the folding cavity 110, completing the folding operation. Through the funnel filter paper folder provided by this embodiment, the filter paper does not need to be folded beforehand, simplifying the filter paper folding process. This allows the filter paper to achieve the effect of multiple folds in a single operation within the folder, saving time. The folded filter paper has a relatively uniform quality, effectively filters impurities, and can also effectively improve the filtration speed of the extract.

[0033] Traditional filter paper folding methods may require multiple manual folds, which is cumbersome and time-consuming. This funnel-shaped filter paper folder, however, allows for multiple folds in a single operation, greatly simplifying the folding process and saving time. Using the folder ensures even stress on the filter paper during folding, avoiding unevenness or irregularities that can occur with manual folding. This not only improves folding efficiency but also guarantees the quality of the folded filter paper. The second protrusion 2110 on the folder cone 20 cooperates with the recess 140 on the inner wall of the base 10, precisely controlling the folding position and depth of the filter paper, resulting in uniform creases and a stable structure. This precise folding method helps ensure that the filter paper effectively traps impurities during filtration, improving filtration efficiency. Because the folded filter paper has a more complex structure, its surface area increases, thereby increasing the filtration area. This helps accelerate the filtration speed of the extract while ensuring filtration quality. Furthermore, uniform folding reduces the risk of filter paper breakage during filtration, extending its service life. The folder provided in this embodiment has a relatively simple structure and is easy to operate and maintain. After use, each component can be easily disassembled and cleaned to ensure hygiene and accuracy for the next use.

[0034] In some embodiments, such as Figure 1 and Figure 2 As shown, eight first protrusions 130 are evenly arranged on the inner wall of the base 10. This funnel-shaped filter paper folder allows the filter paper to have at least 16 folded surfaces in a single operation. Of course, the number of first protrusions 130 on the inner wall of the base 10 and the distance between each first protrusion 130 can be adjusted according to actual needs; that is, the number of first protrusions 130 can be increased or decreased.

[0035] By evenly arranging eight first protrusions 130 on the inner wall of the base 10, the filter paper can form at least 16 folded surfaces during the folding process. This not only improves folding efficiency but also increases the filtration area of ​​the filter paper, thereby enhancing filtration speed and quality. Each folded surface effectively traps impurities, ensuring the purity of the extract. The number and spacing of the first protrusions 130 on the inner wall of the base 10 can be adjusted according to actual needs, providing users with great flexibility and customizability. The degree of folding and filtration area of ​​the filter paper can be adjusted by increasing or decreasing the number of first protrusions 130 to adapt to different experimental or production needs. This allows the funnel filter paper folder to be widely used in various filtration scenarios, increasing its practical value. The precisely set first protrusions 130 and their corresponding second protrusions 2110 ensure that the filter paper is subjected to uniform force during folding, avoiding problems such as filter paper breakage or uneven folding. This precise folding method helps to form a tighter and more stable filter paper structure, thereby improving filtration efficiency and retention capacity.

[0036] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, the first protrusion 130 is a triangular pyramid, with its base 1310 connected to the base 10, and its vertex 1320 located near the opening 120. The triangular pyramid shape of the first protrusion 130 provides a stable geometric structure, effectively enhancing the strength and stability of the base 10. During the folding of the filter paper, this stable structure can withstand significant pressure without easily deforming or damaging, ensuring smooth folding operations. The pyramidal vertex 1320 can more precisely guide the folding direction of the filter paper, forming more regular and uniform creases. This precise folding effect helps improve the filtration efficiency and retention capacity of the filter paper, ensuring the purity of the extract. Because the pyramidal vertex 1320 is located near the opening 120, the degree of folding and the filtration area of ​​the filter paper can be adjusted by adjusting the force and position applied to the filter paper by the folder cone 20, adapting to different experimental or production needs.

[0037] In some embodiments, such as Figure 4As shown, the two adjacent sides 1330 of the first protrusion 130 have the same area and an included angle of 90°. Because the two adjacent sides 1330 of the first protrusion 130 have the same area and an included angle of 90°, they can apply uniform pressure when folding the filter paper, thus forming more regular and uniform creases. This uniform folding effect helps improve the filtration efficiency and retention capacity of the filter paper, ensuring the purity of the extract. The design of the two adjacent sides 1330 having the same area and an included angle of 90° makes the first protrusion 130 form a stable support structure on the base 10. This structure can withstand greater pressure without easily deforming or being damaged, thus ensuring smooth folding operations. The design of the two adjacent sides 1330 having an included angle of 90° makes the space occupied by the first protrusion 130 on the base 10 more compact and efficient. This helps optimize the overall structure of the folder, making it more compact.

[0038] In some embodiments, such as Figure 4 As shown, the side surface 1330 of the first protrusion 130 is shaped like an isosceles triangle. This isosceles triangle shape allows the first protrusion 130 to better distribute stress under pressure, thus enhancing its structural strength. This helps ensure that the first protrusion 130 is not easily deformed or damaged during the folding of the filter paper, improving the durability and reliability of the folder. The sharp and well-defined vertex 1320 of the isosceles triangle guides the folding direction of the filter paper more precisely. Simultaneously, the isosceles triangle shape also makes the pressure distribution on the filter paper more uniform during folding, contributing to the formation of more regular and uniform creases. This precise folding effect helps improve the filtration efficiency and retention capacity of the filter paper.

[0039] In some embodiments, the diameter of the opening 120 is 5-15 cm. More specifically, the diameter of the opening 120 may be 10 cm. It is understood that the shape of the folding cavity 110 within the base 10 resembles a circular funnel, meaning the cross-section of the folding cavity 110 can be triangular. The diameter of the opening 120, 5-15 cm, allows the funnel filter paper folder to accommodate filter papers of different sizes. This not only improves the versatility and flexibility of the folder but also allows users to select different sizes of filter paper for folding as needed, thereby meeting different experimental or production requirements. The shape of the folding cavity 110, resembling a circular funnel with a triangular cross-section, allows the filter paper to gradually shrink and tightly adhere to the inner wall of the folding cavity 110 during the folding process. This not only helps to form more regular and uniform creases but also improves the utilization of the folding space, allowing the filter paper to fully unfold and fold into the desired shape. Due to the reasonable design of the folding cavity 110, the filter paper can move and fold more smoothly during the folding process. This helps to reduce resistance and friction during the folding process, improving folding efficiency. At the same time, it also helps reduce the risk of filter paper breakage and ensures the quality of the folded filter paper.

[0040] In some embodiments, the distance from the opening 120 to the bottom of the folding cavity 110 is 5-15 cm. More specifically, the distance from the opening 120 to the bottom of the folding cavity 110 is 10 cm. This moderate distance allows the filter paper to fully unfold and fold to the desired depth during the folding process. This design not only helps to form more regular and uniform creases but also improves the filtration efficiency and retention capacity of the folded filter paper. The reasonable folding depth design makes the internal space of the folding cavity 110 more spacious, facilitating easy cleaning and maintenance of the folder after use. Through simple disassembly and cleaning, users can ensure the hygiene and accuracy of the folder.

[0041] In some embodiments, such as Figure 2 As shown, the angle between the inner wall of the base 10 and the horizontal plane is 45-75°. More specifically, the angle between the inner wall of the base 10 and the horizontal plane is 60°. This moderate angle allows the filter paper to adhere optimally to the inner wall of the folding cavity 110 during the folding process. This not only helps to form more regular and uniform creases but also improves the filtration efficiency and retention capacity of the folded filter paper. The angle design allows the filter paper to adhere more stably to the base 10 during folding, reducing wobbling and misalignment. This helps improve folding stability, ensuring that the folded filter paper has a regular shape and reliable quality.

[0042] In some embodiments, such as Figure 4 As shown, the vertical distance from the apex 1320 of the first protrusion 130 to its bottom surface 1310 is 1-3 cm. More specifically, the vertical distance from the apex 1320 to its bottom surface 1310 is 2 cm. This moderate vertical distance allows the first protrusion 130 to apply appropriate pressure during filter paper folding, preventing excessive pressure that could damage the filter paper or excessive looseness that would result in poor folding. This helps to form regular, uniform creases, improving the filter paper's filtration efficiency and retention capacity. The moderate vertical distance also allows the first protrusion 130 to better support the filter paper during folding, reducing its movement and misalignment. This contributes to improving the structural stability of the folder and ensuring a smooth folding process.

[0043] The first protrusion 130 can have the same shape and size as the second protrusion 2110. When the first protrusion 130 and the second protrusion 2110 have the same shape and size, they can fit together more precisely, resulting in more uniform and stable creases when folding the filter paper. This precise fit helps prevent misalignment or deformation of the filter paper during folding, ensuring the quality of the folded filter paper. Because the first protrusion 130 and the second protrusion 2110 have the same shape and size, the design of the folder and folder cone 20 is simpler and more uniform. During manufacturing, the same molds or tools can be used to process these protrusions, reducing production costs and manufacturing cycle time. When the first protrusion 130 and the second protrusion 2110 have the same shape and size, their fit will be tighter and more reliable. This means that folders and folder cones 20 from different batches or models can be more easily interchanged and compatible, providing users with greater flexibility and convenience. Due to the precise fit of the first protrusion 130 and the second protrusion 2110, the filter paper can experience a more uniform and stable pressure distribution during folding. This helps to form a more regular and uniform fold surface, thereby improving the filtration efficiency and retention capacity of the filter paper.

[0044] In some embodiments, such as Figure 3 As shown, the folding cone 20 also includes a handle 220, which is connected to the folding head 210. The addition of the handle 220 makes it more convenient and effortless for the user to operate the folding cone 20. The user can apply force by gripping the handle 220, without having to directly grip the folding head 210, which not only reduces hand fatigue but also improves the stability and accuracy of operation. Without the handle 220, during the folding of filter paper, the user might come into contact with sharp edges or points by directly gripping the folding head 210, increasing the risk of injury. The handle 220 effectively isolates these potentially dangerous areas, protecting the user's safety. The folding cone 20 with the handle 220 is more convenient to carry and store. The user can easily lift or move the folding cone 20 using the handle 220 without worrying about it slipping or getting damaged. Simultaneously, the handle 220 can also serve as a hanging point, making it convenient to hang the folding cone 20 on a wall or shelf, saving space and keeping it tidy. The addition of the handle 220 does not mean that the folding device provided in this embodiment can only be used manually.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A funnel filter paper folder, characterized in that, include: The base has a folding cavity and an opening communicating with the folding cavity. A plurality of first protrusions are provided on the inner wall of the base. The first protrusions are radially distributed along the inner wall toward the opening, with one end of the base as the vertex. A concave portion is formed between two adjacent first protrusions. A folding cone, the folding cone including a folding head whose shape and size are adapted to the folding cavity, the folding head having a plurality of second protrusions adapted to the recess.

2. The funnel filter paper folder according to claim 1, characterized in that, The first protrusion is a triangular pyramid, the bottom surface of the first protrusion is connected to the base, and the vertex of the first protrusion is located on the side close to the opening.

3. The funnel filter paper folder according to claim 2, characterized in that, The two adjacent sides of the first protrusion have the same area and an included angle of 90°.

4. The funnel filter paper folder according to any one of claims 1 to 3, characterized in that, The side of the first protrusion is an isosceles triangle.

5. The funnel filter paper folder according to any one of claims 1 to 3, characterized in that, The base has eight of the first protrusions evenly distributed on its inner wall.

6. The funnel filter paper folder according to any one of claims 1 to 3, characterized in that, The diameter of the opening is 5-15cm.

7. The funnel filter paper folder according to any one of claims 1 to 3, characterized in that, The angle between the inner wall of the base and the horizontal plane is 45-75°.

8. The funnel filter paper folder according to claim 2 or 3, characterized in that, The vertical distance from the apex of the first protrusion to the bottom surface of the first protrusion is 1-3 cm.

9. The funnel filter paper folder according to any one of claims 1 to 3, characterized in that, The distance from the opening to the bottom of the folded cavity is 5-15cm.

10. The funnel filter paper folder according to claim 1, characterized in that, The folding cone also includes a handle connected to the folding head.

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