Pasty material flattening scraper

Abstract

The invention relates to the field of food baking, in particular to a pasty material flattening scraper which comprises a bottom plate, a pancake stove is fixed to one side of the upper surface of the bottom plate, the upper surface of the pancake stove serves as an operation face, and materials to be processed are placed on the operation face. The transmission shaft is located above the operation face, the center line of the transmission shaft coincides with the center line of the operation face, and a connecting base is fixed to the bottom end of the transmission shaft. The device further comprises a first scraping plate, the first scraping plate is rotationally connected to the connecting base through a connecting assembly, the lower surface of the first scraping plate is an arc-shaped curved surface, the arc-shaped curved surface makes contact with the to-be-treated material or the operation face, the contact intersecting line is a contact line, and the contact line is configured to pass through the center line of the transmission shaft all the time. And the first scraping plate can conduct flattening operation on the uneven surface of the to-be-treated material, it is guaranteed that the thickness of a finished product is uniform, the shape of the finished product is complete, and the cooking quality and the finished product attractiveness are improved.

Description

Technical Field

[0001] This invention relates to the field of food baking technology, specifically to a paste-like material spreading scraper. Background Technology

[0002] When making pancakes, mix flour, eggs, and water into a smooth batter. Pour the batter onto the work surface of the pancake maker and use the first spatula to spread the batter evenly so that it is heated evenly and forms a round, thin pancake of uniform thickness.

[0003] Referring to the existing Chinese patent with publication number CN212697399U, a pancake-making device is disclosed. A main shaft, crossbeam, and column serve as external supports for a rocker arm. The rocker arm rotates, causing a first scraper connected to it to rotate and spread the batter evenly. The thickness of the pancake is controlled by adjusting the distance between the first scraper and the work surface. During the batter spreading process, when the water in the batter evaporates due to heat, air bubbles will form inside the already formed pancake. Adding egg liquid to the batter will also make the surface of the pancake uneven. If the contact force between the first scraper and the batter is too strong, the already spread pancake may easily break.

[0004] Referring to the existing Chinese patent with publication number CN218606227U, a baking pan assembly is disclosed. When a user needs to make pancakes, the mating part of the pancake-making component is installed on the positioning part, the batter is placed in the inner cavity of the baking pan, the operator holds the operating part and rotates the operating part, thereby driving the batter scraper to rotate around the positioning part and spread the batter. The thickness of the pancake is controlled by controlling the gap between the batter scraper and the bottom wall of the baking pan. However, the operator still needs to complete the batter spreading operation before the batter deforms. When adding egg liquid to the surface of the spread pancake and needing to flatten it, the batter may be scratched. Furthermore, in order to control the rotation of the batter scraper around the center of the operating surface, this application has a raised positioning part in the middle of the operating surface, resulting in a hole in the middle of the pancake, affecting its appearance.

[0005] Therefore, the existing technology lacks a first squeegee that can automatically adapt to uneven material surfaces during the spreading process without damaging the already formed batter. Summary of the Invention

[0006] The purpose of this invention is to provide a paste-like material spreading scraper to solve at least one of the above-mentioned technical problems.

[0007] The technical problem solved by this invention can be achieved by the following technical solutions:

[0008] A paste-like material leveling scraper includes a base plate, on one side of the upper surface of the base plate a pancake maker, the upper surface of the pancake maker serving as the operating surface, on which the material to be processed is placed. It also includes a paste-like material leveling system, which includes a frame fixed to the other side of the upper surface of the base plate. A drive shaft is rotatably connected to the frame, the drive shaft being located above the operating surface, with its centerline coinciding with the centerline of the operating surface. A connecting seat is fixed to the bottom end of the drive shaft.

[0009] It also includes a first scraper, which is rotatably connected to the connecting seat via a connecting assembly. The lower surface of the first scraper is an arc-shaped curved surface that contacts the material to be processed or the operating surface, and the intersection line of the contact is a contact line, which is configured to always pass through the center line of the drive shaft.

[0010] In the above design, the materials to be processed, including batter and egg liquid, are placed on the operating surface. Power is provided by controlling the rotation of the drive shaft, which drives the first scraper to rotate and scrape and flatten the materials on the operating surface. When encountering uneven or raised material surfaces, the first scraper rotates around the connecting component, and the contact line changes adaptively. The first scraper is configured such that when the first scraper rotates around the drive shaft, the contact line always passes through the center line of the drive shaft. Therefore, the line of action of the total pressure exerted by the first scraper on the material on the operating surface has a lever arm of zero, which allows the first scraper to flatten uneven material surfaces, ensuring uniform thickness and complete shape of the finished product, improving cooking quality. Moreover, the frame is located beside the operating surface, so it does not affect the shape integrity and aesthetics of the finished product.

[0011] In a further optimization, the connecting component includes a rotating shaft disposed on a connecting seat, the centerline of the rotating shaft being perpendicular to the centerline of the transmission shaft and being a straight line in a different plane from the centerline of the transmission shaft, and a connecting bracket rotatably connected to the rotating shaft is nested outside the rotating shaft, with one end of the connecting bracket away from the rotating shaft connected to the upper surface of the first scraper.

[0012] In the above design, when the drive shaft drives the first scraper to rotate, it encounters an uneven or raised surface of the material to be processed. The combined force of the supporting force provided by the uneven or raised surface of the material to be processed, along with gravity and friction, will form a torque, driving the first scraper to rotate around the rotation axis until the force reaches equilibrium. The first scraper then stops rotating, thereby timely adjusting the actual contact area between the arc-shaped surface and the material to be processed. This adjustment causes the position of the contact line to change dynamically, and the contact line always passes through the center line of the drive shaft.

[0013] Further optimization involves the plumb surface of the first scraper's center of gravity being offset from the plumb surface of the rotation axis centerline, and coinciding with the plumb surface of the transmission shaft centerline.

[0014] In the above design, the first scraper tends to rotate around the rotation axis away from the operating surface under the action of gravity, and within a reasonable thickness, the first scraper will stick to the operating surface.

[0015] Further optimization involves ensuring that the length of the arcuate surface is not less than the radius of the operating surface and not greater than two-thirds of the diameter of the operating surface.

[0016] In the above design, when the curved surface rotates, it will not cause perforations in the middle of the flattened material to be processed, thus ensuring that the material to be processed is flat and intact.

[0017] Further optimization is achieved by setting the width-to-length ratio of the first scraper to between 1:5 and 1:2.

[0018] The above design reduces the possibility of increased running resistance due to excessive width of the first scraper, and also reduces the possibility that the contact line will not pass through the center line of the drive shaft when the first scraper is too narrow and comes into contact with raised material to be processed.

[0019] Further optimization involves coating the outer surface of the first scraper with a working layer made of an oleophobic and hydrophobic material, wherein the oleophobic and hydrophobic material includes one of food-grade silicone, fluororubber, or polytetrafluoroethylene.

[0020] In the above design, the working layer has flexibility, elasticity, non-stickiness and temperature resistance, which can adapt well to the slight unevenness of the material to be processed and reduce the possibility of material adhering to the first scraper and affecting the quality of the finished product.

[0021] Further optimization includes a vertical support rod fixed to the other side of the upper surface of the base plate, with a crossbar embedded in the support rod. The end of the crossbar away from the support rod extends to the top of the operating surface. A drive shaft passes through the crossbar and is rotatably connected to it. The bottom end of the drive shaft extends out of the crossbar and is fixed to a connecting seat.

[0022] In the above design, the support rod and crossbar support the drive shaft.

[0023] Further optimization involves coaxially fixing a crank handle to the top of the drive shaft that extends out of the crossbar.

[0024] In the above design, power is provided by manually controlling the rotation of the crank handle, which improves the user's comfort.

[0025] Further optimization involves making the drive shaft a telescopic structure.

[0026] In the above design, the drive shaft includes a fixed sleeve rotatably connected to a crossbar. An inner rod is slidably connected inside the fixed sleeve, with its bottom end protruding from the fixed sleeve and one end of the inner rod protruding from the fixed sleeve fixed to a connecting seat. The fixed sleeve and the inner rod are each perforated with a number of pin holes at intervals. A pin is disposed on one of the pin holes. The pin passes through the fixed sleeve and the inner rod and is detachably connected to the fixed sleeve and the inner rod. The drive shaft is telescopic due to the fixed sleeve and the inner rod. The engagement of the pin and the pin hole facilitates locking of the drive shaft.

[0027] In a further optimization, the paste-like material spreading system includes a rotating rod, a support plate fixed at the bottom end of the rotating rod, and a connecting ear extending outward from both ends of the support plate. Each connecting ear is fitted with a connecting ring that is rotatably connected to the connecting ear, and two connecting rings are connected by a second scraper.

[0028] The beneficial effects of this application are as follows: The material to be processed (including batter and egg liquid) is placed on the operating surface. Power is provided by controlling the rotation of the drive shaft to drive the first scraper to rotate and scrape and flatten the material to be processed on the operating surface. When encountering uneven or raised material surfaces, the first scraper rotates around the connecting component, and the contact line changes adaptively. The first scraper is configured such that when the first scraper rotates around the drive shaft, the contact line always passes through the center line of the drive shaft. Therefore, the lever arm of the line of action of the total pressure exerted by the first scraper on the material on the operating surface is always zero, so that the first scraper can perform a flattening operation on uneven material surfaces, ensuring that the thickness of the finished product is uniform and the shape is intact, improving the cooking quality. Moreover, the frame is located on the side of the operating surface, so it does not affect the shape integrity and aesthetics of the finished product. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0030] Figure 1 This is a schematic diagram of the overall structure of the preferred embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the present invention used to embody the arc-shaped curved surface;

[0032] Figure 3 This is a schematic diagram of the arc-shaped curved surface design of the present invention;

[0033] Figure 4 This is a schematic diagram illustrating the structure of the second scraper of the present invention.

[0034] Reference numerals: 1. Base plate; 2. Pancake maker; 3. Operating surface; 4. Frame; 401. Support rod; 402. Crossbar; 5. Drive shaft; 6. Connecting seat; 7. First scraper; 8. Curved surface; 9. Rotating shaft; 10. Handle; 11. Support leg; 12. Rotating rod; 13. Support plate; 14. Connecting ear; 15. Connecting ring; 16. Second scraper. Detailed Implementation

[0035] To make the above-mentioned objects, features and advantages of the present invention more readily understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include the three-dimensional spatial dimensions of length, width, and depth.

[0038] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in an embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0039] Example 1, referring to Figures 1 to 3 As shown, a paste-like material leveling scraper includes a base plate 1, a pancake maker 2 fixed on one side of the upper surface of the base plate 1, the upper surface of the pancake maker 2 serving as an operating surface 3, the material to be processed being placed on the operating surface 3, and a paste-like material leveling system. The paste-like material leveling system includes a frame 4 fixed to the other side of the upper surface of the base plate 1, a drive shaft 5 rotatably connected to the frame 4, the drive shaft 5 being located above the operating surface 3, and the center line of the drive shaft 5 coinciding with the center line of the operating surface 3, and a connecting seat 6 fixed to the bottom end of the drive shaft 5.

[0040] It also includes a first scraper 7, which is rotatably connected to the connecting seat 6 via a connecting assembly. The lower surface of the first scraper 7 is an arc-shaped curved surface 8, which contacts the material to be processed or the operating surface 3, and the line of intersection of the contact is the contact line, which is configured to always pass through the center line of the drive shaft 5.

[0041] In this embodiment, the material to be processed (including batter and egg liquid) is placed on the operating surface 3. Power is provided by controlling the rotation of the drive shaft 5 to drive the first scraper 7 to rotate and scrape and flatten the material to be processed on the operating surface 3. When encountering uneven or raised material surfaces, the first scraper 7 rotates around the connecting component, and the contact line changes adaptively. The first scraper 7 is configured such that when the first scraper 7 rotates around the drive shaft 5, the contact line always passes through the center line of the drive shaft 5. Therefore, the line of action of the total pressure exerted by the first scraper 7 on the material on the operating surface 3 has a lever arm of zero, so that the first scraper 7 can perform a flattening operation on uneven material surfaces, ensuring that the thickness of the finished product is uniform and the shape is intact, improving the cooking quality. Moreover, the frame 4 is located on the side of the operating surface 3, so it does not affect the shape integrity and aesthetics of the finished product.

[0042] like Figure 1 and Figure 2 As shown, the connecting assembly includes a rotating shaft 9 disposed on the connecting seat 6. The center line of the rotating shaft 9 is perpendicular to the center line of the transmission shaft 5 and is a straight line in a different plane from the center line of the transmission shaft 5. A connecting bracket is nested outside the rotating shaft 9 and is rotatably connected to the rotating shaft 9. The end of the connecting bracket away from the rotating shaft 9 is connected to the upper surface of the first scraper 7.

[0043] During the rotation of the first scraper 7 driven by the drive shaft 5, when it encounters an uneven or raised surface of the material to be processed, the combined force of the supporting force provided by the uneven or raised surface of the material to be processed, the gravity, and the friction will form a torque, driving the first scraper 7 to rotate around the rotating shaft 9 until the force reaches equilibrium. The first scraper 7 then stops rotating, thereby timely adjusting the actual contact area between the arc-shaped surface 8 and the material to be processed. This adjustment causes the position of the contact line to change dynamically, and the contact line always passes through the center line of the drive shaft 5.

[0044] like Figure 2 As shown, the plumb surface of the center of gravity of the first scraper 7 is offset from the plumb surface of the center line of the rotation axis 9, and coincides with the plumb surface of the center line of the transmission shaft 5. Under the action of gravity, the first scraper 7 tends to rotate around the rotation axis 9 in a direction away from the operating surface 3. Within a reasonable thickness, the first scraper 7 will always be in close contact with the operating surface 3. Compared with simply increasing the gravity of the first scraper 7, by reconstructing the motion trajectory of the first scraper 7, the pressure balance of the first scraper 7 is improved, and wear is reduced.

[0045] like Figure 1 As shown, the length of the arc-shaped surface 8 is not less than the radius of the operating surface 3 and not greater than two-thirds of the diameter of the operating surface 3. When the arc-shaped surface 8 rotates, it will not cause a perforation in the middle of the flattened material to be processed, thus ensuring that the material to be processed is flat and intact.

[0046] like Figure 1As shown, the width-to-length ratio of the first scraper 7 is between 1:5 and 1:2. This reduces the possibility of increased running resistance due to an excessively large width of the first scraper 7, and also reduces the possibility that the contact line will not pass through the center line of the drive shaft 5 when contacting raised materials due to an excessively small width of the first scraper 7.

[0047] The outer surface of the first scraper 7 is covered with a working layer made of an oleophobic and hydrophobic material, including one of food-grade silicone, fluororubber, or polytetrafluoroethylene. The oleophobic and hydrophobic material has flexibility, elasticity, non-stickiness, and temperature resistance, which can adapt well to the slight unevenness of the material to be processed and reduce the possibility of material adhering to the first scraper 7 and affecting the quality of the finished product.

[0048] The frame 4 includes a vertical support rod 401 fixed to the other side of the upper surface of the base plate 1. A crossbar 402 is embedded in the support rod 401. The end of the crossbar 402 away from the support rod 401 extends above the operating surface 3. A drive shaft 5 passes through the crossbar 402 and is rotatably connected to it. The bottom end of the drive shaft 5 protrudes from the crossbar 402 and is fixed to the connecting seat 6. The support rod 401 and the crossbar 402 support the drive shaft 5.

[0049] The connecting bracket is made of high-temperature resistant, high-strength metal material, including stainless steel, alloy steel, aluminum alloy, or titanium alloy. When the first scraper 7 is working, it is subjected to resistance from the material to be processed. This force is transmitted to the rotating shaft 9 and the entire frame 4 through the connecting bracket. The connecting bracket is made of high-strength metal material, so that when the first scraper 7 comes into contact with the raised material to be processed, it only rotates around the rotating shaft 9, while its own shape remains unchanged, reducing the possibility that the contact line cannot always pass through the center line of the drive shaft 5 due to the deformation of the connecting bracket.

[0050] like Figure 1 and Figure 2 As shown, a crank handle 10 is coaxially fixed to the top of the crossbar 402 through the drive shaft 5. Power is provided by manually controlling the rotation of the crank handle 10, thereby improving the user's comfort.

[0051] The drive shaft 5 includes a fixed sleeve rotatably connected to the crossbar 402. An inner rod is slidably connected inside the fixed sleeve, with its bottom end protruding from the fixed sleeve. One end of the inner rod protruding from the fixed sleeve is fixed to the connecting seat 6. Several pin holes are spaced apart on both the fixed sleeve and the inner rod. A pin is fitted into one of the pin holes, passing through both the fixed sleeve and the inner rod, and is detachably connected to both. The drive shaft 5 is telescopic due to the fixed sleeve and the inner rod, and the engagement of the pin and the pin holes facilitates locking of the drive shaft 5.

[0052] like Figure 1 and Figure 2As shown, support feet 11 are fixed at the four corners of the lower surface of the base plate 1. By providing support feet 11 on the lower surface of the base plate 1, air can circulate in the space below the base plate 1, which facilitates heat dissipation.

[0053] like Figure 3 As shown, the design method of the arc-shaped curved surface 8 of the first scraper 7 is as follows:

[0054] Step 1: Give the values ​​of d, OA, AA1, and ∠A'A1P1, where:

[0055] d: The distance between the centerline of drive shaft 5 and the centerline of rotating shaft 9, two skew lines;

[0056] O: The projection point of rotation axis 9 onto the plane;

[0057] A: The initial projection point of the contact line onto the plane;

[0058] A1: The projection point of the new contact line on the plane after the contact line is changed;

[0059] P: Initial position of the contact wire;

[0060] P1: The position of the new contact wire after the contact wire is changed;

[0061] OA: The distance between the projection point of the rotation axis 9 on the plane and the initial projection point of the contact line on the plane;

[0062] AA1: The initial projection point of the contact line on the plane and the spacing between the projection points of the new contact line on the plane after the contact line changes;

[0063] Step 2: Calculate the values ​​of ∠A1OA' and OA1 using the formula:

[0064] cos∠OAA1=d / OA;

[0065] OA1 2 =AO 2 -2*AO*AA1*cos∠OAA1;

[0066] Obtain all side lengths and interior angles of triangle OAA1;

[0067] The selection range for ∠A'A1P1 is greater than or equal to 0;

[0068] Using the Law of Sines, in triangle OA1A', we have OA1 / sin∠OA'A1=OA1 / sin∠OA1A', where:

[0069] OA1: After the projection point of the rotating axis 9 on the plane changes to the contact line, the new contact line is spaced between the projection points on the plane.

[0070] Step 3: Adjust the length of OA to the value of OA1, return to step 2 to calculate, and obtain the new ∠A1OA' and OA1 values;

[0071] Step 4: Repeat the above operation to obtain a series of ∠A1OA' and OA1 values. Based on these values, draw a planar diagram to obtain a series of points. Fit these points with a curve to obtain the generatrix of the first scraper 7 and the contact line. Stretch this generatrix to obtain an arc-shaped surface 8. When the distance between the first scraper 7 and the upper surface of the material to be processed changes, the intersection line between the first scraper 7 and the upper surface of the material to be processed or the operating surface 3 always intersects the axis of the drive shaft 5.

[0072] When in use, the materials to be processed, including batter and egg liquid, are placed on the operating surface 3. The position of the drive shaft 5 is adjusted so that the first scraper 7 contacts the materials to be processed. The distance between the first scraper 7 and the operating surface 3 is the thickness of the pancake to be spread. The handle 10 is grasped and manually rotated. The rotation of the handle 10 will drive the connecting seat 6 and the rotating shaft 9 fixed to the handle 10 to rotate, which in turn drives the bracket and the first scraper 7 to rotate. When the first scraper 7 rotates, it scrapes and flattens the materials to be processed on the operating surface 3.

[0073] When encountering uneven or raised material surfaces, or when adding materials such as egg liquid to the material surface, the combined force of the supporting force provided by the uneven or raised material surface, gravity, and friction will form a torque, driving the first scraper 7 to rotate around the rotating shaft 9 until the force reaches equilibrium. The first scraper 7 then stops rotating, thereby timely adjusting the actual contact area between the arc-shaped surface 8 and the material to be processed. In the new equilibrium state, the new contact line is maintained or restored to the center line passing through the transmission shaft 5. Therefore, the lever arm of the line of action of the total pressure exerted by the first scraper 7 on the material on the operating surface 3 is always zero, enabling the first scraper 7 to perform a flattening operation on the uneven material surface, ensuring the uniform thickness and complete shape of the finished product, and improving the cooking quality.

[0074] Example 2, as Figure 4As shown, the paste-like material leveling system includes a rotating rod 12, with a support plate 13 fixed to the bottom end of the rotating rod 12. Each end of the support plate 13 extends outward with a connecting ear 14. Each connecting ear 14 is fitted with a connecting ring 15 that rotatably connects to it. The two connecting rings 15 are connected by a second scraper 16. The operator grasps the rotating rod 12, positioning the second scraper 16 above the operating surface 3, ensuring the second scraper 16 is in contact with the material to be processed (including paste and egg liquid). Manually rotating the rotating rod 12 causes the second scraper 16 to rotate around the center line of the rotating shaft 12, scraping and leveling the material on the operating surface 3. When encountering uneven or raised material surfaces, or when adding egg liquid or other materials to the surface, the uneven or raised material surface causes the second scraper 16 to rotate around the center line of the connecting ring 15, allowing the second scraper 16 to perform a leveling operation on the uneven surface of the material to be processed.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A paste-like material spreading scraper, comprising a base plate (1), wherein a pancake maker (2) is provided on one side of the upper surface of the base plate (1), the upper surface of the pancake maker (2) serves as an operating surface (3), and the material to be processed is placed on the operating surface (3), characterized in that, It also includes a paste-like material spreading system; The paste-like material spreading system includes a frame (4) fixed to the other side of the upper surface of the base plate (1). A drive shaft (5) is rotatably connected to the frame (4). The drive shaft (5) is located above the operating surface (3), and the center line of the drive shaft (5) coincides with the center line of the operating surface (3). A connecting seat (6) is fixed at the bottom end of the drive shaft (5). It also includes a first scraper (7), which is rotatably connected to the connecting seat (6) via a connecting assembly. The lower surface of the first scraper (7) is an arc-shaped curved surface (8), which contacts the material to be processed or the operating surface (3), and the line of intersection of the contact is a contact line, which is configured to always pass through the center line of the drive shaft (5).

2. The paste-like material leveling scraper according to claim 1, characterized in that, The connecting assembly includes a rotating shaft (9) disposed on the connecting seat (6). The center line of the rotating shaft (9) is perpendicular to the center line of the transmission shaft (5) and is a straight line in a different plane from the center line of the transmission shaft (5). A connecting bracket is nested outside the rotating shaft (9) and is rotatably connected to the rotating shaft (9). One end of the connecting bracket away from the rotating shaft (9) is connected to the upper surface of the first scraper (7).

3. The paste-like material leveling scraper according to claim 2, characterized in that, The plumb surface of the center of gravity of the first scraper (7) is offset from the plumb surface of the center line of the rotation axis (9) and coincides with the plumb surface of the center line of the transmission shaft (5).

4. The paste-like material leveling scraper according to claim 1, characterized in that, The length of the arc-shaped surface (8) is not less than the radius of the operating surface (3) and not greater than two-thirds of the diameter of the operating surface (3).

5. The paste-like material leveling scraper according to claim 1, characterized in that, The width-to-length ratio of the first scraper (7) is between 1:5 and 1:

2.

6. The paste-like material leveling scraper according to claim 1, characterized in that, The outer surface of the first scraper (7) is covered with a working layer made of an oleophobic and hydrophobic material, which includes one of food-grade silicone, fluororubber or polytetrafluoroethylene.

7. The paste-like material leveling scraper according to claim 1, characterized in that, The frame (4) includes a vertical support rod (401) fixed to the other side of the upper surface of the base plate (1). A crossbar (402) is embedded in the support rod (401). The end of the crossbar (402) away from the support rod (401) extends to the top of the operating surface (3). The drive shaft (5) passes through the crossbar (402) and is rotatably connected to the crossbar (402). The bottom end of the drive shaft (5) is fixed to the connecting seat (6).

8. The paste-like material leveling scraper according to claim 7, characterized in that, The drive shaft (5) extends out of the top end of the crossbar (402) and is coaxially fixed with a crank handle (10).

9. A paste-like material leveling scraper according to claim 7, characterized in that, The drive shaft (5) is a telescopic structure.

10. A paste-like material leveling scraper according to claim 1, characterized in that, The paste-like material spreading system includes a rotating rod (12), a support plate (13) is fixed at the bottom end of the rotating rod (12), and a connecting ear (14) extends outward from both ends of the support plate (13). Each connecting ear (14) is fitted with a connecting ring (15) that is rotatably connected to the connecting ear (14). The two connecting rings (15) are connected by a second scraper (16).

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