A new type of broken stalk wood pick for production of Maotai-flavor liquor

Abstract

This application belongs to the technical field of tools for producing Maotai-flavor liquor, and specifically relates to a novel sorghum stalk-breaking wooden shovel for Maotai-flavor liquor production. It includes: a shovel board body, the upper surface of which is the stalk-breaking working surface; a stalk-breaking sharp point, located at the center of the front end of the stalk-breaking working surface; and a handle, disposed on the shovel board body for hand-held operation. This application adds a stalk-breaking sharp point to the shovel board body. This sharp point has a pointed apex, allowing for concentrated force to quickly cut into the sorghum stalks. Compared to the flat surface of a traditional wooden shovel, this significantly reduces the force required for stalk breaking, greatly reducing the labor intensity of workers and improving stalk-breaking efficiency.

Description

Technical Field

[0001] This application relates to the technical field of tools for producing Maotai-flavor liquor, and in particular to a novel wooden shovel for breaking up stems in the production of Maotai-flavor liquor. Background Technology

[0002] Maotai-flavor liquor occupies a significant position in my country's liquor market. Its production process revolves around the core of "high-temperature stacking and solid-state fermentation." Spreading and cooling is a crucial step in the entire brewing process, and it is the key process that determines the quality of fermentation of the mash. In this step, manual breaking and turning of the mash plays an even more important role.

[0003] During the cooling process, the first task after cooling is to break up the clumps. The sorghum and other raw materials used in the brewing of Maotai-flavor liquor are prone to clumping after steaming. If these clumps are not effectively broken up, heat and moisture cannot dissipate in time, failing to provide a suitable environment for microbial growth and reproduction. This severely hinders the quantity and quality of the liquor produced by microorganisms during subsequent fermentation, affecting the fermentation effect. Therefore, manually breaking up the clumps plays a crucial role in promoting smooth fermentation and can greatly accelerate the fermentation process.

[0004] Currently, the commonly used tool for breaking up and turning over sorghum stalks is the traditional flat wooden shovel. Its structure mainly consists of two parts: a flat wooden shovel board and a handle. Due to the completely flat wooden shovel board design, when facing clumps of sorghum stalks, its flat structure makes it difficult to effectively concentrate force to break up the stalks. This causes workers to repeat the operation multiple times and increase their force to complete the breaking up of the stalks. This not only greatly increases the labor intensity but also significantly reduces work efficiency.

[0005] Therefore, it is necessary to design a new type of wooden shovel for breaking stems in the production of Maotai-flavor liquor to solve the technical problems mentioned above. Utility Model Content

[0006] This application provides a novel sorghum stalk breaking shovel for the production of Maotai-flavor liquor. By adding a sharp stalk breaking tip, the sharp apex of the tip concentrates stress and quickly cuts into the sorghum stalk, significantly reducing the pushing force required for breaking the stalk. Compared to the flat surface of a traditional wooden shovel, using a shovel with a sharp stalk breaking tip greatly reduces the force required for breaking the stalk, significantly reducing the labor intensity of workers and improving the efficiency of breaking the stalk.

[0007] To address the above problems, this application provides a novel wooden shovel for breaking stems in the production of Maotai-flavor liquor, comprising: a shovel board body, the upper surface of which is a stem-breaking working surface; a stem-breaking sharp part, which is located at the center of the front end of the stem-breaking working surface; and a handle, which is disposed on the shovel board body for hand-holding operation of the shovel board body.

[0008] An alternative is that the sharp part of the stalk breaking is a triangular pyramid, which is formed by a bottom surface and three side surfaces; two of the side surfaces of the triangular pyramid are diversion sides and the remaining side surface is a connecting side. The diversion side is used to guide the diversion of the lees, and the connecting side is used to detachably connect the triangular pyramid to the shovel plate body.

[0009] An optional configuration is that the apex angle of the triangular pyramid is 30°-45°; and the inclination angle between the two branching sides of the triangular pyramid and the bottom surface is 15°-20°.

[0010] An alternative is that the new type of straw-breaking wooden shovel further includes an arc-shaped guide section; the arc-shaped guide section is disposed on the straw-breaking working surface and is located close to the rear of the bottom surface of the triangular pyramid, and the arc-shaped guide section is used to guide the rolling of the mash during straw breaking.

[0011] An alternative embodiment is that the arc-shaped flow guide includes a first arc-shaped surface and a second arc-shaped surface, the first arc-shaped surface and the second arc-shaped surface being respectively disposed opposite to the two flow-dividing sides of the triangular cone; the first end of the first arc-shaped surface and the first end of the second arc-shaped surface are connected; the second end of the first arc-shaped surface and the second end of the second arc-shaped surface are respectively detachably connected to the shovel plate body.

[0012] An alternative is that the first arc-shaped surface and the second arc-shaped surface protrude outward relative to the stalk breaking operation surface; the protrusion height of the first arc-shaped surface and the second arc-shaped surface is lower than or equal to the height of the diversion side of the triangular pyramid.

[0013] An alternative approach is that an arc-shaped protrusion connects the first end of the first arc-shaped surface and the first end of the second arc-shaped surface; the protrusion height of the arc-shaped protrusion relative to the stalk-breaking working surface is higher than the protrusion heights of the first arc-shaped surface and the second arc-shaped surface relative to the stalk-breaking working surface.

[0014] An alternative approach is to have connecting strips connected to the second ends of the first arc-shaped surface and the second arc-shaped surface, respectively, and the connecting strips are connected to the shovel plate body.

[0015] Alternatively, the triangular cone and / or the arc-shaped guide section may be made of food-grade stainless steel.

[0016] Alternatively, the surface of the handle may be provided with anti-slip texture; and / or, the length of the handle may be 1.5m-2m.

[0017] Beneficial effects:

[0018] This application provides a novel sorghum stalk-breaking wooden shovel for the production of Maotai-flavor liquor. Traditional flat wooden shovels have significant shortcomings in stalk-breaking efficiency. Due to their completely flat shovel head design, they cannot effectively concentrate force when breaking sorghum stalks, requiring workers to repeatedly operate and exert greater force to complete the task. This not only greatly increases labor intensity but also significantly reduces work efficiency. Therefore, this application adds a sharp stalk-breaking tip to the shovel body. During stalk-breaking operations, the worker holds the shovel and aligns the apex of the sharp tip with the sorghum stalk clumping. Utilizing the sharpness of the tip, the force is converted from a surface to a single point, concentrating strong stress to quickly cut into the sorghum stalk and break it. Compared to the flat surface of a traditional wooden shovel, using a shovel with a sharp stalk-breaking tip significantly reduces the pushing force required for breaking stalks, greatly reducing worker labor intensity and improving stalk-breaking efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a novel shovel for breaking up stems in the production of Maotai liquor in this embodiment;

[0020] Figure 2 This is a partial schematic diagram of a novel shovel for breaking up stems in the production of Maotai liquor in this embodiment;

[0021] Figure 3 This is a schematic diagram of the triangular pyramid structure in this embodiment;

[0022] Figure 4 In this embodiment, from Figure 2 The solid arrow in the middle points in the side view of the triangular pyramid;

[0023] Figure 5 This is a schematic diagram of the arc-shaped flow guide in this embodiment;

[0024] Figure 6 This is a schematic diagram of the structure connecting the long strip in this embodiment.

[0025] Figure label:

[0026] 1. Shovel board body; 11. Straw breaking working surface; 2. Straw breaking sharp part; 21. Triangular pyramid; 211. Bottom surface; 212. Diverting side; 213. Connecting side; 3. Handle; 4. Arc-shaped guide part; 41. First arc-shaped surface; 42. Second arc-shaped surface; 43. Arc-shaped protrusion; 5. Connecting strip; 51. Fixing hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0029] Traditionally, the tool for turning the fermented mash is a flat wooden shovel, which relies entirely on manual operation. The turning operation is completed by the worker's simple linear movements: pushing forward to break the stalks and pushing the mash sideways. However, when breaking the stalks, the worker relies entirely on his own strength to push forward to break the mash. However, the process of breaking the stalks generates high resistance, which often requires the worker to repeat the operation multiple times to achieve the goal. This not only greatly consumes the worker's physical strength but also seriously restricts the efficiency of breaking the stalks.

[0030] This application provides a novel shovel for breaking stems in the production of Maotai liquor. By increasing the use of the sharp part for breaking stems, the sharp part transforms the "flat pushing" of the traditional wooden shovel into "sharp cutting," which can reduce the force required for breaking stems, reduce labor intensity, and significantly improve work efficiency.

[0031] The following detailed description, in conjunction with the accompanying drawings, describes a novel wooden shovel for breaking up stems in the production of Maotai-flavor liquor, as provided in this embodiment. Please refer to the accompanying drawings. Figure 1 As shown, the new type of stalk-breaking wooden shovel includes a shovel board body 1, a stalk-breaking sharp part 2, and a handle 3. The upper surface of the shovel board body 1 is the stalk-breaking working surface 11. The stalk-breaking sharp part 2 is located at the center of the front end of the stalk-breaking working surface 11. The handle 3 is located on the shovel board body 1 and is used for hand-held operation of the shovel board body 1.

[0032] In this embodiment, the shovel body 1 provides the base plane for the entire tool to bear loads and operate. Workers hold the handle 3 to turn over and break up the sorghum stalks. During the breaking-up operation, the worker holds the handle 3 and aligns the sharp breaking point 2 with the clumped sorghum stalks. Utilizing the concentrated stress at the sharp point, the stalk is quickly cut into the sorghum stalk, thus breaking it. This structural design significantly reduces the pushing force required for breaking the stalks. Compared to traditional wooden shovels, which mainly rely on manual force applied to a flat surface, the wooden shovel with the sharp breaking point 2 in this application converts the vertical force into a concentrated shearing force, transforming the force from a surface to a point. This significantly utilizes the principle of stress concentration, greatly reducing the pushing force, significantly alleviating the worker's labor intensity, and improving the efficiency of breaking the stalks.

[0033] Please refer to Figures 1-3 As shown in this embodiment, it should be noted that the sharp part 2 of the stalk breaking is a triangular pyramid 21, which is detachably connected to the shovel plate body 1.

[0034] The triangular pyramid 21 can be made of high-strength, corrosion-resistant stainless steel that meets food contact safety standards, or other materials; no specific restrictions are made in this embodiment.

[0035] The triangular pyramid 21 consists of three lateral faces and a base 211. Each lateral face is a triangle, and these triangles share a common vertex, which is the apex angle of the pyramid 21. The base 211 is also a triangle, and it connects to the three lateral faces. Two of the lateral faces of the pyramid 21 are diversion lateral faces 212, and the remaining lateral face is a connecting lateral face 213. The diversion lateral face 212 is used to guide the flow of the fermented mash during the breaking of the stalks, and the connecting lateral face 213 is used to detachably connect the pyramid 21 to the shovel plate body 1. For ease of understanding, refer to... Figure 3 As shown, point A is the vertex, triangle BCD is the base 211, triangles ABC, ACD, and ABD are all lateral faces, among which triangles ABC and ACD are branching lateral faces 212, and triangle ABD is the connecting lateral face 213.

[0036] In some embodiments, the apex of the triangular pyramid 21 is sharp, with an angle set at 30°-45°, and the angle between the diversion side 212 of the triangular pyramid 21 and the bottom surface 211 is 15°-20°. The sharp apex allows for concentrated force to quickly cut into the sorghum stalks. Compared to the flat surface of a traditional wooden shovel, using a wooden shovel with the triangular pyramid 21 greatly reduces the force required to break the stalks. Furthermore, during the breaking process, the two diversion sides 212 of the triangular pyramid 21 are used to guide the mash to flow to both sides.

[0037] In some embodiments, the connecting side 213 of the triangular pyramid 21 is detachably connected to the shovel plate body 1. A combination of reinforced connectors, including stainless steel bolts, lock nuts, and washers of the same material as the triangular pyramid 21, is used to fix the connecting side 213 to the shovel plate body 1. Specifically, the stainless steel bolts are passed through the pre-set mounting holes on the connecting side 213 of the triangular pyramid 21 and the corresponding through holes on the shovel plate body 1, and then tightened with lock nuts. The triangular pyramid 21 is fixed by the lock nuts and washers, ensuring that it does not loosen when subjected to vertical force. The combination of stainless steel bolts, lock nuts, and washers not only ensures a firm connection between the triangular pyramid 21 and the shovel plate body 1, but also prevents the triangular pyramid 21 from loosening or shifting during long-term and frequent shovel breaking operations.

[0038] Therefore, in this embodiment, in order to address the problem of low efficiency in breaking up stalks with traditional wooden shovels, a triangular pyramid 21 is added to the shovel body 1 to change the planar pressing to a three-dimensional cutting. The principle of stress concentration in triangles is used to reduce labor intensity, which is in line with manual operation habits and achieves the effects of quick stalk breaking, labor saving and reduced labor intensity.

[0039] Heat dissipation is a crucial objective of the destemming process. During the fermentation stage, the mash generates a significant amount of heat due to the active metabolism of microorganisms, often reaching temperatures above 50°C. Excessive heat, if not promptly controlled, can inhibit the normal growth and metabolism of microorganisms, even leading to their death and severely disrupting the fermentation process. Therefore, during the cooling stage, wooden shovels are typically used to turn the mash for effective heat dissipation, lowering its temperature before proceeding to the next step and providing favorable preconditions for subsequent fermentation. However, in current turning operations, the mash is merely pushed in one direction. This simple movement results in poor rolling and mixing of the mash, failing to promote thorough rolling and mixing. Actual production monitoring has revealed temperature differences exceeding 5°C in the mash. Consequently, the temperature difference in the mash after traditional wooden shovel turning is generally quite large.

[0040] Therefore, in this embodiment, please refer to Figure 1 and Figure 2 As shown, the new type of sorghum stalk breaking shovel also includes an arc-shaped guide section 4. The arc-shaped guide section 4 is positioned on the stalk breaking working surface 11, and is located immediately behind the stalk breaking tip 2, that is, immediately behind the bottom surface 211 of the triangular pyramid 21. The arc-shaped guide section 4 guides the rolling of the mash during stalk breaking. By adding the arc-shaped guide section 4 to the stalk breaking working surface 11, when the triangular pyramid 21 cuts into the sorghum stalks for stalk breaking, the arc-shaped guide section 4 can guide the rolling of the mash during stalk breaking, increasing the movement trajectory and enhancing heat dissipation.

[0041] Please refer to Figure 2 , Figure 5 as well as Figure 6 As shown, in some embodiments, the arc-shaped guide part 4 is disposed on the shovel plate body 1 on the shovel breaking working surface 11 and is located close to the back of the bottom surface 211 of the triangular pyramid 21. The arc-shaped guide part 4 is made of the same material as the triangular pyramid 21. The arc-shaped flow guide 4 includes a streamlined first arc-shaped surface 41, a second arc-shaped surface 42, and an arc-shaped protrusion 43. The arc-shaped protrusion 43 is disposed between the first arc-shaped surface 41 and the second arc-shaped surface 42. The first end of the first arc-shaped surface 41 and the first end of the second arc-shaped surface 42 are both connected to the arc-shaped protrusion 43. The second end of the first arc-shaped surface 41 and the second end of the second arc-shaped surface 42 are detachably connected to the shovel plate body 1. The first arc-shaped surface 41 corresponds to one of the flow-diverting side surfaces 212 of the triangular pyramid 21, and the second arc-shaped surface 42 corresponds to the other flow-diverting side surface 212 of the triangular pyramid 21. It can be understood that the first arc-shaped surface 41 and one of the flow-diverting side surfaces 212 of the triangular pyramid 21 are located on the same side, and the second arc-shaped surface 42 and the other flow-diverting side surface 212 of the triangular pyramid 21 are located on the same side. Preferably, as Figure 2 and Figure 4As shown, since the side trajectories of the first arc surface 41 and the second arc surface 42 are arc-shaped, in order to facilitate the connection between the first arc surface 41, the second arc surface 42 and the diversion side surface 212, the edge shared by the bottom surface 211 and the diversion side surface 212 is also set to arc shape, so that it can be better aligned with the first arc surface 41 and the second arc surface 42.

[0042] Traditional methods of turning over fermented mash only push it in one direction, resulting in insufficient rolling and a large temperature difference between the surface and the bottom layer. However, through the guidance of the first arc-shaped surface 41 and the second arc-shaped surface 42 in this embodiment, the fermented mash can be spread to both sides, increasing the rolling amplitude and enhancing heat dissipation.

[0043] In some embodiments, the first arc-shaped surface 41 and the second arc-shaped surface 42 protrude outward relative to the crushing working surface 11, and the protrusion height of the arc-shaped protrusion 43 relative to the crushing working surface 11 is higher than the protrusion height of the first arc-shaped surface 41 and the second arc-shaped surface 42 relative to the crushing working surface 11. The arrangement of the arc-shaped protrusion 43 can better guide and disperse the mash to the first arc-shaped surface 41 and the second arc-shaped surface 42 on both sides.

[0044] In some embodiments, the protrusion height of the first arc-shaped surface 41 and the second arc-shaped surface 42 is lower than or equal to the diversion side surface 212 of the triangular pyramid 21. Preferably, the first arc-shaped surface 41 and the second arc-shaped surface 42 are flush with the diversion side surface 212, meaning that after the diversion effect of the diversion side surface 212 of the triangular pyramid 21, the mash can still roll under the guidance of the first arc-shaped surface 41 or the second arc-shaped surface 42. Guided by the diversion side surface 212 of the triangular pyramid 21 and the first arc-shaped surface 41 and the second arc-shaped surface 42 of the arc-shaped guide section 4, the mash forms a composite motion of "lateral diversion + longitudinal tumbling". The arc-shaped surface can guide the mash to form a rolling trajectory with a more complex rolling footprint and a larger rolling path, increasing the contact area with air and improving the heat dissipation effect. In the subsequent mixing stage of mash and yeast, the mixing effect is better. Therefore, in this embodiment, the combined use of the triangular pyramid 21 and the arc-shaped guide 4 will form a "break-and-divide" linkage path, thereby achieving high efficiency in "break-and-divide-heat dissipation".

[0045] In some embodiments, a connecting strip 5 is integrally connected to the second end of the first arcuate surface 41 and the second end of the second arcuate surface 42. The connecting strip 5 is planar, and the connecting strip 5 facilitates the fixed installation of the arcuate guide part 4 onto the shovel plate body 1. The connecting strip 5 is connected to the shovel plate body 1 using a combination of stainless steel bolts, lock nuts, and washers. Specifically, the stainless steel bolts are passed through the pre-set fixing holes 51 of the connecting strip 5 and the corresponding through holes of the shovel plate body 1, and then tightened with lock nuts. This ensures that the first arcuate surface 41 and the second arcuate surface 42 of the arcuate guide part 4 will not fall off during long-term use.

[0046] Therefore, in this embodiment, to address the problem of uneven heat dissipation with traditional wooden shovels, an arc-shaped flow guide 4 is added to the shovel body 1. When workers use the wooden shovel to turn the mash, the mash, during the process of being pushed aside, will flow to both sides along the streamlined first arc surface 41 and second arc surface 42, generating a more complex motion trajectory and promoting the rolling of the mash. Actual production monitoring shows that after installing the arc-shaped flow guide 4, the rolling degree of the mash is significantly improved compared to traditional wooden shovels, effectively improving the heat dissipation effect. The temperature difference of the mash can be controlled within a lower range, greatly improving the heat dissipation speed and facilitating the stable fermentation of the mash.

[0047] Please refer to Figure 1 and Figure 2 As shown in this embodiment, it should also be noted that the front end of the shovel body 1 can be set to an arc shape or a flat shape. Setting the front end of the shovel body 1 to an arc shape can also reduce the resistance of the lees when breaking the stalks. The main purpose is to use the triangular pyramid 21 to quickly cut into the sorghum stalks and complete the stalk breaking operation.

[0048] In some embodiments, the shovel board body 1 can be made of hardwood. Hardwood ensures the strength and durability of the wooden shovel, enabling it to withstand long-term humid and high-intensity working environments. The shovel board body 1 is typically rectangular or slightly curved, with a length of 35cm-40cm and a width of 15cm-25cm. This width ensures that the shovel stalks are not scalded by the broken mash after being broken. The thickness is 2cm-3cm, ensuring that the shovel board body 1 has sufficient strength to withstand the pressure of turning the mash. The dimensions of the shovel board body 1 can be determined according to actual usage requirements; no specific limitations are imposed in this embodiment.

[0049] In this embodiment, it should also be noted that the handle 3 is also made of hardwood, and its length is 1.5m-2m, which allows the operator to exert force more effectively during operation. The connection between the handle 3 and the shovel body 1 is specially reinforced, using mortise and tenon joints (or bolts) reinforced with metal hoops to ensure a stable connection during high-intensity operations. Furthermore, the handle 3 provides workers with a comfortable and effective grip, allowing them to flexibly control the direction and force of the shovel's operation, fully utilizing the flexibility and precision of manual operation.

[0050] In some embodiments, the surface of the handle 3 is provided with anti-slip texture, which can provide stable grip and reduce the force required for operation.

[0051] The implementation principle of this embodiment is as follows: This application addresses the problems of low efficiency and slow heat dissipation of traditional wooden shovels by adding a triangular pyramid 21 and an arc-shaped guide 4 to the shovel body 1 on the shovel ...

[0052] The procedure for breaking the stem and dissipating heat during operation is as follows:

[0053] Positioning and breaking the lees: Hold the handle 3, align the front end of the shovel body 1 with the spread-out fermented mash, and apply vertical force to cut through the apex of the triangular pyramid 21;

[0054] Straight-line turning: Push the shovel plate body 1 forward at a certain angle. Under the action of the diversion side 212 of the triangular pyramid 21 and the arc surface of the arc-shaped guide part 4, the mash is diverted to both sides, and the stalks are broken and turned at the same time.

[0055] Circulating heat dissipation: Repeat the above steps to ensure that the temperature of the mash drops uniformly to the target range within the time specified in the process.

[0056] Thus, through the synergistic cooperation of the triangular pyramid 21 and the arc-shaped guide 4, multi-dimensional improvements are achieved in terms of straw breaking efficiency, heat dissipation effect, labor intensity, and equipment lifespan.

[0057] Improved efficiency and reduced labor intensity in breaking straw: The main feature is the use of triangular pyramid 21. Working principle: Mechanical optimization. Triangular pyramid 21 transforms the traditional "planar pushing" of wooden shovels into "sharp cutting". By utilizing the principle of stress concentration in triangles, the force required to break straw is reduced.

[0058] Improved heat dissipation uniformity and fermentation quality of fermented mash: The main feature is the use of the arc-shaped guide section 4. The working principle is a three-dimensional rolling effect. The fermented mash is guided by the arc-shaped surface of the triangular pyramid 21 and the side 212 of the diversion, forming a compound motion of "lateral diversion and longitudinal tumbling". The contact area with air is increased, and the heat dissipation effect is better. In the subsequent mixing of fermented mash and koji, the mixing effect is better.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A new type of broken stalk wood hoe for production of Maotai-flavor liquor, characterized in that, include: The shovel board body (1) has an upper surface that serves as a stalk-breaking surface (11). The stalk-breaking sharp part (2) is located at the center of the front end of the stalk-breaking working surface (11); A handle (3) is provided on the shovel body (1) for hand-held operation of the shovel body (1).

2. The novel shovel for breaking stalks according to claim 1, characterized in that, The sharp part (2) of the broken stem is a triangular pyramid (21), which is formed by a bottom surface (211) and three side surfaces. Two sides of the triangular pyramid (21) are diversion sides (212), and the remaining side is a connecting side (213). The diversion side (212) is used to guide the diversion of the fermented mash, and the connecting side (213) is used to detachably connect the triangular pyramid (21) to the shovel plate body (1).

3. The novel shovel for breaking stalks according to claim 2, characterized in that, The vertex angle of the triangular pyramid (21) is 30°-45°; The inclination angle between the two branching sides (212) of the triangular pyramid (21) and the bottom surface (211) is 15°-20°.

4. The novel shovel for breaking stalks according to claim 2 or 3, characterized in that, The novel shovel for breaking stems also includes an arc-shaped guide section (4); The arc-shaped guide section (4) is disposed on the stalk breaking operation surface (11) and is located close to the rear of the bottom surface (211) of the triangular pyramid (21). The arc-shaped guide section (4) is used to guide the rolling of the mash during stalk breaking.

5. The novel shovel for breaking stalks according to claim 4, characterized in that, The arc-shaped guide section (4) includes a first arc-shaped surface (41) and a second arc-shaped surface (42), and the first arc-shaped surface (41) and the second arc-shaped surface (42) are respectively provided corresponding to the two diversion side surfaces (212) of the triangular pyramid (21); The first end of the first arcuate surface (41) is connected to the first end of the second arcuate surface (42); The second end of the first arc-shaped surface (41) and the second end of the second arc-shaped surface (42) are respectively detachably connected to the shovel plate body (1).

6. The novel shovel for breaking stalks according to claim 5, characterized in that, The first arc-shaped surface (41) and the second arc-shaped surface (42) protrude outward relative to the stalk breaking operation surface (11); The height of the protrusion of the first arc-shaped surface (41) and the second arc-shaped surface (42) is lower than or equal to the height of the diversion side (212) of the triangular pyramid (21).

7. The novel shovel for breaking stalks according to claim 6, characterized in that, An arc-shaped protrusion (43) is connected between the first end of the first arc-shaped surface (41) and the first end of the second arc-shaped surface (42); The height of the arc-shaped protrusion (43) relative to the stalk breaking working surface (11) is higher than the height of the first arc-shaped surface (41) and the second arc-shaped surface (42) relative to the stalk breaking working surface (11).

8. The novel shovel for breaking stalks according to claim 6, characterized in that, The second end of the first arc-shaped surface (41) and the second end of the second arc-shaped surface (42) are respectively connected to a connecting strip (5), which is connected to the shovel plate body (1).

9. The novel shovel for breaking stalks according to claim 4, characterized in that, The triangular pyramid (21) and / or the arc-shaped guide (4) are made of food-grade stainless steel.

10. The novel shovel for breaking stalks according to claim 1, characterized in that, The surface of the handle (3) is provided with anti-slip texture; And / or, the length of the handle (3) is 1.5m-2m.

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