A straw composting device
By adding a detachable adapter and straw fork to the bucket of a small agricultural loader, the problems of high labor intensity and high cost of traditional straw composting and turning have been solved, realizing efficient and low-cost mechanized turning, improving compost quality and equipment adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 余姚市农业技术推广服务总站
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional straw composting involves high labor intensity and labor costs, while existing equipment is costly to modify and complex to operate.
A detachable adapter and straw fork are added to the bucket of a small agricultural loader. The straw fork can be quickly installed and removed through a socket and threaded connection. It offers a choice of straight and S-shaped fork bodies to adapt to different straw shapes.
It significantly reduces labor intensity and labor costs, improves turning efficiency, enhances pile aeration, promotes composting maturity, reduces equipment modification costs, and increases equipment utilization and operational flexibility.
Smart Images

Figure CN224411654U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural production equipment technology, and in particular to a straw composting turning device. Background Technology
[0002] Traditional straw composting is an organic fertilizer production method that uses microorganisms to decompose crop straw (such as corn stalks, rice stalks, wheat stalks, etc.) into stable humus and nutrients (fertilizer). It is characterized by local sourcing, low cost, simple operation, environmental protection and high efficiency. It plays an irreplaceable role in resource recycling, soil fertility improvement and the construction of ecological agriculture, and is especially suitable for small farmers and ecological farms.
[0003] Composting involves piling the compost pile in layers to a height of approximately 1.5-2 meters. The cross-section of the pile is typically trapezoidal or semi-circular to facilitate heat retention and drainage. It usually takes 3-6 months to fully decompose. During the entire decomposition process, the pile generally needs to be turned 3-5 times to ensure oxygen supply. Turning the pile is crucial for aerobic fermentation. Currently, turning the pile is mainly done manually using farm tools such as shovels and forks, which is labor-intensive and costly. Utility Model Content
[0004] The purpose of this invention is to provide a straw composting turning device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A straw composting turning device includes a small agricultural loader equipped with a bucket. The lower edge of the bucket has at least seven short forks evenly distributed along its edge. Each short fork includes a main body and an inclined portion located at the front end of the main body. The front end of the main body protrudes outward from the outer edge of the bucket, and the rear end is fixedly connected to the inner edge of the bucket. The device is characterized by further including a connecting part sleeved on the outside of the short forks and fixedly connected to the lower edge of the bucket, and a straw fork that can be detachably sleeved on the connecting part.
[0007] The adapter includes a single-opening sleeve portion that fits onto the outside of the short fork tooth and a plate-shaped bridging portion that fixes two adjacent sleeve portions; the sleeve portion includes a cuboid-shaped bridging portion, a first hollow cavity that matches the short fork tooth, and a snap-fit groove that matches the lower edge of the bucket and is provided at the opening of the first hollow cavity; during installation, the first hollow cavity abuts against the short fork tooth, the snap-fit groove abuts against the lower edge of the bucket, and the bridging portion is detachably threaded to the inner wall of the bucket;
[0008] The straw fork includes a mounting part that is detachably sleeved on the sleeve and an elongated fork body. The mounting part and the elongated fork body are integrally formed and connected. The mounting part includes a second hollow cavity that matches the sleeve. During installation, the second hollow cavity abuts against the sleeve. The top of the mounting part is detachably threaded to the sleeve.
[0009] Preferably, the elongated fork is in the shape of a straight line or an S-shape. The straight fork is suitable for turning over compact, long straw; the S-shaped fork is suitable for loose, short straw.
[0010] Preferably, the elongated fork body has an arc-shaped bend in the middle to facilitate the turning operation.
[0011] Preferably, an auxiliary mounting plate extends from the top of the mounting part away from the elongated fork body; the bottom surface of the auxiliary mounting plate abuts against the top surface of the bridging part and the two are detachably threaded together, enhancing the structural stability between the straw fork and the adapter.
[0012] Compared with the prior art, the straw composting turning device of this application has the following beneficial effects:
[0013] 1. Significantly Reduced Labor Intensity and Costs: The core advantage of this invention lies in transforming the traditional manual labor of turning straw piles with shovels and forks into mechanized operations using small agricultural loaders. By adding a specially designed straw fork assembly, the driver only needs to operate the loader to efficiently complete the large-scale, deep turning of straw piles. This fundamentally solves the problems of high labor intensity and time-consuming manual turning, significantly reducing labor costs, and is particularly suitable for small farmers and ecological farms with limited labor resources.
[0014] 2. Highly efficient use of existing equipment with low modification costs: This invention does not design entirely new dedicated composting equipment, but rather cleverly adapts the existing bucket of a small agricultural loader. By adding a detachable adapter and straw forks, a regular loader bucket can be given the function of a professional straw fork. Compared to purchasing expensive large-scale dedicated composting equipment or fork replacement devices, this solution does not require disassembling or replacing the original bucket, resulting in extremely low modification costs. It fully utilizes farmers' existing small loader resources, greatly improving equipment utilization and economy.
[0015] 3. Easy installation and efficient switching: The adapter unit tightly abuts against the lower edge of the bucket and the short fork teeth through the first hollow cavity of the sleeve part and the snap-fit groove, and is fixed to the inner wall of the bucket through the bridging part with a threaded connection. The structure is stable and easy to disassemble and assemble. The straw fork is sleeved on the sleeve part of the adapter unit through the second hollow cavity of its mounting part, and is quickly and reliably installed through the top threaded connection (and the connection between the optional auxiliary mounting plate and the bridging part). This modular design makes switching between the loader bucket and straw fork functions very quick and easy, without the need for complicated tools or professional skills, greatly improving the efficiency of work preparation.
[0016] 4. Extremely flexible and adaptable in operation:
[0017] (1) As needed for the number of forks: Users can flexibly choose to install the required number of straw forks according to the specific size of the straw pile (such as length and width) and the required turning depth, so as to improve the efficiency of operation and avoid resource waste or insufficient operation capacity.
[0018] (2) Fork shape selection as needed: Two main fork shapes are provided: "straight" and "S" (with optional bends). The "straight" fork is suitable for handling relatively compact, long straw bundles with strong penetration; the "S" fork is more suitable for handling loose, short straw, with better grasping, stirring, and scattering effects. Users can quickly select the most suitable fork type according to the type, shape, and pile condition of the straw being processed, significantly improving the efficiency and effect of turning operations, ensuring that the pile is loose and breathable, and promoting aerobic fermentation.
[0019] (3) Stable and reliable structure: The abutting fit between the straw fork installation part and the adapter sleeve part, the threaded fixing at the top, and the connection design between the auxiliary installation plate and the bridging part together ensure that the straw fork can withstand a large load and is not easy to loosen or fall off when facing a dense straw pile during the turning operation, thus ensuring the safety and continuity of the operation.
[0020] 5. Improve the quality of turning: Selecting the appropriate number, density and shape of forks can be inserted deeper into the pile more effectively, achieving more thorough turning, breaking and loosening, improving oxygen circulation and moisture distribution inside the pile, which is conducive to promoting microbial activity, accelerating the composting process and improving the quality of the final compost product.
[0021] In summary, this utility model provides a low-cost, easy-to-install, efficient, and highly adaptable straw composting turning solution. It effectively overcomes the drawbacks of traditional manual turning, such as high labor intensity and cost, makes full use of existing small agricultural equipment, and achieves flexible functional expansion and optimization through ingenious structural design. It is particularly suitable for small-scale agricultural operators to carry out ecological and resource-recycling straw composting production. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0023] Figure 2 This is a schematic diagram of the structure of a conventional small agricultural loader in an embodiment of this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the bucket, the connecting part, and the straw fork in the embodiment of this utility model;
[0025] Figure 4 This is an exploded view of the structure of the bucket, the connecting part, and the straw fork in the embodiment of this utility model;
[0026] Figure 5 This is a schematic diagram of the structure of the adapter in an embodiment of the present utility model;
[0027] Figure 6 This is a schematic diagram of the adapter from another perspective in an embodiment of this utility model;
[0028] Figure 7 This is a schematic diagram of the straw fork in an embodiment of the present invention;
[0029] Figure 8 This is a schematic diagram of the straw fork in another embodiment of the present invention;
[0030] Figure 9 This is a morphological diagram of an embodiment of the present utility model;
[0031] Figure 10 This is another embodiment of the present utility model;
[0032] Figure 11 This is a schematic diagram of another structure of the straw fork in this embodiment of the present invention.
[0033] Reference numerals: 1. Small agricultural loader; 2. Bucket; 3. Short fork teeth; 31. Main body; 32. Angled part; 4. Adapter part; 41. Sleeve tooth part; 411. Sleeve part; 412. First hollow cavity; 413. Snap-fit groove; 42. Plate-shaped bridging part; 5. Straw fork; 51. Mounting part; 511. Second hollow cavity; 512. Auxiliary mounting plate; 52. Long strip fork body; 521. Arc-shaped bending part. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the following describes the implementation of a straw composting turning device according to this utility model, in conjunction with specific application scenarios. It should be emphasized that the following embodiments are merely specific examples provided for understanding the core concept and implementation of this utility model, and do not constitute a limitation on the scope of protection of this utility model.
[0035] Example 1: Basic installation and application of a straight fork (e.g.) Figure 1-11 (As shown)
[0036] 1. Equipment preparation: such as Figure 2 As shown, select an existing small agricultural loader 1, which is equipped with a standard bucket 2 at the front end. A row of short fork teeth 3 (no less than 7 in number) are pre-fixed and evenly distributed on the lower edge of the bucket 2.
[0037] 2. Adapter installation:
[0038] (1) Fit the toothed part 41 of the adapter 4 onto the outside of the short fork tooth 3 on the lower edge of the bucket 2 one by one. During operation, align the opening of the first hollow cavity 412 of the toothed part 41 with the short fork tooth 3, and push it backward along the length direction of the short fork tooth 3 until the short fork tooth 3 is completely accommodated in the first hollow cavity 412 to achieve limiting contact.
[0039] (2) At the same time, ensure that the locking groove 413 at the opening of the sleeve tooth part 41 is tightly engaged on the lower edge of the bucket 2 to form a limit.
[0040] (3) Using bolts or other fasteners, pass them through the pre-set connection holes on the plate-shaped bridging part 42 of the adapter part 4 and fix it to the inner wall of the bucket 2 in a detachable threaded connection. At this time, the adapter part 4 is firmly attached to the lower edge of the bucket 2 and the short fork tooth 3 as a whole.
[0041] 3. Straw fork installation (straight type):
[0042] (1) Based on the width of the straw pile to be turned and the operational requirements, select an appropriate number of long strip forks 52 (the top of the mounting part 51 may or may not have an auxiliary mounting plate 512).
[0043] (2) Align the opening of the second hollow cavity 511 of the straw fork 5 mounting part 51 with the sleeve part 411 of the adapter part 4 (i.e. the exposed cuboid part of the sleeve tooth part 41), and insert it backward along the length direction of the sleeve part 411 so that the second hollow cavity 511 and the outer surface of the sleeve part 411 are tightly abutted.
[0044] (3) Use bolts or other fasteners to pass through the threaded connection hole at the top of the mounting part 51 and connect to the threaded hole (or nut) at the top of the sleeve part 411 and tighten them.
[0045] (4) (If the straw fork 5 has an auxiliary mounting plate 512): After the above connection is completed, the auxiliary mounting plate 512 is placed on the top surface of the bridging part of the adapter 4. The auxiliary mounting plate 512 is detachably threaded to the bridging part using fasteners to further enhance the overall structural rigidity.
[0046] 4. Turning over the pile:
[0047] (1) The driver operates the small agricultural loader 1 and lowers the boom equipped with the modified bucket 2 (with a straight straw fork 5) so that the straight fork is inserted into the bottom or side of the target straw pile at a certain angle.
[0048] (2) Operate the loader to move forward slowly, while raising the boom appropriately and coordinating with the tilting action of the bucket 2 (such as a slight backward tilt). The straight fork can effectively insert into the relatively compact, bundled long straw pile due to its straight penetrating force.
[0049] (3) After the fork is inserted into the pile, the straw material above the fork is lifted, loosened and scattered by raising the boom and / or tilting the bucket 2. This action breaks the original structure of the pile, realizes deep turning, and significantly improves the ventilation inside the pile.
[0050] (4) Repeat the above actions of inserting, picking up, and scattering, and move the loader along the length of the pile or as needed to complete the turning operation of the entire pile. After the operation is completed, the loader can gather the loosened material back into a pile.
[0051] Example 2: Application and Form Advantages of S-shaped Forks (e.g.) Figure 1-11 (As shown)
[0052] 1. Equipment preparation and adapter installation: Same as steps 1 and 2 in Example 1.
[0053] 2. Straw fork installation (S-type):
[0054] When the straw to be processed is relatively loose and short (such as chopped corn stalks, wheat stalks, etc.), an S-shaped long fork 52 is selected (the fork usually has a bending part 521 designed in the middle). The installation steps are the same as step 3 of embodiment one, and the mounting part 51 of the S-shaped straw fork 5 is sleeved and fixed on the sleeve part 411 of the adapter part 4.
[0055] 3. Turning operation (advantages of the S-shaped forklift are evident):
[0056] (1) The driver operates the loader to insert the S-shaped forks into the straw pile. The S-shaped curved structure and the design of the bending part 521 in the middle enable the forks to more effectively grab, stir and accommodate loose and short straw materials during insertion, reducing the situation where materials slip from between the fork teeth.
[0057] (2) During the lifting of the boom and the tipping of the bucket 2, the curved surface and bends of the S-shaped fork can better lift, raise and disperse the material, resulting in a more thorough scattering effect. This stirring and scattering is particularly beneficial for breaking up any clumps that may form, and promoting the mixing and oxygen exchange of materials in different parts of the pile.
[0058] (3) The design of the bending section 521 also helps to break the hardened layer that may form on the surface of the pile, making the turning of the pile deeper and more thorough.
[0059] (4) The operation process is the same as in Example 1, but the S-type fork body shows higher operating efficiency and better loosening effect when handling loose materials.
[0060] Example 3: On-demand assembly and function switching
[0061] 1. Small-scale stacking operations: If the stack size is small, it is not necessary to install all the straw forks 5. The required number of straw forks 5 (straight or S-shaped) can be selectively installed at intervals on the adapter 4, which can meet the operation requirements and save some installation time and potential wear of the forks.
[0062] 2. Restore Bucket Function: When the turning operation is completed and the loader needs to restore its normal bucket function for other operations (such as shoveling and transporting soil, fertilizer, etc.):
[0063] (1) Sequentially remove the fasteners on the top of the straw fork 5 mounting part 51 (and the auxiliary mounting plate 512) that secure the straw fork 5.
[0064] (2) Push the straw fork 5 outward so that the second hollow cavity 511 of its mounting part 51 is disengaged from the sleeve part 411 of the adapter part 4.
[0065] (3) (Optional) If it is believed that the adapter 4 affects the normal operation of the bucket 2, the fasteners that fix the adapter 4 bridging part and the inner wall of the bucket 2 can be further removed, and then the entire adapter 4 can be slid forward from the short fork tooth 3 and the edge of the bucket 2 to remove it.
[0066] (4) At this point, the loader bucket 2 returns to its original state and can be used normally for loading. The entire disassembly process is quick and convenient.
[0067] As can be seen from the above embodiments, the straw composting turning device of this utility model, through its innovative transfer structure and replaceable straw fork 5 design, endows ordinary small agricultural loader 1 bucket 2 with efficient and flexible straw turning capabilities, perfectly meeting the actual needs of small farmers and ecological farms.
[0068] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A straw composting turning device, comprising a small agricultural loader equipped with a bucket, wherein at least seven short forks are evenly distributed along the edge of the lower side of the bucket, each short fork comprising a main body and an inclined portion disposed at the front end of the main body, the front end of the main body protruding outward from the outer edge of the bucket, and the rear end of the main body being fixedly connected to the inner edge of the bucket, characterized in that: It also includes a transition part that is sleeved on the outside of the short fork teeth and fixedly connected to the lower edge of the bucket, and a straw fork that can be detachably sleeved on the transition part; The adapter includes a single-opening sleeve portion that fits onto the outside of the short fork tooth and a plate-shaped bridging portion that fixes two adjacent sleeve portions; the sleeve portion includes a cuboid-shaped bridging portion, a first hollow cavity that matches the short fork tooth, and a snap-fit groove that matches the lower edge of the bucket and is provided at the opening of the first hollow cavity; during installation, the first hollow cavity abuts against the short fork tooth, the snap-fit groove abuts against the lower edge of the bucket, and the bridging portion is detachably threaded to the inner wall of the bucket; The straw fork includes a mounting part that is detachably sleeved on the sleeve and an elongated fork body. The mounting part and the elongated fork body are integrally formed and connected. The mounting part includes a second hollow cavity that matches the sleeve. During installation, the second hollow cavity abuts against the sleeve. The top of the mounting part is detachably threaded to the sleeve.
2. The straw composting turning device according to claim 1, characterized in that: The elongated fork is either in a straight line or an S-shape.
3. The straw composting turning device according to claim 2, characterized in that: The long, narrow fork has a bend in the middle.
4. The straw composting turning device according to claim 1, characterized in that: An auxiliary mounting plate extends from the top of the mounting part away from the elongated fork body; the bottom surface of the auxiliary mounting plate abuts against the top surface of the bridging part and the two are detachably threaded together.