A grain machine air port plug cap structure and a grain machine

By designing a snap-fit ​​plug structure on the grain machine's exhaust pipe, the problem of foreign objects and animals entering when the machine is idle is solved, thus protecting the equipment and ensuring its normal operation. This simplifies the operation process and reduces maintenance costs.

CN224320165UActive Publication Date: 2026-06-05SICHUAN CHANGHONG AIR CONDITIONER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN CHANGHONG AIR CONDITIONER CO LTD
Filing Date
2025-04-16
Publication Date
2026-06-05

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Abstract

The utility model provides a kind of grain machine air port plug cap structure, including plug cover, the side of plug cover is equipped with clamping slot, the clamping slot of plug cover is clamped on exhaust pipe, the side of plug cover away from exhaust pipe is equipped with several vent holes, it solves the problem that the air outlet of grain machine lacks protective device in the prior art, leading to the problem that foreign matter enters grain machine when grain machine is idle, affecting the normal work of grain machine.
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Description

Technical Field

[0001] This utility model relates to the field of grain cooler technology, and in particular to a grain cooler vent cap structure and a grain cooler. Background Technology

[0002] The mobile grain depot is a customized device developed based on systematic research into the ecological characteristics and climate patterns of grain storage in my country. It integrates refrigeration control, humidity management, and circulating ventilation technology systems. Through the synergistic effect of multiple parameters, it reduces thermal stress in grain piles, precisely controls the microenvironment parameters of grain silos, effectively curbs abnormal temperature rises, mold growth, and pest infestation in grain piles, and ensures the safety of grain storage. The core value of this equipment lies in its mobile emergency response capability. It can break through the spatial limitations of traditional fixed equipment, complete the cyclical cooling operation of multiple grain silos, and achieve dynamic optimization of equipment utilization.

[0003] After cooling the designated hopper, the operators will transfer it to the dedicated equipment storage area. It is worth noting that current grain thresholds have a prominent problem when idle: as shown in Figure 1, their air outlet is a cylindrical pipe. This open structure makes them highly susceptible to foreign object intrusion during downtime, especially in complex environments like warehouses. Lightweight pollutants such as suspended particles and paper scraps can easily enter the grain threshold with the airflow, contaminating the surfaces of precision components. More seriously, rodents may enter the equipment through the unprotected air outlet. Their gnawing behavior can not only damage the circuit insulation but also cause structural damage to core components. The resulting maintenance costs and potential operational risks will severely weaken the grain threshold's continuous operating capability. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a grain chaff outlet cap structure, which solves the problem that existing grain chaff outlets lack protective devices, causing foreign objects to enter the grain chaff when it is not in use and affecting its normal operation.

[0005] According to an embodiment of the present invention, a grain machine vent cap structure includes a cap, a slot is provided on one side of the cap, the cap is secured to the exhaust pipe through the slot, and a plurality of ventilation holes are provided through the side of the cap away from the exhaust pipe.

[0006] Compared with the prior art, this utility model has the following advantages: by using a plug to clamp onto the exhaust pipe of the grain machine, one end of the plug with a groove is clamped onto the exhaust pipe, and several ventilation holes are opened on the side of the plug away from the exhaust pipe, so as to prevent external debris from entering the grain machine through the exhaust pipe. When an external connecting pipe is required, the connecting pipe can also be directly clamped onto the step formed by the exhaust pipe and the plug. The installation is convenient and quick, without the need for complicated operations.

[0007] Furthermore, it also includes: a handle, which is located on the side of the cover away from the exhaust pipe.

[0008] Furthermore, there are two handles, which are symmetrically positioned on the side of the cover away from the exhaust pipe.

[0009] Furthermore, multiple support columns are provided on the side of the cover away from the exhaust pipe, and each handle is rotatably connected to the corresponding support column via a pivot.

[0010] Furthermore, each support column is provided with a limiting groove, with the opening of the limiting groove facing the inside of the plug.

[0011] This utility model also provides a grain machine, including the above-mentioned grain machine air vent cap structure, and further including: a machine housing, a fan installed inside the machine housing, the output end of the fan being connected to an exhaust pipe, and the machine housing being detachably connected to the mounting plate.

[0012] Furthermore, the exhaust pipe has a flange, and the groove of the plug is adapted to the flange.

[0013] Furthermore, the housing is connected to the mounting plate with screws.

[0014] Furthermore, the grain maker is equipped with casters at the bottom. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an existing grain processing machine.

[0016] Figure 2 This is a schematic diagram of the plug installation according to an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram showing the disassembly of the plug according to an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the plug structure according to an embodiment of the present utility model.

[0019] Figure 5 This is a schematic diagram of the plug structure from another perspective of an embodiment of the present utility model.

[0020] Figure 6 This is an exploded view of the plug structure according to an embodiment of the present utility model.

[0021] In the above attached diagram: 1. Exhaust pipe; 2. Cover; 201. Slot; 202. Ventilation hole; 3. Handle; 4. Support column; 5. Rotating shaft; 6. Limiting groove; 7. Housing; 8. Mounting plate; 9. Fan; 10. Flange; 11. Casters. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figures 2 to 6 As shown in the figure, this utility model embodiment proposes a grain chaff vent cap structure, including a cap 2. A groove 201 is provided on one side of the cap 2, allowing it to be secured to the exhaust pipe 1. Several ventilation holes 202 are provided through the side of the cap 2 facing away from the exhaust pipe 1. The exhaust pipe 1 is installed on the grain chaff. When the grain chaff is working, it discharges air of predetermined parameters through the exhaust pipe 1. The cap 2 is circular. When the grain chaff is idle, the side of the cap 2 with the groove 201 is secured to the exhaust pipe 1. The side of the exhaust pipe 1 with ventilation holes prevents large pieces of paper and animals such as mice from entering the grain chaff, effectively protecting the grain chaff. It should be noted that during subsequent use, the presence of the ventilation hole 202 will not affect the grain threshold from exhausting air to the designated location. If an external connecting pipe is required, it can be directly engaged with the protrusion formed by the plug 2 and the exhaust pipe 1, making connection convenient and not affecting the normal operation of the grain threshold. After the grain threshold has been running for a period of time, the ventilation hole 202 can be easily removed and cleaned if it becomes clogged. The plug 2 and the ventilation hole 202 on it eliminate the need for cumbersome operations and effectively prevent foreign objects from entering the grain threshold when it is not in use, thus avoiding interference with its normal operation. As an alternative connection method, the plug 2 and the exhaust pipe 1 can also be connected by a threaded connection.

[0024] like Figure 4 and Figure 6 As shown, it further includes a handle 3, which is located on the side of the cover 2 away from the exhaust pipe 1. In this embodiment, the handle 3 is located on the circumferential edge of the cover 2. The handle 3 makes it easier for the user to remove the cover 2 from the exhaust pipe 1, avoiding direct contact between the staff and the dust on the ventilation hole 202, and also making it more labor-saving.

[0025] like Figure 4 and Figure 6 As shown, furthermore, there are two handles 3, which are symmetrically arranged on the side of the cover 2 away from the exhaust pipe 1. The two handles 3 are arranged opposite each other on the circumferential edge of the cover 2. When installing or removing the cover 2 from the exhaust pipe 1, the operator can use both hands to pull the two handles 3 to apply force to the cover 2. When applying force, the force application point can be quickly located, making the installation and removal of the cover 2 faster, while avoiding the torque generated by single-point force on the handle 3, which would cause the handle 3 to deform.

[0026] like Figures 4 to 6As shown, furthermore, the side of the plug 2 facing away from the exhaust pipe 1 is provided with multiple support columns 4, and each handle 3 is rotatably connected to the corresponding support column 4 via a pivot 5. Specifically, in this embodiment, four support columns 4 are provided on the side of the plug 2 with the ventilation hole 202. The four support columns 4 are arranged in pairs, and each pair of support columns 4 is provided with a pivot 5. The two ends of the handle 3 are provided with insertion holes for the pivot 5 to be inserted, and the handle 3 is hinged to the support column 4 via the pivot 5. By hinged the handle 3, it is convenient for the worker to apply force in the direction of force.

[0027] like Figure 6 As shown, each support column 4 is further provided with a limiting groove 6, the opening of which faces the inside of the cover 2. In this embodiment, the limiting groove 6 is provided in the direction of the support column 4 near the inside of the cover 2 (i.e., the center direction of the circular cover 2), thereby limiting the rotation angle of the handle 3. In this embodiment, the limiting groove 6 has a square cross-section, which allows the handle 3 to rotate 90° towards the inside of the cover 2, making it easy to fold and store the handle 3. At the same time, the handle 3 will not rotate to an area outside the cover 2, reducing the space occupied. When connecting the external connecting pipe to the ventilation pipe, it will not interfere with the installation of the connecting pipe.

[0028] like Figures 2 to 3 As shown, this utility model also provides a grain thresher, including the aforementioned grain thresher vent cap structure, and further including: a housing 7 and a mounting plate 8. A fan 9 is installed inside the housing 7, and an exhaust pipe 1 is mounted on the mounting plate 8. The output end of the fan 9 is connected to the exhaust pipe 1. The housing 7 and the mounting plate 8 are detachably connected. The output end of the fan 9 is connected to the exhaust pipe 1 to discharge air of predetermined parameters to the outside through the exhaust pipe 1. The detachable connection between the mounting plate 8 and the housing 7 facilitates opening the housing 7 of the grain thresher for cleaning and maintenance of its interior.

[0029] like Figure 3 As shown, furthermore, a flange 10 is provided on the exhaust pipe 1, and the groove 201 of the plug 2 is adapted to the flange 10. The adaptation of the flange 10 to the groove 201 of the plug 2 effectively prevents the plug 2 from falling off the exhaust pipe 1. Preferably, the plug 2 can be made of an elastic material, such as rubber, so that it can be better secured to the exhaust pipe 1.

[0030] Furthermore, the housing 7 is connected to the mounting plate 8 by screws. By releasing the screws, the mounting plate 8 can be removed from the housing 7, allowing for the cleaning, replacement, or repair of the internal components of the housing 7.

[0031] like Figure 2 and Figure 3 As shown, the grain threshing machine is further equipped with casters 11 at its bottom. The casters 11 facilitate workers in moving the grain threshing machine to a predetermined location, enabling quick relocation of the machine in case of emergencies.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A grain mill vent cap structure, which is installed at the output end of the grain mill exhaust pipe (1), characterized in that, include: The plug (2) has a slot (201) on one side and is secured to the exhaust pipe (1) through the slot (201). Several ventilation holes (202) are provided on the side of the plug (2) away from the exhaust pipe (1).

2. The grain machine vent cap structure as described in claim 1, characterized in that, Also includes: Handle (3) is located on the side of the cover (2) away from the exhaust pipe (1).

3. The grain machine vent cap structure as described in claim 2, characterized in that: There are two handles (3), and the two handles (3) are symmetrically arranged on the side of the cover (2) away from the exhaust pipe (1).

4. The grain machine vent cap structure as described in claim 3, characterized in that: The plug (2) is provided with multiple support columns (4) on the side away from the exhaust pipe (1), and each handle (3) is rotatably connected to the corresponding support column (4) through a pivot (5).

5. The grain machine vent cap structure as described in claim 4, characterized in that: Each support column (4) has a limiting groove (6) with the opening of the limiting groove (6) facing the inside of the plug (2).

6. A grain threshing machine, characterized in that: The grain machine air vent cap structure according to any one of claims 1-5 is characterized in that it further includes: a housing (7) and a mounting plate (8), an exhaust pipe (1) is disposed on the mounting plate (8), a fan (9) is provided inside the housing (7), the output end of the fan (9) is connected to the exhaust pipe (1), and the housing (7) and the mounting plate (8) are detachably connected.

7. A grain threshing machine as described in claim 6, characterized in that: A flange (10) is provided on the exhaust pipe (1), and the groove (201) of the plug (2) is adapted to the flange (10).

8. A grain threshing machine as described in claim 7, characterized in that: The housing (7) is screwed to the mounting plate (8).

9. A grain threshing machine as described in claim 6, characterized in that: The grain threshold is equipped with casters (11) at the bottom.