Ventilation window assembly

Abstract

The utility model discloses a ventilating window assembly, and relates to the technical field of granary ventilation automation. The ventilation window assembly is installed at a ventilation opening of the granary and comprises a window body, a connecting rod, a power piece, a stroke detection structure and a control system. Wherein the window body is movably arranged at the ventilation opening; the connecting rod is movably connected with the window body; the power piece is in transmission connection with the connecting rod to drive the window body to open or close the ventilation opening; the stroke detection structure is arranged on the power piece and used for detecting the rotation stroke of an output shaft of the power piece. The control system is electrically connected with the stroke detection structure and the power piece. When the ventilation opening is completely opened or closed, the stroke detection structure can transmit information to the control system so that the output shaft can stop rotating. According to the technical scheme, automatic opening and closing of the ventilation window assembly are achieved, and automation of grain storage operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of automated ventilation technology for grain warehouses, and in particular to a ventilation window assembly. Background Technology

[0002] In recent years, green grain storage has been increasingly promoted, and with the continuous improvement of grain storage management, grain quality has also improved. The intelligent upgrading and transformation of grain silos has become an indispensable process in green grain storage. During the grain storage process, the ventilation system of the grain silo plays a crucial role.

[0003] Currently, to ensure the health and safety of grain storage, ventilation windows are typically opened or closed manually. However, traditional manual control methods are inconvenient in terms of efficiency and maintenance, and cannot meet the needs of automation. Utility Model Content

[0004] The main purpose of this invention is to propose a ventilation window assembly, which aims to realize the automatic opening and closing of the ventilation window in a grain warehouse and improve the automation of grain storage operations.

[0005] To achieve the above objectives, the ventilation window assembly proposed in this utility model, installed at the ventilation opening of a grain silo, includes:

[0006] The window is movable at the ventilation opening;

[0007] The connecting rod is movably connected to the window.

[0008] A power component is connected to the connecting rod to drive the window to open or close the ventilation opening;

[0009] A stroke detection structure is disposed on the power component, the stroke detection structure being used to detect the rotational stroke of the output shaft of the power component; and,

[0010] The control system is electrically connected to the stroke detection structure and the power component;

[0011] When the vent is fully open or closed, the stroke detection structure transmits information to the control system to stop the output shaft from rotating.

[0012] In one embodiment, the travel detection structure includes:

[0013] Conductive switching elements; and,

[0014] A trigger element is fixedly connected to the output shaft of the power element, and the power element can drive the trigger element to rotate so as to contact the conductive switching element.

[0015] In one embodiment, the trigger includes a fixed ring and a toggle shaft, the fixed ring being fixed to one end of the output shaft of the power component, and the toggle shaft being disposed on the fixed ring.

[0016] In one embodiment, two stroke detection structures are provided, and the two conductive switching elements of the two stroke detection structures are located on opposite sides of the output shaft, and an included angle is formed between the two toggle shafts of the two stroke detection structures;

[0017] Wherein, the included angle is greater than or equal to 90 degrees and less than or equal to 120 degrees.

[0018] In one embodiment, the ventilation window assembly further includes:

[0019] A drive shaft sleeve is fitted onto one end of the output shaft, and the drive shaft sleeve is connected to the connecting rod.

[0020] In one embodiment, the power component is configured as a geared motor.

[0021] In one embodiment, the connecting rod includes:

[0022] The upright is connected to the power component via a transmission.

[0023] The first connecting rod is fixed to the upright; and,

[0024] The second link has one end rotatably connected to the first link, and the other end of the second link rotatably connected to the window.

[0025] In one embodiment, the ventilation window assembly further includes:

[0026] A first fixing member is provided on the wall of the grain silo and located at the end of the upright that is away from the power member. The first fixing member is rotatably connected to the upright.

[0027] In one embodiment, the ventilation window assembly further includes:

[0028] The mounting base is fixed to the wall of the grain silo, and the power component is fixed to the mounting base.

[0029] In one embodiment, the mounting base includes:

[0030] The first protective cover is fixed to the power component and covers the outside of the power component and the stroke detection structure.

[0031] The technical solution of this utility model involves installing a ventilation window assembly at the ventilation opening of a grain silo, and incorporating a window body, connecting rod, power component, stroke detection structure, and control system within the assembly. The window body is movably located at the ventilation opening; the connecting rod is movably connected to the window body; the power component is driven by the connecting rod to open or close the ventilation opening; the stroke detection structure is located on the power component and detects the rotational stroke of its output shaft; the control system is electrically connected to the stroke detection structure and the power component. When the ventilation opening is fully open or closed, the stroke detection structure transmits information to the control system to stop the output shaft from rotating. Compared to existing grain silo ventilation windows that are manually controlled, this utility model's solution incorporates a power component, a stroke detection structure, and a control system. The control system can control the operation of the power component to open or close the ventilation opening, and the stroke detection structure enables precise control of the power component by the control system, thereby achieving automatic opening and closing of the ventilation window assembly and improving the automation of grain storage operations. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the structure of an embodiment of the ventilation window assembly provided by this utility model;

[0034] Figure 2 for Figure 1 An internal structural diagram of an embodiment at point A;

[0035] Figure 3 for Figure 2 A partial exploded view of one embodiment;

[0036] Figure 4 for Figure 1 A schematic diagram of one embodiment of the first fixing member.

[0037] Explanation of icon numbers:

[0038] 100. Form;

[0039] 200, connecting rod; 210, upright; 220, first connecting rod; 230, second connecting rod;

[0040] 300. Power component; 310. Output shaft; 320. Drive shaft sleeve; 330. Mounting bracket;

[0041] 410. Conductive switching element; 420. Retaining ring; 430. Actuating shaft;

[0042] 500. Mounting base; 510. First protective cover; 520. Protective plate;

[0043] 600, First fixing component; 610, Bearing; 620, Fixing bracket; 630, Rotating shaft; 640, Second protective cover;

[0044] 700. Second fastener.

[0045] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0047] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0048] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0049] In recent years, green grain storage has been increasingly promoted, and with the continuous improvement of grain storage management, grain quality has also improved. The intelligent upgrading and transformation of grain silos has become an indispensable process in green grain storage. During the grain storage process, the ventilation system of the grain silo plays a crucial role.

[0050] Currently, to ensure the health and safety of grain storage, ventilation windows are typically opened or closed manually. However, traditional manual control methods are inconvenient in terms of efficiency and maintenance, and cannot meet the needs of automation.

[0051] This utility model proposes a ventilation window assembly to realize the automatic opening and closing of the ventilation window in a grain warehouse, thereby improving the automation of grain storage operations.

[0052] Please refer to 1 to Figure 3 In one embodiment, a ventilation window assembly is installed at the ventilation opening of the grain silo. The ventilation window assembly includes a window body 100, a connecting rod 200, a power component 300, a stroke detection structure, and a control system.

[0053] Window 100 is movably mounted to the ventilation opening. In one embodiment, one side of window 100 is movably mounted to the ventilation opening via a hinge, and window 100 can rotate relative to the ventilation opening to open or close the ventilation opening. Of course, in other embodiments, window 100 can also be movably mounted to the ventilation opening via a pin or other means; this is not a limitation. The size and shape of window 100 can be flexibly set according to the shape and size of the ventilation opening to ensure that window 100 can completely cover the ventilation opening; the shape and size of window 100 are not limited here.

[0054] The connecting rod 200 is movably connected to the window 100. In one embodiment, the connecting rod 200 includes a vertical rod 210, a first connecting rod 220, and a second connecting rod 230. The first connecting rod 220 is fixed to the vertical rod 210, one end of the second connecting rod 230 is rotatably connected to the first connecting rod 220, and the other end of the second connecting rod 230 is rotatably connected to the window 100. The rotation of the vertical rod 210 drives the first connecting rod 220 to rotate synchronously, thereby driving the second connecting rod 230 to move to open or close the ventilation opening. In one embodiment, the vertical rod 210 is located on the wall of the grain silo and is close to the side of the window 100 connected to the ventilation opening, and the second connecting rod 230 is movably connected to the side of the window 100 away from the vertical rod 210. Further, in one embodiment, one end of the first connecting rod 220 is welded to the vertical rod 210 to rotate synchronously with the vertical rod 210. Of course, in other embodiments, the first connecting rod 220 and the vertical rod 210 can also be fixedly connected by means of screwing, riveting, or integral molding, etc., which is not limited here. In one embodiment, the first link 220 and the second link 230, as well as the first link 220 and the window 100, are all movably connected by pins. Of course, in other embodiments, the first link 220 and the second link 230, as well as the first link 220 and the window 100, can also be movably connected by hinges or other means. No specific limitations are made here. Thus, the rotatable connection of the first link 220 and the second link 230 increases the lever arm of the second link 230, enabling the rotational force of the upright 210 to be effectively transmitted to the second link 230. Simultaneously, it reduces the impact force between the first link 220 and the upright 210, thereby improving the service life of the ventilation window assembly.

[0055] The power component 300 is connected to the connecting rod 200 to drive the window 100 to open or close the ventilation opening. Specifically, in one embodiment, the output shaft 310 of the power component 300 extends to opposite sides of the power component 300, and one end of the output shaft 310 is connected to the upright rod 210. Specifically, in one embodiment, a transmission shaft sleeve 320 is fitted onto one end of the output shaft 310, and the upright rod 210 is connected to the transmission shaft sleeve 320. Of course, in other embodiments, the output shaft 310 and the upright rod 210 can also be connected by welding, snap-fitting, or bonding, etc. Here, the connection method between the output shaft 310 and the upright rod 210 is not limited. In one embodiment, the power component 300 is configured as a geared motor. The output shaft 310 of the geared motor can provide high torque and control precision to ensure that the ventilation opening can be opened or closed smoothly, and can also make the movement of the window 100 more stable. Of course, in other embodiments, the power component 300 can also be a stepper motor, a servo motor, a pneumatic or hydraulic system, etc., etc. Here, no specific limitation is made. Thus, the power unit 300 is configured as a geared motor, which can improve the reliability of the ventilation window assembly. When the power unit 300 is running, the output shaft 310 drives the upright 210 to rotate, the first connecting rod 220 rotates synchronously, and then the second connecting rod 230 applies a push or pull force to the window 100 to close or open the ventilation opening, realizing the automatic opening and closing of the ventilation window assembly.

[0056] A stroke detection structure is located on the power component 300, and is used to detect the rotational stroke of the output shaft 310 of the power component 300. The control system is electrically connected to the stroke detection structure and the power component 300. In one embodiment, the stroke detection structure is located close to the output shaft 310, and the stroke detection structure and the upright 210 are located at opposite ends of the output shaft 310. In one embodiment, the stroke detection structure has a preset stroke, which is the rotational stroke required for the power component 300 to drive the connecting rod 200 to rotate to fully open or close the vent. The preset stroke can be flexibly set according to actual needs, and is not limited here.

[0057] When it is necessary to open or close the ventilation window, the control system controls the power component 300 to start running, driving the connecting rod 200 to rotate and gradually open or close the ventilation opening; when the ventilation opening is fully open or closed, the stroke detection structure detects that the rotation stroke of the output shaft 310 has reached the preset stroke, the stroke detection structure will output a signal and transmit the signal to the control system, and the control system will control the power component 300 to stop running.

[0058] The technical solution of this utility model involves installing a ventilation window assembly at the ventilation opening of a grain silo, and including a window body 100, a connecting rod 200, a power component 300, a stroke detection structure, and a control system within the ventilation window assembly. The window body 100 is movably mounted at the ventilation opening; the connecting rod 200 is movably connected to the window body 100; the power component 300 is drively connected to the connecting rod 200 to drive the window body 100 to open or close the ventilation opening; the stroke detection structure is located on the power component 300 and is used to detect the rotational stroke of the output shaft 310 of the power component 300; the control system is electrically connected to the stroke detection structure and the power component 300. When the ventilation opening is fully open or closed, the stroke detection structure transmits information to the control system to stop the output shaft 310 from rotating. Compared to the existing technology of manually controlled opening and closing of grain warehouse ventilation windows, the technical solution of this utility model is equipped with a power component 300, a stroke detection structure and a control system. The control system can control the operation of the power component 300 to open or close the ventilation opening, and the stroke detection structure can realize the precise control of the power component 300 by the control system, thereby realizing the automatic opening and closing of the ventilation window assembly and improving the automation of grain storage operations.

[0059] Please see Figure 2 and Figure 3 In one embodiment, the stroke detection structure includes a conductive switch element 410 and a trigger element. The trigger element is fixedly connected to the output shaft 310 of the power element 300. The power element 300 can drive the trigger element to rotate so as to contact the conductive switch element 410.

[0060] In one embodiment, the trigger includes a retaining ring 420 and a toggle shaft 430. The retaining ring 420 is fixed to one end of the output shaft 310 of the power component 300, and the toggle shaft 430 is disposed on the retaining ring 420. In one embodiment, the retaining ring 420 is sleeved on and fixed to one end of the output shaft 310, and one end of the toggle shaft 430 is fixed to the retaining ring 420. The other end of the toggle shaft 430 is used to contact the conductive switching element 410. In one embodiment, the conductive switching element 410 is a micro switch, and the conductive switching element 410 has contacts. When the toggle shaft 430 touches the conductive switching element 410, it will cause the contacts in the conductive switching element 410 to close. The control system will receive the signal of contact closure, and then control the power component 300 to stop operating. In one embodiment, the conductive switching element 410 is located on one side of the output shaft 310. Rotation of the output shaft 310 drives the toggle shaft 430 to rotate, causing the toggle shaft 430 to gradually approach and eventually contact the conductive switching element 410. The rotational distance required for the output shaft 310 to drive the toggle shaft 430 to contact the conductive switching element 410 is called the preset distance. Specifically, in one embodiment, the length of the toggle shaft 430 is greater than the distance between the conductive switching element 410 and the output shaft 310 to ensure that the toggle shaft 430 contacts the conductive switching element 410. The specific length of the toggle shaft 430 is not limited here.

[0061] Please continue reading. Figure 2 and Figure 3In one embodiment, two stroke detection structures are provided, each used to detect the rotational stroke of the output shaft 310 when the vent is opened and closed. Specifically, in one embodiment, the two conductive switching elements 410 of the two stroke detection structures are located on opposite sides of the output shaft 310. The power component 300 is provided with a mounting bracket 330, which is positioned close to the output shaft 310, and the two conductive switching elements 410 are fixed to the mounting bracket 330. Further, in one embodiment, the two fixing rings 420 of the two stroke detection structures are sequentially fixed to the same end of the output shaft 310, and an included angle is formed between the two actuating shafts 430. In one embodiment, the included angle is greater than or equal to 90 degrees and less than or equal to 120 degrees to avoid mutual interference between the two actuating shafts 430, and to avoid excessively long rotational strokes required to open or close the vent, thus ensuring the reliability of the ventilation window assembly. Here, no specific limitation is made on the included angle between the two actuating shafts 430. Of course, in other embodiments, only one stroke detection structure may be provided, which only detects the rotational stroke of the output shaft 310; here, no limitation is made on the specific number of stroke detection structures. Of course, in other embodiments, the stroke detection structure can also be configured as a position sensor and a positioning element, with the positioning element located on the output shaft 310, and the position sensor detecting the position of the positioning element to detect the rotational stroke of the output shaft 310. Here, no specific form of the stroke detection structure is limited.

[0062] Thus, when the ventilation window needs to be opened, the control system activates the power component 300, causing the connecting rod 200 to rotate and gradually open the ventilation opening. Simultaneously, it causes a toggle shaft 430 to gradually approach a conductive switch element 410. When the ventilation opening is fully open, the toggle shaft 430 contacts the conductive switch element 410, which transmits a signal to the control system, causing the control system to stop the power component 300. When the ventilation window needs to be closed, the control system activates the power component 300, causing the connecting rod 200 to rotate and gradually close the ventilation opening. Simultaneously, it causes another toggle shaft 430 to gradually approach another conductive switch element 410. When the ventilation opening is fully closed, the other toggle shaft 430 contacts another conductive switch element 410, which transmits a signal to the control system, causing the control system to stop the power component 300.

[0063] The technical solution of this utility model embodiment realizes the automatic opening and closing of the grain silo ventilation window by setting the stroke detection structure as a conductive switch element 410 and a trigger element, thereby improving the automation of grain storage operations. The trigger element is set as a fixed ring 420 and a toggle shaft 430. The conductive switch element 410 is triggered upon contact between the toggle shaft 430 and the conductive switch element 410, resulting in a simple structure and easy operation. Simultaneously, two stroke detection structures are set up, and the two stroke detection devices are independent of each other, improving the accuracy of window 100 control and enhancing the reliability of the ventilation window assembly. Furthermore, the included angle between the two toggle shafts 430 reduces the rotational stroke of the output shaft 310, preventing overload operation of the power component 300 and improving the safety of the ventilation window assembly.

[0064] Please see Figure 1 and Figure 4 In one embodiment, the ventilation window assembly further includes a first fixing member 600, which is disposed on the wall of the grain silo and located at the end of the upright 210 away from the power member 300, and the first fixing member 600 is rotatably connected to the upright 210.

[0065] In one embodiment, the first fixing member 600 includes a fixing bracket 620, a bearing 610, and a rotating shaft 630. The fixing bracket 620 is fixed to the wall of the grain silo, the bearing 610 is fixed to the fixing bracket 620, and the rotating shaft 630 is disposed on the bearing 610 and connected to the upright 210, so as to ensure that the upright 210 can rotate while positioning it. Further, in one embodiment, the first fixing member 600 also includes a second protective cover 640, which is fixed to the wall of the grain silo and covers the outside of the bearing 610 to protect the bearing 610 and the rotating shaft 630, ensuring that the upright 210 can rotate normally. The material of the second protective cover 640 can be polycarbonate, polypropylene, or aluminum alloy, which have good waterproof performance and high hardness, and there is no limitation. Of course, in other embodiments, the first fixing member 600 may only be provided with a ball bearing, which is directly sleeved on the end of the upright 210 away from the power component 300. The specific structure of the first fixing member 600 is not limited here. Further, in one embodiment, the ventilation window assembly also includes a second fixing member 700, which is fixed to the wall of the grain silo and located between the first fixing member 600 and the power member 300 to limit the position of the upright 210. In one embodiment, the second fixing member 700 may be configured as a ball bearing to ensure that the upright 210 can rotate while limiting its position. Of course, in other embodiments, the second fixing member 700 may also be a limiting bracket with a guide groove, and the upright 210 has a corresponding guide block that is embedded in the guide groove and can slide along the guide groove. The specific structure of the second fixing member 700 is not limited here.

[0066] In this embodiment of the invention, a first fixing member 600 positions the upright 210 against the wall of the grain silo. The first fixing member 600 is rotatably connected to the upright 210, ensuring that the upright 210 can rotate to open or close the ventilation opening while being positioned, thus ensuring the automatic opening and closing function of the ventilation window assembly. The second protective cover 640 protects the relevant structures from contamination and impact, thereby improving the service life of the ventilation window assembly.

[0067] Please see Figures 1 to 3 In one embodiment, the ventilation window assembly further includes a mounting base 500 fixed to the wall of the grain silo, and a power component 300 fixed to the mounting base 500.

[0068] The mounting base 500 provides a mounting foundation for the power component 300. In one embodiment, the mounting base 500 includes a side plate and a top plate. The side plate is fixed to the wall of the grain silo, the power component 300 is fixed to the top plate, and the stroke detection structure is located on the side of the power component 300 away from the top plate. The top plate has an opening, through which the output shaft 310 is connected to the upright 210. In one embodiment, the mounting base 500 also includes a first protective cover 510. The first protective cover 510 is fixed to the side of the power component 300 away from the side plate and covers the power component 300 and the stroke detection structure to protect them. The materials of the mounting base 500 and the first protective cover 510 can be polycarbonate, polypropylene, or aluminum alloy, which have good waterproof performance and high hardness. No specific limitations are placed on the mounting base 500 and the first protective cover 510. Further, in one embodiment, the mounting base 500 also includes a protective plate 520, which is located at the opening and is used to protect the connection between the output shaft 310 and the upright 210. Of course, in other embodiments, the mounting base 500 can also be directly configured as a housing with a receiving cavity, and the power component 300 is disposed within the receiving cavity. Here, the specific structure of the mounting base 500 is not limited.

[0069] The technical solution of this utility model embodiment, by setting up a mounting base 500, which includes a first protective cover 510, provides support for the power component 300 while protecting the power component 300 and the stroke detection structure, ensuring the realization of the automatic opening and closing function of the ventilation window assembly, and further improving the service life of the ventilation window assembly.

[0070] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A ventilation window assembly, installed at the ventilation opening of a grain silo, characterized in that, include: The window is movable at the ventilation opening; The connecting rod is movably connected to the window. A power component is connected to the connecting rod to drive the window to open or close the ventilation opening; A stroke detection structure is provided on the power component, and the stroke detection structure is used to detect the rotational stroke of the output shaft of the power component; as well as, The control system is electrically connected to the stroke detection structure and the power component; When the vent is fully open or closed, the stroke detection structure transmits information to the control system to stop the output shaft from rotating.

2. The ventilation window assembly as claimed in claim 1, characterized in that, The stroke detection structure includes: Conductive switching elements; and, A trigger element is fixedly connected to the output shaft of the power element, and the power element can drive the trigger element to rotate so as to contact the conductive switching element.

3. The ventilation window assembly as described in claim 2, characterized in that, The triggering element includes a fixed ring and a toggle shaft. The fixed ring is fixed to one end of the output shaft of the power element, and the toggle shaft is located on the fixed ring.

4. The ventilation window assembly as described in claim 3, characterized in that, The stroke detection structure is provided in two parts, and the two conductive switching elements of the two stroke detection structures are located on opposite sides of the output shaft, and an included angle is formed between the two toggle shafts of the two stroke detection structures. Wherein, the included angle is greater than or equal to 90 degrees and less than or equal to 120 degrees.

5. The ventilation window assembly as claimed in claim 1, characterized in that, The ventilation window assembly also includes: A drive shaft sleeve is fitted onto one end of the output shaft, and the drive shaft sleeve is connected to the connecting rod.

6. The ventilation window assembly as claimed in claim 1, characterized in that, The power component is configured as a geared motor.

7. The ventilation window assembly as claimed in claim 1, characterized in that, The connecting rod includes: The upright is connected to the power component via a transmission. The first connecting rod is fixed to the upright; and, The second link has one end rotatably connected to the first link, and the other end rotatably connected to the window.

8. The ventilation window assembly as claimed in claim 7, characterized in that, The ventilation window assembly also includes: A first fixing member is provided on the wall of the grain silo and located at the end of the upright that is away from the power member. The first fixing member is rotatably connected to the upright.

9. The ventilation window assembly as claimed in claim 1, characterized in that, The ventilation window assembly also includes: The mounting base is fixed to the wall of the grain silo, and the power component is fixed to the mounting base.

10. The ventilation window assembly as claimed in claim 9, characterized in that, The mounting base includes: The first protective cover is fixed to the power component and covers the outside of the power component and the stroke detection structure.

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