A lower opening type exhaust roller blind device for farming

Abstract

This utility model belongs to the field of aquaculture equipment technology and provides a bottom-opening exhaust curtain device for aquaculture. The device includes a drive motor, a transmission mechanism, and an exhaust curtain. The drive motor drives and connects to the transmission mechanism, which includes a main steel wire rope and multiple auxiliary steel wire ropes extending from the main steel wire rope. The top of the exhaust curtain is fixed above the window structure, and the bottom of the exhaust curtain is provided with a suspension pipe connected to each auxiliary steel wire rope. The drive motor can change the opening degree of the exhaust curtain through the transmission mechanism, thereby adjusting the exhaust area of ​​the window structure. The device proposed in this utility model can make the opening stroke of the curtain consistent at all points, thereby allowing for precise and flexible adjustment of the exhaust area, ensuring that the aquaculture shed achieves the best ventilation effect, effectively preventing unfiltered air from outside the aquaculture shed from flowing back and polluting the air inside, optimizing the safety and epidemic prevention effect, and has the advantages of low cost, simple structure, and durability.

Description

Technical Field

[0001] This utility model belongs to the field of aquaculture equipment technology, specifically relating to a bottom-opening exhaust curtain device for aquaculture. Background Technology

[0002] In animal breeding sheds, pathogenic viruses are mainly transmitted through the air. Traditional breeding sheds have poor airtightness and cannot be automatically controlled, failing to meet the requirements for high-level biosafety and epidemic prevention housing. Unfiltered polluted outdoor air can easily enter the breeding sheds. Even if an exhaust system is installed, viruses may still flow back into the breeding sheds through leaks in the exhaust system, which is not conducive to disease prevention and control.

[0003] Commonly used devices in the ventilation system of livestock sheds include top-opening ventilation roller blinds. Water and snow easily accumulate below the opening of the top-opening roller blinds. Over time, the accumulated water and snow can easily lead to mold and bacterial growth, which can reduce the lifespan of the roller blinds and affect the health of the livestock. Although traditional spindle-shaped roller blinds are bottom-opening roller blinds, the adjustment process can easily lead to uneven height on both sides when the window is large, making them inconvenient to use. Utility Model Content

[0004] In order to overcome the defects of the prior art, this utility model proposes a bottom-opening exhaust curtain device for aquaculture, including a drive motor, a transmission mechanism and an exhaust curtain. The drive motor drives and connects to the transmission mechanism, and the transmission mechanism includes a main steel wire rope and multiple auxiliary steel wire ropes extending from the main steel wire rope.

[0005] The top of the exhaust roller shutter is fixed above the window structure, and the bottom of the exhaust roller shutter is provided with a suspension pipe connected to each of the auxiliary steel wire ropes;

[0006] The drive motor is used to drive the suspension pipe to rise or fall through the transmission mechanism, thereby adjusting the exhaust area of ​​the window structure by changing the degree of unfolding of the exhaust roller shutter.

[0007] Specifically, the exhaust roller shutter also includes multiple reinforcing ribs, each of which is perpendicular to the suspension pipe and disposed on the surface of the exhaust roller shutter, and at least one reinforcing rib is disposed on both sides of the exhaust roller shutter perpendicular to the suspension pipe.

[0008] Furthermore, the exhaust roller shutter also includes several counterweight tubes, any one of which is arranged parallel to the suspension tube on the surface of the exhaust roller shutter;

[0009] The spacing between any two adjacent reinforcing ribs is the same, and the spacing between any two adjacent counterweight tubes is the same.

[0010] Furthermore, the exhaust roller shutter is provided with a reinforcing rib at the position of each of the auxiliary steel wire ropes, and the exhaust roller shutter also includes a through-hole bolt at the junction of any of the reinforcing ribs and any of the counterweight tubes, and each of the auxiliary steel wire ropes passes through the through-hole bolt on the corresponding reinforcing rib.

[0011] Preferably, the exhaust roller shutter further includes a plurality of limiting rings installed on the reinforcing rib, and a gasket is connected to the side of the limiting ring near the suspension pipe. Any of the secondary steel wire ropes passes through the limiting ring and the gasket on the corresponding reinforcing rib.

[0012] Preferably, the drive motor includes a push rod motor, and the transmission mechanism includes a main pulley that is connected to the push rod of the push rod motor via the main wire rope, and a plurality of slave pulleys that are connected to the main pulley via the main wire rope.

[0013] The suspension pipe is connected to any of the pulleys via a secondary wire rope.

[0014] Preferably, the device further includes a windproof mechanism, which includes a sealing cloth and several windproof ropes;

[0015] The sealing cloth is disposed on both sides of the exhaust roller shutter perpendicular to the suspension pipe, and the windproof rope is fixed to the outer surface of the exhaust roller shutter by at least one fixing member disposed above the window structure and at least one fixing member disposed below the window structure.

[0016] Furthermore, the device also includes an adjustment module connected to the drive motor, the adjustment module being used to acquire external environmental information and / or adjustment command information and generate an adjustment signal.

[0017] Preferably, a nylon rope is embedded at the top of the ventilation roller shutter, and a groove for installing the nylon rope is provided above the window structure.

[0018] Preferably, a protective cover for covering the drive motor is provided on the outside of the drive motor.

[0019] This utility model has at least the following beneficial effects:

[0020] The bottom-opening exhaust curtain device for aquaculture proposed in this utility model controls the degree of opening of the exhaust curtain through a drive motor and transmission mechanism. This ensures that the opening stroke of the curtain is consistent at all points, thereby precisely adjusting the exhaust area of ​​the window structure, ensuring that the ventilation needs of the aquaculture environment are met, providing a more suitable growth environment for the aquaculture animals, and reducing the risk of disease transmission.

[0021] Furthermore, the bottom-opening exhaust roller shutter device for aquaculture proposed in this utility model enhances the structural stability of the exhaust roller shutter by setting multiple reinforcing ribs perpendicular to the suspension pipe on the surface of the exhaust roller shutter, preventing deformation or damage under wind or weight loads. The setting of the counterweight pipe can keep the exhaust roller shutter balanced, avoiding instability caused by wind or changes in the position of the roller shutter, and helping to keep the exhaust roller shutter from tilting during operation, ensuring the continuity of the exhaust effect. The consistent spacing of the reinforcing ribs and the suspension pipe ensures the uniformity and symmetry of the force on the exhaust roller shutter, which helps to improve the durability and stability of the exhaust roller shutter and prevent damage caused by excessive local stress. By designing through-hole bolts at the connection between the reinforcing ribs and the counterweight pipe, a tight fit between the wire rope and the exhaust roller shutter is ensured. The design of the limit ring buckle and the gasket helps to fix the auxiliary wire rope and reduce friction, ensuring that the auxiliary wire rope runs stably during lifting and lowering, is not easy to deviate or wear, and extends the service life of the device.

[0022] Furthermore, this device, driven by a push rod motor and a pulley transmission system, can precisely control the raising and lowering of the exhaust roller shutter. The sealing cloth in the windproof mechanism effectively prevents the exhaust roller shutter from being adversely affected by excessive wind, reducing the interference of the external environment on the ventilation effect. The windproof rope is fixed to the outer surface of the exhaust roller shutter through upper and lower fixing parts, which can increase the wind resistance of the exhaust roller shutter and reduce the risk of damage to the roller shutter in strong wind environments. The design of the top nylon rope and embedded grooves makes the exhaust roller shutter more firmly connected to the window structure, ensuring that the exhaust roller shutter is not easy to fall off or loosen during use. The protective cover on the outside of the drive motor can effectively protect the motor from environmental factors such as dust and moisture, extending the service life of the motor. The adjustment module enables the device to automatically adjust the opening degree of the exhaust roller shutter according to the external environmental information, improving the intelligence level of the device.

[0023] Therefore, this utility model provides a bottom-opening exhaust curtain device for aquaculture. The device proposed by this utility model can make the unfolding stroke of the curtain consistent at all points, thereby allowing for precise and flexible adjustment of the exhaust area, ensuring that the aquaculture house can achieve the best ventilation effect, effectively preventing unfiltered air from outside the aquaculture house from flowing back and polluting the air inside, optimizing the safety and epidemic prevention effect, and having the advantages of low cost, simple structure and durability. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1A schematic diagram of the module structure of the bottom-opening exhaust curtain device for aquaculture provided in Example 1;

[0026] Figure 2 A schematic diagram of the overall structure of the bottom-opening exhaust curtain device for aquaculture provided in Example 1;

[0027] Figure 3 This is an example diagram of a window structure.

[0028] Figure Labels

[0029] 1-Drive motor; 2-Transmission mechanism; 3-Exhaust curtain; 4-Adjustment module; 5-Rolling mechanism; 6-Windproof mechanism; 11-Protective cover; 21-Main steel wire rope; 22-Secondary steel wire rope; 23-Main pulley; 24-Driven pulley; 31-Suspension pipe; 32-Reinforcing rib; 33-Counterweight pipe; 34-Through-hole bolt; 35-Limiting ring; 36-Shim; 37-Nylon rope; 61-Windproof cloth; 62-Windproof rope; 63-Fixing component; 64-Groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Various embodiments of the present invention will be described more fully below. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather the present invention should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of the present invention.

[0032] In the following, the terms “comprising” or “may include”, which may be used in various embodiments of the present invention, indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms “comprising,” “having,” and their cognates are intended only to indicate a specific feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more combinations of features, numbers, steps, operations, elements, components, or combinations of the foregoing.

[0033] In various embodiments of this utility model, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0034] The terms used in the various embodiments of this utility model (such as "first," "second," etc.) may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above terms do not limit the order and / or importance of the elements. The above terms are only used for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of this utility model, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0035] It should be noted that, in this utility model, unless otherwise explicitly specified and defined, terms such as "installation," "connection," and "fixation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this utility model, those skilled in the art should understand that the terms indicating orientation or positional relationship in the text are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] The terminology used in the various embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the various embodiments of this invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this invention pertain. The terms (such as those defined in a generally used dictionary) are to be interpreted as having the same meaning as in the context of the relevant technical field and are not to be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this invention.

[0038] In recent years, viruses have become more frequent and widespread, and animals are highly susceptible to infection. Effective disinfection and disease prevention, as well as reasonable ventilation programs, are indispensable. Nowadays, livestock farms are highly intensive and modernized, and the equipment used is trending towards environmental protection and high-level safety and disease prevention.

[0039] However, due to the increasing impact of African swine fever, porcine reproductive and respiratory syndrome (PRRS) and other viruses, the difficulty of prevention and control has increased. High-density farming often causes great impact and losses to farmers due to the spread of diseases. Therefore, how to avoid African swine fever, PRRS and other diseases in raising pigs and other animals is a problem faced by every farming company.

[0040] In traditional farming models, the ventilation system in pigsties is not well controlled. Some pigsties have fans without backflow prevention devices at the end, while others only use louvers or other equipment as backflow prevention devices. These devices have poor airtightness and cannot be automatically controlled, failing to meet the requirements for high-level biosafety and disease prevention housing. Therefore, when the exhaust system returns air, it may carry unfiltered polluted outdoor air into the pigsty. This polluted air may contain viruses, which is detrimental to disease prevention and control.

[0041] Example 1

[0042] Please refer to Figures 1-3 This embodiment proposes a bottom-opening exhaust roller shutter device for aquaculture, including a drive motor 1, a transmission mechanism 2, an exhaust roller shutter 3, and an adjustment module 4. The drive motor 1 drives and connects to the transmission mechanism 2. The transmission mechanism 2 includes a main steel wire rope 21 and multiple auxiliary steel wire ropes 22 extending from the main steel wire rope 21. The top of the exhaust roller shutter 3 is fixed above the window structure, and the bottom of the exhaust roller shutter 3 is provided with a suspension pipe 31 connected to each of the auxiliary steel wire ropes 22.

[0043] The adjustment module 4 is used to acquire external environmental information and / or adjustment command information and generate adjustment signals. The drive motor 1 is used to receive the adjustment signals and drive the suspension pipe 31 to rise or fall through the transmission mechanism 2, thereby realizing the adjustment of the exhaust area of ​​the window structure by changing the degree of unfolding of the exhaust roller shutter 3.

[0044] It should be noted that the bottom-opening exhaust roller shutter 3 can reduce wind resistance and is more suitable for airflow. It can avoid the phenomenon of dead air at the bottom of the exhaust vent due to the vent opening being too high, ensuring that the bottom of the exhaust vent in the breeding house is also filled with fresh air. The all-round environment is conducive to the growth of the farmed animals. Moreover, the installation of the exhaust roller shutter 3 is conducive to precise ventilation control. It can prevent unfiltered polluted outdoor air from entering the breeding house while ensuring minimum ventilation volume, which is beneficial to disease prevention and control.

[0045] Optionally, the adjustment module 4 may include, but is not limited to, an adjustment terminal, a temperature sensor and / or a pressure sensor. For example, when the adjustment module 4 includes a temperature sensor and an environmental control computer as the adjustment terminal, the temperature sensor can acquire temperature information and send it to the environmental control computer. The environmental control computer can accept the temperature information and generate an adjustment signal based on a preset program or manual operation and send it to the control part in the drive motor 1, thereby causing the drive motor 1 to drive the transmission mechanism 2 accordingly based on the adjustment signal.

[0046] Therefore, the device proposed in this embodiment can realize intelligent and precise adjustment of the roller shutter, reduce manual intervention, save labor, and reduce the risk of disease transmission. On this basis, the exhaust roller shutter 3 can be equipped with both electric and manual adjustment modes. By adding manual adjustment mechanisms such as hand-cranked winches and adjustment buttons to the device, users can carry out maintenance operations on-site in the breeding house and deal with emergencies such as power outages in the breeding farm, thus avoiding situations such as animals suffocating in the breeding house due to the airtightness of the breeding house.

[0047] Specifically, the exhaust roller shutter 3 also includes multiple reinforcing ribs 32, any one of which is perpendicular to the suspension pipe 31 and is disposed on the surface of the exhaust roller shutter 3, and at least one reinforcing rib 32 is disposed on both sides of the exhaust roller shutter 3 perpendicular to the suspension pipe 31.

[0048] Furthermore, the exhaust roller shutter 3 also includes several counterweight pipes 33, any one of which is arranged parallel to the suspension pipe 31 on the surface of the exhaust roller shutter 3;

[0049] Preferably, the spacing between any two adjacent reinforcing ribs 32 is the same, and the spacing between any two adjacent counterweight tubes 33 is the same, thereby ensuring that the exhaust curtain 3 has relatively uniform strength; in an optional embodiment, the spacing between any two adjacent reinforcing ribs 32 can be selected within the range of 1m-2m, and the spacing between any two adjacent counterweight tubes 33 can be selected within the range of 1m-2m.

[0050] Furthermore, each of the exhaust roller shutters is provided with a reinforcing rib 32 at the position of each steel wire rope 22. The exhaust roller shutter 3 also includes a through-hole bolt 34 located at the junction of any reinforcing rib 32 and any counterweight pipe 33. Each steel wire rope 22 passes through the through-hole bolt 34 on its corresponding reinforcing rib 32 and is connected to the suspension pipe 31, thereby facilitating the exhaust roller shutter 3 to achieve online moving compression and saving space.

[0051] In this embodiment, the drive motor 1 includes a push rod motor. A push rod motor is a device that combines a motor and a mechanical push rod structure. It is mainly used to drive linear motion and is usually composed of a motor, a reduction mechanism and a push rod. It can convert the rotational motion of the motor into the linear reciprocating motion of the push rod.

[0052] The transmission mechanism 2 includes a main pulley 23 driven by a push rod motor via a push rod, and a plurality of secondary pulleys 24 connected to the main pulley 23 via a main wire rope 21. Each secondary pulley 24 is connected to the suspension pipe 31 via a secondary wire rope 22. That is, the main wire rope 21 extends multiple secondary wire ropes 22 via the secondary pulleys 24.

[0053] In this embodiment, the push rod motor is connected to the main pulley 23 via the main steel wire rope 21 extending from the winding mechanism 5. The winding mechanism 5 can wind up or release the main steel wire rope 21. When it is necessary to increase the exhaust area, the driving action of the push rod motor will cause the winding mechanism 5 to wind up the main steel wire rope 21, thereby pulling the suspension pipe 31 upward through the transmission mechanism 2 via the main steel wire rope 21 and the auxiliary steel wire rope 22, thereby reducing the degree of unfolding of the exhaust roller shutter 3 and achieving the effect of increasing the exhaust area of ​​the window structure.

[0054] When it is necessary to reduce the exhaust area, the drive action of the push rod motor will cause the roll-up mechanism 5 to release the main steel wire rope 21, thereby causing the suspension pipe 31 to descend through the transmission mechanism 2 via the main steel wire rope 21 and the auxiliary steel wire rope 22, thereby increasing the unfolding degree of the exhaust roller shutter 3 and achieving the effect of reducing the exhaust area of ​​the window structure.

[0055] Preferably, the device proposed in this embodiment further includes a windproof mechanism 6, which includes a sealing cloth and several windproof ropes 62;

[0056] Among them, the sealing cloth is set on both sides of the exhaust roller shutter 3 perpendicular to the suspension pipe 31, which can prevent wind from entering the breeding house from the edge of the roller shutter, maintain the stability of the breeding house internal environment, reduce the impact of wind on the exhaust roller shutter 3, protect the exhaust roller shutter 3, and extend the service life of the exhaust roller shutter 3.

[0057] The windproof rope 62 is fixed to the outer surface of the exhaust roller shutter 3 by at least one fastener 63 located above the window structure and at least one fastener 63 located below the window structure. The windproof rope 62 can prevent wind from affecting the exhaust roller shutter 3 in the unfolded or partially unfolded state.

[0058] It should be noted that the fastener 63 can adopt a variety of design methods to adapt to different installation environments. In one optional embodiment, the fastener 63 can adopt a hook design to facilitate the installation and fixation of the windproof rope 62 and ensure that the windproof rope 62 is not easy to fall off after installation.

[0059] To enable the exhaust roller shutter 3 to achieve stable unfolding and retraction, the exhaust roller shutter 3 also includes multiple limiting rings 35 installed on the reinforcing ribs 32. The limiting rings 35 are connected to the side of the suspension pipe 31 with a gasket 36. Any steel wire rope 22 is passed through the limiting ring 35 and the gasket 36 on its corresponding reinforcing rib 32. The limiting rings 35 and the gasket 36 together play a limiting role for the steel wire rope 22.

[0060] Preferably, the limiting ring buckle 35 includes a D-shaped ring, which is shaped like the letter "D" and is suitable for connecting two components. The gasket 36 has a large volume, which helps to increase the force-bearing area of ​​the auxiliary steel wire rope 22 at the limiting point, and at the same time can prevent the auxiliary steel wire rope 22 from getting tangled with the D-shaped ring, and avoid the suspension pipe 31 from having inconsistent heights on both sides of the exhaust roller shutter 3.

[0061] In this embodiment, only one gasket 36 is provided in any reinforcing rib 32. The gasket 36 is connected to the limiting ring 35 on the side of the reinforcing rib 32 closest to the suspension pipe 31, which can achieve the effect of preventing the auxiliary wire rope 22 from getting entangled with the D-ring.

[0062] Preferably, a nylon rope 37 is embedded at the top of the exhaust roller shutter 3, and a groove 64 for installing the nylon rope 37 is provided above the window structure. The groove 64 facilitates the installation of the exhaust roller shutter 3, ensures that the exhaust roller shutter 3 will not fall off, and allows for quick replacement when the user needs to replace the exhaust roller shutter 3.

[0063] Preferably, a protective cover 11 is provided on the outside of the drive motor 1 to cover the drive motor 1. The protective cover 11 can prevent rainwater, dust and other substances from entering the drive motor 1, thereby protecting the drive motor 1 and effectively extending the service life of the drive motor 1.

[0064] In summary, this utility model provides a bottom-opening exhaust curtain device for aquaculture. The device proposed in this utility model can make the unfolding stroke of the curtain consistent at all points, thereby allowing for precise and flexible adjustment of the exhaust area. This ensures that the aquaculture shed can achieve the best ventilation effect, effectively prevents unfiltered air from outside the aquaculture shed from flowing back and polluting the air inside, optimizes the safety and epidemic prevention effect, and has the advantages of low cost, simple structure and durability.

[0065] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bottom-opening exhaust curtain device for aquaculture, characterized in that, It includes a drive motor, a transmission mechanism, and an exhaust shutter. The drive motor drives and connects to the transmission mechanism, which includes a main steel wire rope and multiple auxiliary steel wire ropes extending from the main steel wire rope. The top of the exhaust roller shutter is fixed above the window structure, and the bottom of the exhaust roller shutter is provided with a suspension pipe connected to each of the auxiliary steel wire ropes; The drive motor is used to drive the suspension pipe to rise or fall through the transmission mechanism, thereby adjusting the exhaust area of ​​the window structure by changing the degree of unfolding of the exhaust roller shutter.

2. The bottom-opening exhaust curtain device for aquaculture according to claim 1, characterized in that, The exhaust roller shutter also includes multiple reinforcing ribs, each of which is perpendicular to the suspension pipe and disposed on the surface of the exhaust roller shutter, and at least one of the reinforcing ribs is disposed on both sides of the exhaust roller shutter perpendicular to the suspension pipe.

3. The bottom-opening exhaust curtain device for aquaculture according to claim 2, characterized in that, The exhaust roller shutter also includes several counterweight tubes, and any one of the counterweight tubes is arranged parallel to the suspension tube on the surface of the exhaust roller shutter; The spacing between any two adjacent reinforcing ribs is the same, and the spacing between any two adjacent counterweight tubes is the same.

4. The bottom-opening exhaust curtain device for aquaculture according to claim 3, characterized in that, The exhaust roller shutter is provided with a reinforcing rib corresponding to the position of each of the auxiliary steel wire ropes. The exhaust roller shutter also includes a through-hole bolt provided at the junction of any of the reinforcing ribs and any of the counterweight tubes. Each of the auxiliary steel wire ropes passes through the through-hole bolt on the corresponding reinforcing rib.

5. The bottom-opening exhaust curtain device for aquaculture according to claim 4, characterized in that, The exhaust roller shutter also includes multiple limiting rings installed on the reinforcing ribs. A gasket is connected to the side of the limiting ring near the suspension pipe. Any of the secondary steel wire ropes passes through the limiting ring and the gasket on the corresponding reinforcing rib.

6. The bottom-opening exhaust curtain device for aquaculture according to claim 4, characterized in that, The drive motor includes a push rod motor, and the transmission mechanism includes a main pulley that is connected to the push rod of the push rod motor via the main steel wire rope, and a plurality of slave pulleys that are connected to the main pulley via the main steel wire rope. The suspension pipe is connected to any of the pulleys via a secondary wire rope.

7. The bottom-opening exhaust curtain device for aquaculture according to any one of claims 1-6, characterized in that, The device also includes a windproof mechanism, which includes a sealing cloth and several windproof ropes; The sealing cloth is disposed on both sides of the exhaust roller shutter perpendicular to the suspension pipe, and the windproof rope is fixed to the outer surface of the exhaust roller shutter by at least one fixing member disposed above the window structure and at least one fixing member disposed below the window structure.

8. The bottom-opening exhaust curtain device for aquaculture according to claim 1, characterized in that, The device further includes an adjustment module that is signal-connected to the drive motor. The adjustment module is used to acquire external environmental information and / or adjustment command information and generate adjustment signals.

9. The bottom-opening exhaust curtain device for aquaculture according to claim 1, characterized in that, The top of the ventilation roller shutter is fitted with a nylon rope, and a groove for installing the nylon rope is provided above the window structure.

10. The bottom-opening exhaust curtain device for aquaculture according to claim 1 or 6, characterized in that, The drive motor is provided with a protective cover on its outer side to cover the drive motor.

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