Livestock farm ventilation device

Abstract

The utility model discloses a livestock and poultry house ventilation device for livestock and poultry farming belongs to livestock and poultry breeding equipment technical field, aims at solving the problem of low angle adjusting precision of louver and easy to damage due to excessive adjustment in prior art. Including ventilation duct, fixed frame and rotate and connect in fixed frame's louver, still include adjusting assembly, the adjusting assembly includes fixed in fixed frame's lead screw motor, and the sliding disc is screw thread connection on the lead screw, the sliding disc is connected with the swing lever through the sliding plate, and the swing lever is hinged to the louver through the handle. The lead screw motor drives the sliding disc linear motion, and further through the linkage of swing lever and handle, converts linear motion into the rotary motion of driving louver synchronous rotation. The utility model discloses a lead screw drive realizes the smooth, accurate control to louver opening angle, improves the adjusting precision, simultaneously, through the additional limit mechanism, can effectively prevent the mechanical damage caused by excessive adjustment, strengthens the reliability and the life of device.

Description

Technical Field

[0001] This utility model relates to the field of livestock breeding equipment technology, and in particular to a ventilation device for livestock sheds used in livestock breeding. Background Technology

[0002] In modern livestock farming, maintaining good air circulation and cleanliness in livestock sheds is crucial for ensuring livestock health and improving farming efficiency. Therefore, mechanical ventilation systems are widely used. These systems force air exchange through fans and typically feature adjustable louvers at the air outlets to control the direction and magnitude of airflow, thus adapting to ventilation needs under different seasons and climate conditions.

[0003] Existing ventilation systems often employ simple manual linkages or basic motor-driven mechanisms to adjust the louvers. However, these traditional adjustment methods have gradually revealed inherent shortcomings in practical applications. On the one hand, their relatively simple transmission structure often results in an uneven adjustment process, making it difficult to achieve precise, stepless control of the louver angle. This leads to a coarse adjustment of ventilation volume, failing to accurately match the actual needs of the aquaculture environment.

[0004] More seriously, these adjustment mechanisms generally lack effective travel limit protection designs. When operators make manual adjustments or the motor continuously drives the system, exceeding the normal opening and closing range of the louvers can easily lead to mechanical failures such as bent connecting rods, broken gears, or damage to the louvers themselves. This equipment damage caused by over-adjustment not only affects the normal operation of the ventilation system but also increases subsequent maintenance costs and the difficulty of aquaculture management.

[0005] Therefore, this utility model proposes a ventilation device for livestock sheds in animal husbandry to overcome the shortcomings of the existing technology. Summary of the Invention

[0006] To overcome the above shortcomings, this utility model provides a ventilation device for livestock sheds in animal husbandry, aiming to improve the problems of inconvenient disassembly and maintenance of the filter components of the existing ventilation devices, low accuracy of air outlet angle adjustment, and easy damage due to lack of limit protection.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a ventilation device for livestock sheds in animal husbandry, comprising: a ventilation duct, a fan installed inside the ventilation duct, a fixed frame fixedly connected to the air outlet of the ventilation duct, and louvers rotatably connected to the fixed frame; and an adjustment component.

[0008] The adjustment assembly includes a lead screw motor fixedly mounted on the fixed frame, and a sliding disk that slides along the lead screw axis is threaded onto the lead screw of the lead screw motor; one end of the sliding disk is fixedly connected to a sliding plate, and the other end of the sliding plate is fixedly connected to a swing rod.

[0009] Furthermore, the swing rod is hinged to the end of the louver via a rotating handle. The rotation of the lead screw motor drives the sliding disk, the sliding plate, and the swing rod to generate linear motion, which is then converted into rotational motion that drives the louver to rotate via the rotating handle.

[0010] Preferably, the adjustment assembly further includes a second limiting frame and a limiting plate; the second limiting frame is fixedly connected to the bottom of the fixed frame, the limiting plate is fixedly connected to the end of the swing rod away from the sliding plate, and the limiting plate is slidably received inside the second limiting frame.

[0011] Preferably, the lead screw motor is vertically mounted on the fixed frame, and the lead screw axis of the lead screw motor is parallel to the length direction of the swing rod.

[0012] Preferably, the livestock shed ventilation device for livestock farming further includes a filter assembly installed in the ventilation duct, and a snap-fit ​​assembly for securing the filter assembly.

[0013] Preferably, the buckle assembly includes a first limiting frame fixedly connected to the inner wall of the ventilation duct, and an outwardly extending deformation locking post is fixedly installed on the first limiting frame; the edge of the filter assembly is provided with a first locking groove post that engages with the deformation locking post.

[0014] Preferably, the end of the deformation locking post is integrally formed with a limiting disk, and the body of the deformation locking post is provided with a deformation groove for providing elastic deformation space.

[0015] Preferably, the filter assembly includes a filter screen and an adsorption plate; the first slot post is formed at the edge of the filter screen, and the edge of the adsorption plate is also provided with a second slot post sleeved on the deformable slot post.

[0016] Preferably, the adsorption plate and the filter screen are stacked together, and the second slot post is coaxially arranged with and connected to the first slot post.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problems of coarse and inaccurate control of louver angle adjustment in existing ventilation devices, which are prone to mechanical damage due to over-adjustment, by setting an adjustment assembly consisting of a lead screw motor, a sliding disc, a swing rod, and a handle, and adding a limiting mechanism consisting of a limiting plate and a second limiting frame. It achieves stable and precise control of the louver opening and closing angle, while providing reliable stroke limit protection, thereby effectively avoiding equipment damage and improving the overall reliability and service life of the device.

[0018] 2. This utility model, by setting a buckle assembly consisting of a deformable locking post and a locking post, wherein the deformable locking post is also provided with a deformation groove, solves the problem that the filter assembly is usually fixed by bolts and the disassembly and maintenance process is cumbersome and time-consuming in the prior art. It achieves the technical effect of quickly installing and disassembling the filter assembly without the aid of any tools, which greatly simplifies the maintenance process and saves labor costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a livestock shed ventilation device for livestock farming proposed in this utility model.

[0020] Figure 2 This is an exploded structural diagram of the filter screen of a livestock shed ventilation device for livestock farming proposed in this utility model.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 This is a schematic diagram of the swing rod structure of a ventilation device for livestock sheds used in animal husbandry, as proposed in this utility model.

[0023] Legend: 1. Ventilation duct; 2. Fixing frame; 3. Louver; 4. Fan; 5. Filter assembly; 501. Filter screen; 502. Adsorption plate; 6. Clip assembly; 601. First limiting frame; 602. Deformation locking post; 603. Deformation groove; 604. Limiting plate; 605. First locking post; 606. Second locking post; 7. Adjustment assembly; 701. Screw motor; 702. Sliding plate; 703. Sliding plate; 704. Swing rod; 705. Rotary handle; 706. Second limiting frame; 707. Limiting plate. Detailed Implementation

[0024] 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 protection scope of the present utility model.

[0025] Reference Figures 1-4 One embodiment of this utility model is a ventilation device for livestock sheds in animal husbandry, including a ventilation duct 1, a fan 4 installed inside the ventilation duct 1, a fixed frame 2 fixedly connected to the air outlet of the ventilation duct 1 by welding or bolting, and a number of louvers 3 rotatably connected to the fixed frame 2. The ventilation device generates an air pressure difference between the inside and outside of the livestock shed by activating the fan 4, and controls the air direction and flow rate by adjusting the opening and closing angle of the louvers 3.

[0026] The adjusting assembly 7 includes a lead screw motor 701 fixedly mounted on the fixed frame 2. A sliding disk 702 is threadedly connected to the lead screw of the lead screw motor 701. The sliding disk 702 can slide up and down along the axial direction of the lead screw of the lead screw motor 701. One end of a sliding plate 703 is fixedly connected to the sliding disk 702. The other end of the sliding plate 703 is fixedly connected to a swing rod 704. Several rotating handles 705 are hinged to the swing rod 704. The other end of each rotating handle 705 is fixedly connected to the end of a corresponding louver 3. 701 is vertically mounted on the fixed frame 2. The lead screw axis of the lead screw motor 701 is parallel to the length direction of the swing rod 704. When the lead screw motor 701 rotates, it drives the sliding plate 702 to move linearly through the lead screw transmission. The sliding plate 702 then drives the swing rod 704 to move up and down synchronously through the sliding plate 703. The linear motion of the swing rod 704 is converted into a rotational torque that drives all the louvers 3 to rotate synchronously through the handle 705. This linkage transmission structure driven by the lead screw motor 701 ensures the smoothness and accuracy of the louver 3 angle adjustment.

[0027] As a preferred embodiment, in order to effectively limit the rotational stroke of the louver 3 and prevent damage to the mechanical structure due to over-adjustment, please refer to... Figure 1 and Figure 3 The adjustment assembly 7 also includes a second limiting frame 706 and a limiting plate 707. The second limiting frame 706 is fixedly connected to the bottom of the fixed frame 2 by welding or bolting. The limiting plate 707 is fixedly connected to the end of the swing rod 704 away from the sliding plate 703. The limiting plate 707 can slide up and down inside the second limiting frame 706. The upper and lower inner walls of the second limiting frame 706 respectively constitute mechanical limits on the movement range of the limiting plate 707.

[0028] As another preferred embodiment, in order to purify the air inside the livestock shed, please refer to... Figure 1 and Figure 2 The livestock shed ventilation device for livestock farming also includes a filter assembly 5 installed inside the ventilation duct 1, and a snap-fit ​​assembly 6 for quickly snapping and fixing the filter assembly 5.

[0029] Further, please refer to Figure 4 The buckle assembly 6 is described in detail. The buckle assembly 6 includes a first limiting frame 601 fixedly connected to the inner wall of the ventilation duct 1. Several outwardly extending deformation locking posts 602 are fixedly installed on the first limiting frame 601. The edge of the filter assembly 5 is provided with a first locking groove post 605 that engages with the deformation locking posts 602. This structure makes the installation and disassembly of the filter assembly 5 very convenient.

[0030] To enhance the reliability and ease of operation of the card connection, please refer to... Figure 4 The free end of the deformation locking post 602 is integrally formed with a limiting disk 604, and the body of the deformation locking post 602 is provided with a deformation groove 603 for providing elastic deformation space.

[0031] To achieve graded filtration of different pollutants in the air, please refer to... Figure 2 and Figure 4 The filter assembly 5 specifically includes a filter screen 501 and an adsorption plate 502. A first slot post 605 is opened at the edge of the filter screen 501, and a second slot post 606 for fitting onto the deformable slot post 602 is also opened at the edge of the adsorption plate 502.

[0032] As a further optimization of the structure of the filter assembly 5, the adsorption plate 502 and the filter screen 501 are stacked, and the second slot post 606 and the first slot post 605 are coaxially arranged and interconnected, thereby ensuring that the filter screen 501 and the adsorption plate 502 can be installed or removed as a whole at the same time.

[0033] Working principle: When adjusting the ventilation volume, the lead screw motor 701 is started. The lead screw of the lead screw motor 701 rotates, driving the sliding disk 702, which it cooperates with, to make precise linear displacement along the axis of the lead screw through thread transmission. Since the sliding disk 702, the sliding plate 703 and the swing rod 704 are fixedly connected, the linear movement of the sliding disk 702 will synchronously drive the swing rod 704 to produce a lifting and lowering movement in the same direction and displacement.

[0034] During the lifting and lowering process, the swing arm 704 converts its linear motion into rotational motion that drives all louvers 3 to rotate synchronously around its own axis through the hinged handle 705, thereby changing the opening and closing angle of the louvers 3 and achieving precise and stepless adjustment of the ventilation volume. When the swing arm 704 moves to its limit position, the limiting plate 707 fixed to the bottom of the swing arm 704 will contact the inner wall of the second limiting frame 706 on the fixed frame 2, thereby forming a mechanical limit, effectively preventing over-adjustment due to control errors or motor failures, and protecting the mechanical structure of the entire adjustment assembly 7.

[0035] When maintaining or replacing the filter assembly 5, the operator presses the deformation locking post 602 inward. Due to the presence of the deformation groove 603, the deformation locking post 602 elastically contracts, causing the effective diameter of the limiting plate 604 at its end to be smaller than the aperture of the first locking post 605 and the second locking post 606. At this time, the filter assembly 5, including the filter screen 501 and the adsorption plate 502, can be directly pulled out axially. During installation, simply align the filter assembly 5 with the deformation locking post 602 and push it in. The limiting plate 604 will be passively compressed when it contacts the edge of the locking post, and after passing through, it will spring back to its original position under its own elastic force, thus firmly locking the filter assembly 5 into the ventilation duct 1. The entire process requires no tools and is extremely simple and quick to operate.

Claims

1. A ventilation device for livestock sheds used in animal husbandry, comprising a ventilation duct (1), wherein a fan (4) is installed inside the ventilation duct (1), a fixed frame (2) is fixedly connected to the air outlet of the ventilation duct (1), and louvers (3) are rotatably connected to the fixed frame (2); characterized in that, It also includes an adjustment component (7), which includes a lead screw motor (701) fixedly installed on the fixed frame (2), and a sliding disk (702) that slides along the lead screw axis is threaded onto the lead screw of the lead screw motor (701); one end of a sliding plate (703) is fixedly connected to the sliding disk (702), and the other end of the sliding plate (703) is fixedly connected to a swing rod (704); the swing rod (704) is hinged to the end of the louver (3) through a handle (705).

2. The livestock shed ventilation device for livestock farming according to claim 1, characterized in that, The adjustment component (7) further includes a second limiting frame (706) and a limiting plate (707); the second limiting frame (706) is fixedly connected to the bottom of the fixed frame (2), the limiting plate (707) is fixedly connected to the end of the swing rod (704) away from the sliding plate (703), and the limiting plate (707) is slidably housed inside the second limiting frame (706).

3. The livestock shed ventilation device for livestock farming according to claim 1 or 2, characterized in that, The lead screw motor (701) is vertically mounted on the fixed frame (2), and the lead screw axis of the lead screw motor (701) is parallel to the length direction of the swing rod (704).

4. The livestock shed ventilation device for livestock farming according to claim 1, characterized in that... It also includes a filter assembly (5) installed in the ventilation duct (1) and a snap-fit ​​assembly (6) for snapping the filter assembly (5) in place.

5. The livestock shed ventilation device for livestock farming according to claim 4, characterized in that, The buckle assembly (6) includes a first limiting frame (601) fixedly connected to the inner wall of the ventilation duct (1), and a deformable locking post (602) extending outward is fixedly installed on the first limiting frame (601); the edge of the filter assembly (5) is provided with a first locking groove post (605) that engages with the deformable locking post (602).

6. The livestock shed ventilation device for livestock farming according to claim 5, characterized in that, The end of the deformation locking post (602) is integrally formed with a limiting disk (604), and the body of the deformation locking post (602) is provided with a deformation groove (603) for providing elastic deformation space.

7. The livestock shed ventilation device for livestock farming according to claim 5, characterized in that, The filter assembly (5) includes a filter screen (501) and an adsorption plate (502); the first slot post (605) is opened at the edge of the filter screen (501), and the edge of the adsorption plate (502) is also provided with a second slot post (606) sleeved on the deformable slot post (602).

8. The livestock shed ventilation device for livestock farming according to claim 7, characterized in that, The adsorption plate (502) and the filter screen (501) are stacked together, and the second slot post (606) is coaxially arranged and connected with the first slot post (605).

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