Livestock and poultry house ventilating window regulation and control system and method
The livestock and poultry house ventilation windows are adjusted through the rope connection adjustment mechanism and the turbine worm mechanism, and precise segmentation control is achieved using two motors, which solves the problem of uneven control of the livestock and poultry house ventilation windows, improves environmental quality and reduces costs and energy consumption.
Patent Information
- Application Number
- CN202510932733.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2025-08-15
AI Technical Summary
The existing livestock and poultry house ventilation window control system cannot flexibly and accurately control the opening of the ventilation window, resulting in uneven environment of the livestock and poultry house, and the system is complex, expensive and difficult to maintain.
The rope connection adjustment mechanism is adopted, combined with the turbo worm or screw telescopic mechanism and the barrel cam structure, and the opening and closing state of the ventilation window is adjusted by controlling the transverse and longitudinal offsets, and precise segmented control is achieved using two motors.
It realizes precise regulation of the opening amount of ventilation windows, improves the uniformity and comfort of livestock and poultry houses, simplifies the system, reduces costs, reduces energy consumption and is convenient for maintenance.
Smart Images
Figure CN120486873A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of ventilation for livestock and poultry breeding, and in particular to a ventilation window control system and method for livestock and poultry houses. Background Art
[0002] Currently, livestock and poultry houses primarily utilize longitudinal ventilation systems for environmental control to ensure the healthy growth of livestock and poultry. During winter and transitional seasons, fresh air enters the house through several ventilation windows on the side walls, removing excess heat, humidity, and gaseous pollutants. Finally, it is exhausted directly outside through exhaust fans on the gable walls. Therefore, ventilation windows, as the primary air inlet in livestock and poultry houses, play a crucial role. Precisely controlling the opening of ventilation windows helps create a uniform and comfortable livestock and poultry house environment.
[0003] However, the current control methods for ventilation windows in livestock and poultry houses have the following shortcomings: in most cases, the control of ventilation windows mainly relies on manual operation, and the opening of ventilation windows cannot be flexibly controlled and the control accuracy is poor; a few ventilation windows that use mechanical linkage devices or single motor control, although they achieve unified control of side wall ventilation windows, all ventilation windows have the same opening and cannot achieve differentiated control, resulting in uneven air intake of each ventilation window and affecting the environmental quality of livestock and poultry houses; although some ventilation windows adopt the method of zoning control, which to a certain extent achieves differentiated opening of ventilation windows, this differentiated control relies entirely on the experience of users and lacks scientific basis. At the same time, it is necessary to equip the ventilation windows of each area with independent motors or sensors, resulting in complex system, low automation integration, high cost and difficult maintenance; in summary, once the existing livestock and poultry house ventilation window system is installed, it is difficult to accurately control its ventilation difference (i.e., the difference in opening amount of ventilation windows in adjacent groups) during subsequent use, which restricts the development of livestock and poultry house environmental control. Summary of the Invention
[0004] In response to the problems mentioned in the background technology, the present invention aims to provide a ventilation window control system and method for livestock and poultry houses.
[0005] The present invention adopts the following technical solutions.
[0006] A ventilation window control system for a livestock and poultry house includes a ventilation window, which is connected to an adjustment mechanism via a rope. The adjustment mechanism includes a transverse adjustment part and a longitudinal adjustment part. The transverse adjustment part is used to adjust the transverse offset of the rope, and the longitudinal adjustment part is used to adjust the longitudinal displacement of the rope. The opening and closing state of the ventilation window is changed by controlling the transverse offset and / or longitudinal displacement.
[0007] Preferably, the transverse adjustment portion includes a transverse drive mechanism, the transverse drive mechanism is connected to the transverse rod, and the transverse drive mechanism adopts a worm gear mechanism or a screw telescopic mechanism.
[0008] In order to more accurately and flexibly control the opening amount of the ventilation window to improve the uniformity and comfort of the livestock and poultry house environment, the longitudinal adjustment part includes a drive motor, the output end of the drive motor is connected to the sprocket transmission mechanism, and the sprocket transmission mechanism is connected to the barrel cam structure; the barrel cam structure includes a barrel cam, and a telescopic rod is matched in the spiral groove of the barrel cam. The main part of the telescopic rod is parallel to the barrel cam, and the front end of the telescopic rod is connected to the rope through a rigid connecting rod; when the drive motor is running, it drives the sprocket transmission mechanism to work and drives the barrel cam to rotate, and the telescopic rod is extended and retracted in a direction parallel to the barrel cam.
[0009] Preferably, the sprocket transmission mechanism includes a driving wheel connected to the output end of the driving motor, and several driven wheels are arranged on the side away from the driving wheel. The driving wheel and the driven wheels are connected by a chain. Each driven wheel is also connected to the first end of the corresponding barrel cam. The driving wheel, the driven wheel and the chain are all located in the inner cavity of the cross bar, and the driving motor is installed on the cross bar.
[0010] To more precisely and flexibly adjust the opening of the ventilation windows to improve environmental uniformity and comfort in livestock and poultry houses, the front ends of the telescopic rods on several adjacent barrel cams are connected to a single rigid connecting rod. This rigid connecting rod is connected to several independent ropes, each connected to a ventilation window. The ventilation windows connected by these ropes constitute a group of ventilation windows. In this paragraph, the term "several" refers to the same number in both places.
[0011] To more stably, flexibly, and precisely control the opening of the ventilation window to improve the uniformity and comfort of the livestock and poultry house environment, a bearing is fixed to the second end of the barrel cam. The bearing fits on the lower end of an L-shaped bracket, and a limit sleeve is installed on the upper end of the L-shaped bracket. The limit sleeve is mounted on the telescopic rod. When the drive motor is running, the outer ring of the bearing rotates, while the inner ring of the bearing, L-shaped bracket, and limit sleeve are fixed, and the telescopic rod extends and retracts along the inner wall of the limit sleeve. This solution also effectively prevents the longitudinal adjustment unit from getting stuck or failing when the ventilation window is opened and closed significantly.
[0012] Preferably, the barrel cam includes a first rod and a second rod. A lower end of the rod is connected to the driving wheel. The upper portion of the first rod is provided with a thread, and the lower portion of the second rod is provided with a screw hole. The first rod is connected to the second rod via the thread. The lower portion of the second rod is provided with a pin hole. The limit pin fits in the pin hole and can radially press against the first rod. This solution facilitates adjustment of the opening amount of each ventilation window.
[0013] A control method using the aforementioned livestock and poultry house ventilation window control system, wherein the drive motor and the motor of the transverse drive mechanism are both connected to a controller, and the processor of the controller implements the following steps when executing its program: S1, controls the driving motor and the motor of the lateral driving mechanism to start; S2: At a set time point, control the motor of the transverse drive mechanism to operate so that the crossbar moves laterally to target position 1; control the drive motor to rotate at a set speed and direction so that the telescopic rod is at target position 2; S4, controlling the driving motor and the motor of the transverse driving mechanism to be turned off.
[0014] A ventilation differential control method using the aforementioned livestock and poultry house ventilation window control system is provided. The method can accurately control the opening amount of the ventilation windows and change the difference in the opening amount of the ventilation windows of adjacent groups relative to the difference in the opening amount of the ventilation windows in the initial state, thereby meeting the requirement of the uniform air suction principle of the negative pressure air duct to balance the air intake of each ventilation window. The drive motor and the motor of the transverse drive mechanism are both connected to a controller. When the processor of the controller executes its program, the following steps are implemented: S11, control the drive motor to start; S12, at a set time point, controlling the drive motor to rotate at a set speed and direction so that the telescopic rod is at a target position; S13, controlling the driving motor to turn off.
[0015] Beneficial effects: By adopting the solution of the present invention, only two motors are needed to flexibly control the opening and closing status and opening amount of all ventilation windows, eliminating the need for a large number of motors and sensors required in the existing solution. Not only can precise segmented control be achieved, but the opening amount of the ventilation windows can also be stably and accurately controlled to improve the uniformity and comfort of the livestock and poultry house environment. In the present invention, the entire system structure is greatly simplified, the cost is extremely low, maintenance is convenient, and the energy consumption during use is low (energy consumption can be reduced by at least 50% compared to existing conventional solutions). More importantly, the solution of the present invention can accurately, quickly and stably control the opening amount of the ventilation windows at any time period during use, and make the difference in the opening amount of the ventilation windows of adjacent groups adaptively change relative to the difference in the opening amount of the ventilation windows of adjacent groups in the initial state, solving the current technical problem that the ventilation difference in livestock and poultry houses cannot be accurately and individually adjusted. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a three-dimensional schematic diagram of the ventilation window control system for livestock and poultry houses in Example 1; Figure 2 This is a top-down schematic diagram of the ventilation window control system for livestock and poultry houses in Example 1; Figure 3 Schematic cross-section of the ventilation window control system for livestock and poultry houses in Example 1 (the ventilation windows are omitted); Figure 4 Schematic cross-section of the ventilation window control system for livestock and poultry houses in Example 2 (the ventilation windows are omitted); Figure 5This is a partial schematic diagram of the telescopic rod location of the ventilation window control system for livestock and poultry houses in Example 1 (adjacent groups of ventilation windows). DETAILED DESCRIPTION
[0017] The following, in conjunction with the accompanying drawings, provides a clear and complete description of the technical solutions of the present invention. Obviously, the embodiments described herein represent only a portion of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. In the present invention, the opening angle of the ventilation window windshield is used to represent the opening amount of the ventilation window. An opening angle of 30° corresponds to a closed state, and an opening angle of 90° corresponds to a fully open state. Example 1
[0018] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, a ventilation window control system for a livestock and poultry house includes several spaced ventilation windows, each connected to an adjustment mechanism via a rope 1 (wire rope). The adjustment mechanism includes a transverse adjustment portion and a longitudinal adjustment portion. The transverse adjustment portion is used to adjust the transverse offset of the rope 1, and the longitudinal adjustment portion is used to adjust the longitudinal displacement of the rope 1. The opening and closing state of the ventilation window is changed by controlling the transverse offset and / or longitudinal displacement. The transverse adjustment portion includes a transverse drive mechanism 4, which is connected to a crossbar 3. The crossbar 3 is a hollow rectangular tube. The transverse drive mechanism 4 uses a worm gear mechanism or a screw telescoping mechanism mounted on one end of the crossbar 3.
[0019] In this embodiment, the longitudinal adjustment part includes a drive motor 5, the output end of the drive motor 5 is connected to the sprocket transmission mechanism, and the sprocket transmission mechanism is connected to the barrel cam structure; the barrel cam structure includes a barrel cam 6, the barrel cam 6 is perpendicular to the cross bar 3, and a telescopic rod 8 is matched in the spiral groove 7 of the barrel cam 6. The pitch of the spiral groove 7 on the barrel cam 6 of adjacent groups is different (such as Figure 5 As shown in the figure, the pitch of the left spiral groove 7 is schematically shown to be smaller than the pitch of the right spiral groove 7). Figure 1 and Figure 2 Figure 2 shows the barrel cam 6 of the same group. The main part of the telescopic rod 8 is parallel to the barrel cam 6, and the front end of the telescopic rod 8 is connected to the rope 1 through a rigid connecting rod 9. When the drive motor 5 is running, it drives the sprocket transmission mechanism to work and drives the barrel cam 6 to rotate, and the telescopic rod 8 is extended and retracted in a direction parallel to the barrel cam 6.
[0020] In this embodiment, the sprocket drive mechanism includes a driving pulley 15 connected to the output end of the drive motor 5. A plurality of driven pulleys 10 are disposed on a side away from the driving pulley 15. The number of driven pulleys 10 is the same as the number of ventilation windows. The driving pulley 15 and the driven pulleys 10 are connected by a chain 11. Each driven pulley 10 is also connected to the first end of a corresponding barrel cam 6. The driving pulley 15, the driven pulleys 10, and the chain 11 are all located within the cavity of the crossbar 3, on which the drive motor 5 is mounted. The front ends of the telescopic rods 8 on two adjacent barrel cams 6 are connected to a common rigid link 9. Two independent cables 1 are connected to this same rigid link 9, each cable 1 being connected to a ventilation window.
[0021] A control method for the livestock and poultry house ventilation window control system of this embodiment is used. The drive motor 5 and the motor of the transverse drive mechanism 4 are both connected to a controller. When the processor of the controller executes its program, the following steps are implemented: S1, controlling the driving motor 5 and the motor of the transverse driving mechanism 4 to start; S2, at the set time point, control the motor of the transverse drive mechanism 4 to operate, so that the crossbar 3 moves laterally to the target position 1; control the drive motor 5 to rotate at the set speed 1 and direction, so that the telescopic rod 8 is located at the target position 2; S3, controlling the driving motor 5 and the motor of the transverse driving mechanism 4 to be turned off.
[0022] A ventilation differential control method for the livestock and poultry house ventilation window control system of this embodiment is used. The drive motor 5 and the motor of the transverse drive mechanism 4 are both connected to a controller. When the processor of the controller executes its program, the following steps are implemented: S11, control the drive motor 5 to start; S12, at the set time point, controlling the drive motor 5 to rotate at a set speed and direction so that the telescopic rod 8 is located at the target position 3; S13, controlling the driving motor 5 to turn off.
[0023] In one of the application schemes, there are 20 ventilation windows on one side wall of the chicken house, and every two ventilation windows are regarded as the same group (same category) of ventilation windows, that is, there are 10 groups of ventilation windows. The pitch of the spiral groove 7 on the barrel cam 6 corresponding to each group of ventilation windows is represented by L1, L2, L3, L4, L5, L6, L7, L8, L9, and L10 respectively, L1≠L2≠L3≠L4≠L5≠L6≠L7≠L8, L9≠L10>0; in the initial state after the ventilation windows are installed and debugged, if the opening amount of each group (1st to 10th group) of ventilation windows is 35°, 37°, 40°, 44°, 49°, 50°, 55°, 61°, 67°, 7 4°, then the difference in the opening amount of the ventilation windows of groups 1 and 2 is 2°, the difference in the opening amount of the ventilation windows of groups 2 and 3 is 3°, the difference in the opening amount of the ventilation windows of groups 3 and 4 is 4°, the difference in the opening amount of the ventilation windows of groups 4 and 5 is 5°, the difference in the opening amount of the ventilation windows of groups 5 and 6 is 1°, the difference in the opening amount of the ventilation windows of groups 6 and 7 is 5°, the difference in the opening amount of the ventilation windows of groups 7 and 8 is 6°, the difference in the opening amount of the ventilation windows of groups 8 and 9 is 6°, and the difference in the opening amount of the ventilation windows of groups 9 and 10 is 7°. At the time of changing seasons, considering the uniformity of airflow / ventilation in the house, it is necessary to adjust / change the difference in the opening amount of the ventilation windows of adjacent groups. Then, it is only necessary to control the drive motor 5 to rotate according to the set speed 2 and direction to make the telescopic rod 8 located at the target position 3. Since the pitch of the spiral groove 7 is pre-set, the difference in the opening amount of the ventilation windows of each group after adjustment can be changed to: the difference in the opening amount of the ventilation windows of the 1st and 2nd groups is 2-α1°, the difference in the opening amount of the ventilation windows of the 2nd and 3rd groups is 3-α2°, and the difference in the opening amount of the ventilation windows of the 3rd and 4th groups is 2-α1°. The difference in window opening amount is 4-α3°, the difference in ventilation window opening amount of groups 4 and 5 is 5-α4°, the difference in ventilation window opening amount of groups 5 and 6 is 1-α5°, the difference in ventilation window opening amount of groups 6 and 7 is 5-α6°, the difference in ventilation window opening amount of groups 7 and 8 is 6-α7°, the difference in ventilation window opening amount of groups 8 and 9 is 6-α8°, and the difference in ventilation window opening amount of groups 9 and 10 is 7-α9°. α1≠α2≠α3≠α4≠α5α≠6α≠7α≠8α≠9α≠10α.
[0024] By adopting the solution in this embodiment, only two motors are needed to flexibly control the opening and closing status and opening amount of all ventilation windows, eliminating the large number of motors and sensors required in the existing solution. It can not only achieve precise segmented control (every two ventilation windows are controlled as a segment), but also stably and accurately control the opening amount of the ventilation windows to improve the uniformity and comfort of the livestock and poultry house environment; in this solution, the entire system structure is greatly simplified, the cost is extremely low (compared to the solution of configuring one motor for each small window, the cost can be reduced by at least 60%), maintenance is convenient, and energy consumption during use is low (energy consumption can be reduced by at least 50% compared to the existing conventional solution); more importantly, by adopting the solution in this embodiment, the opening amount of the ventilation windows can be accurately and quickly controlled at any time period during use, and the difference in the opening amount of the ventilation windows of adjacent groups can be adaptively changed relative to the difference in the opening amount of the ventilation windows of adjacent groups in the initial state, solving the current technical problem that the ventilation difference in livestock and poultry houses cannot be accurately and individually adjusted. Example 2
[0025] A ventilation window control system for livestock and poultry houses, referring to Example 1, which differs from Example 1 in that: Figure 4 As shown, a bearing 12 is fixedly mounted on the second end of the barrel cam 6. The bearing 12 engages with the lower end of an L-shaped bracket 13. A limiting sleeve 14 is mounted on the upper end of the L-shaped bracket 13. The limiting sleeve 14 is mounted on the telescopic rod 8. When the drive motor 5 is in operation, the outer ring of the bearing 12 rotates, while the inner ring of the bearing 12, the L-shaped bracket 13, and the limiting sleeve 14 remain stationary. The telescopic rod 8 extends and retracts along the inner wall of the limiting sleeve 14. Compared to Example 1, this embodiment offers further advantages: it not only enables more stable, flexible, and precise control of the ventilation volume of the livestock and poultry house, but also effectively prevents the longitudinal adjustment portion from becoming stuck or failing when the ventilation window opening is adjusted significantly, particularly preventing the L-shaped bracket 13 from bending. Example 3
[0026] A livestock and poultry house ventilation window control system, referring to Example 1, differs from Example 1 in that: a barrel cam 6 includes a rod body 1 and a rod body 2, a lower end of the rod body being connected to a driving wheel 15, the upper portion of rod body 1 being provided with threads, the lower portion of rod body 2 being provided with a screw hole, rod body 1 being connected to rod body 2 via threads, the lower portion of rod body 2 being provided with a pin hole, a limit pin fitting within the pin hole and being able to radially press against rod body 1; when it is necessary to adjust the opening amount of the ventilation window (herein, the degree / amplitude to which the ventilation window can be opened or adjusted), it is only necessary to first remove the limit pin, then twist rod body 1 or rod body 2 to the appropriate position, and then reinstall the limit pin. Compared to Example 1, this embodiment has further advantages including: ease of individual replacement and adjustment of each barrel cam 6, ease of controlling the difference in the opening amount of each group of ventilation windows, and ease of adjustment of the opening amount of each ventilation window.
[0027] In other embodiments, a single ventilation window may be used as a group of ventilation windows; the front ends of the telescopic rods on three adjacent barrel cams may be connected to the same rigid connecting rod, and three independent ropes may be connected to the same rigid connecting rod, each rope is connected to a ventilation window, and the three ventilation windows connected by these three ropes are the same group of ventilation windows; or at least three adjacent ventilation windows may be the same group of ventilation windows.
Claims
1. A ventilation window control system for livestock and poultry houses, comprising ventilation windows, characterized in that: The ventilation window is connected to an adjustment mechanism via a rope (1), and the adjustment mechanism comprises a transverse adjustment portion and a longitudinal adjustment portion. The transverse adjustment portion is used to adjust the transverse offset of the rope (1), and the longitudinal adjustment portion is used to adjust the longitudinal displacement of the rope (1). The opening and closing state of the ventilation window is changed by controlling the transverse offset and / or the longitudinal displacement.
2. The livestock and poultry house ventilation window control system according to claim 1, characterized in that: The transverse adjustment portion comprises a transverse drive mechanism (4), the transverse drive mechanism (4) is connected to the transverse rod (3), and the transverse drive mechanism (4) adopts a turbine worm mechanism or a lead screw telescopic mechanism.
3. The livestock and poultry house ventilation window control system according to claim 2, characterized in that: The longitudinal adjustment part includes a driving motor (5), the output end of the driving motor (5) is connected to a sprocket transmission mechanism, and the sprocket transmission mechanism is connected to a barrel cam structure; the barrel cam structure includes a barrel cam (6), and a telescopic rod (8) is matched in the spiral groove (7) of the barrel cam (6), and the pitch of the spiral groove (7) on the barrel cams (6) of adjacent groups is different. The main part of the telescopic rod (8) is parallel to the barrel cam (6), and the front end of the telescopic rod (8) is connected to the rope (1) through a rigid connecting rod (9); when the driving motor (5) is running, it drives the sprocket transmission mechanism to work and drives the barrel cam (6) to rotate, and the telescopic rod (8) is telescopic in a direction parallel to the barrel cam (6).
4. The livestock and poultry house ventilation window control system according to claim 3, characterized in that: The sprocket transmission mechanism includes a driving wheel (15) connected to the output end of the driving motor (5), and a plurality of driven wheels (10) are arranged on a side away from the driving wheel (15). The driving wheel (15) and the driven wheels (10) are connected through a chain (11). Each driven wheel (10) is also connected to the first end of the corresponding barrel cam (6). The driving wheel (15), the driven wheel (10) and the chain (11) are all located in the inner cavity of the crossbar (3), and the driving motor (5) is mounted on the crossbar (3).
5. The livestock and poultry house ventilation window control system according to claim 4, characterized in that: The front ends of the telescopic rods (8) on a plurality of adjacent barrel-shaped cams (6) are connected to a same rigid connecting rod (9), and a plurality of mutually independent ropes (1) are connected to the same rigid connecting rod (9), and each rope (1) is connected to a ventilation window.
6. The livestock and poultry house ventilation window control system according to any one of claims 3 to 5, characterized in that: A bearing (12) is fixedly provided at the second end of the barrel cam (6), the bearing (12) is fitted on the lower end of the L-shaped bracket (13), a limiting sleeve (14) is provided on the upper end of the L-shaped bracket (13), and the limiting sleeve (14) is sleeved on the telescopic rod (8); when the drive motor (5) is running, the outer ring of the bearing (12) rotates, the whole formed by the inner ring of the bearing (12), the L-shaped bracket (13) and the limiting sleeve (14) is fixed, and the telescopic rod (8) is extended and retracted along the inner wall of the limiting sleeve (14).
7. The livestock and poultry house ventilation window control system according to claim 6, characterized in that: The barrel cam (6) comprises a rod body 1 and a rod body 2, a lower end of the rod body being connected to a driving wheel (15), an upper section of the rod body 1 being provided with a thread, a lower section of the rod body 2 being provided with a screw hole, the rod body 1 being connected to the rod body 2 via the thread, a pin hole being provided at the lower section of the rod body 2, a limit pin being fitted in the pin hole and being able to radially press against the rod body 1.
8. A control method for the livestock and poultry house ventilation window control system according to any one of claims 3 to 7, characterized in that: The drive motor (5) and the motor of the transverse drive mechanism (4) are both connected to a controller, and the processor of the controller implements the following steps when executing its program: S1, controlling the motors of the drive motor (5) and the lateral drive mechanism (4) to start; S2, at a set time point, controls the motor of the transverse drive mechanism (4) to operate, so that the crossbar (3) moves transversely to the target position 1; controls the drive motor (5) to rotate at a set speed and direction, so that the telescopic rod (8) is located at the target position 2; S3, controlling the motor of the drive motor (5) and the lateral drive mechanism (4) to be turned off.
9. A ventilation difference control method using the livestock and poultry house ventilation window control system according to any one of claims 3 to 7, characterized in that: The drive motor (5) and the motor of the transverse drive mechanism (4) are both connected to a controller, and the processor of the controller implements the following steps when executing its program: S11, controlling the driving motor (5) to turn on; S12, at a set time point, controlling the drive motor (5) to rotate at a set speed and direction so that the telescopic rod (8) is located at a target position (3); S13, controlling the driving motor (5) to turn off.