Indoor circulating ventilation device for laying hen breeding

Abstract

The utility model belongs to the technical field of laying hen breeding equipment, and particularly relates to an indoor circulation type ventilation device for laying hen breeding, which comprises a ventilation hole, an exhaust fan, an L-shaped air guide pipe, an air gathering cover and a first three-stage filter screen, the first three-stage filter screen is composed of three inclined metal filter screens which are uniformly distributed up and down, and a circular plate is arranged in the center of the three metal filter screens. A transmission rod which is longitudinally arranged penetrates through the three circular plates, the top of the transmission rod is connected with the top end of the vertical section through a vibration spring, the bottom end of the vertical section is connected with a dust recovery pipe, and the mesh number of the three metal filter screens is sequentially increased from bottom to top. The dust filtering and recycling mode is improved on the basis of an existing ventilation device, so that it is guaranteed that the ventilation device can effectively operate for a long time under the basically maintenance-free condition.

Description

Technical Field

[0001] This invention belongs to the technical field of egg-laying hen farming equipment, specifically relating to an indoor circulating ventilation device for egg-laying hen farming. Background Technology

[0002] Laying hens are chickens raised specifically to produce eggs. Unlike broiler chickens, the main focus of raising laying hens is to improve egg quality and maintain or increase egg production, rather than improving chicken meat quality. Eggs are the primary source of income for laying hen farmers.

[0003] In egg-laying hen farming, ventilation is particularly important in high-density chicken houses. Maintaining fresh and well-ventilated air inside the house is essential. Poor ventilation allows large amounts of harmful gases such as ammonia, carbon dioxide, and hydrogen sulfide to be released, affecting the normal growth and egg production of chickens and causing various diseases. Therefore, ventilation devices need to be installed on the walls of the chicken house.

[0004] However, when existing ventilation equipment is in use, dust in the chicken coop enters the ventilation device along with the air. The air is then exhausted to the outside, while the dust remains on the filter plate inside the ventilation device. After long-term use, this dust will clog the mesh of the filter plate and affect the ventilation effect. Utility Model Content

[0005] This invention discloses an indoor circulating ventilation device for egg-laying hen farming, which improves the existing ventilation device's dust filtration and recovery method to ensure that the ventilation device can operate effectively for a long time with minimal maintenance.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] An indoor circulating ventilation device for egg-laying hen farming includes ventilation holes installed on the walls of the chicken coop. An exhaust fan is installed inside each ventilation hole. An L-shaped air duct is installed longitudinally on the wall surface where the inner port of the ventilation hole is located. The vertical section of the L-shaped air duct is flush with and fixed to the wall surface. The horizontal section is located at the bottom, with one end open and fixedly connected to a wind-gathering hood. An air outlet is located at the top of the vertical section facing the ventilation hole. The air outlet is sealed and fixedly connected to the inner port of the ventilation hole. The vertical section contains first and third stage filters, each consisting of three evenly arranged inclined metal filters. A circular plate is located at the center of each of the three metal filters, and a longitudinally arranged transmission rod passes through the three circular plates. The top of the transmission rod is connected to the top of the vertical section via a vibration spring. A dust collection pipe is connected to the bottom of the vertical section. The mesh size of the three metal filters increases sequentially from bottom to top.

[0008] Preferably, it also includes a controller, wherein a vibrator is fixedly connected to the outer wall of the transmission rod, the controller is electrically connected to a power source, and is configured to control the exhaust fan and the vibrator.

[0009] Preferably, the dust collection pipe is a rectangular chute structure. The dust collection pipe is embedded in the wall below the ventilation hole. One end of the dust collection pipe is connected to the bottom of the vertical section, and the other end is connected to a longitudinally arranged first settling pipe. The first settling pipe is located outside the chicken house and is set against the outer surface of the chicken house wall. The bottom end of the first settling pipe is connected to a dust collection box. The bottom of the inner wall of the chute structure is inclined to the outside and downward, and the cross-sectional size gradually increases from the inside to the outside.

[0010] Preferably, the surface of the chicken coop wall where the ventilation hole is located is provided with a chimney structure along the longitudinal direction, and the top of the chimney structure is rotatably connected to a horizontally arranged air guide pipe through a tension bearing, and the top of the air guide pipe is provided with a guide wing plate.

[0011] Preferably, the chimney structure is provided with a second and third stage filter screen. The structure of the second and third stage filter screen is the same as that of the first and third stage filter screen, except that the mesh count of the metal filter screen at the bottom of the second and third stage filter screen is greater than that of the metal filter screen at the top of the first and third stage filter screen.

[0012] Preferably, the bottom of the chimney structure is connected to the dust collection box through a second settling pipe, and the inner walls of the first and second settling pipes are respectively provided with staggered and downward inclined unidirectional guide plates.

[0013] Preferably, the dust collection pipe is equipped with a one-way valve.

[0014] Preferably, the one-way valve includes a rectangular plate, the top of which is hinged to the top wall of the dust collection pipe. The dimensions of the rectangular plate satisfy the following: when the exhaust fan is turned on, due to the suction, the rectangular plate rotates to the vertical section and closes the dust collection pipe; when the exhaust fan is stopped, the rectangular plate droops due to its own weight and a gap is left between its bottom end and the inner wall of the dust collection pipe.

[0015] The beneficial effects of this novel indoor circulating ventilation device for egg-laying hen farming are as follows:

[0016] This new type of filter screen can achieve basic maintenance-free operation of the metal filter screen, ensuring effective ventilation during long-term operation of the exhaust fan. At the same time, by setting up a chimney structure and air duct, this new type of filter screen can achieve natural ventilation without turning on the exhaust fan. Through the first, second and third stage filters, dust in the air can be fully recovered, avoiding pollution of the outside air, thus effectively saving labor and benefiting the healthy growth of laying hens. Attached Figure Description

[0017] Figure 1A cross-sectional view of the novel exhaust fan when it is turned on.

[0018] Figure 2 A cross-sectional view of the novel exhaust fan when it is turned off.

[0019] Figure 3 A front view schematic diagram of the structure of this novel metal filter.

[0020] 1. Chicken house walls; 2. Chicken house roof; 3. Ventilation holes; 4. Exhaust fan; 5. L-shaped air duct; 6. Air condenser; 7. First and third stage filters; 8. Transmission rod; 9. Vibrator; 10. Vibration spring; 11. Chimney structure; 12. Second and third stage filters; 13. Tension bearing; 14. Air duct; 15. Guide vane; 16. Second settling pipe; 17. One-way guide vane; 18. Dust collection box; 19. Dust recovery pipe; 20. One-way valve; 21. Gap; 22. First settling pipe. Detailed Implementation

[0021] The following description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0022] The following embodiments can be understood as a part of the local structure or method of the present invention, or as a combination of embodiments to explain the connotation of a larger range of structures or methods of the present invention.

[0023] An indoor circulating ventilation system for egg-laying hen farming, such as Figure 1-3 As shown, the system includes ventilation holes 3 on the chicken coop wall 1. An exhaust fan 4 is installed inside the ventilation hole 3. An L-shaped air duct 5 is installed vertically on the wall surface where the inner port of the ventilation hole 3 is located. The vertical section of the L-shaped air duct 5 is flush with and fixed to the wall surface. The horizontal section is located at the bottom, with one end open and fixedly connected to a wind-gathering hood 6. An air outlet (not shown in the figure) is located at the top of the vertical section facing the ventilation hole 3. The air outlet is sealed and fixedly connected to the inner port of the ventilation hole 3. A first and third-stage filter screen 7 is installed inside the vertical section. The first and third-stage filter screen 7 consists of three inclined metal filter screens evenly arranged vertically (e.g., ...). Figure 1 , 3As shown in the figure, three metal filters have a circular plate (not marked in the figure) at their center. A longitudinally arranged transmission rod 8 passes through the three circular plates. The top of the transmission rod 8 is connected to the top of the vertical section via a vibration spring 10. The bottom of the vertical section is connected to a dust collection pipe 19. The mesh size of the three metal filters increases sequentially from bottom to top. When the exhaust fan starts, air enters the horizontal section, vertical section, and exhaust through the ventilation holes via the air collector hood. Dust in the airflow passes through the three metal filters sequentially. Because the mesh size of the three metal filters increases sequentially from bottom to top, dust blocked by the upper metal filter can pass through the lower metal filter when it settles, eventually entering the dust collection pipe 19. The transmission rod drives the three metal filters to vibrate with the airflow. During the vibration, the dust adhering to the metal filters falls off, thus avoiding the large amount of tedious manual cleaning.

[0024] Furthermore, such as Figure 1-3 As shown, it also includes a controller (not shown in the figure). A vibrator 9 is fixedly connected to the outer wall of the transmission rod 8. The controller is electrically connected to a power source and is configured to control the exhaust fan 4 and the vibrator 9. The vibrator further improves the dust cleaning effect.

[0025] Furthermore, such as Figure 1-3 As shown, the dust collection pipe 19 is a rectangular chute structure. It is embedded in the wall below the ventilation holes. One end of the dust collection pipe 19 is connected to the bottom of the vertical section, and the other end is connected to a longitudinally arranged first settling pipe 22. The first settling pipe 22 is located outside the chicken house and is fitted against the outer surface of the chicken house wall 1. The bottom end of the first settling pipe 22 is connected to a dust collection box 18. The bottom of the inner wall of the chute structure slopes downwards and outwards, and the cross-sectional dimensions gradually increase from the inside to the outside. Settled dust enters the first settling pipe through the chute structure and eventually enters the dust collection box.

[0026] Furthermore, such as Figure 1-3 As shown, a chimney structure 11 is longitudinally provided on the surface of the chicken house wall 1 where the outer port of the ventilation hole 3 is located. A horizontally arranged air guide pipe 14 is rotatably connected to the top of the chimney structure 11 via a tension bearing 13. A guide vane 15 is provided at the top of the air guide pipe 14. Based on the narrow-tube wind-gathering effect, a high-speed airflow is generated within the air guide pipe 14, thereby reducing the air pressure inside the air guide pipe and causing the airflow within the chimney structure to be discharged upwards. This, in turn, guides the air inside the chicken house to be discharged naturally. This embodiment is suitable for natural ventilation of the chicken house without turning on the exhaust fan.

[0027] Furthermore, such as Figure 1-3As shown, the chimney structure 11 contains a second and third stage filter 12. The structure of the second and third stage filter 12 is the same as that of the first and third stage filter 7, except that the mesh size of the bottom metal mesh of the second and third stage filter 12 is greater than that of the top metal mesh of the first and third stage filter 7. The second and third stage filter 12 further recovers finer dust particles from the air. It is understood that the second and third stage filter 12 can also be equipped with a drive rod and a vibrator.

[0028] Furthermore, such as Figure 1-3 As shown, the bottom end of the chimney structure 11 is connected to the dust collection box 18 via a second settling pipe 16. The inner walls of the first settling pipe 22 and the second settling pipe 16 are respectively provided with staggered, downward-sloping unidirectional guide vanes 17. When the exhaust fan is turned on, as... Figure 1 As shown, the one-way deflector 17 will prevent dust from flowing back into the dust collection box.

[0029] Furthermore, such as Figure 1-3 As shown, the dust collection pipe 19 is equipped with a one-way valve 20.

[0030] Furthermore, such as Figure 1-3 As shown, the one-way valve 20 includes a rectangular plate, the top of which is hinged to the top wall of the dust collection pipe 19. The dimensions of the rectangular plate satisfy the following: when the exhaust fan 4 is turned on, due to suction, the rectangular plate rotates to the vertical section and closes the dust collection pipe (because the diameter of the dust collection pipe on that side is smaller); when the exhaust fan 4 is stopped, the rectangular plate droops due to its own weight, and a gap 21 is left between the bottom end and the inner wall of the dust collection pipe (e.g., ...). Figure 2 As shown in the figure, at this time, the dust will enter the first settling pipe through the gap along the chute structure due to gravity, and finally enter the dust collection box.

[0031] This new design, through the above-mentioned configuration, achieves basic maintenance-free operation of the metal filter, ensuring effective ventilation during long-term operation of the exhaust fan. At the same time, by setting up a chimney structure and air duct, this new design achieves natural ventilation without turning on the exhaust fan. Through the first, second, and third stage filters, dust in the air can be fully recovered, avoiding pollution of the outside air, thus effectively saving labor and benefiting the healthy growth of laying hens.

Claims

1. An indoor circulating ventilation device for breeding of laying hens, characterized in that: The utility model provides a kind of ventilation hole for chicken coop, which comprises a ventilation hole arranged on the wall of the chicken coop, a suction fan is installed inside the ventilation hole, a vertically arranged L-shaped air guide pipe is installed on the wall surface where the inner port of the ventilation hole is located, the vertical section of the L-shaped air guide pipe is attached to the wall surface and is fixed relative to the wall surface, the horizontal section is located at the bottom, the end of the horizontal section away from the wall of the chicken coop is open and is fixedly connected with a wind collecting cover, an air outlet is arranged at the top of the vertical section towards the end of the ventilation hole, the air outlet is sealingly and fixedly connected with the inner port of the ventilation hole, a first three-stage filter screen is arranged inside the vertical section, the first three-stage filter screen is composed of three inclined metal filter screens arranged uniformly from top to bottom, three circular plates are arranged at the centers of the three metal filter screens, a longitudinally arranged transmission rod penetrates through the three circular plates, the top of the transmission rod is connected with the top end of the vertical section through a vibration spring, and a dust recovery pipe is connected with the bottom end of the vertical section.

2. The indoor circulating ventilation device for breeding of laying hens according to claim 1, characterized in that: The utility model also comprises a controller, the outer wall of the transmission rod is fixedly connected with a vibrator, the controller is electrically connected with a power supply and is configured to control the suction fan and the vibrator.

3. The indoor circulating ventilation device for breeding of laying hens according to claim 2, characterized in that: The dust recovery pipe has a rectangular cross-section and is in the form of a chute, the dust recovery pipe is embedded in the wall below the ventilation hole, one end of the dust recovery pipe is in communication with the bottom of the vertical section, the other end of the dust recovery pipe is connected with a first settling pipe arranged longitudinally, the first settling pipe is located outside the chicken coop and is attached to the outer surface of the wall of the chicken coop, the bottom end of the first settling pipe is connected with a dust collecting box, and the inner wall of the dust recovery pipe in the form of a chute is inclined downwardly and outwardly and gradually increases in size from inside to outside.

4. The indoor circulating ventilation device for breeding of laying hens according to claim 3, characterized in that: A chimney structure is arranged on the surface of the wall of the chicken coop where the outer port of the ventilation hole is located in a longitudinal direction, the top of the chimney structure is rotatably connected with a horizontally arranged air guide pipe through a tension bearing, and the top end of the air guide pipe is provided with a guide wing plate.

5. The indoor circulating ventilation device for breeding of laying hens according to claim 4, characterized in that: A second three-stage filter screen is arranged inside the chimney structure, the second three-stage filter screen has the same structure as the first three-stage filter screen, except that the mesh number of the metal filter screen at the bottom of the second three-stage filter screen is greater than the mesh number of the metal filter screen at the top of the first three-stage filter screen.

6. The indoor circulating ventilation device for breeding of laying hens according to claim 5, characterized in that: The bottom end of the chimney structure is connected with the dust collecting box through a second settling pipe, and the inner sides of the pipe walls of the first settling pipe and the second settling pipe are respectively provided with single-direction guide plates arranged alternately and inclined downwardly.

7. The indoor circulating ventilation device for breeding of laying hens according to claim 6, characterized in that: The dust recovery pipe is provided with a one-way valve.

8. The indoor circulating ventilation device for breeding of laying hens according to claim 7, characterized in that: The one-way valve comprises a rectangular plate, the top of the rectangular plate is hingedly connected with the top wall of the dust recovery pipe, and the size of the rectangular plate satisfies the following condition: when the suction fan is started, the rectangular plate rotates to one side of the vertical section due to suction force and closes the dust recovery pipe, and when the suction fan is stopped, the rectangular plate is lowered due to its own gravity and leaves a gap between the bottom end of the rectangular plate and the inner wall of the dust recovery pipe.

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