SPF level chicken farm house with chicken picking conveying device

Abstract

The utility model discloses a kind of SPF grade chicken farm with chicken washing conveying device, including factory building body and chicken washing conveying device, three floors are provided in factory building body, stairwell is provided in each floor, the ground of second floor is provided with the excrement transmission channel that extends to the inside of first floor and is through two layer ground, chicken washing conveying device includes transmission pipeline and buffer slide, transmission pipeline is spliced structure and is arranged along the track of stair, buffer slide is detachably connected in the roof of first floor in inclined mode, and the inlet of buffer slide is sleeved on the outside of the bottom end of excrement transmission channel to make chicken wash enter buffer slide through excrement transmission channel, the staff of each link in the whole conveying process of chicken wash do not contact each other, barrier environment is not vulnerable to outside interference, reduce the health threat to chicken population in raising and waiting to raise, simultaneously reduce the carrying path of staff, transmission speed is fast, improve chicken wash efficiency.

Description

Technical Field

[0001] This utility model relates to the field of SPF chicken farming technology, and in particular to an SPF-grade chicken farm with a culling conveyor device. Background Technology

[0002] Modern egg-laying hen farming places great emphasis on production efficiency. Chicken flocks have a specific rearing cycle, and when their productivity declines and they can no longer generate sufficient profits, they are culled. Conventional chicken farms typically use conveyor belts and other mechanical components to assist in culling. However, in SPF chicken farming, which operates in a Class 10,000 barrier environment, installing fixed conveyor belts would prevent the barrier from being completely sealed, making it unsuitable. As the final stage of the farming process, disease prevention and control during culling are often overlooked. However, the culling process requires significant manual labor for transporting chickens back and forth over long distances. Furthermore, the personnel handling the final handover inevitably come into contact with external vehicles or other personnel, creating a significant risk of external pathogens breaching the farm's disease prevention barrier and posing a health threat to both existing and prospective flocks.

[0003] Therefore, there is an urgent need for a new SPF-grade chicken farm with a culling conveyor system to solve the above-mentioned technical problems. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems, namely, the problem that the disease prevention and control in the existing chicken culling process is often overlooked, the culling process requires a lot of manual labor to carry out back and forth transportation, the transportation route is long, and the last handover personnel inevitably come into contact with external vehicles or have spatial and temporal overlap with external personnel, which can easily cause external pathogens to break through the farm's disease prevention barrier and pose a health threat to the chickens being raised and those waiting to be raised.

[0005] To this end, the present invention provides an SPF-grade chicken farm with a culling conveyor, comprising a farm body and a culling conveyor. The farm body has three floors, each with a stairwell. The stairwells on the first and second floors each have two staircases with a 90° turning angle between them. The first floor is a transfer area, the second floor is a component installation area, and the third floor is an SPF-grade chicken raising room. The environment of the stairwells above the second floor is the same as the barrier environment of the SPF-grade chicken raising room. A through-type conveyor is provided on the floor of the second floor. The system includes a manure transfer channel extending from the ground floor to the interior of the first floor. The culling chicken conveying device comprises a transfer pipe and a buffer slide. The transfer pipe is a modular structure arranged along the staircase. During culling, the bottom end of the transfer pipe passes through the stairwell on the second floor and extends into the interior of the second floor. The top end of the transfer pipe extends into the SPF-grade chicken room on the third floor, allowing the culling chickens placed in the transfer pipe to automatically slide down to the second floor. The buffer slide is detachably connected to the roof of the first floor in an inclined manner, and the entrance of the buffer slide is fitted outside the bottom end of the manure transfer channel so that the culling chickens can enter the buffer slide through the manure transfer channel.

[0006] In the specific embodiment of the SPF-grade chicken farm with culling conveyor described above, the conveyor pipe includes a top pipe, a middle pipe, a first bend pipe, and a bottom pipe. The bottom end of the top pipe is detachably and fixedly connected to the top end of the middle pipe. The middle pipe is distributed along the staircase track above the second-floor stairwell. The bottom end of the middle pipe is detachably and fixedly connected to the bottom pipe through the first bend pipe. In the culling state, the bottom end of the bottom pipe extends into the second floor, and the top end of the top pipe is located in the SPF-grade chicken room on the corresponding floor.

[0007] In the specific embodiment of the SPF-grade chicken farm with culling conveyor described above, the top pipe includes a support pipe, a support plate, and a connector. The top of the support pipe is provided with a funnel-shaped inlet. The bottom of the support pipe is detachably and fixedly connected to the middle pipe. The support plate is fixed to the outer wall of the support pipe and is detachably and fixedly connected to the floor of the SPF-grade chicken farm through the connector.

[0008] In the specific embodiment of the SPF-grade chicken farm with culling conveyor described above, the connecting component is a bolt, and the number of connecting components is at least two. Nuts for connecting with the bolts are embedded in the floor of the SPF-grade chicken farm. In the culling state, the bolts pass through the support plate and are threadedly connected to the nuts. In the specific embodiment of the SPF-grade chicken farm with culling conveyor described above, the bottom pipe includes a second elbow pipe, a connecting pipe, and an output pipe. The connecting pipe is distributed along the staircase track below the second-floor stairwell. The top end of the connecting pipe is detachably and fixedly connected to the first elbow pipe. The bottom end of the connecting pipe is detachably and fixedly connected to the output pipe through the second elbow pipe. The output pipe extends through the wall of the second-floor stairwell into the interior of the second floor. The output pipe is sealed to the wall of the stairwell.

[0009] In the specific embodiment of the SPF-grade chicken farm with culling conveyor described above, a connecting plate is fixedly fitted on the outer wall of the output pipe. The connecting plate is detachably and fixedly connected to the wall of the stairwell. A sealing gasket is provided between the connecting plate and the wall of the stairwell to seal the gap between the output pipe and the wall of the stairwell.

[0010] In the specific implementation of the SPF-grade chicken farm with culling conveyor described above, the second elbow pipe has one bend, and the first elbow pipe has two bends.

[0011] In the specific embodiment of the SPF-grade chicken farm with culling conveyor described above, the culling conveyor further includes a guide cover, which is flared in shape and detachably fixed to the top of the manure transfer channel.

[0012] In the specific embodiment of the SPF-grade chicken farm with culling conveyor described above, the buffer slide includes a guide pipe and a slide body. The guide pipe is fixed to the top of one end of the slide body, and the other end of the slide body is the culling outlet. The diameter of the guide pipe is larger than the diameter of the manure transfer channel. A first connecting rod is hinged to the side wall of the slide body near the guide pipe. Two second connecting rods are hinged to the top of the slide body near the culling outlet. Both the first and second connecting rods are detachably connected to the roof of a floor. In the culling state, the guide pipe is sleeved on the outside of the bottom end of the manure transfer channel, and the slide body is in an inclined state.

[0013] In the specific embodiment of the SPF-grade chicken farm with culling conveyor described above, hooks are provided on the ends of the first connecting rod and the second connecting rod away from the slide body. A first hanging ring and two second hanging rings are fixed on the roof of the first floor. The first hanging ring and the second hanging ring are located on both sides of the manure transfer channel. The two second hanging rings are located on the same side and are distributed side by side. The hook on the first connecting rod is used to hook the first hanging ring, and the hook on the second connecting rod is used to hook the corresponding second hanging ring. In the hooked state, the guide pipe is sleeved on the outside of the bottom end of the manure transfer channel, and the slide body is in an inclined state.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The culling conveyor device designed in this utility model allows culled chickens taken by staff from SPF-grade chicken-raising rooms to automatically slide into the second floor through a conveyor pipe. After being counted by staff on the second floor, the chickens are placed in a manure conveying pipe and fall into a buffer slide on the first floor. They can then fall directly onto a transport vehicle below along the buffer slide. During the entire conveying process, staff at each stage do not come into contact with each other, the barrier environment is not easily disturbed by the outside world, reducing the health threat to the chickens being raised and those waiting to be raised. At the same time, it reduces the handling path for staff, the conveying speed is fast, and the culling efficiency is improved.

[0015] 2. The transmission pipeline is designed as a spliced ​​structure, and the connection between the buffer slide and the first-floor roof is also designed as a detachable structure. This way, when not in use, it can be disassembled without affecting other parts or occupying the stairs. Moreover, the transmission pipeline is not connected to the corridor and is an external structure, which can be replaced and adjusted as needed. Attached Figure Description

[0016] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of the SPF-grade chicken farm with a culling conveyor provided by this utility model; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 yes Figure 1 A magnified view of part B in the middle; Figure 4 yes Figure 1 Left view of the pipe at the first bend in the middle; Figure 5 yes Figure 1 Enlarged view of the structure connecting the intermediate buffer slide to the roof; Figure 6 yes Figure 1 A schematic diagram of the structure of the middle slide.

[0017] List of reference numerals in the attached diagram: 1. Factory building body; 2. Stairwell; 3. Buffer slide; 301. Slide body; 302. Guide pipe; 303. Second connecting rod; 304. First connecting rod; 34. Top pipe; 401. Support pipe; 402. Support plate; 403. Connector; 5. Middle pipe; 6. First elbow pipe; 7. Bottom pipe; 701. Connecting pipe; 702. Second elbow pipe; 703. Output pipe; 8. Sealing gasket; 9. Connecting plate; 10. Stairs; 11. Manure transfer channel; 12. Guide cover; 13. First hanging ring; 14. Second hanging ring; 15. Chicken cage. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the system or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the use of terms such as "first" and "second" to define components is merely for the convenience of distinguishing the aforementioned components. Unless otherwise stated, these terms have no special meaning and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" 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 based on the specific circumstances.

[0021] This utility model relates to the field of SPF (Special Poultry Farming) technology, and in particular to an SPF-grade chicken farm with a culling conveyor device. The aim is to address the problem that disease prevention and control during the existing culling process is often overlooked. The culling process requires a large amount of manual labor for back-and-forth handling, involves long transport routes, and the final handover personnel inevitably come into contact with external vehicles or personnel, making it easy for external pathogens to breach the farm's disease prevention barrier and pose a health threat to existing and prospective chickens. To this end, the present invention provides an SPF-grade chicken farm with a culling conveyor, comprising a farm body and a culling conveyor. The farm body has three floors, each with a stairwell. The first and second floors each have two staircases with a 90° turning angle between them. The first floor is a transfer area, the second floor is a component installation area, and the third floor is an SPF-grade chicken raising room. The environment of the stairwells above the second floor is the same as the barrier environment of the SPF-grade chicken raising room. A manure transfer channel is provided on the ground of the second floor, penetrating the second floor and extending into the first floor. The culling conveyor includes a transfer pipe and a buffer slide. The pipeline has a modular structure and is arranged along the staircase. During the culling process, the bottom end of the pipeline extends through the stairwell on the second floor to the interior of the second floor, while the top end extends into the SPF-grade chicken-raising room on the third floor, allowing the culling chickens placed in the pipeline to automatically slide down to the second floor. The buffer slide is detachably connected to the roof of the first floor in an inclined manner, and the entrance of the buffer slide is fitted on the outside of the bottom end of the manure transfer channel, allowing the culling chickens to enter the buffer slide through the manure transfer channel. Throughout the entire culling process, the staff at each stage do not come into contact with each other, the barrier environment is not easily disturbed by the outside world, reducing the health threat to the existing and waiting chicken flocks, while also reducing the handling path for staff, increasing the transfer speed, and improving the efficiency of culling.

[0022] The following is a detailed description of the SPF-grade chicken farm with a culling conveyor provided in the embodiments of this utility model, with reference to the accompanying drawings.

[0023] See Figure 1This utility model provides an SPF-grade chicken farm with a culling conveyor, including a farm body 1 and a culling conveyor. The farm body 1 has three floors, each with 10 stairwells 2. The first and second floors each have two staircases 10, with a turning angle of 90° between the two staircases 10. The first floor is a transfer area, the second floor is a component installation area, and the third floor is an SPF-grade chicken raising room. The environment of the stairwells 10 2 above the second floor is the same as the barrier environment of the SPF-grade chicken raising room. A through-type conveyor is provided on the ground of the second floor. The second floor extends into the manure transfer channel 11 inside the first floor. The culling chicken conveying device includes a transfer pipe and a buffer slide 3. The transfer pipe has a spliced ​​structure and is arranged along the trajectory of the staircase 10. During the culling process, the bottom end of the transfer pipe passes through the staircase 10 2 on the second floor and extends into the second floor. The top end of the transfer pipe extends into the SPF-grade chicken raising room on the third floor so that the culling chicken placed in the transfer pipe automatically slides down to the second floor. The buffer slide 3 is detachably connected to the roof of the first floor in an inclined manner, and the entrance of the buffer slide 3 is fitted on the outside of the bottom end of the manure transfer channel 11 so that the culling chicken enters the buffer slide 3 through the manure transfer channel 11.

[0024] Specifically, the control cabinet of the SPF system in the main plant is installed on the second floor, specifically in the component installation area. Staircase 10 and the SPF-grade chicken-raising room are under positive pressure under the control of the SPF system. The transfer area is located on the first floor, allowing transport vehicles to enter. Culled chickens slide directly onto the transport vehicles via a buffer slide 3, reducing manual handling. The SPF-grade chicken-raising room contains multiple layers of chicken cages 15, each holding chickens. Workers select culled chickens from the cages 15 and place them in a transfer pipe. The culled chickens automatically slide down the pipe to the second floor, where workers count the culled chickens and transfer them to a manure transfer pipe. The culled chickens then fall down the buffer slide 3 and onto the transport vehicle, achieving automatic loading. Through the culling chicken transfer device, personnel at each stage do not come into contact with each other, the barrier environment is less susceptible to external disturbances, and multiple handling by workers is eliminated, reducing labor intensity. The tilt angle of the buffer slide 3 can be selected within the range of 45°-70°.

[0025] In addition, the transmission pipe is made of thickened PVC material, and the diameter of the round pipe is set according to the actual situation. For example, the diameter is 40cm.

[0026] Each of the 10 stairwells on each floor is equipped with a barrier door to ensure a closed environment between each floor. Staff enter each floor through the barrier doors. In addition, because both the SPF-grade chicken raising room and stairwell 10 are under positive pressure to blow air outwards, outside air cannot enter the SPF-grade chicken raising room through the transmission pipes, thus avoiding contamination.

[0027] In one embodiment, see further. Figure 1 and Figure 4 The transmission pipeline includes a top pipe 34, a middle pipe 5, a first bend pipe 6, and a bottom pipe 7. The bottom end of the top pipe 34 is detachably and fixedly connected to the top end of the middle pipe 5. The middle pipe 5 is distributed along the second-floor staircase 10 and located above the staircase 10. The bottom end of the middle pipe 5 is detachably and fixedly connected to the bottom pipe 7 through the first bend pipe 6. In the culling state, the bottom end of the bottom pipe 7 extends into the second floor, and the top end of the top pipe 34 is located in the SPF-grade chicken raising room on the corresponding floor.

[0028] In one specific embodiment, see [reference] Figures 1-2 The top pipe 34 includes a support pipe 401, a support plate 402, and a connector 403. The top of the support pipe 401 is provided with a funnel-shaped inlet. The bottom of the support pipe 401 is detachably and fixedly connected to the middle pipe 5. The support plate 402 is fixed on the outer wall of the support pipe 401 and is detachably and fixedly connected to the floor of the SPF-grade chicken room through the connector 403.

[0029] Specifically, the connector 403 is a bolt, and there are at least two connectors 403. Nuts for connecting to the bolts are embedded in the floor of the SPF-grade chicken raising room. When the chickens are being culled, the bolts pass through the support plate 402 and are threadedly connected to the nuts. In this way, after the top pipe 34 is installed, the support plate 402 and the connectors 403 together provide support for the transmission pipe. In one specific embodiment, see [reference] Figure 1 The bottom pipe 7 includes a second elbow pipe 702, a connecting pipe 701, and an output pipe 703. The connecting pipe 701 is distributed along the trajectory of the second staircase 10 room 2 and located below the staircase 10. The top end of the connecting pipe 701 is detachably and fixedly connected to the first elbow pipe 6. The bottom end of the connecting pipe 701 is detachably and fixedly connected to the output pipe 703 through the second elbow pipe 702. The output pipe 703 passes through the wall of the second staircase 10 room 2 and extends into the interior of the second floor. The output pipe 703 is sealed to the wall of the staircase 10 room 2.

[0030] In the above embodiments, preferably, see [reference needed]. Figure 3A connecting plate 9 is fixedly fitted onto the outer wall of the output pipe 703. The connecting plate 9 is detachably and fixedly connected to the wall of the stairwell 10 2. A sealing gasket 8 is provided between the connecting plate 9 and the wall of the stairwell 10 2 to seal the gap between the output pipe 703 and the wall of the stairwell 10 2. The sealing gasket 8 is fitted onto the output pipe 703 and glued to the connecting plate 9.

[0031] In the application, to maintain positive pressure in the SPF-grade chicken room, an installation hole is provided on the wall of room 2 of the second-floor staircase. When not culling chickens, an air filter is installed in this installation hole for air outlet. When culling chickens, the air filter is removed, and the output pipe 703 is extended into the second floor through the installation hole. It is then detachably fixed to the wall via a connecting plate 9 to compress the sealing gasket 8, thereby sealing the gap between the output pipe 703 and the installation hole. Connecting bolts are fixed to the wall around the installation hole. The connecting plate 9 has through holes corresponding to the bolts. The through holes on the connecting plate 9 are fitted onto the connecting bolts and fixed with nuts to achieve a detachable fixed connection.

[0032] In the above embodiment, the second elbow pipe 702 has one bend, and the first elbow pipe 6 has two bends. The bending angle of the second elbow pipe 702 can be 120°. (See also...) Figure 4 The first bend angle of the first elbow pipe 6 can be 145°, and the second bend angle can be 150°. In this application, the above bend angles are just examples, and the specific angle values ​​need to be flexibly set according to the actual staircase design data. At the same time, the second bend angle of the first elbow pipe ensures that the connecting pipe 701 and the staircase 10 are in a close fit.

[0033] In the above embodiment, the intermediate pipe 5 is a straight pipe. Connecting flanges are fixed to both ends of the intermediate pipe 5, both ends of the first elbow pipe 6, both ends of the second elbow pipe 702, both ends of the connecting pipe 701, the bottom end of the supporting pipe 401, and the top end of the output pipe 703. The connecting flanges of adjacent pipes are connected by bolts and nuts to achieve a detachable and fixed connection. They can be disassembled when not in use, reducing space occupation. Furthermore, the lengths of the intermediate pipe 5 and the connecting pipe 701 are set according to the actual length of the staircase 10.

[0034] In one embodiment, see Figure 1The chicken culling conveyor also includes a guide cover 12, which is funnel-shaped and detachably fixed to the top of the manure conveying channel 11. The guide cover 12 serves as a guide, enabling the staff on the second floor to smoothly and quickly place the culling chickens into the manure conveying channel 11. The guide cover 12 is detachable from the manure conveying channel 11, so that when not culling chickens, the guide cover 12 can be removed without affecting the manure conveying.

[0035] In one embodiment, see Figures 5-6 The buffer slide 3 includes a guide pipe 302 and a slide body 301. The guide pipe 302 is fixed to the top of one end of the slide body 301, and the other end of the slide body 301 is the chicken rinsing outlet. The diameter of the guide pipe 302 is larger than the diameter of the manure transfer channel 11. A first connecting rod 304 is hinged to the side wall of the slide body 301 near the guide pipe 302. Two second connecting rods 303 are hinged to the top of the slide body 301 near the chicken rinsing outlet. The first connecting rod 304 and the second connecting rod 303 are detachably connected to the roof of the first floor. In the chicken rinsing state, the guide pipe 302 is sleeved on the outside of the bottom end of the manure transfer channel 11, and the slide body 301 is in an inclined state.

[0036] Specifically, hooks are provided on the ends of the first connecting rod 304 and the second connecting rod 303 away from the slide body 301. A first hanging ring 13 and two second hanging rings 14 are fixed on the roof of each floor. The first hanging ring 13 and the second hanging ring 14 are located on both sides of the manure transfer channel 11. The two second hanging rings 14 are located on the same side and are arranged side by side. The hook on the first connecting rod 304 is used to hook the first hanging ring 13, and the hook on the second connecting rod 303 is used to hook the corresponding second hanging ring 14. In the hooked state, the guide pipe 302 is sleeved on the outside of the bottom end of the manure transfer channel 11, and the slide body 301 is in an inclined state.

[0037] The slide body 301 can be a cuboid or cylinder with a hollow internal structure. When the buffer slide 3 is in the installed state, the guide pipe 302 is fitted onto the bottom end of the manure transfer channel 11. This can prevent the buffer slide 3 from swinging and also allow the chickens to fall smoothly onto the slide body 301.

[0038] In the above embodiments, the buffer slide is detachable and easy to install by hooking the hanging ring with a hook. The installation method is simple and convenient, and the disassembly is easy.

[0039] Additionally, it should be noted that the SPF system used for SPF chicken farming is existing technology known to those skilled in the art, and will not be described in detail here.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An SPF-grade chicken farm with a culling conveyor, characterized in that, The system includes the main building and a chicken culling conveyor. The main building has three floors, each with a stairwell. The first and second floors each have two staircases with a 90° turning angle between them. The first floor is the transfer area, the second floor is the component installation area, and the third floor is the SPF-grade chicken raising room. The environment of the stairwells above the second floor is the same as the barrier environment of the SPF-grade chicken raising room. A manure transfer channel runs through the second floor and extends into the first floor. The culling conveyor includes a conveying pipe and a buffer slide. The conveying pipe has a spliced ​​structure and is arranged along the staircase. During the culling process, the bottom end of the conveying pipe extends through the stairwell on the second floor to the interior of the second floor, and the top end of the conveying pipe extends into the SPF-grade chicken raising room on the third floor so that the culling chickens placed in the conveying pipe automatically slide down to the second floor. The buffer slide is detachably connected to the roof of the first floor in an inclined manner, and the entrance of the buffer slide is fitted on the outside of the bottom end of the manure conveying channel so that the culling chickens can enter the buffer slide through the manure conveying channel.

2. The SPF-grade chicken farm with a culling conveyor as described in claim 1, characterized in that, The transmission pipeline includes a top pipe, a middle pipe, a first bend pipe, and a bottom pipe. The bottom end of the top pipe is detachably and fixedly connected to the top end of the middle pipe. The middle pipe is distributed along the staircase above the second-floor stairwell. The bottom end of the middle pipe is detachably and fixedly connected to the bottom pipe through the first bend pipe. In the culling state, the bottom end of the bottom pipe extends into the second floor, and the top end of the top pipe is located in the SPF-grade chicken raising room on the corresponding floor.

3. The SPF-grade chicken farm with a culling conveyor as described in claim 2, characterized in that, The top pipe includes a support pipe, a support plate, and connectors. The top of the support pipe has a funnel-shaped inlet. The bottom of the support pipe is detachably and fixedly connected to the middle pipe. The support plate is fixed to the outer wall of the support pipe and is detachably and fixedly connected to the floor of the SPF-grade chicken room through connectors.

4. The SPF-grade chicken farm with a culling conveyor as described in claim 3, characterized in that, The connector is a bolt, and there are at least two connectors. Nuts for connecting with the bolts are embedded in the floor of the SPF-grade chicken raising room. When the chickens are being culled, the bolts pass through the support plate and are threadedly connected to the nuts.

5. The SPF-grade chicken farm with a culling conveyor as described in claim 3, characterized in that, The bottom pipe includes a second elbow pipe, a connecting pipe, and an output pipe. The connecting pipe is distributed along the staircase track below the second-floor stairwell. The top end of the connecting pipe is detachably and fixedly connected to the first elbow pipe. The bottom end of the connecting pipe is detachably and fixedly connected to the output pipe through the second elbow pipe. The output pipe extends through the wall of the second-floor stairwell into the interior of the second floor. The output pipe is sealed to the wall of the stairwell.

6. The SPF-grade chicken farm with a culling conveyor as described in claim 5, characterized in that, A connecting plate is fixedly fitted on the outer wall of the output pipe. The connecting plate is detachably and fixedly connected to the wall of the stairwell. A sealing gasket is provided between the connecting plate and the wall of the stairwell to seal the gap between the output pipe and the wall of the stairwell.

7. The SPF-grade chicken farm with a culling conveyor as described in claim 5, characterized in that, The second elbow pipe has one bend, while the first elbow pipe has two bends.

8. The SPF-grade chicken farm with a culling conveyor as described in claim 1, characterized in that, The chicken culling conveyor also includes a guide cover, which is flared in shape and is detachably and fixedly connected to the top of the manure conveying channel.

9. The SPF-grade chicken farm with a culling conveyor as described in claim 1, characterized in that, The buffer slide includes a guide pipe and a slide body. The guide pipe is fixed to the top of one end of the slide body, and the other end of the slide body is the chicken culling outlet. The diameter of the guide pipe is larger than the diameter of the manure transfer channel. A first connecting rod is hinged to the side wall of the slide body near the guide pipe. Two second connecting rods are hinged to the top of the slide body near the chicken culling outlet. Both the first and second connecting rods are detachably connected to the roof of the first floor. In the chicken culling state, the guide pipe is sleeved on the outside of the bottom end of the manure transfer channel, and the slide body is in an inclined state.

10. The SPF-grade chicken farm with a culling conveyor as described in claim 9, characterized in that, Both the first connecting rod and the second connecting rod have hooks at the ends away from the slide body. A first hanging ring and two second hanging rings are fixed on the roof of the first floor. The first hanging ring and the second hanging rings are located on both sides of the manure transfer channel. The two second hanging rings are located on the same side and are distributed side by side. The hooks on the first connecting rods are used to hook the first hanging rings, and the hooks on the second connecting rods are used to hook the corresponding second hanging rings. In the hooked state, the guide pipe is sleeved on the outside of the bottom end of the manure transfer channel, and the slide body is in an inclined state.

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