Automatic weighing device and method for free-ranging broiler chickens on flat ground

Abstract

The invention belongs to the technical field of livestock and poultry breeding automation equipment, and particularly relates to an automatic weighing device and method for free-ranging broiler chickens on the flat ground, and the device comprises a moving structure, a trough arranged in the middle of the moving structure, a weighing assembly and a moving handrail assembly which are symmetrically distributed on the two sides of the trough, and a data transmission processing mechanism. The weighing assembly is provided with a weighing space with an adjustable volume, and a weighing part is mounted at the bottom of the weighing assembly; the movable partition plate assemblies on the two sides of the weighing space can move face to face or back to back so as to adapt to broilers of different body types. The movable handrail assembly is in transmission fit with the movable partition plate assembly, and the movable end of the movable handrail assembly can automatically and mildly expel the broiler chickens after weighing. According to the invention, the trough attracts broilers to complete weighing in a natural ingestion state, and the data transmission processing mechanism processes the data in real time and wirelessly sends the data after the weighing part obtains the data, so that unmanned and low-stress automatic weight acquisition is realized; the problems of low efficiency, data distortion, chicken stress and the like existing in a traditional manual capturing and weighing mode are effectively solved.

Description

Technical Field

[0001] This invention belongs to the technical field of automated equipment for livestock and poultry farming, and particularly relates to an automatic weighing device and method for free-range broiler chickens raised on flat land. Background Technology

[0002] In modern broiler farming, body weight is a key indicator for measuring flock health, uniformity, and feed conversion ratio. Regular weighing (usually more than once a week) allows farmers to accurately assess feeding effectiveness and adjust feed formulation and management strategies in a timely manner, which is crucial for avoiding feed waste, controlling farming costs, and improving economic efficiency. Therefore, obtaining flock weight data quickly and accurately is a core element of modern, refined farming management.

[0003] However, the weighing methods commonly used in current poultry farms still rely on traditional manual operations. The specific process involves a farmer entering the chicken coop to capture the chickens, placing them on a platform scale for weighing and recording, or using a suspended scale. This traditional method has revealed many insurmountable shortcomings in practical application:

[0004] First, manual operation is extremely inefficient and labor-intensive. In large-scale farms, catching and weighing thousands of chickens one by one is a heavy and time-consuming task that easily leads to staff fatigue and makes it difficult to perform frequently and on a large scale, thus greatly reducing the timeliness and comprehensiveness of data collection.

[0005] Secondly, the capture process causes a strong stress response in chickens. When chased and captured, chickens struggle in fear, which not only affects their physical and mental health but also directly leads to inaccurate weighing readings. This is because the struggle of chickens under stress introduces dynamic variables, making the measured weight unable to reflect their true static weight, thus misleading farming management decisions.

[0006] Furthermore, existing weighing equipment lacks adaptability. Broilers of different ages vary significantly in size, and fixed weighing cages or spaces cannot be flexibly adjusted to meet the full growth needs from chicks to adults. Either the space is too large to effectively restrict the chickens' movement, affecting weighing, or the space is too small, causing discomfort or preventing the chickens from entering.

[0007] In summary, existing technologies suffer from three major drawbacks: low efficiency, susceptibility to biological stress leading to data distortion, and poor equipment versatility. These shortcomings severely restrict the automated and accurate collection of broiler weight data in free-range farming on flat land.

[0008] Therefore, there is an urgent need for an automatic weighing method and device for free-range broiler chickens on flat land to solve the above problems. Summary of the Invention

[0009] The purpose of this invention is to provide an automatic weighing device and method for free-range broiler chickens raised on flat land, so as to solve the above-mentioned problems.

[0010] To achieve the above objectives, the present invention provides the following solution:

[0011] An automatic weighing device for free-range broiler chickens on flat land includes a movable structure, a feed trough in the middle of the movable structure, and weighing components and movable railing components on both sides of the feed trough.

[0012] The weighing assembly includes at least one weighing space, and a weighing section is provided at the bottom of the weighing space;

[0013] The movable end of the movable railing assembly is movable within the weighing space, and the movable end of the movable railing assembly drives the broiler chickens from the inside to the outside along the weighing space;

[0014] Movable partition assemblies are respectively provided on the left and right sides of the weighing space. The fixed end of the movable partition assembly is connected to the movable structure, and the movable end of the movable partition assembly moves to adjust the volume of the weighing space.

[0015] The movable end of the movable railing assembly is in transmission engagement with the movable end of the movable partition assembly;

[0016] It also includes a data transmission processing mechanism disposed on the movable structure. The data transmission processing mechanism is electrically connected to the weighing unit and is used to collect, process and transmit broiler weight data.

[0017] Optionally, the movable partition assembly includes a first limiting adjustment plate and a second limiting adjustment plate. The first limiting adjustment plate is fixedly connected to the movable structure, and the second limiting adjustment plate is slidably connected to the movable structure. A first driving structure is provided between the first limiting adjustment plate and the second limiting adjustment plate. The fixed end of the first driving structure is fixedly connected to the movable structure, and the movable end of the first driving structure is fixedly connected to the second limiting adjustment plate.

[0018] A protective strip is fixed between one end of the first limit adjustment plate and one end of the second limit adjustment plate.

[0019] Optionally, the first driving structure includes a slide rail, which is fixedly connected to the moving structure. A slider is slidably fitted onto the slide rail. The movable end of a cylinder is fixed to the slider. The fixed end of the cylinder is fixed to the moving structure via a cylinder bracket. The slider is fixed to the second limit adjustment plate. The first limit adjustment plate is fixed to the moving structure via a pad.

[0020] Optionally, the movable railing assembly includes two main crossbars, which are slidably engaged with the first limiting adjustment plate. The main crossbars are driven by a second driving structure, and the fixed end of the second driving structure is fixed to the movable structure.

[0021] A plurality of guardrail sections are provided between the two main crossbars, and each guardrail section corresponds to one of the weighing spaces; the guardrail sections are slidably connected to the main crossbars.

[0022] An inner tie rod is coaxially sleeved inside the main crossbar. The inner tie rod is slidably engaged with the main crossbar. One end of the inner tie rod is connected to the corresponding second limit adjustment plate. The inner tie rod is also connected to the guardrail section via a transmission connection.

[0023] Optionally, the guardrail includes several support rods, each with a sliding ring fixed at both ends. The support rod and the main crossbar are slidably engaged through a sliding groove. The inner pull rod passes through several sliding rings and is slidably engaged with the sliding rings. A spring is provided between two adjacent sliding rings and is sleeved on the inner pull rod.

[0024] Within the same weighing space, two limiting rings are provided inside the main crossbar. One of the limiting rings is fixedly connected to the inner wall of the main crossbar, and the other limiting ring is coaxially fixedly connected to the inner pull rod. Several slip rings are located between the two limiting rings.

[0025] When the second limiting adjustment plate moves to reduce the volume of the weighing space, the inner pull rod moves outward to the outside of the main crossbar along with the corresponding second limiting adjustment plate, the distance between the two limiting rings decreases, the springs between the two limiting rings are compressed, and the distance between the two adjacent support rods decreases.

[0026] Optionally, the second drive structure includes a cover plate fixed to the movable structure. A fixed end of a motor is fixedly connected to the cover plate, and a gear is coaxially fixedly connected to the movable end of the motor. One end of a chain is driven by the gear, and the other end of the chain is rotatably engaged with the movable structure through a sprocket. A buckle is fixed to the chain, and the movable end of a slide rail assembly is fixedly connected to the buckle. The fixed end of the slide rail assembly is fixedly connected to the first limit adjustment plate, and the buckle is fixedly connected to the main crossbar.

[0027] Optionally, the second limit adjustment plate is fixedly connected to the fixed end of another slide rail assembly, and the movable end of the slide rail assembly is fixed to the inner pull rod by a fastener.

[0028] Optionally, the slide rail assembly includes a mounting base, one end of which is rotatably connected to a ball bearing, the ball bearing being slidably engaged with a guide rail, the guide rail being fixed to the corresponding first limit adjustment plate / second limit adjustment plate, and the mounting base being fixedly connected to the corresponding buckle / fastener.

[0029] Optionally, the weighing unit includes a mounting base fixed to the movable structure, the mounting base being fixed to the fixed end of a cantilever beam load cell, and the movable end of the cantilever beam load cell being in contact with the bottom of the weighing space.

[0030] A method for using an automatic weighing device for free-range broiler chickens in flat areas, comprising the following steps:

[0031] Place the device in a suitable location inside the chicken coop and adjust the volume of the weighing space;

[0032] Feed is placed into the feed trough;

[0033] After any broiler enters the weighing space, its head passes through the movable end of the moving railing assembly and feeds in the feed trough. After the weighing unit obtains the weight of the broiler, the movable end of the moving railing assembly moves to drive the broiler away.

[0034] The data transmission processing unit collects, processes, and transmits broiler weight data.

[0035] Compared with the prior art, the present invention has the following advantages and technical effects:

[0036] The automatic weighing device for free-range broiler chickens provided in this application seamlessly integrates the weighing process with the chickens' natural feeding behavior. The broilers are weighed imperceptibly while actively feeding, fundamentally eliminating the stress response caused by capture. This not only ensures animal welfare but also guarantees the high authenticity and accuracy of the obtained weight data, providing a reliable basis for refined farming management.

[0037] In terms of efficiency, the device achieves full-process automation. From the chickens entering on their own, accurate weighing, wireless data transmission to automatic guidance and removal, it forms a highly efficient and continuous closed-loop operation, greatly reducing labor intensity and significantly improving the efficiency of periodic weighing of large flocks of chickens. The device's unique adaptive adjustment capability is another major highlight. Through the linkage design of the movable partition components and the moving railing components, the volume of the weighing space can be flexibly adjusted, allowing one set of equipment to adapt to the body size changes of broilers at different growth stages, improving the equipment's versatility and economy.

[0038] Ultimately, the device converts weight data into digital information that can be transmitted in real time, promoting the digital and intelligent upgrading of aquaculture management. It has shown great potential in reducing aquaculture costs, improving feed conversion rates and overall economic benefits, and provides an efficient, accurate and user-friendly automated weighing solution for free-range farming in flat areas. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0042] Figure 3 This is a schematic diagram of the guardrail structure of the present invention;

[0043] Figure 4 This is a schematic diagram of the second driving structure of the present invention;

[0044] Figure 5 This is a detailed diagram of the guardrail structure of the present invention;

[0045] Figure 6 This is a schematic diagram of the first driving structure of the present invention;

[0046] Figure 7 This is a schematic diagram of the limit adjustment plate of the present invention;

[0047] Figure 8 This is a schematic diagram of the control section of the present invention;

[0048] The components include: 1. Weighing plate; 2. Mounting base; 3. Cantilever beam load cell; 4. Main crossbar; 5. Support rod; 6. Spring; 7. Inner tie rod; 8. Fastener; 9. Motor; 10. Gear; 11. Chain; 12. Buckle; 13. Mounting seat; 14. Ball bearing; 15. Guide rail; 16. Cylinder; 17. Cylinder bracket; 18. Slide rail; 19. Slider; 20. Pad; 21. First limit adjustment plate; 22. Second limit adjustment plate; 23. Bottom shell; 24. Cover plate; 25. Front surround; 26. Rear surround; 27. Protective net; 28. Protective rubber strip; 29. ​​Chassis. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] Reference Figures 1 to 8 The present invention discloses an automatic weighing device for free-range broiler chickens on flat land, including a movable structure, a feed trough in the middle of the movable structure, and weighing components and movable railing components on both sides of the feed trough.

[0052] The weighing assembly includes at least one weighing space, with a weighing section disposed at the bottom of the weighing space;

[0053] The movable end of the movable railing assembly is moved and set within the weighing space, and the movable end of the movable railing assembly drives the broiler chickens from the inside to the outside along the weighing space;

[0054] Movable partition assemblies are installed on the left and right sides of the weighing space. The fixed end of the movable partition assembly is connected to the moving structure, and the movable end of the movable partition assembly moves to adjust the volume of the weighing space.

[0055] The movable end of the movable railing assembly is in transmission engagement with the movable end of the movable partition assembly;

[0056] It also includes a data transmission processing mechanism, which is installed on the mobile structure. The data transmission processing mechanism is electrically connected to the weighing unit and is used to collect, process and transmit broiler weight data.

[0057] Before use, place the device in a suitable position within the chicken coop using its movable structure, ensuring the feed troughs are filled with feed to attract the broilers. Before starting the weighing operation, adjust the volume of the weighing spaces on both sides by moving the movable end of the movable partition assembly according to the age and size of the flock. This ensures the space comfortably accommodates a single broiler while effectively limiting excessive movement, preparing for accurate weighing. When the broiler is attracted by the feed in the trough, its head extends towards the trough, and its body naturally enters the preset weighing space. At this point, the broiler's weight is entirely supported and sensed by the weighing unit located at the bottom of the weighing space. The weighing unit instantly detects the broiler's weight signal, and the data transmission and processing mechanism electrically connected to it is activated to collect, convert, and process the weight data. The data is then wirelessly transmitted to a remote management terminal for automated data recording. After successful data acquisition, the movable end of the moving barrier component begins to move. It moves smoothly from the end closest to the feed trough to the end furthest away from the feed trough within the weighing space. This process is like a gentle pusher, naturally driving the weighed chickens away from the weighing space, thus making room for the next chicken to enter. The entire process of driving away chickens requires no manual intervention, achieving continuous automated operation.

[0058] The technological benefits of this series of interconnected operations are significant and multifaceted: First, the device creatively combines the weighing process with the broiler's natural feeding behavior. The broilers are weighed while actively feeding, completely avoiding the strong stress response caused by traditional manual handling. This not only ensures the welfare of the poultry but also guarantees the accuracy and reliability of the obtained weight data, avoiding measurement errors caused by struggling. Second, the entire process is highly automated, forming an efficient closed loop from the broilers' self-entry, automatic weighing, wireless data transmission, to automatic removal. This greatly reduces the labor intensity of farm workers and significantly improves the efficiency of regular weighing of large flocks. Third, the adjustable volume of the weighing space via movable partition components allows the same device to adapt to changes in body size at different growth stages from chicks to adults, enhancing the equipment's versatility and economy, and reducing equipment investment costs for farms. Finally, the integrated data transmission and processing mechanism enables real-time digital management of weight data, providing solid data support for farms to implement refined feeding practices, optimize feed formulations, and improve overall economic efficiency.

[0059] The data transmission processing unit includes a controller, a data acquisition unit, a wireless unit, and a battery management unit.

[0060] The controller is an STM32 controller, the acquisition unit is a high-precision ADC analog-to-digital converter, and the wireless unit is a Wi-Fi or Bluetooth module.

[0061] The controller, acquisition unit, wireless unit, and battery management unit can be connected and assembled according to the existing connection method.

[0062] The acquisition unit is bridged between the load cell and the core controller. It is responsible for amplifying and filtering the weak analog signal output by the load cell and converting it into a digital signal, laying the foundation for subsequent processing.

[0063] The wireless unit enables long-distance, wireless communication.

[0064] The controller processes data by running a weighted algorithm, which is an existing algorithm that can calculate average weight to eliminate minor fluctuations and determine data validity, such as removing outliers caused by the chickens' vigorous exercise, thereby obtaining stable and reliable weight data.

[0065] Furthermore, the mobile structure includes a chassis 29, which is rotated at its four corners with wheels. The front surround 25 and the rear surround 26 are fixed at both ends of the chassis 29, respectively. The material trough, weighing component and mobile railing component are located between the front surround 25 and the rear surround 26. A bottom shell 23 is also fixed on the chassis 29.

[0066] Furthermore, several weighing spaces share the same weighing plate 1 as the base plate, and the weighing plate 1 is fixed to the chassis 29.

[0067] A protective net 27 is installed between the front bumper 25 and the rear bumper 26, covering the top of the material trough.

[0068] As an optional implementation, the movable partition assembly includes a first limiting adjustment plate 21 and a second limiting adjustment plate 22. The first limiting adjustment plate 21 is fixedly connected to the movable structure, and the second limiting adjustment plate 22 is slidably connected to the movable structure. A first driving structure is provided between the first limiting adjustment plate 21 and the second limiting adjustment plate 22. The fixed end of the first driving structure is fixedly connected to the movable structure, and the movable end of the first driving structure is fixedly connected to the second limiting adjustment plate 22.

[0069] A protective strip 28 is fixed between one end of the first limit adjustment plate 21 and one end of the second limit adjustment plate 22.

[0070] When it is necessary to accommodate broilers of different sizes, the user operates the device on the client side, transmitting control signals wirelessly to the controller. The first drive structure receives the control signals from the controller and pushes the second limit adjustment plate 22 to move relative to the fixed first limit adjustment plate 21, thereby precisely adjusting the width of the weighing space between them. The protective strip 28, fixed between one end of the two plates, extends or retracts accordingly, always covering the gap and effectively preventing injury to the chickens. This design achieves flexible and safe adjustment of the weighing channel volume, improving the equipment's versatility and animal welfare.

[0071] As an optional implementation, the first drive structure includes a slide rail 18, which is fixedly connected to the movable structure. The slide rail 18 is slidably fitted with a slider 19, and the slider 19 is fixed with the movable end of a cylinder 16. The fixed end of the cylinder 16 is fixed to the movable structure by a cylinder bracket 17. The slider 19 is fixed to a second limit adjustment plate 22, and the first limit adjustment plate 21 is fixed to the movable structure by a pad 20.

[0072] When the weighing space needs to be adjusted, the fixed end of cylinder 16 is supported by cylinder support 17, and its movable end drives slider 19 to slide precisely along fixed slide rail 18. Slider 19 drives the second limit adjustment plate 22 fixed thereto to move, thereby changing the distance between it and the first limit adjustment plate 21 fixed by pad block 20. This design achieves stable and linear adjustment of the weighing channel width, ensuring that the device can adapt to broilers of different sizes.

[0073] As an optional implementation, the movable railing assembly includes two main crossbars 4, which are slidably engaged with the first limiting adjustment plate 21. The main crossbars 4 are connected to a second driving structure, and the fixed end of the second driving structure is fixedly connected to the movable structure.

[0074] Several guardrail sections are provided between the two main crossbars 4, and each guardrail section corresponds to a weighing space; the guardrail sections are slidably connected to the main crossbars 4.

[0075] An inner tie rod 7 is coaxially sleeved inside the main crossbar 4. The inner tie rod 7 is slidably engaged with the main crossbar 4. One end of the inner tie rod 7 is connected to the corresponding second limit adjustment plate 22. The inner tie rod 7 is connected to the guardrail section in a transmission manner.

[0076] When the second limit adjustment plate 22 moves to adjust the weighing space, it simultaneously drives the inner pull rod 7 connected to it to slide within the main crossbar 4. The movement of the inner pull rod 7 further drives the guardrail section connected to it, causing the spacing of the guardrail section to change adaptively, thereby precisely adjusting the feeding space of the broiler's neck. After weighing is completed, once the controller obtains a stable mass of the broiler, it sends a control signal to the second drive structure. The second drive structure starts, driving the two main crossbars 4 to slide along the first limit adjustment plate 21, thereby causing all the guardrail sections to move as a whole, smoothly driving the broiler away from the weighing space.

[0077] This design links the limit adjustment with the neck rail spacing adjustment, ensuring that broilers of different sizes can be positioned comfortably and accurately. At the same time, the overall moving rail assembly enables efficient and gentle automated herding, significantly improving weighing efficiency and reducing stress on the chickens.

[0078] As an optional implementation, the guardrail includes several support rods 5, with slip rings fixed at both ends of the support rods 5. The support rods 5 and the main crossbar 4 are slidably engaged through a sliding groove. The inner tie rod 7 passes through several slip rings and is slidably engaged with the slip rings. A spring 6 is provided between two adjacent slip rings and is sleeved on the inner tie rod 7.

[0079] Within the same weighing space, two limiting rings are provided inside the main crossbar 4. One limiting ring is fixedly connected to the inner wall of the main crossbar 4, and the other limiting ring is coaxially fixedly connected to the inner pull rod 7. Several slip rings are located between the two limiting rings.

[0080] When the second limit adjustment plate 22 moves to reduce the weighing space volume, the inner pull rod 7 moves outward to the outside of the main crossbar 4 along with the corresponding second limit adjustment plate 22, the distance between the two limit rings decreases, the springs 6 between the two limit rings are compressed, and the distance between the two adjacent support rods 5 decreases.

[0081] When it is necessary to accommodate smaller broiler chickens, the second limiting adjustment plate 22 moves to reduce the weighing space volume. At this time, the inner pull rod 7 connected to the second limiting adjustment plate 22 is pulled outward. The movement of the inner pull rod 7 drives a limiting ring fixed to it, reducing the distance between the limiting ring and another limiting ring fixed inside the main crossbar 4. This action forces all the springs 6 sleeved on the inner pull rod 7 between the two limiting rings to be compressed. The compression force of the springs 6 acts on the slip rings on both sides, and each support rod 5 has a slip ring fixed at both ends, and the slip ring is slidably engaged with the main crossbar 4 through a sliding groove. Therefore, under pressure, the distance between two adjacent support rods 5 decreases accordingly.

[0082] This ingenious mechanical linkage design allows the adjustment of the weighing space in the torso to be automatically and synchronously converted into precise adjustment of the neck feeding space. It ensures that when broilers of different body widths enter the weighing space, their necks are comfortably guided and limited by appropriately spaced support rods 5, preventing chickens from retreating and avoiding feed waste caused by excessive space, significantly improving the device's adaptability to broilers of different ages and the accuracy of weighing data.

[0083] As an optional implementation, the second drive structure includes a cover plate 24 fixed to the movable structure. The fixed end of the motor 9 is fixedly connected to the cover plate 24. The movable end of the motor 9 is coaxially fixedly connected to a gear 10. The gear 10 drives one end of a chain 11. The other end of the chain 11 is rotatably engaged with the movable structure through a sprocket. A buckle 12 is fixedly connected to the chain 11. The movable end of the slide rail assembly is fixedly connected to the buckle 12. The fixed end of the slide rail assembly is fixedly connected to the first limit adjustment plate 21. The buckle 12 is fixedly connected to the main crossbar 4.

[0084] When the weighing is complete and the broilers need to be removed, the motor 9 fixed on the cover plate 24 starts, driving the coaxially connected gear 10 to rotate, which in turn drives the chain 11 to rotate. The buckle 12 fixed on the chain 11 moves accordingly. Since the buckle 12 is fixed to both the main crossbar 4 and the movable end of the slide rail assembly, it pulls the entire main crossbar 4 to slide smoothly along the slide rail assembly.

[0085] This design integrates the drive source and transmission mechanism onto the cover plate 24, resulting in a compact structure. Reliable and smooth power transmission to the moving barrier assembly is achieved through chain drive, ensuring accurate execution of the drive-away action and effectively completing the automated weighing cycle.

[0086] As an optional implementation, the fixed end of another slide rail assembly is fixedly connected to the second limit adjustment plate 22, and the movable end of the slide rail assembly is fixed to the inner pull rod 7 by fastener 8.

[0087] As an optional implementation, the slide rail assembly includes a mounting base 13, one end of which is rotatably connected to a ball bearing 14. The ball bearing 14 is slidably fitted with a guide rail 15. The guide rail 15 is fixed to the corresponding first limit adjustment plate 21 / second limit adjustment plate 22. The mounting base 13 is fixedly connected to the corresponding buckle 12 / fastener 8.

[0088] The slide rail assembly plays a crucial bridging role in the adjustment and driving process of the device, and its use and effect can be divided into two main stages:

[0089] During the space adjustment phase, when it is necessary to accommodate broilers of different sizes, the movement of the second limit adjustment plate 22 will cause the guide rail 15 fixed on it to move together. The mounting base 13, which is slidably engaged with the guide rail 15 through the ball bearing 14, will also be displaced. Since the mounting base 13 is fixed to the inner tie rod 7 through the fastener 8, the linear movement of the second limit adjustment plate 22 is accurately transmitted to the inner tie rod 7, thus achieving the linkage adjustment of the symmetrical weight space and the distance between the support rods 5.

[0090] During the decoy action phase, when the weighing is complete and the broilers need to be decoyed, the motor 9 drives the buckle 12, which is fixed to the chain, to move via the gear 10 and chain 11. The buckle 12 is fixed to the mounting base 13 of another set of slide rail components, and the mounting base 13 slides on the guide rail 15, which is fixed to the first limit adjustment plate 21, via ball bearings 14. Since the mounting base 13 is ultimately connected to the main crossbar 4, the rotational motion of the chain 11 is converted into a smooth linear motion of the entire moving barrier assembly, thus realizing the decoy function.

[0091] The cooperation between the ball bearing 14 and the guide rail 15 ensures low friction, high stability, and high precision during adjustment and drive, preventing jamming. Secondly, its modular design of key moving parts allows for reliable and smooth execution of complex linkage adjustments and disengagement actions, guaranteeing the stability and durability of the device over long-term use. Ultimately, this design forms the core mechanical foundation for realizing the device's automation and adaptive functions.

[0092] As an optional implementation, the weighing unit includes a mounting base 2, which is fixed on the movable structure. The mounting base 2 is fixedly connected to the fixed end of the cantilever beam load cell 3, and the movable end of the cantilever beam load cell 3 is arranged in contact with the bottom of the weighing space.

[0093] When the broiler enters the weighing space and stands on its bottom, its weight acts directly on the weighing plate 1, which is in contact with the moving end of the cantilever beam load cell 3. This pressure causes the cantilever beam load cell 3 to deform and output an electrical signal. The data feedback from the cantilever beam load cell 3 is converted into a digital signal by the acquisition unit, while its fixed end is securely connected to the moving structure by the mounting base 2, providing reliable rigid support for accurate measurement.

[0094] This direct-contact installation method effectively reduces energy loss and interference during force transmission, ensuring the accuracy and stability of weighing data and providing key technical support for automated weight monitoring.

[0095] A method for using an automatic weighing device for free-range broiler chickens in flat areas, comprising the following steps:

[0096] Place the device in a suitable location inside the chicken coop and adjust the volume of the weighing space;

[0097] Feed is placed into the feed trough;

[0098] After any broiler enters the weighing space, its head passes through the movable end of the moving railing assembly and it feeds in the feed trough. After the weighing unit obtains the weight of the broiler, the movable end of the moving railing assembly moves to drive the broiler away.

[0099] The data transmission processing unit collects, processes, and transmits broiler weight data.

[0100] First, before use, the operator places the device in a suitable, open area within the chicken coop using its movable structure. Then, based on the age and size of the chickens to be weighed, the position of the movable partition assembly is adjusted via a drive mechanism such as a cylinder, precisely setting the volume of the weighing space. This ensures the space can comfortably accommodate a single broiler while effectively limiting excessive movement, preparing for accurate weighing. Once preparation is complete, an appropriate amount of feed is placed in the feed trough in the center of the device, attracting the chickens using their natural feeding instincts.

[0101] When the broiler is attracted by the feed and walks towards the device, it naturally enters the pre-set weighing space. Its torso is positioned within the space defined by the movable partition assembly, while its head extends into the feed trough through the gaps between the movable railing components, such as support rods. The weighing unit begins operation the instant the broiler stands stably on the weighing plate at the bottom of the weighing space. Its core component, the cantilever beam load cell, senses the broiler's weight and immediately generates an analog electrical signal proportional to that weight.

[0102] At this point, the data transmission processing mechanism is activated and begins to execute a series of sophisticated data processing tasks. First, the acquisition unit converts the feedback data from the cantilever beam load cell into a digital signal. Then, the core controller receives this digital signal and processes the data by running internal algorithms. Throughout the process, the battery management unit continuously provides a stable and clean power supply to all electronic components, including the sensor, controller, acquisition unit, and wireless unit, and manages the charging and discharging of the battery to ensure that the device can work stably for a long time in the chicken coop environment. This is the energy foundation for the reliable operation of the entire system.

[0103] Once the controller confirms valid data collection, it packages the processed weight data wirelessly via a wireless unit (Wi-Fi or Bluetooth module) and transmits it wirelessly to a remote receiving device such as a computer server or mobile terminal. This enables automated data recording and cloud storage, facilitating real-time monitoring and historical data analysis for farmers. Almost simultaneously with the data transmission command, the controller generates another control command to activate the drive motor. The motor, through a gear and chain mechanism, drives the movable end of the moving fence assembly—the entire guardrail structure—to smoothly move from the end closest to the feed trough towards the outside of the device. This action acts like a gentle pusher, naturally removing the weighed chickens from the weighing space, thus making room for the next chicken. The entire removal process requires no manual intervention, achieving a continuous and efficient automated operation cycle.

[0104] In summary, this invention seamlessly integrates multiple processes, including weighing, data processing, wireless communication, and automatic decoy, forming an intelligent closed-loop operation. Its ultimate technical benefits are comprehensive and significant: it eliminates the stress associated with traditional manual weighing, ensuring animal welfare and data accuracy; full automation significantly reduces labor intensity and improves weighing efficiency; precise data acquisition and wireless transmission provide a solid data foundation for refined animal husbandry management; and the entire system, supported by a battery management unit, achieves stable and reliable long-term operation.

[0105] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0106] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for automatically weighing floor-raised broiler chickens, characterized in that, It includes a movable structure, with a material trough in the middle of the movable structure, and weighing components and movable railing components respectively on both sides of the material trough; The weighing assembly includes at least one weighing space, and a weighing section is provided at the bottom of the weighing space; The movable end of the movable railing assembly is movable within the weighing space, and the movable end of the movable railing assembly drives the broiler chickens from the inside to the outside along the weighing space; Movable partition assemblies are respectively provided on the left and right sides of the weighing space. The fixed end of the movable partition assembly is connected to the movable structure, and the movable end of the movable partition assembly moves to adjust the volume of the weighing space. The movable end of the movable railing assembly is in transmission engagement with the movable end of the movable partition assembly; It also includes a data transmission processing mechanism disposed on the movable structure. The data transmission processing mechanism is electrically connected to the weighing unit and is used to collect, process and transmit broiler weight data.

2. The automatic weighing device for flat ground free-range broiler chickens according to claim 1, characterized in that The movable partition assembly includes a first limiting adjustment plate (21) and a second limiting adjustment plate (22). The first limiting adjustment plate (21) is fixedly connected to the movable structure, and the second limiting adjustment plate (22) is slidably connected to the movable structure. A first driving structure is provided between the first limiting adjustment plate (21) and the second limiting adjustment plate (22). The fixed end of the first driving structure is fixedly connected to the movable structure, and the movable end of the first driving structure is fixedly connected to the second limiting adjustment plate (22). A protective strip (28) is fixed between one end of the first limiting adjustment plate (21) and one end of the second limiting adjustment plate (22).

3. The automatic weighing device for flat ground free-range broilers according to claim 2, characterized in that: The first driving structure includes a slide rail (18), which is fixedly connected to the moving structure. The slide rail (18) is slidably fitted with a slider (19). The slider (19) is fixed with the movable end of a cylinder (16). The fixed end of the cylinder (16) is fixed to the moving structure by a cylinder bracket (17). The slider (19) is fixed to the second limit adjustment plate (22). The first limit adjustment plate (21) is fixed to the moving structure by a pad (20).

4. The automatic weighing device for flat ground free-range broilers according to claim 2, characterized in that: The movable railing assembly includes two main crossbars (4), which are slidably engaged with the first limiting adjustment plate (21). The main crossbars (4) are connected to a second driving structure, and the fixed end of the second driving structure is fixed to the movable structure. A plurality of guardrail sections are provided between the two main crossbars (4), and the guardrail sections correspond one-to-one with the weighing space; the guardrail sections are slidably connected to the main crossbars (4); An inner tie rod (7) is coaxially sleeved inside the main crossbar (4). The inner tie rod (7) is slidably engaged with the main crossbar (4). One end of the inner tie rod (7) is connected to the corresponding second limit adjustment plate (22). The inner tie rod (7) is connected to the guardrail section in a transmission manner.

5. The automatic weighing device for flat ground free-range broilers according to claim 4, characterized in that: The guardrail part comprises a plurality of support rods (5), both ends of the support rod (5) are fixed with a sliding ring, the support rod (5) is slidably connected with the main cross rod (4) through a sliding groove, the inner pull rod (7) passes through a plurality of sliding rings, and the inner pull rod (7) is slidably connected with the sliding ring, a spring (6) is arranged between adjacent two sliding rings, and the spring (6) is sleeved on the inner pull rod (7); In the same weighing space, two limiting rings are arranged in the main cross rod (4), one of the limiting rings is fixedly connected with the inner wall of the main cross rod (4), and the other limiting ring is coaxially fixedly connected with the inner pull rod (7); a plurality of sliding rings are located between the two limiting rings; When the second limiting adjusting plate (22) moves to reduce the volume of the weighing space, the inner pull rod (7) is drawn out to the outside of the main cross rod (4) along the corresponding second limiting adjusting plate (22), the distance between the two limiting rings is reduced, the springs (6) between the two limiting rings are compressed, and the distance between the adjacent two support rods (5) is reduced.

6. The automatic weighing device for flat ground free-range broilers according to claim 4, characterized in that: The second driving structure comprises a cover plate (24) fixed on the moving structure, a fixed end of a motor (9) is fixedly connected with the cover plate (24), a movable end of the motor (9) is coaxially fixedly connected with a gear (10), one end of a chain (11) is driven by the gear (10), the other end of the chain (11) is rotatably connected with the moving structure through a sprocket, a buckle (12) is fixed on the chain (11), a movable end of a slide rail assembly is fixedly connected with the buckle (12), a fixed end of the slide rail assembly is fixedly connected with the first limiting adjusting plate (21), and the buckle (12) is fixedly connected with the main cross rod (4).

7. The automatic weighing device for flat ground free-range broilers according to claim 6, characterized in that: The second limiting adjusting plate (22) is fixedly connected with a fixed end of another slide rail assembly, and a movable end of the slide rail assembly is fixedly connected with the inner pull rod (7) through a fastener (8).

8. The automatic weighing device for flat ground free-range broilers according to claim 7, characterized in that: The slide rail assembly comprises a mounting seat (13), one end of the mounting seat (13) is rotatably connected with a ball (14), the ball (14) is slidably connected with a guide rail (15), the guide rail (15) is fixedly connected with the corresponding first limiting adjusting plate (21) / second limiting adjusting plate (22), and the mounting seat (13) is fixedly connected with the corresponding buckle (12) / fastener (8).

9. The automatic weighing device for flat ground free-range broilers according to claim 1, characterized in that: The weighing part comprises a mounting base (2) fixed on the moving structure, a fixed end of a cantilever beam type load cell (3) is fixedly connected with the mounting base (2), and a movable end of the cantilever beam type load cell (3) is arranged in contact with the bottom of the weighing space.

10. A method for using the automatic weighing device for flatly and freely raised broilers, using the automatic weighing device for flatly and freely raised broilers according to any one of claims 1-9, characterized in that, The method comprises the following steps: Place the device in a suitable position in the chicken house, and adjust the volume of the weighing space; Put feed in the trough; When any broiler enters the weighing space, the head of the broiler passes through the movable end of the movable rail assembly, and then the broiler eats in the trough; after the weighing part obtains the weight of the broiler, the movable end of the movable rail assembly moves to drive the broiler away; The data transmission processing mechanism collects, processes and transmits the weight data of the broiler.

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