CN112903073A - Sheep dynamic weighing mechanical device - Google Patents
Sheep dynamic weighing mechanical device Download PDFInfo
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- CN112903073A CN112903073A CN202110157018.2A CN202110157018A CN112903073A CN 112903073 A CN112903073 A CN 112903073A CN 202110157018 A CN202110157018 A CN 202110157018A CN 112903073 A CN112903073 A CN 112903073A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/08—Apparatus for or methods of weighing material of special form or property for weighing livestock
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- G—PHYSICS
- G01—MEASURING; TESTING
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- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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Abstract
The invention relates to a mechanical device for realizing dynamic weighing of sheep by utilizing automatic control, in particular to a livestock raising process, and belongs to the technical field of mechanical electronics. The device enables the weighing and collecting rack and the sheepfold fence to be connected through the inlet fence and the outlet fence to form a closed channel, and weighing is completed in one sheepfold; place sheep and only drive mechanism between sheepfold fence and the collection rack of weighing, drive the fence and remove and make the sheep only remove from a side to the opposite side, the sheep only gets into the collection rack of weighing through narrow passageway relatively. The acquisition system reads sheep ear tag information through a card reader, acquires sheep weight data through a weighing transmitter, processes the data to obtain the weight of the sheep and sends the weight of the sheep and other related data to the cloud for storage through a wireless network. The stress reaction of the sheep is reduced to a great extent, the growth condition of the sheep is improved, the working efficiency of a feeding farm is improved, the feeding scheme can be timely adjusted according to the weight change in the growth period, the feed-meat ratio is improved, and the economic benefit of feeding is improved.
Description
Technical Field
The invention relates to a mechanical device for realizing dynamic weighing of sheep by utilizing automatic control, in particular to a livestock raising process, and belongs to the technical field of mechanical electronics.
Background
The mutton has tender meat, delicious taste, low fat and cholesterol content, and rich nutrition. With the development of economy and the increase of income of the masses, the living standard is continuously improved, the nutrition, rationalization and scientific adjustment trend of the dietary structure of residents is obvious, and mutton gradually moves to the dining table of common residents. The mutton sheep industry in China reaches a certain scale after long-term development, but small-scale decentralized breeding is mainly used at the present stage. Further developing the large-scale cultivation of animal husbandry, the scientific management level, the disease prevention and control capability, the pollution treatment of farms and other measures have higher requirements, and advanced facility cultivation equipment is needed. Therefore, highly automated farming installations have become a necessary trend in the development of farming. At present, intelligent and automatic equipment is used in many large and medium-sized farms abroad, and domestic breeding equipment is not scientific and comprehensive enough.
Aiming at the problems of extensive breeding environment of mutton sheep and low resource utilization rate of breeding waste in China, new materials, new processes and colony house design are combined, facility automation technologies such as a large-scale sheep house feeding facility, a disinfection and excrement clearing device, an environment monitoring device, the Internet of things and intelligent management are integrated, a practical sheep house demonstration sample plate applicable to different scales and breeding modes is established, demonstration and popularization of standardized sheep house facilities are developed, Nanjing agriculture university undertakes the national key research and development item 'integration and demonstration of goat large-scale efficient and safe breeding key technology', research on 'standardized sheep house design, environment control and facility engineering technology integration and application' is developed according to project requirements, and automation of supporting equipment and facilities of a sheep farm is promoted and realized.
Traditionally, in a common sheep farm or a test base, the weight of sheep (lambs) is usually collected by people holding the sheep in arms and standing on a weighing platform for weighing, then the weight of people is removed or several people bind the sheep to make the sheep immobile, and then the sheep are weighed again, so that the weighing modes are low in efficiency, stress reaction to the sheep is caused, continuous ischemia of gastrointestinal tracts of the sheep, intestinal flora disorder and digestive dysfunction of the sheep are caused, the feed intake is reduced, the synthesis of body proteins is reduced, the feed conversion rate is reduced, and the health and the growth of the sheep are influenced. And after weighing is finished, the weight information of the sheep needs to be sorted and classified manually, so that the improvement of the automation and intelligence level of the feeding mechanical equipment is the current development trend.
According to the requirements of key research and development projects, a facility capable of realizing dynamic automatic weighing of sheep is planned to be developed, relevant research is inquired, and an invention patent filed by civil middle-school sheep industry Limited company is: an automatic sheep weighing device (CN201410780113.8), which fails to solve the following problems:
1. the facility is arranged at the sheep hurdle outlet, no sheep driving action is provided, the sheep actively enters the weighing platform with great difficulty, and the sheep is crowded and cannot normally pass through the weighing platform by adopting feeding and suction.
2. The invention still adopts a static weighing method, the sheep are restrained by the fixed support guard rail at one side of the base and the movable support guard rail at the other side after entering the weighing platform, the structure has no automatic adjusting mechanism to meet the requirements of different individual sheep, and the stress reaction of the sheep can be caused in the restraining process.
3 the invention realizes the state that the sheep is not held by people or weighed after being bound, but other information collection is completed manually.
Disclosure of Invention
The invention aims to provide a mechanical device based on a sheep driving mechanism and automatic sheep weighing.
In order to solve the problems, the sheep driving mechanism and the automatic sheep weighing mechanical device are realized by the following technical scheme:
the invention relates to a sheep dynamic weighing mechanical device, which comprises: the sheep driving movement mechanism part and the weighing and collecting rack part.
The sheep driving movement mechanism part comprises a moving base, a combined vertical guide rail, a left lifting frame, a right lifting frame, a driving fence lifting winch, a combined pulley, a linear guide rail, a left traction sliding block fixing frame, a right traction sliding block fixing frame, a fixing frame and a driving fence connecting pin, a driving fence and a driving fence left and right traction winch; the weighing and collecting rack part comprises a sheep entrance passage fence, an entrance passage light curtain sensor, an entrance door driving motor, a motor driving belt, an entrance door transmission gear, an entrance door driving belt, an entrance door shaft rotation driving belt, a torque limiter, a door shaft connecting disc, an entrance door shaft, an entrance door frame, a door opening and closing position travel switch, an entrance passage fence connecting weighing platform supporting plate, a weighing platform passage fence, a weighing sensor supporting plate, a sheep exit passage fence, an RFID card reader and a card reader support upright post.
The device enables the weighing and collecting rack to be connected with two side doors of a sheepfold fence to form a closed channel through a sheep entrance and exit fence channel, so that sheep can be weighed in one sheepfold; a sheep driving movement mechanism is arranged between a sheepfold fence and a weighing and collecting rack, the driving fence is lifted by a left lifting frame and a right lifting frame to enable the sheep to cross the height of the sheepfold fence before weighing, the driving fence is placed in the sheepfold after rotating for 90 degrees, a left traction winch and a right traction winch of the driving fence drag the driving fence to move slowly to force the sheep to move to one side, the sheep entering a passage fence through a door on one side of the sheepfold, the interval of light curtain sensors on both sides of the passage fence and a relatively narrow passage ensure that only one sheep can pass through, an entrance door frame on the entrance side of a platform passageway fence is opened, an exit door frame on the exit side of a platform passageway fence is closed, when the tail of the sheep passes through the light curtain sensors, the entrance door frame on the entrance side is closed, the door frame is pressed to the body of the sheep (torque is adjusted by a torque limiter to ensure that the sheep is not, the front door and the rear door of a sheep enter a platform passageway fence, the front door and the rear door of the sheep are closed, a weighing acquisition control system reads sheep ear tag electronic information through an RFID card reader to acquire sheep identity, a transmitter connected with a weighing sensor starts to acquire sheep weight data through RS485 communication, the data are processed to obtain the weight data of the current sheep, the weighing acquisition control system sends the sheep weight related data to a cloud database through a wireless network for storage, an outlet door frame at the outlet side of the platform passageway fence is opened after weighing is completed regularly, the sheep leaves the platform passageway fence, the outlet door frame at the outlet side of the platform passageway fence is started to be closed when a sheep tail passes through an outlet light curtain sensor, the sheep which is weighed returns to a sheepfold through an outlet fence, the inlet door frame at the inlet side of the platform passageway fence is opened while the outlet side of the platform passageway fence is closed, and the next weighing of the sheep is started later, the entire weighing process for each sheep was set to 20 seconds and completed.
The invention has the beneficial effects that: according to the sheep pen, the driving fence mechanism is adopted to drive the sheep in a single pen to enter the weighing platform actively, so that direct driving by people and obstinate resistance of the sheep are avoided, the stress response of the sheep is reduced to a great extent, and the growth conditions of the sheep are improved; the sheep identity and the dynamic weight of the sheep are automatically read by the acquisition system, the weight of the sheep is obtained through data processing, and the sheep weight and the communication with the remote server database are stored, so that necessary conditions are provided for intelligent management of a sheep farm, the working efficiency of the feeding farm is improved, the labor intensity of a feeder is reduced, more importantly, the feeding scheme can be timely adjusted according to the change of the weight in the growing period, the feed conversion ratio is improved, and the feeding economic benefit of the sheep farm is improved.
Drawings
FIG. 1 is a schematic view of the operation process of the sheep dynamic weighing mechanical device;
FIG. 2 is a front view of the sheep driving exercise mechanism in a non-operative state;
fig. 3 is a top view of the sheep driving movement mechanism in a non-working state;
fig. 4 is a left side view of the sheep driving-only motion mechanism in a non-operating state;
FIG. 5 is an enlarged view of a portion I of the top view of FIG. 3;
fig. 6 is a front view of the sheep driving-only motion mechanism in operation;
fig. 7 is a top view of the sheep driving movement mechanism in an operating state;
fig. 8 is a left side view of the sheep driving movement mechanism in operation;
fig. 9 is a schematic view of the lifting operation of the driving fence of the sheep driving movement mechanism;
FIG. 10 is a schematic view of the operation of the sheep driving mechanism driving fence driving;
FIG. 11 is a front view of a weigh acquisition stand;
FIG. 12 is a top view of a weight collection gantry;
fig. 13 is a left side view of the weight collection stand.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of the operation process of the sheep dynamic weighing mechanical device; FIG. 2 is a front view of the sheep driving exercise mechanism in a non-operative state; fig. 3 is a top view of the sheep driving movement mechanism in a non-working state; fig. 4 is a left side view of the sheep driving-only motion mechanism in a non-operating state; FIG. 5 is an enlarged view of a portion I of the top view of FIG. 3; fig. 6 is a front view of the sheep driving-only motion mechanism in operation; fig. 7 is a top view of the sheep driving movement mechanism in an operating state; fig. 8 is a left side view of the sheep driving movement mechanism in operation; fig. 9 is a schematic view of the lifting operation of the driving fence of the sheep driving movement mechanism; FIG. 10 is a schematic view of the operation of the sheep driving mechanism driving fence driving; FIG. 11 is a front view of a weigh acquisition stand; FIG. 12 is a top view of a weight collection gantry; fig. 13 is a left side view of the weight collection stand.
As shown in fig. 1, a working process schematic diagram of the sheep dynamic weighing mechanical device illustrates the position relationship between the sheep driving device and the weighing and collecting rack and the sheepfold fence.
As shown in fig. 2 to 8, the sheep driving movement mechanism of the sheep dynamic weighing mechanical device of the invention comprises: the fence driving device comprises a cross beam frame 1, a linear guide rail 2, a fence driving fixing pin 3, a left and right traction sliding block fixing frame 4, a moving base 5, a combined vertical guide rail 6, a left lifting frame 7, a fence driving rotating pin 8, a diagonal pulling upright post 9, a fence driving lifting winch 10, a fence driving left and right traction winch 11, a right lifting frame 12, a fence driving 13, a traction sliding block 14 and a lifting frame guide pulley 15.
As shown in fig. 11 to 13, the weighing and collecting platform of the dynamic sheep weighing machine of the present invention comprises: the sheep entrance passage way fence comprises a sheep entrance passage way fence 1, a door shaft connecting disc 2, a sheep entrance passage way fence connecting weighing platform supporting plate 3, an entrance door shaft 4, a torque limiter 5, a weighing sensor 6, a weighing sensor supporting plate 7, a weighing platform passageway fence 8, an RFID card reader 9, a sheep exit passage way fence connecting weighing platform supporting plate 10, a card reader support upright post 11, a sheep exit passage way fence 12, an entrance and exit double-door driving belt 13, an entrance and exit double-door transmission gear 14, a motor driving belt 15, an entrance passage light curtain sensor 16, an entrance door driving motor 17, a sheep entrance door frame 18, a sheep exit door frame 19, an exit door driving motor 20 and an exit passage light curtain sensor 21.
As shown in fig. 1, the sheep driving device is moved to the two sides of the front door and the rear door of the sheepfold fence and is fixed properly, the weighing platform collecting rack is moved outside the sheep driving device, and the sheep entrance and exit fence, the weighing platform collecting rack and the front door and the rear door of the sheepfold are fixed by the prefabricated hooks to form a closed channel.
As shown in fig. 2 to 10, the front end of the driving fence 13 is pre-tensioned to a state that the universal wheels at the lower end thereof are approximately separated from the ground by the cable-stayed steel wire ropes fixed on the cable-stayed upright posts 9 in fig. 2, so as to ensure that the driving fence is in a horizontal state as a whole when rising (the front end and the rear end of the driving fence are kept horizontal); the cross beam frame 1 is fixedly connected with the left lifting frame 7 and the right lifting frame 12 to realize lifting of the cross beam frame, the left lifting frame 7, the right lifting frame 12 and the combined vertical guide rail 6 realize limiting in the front direction, the rear direction and the left direction and the right direction through a lifting frame guide pulley 15 shown in figure 5, the combined vertical guide rail 6 can improve guiding straightness (increase rigidity) and reduce the weight of a sheep driving movement mechanism by using 4 round pipes (shown in figure 5), and the cross beam frame 1 is further fixedly provided with a linear guide rail 2; one side of the left and right traction slide block fixing frame 4 is fixed with 2 traction slide blocks 14, and one side is connected with the rear end of the driving fence 13 through a driving fence rotating pin 8, so that the driving fence 13 is positioned at the position shown in fig. 2 when lifted; the traction sliding block 14 is assembled with the linear guide rail 2 in a sliding manner, so that the traction sliding block can slide along the guide rail.
The driving fence lifting winch 10 is connected with a steel wire rope shown in a figure 9, a left lifting frame lifting steel wire rope is wound on the roller from the rear lower part of the driving fence lifting winch roller through a turning pulley, a right lifting frame lifting steel wire rope is wound on the roller from the front upper part of the driving fence lifting winch roller through the turning pulley, so that the winch rotates forwards and simultaneously retracts two steel wire ropes, and the left lifting frame and the right lifting frame ascend; the winch reversely rotates to release the steel wire rope, and the left lifting frame and the right lifting frame descend. One end of a left lifting frame and a right lifting frame synchronous steel wire rope 1 is fixed at the lower end of a right lifting frame, and the other end of the left lifting frame synchronous steel wire rope is fixed at the upper end of a left lifting frame through a turning pulley; one end of the left and right lifting frame synchronous steel wire rope 2 is fixed at the lower end of the left lifting frame, and the other end is fixed at the upper end of the right lifting frame through a turning pulley; the left lifting frame and the right lifting frame can be further ensured to be lifted synchronously by arranging the synchronous steel wire rope, and the clamping stagnation phenomenon in the lifting process is prevented.
The driving fence is arranged at the position shown in figure 2, the driving fence lifting winch 10 is started to rotate forwards, the roller is wound with left and right lifting frame lifting steel wire ropes, the left lifting frame 7 and the right lifting frame 12 synchronously ascend, the cross beam frame 1 fixedly connected with the left and right lifting frames drives the left and right migration sliding block fixing frame 4 and the driving fence 13 to ascend, and the driving fence lifting winch 10 stops rotating when the lower end of the driving fence 13 can cross the height of the sheepfold fence; the fence 13 of driving rotates 90 degrees when picture 7 positions around driving fence rotating pin 8, starts to drive fence lift hoist engine 10 and reverses, and is reverse opposite with aforementioned, and driving fence 13 descends to its front end universal wheel and sheepfold ground and contacts, stops driving the rotation of fence lift hoist engine 10, uses to drive fence fixed pin 3 and will drive fence 13 and draw the left pinhole of the fixed frame 4 of slider about with and be connected for driving fence 13 can not rotate around driving fence rotating pin 8.
The driving fence left and right traction windlass 11 is connected according to a steel wire rope shown in figure 10, one end of a left traction steel wire rope is fixed on the left side of a left and right traction sliding block fixing frame, the other end of the left traction steel wire rope is wound on a roller from the upper back part of a left and right traction windlass roller of the driving fence through a turning pulley, one end of a right traction steel wire rope is fixed on the right side of the left and right traction sliding block fixing frame, the other end of the right traction steel wire rope is wound on the roller from the lower front part of the left and right traction windlass roller of the driving fence through the turning pulley, so that the steel wire rope is retracted from one side.
As shown in fig. 6 to 8, the driving fence 13 is dragged by the left and right traction windlasses 11 of the driving fence to slowly move from one side of the sheepfold fence to the other side, the sheep in the sheepfold fence continuously and automatically enter the weighing inlet in sequence along with the reduction of the space, after all the sheep are weighed, the driving fence returns to the starting position, the driving fence lifting windlasses 10 are started to lift the driving fence and return to the positions shown in fig. 2-4, and the weighing of the single sheepfold sheep is completed.
As shown in fig. 11 to 13, the sheep entering the passageway fence connecting weighing platform support plate 3 and the sheep leaving the passageway fence connecting weighing platform support plate 10 suspend the weighing platform passageway fence 8 in the air through the weighing sensor support plate 7 to separate from the universal wheel support, so that the weighing sensor 6 is in a working state. When the sheep enters the sheep entrance fence 1 under the driving, starting a weighing control system to initialize the entrance door frame position, closing the sheep to leave the door frame 19 to the exit door closing travel switch position, and opening the sheep entrance door frame 18 to the entrance door opening travel switch position; sheep only enters the platform passageway fence from the sheep only entering the passageway fence 1, when the tail of the sheep passes through the entrance passageway light curtain sensor 16, the descending edge of the photoelectric switch triggers the entrance door driving motor 17 to rotate positively, the motor driving belt 15 drives the pair of meshed entrance and exit double-door transmission gears 14 to rotate in two directions, the power is transmitted to the torque limiter 5, the door shaft connecting disc 2 and the entrance and exit door shaft 4 through the entrance and exit double-door driving belt 13, the sheep only enters the door frame 18 to start to close the door, the bilateral door frame is pressed against the sheep body immediately in the door closing process, the working torque of the torque limiter 5 is adjusted to ensure that the door frame is extruded on the sheep body but cannot crush the sheep, and the aim is to prevent the later sheep tail from entering the platform passageway fence; when the whole body of a sheep enters the platform passageway fence, the sheep enters the door frame 18 to the position of the entrance door closing travel switch, the RFID card reader 9 arranged on the card reader upright post 11 is triggered to read sheep ear tag information, weighing sampling and data analysis processing are carried out according to preset sampling frequency and time, the weight of the sheep is displayed, and data are uploaded through a wireless network and stored in a remote server database.
After the preset weighing time is up, data acquisition is finished, the leaving door driving motor 20 is started to rotate reversely, a pair of meshed in-out double-door transmission gears 14 are driven by a motor driving belt 15 to rotate in two directions, the power is transmitted to a door shaft connecting plate 2 and an in-out door shaft 4 by an in-out double-door driving belt 13, the sheep only leaves a door frame 19 and is opened to an outlet door opening travel switch position, when the tail of a sheep passes through the exit channel light curtain sensor 21, the falling edge of the photoelectric switch triggers the exit door driving motor 20 to rotate forwards and the entrance door driving motor 17 to rotate backwards, so that the sheep only leaves the door frame 19 and is closed to the exit door closing travel switch position, the sheep only enters the door frame 18 and is opened to the entrance door opening travel switch position, and at the moment, the sheep waiting for entering the channel rail 1 can only enter the platform passageway rail 8 to start new weighing collection.
The present invention has been disclosed in terms of the preferred embodiment, but is not intended to be limited to the embodiment, and all technical solutions obtained by substituting or converting equivalents thereof fall within the scope of the present invention.
Claims (1)
1. The utility model provides a sheep dynamic weighing mechanical device which characterized in that: the method mainly comprises the following steps: the sheep driving movement mechanism part and the weighing and collecting rack part are arranged on the sheep body; the sheep driving movement mechanism part comprises a moving base, a combined vertical guide rail, a left lifting frame, a right lifting frame, a driving fence lifting winch, a combined pulley, a horizontal guide rail, a left traction sliding block fixing frame, a right traction sliding block fixing frame, a fixing frame and a driving fence connecting pin, a driving fence and a driving fence left and right traction winch; the weighing and collecting rack part comprises a sheep entrance passage fence, an entrance passage light curtain sensor, an entrance door driving motor, a motor driving belt, an entrance door transmission gear, an entrance door driving belt, a torque limiter, a door shaft connecting disc, an entrance door shaft, a sheep entrance door frame, a door opening and closing position travel switch, a weighing platform supporting plate, a weighing platform passageway fence, a weighing sensor supporting plate, a sheep exit passage fence, a card reader support upright post and an RFID card reader; the device enables the weighing and collecting rack to be connected with two side doors of a sheepfold fence to form a closed channel through a sheep entrance and exit fence channel, so that sheep can be weighed in a sheepfold in a circulating manner; a sheep driving movement mechanism is arranged between a sheepfold fence and a weighing and collecting rack, the driving fence is lifted by a left lifting frame and a right lifting frame to enable the sheep to cross the height of the sheepfold fence before weighing, the driving fence is placed in the sheepfold after rotating for 90 degrees, a left traction winch and a right traction winch of the driving fence drag the driving fence to move slowly to force the sheep to move to one side and pass through a door at one side of the sheepfold to enter a passageway fence of the weighing and collecting rack, the distance between light curtain sensors at two sides of the passageway fence and a relatively narrow passageway ensure that only one sheep can pass through, an entrance door frame at the entrance side of the platform passageway fence is opened, an exit door frame at the exit side of the platform passageway fence is closed, when the tail of the sheep passes through the light curtain sensors, the entrance door frame is squeezed to the body of the sheep (the pressure is adjusted by a torque limiter to ensure that the sheep is not injured) to, the front door and the rear door of a sheep enter a platform passageway fence, the front door and the rear door of the sheep are closed, a weighing acquisition control system reads sheep ear tag electronic information through an RFID card reader to acquire sheep identity, a transmitter connected with a weighing sensor starts to acquire sheep weight data through RS485 communication, the data are processed to obtain the weight data of the current sheep, the weighing acquisition system sends the sheep weight related data to a cloud server database through a wireless network for storage, an outlet door frame at the outlet side of the platform passageway fence is opened after weighing is completed regularly, the sheep leaves the platform passageway fence, the outlet door frame at the outlet side of the platform passageway fence is started to be closed when the sheep tail passes through an outlet light curtain sensor, the sheep which is weighed returns to a sheepfold through an outlet fence, the inlet door frame at the inlet side of the platform passageway fence is opened while the outlet side of the platform passageway fence is closed, and the next weighing of the sheep is started later, the entire weighing process for each sheep was set to 20 seconds and completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110157018.2A CN112903073A (en) | 2021-02-04 | 2021-02-04 | Sheep dynamic weighing mechanical device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110157018.2A CN112903073A (en) | 2021-02-04 | 2021-02-04 | Sheep dynamic weighing mechanical device |
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| CN112903073A true CN112903073A (en) | 2021-06-04 |
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| CN202110157018.2A Pending CN112903073A (en) | 2021-02-04 | 2021-02-04 | Sheep dynamic weighing mechanical device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116058302A (en) * | 2023-03-15 | 2023-05-05 | 江苏省家禽科学研究所 | Automatic weighing broiler chicken raising cage |
-
2021
- 2021-02-04 CN CN202110157018.2A patent/CN112903073A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116058302A (en) * | 2023-03-15 | 2023-05-05 | 江苏省家禽科学研究所 | Automatic weighing broiler chicken raising cage |
| CN116058302B (en) * | 2023-03-15 | 2023-08-29 | 江苏省家禽科学研究所 | Automatic weighing broiler chicken raising cage |
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