CN109006575A - A kind of egg hatching frame - Google Patents
A kind of egg hatching frame Download PDFInfo
- Publication number
- CN109006575A CN109006575A CN201811207677.7A CN201811207677A CN109006575A CN 109006575 A CN109006575 A CN 109006575A CN 201811207677 A CN201811207677 A CN 201811207677A CN 109006575 A CN109006575 A CN 109006575A
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- CN
- China
- Prior art keywords
- connecting rod
- pin
- crank
- egg
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000012447 hatching Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 230000007306 turnover Effects 0.000 claims abstract description 21
- 230000003028 elevating effect Effects 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000007514 turning Methods 0.000 abstract description 7
- 230000033001 locomotion Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 239000011295 pitch Substances 0.000 description 5
- 210000001161 mammalian embryo Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000998 shell membrane Anatomy 0.000 description 2
- 241000287828 Gallus gallus Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K41/00—Incubators for poultry
- A01K41/06—Egg-turning appliances for incubators
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K41/00—Incubators for poultry
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Meat, Egg Or Seafood Products (AREA)
- Packaging Frangible Articles (AREA)
Abstract
The present invention provides a kind of egg hatching framves, belong to egg hatching technical field.Its technical solution are as follows: a kind of egg hatching frame, including elevating mechanism (1), the turnover mechanism (2), transmission mechanism (3) and the egg tray C(4 that are arranged on elevating mechanism (1)).The invention has the benefit that the present invention automatically overturns the egg hatched in incubator, without human intervention, egg-turning is high-efficient, can improve the hatching rate of egg.
Description
Technical field
The present invention relates to egg hatching technical field more particularly to a kind of egg hatching framves.
Background technique
When hatching, embryo and shell membrane adhesion are avoided, is heated evenly each position of embryo, supplied fresh air facilitates embryo
Tire movement, keeps the position of foetus normal.Egg-turning or egg-turning be not abnormal for a long time, can reduce hatching rate, and embryo is sticked on shell membrane, adhesion
Part occur deformity, as limb lack or deformity.It is reported that the entire incubation period, egg-turning, hatching rate 29% did not turned over for first 7 days
Egg does not turn over thereafter, hatching rate 79%, and preceding 14 days egg-turnings do not turn over thereafter, hatching rate 95%.
Hatch machine in reality can not achieve the voluntarily overturning in hatching process, generally require manually to carry out manual overturning,
Considerably increase the difficulty and cost of cultivation.
Summary of the invention
The hatching frame of the purpose of the present invention is to provide a kind of in incubator automatic egg turning.
The present invention is realized by following measure: a kind of egg hatching frame, which is characterized in that including elevating mechanism, set
Set turnover mechanism, transmission mechanism and egg tray C on the elevating mechanism；
The elevating mechanism includes station, and organic frame is arranged in the station bottom, is provided with crankshaft in the rack, described
Connecting rod, described connecting rod one end and the crank pin connection are provided on the crank-pin of crankshaft, the other end passes through on the station
Through-hole be provided with top plate, described crankshaft one end is provided with motor A, and the motor A is connect with the crankshaft by shaft coupling；
The crank-pin includes being provided with connecting rod A, the company on crank-pin A, crank-pin B and crank-pin C, the crank-pin A
The one end bar A is connect with the crank-pin A, and the through-hole that the other end passes through the station is provided with top plate A, on the crank-pin B
It is provided with connecting rod B, the one end the connecting rod B is connect with the crank-pin B, and the through-hole that the other end passes through on the station is provided with
It is provided with connecting rod C on top plate B, the crank-pin C, the one end the connecting rod C is connect with the crank-pin C, and the other end passes through described
Through-hole on station is provided with top plate C；
It is provided with the turnover mechanism on the top plate A, the transmission mechanism and the top plate C are provided on the top plate B
On be provided with the egg tray C.
Further, the turnover mechanism includes pedestal, and the pedestal includes bottom plate and is vertically arranged with the bottom plate
Backboard, hang plate is set on the bottom plate, described hang plate one end and the bottom plate are hinged, and the other end is provided with jack-up machine
Structure.
Further, the jacking mechanism includes sliding slot, and lead screw is provided in the sliding slot, is provided with cunning on the lead screw
Block is provided with pull rod on the sliding block, and described pull rod one end is connected with the slide block, and the other end and the hang plate bottom connect
It connects, described lead screw one end is connected with motor B.
Further, it is provided on the hang plate of the jacking mechanism side and is provided with support shaft, the support shaft
On be provided with position-limited wheel, described position-limited wheel one end is provided with flange, and pilot hole is provided on the backboard, is set in the pilot hole
It is equipped with the flange.
Further, egg tray A is provided on the hang plate.
Further, the transmission mechanism includes being provided with transmission lever on support base A and support base B, the support base A,
Described transmission lever one end is provided with circular hole, and turntable is provided in the circular hole, and the support base A is provided through on the turntable
Eccentric shaft, described eccentric shaft one end is provided with motor C, and the other end of the transmission lever is connect with rocking handle, the rocking handle setting
On the support base B, the other end of the rocking handle passes through the support base B and is connected with connecting rod A, and the connecting rod A's is another
One end is provided with connecting rod B, and the one end the connecting rod B is connect with the connecting rod A, and the other end is connect with connecting rod C, the company
The other end of extension bar C and the support base B are hinged, and fixed link is provided on the connecting rod B, is provided with and picks up in the fixed link
Part is picked up, the pickup part bottom is provided with rotating mechanism.
Further, the rotating mechanism includes substrate, is provided on the substrate and actively pitches, described actively to pitch on circumference
It has been uniformly arranged arc wing, shift fork has been provided between the adjacent arc wing, straight pin, the base is provided on the shift fork
It is additionally provided on plate from moving fork, it is described to be provided with principal axis A from moving fork, it is described to be evenly distributed in arc plate from moving fork, it is adjacent
Guide groove is formed between the arc plate, the straight pin is provided in the guide groove, and the principal axis A passes through the edge of substrate
Portion is provided with egg tray B, and axis hole is provided on the substrate, and the middle position of actively pitching is provided in corresponding with the axis hole
Heart hole is provided with shaft in the centre bore, and the shaft sequentially passes through the centre bore, axis hole, and end is set by shaft coupling
It is equipped with motor D.
Further, the bottom the egg tray B is provided with supporting plate A.
Beneficial effects of the present invention: turnover mechanism and transmission mechanism are arranged in the mechanism of crankshaft-link rod the present invention, adopt
It is the device for converting rotary motion and straight reciprocating motion with crankshaft connecting rod system, the present invention is to transport the rotation of motor
Turn is melted into the up and down motion form of top plate, top plate A and top plate B since reversed fortune is presented in the effect of crankpin A and crankpin B
It is dynamic, cause turnover mechanism and transmission mechanism that counter motion is presented, it can it is rolled to egg on transmission mechanism by turnover mechanism,
It can also be rolled on turnover device by transmission mechanism.The overturning to egg is realized during rolling.It is adopted in turnover mechanism
The elevating movement of pull rod is driven with the mode that lead screw transmits, lead screw passing movement is steady, and transmission efficiency is high, in high precision and same
Step property is good, can smoothly lift one end of hang plate, prevent egg from colliding during lifting, and reduces and produces because egg collides
Raw impact force causes to damage to egg.Since turnover mechanism is at heeling condition, then due to the effect of gravitional force, the top
The speed that egg is rolled to lower end is maximum, and after egg is rolled to turnover mechanism bottom, due to inertia, egg is in pick-up mechanism
On do plane motion, the egg of turnover mechanism the top tumbles in order to prevent, needs egg tray B in transmission mechanism toward far from egg tray
Movement slightly is done in the direction of A, and the rotating mechanism in pick-up mechanism may be implemented egg tray B and make rotating motion, wherein rotating mechanism
Using intermittent cam transmission mechanism, cam drive transmission in gap is more steady, and indexing accuracy is high, and transmitting torque is big, structure
Simply, compact.After egg tray B is rotated to above egg tray C, the supporting plate of the bottom egg tray B is taken down, egg is placed on egg tray C.This
Invention automatically overturns the egg hatched in incubator, and without human intervention, egg-turning is high-efficient, can improve chicken
The hatching rate of egg.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of elevating mechanism.
Fig. 3 is the structural schematic diagram of turnover mechanism.
Fig. 4 is the partial enlarged view at the A of Fig. 3.
Fig. 5 is the structural schematic diagram of pedestal.
Fig. 6 is the structural schematic diagram of transmission mechanism.
Fig. 7 is the structural schematic diagram of rotating mechanism.
Wherein, appended drawing reference are as follows: 1, elevating mechanism；11, station；12, rack；13, crankshaft；131, crank-pin A；132,
Crank-pin B；133, crank-pin C；134, connecting rod A；135, connecting rod B；136, connecting rod C；14, connecting rod；15, top plate；151, top plate A；
152, top plate B；153, top plate C；2, turnover mechanism；21, pedestal；211, bottom plate；212, backboard；213, hang plate；214, it jacks up
Mechanism；2141, sliding slot；2142, lead screw；2143, sliding block；2144, pull rod；215, egg tray A；3, transmission mechanism；31, support base A；
32, support base B；33, transmission lever；34, turntable；35, rocking handle；36, connecting rod A；37, connecting rod B；38, connecting rod C；39, it picks up
Part；310, rotating mechanism；3101, substrate；3102, it actively pitches；3103, from moving fork；3105, egg tray B；4, egg tray C.
Specific embodiment
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
Referring to Fig. 1 to Fig. 7, the present invention is: a kind of egg hatching frame, including elevating mechanism 1, setting are on elevating mechanism 1
Turnover mechanism 2, transmission mechanism 3 and egg tray C4；
Elevating mechanism 1 includes station 11, and 11 bottom of station is arranged organic frame 12, is provided with crankshaft 13, crankshaft in rack 12
Connecting rod 14,14 one end of connecting rod and crank pin connection are provided on 13 crank-pin, the through-hole that the other end passes through on station 11 is set
It is equipped with top plate 15,13 one end of crankshaft is provided with motor A, and motor A is connect with crankshaft 13 by shaft coupling；
Crank-pin includes crank-pin A131, crank-pin B132 and crank-pin C133, is provided with connecting rod A134 on crank-pin A131,
The one end connecting rod A134 is connect with crank-pin A131, and the through-hole that the other end passes through station 11 is provided with top plate A151, crank-pin
Connecting rod B135 is provided on B132, the one end connecting rod B135 is connect with crank-pin B132, and the other end passes through the through-hole on station 11
It is provided with top plate B152, connecting rod C136 is provided on crank-pin C133, the one end connecting rod C136 is connect with crank-pin C133, the other end
Through-hole on station 11 is provided with top plate C153；
It is provided with turnover mechanism 2 on top plate A151, is provided on transmission mechanism 3 and top plate C153 and is provided on top plate B152
Egg tray C4.
Turnover mechanism 2 include pedestal 21, pedestal 21 include bottom plate 211 and with the vertically disposed backboard 212 of bottom plate 211,
Hang plate 213 is set on bottom plate 211, and 213 one end of hang plate and bottom plate 212 are hinged, and the other end is provided with jacking mechanism 214.
Jacking mechanism 214 includes sliding slot 2141, is provided with lead screw 2142 in sliding slot 2141, is provided with sliding block on lead screw 2142
2143, pull rod 2144 is provided on sliding block 2143, and 2144 one end of pull rod is connect with sliding block 2143, the other end and 213 bottom of hang plate
Portion's connection, 2142 one end of lead screw is connected with motor B.
It is provided on the hang plate 213 of 214 side of jacking mechanism and is provided with support shaft, be provided with position-limited wheel in support shaft,
Position-limited wheel one end is provided with flange, and pilot hole is provided on backboard 212, is provided with flange in pilot hole.
Egg tray A215 is provided on hang plate 213.
Transmission mechanism 3 includes support base A31 and support base B32, is provided with transmission lever 33, transmission lever 33 on support base A31
One end is provided with circular hole, and turntable 34 is provided in circular hole, the eccentric shaft of support base A31, eccentric shaft are provided through on turntable 34
One end is provided with motor C, and the other end of transmission lever 33 is connect with rocking handle 35, and rocking handle 35 is arranged on support base B32, rocking handle 35
The other end passes through support base B32 and is connected with connecting rod A36, and the other end of connecting rod A36 is provided with connecting rod B37, connecting rod
The one end B37 is connect with connecting rod A36, and the other end is connect with connecting rod C38, and the other end and support base B32 of connecting rod C38 is cut with scissors
It connects, fixed link is provided on connecting rod B36, be provided in fixed link and pick up part 39, pick up 39 bottom of part and be provided with rotating mechanism
310。
Rotating mechanism 310 includes substrate 3101, is provided on substrate 3101 and actively pitches 3102, is actively pitched on 3102 circumference
Cloth is provided with arc wing, and shift fork is provided between adjacent arc wing, and straight pin is provided on shift fork, is also set up on substrate 3101
Have from moving fork 3103, be provided with principal axis A from moving fork 3103, arc plate is evenly distributed in from moving fork, between adjacent arc plate
Guide groove is formed, straight pin is provided in guide groove, principal axis A passes through 3101 end of substrate and is provided with egg tray B3105, substrate 3101
On be provided with axis hole, actively pitch 3103 middle positions and be provided with centre bore corresponding with axis hole, be provided with shaft in centre bore, turn
Axis sequentially passes through centre bore, axis hole, and end is provided with motor D by shaft coupling.
The bottom egg tray B3105 is provided with supporting plate A.
Technical characteristic of the present invention without description can realize that details are not described herein by or using the prior art, certainly,
The above description is not a limitation of the present invention, and the present invention is also not limited to the example above, the ordinary skill of the art
The variations, modifications, additions or substitutions that personnel are made within the essential scope of the present invention also should belong to protection model of the invention
It encloses.
Claims (8)
1. a kind of egg hatching frame, which is characterized in that including elevating mechanism (1), the overturning being arranged on the elevating mechanism (1)
Mechanism (2), transmission mechanism (3) and egg tray C(4)；
The elevating mechanism (1) includes station (11), and organic frame (12) are arranged in station (11) bottom, the rack
(12) be provided on crankshaft (13), be provided with connecting rod (14) on the crank-pin of the crankshaft (13), described connecting rod (14) one end with
The crank pin connection, the through-hole that the other end passes through on the station (11) are provided with top plate (15), the crankshaft (13) one
End is provided with motor A, and the motor A is connect with the crankshaft (13) by shaft coupling；
The crank-pin includes crank-pin A(131), crank-pin B(132) and crank-pin C(133), the crank-pin A(131)
On be provided with connecting rod A(134), the connecting rod A(134) one end connect with the crank-pin A(131), the other end passes through the behaviour
The through-hole for making platform (11) is provided with top plate A(151), the crank-pin B(132) on be provided with connecting rod B(135), the connecting rod B
(135) one end is connect with the crank-pin B(132), and the through-hole that the other end passes through on the station (11) is provided with top plate B
(152), the crank-pin C(133) on be provided with connecting rod C(136), the connecting rod C(136) one end and the crank-pin C(133)
Connection, the through-hole that the other end passes through on the station (11) are provided with top plate C(153)；
The top plate A(151) on be provided with the turnover mechanism (2), the top plate B(152) on be provided with the transmission mechanism
(3) and the top plate C(153) on be provided with the egg tray C(4).
2. egg hatching frame according to claim 1, which is characterized in that the turnover mechanism (2) includes pedestal (21), institute
State pedestal (21) include bottom plate (211) and with the bottom plate (211) vertically disposed backboard (212), on the bottom plate (211)
It is arranged hang plate (213), hingedly, the other end is provided with jacking mechanism for described hang plate (213) one end and the bottom plate (212)
(214).
3. egg hatching frame according to claim 2, which is characterized in that the jacking mechanism (214) includes sliding slot
(2141), it is provided with lead screw (2142) in the sliding slot (2141), is provided with sliding block (2143) on the lead screw (2142), it is described
Be provided on sliding block (2143) pull rod (2144), described pull rod (2144) one end is connect with the sliding block (2143), the other end with
Hang plate (213) the bottom connection, described lead screw (2142) one end is connected with motor B.
4. egg hatching frame according to claim 3, which is characterized in that be provided with the institute of the jacking mechanism (214) side
It states and is provided with support shaft on hang plate (213), position-limited wheel is provided in the support shaft, described position-limited wheel one end is provided with convex
Edge is provided with pilot hole on the backboard (212), the flange is provided in the pilot hole.
5. egg hatching frame according to claim 4, which is characterized in that be provided with egg tray A on the hang plate (213)
(215).
6. egg hatching frame according to claim 1, which is characterized in that the transmission mechanism (3) includes support base A(31)
It being provided with transmission lever (33) on support base B(32), the support base A(31), described transmission lever (33) one end is provided with circular hole,
Be provided in the circular hole turntable (34), be provided through the support base A(31 on the turntable (34)) eccentric shaft, it is described
Eccentric shaft one end is provided with motor C, and the other end of the transmission lever (33) is connect with rocking handle (35), and rocking handle (35) setting exists
The support base B(32) on, the other end of the rocking handle (35) passes through the support base B(32) it is connected with connecting rod A(36),
The connecting rod A(36) the other end be provided with connecting rod B(37), the connecting rod B(37) one end and the connecting rod A(36)
Connection, the other end connect with connecting rod C(38), the connecting rod C(38) the other end with the support base B(32) hingedly, institute
State connecting rod B(36) on be provided with fixed link, be provided in the fixed link pick up part (39), pickup part (39) bottom is set
It is equipped with rotating mechanism (310).
7. according to claim 6 be used for egg hatching frame, which is characterized in that the rotating mechanism (310) includes substrate
(3101), it is provided with actively fork (3102) on the substrate (3101), has been uniformly arranged arc on described active fork (3102) circumference
Shape wing is provided with shift fork between the adjacent arc wing, is provided with straight pin on the shift fork, on the substrate (3101) also
It is provided with from moving fork (3103), it is described to be provided with principal axis A from moving fork (3103), it is described to be evenly distributed in arc plate from moving fork,
Guide groove is formed between the adjacent arc plate, the straight pin is provided in the guide groove, and the principal axis A passes through described
Substrate (3101) end is provided with egg tray B(3105), axis hole is provided on the substrate (3101), in the active fork (3103)
Meta position, which installs, is equipped with centre bore corresponding with the axis hole, shaft is provided in the centre bore, the shaft sequentially passes through institute
Centre bore, axis hole are stated, end is provided with motor D by shaft coupling.
8. egg hatching frame according to claim 7, which is characterized in that the egg tray B(3105) bottom is provided with supporting plate
A。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811207677.7A CN109006575B (en) | 2018-10-17 | 2018-10-17 | Egg hatching frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811207677.7A CN109006575B (en) | 2018-10-17 | 2018-10-17 | Egg hatching frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109006575A true CN109006575A (en) | 2018-12-18 |
| CN109006575B CN109006575B (en) | 2021-06-22 |
Family
ID=64613139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811207677.7A Expired - Fee Related CN109006575B (en) | 2018-10-17 | 2018-10-17 | Egg hatching frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109006575B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115443922A (en) * | 2022-10-26 | 2022-12-09 | 黔南民族职业技术学院 | Poultry breeding hatching apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2309939A1 (en) * | 1997-11-14 | 1999-05-27 | Rainer Dratt | Incubation method and apparatus for the continuous incubation of eggs ofall species of fowls |
| CN204180712U (en) * | 2014-10-22 | 2015-03-04 | 华中农业大学 | Birds, beasts and eggs grading production line connects egg turning device |
| CN105329647A (en) * | 2015-12-04 | 2016-02-17 | 湘潭大学 | Heavy type lead-acid storage battery turnover device |
| CN206620695U (en) * | 2017-02-16 | 2017-11-10 | 李玉宾 | Goose egg hatching apparatus with egg-turning mechanism |
-
2018
- 2018-10-17 CN CN201811207677.7A patent/CN109006575B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2309939A1 (en) * | 1997-11-14 | 1999-05-27 | Rainer Dratt | Incubation method and apparatus for the continuous incubation of eggs ofall species of fowls |
| CN204180712U (en) * | 2014-10-22 | 2015-03-04 | 华中农业大学 | Birds, beasts and eggs grading production line connects egg turning device |
| CN105329647A (en) * | 2015-12-04 | 2016-02-17 | 湘潭大学 | Heavy type lead-acid storage battery turnover device |
| CN206620695U (en) * | 2017-02-16 | 2017-11-10 | 李玉宾 | Goose egg hatching apparatus with egg-turning mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115443922A (en) * | 2022-10-26 | 2022-12-09 | 黔南民族职业技术学院 | Poultry breeding hatching apparatus |
| CN115443922B (en) * | 2022-10-26 | 2023-09-19 | 黔南民族职业技术学院 | Poultry breeding hatching apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109006575B (en) | 2021-06-22 |
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Granted publication date: 20210622 |