Multi-link egg picking mechanism

Abstract

The application discloses a multi-connecting-rod type egg picking mechanical device. The device comprises a vertically arranged rack plate, a horizontally and parallel arranged first fixed rod, a second fixed rod and a transmission rod connected with a motor which are fixed on the same side of the rack plate, the second fixed rod is located between the first fixed rod and the transmission rod, the horizontal height of the transmission rod is higher than that of the first fixed rod, and the horizontal height of the first fixed rod is higher than that of the second fixed rod; the transmission rod is connected with a motive rod which is parallel to the rack plate, the motive rod is connected with a driven rod assembly, and the rotation of the motive rod drives the movement of the driven rod assembly; the bottom end of the driven rod assembly is fixedly connected with a rotating support; the rotating support is provided with a grabbing disc carrying a plurality of claws, and the bottom end of each claw on the grabbing disc is provided with an air pump suction disc for sucking and picking poultry eggs. The device not only improves the egg picking efficiency, saves time and labor, but also reduces the damage rate of poultry eggs.

Description

Technical Field

[0001] The present invention relates to the technical field of automated animal husbandry equipment, and in particular to a multi-link egg picking mechanical device. Background Art

[0002] Most domestic egg-laying poultry farming is done on the ground, in harsh conditions. If eggs are not promptly recycled, they can become contaminated and damaged to varying degrees. Once eggs are damaged, micro-cracks develop on the surface, allowing bacteria to enter and grow inside the eggs through the cracks, causing contamination. Therefore, timely egg recycling is essential to ensure their integrity.

[0003] The following problems exist in the prior art for inspecting and picking up poultry eggs:

[0004] First, manual inspection and picking would consume a lot of labor and be inefficient.

[0005] Second, if an automated egg picking machine is used, the damage rate of the eggs caught is high, and the automated egg picking machine has a complex structure and is inconvenient to maintain and service. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention proposes a multi-link egg picking mechanical device, which not only has high work efficiency and saves time and effort, but also prevents poultry eggs from being damaged easily. The device is easy to maintain and has a long service life.

[0007] To achieve the above objectives, the present invention provides a multi-link egg-picking mechanical device, comprising a vertically arranged frame plate. The device is characterized in that: a first fixing rod, a second fixing rod, and a transmission rod connected to a motor are fixedly disposed on the same side of the frame plate in a horizontal and parallel manner. The second fixing rod is located between the first fixing rod and the transmission rod. The transmission rod has a height greater than that of the first fixing rod, and the first fixing rod has a height greater than that of the second fixing rod.

[0008] The extended end of the transmission rod is connected to a driving rod arranged parallel to the frame plate, and the driving rod is connected to a driven rod assembly, and the rotation of the driving rod drives the driven rod assembly to move along a predetermined trajectory;

[0009] The driven rod assembly includes a first driven rod rotatably connected to the extended end of the driving rod by a bolt, and the first driven rod is arranged parallel to the frame plate and located outside the driving rod;

[0010] The extending end of the first driven rod is rotatably connected to a second driven rod and a third driven rod arranged parallel to the frame plate through bolts, and the third driven rod is located inside the first driven rod, and the second driven rod is located outside the first driven rod;

[0011] The third driven rod extension end is rotatably connected with the fourth driven rod, the fifth driven rod and the sixth driven rod arranged in parallel with the rack plate by bolts respectively, and the fourth driven rod is located inside the third driven rod, the fourth driven rod extension end is rotatably connected with the first fixed rod extension end, the fifth driven rod is located outside the third driven rod, and the sixth driven rod is located outside the fifth driven rod;

[0012] The fifth driven rod extension end is rotatably connected with the seventh driven rod and the ninth driven rod arranged in parallel with the rack plate by bolts respectively, and the seventh driven rod is located outside the fifth driven rod, and the ninth driven rod is located outside the fifth driven rod;

[0013] The second driven rod extension end is rotatably connected with the second fixed rod extension end, and the second driven rod extension end is rotatably connected with the seventh driven rod extension end and the eighth driven rod respectively, the seventh driven rod is located outside the second driven rod, and the eighth driven rod is located outside the seventh driven rod;

[0014] The sixth driven rod extension end is rotatably connected with the eighth driven rod extension end and the tenth driven rod arranged in parallel with the rack plate by bolts respectively, and the eighth driven rod is located outside the sixth driven rod, and the tenth driven rod is located outside the eighth driven rod;

[0015] The ninth driven rod extension end and the tenth driven rod extension end are fixedly connected with the rotating support arranged vertically downward by bolts; the rotating support bottom end is provided with a grab disc carrying a plurality of grab claws, and the grab claw bottom end on the grab disc is provided with a gas pump suction disc for sucking and picking poultry eggs, so that the gas pump suction disc is driven to move up and down, left and right to a clear and repeatable positioning point when the driven rod assembly moves repeatedly according to the predetermined track.

[0016] Further, the horizontal height difference between the transmission rod and the first fixed rod is 25-35mm, and the horizontal height difference between the first fixed rod and the second fixed rod is 25-35mm.

[0017] Further, the transmission rod and the original driving rod are connected by a key.

[0018] Further, the fourth driven rod extension end and the first fixed rod extension end are rotatably connected by a bearing, and the second driven rod extension end and the second fixed rod extension end are rotatably connected by a bearing.

[0019] Further, the second driven rod extension end is rotatably connected with the seventh driven rod extension end and the eighth driven rod by a coupling.

[0020] Further, the grab disc is a six-grab-claw grab disc, and the adjacent grab claws are spaced 60° apart.

[0021] Further, the air pump suction disc comprises a suction shell, a suction cavity in a stepped arrangement is arranged in the suction shell, and the diameter of the lower end of the suction cavity is larger than that of the upper end, for sucking different diameter eggs, the top end of the suction cavity is communicated with a vacuum channel, and the vacuum channel is connected with a vacuum pump.

[0022] Further, the suction cavity is a zigzag horn structure, and the horn opening is arranged downward.

[0023] Further, the suction shell is an elastic shell.

[0024] The advantages of the present application are:

[0025] 1. The motor rotates to drive the transmission rod, the transmission rod drives the driving rod to rotate counterclockwise, and then drives the driven rod assembly to move up and down and left and right according to the predetermined trajectory, so that the rotating support, the grabbing disc and the air pump suction disc arranged at the lower end of the driven rod assembly move up and down and left and right, to realize the picking action of the air pump suction disc on the eggs, improve the egg picking efficiency, and the movement cycle of the driving rod and the driven rod assembly is single, the motor connected with the driving rod has stable energy consumption and is easy to predict, which helps to reduce the frequency of maintenance and replacement, thereby prolonging the service life of the device.

[0026] 2. The bottom end of the driven rod assembly is provided with a rotating support and a six-grabbing claw grabbing disc, and each grabbing claw is provided with an air pump suction disc. After one air pump suction disc sucks one egg, the rotating support is rotated by 60° and then the sucking activity is repeated. After the six air pump suction discs suck all the eggs, the multi-link egg picking mechanical device is moved, the six-grabbing claw grabbing disc is moved to the egg collecting box, the vacuum pump is turned off, and then the next cycle of egg picking activity is carried out. The present application has higher efficiency than the single suction disc sucking device.

[0027] 3. The eggs are special and belong to fragile goods. Compared with the mechanical claw grabbing, the present application controls the air pump suction disc to suck by the vacuum pump, the sucking effect is reliable, the eggs are not easy to fall off or shift during the sucking process, the air pump suction disc is not easy to damage the eggs, the integrity of the eggs is ensured, and in addition, the suction shell has a certain flexibility, and the suction cavity is a zigzag horn structure, which can adapt to eggs of different sizes, shapes and surfaces.

[0028] The multi-link egg picking mechanical device has the advantages of simple structure, long service life, high egg picking efficiency, time and labor saving, and low damage rate of eggs. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the multi-link egg picking mechanical device.

[0030] Figure 2 It is a side view structural schematic diagram of the multi-link egg picking mechanical device of the present application.

[0031] Figure 3.1 It is a motion diagram of the original driving rod and the driven rod assembly in the present application. Figure 1 ;

[0032] Figure 3.2 It is a motion diagram of the original driving rod and the driven rod assembly in the present application. Figure 2 ;

[0033] Figure 3.3 It is a motion diagram of the original driving rod and the driven rod assembly in the present application.

[0034] Figure 3.4 It is a motion diagram of the original driving rod and the driven rod assembly in the present application. Figure 4 ;

[0035] Figure 4 It is a longitudinal sectional view of the air pump suction disc in the present application.

[0036] In the figure: rack plate 1, original driving rod 2, driven rod assembly 3, rotating support 4, grabbing disc 5, air pump suction disc 6, bolt 7.

[0037] The rack plate 1 includes: first fixed rod 1.1, second fixed rod 1.2, transmission rod 1.3.

[0038] The driven rod assembly 3 includes: first driven rod 3.1, second driven rod 3.2, third driven rod 3.3, fourth driven rod 3.4, fifth driven rod 3.5, sixth driven rod 3.6, seventh driven rod 3.7, eighth driven rod 3.8, ninth driven rod 3.9, tenth driven rod 3.10.

[0039] The air pump suction disc 6 includes: adsorption shell 6.1, adsorption cavity 6.2, vacuum channel 6.3. DETAILED DESCRIPTION

[0040] The present application will be further described in detail below in combination with the drawings and specific examples.

[0041] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0042] As Figures 1-4As shown, the multi-link egg picking mechanical device of the present application comprises a vertically arranged rack plate 1, a horizontally and parallel arranged first fixed rod 1.1, a second fixed rod 1.2 and a transmission rod 1.3 connected with a motor are fixed on the same side of the rack plate 1, the second fixed rod 1.2 is located between the first fixed rod 1.1 and the transmission rod 1.3, the horizontal height of the transmission rod 1.3 is greater than that of the first fixed rod 1.1, and the horizontal height of the first fixed rod 1.1 is greater than that of the second fixed rod 1.2.

[0043] Specifically, the horizontal height difference between the transmission rod 1.3 and the first fixed rod 1.1 is 25-35 mm, and the horizontal height difference between the first fixed rod 1.1 and the second fixed rod 1.2 is 25-35 mm. The transmission rod 1.3, the first fixed rod 1.1 and the second fixed rod 1.2 have a certain height difference, which can avoid conflict when the subsequent driven rod assembly 3 moves.

[0044] Preferably, the transmission rod 1.3 and the prime mover rod 2 are connected by a key to ensure that the motor can drive the prime mover rod 2 to rotate efficiently through the transmission rod 1.3.

[0045] The transmission rod 1.3 is connected with a prime mover rod 2 arranged parallel to the rack plate 1, and the prime mover rod 2 is connected with a driven rod assembly 3, which is driven to move along a predetermined trajectory by the rotational movement of the prime mover rod 2.

[0046] The extension surface of the prime mover rod 2 is parallel to the extension surface of the rack plate 1, which ensures good transmission efficiency.

[0047] The specific structure of the driven rod assembly 3 is as follows:

[0048] The driven rod assembly 3 comprises a first driven rod 3.1 rotatably connected to the extension end of the prime mover rod 2 by a bolt 7, and the first driven rod 3.1 is arranged parallel to the rack plate 1 and located outside the prime mover rod 2.

[0049] The bolt 7 is used to connect the extension end of the prime mover rod 2 and the first driven rod 3.1 to ensure the working strength of the connection point during rotation.

[0050] The extension end of the first driven rod 3.1 is rotatably connected with a second driven rod 3.2 and a third driven rod 3.3 arranged parallel to the rack plate 1 by a bolt 7, and the third driven rod 3.3 is located inside the first driven rod 3.1, and the second driven rod 3.2 is located outside the first driven rod 3.1.

[0051] The bolt 7 is used to connect the extension end of the first driven rod 3.1, the second driven rod 3.2 and the third driven rod 3.3 to ensure the working strength of the connection point during rotation.

[0052] The extending end of the third driven rod 3.3 is rotatably connected with the fourth driven rod 3.4, the fifth driven rod 3.5 and the sixth driven rod 3.6 arranged in parallel with the rack plate 1 by bolts 7, and the fourth driven rod 3.4 is located inside the third driven rod 3.3, the extending end of the fourth driven rod 3.4 is rotatably connected with the extending end of the first fixed rod 1.1, the fifth driven rod 3.5 is located outside the third driven rod 3.3, and the sixth driven rod 3.6 is located outside the fifth driven rod 3.5.

[0053] The extending end of the third driven rod 3.3 is rotatably connected with the fourth driven rod 3.4, the fifth driven rod 3.5 and the sixth driven rod 3.6 arranged in parallel with the rack plate 1 by bolts 7, and the fourth driven rod 3.4 is located inside the third driven rod 3.3, the extending end of the fourth driven rod 3.4 is rotatably connected with the extending end of the first fixed rod 1.1, the fifth driven rod 3.5 is located outside the third driven rod 3.3, and the sixth driven rod 3.6 is located outside the fifth driven rod 3.5.

[0054] Specifically, the extending end of the fourth driven rod 3.4 is rotatably connected with the extending end of the first fixed rod 1.1 by a bearing, so as to ensure that the connecting rod mechanism can work stably.

[0055] The extending end of the fifth driven rod 3.5 is rotatably connected with the seventh driven rod 3.7 and the ninth driven rod 3.9 arranged in parallel with the rack plate 1 by bolts 7, and the seventh driven rod 3.7 is located outside the fifth driven rod 3.5, and the ninth driven rod 3.9 is located outside the fifth driven rod 3.5.

[0056] The extending end of the third driven rod 3.3 is rotatably connected with the fourth driven rod 3.4, the fifth driven rod 3.5 and the sixth driven rod 3.6 arranged in parallel with the rack plate 1 by bolts 7, and the fourth driven rod 3.4 is located inside the third driven rod 3.3, the extending end of the fourth driven rod 3.4 is rotatably connected with the extending end of the first fixed rod 1.1, the fifth driven rod 3.5 is located outside the third driven rod 3.3, and the sixth driven rod 3.6 is located outside the fifth driven rod 3.5.

[0057] The extending end of the second driven rod 3.2 is rotatably connected with the extending end of the second fixed rod 1.2, and the extending end of the second driven rod 3.2 is rotatably connected with the extending end of the seventh driven rod 3.7 and the eighth driven rod 3.8, the seventh driven rod 3.7 is located outside the second driven rod 3.2, and the eighth driven rod 3.8 is located outside the seventh driven rod 3.7.

[0058] Specifically, the extending end of the second driven rod 3.2 is rotatably connected with the extending end of the second fixed rod 1.2 by a bearing, so as to ensure that the connecting rod mechanism can work stably.

[0059] The extending end of the second driven rod 3.2 is rotatably connected with the extending end of the seventh driven rod 3.7 and the eighth driven rod 3.8 by a shaft coupling, so as to ensure that the connecting rod mechanism can work stably.

[0060] The extending end of the sixth driven rod 3.6 is rotatably connected with the extending end of the eighth driven rod 3.8 and the tenth driven rod 3.10 arranged in parallel with the rack plate 1 by bolts 7, and the eighth driven rod 3.8 is located outside the sixth driven rod 3.6, and the tenth driven rod 3.10 is located outside the eighth driven rod 3.8.

[0061] Bolts 7 are used to connect the extended end of the sixth driven rod 3.6, the extended end of the eighth driven rod 3.8 and the tenth driven rod 3.10 to ensure the working strength of the connection points during rotation.

[0062] The extended surface of each driven rod in the driven rod assembly 3 is parallel to the extended surface of the frame plate, ensuring that the connecting rod mechanism is smooth during transportation.

[0063] The extended ends of the ninth follower rod 3.9 and the tenth follower rod 3.10 are fixedly connected to the vertically downwardly arranged rotating support 4 by bolts 7. Bolts 7 are used to fix the extended ends of the ninth follower rod 3.9, the tenth follower rod 3.10 and the rotating support 4 to ensure connection strength and grasping accuracy.

[0064] In this embodiment, the motor rotates to drive the transmission rod 1.3, which causes the driving rod 2 to rotate counterclockwise, thereby driving the driven rod assembly 3 to move up and down and left and right along a predetermined trajectory (such as Figures 3.1-3.4 As shown), the rotating support 4 arranged in sequence at the lower end of the driven rod assembly 3 moves up and down and left and right. The movement cycle of the driving rod 2 and the driven rod assembly 3 is single, and the energy consumption of the motor connected to the driving rod 2 is stable and easy to predict, which helps to reduce the frequency of maintenance and replacement, thereby extending the service life of the device.

[0065] A grabbing plate 5 with multiple claws is provided at the bottom of the rotating support 4, and an air pump suction cup 6 for sucking up poultry eggs is provided at the bottom of each claw on the grabbing plate 5. When the driven rod assembly 3 moves repeatedly according to a predetermined trajectory, it drives the air pump suction cup 6 to move up and down and left and right to a clear and repeatable positioning point.

[0066] The rotating support 4 drives the grabbing plate 5 and the air pump suction cup 6 to move up and down and left and right, so that the air pump suction cup 6 can pick up the eggs, thereby improving the egg picking efficiency.

[0067] In this embodiment, the gripping plate 5 is a gripping plate with six gripping claws, and adjacent gripping claws are spaced 60 degrees apart to ensure that the air pump suction cups 6 do not collide with each other and damage the eggs during suction.

[0068] The bottom end of the driven rod assembly 3 in the present invention is equipped with a rotating support 4 and a six-claw grabbing plate 5, and the bottom end of each gripper is provided with an air pump suction cup 6. After an air pump suction cup 6 sucks an egg, the rotating support 4 is rotated 60° and the suction activity is repeated until all six air pump suction cups 6 have sucked all the eggs. Then, the multi-link egg picking mechanical device is moved, and the six-claw grabbing plate 5 is moved to the egg collection box. The vacuum pump is turned off, and after the air pump suction cup 6 unloads the eggs, the next cycle of egg picking activity is carried out. The present invention is more efficient than the single suction cup suction device.

[0069] Specifically, the air pump suction disc 6 comprises a suction shell 6.1, a suction cavity 6.2 arranged in a stepped manner is arranged in the suction shell 6.1, the lower end diameter of the suction cavity 6.2 is greater than the upper end diameter, the suction cavity 6.2 is used for sucking eggs with different diameters, a vacuum passage 6.3 is communicated with the top end of the suction cavity 6.2, and the vacuum passage 6.3 is connected with a vacuum pump.

[0070] Preferably, the suction cavity 6.2 is a zigzag horn structure, and the horn opening is arranged downward.

[0071] Preferably, the suction shell 6.1 is an elastic shell.

[0072] Eggs are special and belong to fragile articles. Compared with mechanical gripper egg grabbing, the air pump suction disc 6 controlled by the vacuum pump is used for sucking movement in the application, the sucking effect is reliable, the eggs are not easy to fall off or displace in the sucking process, the air pump suction disc 6 is less likely to damage the eggs, the integrity of the eggs is ensured, in addition, the suction shell 6.1 has a certain flexibility, and the suction cavity is a zigzag horn structure, which can adapt to eggs with different sizes, shapes and surfaces.

[0073] In the embodiment, the air pump suction disc 6 adopts a large-head double-layer DP vacuum suction disc, has good suction elasticity, and can be well adsorbed on the surface of the egg; the suction disc can generate about 3N suction force to pick up the egg under the vacuum pressure of 0.01Mpa, and has high reliability.

[0074] Preferably, each air pump suction disc 6 at the lower end of the gripper disc 5 is at the same horizontal position, so that the connecting rod device can ensure good working efficiency when picking up the eggs.

[0075] Preferably, the rack plate 1, the driving rod 2, the driven rod assembly 3 and the gripper disc 5 are metal members prepared from a metal material.

[0076] The multi-connecting rod type egg picking mechanical device has simple structure and long service life, improves the egg picking efficiency, saves time and labor, and is less likely to damage the eggs, so that the damage rate of the eggs is greatly reduced.

[0077] The above embodiment is a preferred embodiment of the application, but the embodiments of the application are not limited by the above embodiment, and any change, modification, replacement, combination and simplification made without departing from the spirit and principle of the application should be equivalent replacement, and all fall within the protection scope of the application.

Claims

1. A multi-link egg picking mechanism comprising a vertically arranged rack plate (1), characterized in that: The rack plate (1) is fixed with a horizontal and parallel arranged first fixed rod (1.1), a second fixed rod (1.2) and a transmission rod (1.3) connected with the motor on the same side, the second fixed rod (1.2) is located between the first fixed rod (1.1) and the transmission rod (1.3), the horizontal height of the transmission rod (1.3) is greater than that of the first fixed rod (1.1), and the horizontal height of the first fixed rod (1.1) is greater than that of the second fixed rod (1.2); The extension end of the transmission rod (1.3) is connected with a motive rod (2) arranged in parallel with the rack plate (1), and the motive rod (2) is connected with a driven rod assembly (3), and the rotation of the motive rod (2) drives the driven rod assembly (3) to move along a predetermined track; The driven rod assembly (3) comprises a first driven rod (3.1) rotatably connected with the extension end of the motive rod (2) through a bolt (7), and the first driven rod (3.1) is arranged in parallel with the rack plate (1) and located outside the motive rod (2); The extension end of the first driven rod (3.1) is rotatably connected with a second driven rod (3.2) and a third driven rod (3.3) arranged in parallel with the rack plate (1) through bolts (7), respectively, and the third driven rod (3.3) is located inside the first driven rod (3.1), and the second driven rod (3.2) is located outside the first driven rod (3.1); The extension end of the third driven rod (3.3) is rotatably connected with a fourth driven rod (3.4), a fifth driven rod (3.5) and a sixth driven rod (3.6) arranged in parallel with the rack plate (1) through bolts (7), respectively, and the fourth driven rod (3.4) is located inside the third driven rod (3.3), the extension end of the fourth driven rod (3.4) is rotatably connected with the extension end of the first fixed rod (1.1), the fifth driven rod (3.5) is located outside the third driven rod (3.3), and the sixth driven rod (3.6) is located outside the fifth driven rod (3.5); The extension end of the fifth driven rod (3.5) is rotatably connected with a seventh driven rod (3.7) and a ninth driven rod (3.9) arranged in parallel with the rack plate (1) through bolts (7), respectively, and the seventh driven rod (3.7) is located outside the fifth driven rod (3.5), and the ninth driven rod (3.9) is located outside the fifth driven rod (3.5); The extension end of the second driven rod (3.2) is rotatably connected with the extension end of the second fixed rod (1.2), and the extension end of the second driven rod (3.2) is rotatably connected with the extension end of the seventh driven rod (3.7) and the eighth driven rod (3.8), respectively, the seventh driven rod (3.7) is located outside the second driven rod (3.2), and the eighth driven rod (3.8) is located outside the seventh driven rod (3.7); The extension end of the sixth driven rod (3.6) is rotatably connected with the extension end of the eighth driven rod (3.8) and the tenth driven rod (3.10) arranged in parallel with the rack plate (1) through bolts (7), respectively, and the eighth driven rod (3.8) is located outside the sixth driven rod (3.6), and the tenth driven rod (3.10) is located outside the eighth driven rod (3.8). The extension end of the ninth driven rod (3.9) and the extension end of the tenth driven rod (3.10) are fixedly connected to the vertically downward arranged rotating support (4) through the bolt (7); the bottom end of the rotating support (4) is provided with a grab disc (5) carrying a plurality of grab claws, and the bottom end of each grab claw on the grab disc (5) is provided with a gas pump suction disc (6) for sucking and picking poultry eggs, so that the driven rod assembly (3) moves repeatedly along the predetermined track, and the gas pump suction disc (6) moves up and down, left and right to a clear and repeatable positioning point.

2. The multiple link egg picking mechanism of claim 1, wherein: The horizontal height difference between the transmission rod (1.3) and the first fixed rod (1.1) is 25-35 mm, and the horizontal height difference between the first fixed rod (1.1) and the second fixed rod (1.2) is 25-35 mm.

3. The multiple link egg picking mechanism of claim 2, wherein: The transmission rod (1.3) is connected with the original driving rod (2) through a key.

4. The multiple link egg picking mechanism of claim 3, wherein: The extension end of the fourth driven rod (3.4) is rotatably connected with the extension end of the first fixed rod (1.1) through a bearing, and the extension end of the second driven rod (3.2) is rotatably connected with the extension end of the second fixed rod (1.2) through a bearing.

5. The multiple link egg picking mechanism of claim 4, wherein: The extension end of the second driven rod (3.2) is rotatably connected with the extension end of the seventh driven rod (3.7) and the extension end of the eighth driven rod (3.8) through a shaft coupling.

6. The multiple linkage egg picking mechanism according to claim 1, wherein: The grab disc (5) is a six-grab claw grab disc, and the adjacent grab claws are spaced apart by 60°.

7. The multiple link egg picking mechanism of claim 6, wherein: The gas pump suction disc (6) comprises a suction shell (6.1), the suction shell (6.1) is provided with a suction cavity (6.2) arranged in a stepped manner, and the lower end diameter of the suction cavity (6.2) is larger than the upper end diameter, for sucking and picking poultry eggs of different diameters, the top end of the suction cavity (6.2) is communicated with a vacuum channel (6.3), and the vacuum channel (6.3) is connected with a vacuum pump.

8. The multiple link egg picking mechanism of claim 7, wherein: The suction cavity (6.2) is a sawtooth-shaped horn structure, and the horn opening is arranged downward.

9. The multiple link egg picking mechanism of claim 8, wherein: The suction shell (6.1) is an elastic shell.

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