Ventilation device, suction cup type grabbing machine and poultry egg sorting equipment

Abstract

The utility model provides a ventilation device, a suction cup type grabbing machine and poultry egg sorting equipment, the ventilation device comprises a valve body provided with an inner cavity, a gas outlet, a gas inlet, a first comprehensive gas port and a second comprehensive gas port, the gas outlet is used for communicating with a gas inlet of a negative pressure generator, the gas inlet is used for communicating with an exhaust port of the negative pressure generator, the first comprehensive gas port communicates with the outside, and the second comprehensive gas port communicates with the outside; the second comprehensive air port is used for being communicated with a cavity of the suction cup; the valve blade is rotatably arranged in the inner cavity, the valve blade has a first state in which the gas outlet is communicated with the second comprehensive gas port and the gas inlet is communicated with the first comprehensive gas port, and the valve blade also has a second state in which the gas inlet is communicated with the second comprehensive gas port and the gas outlet is communicated with the first comprehensive gas port; the input end of the grooved wheel mechanism is used for being connected with the output end of the driving mechanism, the input end of the grooved wheel mechanism can rotate along with the output end of the driving mechanism, and the output end of the grooved wheel mechanism is connected with the valve blades. The service life of the ventilation device can be prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of poultry egg sorting, and in particular to a ventilation device, a suction cup grabber and poultry egg sorting equipment. Background Art

[0002] Egg sorting equipment typically uses a suction cup manipulator to transfer eggs from egg trays to the sorting equipment for cleaning, weighing, and grading. During the transfer process, the suction cup manipulator must continuously inhale and exhale air to ensure the complete operation of the equipment.

[0003] At present, most suction cup manipulators on the market use repeated starting and stopping of the air pump switch to complete the switching of the air circuit, which greatly damages the service life of the air pump and leads to high maintenance costs in the later stage. Utility Model Content

[0004] The embodiments of the present application provide a ventilation device, a suction cup grabber, and an egg sorting device to solve the problems existing in the related technologies. The technical solutions are as follows:

[0005] In a first aspect, an embodiment of the present application provides a ventilation device, comprising:

[0006] A valve body, the valve body having an inner cavity, a gas outlet, a gas inlet, a first integrated gas port, and a second integrated gas port, the inner cavity communicating with the gas outlet, the gas inlet, the first integrated gas port, and the second integrated gas port, the gas outlet being configured to communicate with the gas inlet of the negative pressure generator, the gas inlet being configured to communicate with the exhaust port of the negative pressure generator, the first integrated gas port being configured to communicate with the outside world, and the second integrated gas port being configured to communicate with the cavity of the suction cup;

[0007] a valve leaf rotatably disposed in the inner cavity, the valve leaf having a first state in which the gas outlet is connected to the second integrated gas port and the gas inlet is connected to the first integrated gas port, so that the cavity of the suction cup is in a negative pressure state, and the valve leaf further having a second state in which the gas inlet is connected to the second integrated gas port and the gas outlet is connected to the first integrated gas port, and the valve leaf rotates to switch between the first and second states; and

[0008] A sheave mechanism, wherein the input end of the sheave mechanism is used to be connected to the output end of the driving mechanism, and the input end of the sheave mechanism can rotate along with the output end of the driving mechanism; the output end of the sheave mechanism is connected to the valve leaf, and the valve leaf can switch from the first state to the second state along with the rotation of the output end of the sheave mechanism.

[0009] In one embodiment, the sheave mechanism comprises:

[0010] frame;

[0011] an active dial, the active dial being rotatably mounted on the frame, the active dial being used to be connected to an output end of a driving mechanism, and the active dial being provided with an outwardly projecting locking portion and a roller; and

[0012] A driven sheave is connected to the valve leaf and is provided with a concave locking portion and a radial groove. When the concave locking portion cooperates with the convex locking portion, the active dial locks the driven sheave. When the radial groove cooperates with the roller, the active dial drives the driven sheave to rotate.

[0013] In one embodiment, the sheave mechanism further comprises:

[0014] A dial shaft is rotatably disposed on the frame, an output end of the dial shaft is connected to the active dial, and an input end of the dial shaft is used to be connected to an output end of a driving mechanism.

[0015] In one embodiment, the sheave mechanism further comprises:

[0016] At least two first bearings are provided on the frame, and at least two first bearings are arranged in sequence along the axial direction of the dial shaft, and the inner ring of the first bearing is for the dial shaft to pass through.

[0017] In one embodiment, second bearings are provided on opposite sides of the valve body, the first axial end of the valve leaf passes through the inner ring of one of the second bearings, and the second axial end of the valve leaf passes through the inner ring of the other second bearing.

[0018] In a second aspect, an embodiment of the present application provides a suction cup gripper, comprising:

[0019] A negative pressure generator, the negative pressure generator having an air inlet and an exhaust port, the air inlet being used to allow gas to be inhaled into the negative pressure generator, and the exhaust port being used to discharge the gas in the negative pressure generator;

[0020] suction cup grippers; and

[0021] The ventilation device mentioned above.

[0022] In one embodiment, the negative pressure generator comprises a suction fan.

[0023] In one embodiment, the suction cup gripper further comprises:

[0024] A driving mechanism, wherein a first output end of the driving mechanism is connected to the suction cup grabber, the suction cup grabber can rotate along with the first output end of the driving mechanism, and a second output end of the driving mechanism is connected to the input end of the grooved wheel mechanism.

[0025] In one embodiment, the suction cup gripper further comprises:

[0026] a driving sprocket, the driving sprocket being connected to the second output end of the driving mechanism and being capable of rotating along with the second end of the driving mechanism;

[0027] a driven sprocket connected to an input end of the sheave mechanism; and

[0028] A transmission chain is provided between the driving sprocket and the driven sprocket, and the transmission chain is used to transmit the driven sprocket.

[0029] In a third aspect, an embodiment of the present application provides a poultry egg sorting device, including the above-mentioned suction cup gripper.

[0030] The advantages or beneficial effects of the above technical solution include at least:

[0031] The ventilation device of the present invention includes a valve body, a valve leaf and a groove wheel mechanism. The gas outlet of the valve body can be connected to the air inlet of the negative pressure generator, and the gas inlet can be connected to the exhaust port of the negative pressure generator, so that the gas in the negative pressure generator can be transported to the gas inlet through the exhaust port. The first integrated air port is connected to the outside world, and the second integrated air port is connected to the cavity of the suction cup. The valve leaf has a first state in which the gas outlet is connected to the second integrated air port and the gas inlet is connected to the first integrated air port. In this way, when the negative pressure generator is started, the gas in the cavity of the suction cup can be transported to the negative pressure generator through the second integrated air port, the gas outlet, and the air inlet in sequence under the action of the negative pressure of the negative pressure generator, so that the cavity of the suction cup is in a negative pressure state, that is, the suction cup can inhale air, so that the suction cup can grab poultry eggs. At the same time, the gas discharged from the negative pressure generator is discharged to the outside world through the exhaust port, the gas inlet, and the first integrated air port in sequence, ensuring that the negative pressure generator can operate normally. The valve leaf also has a second state in which the gas inlet is connected to the second integrated air port and the gas outlet is connected to the first integrated air port. In this way, when the negative pressure generator is started, the external gas is sucked into the negative pressure generator through the first integrated air port, the gas outlet, and the air inlet in sequence under the action of the negative pressure generator, and the gas discharged from the negative pressure generator is discharged into the cavity of the suction cup through the exhaust port, the gas inlet, and the second integrated air port in sequence, so that the cavity of the suction cup is in a positive pressure state, and the suction cup can exhale, thereby allowing the suction cup to release the eggs. Among them, since the valve leaf can switch from the first state to the second state as the output end of the groove wheel mechanism rotates, the valve leaf can be driven to rotate intermittently by driving the groove wheel mechanism to achieve the switching of the gas outlet direction of the valve body, so that the suction cup can switch between the negative pressure state and the positive pressure state. The groove wheel mechanism has high working reliability, can operate stably under various working conditions, is not prone to failure, can increase the service life of the ventilation device, and at the same time, can also reduce the later maintenance cost of the ventilation device. In addition, the groove wheel mechanism has a simple structure and is easy to manufacture. It does not require a complicated processing process, which can reduce the cost of the ventilation device. In addition, the groove wheel mechanism has high mechanical efficiency, which can improve the grasping and releasing efficiency of the suction cup.

[0032] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0034] Figure 1 This is a schematic diagram of the three-dimensional structure of the ventilation device of the present invention;

[0035] Figure 2 This is an exploded view of the ventilation device of the present invention;

[0036] Figure 3 This is a schematic structural diagram of the ventilation device, negative pressure generator, and driving mechanism of the present invention assembled together;

[0037] Figure 4 It is a schematic diagram of the three-dimensional structure of the negative pressure generator in the present utility model;

[0038] Figure 5 It is a schematic diagram of the three-dimensional structure of the suction cup grabber of the present invention.

[0039] Reference numerals

[0040] 1. Valve body; 11. Inner cavity; 12. Gas outlet; 13. Gas inlet; 14. First integrated gas port; 15. Second integrated gas port; 2. Valve leaf; 3. Groove mechanism; 31. Frame; 32. Active dial; 321. Outer convex locking portion; 322. Roller; 33. Driven groove pulley; 331. Inner concave locking portion; 332. Radial groove; 34. Dial shaft; 35. First bearing; 4. Second bearing; 5. Negative pressure generator; 51. Air inlet; 52. Exhaust port; 6. Suction cup grabber; 7. Driving mechanism; 71. Motor; 72. Reducer; 8. Active sprocket; 9. Driven sprocket; 10. Transmission chain. DETAILED DESCRIPTION

[0041] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0042] See also Figure 1-Figure 5 , shows a ventilation device in a preferred embodiment of the present invention, comprising:

[0043] The valve body 1 has an inner cavity 11, a gas outlet 12, a gas inlet 13, a first integrated gas port 14 and a second integrated gas port 15. The inner cavity 11 is connected to the gas outlet 12, the gas inlet 13, the first integrated gas port 14 and the second integrated gas port 15. The gas outlet 12 is used to communicate with the gas inlet 51 of the negative pressure generator 5, the gas inlet 13 is used to communicate with the exhaust port 52 of the negative pressure generator 5, the first integrated gas port 14 is connected to the outside, and the second integrated gas port 15 is used to communicate with the cavity of the suction cup;

[0044] The valve leaf 2 is rotatably disposed in the inner cavity 11. The valve leaf 2 has a first state in which the gas outlet 12 is connected to the second integrated gas port 15 and the gas inlet 13 is connected to the first integrated gas port 14, so that the cavity of the suction cup is in a negative pressure state. The valve leaf 2 also has a second state in which the gas inlet 13 is connected to the second integrated gas port 15 and the gas outlet 12 is connected to the first integrated gas port 14. The valve leaf 2 rotates to switch between the first state and the second state; and

[0045] The grooved wheel mechanism 3, the input end of the grooved wheel mechanism 3 is used to be connected to the output end of the driving mechanism 7, the input end of the grooved wheel mechanism 3 can rotate with the output end of the driving mechanism 7, the output end of the grooved wheel mechanism 3 is connected to the valve leaf 2, and the valve leaf 2 can switch from the first state to the second state as the output end of the grooved wheel mechanism 3 rotates.

[0046] The ventilation device of the present invention includes a valve body 1, a valve leaf 2 and a groove wheel mechanism 3. The gas outlet 12 of the valve body 1 can be communicated with the air inlet 51 of the negative pressure generator 5, and the gas inlet 13 can be communicated with the exhaust port 52 of the negative pressure generator 5, so that the gas in the negative pressure generator 5 can be transported to the gas inlet 13 through the exhaust port 52, the first integrated gas port 14 is connected to the outside, and the second integrated gas port 15 can be communicated with the cavity of the suction cup. The valve leaf 2 has a first state in which the gas outlet 12 is connected to the second integrated gas port 15 and the gas inlet 13 is connected to the first integrated gas port 14 at the same time. In this way, in the negative pressure generator When the negative pressure generator 5 is started, the gas in the cavity of the suction cup can be transported to the negative pressure generator 5 through the second integrated gas port 15, the gas outlet 12, and the air inlet 51 in sequence under the negative pressure of the negative pressure generator 5, so that the cavity of the suction cup is in a negative pressure state, that is, the suction cup can inhale air, so that the suction cup can grab the eggs. At the same time, the gas discharged by the negative pressure generator 5 is discharged to the outside through the exhaust port 52, the gas inlet 13, and the first integrated gas port 14 in sequence, ensuring that the negative pressure generator 5 can operate normally. The valve leaf 2 also has the function of connecting the gas inlet 13 to the second integrated gas port 15 and the gas outlet 1 2 is connected to the second state of the first integrated air port 14. In this way, when the negative pressure generator 5 is started, the external air is sucked into the negative pressure generator 5 through the first integrated air port 14, the gas outlet 12, and the air inlet 51 in sequence under the action of the negative pressure generator 5. At the same time, the gas discharged from the negative pressure generator 5 is discharged into the cavity of the suction cup through the exhaust port 52, the gas inlet 13, and the second integrated air port 15 in sequence, so that the cavity of the suction cup is in a positive pressure state, allowing the suction cup to exhale, thereby allowing the suction cup to release the poultry eggs. Among them, since the valve leaf 2 can rotate with the output end of the groove wheel mechanism 3, it switches from the first state to In the second state, the groove wheel mechanism 3 is driven to drive the valve leaf 2 to rotate intermittently to realize the switching of the air outlet direction of the valve body 1, so that the suction cup can switch between the negative pressure state and the positive pressure state. The groove wheel mechanism 3 has high working reliability, can operate stably under various working conditions, is not prone to failure, can increase the service life of the ventilation device, and at the same time, can also reduce the later maintenance cost of the ventilation device. In addition, the groove wheel mechanism 3 has a simple structure and is easy to manufacture. It does not require a complicated processing process, which can reduce the cost of the ventilation device. In addition, the groove wheel mechanism 3 has high mechanical efficiency and can improve the grasping and releasing efficiency of the suction cup.

[0047] See also Figure 1-Figure 2 In one embodiment, the sheave mechanism 3 comprises:

[0048] Frame 31;

[0049] An active dial 32 rotatably mounted on the frame 31 . The active dial 32 is configured to connect to the output end of the driving mechanism 7 . The active dial 32 includes an outwardly projecting locking portion 321 and a roller 322 .

[0050] The driven sheave 33 is connected to the valve leaf 2 and is provided with a concave locking portion 331 and a radial groove 332. When the active dial 32 is rotated so that the concave locking portion 331 cooperates with the convex locking portion 321, the active dial 32 locks the driven sheave 33, thereby locking the valve leaf 2, so that the valve leaf 2 can reliably maintain the first state, so that the suction cup can reliably grab the poultry eggs. When the active dial 32 is rotated so that the radial groove 332 and the roller 322 cooperate, the active dial 32 drives the driven sheave 33 to rotate, thereby driving the valve leaf 2 to rotate intermittently, so that the valve leaf 2 can switch between the first state and the second state.

[0051] See also Figure 1-Figure 2 In one embodiment, the sheave mechanism 3 further comprises:

[0052] The dial shaft 34 is rotatably provided on the frame 31. The output end of the dial shaft 34 is connected to the active dial 32, and the input end of the dial shaft 34 is used to be connected to the output end of the drive mechanism 7. The setting of the dial shaft 34 can support the active dial 32 and connect the active dial 32 and the output end of the drive mechanism 7, which facilitates the installation of the active dial 32 and makes the active dial 32 rotate more smoothly and stably.

[0053] See also Figure 3 In one embodiment, the sheave mechanism 3 further comprises:

[0054] At least two first bearings 35 are provided on the frame 31. At least two first bearings 35 are arranged in sequence along the axial direction of the dial shaft 34. The inner ring of the first bearing 35 is provided for the dial shaft 34 to pass through to support the dial shaft 34, reduce the friction coefficient of the dial shaft 34 during rotation, and ensure the rotation accuracy of the dial shaft 34.

[0055] See also Figure 1-Figure 3 In one embodiment, second bearings 4 are provided on opposite sides of the valve body 1, the first axial end of the valve leaf 2 is passed through the inner ring of one of the second bearings 4, and the second axial end of the valve leaf 2 is passed through the inner ring of the other second bearing 4 to support the valve leaf 2, reduce the friction coefficient of the valve leaf 2 during rotation, and ensure the rotation accuracy of the valve leaf 2.

[0056] In one embodiment, the first bearing 35 and the second bearing 4 are both flange-type seated bearings. The first bearing 35 can be installed on the frame 31 by directly fixing the seat of the first bearing 35 to the frame 31. The second bearing 4 can be installed on the valve body 1 by directly fixing the seat of the second bearing 4 to the valve body 1. No additional bearing seat is required, which makes installation more convenient.

[0057] See also Figure 3-Figure 5A preferred embodiment of the present invention provides a suction cup grabbing machine, comprising:

[0058] The negative pressure generator 5 has an air inlet 51 and an exhaust port 52. The air inlet 51 is used to allow gas to be sucked into the negative pressure generator 5, and the exhaust port 52 is used to discharge the gas in the negative pressure generator 5;

[0059] Suction cup gripper 6; and

[0060] The ventilation device mentioned above.

[0061] The suction cup grabber of the present invention adopts the above-mentioned suction cup grabber 6. It is also based on the fact that the valve leaf 2 can switch from the first state to the second state as the output end of the groove wheel mechanism 3 rotates, so that the valve leaf 2 can be driven to rotate intermittently by driving the groove wheel mechanism 3 to realize the switching of the air outlet direction of the valve body 1, so that the suction cup can switch between the negative pressure state and the positive pressure state. The groove wheel mechanism 3 has high working reliability, can operate stably under various working conditions, is not prone to failure, can increase the service life of the ventilation device, and can also reduce the later maintenance cost of the ventilation device. In addition, the groove wheel mechanism 3 has a simple structure and is easy to manufacture. It does not require a complicated processing process, which can reduce the cost of the ventilation device. In addition, the groove wheel mechanism 3 has high mechanical efficiency and can improve the grasping and releasing efficiency of the suction cup.

[0062] In one embodiment, the negative pressure generator 5 includes a suction fan, which can provide a stable and efficient air source to the suction cup. Compared with the vacuum generator, the suction fan has higher stability and can greatly improve the gripping reliability of the suction cup, thereby improving efficiency and avoiding damage to poultry eggs.

[0063] Of course, in other embodiments, the negative pressure generator 5 may also be a vacuum pump.

[0064] In one embodiment, the suction cup gripper further comprises:

[0065] The driving mechanism 7, the first output end of the driving mechanism 7 is connected to the suction cup grabber 6, the suction cup grabber 6 can rotate with the first output end of the driving mechanism 7, the second output end of the driving mechanism 7 is connected to the input end of the grooved wheel mechanism 3, so that the grooved wheel mechanism 3 and the driving mechanism 7 of the suction cup grabber 6 are linked, which can improve the utilization rate of the driving mechanism 7. At the same time, it is unnecessary to configure an additional power source for the grooved wheel mechanism 3, which can simplify the structure and reduce costs.

[0066] In one embodiment, the driving mechanism 7 includes a motor 71 and a reducer 72, the input end of the reducer 72 is connected to the output end of the motor 71, the input end of the reducer 72 can rotate with the output end of the motor 71, the first output end of the reducer 72 is connected to the suction cup grabber 6, and the second output end of the reducer 72 is connected to the input end of the grooved wheel mechanism 3.

[0067] See also Figure 3 In one embodiment, the suction cup gripper further comprises:

[0068] A driving sprocket 8 is connected to the second output end of the driving mechanism 7, and the driving sprocket 8 can rotate along with the second end of the driving mechanism 7;

[0069] A driven sprocket 9 is connected to the input end of the sheave mechanism 3; and

[0070] The transmission chain 10 is sleeved between the driving sprocket 8 and the driven sprocket 9, and is used to drive the driven sprocket 9. In this way, the power of the driving sprocket 8 is transmitted to the driven sprocket 9 through the transmission chain 10, and then the power is transmitted to the grooved wheel mechanism 3 through the driven sprocket 9. The transmission ratio is accurate, the operation is reliable, and the efficiency is high. It can reduce power loss, ensure that the grooved wheel mechanism 3 can operate efficiently, and thus improve the grasping and releasing efficiency of the suction cup.

[0071] Of course, in other embodiments, the driving sprocket 8 , the driven sprocket 9 and the transmission chain 10 may also be replaced by a belt transmission mechanism.

[0072] A preferred embodiment of the present invention provides an egg sorting device, comprising the above-mentioned suction cup type grabbing machine.

[0073] The poultry egg sorting equipment of the present invention adopts the above-mentioned suction cup grabber. It is also based on the fact that the valve leaf 2 can switch from the first state to the second state as the output end of the groove wheel mechanism 3 rotates, so that the valve leaf 2 can be driven to rotate intermittently by driving the groove wheel mechanism 3 to realize the switching of the air outlet direction of the valve body 1, so that the suction cup can switch between the negative pressure state and the positive pressure state. The groove wheel mechanism 3 has high working reliability, can operate stably under various working conditions, is not prone to failure, can increase the service life of the ventilation device, and can also reduce the later maintenance cost of the ventilation device. In addition, the groove wheel mechanism 3 has a simple structure and is easy to manufacture. It does not require a complicated processing process, which can reduce the cost of the ventilation device. In addition, the groove wheel mechanism 3 has high mechanical efficiency and can improve the grasping and releasing efficiency of the suction cup.

[0074] In the description of this specification, the reference terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0076] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A ventilation device, characterized in that: include: A valve body, the valve body having an inner cavity, a gas outlet, a gas inlet, a first integrated gas port, and a second integrated gas port, the inner cavity communicating with the gas outlet, the gas inlet, the first integrated gas port, and the second integrated gas port, the gas outlet being configured to communicate with the gas inlet of the negative pressure generator, the gas inlet being configured to communicate with the exhaust port of the negative pressure generator, the first integrated gas port being configured to communicate with the outside world, and the second integrated gas port being configured to communicate with the cavity of the suction cup; a valve leaf rotatably disposed in the inner cavity, the valve leaf having a first state in which the gas outlet is connected to the second integrated gas port and the gas inlet is connected to the first integrated gas port, so that the cavity of the suction cup is in a negative pressure state; and a second state in which the gas inlet is connected to the second integrated gas port and the gas outlet is connected to the first integrated gas port. The valve leaf rotates to switch between the first and second states. as well as A sheave mechanism, wherein the input end of the sheave mechanism is used to be connected to the output end of the driving mechanism, and the input end of the sheave mechanism can rotate along with the output end of the driving mechanism; the output end of the sheave mechanism is connected to the valve leaf, and the valve leaf can switch from the first state to the second state along with the rotation of the output end of the sheave mechanism.

2. The ventilation device according to claim 1, characterized in that The sheave mechanism comprises: frame; An active dial, the active dial being rotatably mounted on the frame, the active dial being used to connect to an output end of a driving mechanism, and the active dial being provided with an outwardly projecting locking portion and a roller; and A driven sheave is connected to the valve leaf and is provided with a concave locking portion and a radial groove. When the concave locking portion cooperates with the convex locking portion, the active dial locks the driven sheave. When the radial groove cooperates with the roller, the active dial drives the driven sheave to rotate.

3. The ventilation device according to claim 2, characterized in that The sheave mechanism further comprises: A dial shaft is rotatably disposed on the frame, an output end of the dial shaft is connected to the active dial, and an input end of the dial shaft is used to be connected to an output end of a driving mechanism.

4. The ventilation device according to claim 3, characterized in that The sheave mechanism further comprises: At least two first bearings are provided on the frame, and at least two first bearings are arranged in sequence along the axial direction of the dial shaft, and the inner ring of the first bearing is for the dial shaft to pass through.

5. The ventilation device according to claim 1, characterized in that Second bearings are provided on opposite sides of the valve body, the first axial end of the valve leaf passes through the inner ring of one of the second bearings, and the second axial end of the valve leaf passes through the inner ring of the other second bearing.

6. Suction cup grabbing machine, characterized in that, include: A negative pressure generator, the negative pressure generator having an air inlet and an exhaust port, the air inlet being used to allow gas to be inhaled into the negative pressure generator, and the exhaust port being used to discharge the gas in the negative pressure generator; Suction cup gripper; as well as The ventilation device according to any one of claims 1 to 5.

7. The suction cup grabber according to claim 6, characterized in that: The negative pressure generator includes a suction fan.

8. The suction cup grabber according to claim 6, characterized in that: The suction cup grabber also includes: A driving mechanism, wherein a first output end of the driving mechanism is connected to the suction cup grabber, the suction cup grabber can rotate along with the first output end of the driving mechanism, and a second output end of the driving mechanism is connected to the input end of the grooved wheel mechanism.

9. The suction cup grabber according to claim 8, characterized in that: The suction cup grabber also includes: a driving sprocket, the driving sprocket being connected to the second output end of the driving mechanism and being capable of rotating along with the second end of the driving mechanism; a driven sprocket connected to an input end of the sheave mechanism; and A transmission chain is provided between the driving sprocket and the driven sprocket, and the transmission chain is used to transmit the driven sprocket.

10. Poultry egg sorting equipment, characterized in that, The invention comprises the suction cup gripper according to any one of claims 6 to 9.

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