feeder

Abstract

This utility model discloses a feeder, including a storage container and a base. The storage container is mounted on the base and has a discharge port and a feeding paddle for pushing the feed in the storage container to the discharge port. A sealing valve is provided at the discharge port. The base houses a main control circuit board and a vacuum pumping mechanism, a discharge drive motor, and a valve switching mechanism electrically connected to the main control circuit board. The vacuum pumping mechanism has a suction nozzle communicating with the inside of the storage container. The storage container is equipped with a manual venting device, which includes an venting channel and an venting valve body. The venting channel connects the inner and outer sides of the storage container, and the venting valve body is movably engaged with the venting channel. Under normal or negative pressure conditions inside the storage container, the venting valve body closes the venting channel. The venting valve body has a touch-sensitive part, allowing direct or indirect manual activation to open the venting channel. This utility model's manual venting device does not rely on a power source for venting, making operation more convenient.

Description

Technical Field

[0001] This utility model relates to the field of pet feeder technology, and in particular to a feeder. Background Technology

[0002] Chinese Patent Publication No. CN217364215U, published on September 6, 2022, discloses an intelligent pet feeder, including a base, a food storage device, a vacuum pumping device, and a sealed valve. The food storage device is located above the base, while the vacuum pumping device and the sealed valve are located inside the base. The vacuum pumping device removes air from the food storage device to enhance the storage effect of the intelligent pet feeder. The structure also describes how the vacuum pumping device can make the air pressure inside the food storage housing equal to the external pressure, achieving pressure relief to facilitate opening the valve and the food storage cover. This structure relies on sensing the pet's proximity to determine if the pet needs to eat, thereby releasing pressure and opening the valve. However, when opening the food storage cover under vacuum conditions, pressure relief needs to be controlled via a control panel, which is cumbersome. Utility Model Content

[0003] The purpose of this invention is to provide a feeder with a reasonable structure and convenient operation.

[0004] The purpose of this utility model is achieved as follows:

[0005] A feeder includes a storage container and a base. The storage container is mounted on the base and has a discharge port and a feeding paddle for pushing feed from the storage container to the discharge port. A sealing valve is provided at the discharge port. The base contains a main control circuit board and a vacuum pump, a discharge drive motor, and a valve switching mechanism electrically connected to the main control circuit board. The vacuum pump has an air extraction nozzle communicating with the inside of the storage container. The feed container is characterized by a manual exhaust device, which includes an exhaust channel and an exhaust valve body. The exhaust channel connects the inner and outer sides of the storage container. The exhaust valve body is movably engaged with the exhaust channel. Under normal or negative pressure conditions inside the storage container, the exhaust valve body closes the exhaust channel. The exhaust valve body has a touch control section on its upper part, allowing direct or indirect manual activation of the exhaust valve body to open the exhaust channel.

[0006] The objective of this utility model can also be achieved by the following technical measures:

[0007] As a more specific embodiment, the storage container includes a material bucket and a sealing cover. The material bucket has a storage cavity inside, the top of which is open. The sealing cover is fitted to the top of the storage cavity and seals it. The manual venting device is installed on the sealing cover.

[0008] As a further embodiment, the sealing cap is provided with a handle, and the exhaust channel is disposed on the handle; the exhaust valve body includes a sealing valve plate, a connecting rod, and a baffle plate connected in sequence, the outer periphery of the bottom surface of the sealing valve plate is used to abut against the outer periphery of the outer end of the exhaust channel for sealing, the inner side of the outer end of the exhaust channel is provided with an exhaust groove, the exhaust groove is lower than the outer end face of the exhaust channel; the connecting rod is disposed in the exhaust channel, the inner end of the exhaust channel is also provided with an air inlet groove, the air inlet groove is connected to the inner cavity of the storage container and the exhaust channel, the top surface of the baffle plate abuts against the inner end of the exhaust channel; the center of the sealing valve plate forms the touch part.

[0009] As a further embodiment, the outer end face of the exhaust channel is a convex annular surface. Under normal or negative pressure conditions in the storage container, the outer periphery of the bottom surface of the sealing valve plate abuts against the convex annular surface to seal. Several protruding support points are distributed in a ring on the inner side of the outer end of the exhaust channel, and the exhaust groove is formed between the protruding support points. The outer end face of the protruding support point is lower than the outer end face of the convex annular surface.

[0010] As a further embodiment, the sealing cover includes a transparent cover and a sealing ring. The sealing ring is disposed on the outer periphery of the transparent cover and abuts against the opening of the storage chamber for sealing. The transparent cover has a first through hole. The handle is supported on the outside of the first through hole by an upper sealing gasket. A threaded sleeve is provided at the bottom of the handle corresponding to the periphery of the exhaust channel. A locking member is provided at the bottom of the transparent cover. The locking member abuts against the bottom of the transparent cover by a lower sealing gasket. The locking member is threadedly connected to the threaded sleeve. The upper sealing gasket, the transparent cover, and the lower sealing gasket are pressed between the handle and the locking member.

[0011] As a further embodiment, the vacuum pump includes a vacuum pump and a pressure switch. The vacuum pump has an exhaust port and an extraction port. The exhaust port is connected to the outside. The vacuum pump is electrically connected to the main control circuit board via the pressure switch. The pressure switch has a pressure collection port, which is connected to the storage chamber of the material bucket. The bottom of the material bucket has an extraction port and a discharge port connected to the storage chamber. The extraction port is connected to the extraction port. The sealing valve includes a rigid support plate and a silicone valve sleeve. The silicone valve sleeve is at least fitted over the top surface of the rigid support plate. A connecting arm is provided on one side of the rigid support plate. The valve switching mechanism is a valve drive motor. The valve drive motor is connected to the connecting arm and controls the lateral movement of the sealing valve to cover or open the discharge port. The top surface of the silicone valve sleeve has an annular valve blade corresponding to the bottom periphery of the discharge port. The valve blade fits against the bottom periphery of the discharge port.

[0012] As a further embodiment, a discharge channel is provided below the discharge port. One end of the discharge channel has an open opening corresponding to the discharge port, and the other end of the discharge channel passes through the outside of the machine base. A valve locking mechanism is also provided inside the machine base corresponding to the sealing valve. The valve locking mechanism includes a push rod, a lifting drive motor, a motor frame, and a lead screw transmission pair. The lifting drive motor is fixedly installed below the discharge port through the motor frame. The push rod passes through the discharge channel from bottom to top and is used to press against the bottom of the sealing valve.

[0013] As a further embodiment, the base includes a pad, a body, and an inner liner. The inner liner is connected between the material barrel and the pad, and the body is fitted over the inner liner and located between the material barrel and the pad. The inner liner has a shelf, and the main control circuit board, vacuum pump, discharge drive motor, and valve drive motor are mounted on the shelf. The discharge channel is connected to the bottom of the shelf, and the shelf has a perimeter surrounding the area covered by the movement trajectory of the sealing valve. The bottom of the perimeter has a funnel hole, which is opposite to the open opening of the discharge channel. The motor frame is connected to the discharge channel.

[0014] As a further embodiment, a shaft seat sleeve is provided at the bottom center of the material barrel, and a corresponding shaft seat is provided on the shelf. The discharge drive motor is located at the bottom of the shelf and has an output shaft for driving the feeding paddle. A positioning sleeve is provided on the shelf corresponding to the output shaft, and a groove is provided at the top of the positioning sleeve. A sealing shaft sleeve is provided in the groove. The positioning sleeve is inserted into the shaft seat sleeve, and the output shaft extends into the material barrel through the shaft seat sleeve. The top and inner sides of the sealing shaft sleeve are respectively provided with upper sealing blades and inner sealing blades, which respectively seal and cooperate with the inner top surface of the shaft seat sleeve and the outer peripheral surface of the output shaft. The feeding paddle includes a hub and segmented paddles. Multiple segmented paddles are provided and evenly distributed on the outer periphery of the hub. The hub is hood-shaped and close to the bottom of the discharge chamber. The air extraction port is located within the area covered by the hub, and the discharge port is located within the area through which the segmented paddles pass. The bottom center of the hub is connected to the output shaft, and the top center of the hub is provided with a clutch groove.

[0015] As a further embodiment, a guide baffle is provided above the feeding paddle in the storage cavity. The guide baffle is conical, and a feeding wheel is provided at the bottom of the inner side of the guide baffle. A clutch plug is provided at the bottom of the feeding wheel. The clutch plug passes through the guide baffle and engages with the clutch groove. A retaining spring is provided on the outer bottom surface of the guide baffle corresponding to the clutch plug. A surrounding plate is also provided on the outer bottom of the guide baffle. The surrounding plate extends toward the bottom surface of the storage cavity. The feeding paddle is located inside the surrounding plate. A discharge port is provided at the bottom of the guide baffle corresponding to the inner side of the surrounding plate.

[0016] As a further embodiment, the pressure switch includes a low-pressure detection pressure switch and a high-pressure detection pressure switch; and / or, an electromagnetic exhaust valve is provided on the air line communicating with the storage chamber, and the electromagnetic exhaust valve is electrically connected to the main control circuit board.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention features a manual venting device that allows for venting without relying on a power source. Furthermore, the manual venting device is located on the handle of the lid, allowing the user to more easily control the venting valve when opening the lid by squeezing the handle, thus connecting the inside and outside of the storage container and facilitating the opening of the lid. Attached Figure Description

[0019] Figure 1 This is an exploded structural diagram of an embodiment of the present invention.

[0020] Figure 2 for Figure 1 Another structural diagram from a different angle.

[0021] Figure 3 This is a schematic diagram of the assembled structure of this utility model.

[0022] Figure 4 This is a top view of the structure of this utility model.

[0023] Figure 5 for Figure 4 A schematic diagram of the AA cross-section (vacuum state).

[0024] Figure 6 for Figure 5 Enlarged structural diagram at point B.

[0025] Figure 7 for Figure 5 Enlarged structural diagram at point C.

[0026] Figure 8 This is a schematic diagram of the exhaust valve structure in this utility model.

[0027] Figure 9 for Figure 8 Another structural diagram from a different angle.

[0028] Figure 10 This is a schematic diagram of the handle structure in this utility model.

[0029] Figure 11 for Figure 10 Another structural diagram from a different angle.

[0030] Figure 12 for Figure 5 Schematic diagram of the structure in the depressurization state.

[0031] Figure 13 for Figure 12 Enlarged structural diagram at point D.

[0032] Figure 14This is a three-dimensional structural diagram of the valve in this utility model.

[0033] Figure 15 for Figure 14 Another structural diagram from a different angle.

[0034] Figure 16 This is a cross-sectional view of the valve in this utility model.

[0035] Figure 17 This is a schematic diagram of the sealing bushing structure of the drive shaft in this utility model.

[0036] Figure 18 for Figure 17 A schematic diagram of the sealing bushing from another angle.

[0037] Figure 19 This is a schematic diagram of the material hopper structure of this utility model.

[0038] Figure 20 This is a schematic diagram of the valve locking mechanism in this utility model.

[0039] Figure 21 for Figure 20 Another structural diagram from a different angle.

[0040] Figure 22 This is a schematic diagram of the inner liner frame and its electrical components in this utility model.

[0041] Figure 23 This is a three-dimensional structural diagram of another embodiment of the present invention.

[0042] In the diagram: 1 is the base, 11 is the pad, 111 is the clamping block, 12 is the seat, 121 is the discharge channel, 13 is the control panel, 141 is the single-disc feeding trough, 142 is the double-disc feeding trough, 15 is the battery box, 16 is the inner liner frame, 161 is the positioning sleeve, 17 is the edging, and 18 is the suction cup.

[0043] 2 is the material bucket, 21 is the material storage cavity, 22 is the material guide baffle, 23 is the material outlet, 24 is the surrounding plate, 25 is the air extraction port, 26 is the material outlet, 27 is the shaft seat sleeve, 28 is the baffle rib, and 29 is the positioning groove.

[0044] 3 is a sealing cap, 31 is a transparent cap, 32 is a sealing ring, 33 is a handle, 331 is an exhaust passage, 332 is a raised fulcrum, 333 is a raised ring surface, 334 is a lower protrusion, 34 is an exhaust valve body, 341 is a sealing valve plate, 342 is a connecting rod, 343 is a baffle plate, 35 is a locking element, 36 is a lower sealing gasket, and 37 is an upper sealing gasket.

[0045] 4 is a receiving tray, and 41 is a card holder;

[0046] 5 is the feed paddle, 51 is the hub, 52 is the segmented paddle, 53 is the clutch groove, 54 is the feed wheel, 55 is the clutch plug, 56 is the snap ring, 57 is the sealing bushing, 571 is the upper sealing blade, 572 is the inner sealing blade, and 573 is the annular deformation groove.

[0047] 6 is the discharge drive motor, and 61 is the output shaft;

[0048] 7 is a vacuum pump, and 71 is a flow divider.

[0049] 8 is a sealing valve, 81 is a valve drive motor, 82 is a silicone valve sleeve, 821 is a valve blade, 822 is an edge banding, 83 is a rigid support plate, and 831 is a connecting arm.

[0050] 9 is the valve locking mechanism, 91 is the push rod, 92 is the rod seat, 921 is the guide arm, 922 is the union hole, 93 is the lifting drive motor, 94 is the motor frame, 95 is the screw, 96 is the nut, 961 is the union pin, 97 is the connecting seat, and 971 is the guide groove.

[0051] 10 is the main control circuit board, 101 is the low-pressure detection pressure switch, and 102 is the high-pressure detection pressure switch. Detailed Implementation

[0052] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0053] See Figures 1-22 As shown, a feeder includes a storage container and a base 1. The storage container is mounted on the base 1 and has a discharge port 26 and a feeding paddle 5 for pushing the feed in the storage container to the discharge port 26. A sealing valve 8 is provided at the discharge port 26. The base 1 contains a main control circuit board 10 and a vacuum pump 7, a discharge drive motor 6, and a valve switching mechanism electrically connected to the main control circuit board 10. The vacuum pump 7 has an air extraction nozzle that communicates with the inside of the storage container. The storage container is equipped with a manual exhaust device, which includes an exhaust channel 331 and an exhaust valve body 34. The exhaust channel 331 connects the inner and outer sides of the storage container. The exhaust valve body 34 is movably engaged with the exhaust channel 331. Under normal or negative pressure conditions inside the storage container, the exhaust valve body 34 closes the exhaust channel 331. The exhaust valve body 34 has a touch control part on its upper part, which can be manually activated directly or indirectly to open the exhaust channel 331.

[0054] The storage container includes a material bucket 2 and a sealing cover 3. The material bucket 2 is provided with a storage cavity 21. The top of the storage cavity 21 is open. The sealing cover 3 is fitted to the top of the storage cavity 21 and seals it. The manual venting device is provided on the sealing cover 3.

[0055] The sealing cover 3 is provided with a handle 33, and the exhaust channel 331 is disposed on the handle 33. The exhaust valve body 34 includes a sealing valve plate 341, a connecting rod 342, and a baffle 343 connected in sequence. The outer periphery of the bottom surface of the sealing valve plate 341 is used to seal against the outer periphery of the outer end of the exhaust channel 331. An exhaust groove is provided on the inner side of the outer end of the exhaust channel 331, and the exhaust groove is lower than the outer end face of the exhaust channel 331. The connecting rod 342 is disposed in the exhaust channel 331. An air inlet groove is also provided at the inner end of the exhaust channel 331. The air inlet groove communicates with the inner cavity of the storage container and the exhaust channel 331. The top surface of the baffle 343 abuts against the inner end of the exhaust channel 331. The center of the sealing valve plate 341 forms the touch part. The inner end of the exhaust channel 331 is provided with two or more lower protrusions 334, and a venting groove is formed between the lower protrusions 334.

[0056] The outer end face of the exhaust channel 331 is a convex annular surface 333. Under normal or negative pressure conditions in the storage container, the outer periphery of the bottom surface of the sealing valve plate 341 abuts against the convex annular surface 333 to seal. Several protruding support points 332 are distributed in a ring on the inner side of the outer end of the exhaust channel 331. The exhaust groove is formed between the protruding support points 332. The outer end face of the protruding support point 332 is lower than the outer end face of the convex annular surface 333.

[0057] The sealing cover 3 includes a transparent cover 31 and a sealing ring 32. The sealing ring 32 is disposed on the outer periphery of the transparent cover 31 and abuts against the opening of the storage chamber 21 to seal. The transparent cover 31 is provided with a first through hole. The handle 33 is supported on the outside of the first through hole by the upper sealing gasket 37. The bottom of the handle 33 is provided with a threaded sleeve corresponding to the periphery of the exhaust channel 331. The bottom of the transparent cover 31 is provided with a locking member 35. The locking member 35 abuts against the bottom of the transparent cover 31 by the lower sealing gasket 36. The locking member 35 is threadedly connected to the threaded sleeve. The upper sealing gasket 37, the transparent cover 31 and the lower sealing gasket 36 are pressed between the handle 33 and the locking member 35.

[0058] See Figure 6 As shown, when the storage chamber 21 is under negative pressure, the outer periphery of the bottom surface of the sealing valve plate 341 abuts against the convex ring surface 333 to form a tight seal; when manual pressure relief is required, refer to... Figure 13 As shown, when the central touch part of the sealing valve plate 341 is pressed, the sealing valve plate 341 abuts against the protruding fulcrum 332, and the periphery of the sealing valve plate 341 is raised, allowing outside air to enter the storage chamber 21 from the direction of arrow F, thus achieving air pressure balance inside and outside the storage chamber 21.

[0059] The vacuum pump 7 includes a vacuum pump 7 and a pressure switch. The vacuum pump 7 is equipped with an exhaust port and an extraction port. The exhaust port is connected to the outside. The vacuum pump 7 is electrically connected to the main control circuit board 10 through the pressure switch. The pressure switch is equipped with a pressure collection port, which is connected to the storage chamber 21 of the material bucket 2. The bottom of the material bucket 2 is equipped with an extraction port 25 and a discharge port 26, which are connected to the storage chamber 21. The extraction port 25 is connected to the extraction port. The sealing valve 8 includes a rigid support plate 83 and a silicone valve. The silicone valve sleeve 82 is fitted over the top surface of the rigid support plate 83. A connecting arm 831 is provided on one side of the rigid support plate 83. The valve switching mechanism is a valve drive motor 81. The valve drive motor 81 is connected to the connecting arm 831 and controls the lateral movement of the sealing valve 8 to cover or open the discharge port 26. The top surface of the silicone valve sleeve 82 is provided with an annular valve blade 821 corresponding to the bottom periphery of the discharge port 26. The valve blade 821 fits against the bottom periphery of the discharge port 26.

[0060] The bottom of the storage chamber 21 is provided with a positioning groove 29 corresponding to the upper periphery of the air extraction port 25. A filter screen can be provided in the positioning groove 29 to prevent feed powder from being sucked in.

[0061] Below the discharge port 26, there is also a discharge channel 121. One end of the discharge channel 121 has an open opening corresponding to the discharge port 26, and the other end of the discharge channel 121 passes through the outside of the machine base 1. Inside the machine base 1, there is also a valve locking mechanism 9 corresponding to the sealing valve 8. The valve locking mechanism 9 includes a push rod 91, a lifting drive motor 93, a motor frame 94, and a lead screw transmission pair. The lifting drive motor 93 is fixedly installed below the discharge port 26 through the motor frame 94. The push rod 91 passes through the discharge channel 121 from bottom to top and is used to press the bottom of the sealing valve 8.

[0062] The silicone valve sleeve 82 has a edging 822 on the side corresponding to the rigid support plate 83, and the bottom of the rigid support plate 83 is exposed so that the push rod 91 can contact it. Furthermore, because the push rod 91 contacts the rigid support plate 83, the rigid support plate 83 can apply pressure to the silicone valve sleeve 82, making it fit tightly against the discharge port 26.

[0063] The base 1 includes a pad 11, a body 12, and an inner liner 16. The inner liner 16 is connected between the material barrel 2 and the pad 11. The body 12 is fitted over the inner liner 16 and located between the material barrel 2 and the pad 11. A shelf is provided on the inner liner 16. The main control circuit board 10, the vacuum pump 7, the discharge drive motor 6, and the valve drive motor 81 are mounted on the shelf. The discharge channel 121 is connected to the bottom of the shelf. A perimeter 17 is provided on the shelf outside the range covered by the movement trajectory of the sealing valve 8. A funnel hole is provided at the bottom of the perimeter 17, and the funnel hole is opposite to the open opening of the discharge channel 121. The motor frame 94 is connected to the discharge channel 121.

[0064] A shaft seat sleeve 27 is provided at the bottom center of the material barrel 2. A shaft seat is provided on the shelf corresponding to the shaft seat sleeve 27. The discharge drive motor 6 is located at the bottom of the shelf and has an output shaft 61 for driving the feeding paddle 5. A positioning sleeve 161 is provided on the shelf corresponding to the output shaft 61. The top of the positioning sleeve 161 has a groove, and a sealing shaft sleeve 57 is provided in the groove. The positioning sleeve 161 is inserted into the shaft seat sleeve 27. The output shaft 61 extends into the material barrel 2 through the shaft seat sleeve 27. The top surface and inner surface of the sealing shaft sleeve 57 are respectively provided with an upper sealing blade 571 and an inner sealing blade 571. The sealing blade 572, upper sealing blade 571, and inner sealing blade 572 respectively seal against the inner top surface of the shaft seat sleeve 27 and the outer peripheral surface of the output shaft 61. The feeding paddle 5 includes a hub 51 and segmented paddles 52. Multiple segmented paddles 52 are provided and evenly distributed around the outer periphery of the hub 51. The hub 51 is hood-shaped and close to the bottom of the discharge chamber. The air extraction port 25 is located within the coverage area of ​​the hub 51, and the discharge port 26 is located within the area through which the segmented paddles 52 pass. The bottom center of the hub 51 is connected to the output shaft 61, and the top center of the hub 51 is provided with a clutch groove 53. The segmented paddles 52 are hood-shaped with open bottoms and the receiving side.

[0065] Inside the storage chamber 21, above the feeding paddle 5, there is a guide baffle 22. The guide baffle 22 is conical. The bottom of the guide baffle 22 is provided with a feeding wheel 54. The bottom of the feeding wheel 54 is provided with a clutch plug 55. The clutch plug 55 passes through the guide baffle 22 and engages with the clutch groove 53. The clutch plug 55 is provided with a retaining spring 56 on the outer bottom surface of the guide baffle 22. The bottom of the guide baffle 22 is also provided with a surrounding plate 24. The surrounding plate 24 extends toward the bottom surface of the storage chamber 21. The feeding paddle 5 is located inside the surrounding plate 24. The bottom of the guide baffle 22 is provided with a discharge port 23 above the inner side of the surrounding plate 24.

[0066] The bottom of the sealing bushing 57 is also provided with an annular deformation groove 573 to increase the plasticity of the sealing bushing 57. When a negative pressure is generated in the storage cavity 21, the sealing bushing 57 is more likely to deform and stick to the inner top surface of the bearing sleeve 27 and the outer peripheral surface of the output shaft 61, so as to achieve efficient sealing.

[0067] The inner wall of the storage cavity 21 is provided with baffles 28 above the guide plate 22 to prevent feed from sticking to the wall.

[0068] The pressure switches include a low-pressure detection pressure switch 101 and a high-pressure detection pressure switch 102. The low-pressure detection pressure switch 101 operates during vacuuming; when it detects that the internal air pressure of the storage chamber 21 is lower than a set value, it disconnects the control circuit of the vacuum pump 7. During pressure holding, when the high-pressure detection pressure switch 102 detects that the internal air pressure of the storage chamber 21 is higher than a set value, it connects the control circuit of the vacuum pump 7. An electromagnetic exhaust valve (not shown in the figure) is installed on the air path connected to the storage chamber 21, and is electrically connected to the main control circuit board 10. When the sealing valve 8 needs to be opened, the electromagnetic exhaust valve opens, allowing the storage chamber 21 to communicate with the outside and release pressure. The electromagnetic exhaust valve can be activated by user input commands, or by a sensor switch, such as activating when an animal approaches.

[0069] The vacuum pump 7's suction nozzle is connected to one port of the diverter 71 via a hose, and the other ports of the diverter 71 are connected to a pressure switch, suction port 25, etc. (such as an electromagnetic exhaust valve).

[0070] As a further embodiment, the pad 11 is equipped with a battery box 15, which supplies power to the circuit; the lower end of the discharge channel 121 is connected to a feeding trough, the outer end of which extends outward from the outside of the feeder, and a receiving tray 4 is provided below the feeding trough on the outer side of the pad 11. The feeding trough can be a single-plate feeding trough 141, with only one discharge port at its outer end, and the receiving tray 4 is located below the discharge port; or, see [link to relevant documentation]. Figure 23 As shown, the feeding trough can be a double-disc feeding trough 142. The outer end of the double-disc feeding trough 142 has two discharge ports, and a receiving plate 4 is provided below each of the two discharge ports.

[0071] The bottom edge of the pad 11 corresponding to the discharge channel 121 is provided with a locking block 111, and the receiving tray 4 is provided with a locking sleeve 41 on one side. The locking sleeve 41 is fastened to the locking block 111 so that the receiving tray 4 is connected to the pad.

[0072] The bottom of the pad 11 is also provided with a suction cup 18, which can fix or prevent slipping, and reduce the vibration and noise generated when the vacuum pump 7 is working.

[0073] A control panel 13 is also provided on one side of the seat 12, and the control panel 13 is electrically connected to the main control circuit board 10.

[0074] The lifting drive motor 93 of the valve locking mechanism 9 is connected to the connecting seat 97 via the motor frame 94. The connecting seat 97 is connected to the bottom of the discharge channel 121. The screw drive pair includes a screw 95 and a nut 96 that are threaded together. The screw 95 is driven by the lifting drive motor 93. The side wall of the nut 96 is provided with a live pin 961. The lower end of the push rod 91 is provided with a rod seat 92. The rod seat 92 has a guide arm 921 parallel to the push rod 91. The connecting seat 97 is provided with a guide groove 971 corresponding to the guide arm 921. The guide arm 921 and the guide groove 971 slide up and down in cooperation. The side of the guide arm 921 is provided with a live hole 922, which is loosely engaged with the live pin 961. With the above structure, the machining accuracy of the parts of the valve locking mechanism 9 can be reduced.

[0075] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A feeding device, comprising a storage container and a base (1), the storage container is arranged on the base (1), the storage container is provided with a discharge port (26) and a feeding paddle (5) for pushing the feed in the storage container to the discharge port (26), a sealing valve (8) is arranged at the discharge port (26), a main control circuit board (10), a vacuum pump (7), a discharge driving motor (6) and a valve switch mechanism electrically connected with the main control circuit board (10) are arranged in the base (1), the vacuum pump (7) is provided with a suction nozzle in communication with the inside of the storage container, characterized in that: The storage container is equipped with a manual venting device, which includes a venting channel (331) and a venting valve body (34). The venting channel (331) connects the inner and outer sides of the storage container. The venting valve body (34) is in relative motion with the venting channel (331). Under normal or negative pressure conditions inside the storage container, the venting valve body (34) closes the venting channel (331). The venting valve body (34) is equipped with a touch control part, which can be manually activated directly or indirectly to open the venting channel (331).

2. The feeder according to claim 1, characterized in that: The storage container includes a material bucket (2) and a sealing cover (3). The material bucket (2) is provided with a storage cavity (21). The top of the storage cavity (21) is open. The sealing cover (3) is sealed and covered with the top of the storage cavity (21). The manual exhaust device is installed on the sealing cover (3).

3. The feeder according to claim 2, characterized in that: The sealing cover (3) is provided with a handle (33), and the exhaust channel (331) is provided on the handle (33); the exhaust valve body (34) includes a sealing valve plate (341), a connecting rod (342) and a baffle (343) connected in sequence. The outer periphery of the bottom surface of the sealing valve plate (341) is used to seal against the outer periphery of the outer end of the exhaust channel (331). The inner side of the outer end of the exhaust channel (331) is provided with an exhaust groove, which is lower than the outer end face of the exhaust channel (331); the connecting rod (342) is provided in the exhaust channel (331), and the inner end of the exhaust channel (331) is also provided with an air inlet groove. The air inlet groove is connected to the inner cavity of the storage container and the exhaust channel (331). The top surface of the baffle abuts against the inner end of the exhaust channel (331); the center of the sealing valve plate (341) forms the touch part.

4. The feeder according to claim 3, characterized in that: The outer end face of the exhaust channel (331) is a convex annular surface (333). Under normal or negative pressure conditions in the storage container, the outer periphery of the bottom surface of the sealing valve plate (341) abuts against the convex annular surface (333) to seal. Several protruding support points (332) are distributed in a ring on the inner side of the outer end of the exhaust channel (331). The exhaust groove is formed between the protruding support points (332). The outer end face of the protruding support point (332) is lower than the outer end face of the convex annular surface (333).

5. The feeder according to claim 3, characterized in that: The sealing cover (3) includes a transparent cover (31) and a sealing ring (32). The sealing ring (32) is disposed on the outer periphery of the transparent cover (31) and abuts against the opening of the storage chamber (21) for sealing. The transparent cover (31) is provided with a first through hole. The handle (33) is supported on the outside of the first through hole by the upper sealing gasket (37). The bottom of the handle (33) is provided with a threaded sleeve corresponding to the periphery of the exhaust channel (331). The bottom of the transparent cover (31) is provided with a locking member (35). The locking member (35) abuts against the bottom of the transparent cover (31) by the lower sealing gasket (36). The locking member (35) is threadedly connected to the threaded sleeve. The upper sealing gasket (37), the transparent cover (31) and the lower sealing gasket (36) are pressed between the handle (33) and the locking member (35).

6. The feeder according to any one of claims 2 to 5, characterized in that: The vacuum pump (7) includes a vacuum pump (7) and a pressure switch. The vacuum pump (7) is equipped with an exhaust port and a suction port. The exhaust port is connected to the outside. The vacuum pump (7) is electrically connected to the main control circuit board (10) through the pressure switch. The pressure switch is equipped with a pressure collection port, which is connected to the storage chamber (21) of the material bucket (2). The bottom of the material bucket (2) is equipped with a suction port (25) and a discharge port (26) connected to the storage chamber (21). The suction port (25) is connected to the suction port. The sealing valve (8) includes a rigid support plate (83) and a silicone valve sleeve. (82) The silicone valve sleeve (82) is at least fitted outside the top surface of the rigid support plate (83). A connecting arm (831) is provided on one side of the rigid support plate (83). The valve switching mechanism is a valve drive motor (81). The valve drive motor (81) is connected to the connecting arm (831) and controls the lateral movement of the sealing valve (8) to cover or open the discharge port (26). The top surface of the silicone valve sleeve (82) is provided with an annular valve blade (821) corresponding to the bottom periphery of the discharge port (26). The valve blade (821) is in contact with the bottom periphery of the discharge port (26).

7. The feeder according to claim 6, characterized in that: Below the discharge port (26), there is also a discharge channel (121). One end of the discharge channel (121) has an open opening corresponding to the discharge port (26), and the other end of the discharge channel (121) passes through the outside of the machine base (1). Inside the machine base (1), there is also a valve locking mechanism (9) corresponding to the sealing valve (8). The valve locking mechanism (9) includes a top rod (91), a lifting drive motor (93), a motor frame (94), and a screw drive pair. The lifting drive motor (93) is fixedly installed below the discharge port (26) through the motor frame (94). The top rod (91) passes through the discharge channel (121) from bottom to top and is used to press the bottom of the sealing valve (8).

8. The feeder according to claim 7, characterized in that: The base (1) includes a pad (11), a seat body (12), and an inner liner (16). The inner liner (16) is connected between the material barrel (2) and the pad (11). The seat body (12) is fitted outside the inner liner (16) and located between the material barrel (2) and the pad (11). The inner liner (16) is provided with a shelf. The main control circuit board (10), vacuum pump (7), discharge drive motor (6), and valve drive motor (81) are set on the shelf. The discharge channel (121) is connected to the bottom of the shelf. The shelf is provided with a perimeter (17) outside the range covered by the movement trajectory of the sealing valve (8). The bottom of the perimeter (17) is provided with a funnel hole, which is opposite to the open opening of the discharge channel (121). The motor frame (94) is connected to the discharge channel (121).

9. The feeder according to claim 8, characterized in that: The bottom center of the material barrel (2) is provided with a bearing sleeve (27), and the shelf is provided with a bearing corresponding to the bearing sleeve (27). The discharge drive motor (6) is located at the bottom of the shelf and is provided with an output shaft (61) for driving the feeding paddle (5). The shelf is provided with a positioning sleeve (161) corresponding to the output shaft (61). The top of the positioning sleeve (161) is provided with a groove, and a sealing bushing (57) is provided in the groove. The positioning sleeve (161) is inserted into the bearing sleeve (27), and the output shaft (61) extends into the material barrel (2) through the bearing sleeve (27). The top surface and inner side surface of the sealing bushing (57) are respectively provided with an upper sealing blade (571) and an inner sealing blade. The sealing blade (572), the upper sealing blade (571) and the inner sealing blade (572) are respectively sealed to the inner top surface of the shaft seat sleeve (27) and the outer peripheral surface of the output shaft (61); the feeding paddle (5) includes a hub (51) and a segmented paddle (52). The segmented paddle (52) is provided in multiples and is evenly distributed on the outer periphery of the hub (51). The hub (51) is hood-shaped and close to the bottom of the discharge chamber. The air extraction port (25) is located within the coverage area of ​​the hub (51). The discharge port (26) is located within the area through which the segmented paddle (52) passes. The bottom center of the hub (51) is connected to the output shaft (61). The top center of the hub (51) is provided with a clutch groove (53). The material storage cavity (21) is provided with a guide plate (22) above the feeding paddle (5). The guide plate (22) is conical. The bottom of the guide plate (22) is provided with a feeding wheel (54). The bottom of the feeding wheel (54) is provided with a clutch plug (55). The clutch plug (55) passes through the guide plate (22) and engages with the clutch groove (53). The clutch plug (55) is provided with a snap ring (56) on the outer bottom surface of the guide plate (22). The bottom of the guide plate (22) is also provided with a surrounding plate (24). The surrounding plate (24) extends toward the bottom surface of the material storage cavity (21). The feeding paddle (5) is located inside the surrounding plate (24). The bottom of the guide plate (22) is provided with a discharge port (23) above the inner side of the surrounding plate (24).

10. The feeder according to claim 6, characterized in that: The pressure switch includes a low-pressure detection pressure switch (101) and a high-pressure detection pressure switch (102); and / or, an electromagnetic exhaust valve is provided on the air line connected to the storage chamber (21), and the electromagnetic exhaust valve is electrically connected to the main control circuit board (10).

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