Feeder and control method thereof

Abstract

The application discloses a feeder and a control method thereof, and relates to the technical field of food storage. The feeder comprises a mounting seat, wherein the mounting seat is provided with a grain outlet through hole, and the plane where the grain outlet through hole is located is inclined or parallel to the horizontal plane; a door body assembly, wherein the door body assembly comprises a door plate, the door plate is suitable for closing or opening the grain outlet through hole, the door plate comprises a movable side and a fixed side, and in the position where the door plate closes the grain outlet through hole, the movable side of the door plate is higher than the fixed side in the longitudinal direction or the movable side of the door plate is flush with the fixed side in the longitudinal direction; a second rotating shaft, the fixed side of the door plate is fixedly connected with the second rotating shaft, the second rotating shaft is rotationally connected with the mounting seat, and the movable side of the door plate can rotate relative to the mounting seat through the second rotating shaft; and a pressing member, the pressing member is rotationally installed on the mounting seat, the pressing member comprises a first pressing part, and the first pressing part can exert pressure on the door plate so that the gap between the door plate and the grain outlet through hole is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of food storage, and in particular to a feeder and a control method thereof. Background Art

[0002] Currently, poultry, pets, and other animals are fed using feeders. These typically include a storage chamber for feed, grain, and other food items. This chamber then discharges the food through a structure such as a grain outlet hole or a grain outlet channel. To prevent food spoilage due to moisture and other factors, a negative pressure is typically created in the chamber. This is achieved by using a door assembly to cover the corresponding grain outlet channel or grain outlet hole to maintain negative pressure within the chamber.

[0003] Related technologies use a linkage mechanism to open or close the door assembly, and utilize the linkage mechanism's dead point to secure the door assembly. However, the linkage mechanism's dead point is easily released, for example, by applying a slight lateral force. Furthermore, the seal formed by the door assembly is easily damaged, and the sealing of the door assembly needs to be improved. Summary of the Invention

[0004] The main purpose of the present invention is to overcome the defects of the prior art and provide a feeder with good sealing performance.

[0005] Another object of the present invention is to provide a control method for a feeder, which combines the design of a sealing structure with a control strategy to improve the sealing performance of the feeder.

[0006] To achieve the above-mentioned purpose, the feeder proposed in the present invention includes: a mounting seat, the mounting seat is provided with a grain outlet hole, and the plane where the grain outlet hole is located is inclined or parallel to the horizontal plane; a door body assembly, the door body assembly includes: a door panel, the door panel is suitable for closing or opening the grain outlet hole, the door panel includes a movable side and a fixed side, when the door panel closes the grain outlet hole, the movable side of the door panel is higher than the fixed side in the longitudinal direction or the movable side of the door panel is flush with the fixed side in the longitudinal direction; a second rotating shaft, the fixed side of the door panel is fixedly connected to the second rotating shaft, the second rotating shaft is rotatably connected to the mounting seat, and the movable side of the door panel can be rotated relative to the mounting seat through the second rotating shaft; a pressure piece, the pressure piece is rotatably mounted on the mounting seat, the pressure piece includes a first pressure portion, the first pressure portion can apply pressure to the door panel to reduce the gap between the door panel and the grain outlet hole.

[0007] The feeder of the present invention is configured to have a door body assembly including a door panel and a pressure member. In this way, during the closing process of the door panel, when the door panel is rotated to the vicinity of the grain outlet hole, the first pressure member applies pressure to the door panel, which helps to make the door panel reach a preset matching position with the grain outlet hole, helps to improve the abutment tightness between the door panel and the grain outlet hole, and helps to improve the sealing of the feeder.

[0008] The present invention also provides a control method for a feeder, the control method being used to control the above-mentioned feeder, wherein the door assembly includes a first position switch, and when the angle between the door panel and the plane where the food outlet hole is located is less than or equal to a first preset angle, the first position switch generates first position information; the control method includes the following steps:

[0009] Obtaining a door closing instruction and controlling the door panel to move toward the direction close to the grain discharge hole;

[0010] In response to the first position information, the first pressure applying portion is controlled to apply pressure to the door panel.

[0011] The control method of the feeder of the present invention, combined with the structural design of the feeder, starts the first pressure-applying part to apply pressure to the door panel when the angle between the door panel and the plane where the grain outlet hole is located is less than or equal to a first preset angle, so that the gap between the door panel and the grain outlet hole is reduced, which not only improves the sealing of the feeder but also ensures the stability and predictability of the feeder operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0013] Figure 1 This is a perspective view of an embodiment of a feeder of the present invention.

[0014] Figure 2 This is a schematic diagram of the coordination between the door assembly and the food outlet hole in one embodiment of the feeder of the present invention.

[0015] Figure 3 This is a three-dimensional diagram of an embodiment of the feeder of the present invention viewed from a bottom angle (partial structure is hidden).

[0016] Figure 4 for Figure 3 A partial enlarged view of the M point in the middle.

[0017] Figure 5 This is a schematic diagram of the cooperation between the door assembly and the food outlet hole in another state in one embodiment of the feeder of the present invention.

[0018] Figure 6 This is a three-dimensional diagram of a door assembly in one embodiment of the present invention (partial structure is hidden).

[0019] Figure 7 2 is a cross-sectional view of a door assembly according to an embodiment of the present invention.

[0020] Figure 8 This is a perspective view of an embodiment of a feeder of the present invention.

[0021] Figure 9 This is a partial schematic diagram of the barrel body of an embodiment of the feeder of the present invention.

[0022] Figure 10 2 is a cross-sectional view of an embodiment of a feeder of the present invention.

[0023] Figure 11 for Figure 10 A partial enlarged view of point A in the middle.

[0024] Figure 12 Schematic diagram of the transverse pull plate in another state in one embodiment of the feeder of the present invention.

[0025] Figure 13 Schematic diagram of the installation of the transverse pull plate in one embodiment of the present invention.

[0026] Figure 14 for Figure 13 A partial enlarged view of point B in the middle.

[0027] Figure 15 Schematic diagram of the installation of the cover body panel in one embodiment of the sealing cover of the present invention.

[0028] Figure 16 Schematic diagram of the installation of the second cover plate in one embodiment of the sealing cover of the present invention.

[0029] Figure 17 This is a perspective view of an embodiment of a feeder of the present invention.

[0030] Figure 18 This is a cross-sectional view of an embodiment of the feeder of the present invention (partial structure is hidden).

[0031] Figure 19 for Figure 18 A partial enlarged view of point C in the middle.

[0032] Figure 20 This is a three-dimensional diagram of an embodiment of the feeder of the present invention viewed from a bottom angle (partial structure is hidden).

[0033] Figure 21 This is a schematic diagram of the installation of the barrel body in one embodiment of the feeder of the present invention.

[0034] Figure 22 This is a schematic diagram of the installation of the body of an embodiment of the feeder of the present invention.

[0035] Figure 23 This is a partial installation view of the body of an embodiment of the feeder of the present invention (partial structure is hidden).

[0036] Figure 24 This is a partial schematic diagram of an embodiment of the feeder of the present invention from a bottom-up perspective (partial structure is hidden).

[0037] Figure 25 A bottom view of an embodiment of a feeder of the present invention.

[0038] Figure 26 FIG1 is a bottom view of an embodiment of the feeder of the present invention in another state.

[0039] Figure 27 for Figure 25 Cross-sectional view at the middle position DD.

[0040] Figure 28 This is an exploded view of an embodiment of a feeder of the present invention.

[0041] Figure 29 for Figure 28 A partial enlarged view of position F in the middle.

[0042] Figure 30 This is an exploded view of an embodiment of the feeder of the present invention when viewed from above.

[0043] Figure 31 for Figure 25 Cross-sectional view at position EE.

[0044] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0046] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] Related technologies use a linkage mechanism to open or close the door assembly, and utilize the linkage mechanism's dead point to secure the door assembly. However, the linkage mechanism's dead point is easily disengaged, for example, by applying a slight lateral force. Furthermore, the seal formed by the door assembly is easily damaged, and the sealing stability of the door assembly needs to be improved.

[0049] Therefore, the present invention provides a feeder to improve the sealing stability of the door assembly therein.

[0050] Reference Figure 1 and Figure 2 In one embodiment of the present invention, the feeder includes a mounting base 3510 and a door assembly 3300. The mounting base 3510 is provided with a grain outlet hole 2021. The plane where the grain outlet hole 2021 is located is inclined or parallel to the horizontal plane; wherein the horizontal plane refers to the plane where the feeder is normally placed, such as the ground, a countertop or a tabletop. Figure 2 The door body assembly 3300 includes a door panel 3310 and a pressure member. The door panel 3310 is suitable for closing or opening the grain outlet hole 2021. The door panel 3310 includes a movable side and a fixed side. When the door panel 3310 closes the grain outlet hole 2021, the movable side of the door panel 3310 is higher than the fixed side in the longitudinal direction or the movable side of the door panel 3310 is flush with the fixed side in the longitudinal direction; the fixed side of the door panel 3310 is fixedly connected to the second rotating shaft 3312, and the second rotating shaft 3312 is rotatably connected to the mounting seat 3510. The movable side of the door panel 3310 can rotate relative to the mounting seat 3510 through the second rotating shaft 3312

[0051] The pressure member is rotatably mounted on the mounting base 3510 and includes a first pressure portion 3331. The first pressure portion 3331 can apply pressure to the door panel 3310 to reduce the gap between the door panel 3310 and the grain outlet hole 2021, thereby improving the contact tightness between the outer peripheral wall of the boss portion 3320 and the inner peripheral wall of the grain outlet hole 2021. The feeder can also be configured to include a barrel body 2000, which defines a receiving cavity 2001, so that food can be received in the receiving cavity and discharged through the receiving cavity 2001 to communicate with the grain outlet hole 2021. In addition, the feeder can also be provided with a grain outlet channel 3200 and a food bowl 4000. The grain outlet channel 3200 is connected to the grain outlet through hole 2021, and the outlet of the grain outlet channel 3200 is arranged opposite to the food bowl 4000, so that the food passes through the grain outlet through hole 2021 and the grain outlet channel 3200 in sequence and reaches the food bowl 4000. The feeder guides the flow of food through the grain outlet channel 3200, which can reduce the degree of dispersion of the food after it is output. Of course, the feeder can also be provided without a grain outlet channel 3200, but directly output the food into the food bowl 4000 through the grain outlet through hole 2021. Among them, the door panel 3310 can be provided in the grain outlet channel 3200 to improve the overall structural compactness of the feeder. It should be noted that the door panel 3310 can also be provided at the outlet of the grain outlet channel 3200, and this embodiment is not limited to this.

[0052] Reference Figure 2 As shown, one side of the door panel 3310 is rotatably mounted on the mounting seat 3510, and the door panel 3310 is provided with a boss portion 3320, the outer peripheral wall of the boss portion 3320 is suitable for abutting the inner peripheral wall of the grain outlet hole 2021, thereby performing an interference fit or other tight fit through abutment.

[0053] In this embodiment, the door body assembly 3300 is configured to include a door panel 3310 and a pressure member. In this way, during the closing process of the door panel 3310, after the door panel 3310 is pivoted to the point where the outer peripheral wall of the boss portion 3320 is close to or abuts against the inner peripheral wall of the grain outlet hole 2021, the first pressure portion 3331 applies pressure to the door panel 3310. This is beneficial for the door panel 3310 and the boss portion 3320 to reach a preset matching position with the grain outlet hole 2021, which is beneficial for improving the abutment tightness between the door panel 3310 and the grain outlet hole 2021, and is beneficial for improving the sealing stability of the door body assembly 3300.

[0054] In some embodiments, the first pressure portion 3331 may be configured to abut against the other side of the door plate 3310 relative to the rotationally connected side, so as to move the door plate 3310 toward the grain outlet hole 2021; for example, Figure 2The right side of the door panel 3310 is the side that is rotatably connected to the mounting seat 3510, and the left side of the door panel 3310 is abutted by the first pressure portion 3331. Since one side of the door panel 3310 is rotatably connected to the mounting seat 3510, for example, by a pivot connection, the restriction on the pivoting of the door panel 3310 can be released when the first pressure portion 3331 is configured to be movable outside the pivoting envelope of the door panel 3310; alternatively, the first pressure portion 3331 can be configured with a larger range of movement to prevent the first pressure portion 3331 from excessively restricting the opening range of the door panel 3310, so that the door panel 3310 can reach a predetermined opening.

[0055] In this embodiment, the first pressure portion 3331 abuts against the other side of the door panel 3310 relative to the rotating connection side, and the applied torque is greater. Under the same magnitude of force, it is more conducive to improving the abutment tightness between the boss portion 3320 and the grain outlet hole 2021, which is beneficial to improving the sealing stability of the door body assembly 3300.

[0056] Specifically, the door body assembly 3300 can be configured to include a second rotating shaft 3312, which is rotatably connected to the mounting seat 3510, and the first rotating shaft 3334 and the second rotating shaft 3312 are arranged on opposite sides of the grain outlet hole 2021, and the first rotating shaft 3334 corresponds to the rotating connection side of the door panel 3310 and the mounting seat 3510.

[0057] In some embodiments, the pressure member further includes a second pressure portion, which can apply pressure to the door panel 3310 to increase the gap between the door panel 3310 and the grain outlet hole 2021. For example, the second pressure portion can be configured to abut the surface of the door panel 3310 facing the boss portion 3320, causing the door panel 3310 to move away from the grain outlet hole 2021. This reduces the tightness of the abutment between the boss portion 3320 and the grain outlet hole 2021, increasing the gap between the door panel 3310 and the grain outlet hole 2021, causing the door panel 3310 to tilt, making subsequent rotation and opening of the door panel 3310 easier. Correspondingly, the first pressure portion 3331 is configured to abut the surface of the door panel 3310 facing away from the boss portion 3320, causing the door panel 3310 to move toward the grain outlet hole 2021, thereby reducing the gap between the door panel 3310 and the grain outlet hole 2021.

[0058] Among them, reference Figure 3 、 Figure 4 The pressure member can also be configured to include a first rotating shaft 3334, which is rotatably connected to the mounting seat 3510. The first pressure portion 3331 and the second pressure portion can be disposed on the outer peripheral wall of the first rotating shaft 3334. Figure 5 、 Figure 6The second pressure-applying portion may include a second pressure strip 3332 and a third pressure strip 3333. The second pressure strip 3332 and the third pressure strip 3333 are spaced apart along the axial direction of the first rotating shaft 3334. The second pressure strip 3332 and the third pressure strip 3333 may be disposed on the same generatrix of the outer peripheral wall of the first rotating shaft 3334. The second pressure strip 3332 and the third pressure strip 3333 are configured to abut the door panel 3310, thereby assisting in opening the door panel 3310. The second pressure strip 3332 and the third pressure strip 3333 are spaced apart along the axial direction of the first rotating shaft 3334. The second pressure strip 3332 and the third pressure strip 3333 can act on two spaced apart positions on the door panel 3310. For example, the second pressure strip 3332 and the third pressure strip 3333 respectively abut two corners of the door panel 3310. After the two spaced locations of the door panel 3310 are abutted, the planar surface of the door panel 3310 will slightly warp and deform, driving the outer peripheral wall of the boss portion 3320 to undergo corresponding warping and deformation. This allows the outer peripheral wall of the boss portion 3320 to initially reduce the degree of contact between the outer peripheral wall of the boss portion 3320 and the inner peripheral wall of the grain outlet through-hole 2021, and then reduces the degree of contact at other locations. This helps reduce the force required to open the door panel 3310 and facilitates the opening of the door assembly 3300. If there is residual negative pressure within the accommodating chamber 2001, the corresponding warping and deformation of the outer peripheral wall of the boss portion 3320 can also help to more quickly relieve the negative pressure, thereby further facilitating the opening of the door assembly 3300.

[0059] In some embodiments, reference Figure 5 、 Figure 6 The second bead 3332 is L-shaped, with one end of the L connected to the first rotation axis 3334 and the other end extending away from the first rotation axis 3334. The second bead 3332 is adapted to abut against the surface of the door panel 3310 near the boss portion 3320 to cause the door panel 3310 to sink. The L-shape of the second bead 3332 can reduce the risk of interfering with the rotation of the door panel 3310 and improve the smoothness of the rotation of the door panel 3310. The second bead 3332 can be configured to include a longitudinally extending section and a transversely extending section connected to form an L-shape. In which, the longitudinal extension section can be set to extend along the radial direction of the first rotating shaft 3334 and be connected to the first rotating shaft 3334, and the transverse extension section is connected to the end of the longitudinal extension section facing away from the first rotating shaft 3334. The transverse extension section is used to move into the gap between the grain outlet hole 2021 and the plate surface of the door panel 3310 close to the boss portion 3320, so that the plate surface of the door panel 3310 close to the boss portion 3320 is abutted by the transverse extension section, thereby increasing the gap between the door panel 3310 and the grain outlet hole 2021 while reducing interference with the rotation of the door panel 3310.

[0060] In addition, the first pressure part 3331 can be configured to be fixedly connected to the second pressure part. For example, the first pressure part 3331 is directly fixedly connected to the second pressure part, or the first pressure part 3331 is fixedly connected to the second pressure part via an intermediate connection structure such as the first rotating shaft 3334. The first pressure part 3331 and the second pressure part can also be configured to be fixedly connected to the outer peripheral wall of the first rotating shaft 3334, for example, the first pressure part 3331, the second pressure part and the first rotating shaft 3334 are configured to be integrally formed, or the first pressure part 3331 and the second pressure part are fixed to the first rotating shaft 3334 using bolt connection, slot connection, snap connection, etc., which is not limited in this embodiment. The first pressure portion 3331 and the second pressure portion can be spaced apart in the circumferential direction of the first rotating shaft 3334, thereby forming a circumferential angle. Then, when the first rotating shaft 3334 is in the position where the first pressure portion 3331 abuts against the door panel 3310, the second pressure portion acts on the door panel 3310 only after the first rotating shaft 3334 continues to rotate a certain angle, thereby reducing the risk of the first pressure portion 3331 and the second pressure portion acting on the door panel 3310 at the same time, and reducing the risk of the door body assembly 3300 accidentally opening when it needs to be closed or being stuck and blocked when it needs to be opened.

[0061] Among them, reference Figure 5 、 Figure 6 The first pressure-applying portion 3331 includes a first pressure strip, which extends axially along the first rotating shaft 3334, thereby forming a rectangular shape extending axially along the first rotating shaft 3334. The first pressure strip is adapted to abut against the surface of the door panel 3310 facing away from the boss portion 3320 to lift the door panel 3310. In this embodiment, the first pressure strip can be used to abut against the surface of the door panel 3310 facing away from the boss portion 3320, thereby moving the door panel 3310 toward the grain outlet hole 2021, thereby assisting in closing the door panel 3310. Before closing the door panel 3310, the grain outlet hole 2021 is open, and the interior of the accommodating chamber 2001 is at normal pressure or slightly negative pressure due to the early activation of a vacuum pump, such as a vacuum pump. Consequently, the resistance to closing the door panel 3310 is minimal. The first pressure strip is extended along the axial direction of the first rotating shaft 3334. The first pressure strip is a rectangle extending along the axial direction of the first rotating shaft 3334. It can increase the area of ​​action with the door panel 3310, so that the door body assembly 3300 can close the grain outlet hole 2021 more smoothly, reduce the size of the local action of the door body assembly 3300 when cooperating with the grain outlet hole 2021, and reduce the risk of damage to the door body assembly 3300.

[0062] In some embodiments, reference Figure 5 、 Figure 6The boss portion 3320 includes a boss body 3321 and an elastic cap 3322. The boss body 3321 can be integrally formed with the door panel 3310, and the elastic cap 3322 can be made of an elastic plastic material. The elastic cap 3322 is sleeved onto the boss body 3321, and the outer peripheral wall of the elastic cap 3322 is adapted to abut against the inner peripheral wall of the grain outlet hole 2021. In this embodiment, the elastic cap 3322 utilizes its own elasticity to form a tight fit with the inner peripheral wall of the grain outlet hole 2021, thereby improving the stability of the tight fit between the outer peripheral wall of the elastic cap 3322 and the inner peripheral wall of the grain outlet hole 2021, further improving the stability of the door assembly 3300 in sealing the grain outlet hole 2021.

[0063] In some embodiments, reference Figure 6 、 Figure 7 An elastic ring plate 3323 is provided on the outer peripheral wall of the elastic cap 3322, and the elastic ring plate 3323 extends along the circumferential direction of the elastic cap 3322. When the door assembly 3300 is closed, the elastic ring plate 3323 can be folded when abutted. The elastic force generated by the folding further improves the stability of the tight fit between the elastic ring plate 3323 and the inner peripheral wall of the grain outlet hole 2021, further improving the stability of the door assembly 3300 in sealing the grain outlet hole 2021.

[0064] In some embodiments, reference Figure 5 The outer peripheral wall of the elastic cap 3322 is tilted, and the area of ​​the top cross section of the elastic cap 3322 is smaller than the area of ​​the bottom cross section of the elastic cap 3322, so that the boss portion 3320 can more easily enter the grain outlet hole 2021. Correspondingly, the inner peripheral wall of the grain outlet hole 2021 can also be tilted, and the diameter of the grain outlet hole 2021 increases in the direction away from the accommodating cavity 2001. The angle between the plate surface of the elastic ring plate 3323 and the bottom outer peripheral wall of the elastic cap 3322 is less than 90 degrees (this angle can be referred to Figure 7 In this embodiment, when the door assembly 3300 is closed, the elastic ring plate 3323 is more likely to fall backward, thereby forming a barbed shape when fully closed. This increases the resistance to opening the door assembly 3300 and further improves the stability of the door assembly 3300 in sealing the grain outlet opening 2021. At least two elastic ring plates 3323 may be provided on the outer peripheral wall of the elastic cap 3322, spaced apart along the height of the elastic cap 3322, to further increase the resistance to opening the door assembly 3300 and further improve the stability of the door assembly 3300 in sealing the grain outlet opening 2021.

[0065] Reference Figure 7To improve the stability of the elastic cap 3322 when it is mounted on the boss body 3321, a connecting through-hole 3311 can be provided on the door panel 3310. A connecting post 3324 and an abutment block 3325 are provided at the bottom of the elastic cap 3322. The abutment block 3325 is disposed on the side of the door panel 3310 facing away from the elastic cap 3322. The connecting post 3324 passes through the connecting through-hole 3311 and connects to the abutment block 3325. The abutment block 3325 abuts against the door panel 3310, thereby better preventing the elastic cap 3322 from falling off. The elastic cap 3322, the elastic ring plate 3323, the connecting post 3324, and the abutment block 3325 can be integrally formed on the door panel 3310 using a rubber coating process or other methods. Of course, the elastic cap 3322, the elastic ring plate 3323, the connecting column 3324 and the abutting block 3325 can also be integrally formed first, and then the abutting block 3325 can be squeezed through the connecting through hole 3311 by utilizing its elasticity. This embodiment does not limit this.

[0066] In some embodiments, the door assembly 3300 further includes a pressure-applying drive device 3341, which drives the pressure member to rotate via a first rotating shaft 3334. The door assembly 3300 further includes a door-applying drive device 3342, which drives the door panel 3310 to rotate via a second rotating shaft 3312. The pressure-applying drive device 3341 can be configured to be connected to the first pressure member 3331. The pressure-applying drive device 3341 can be directly connected to the first pressure member 3331, or connected to the first pressure member 3331 via an intermediate connection structure of the first rotating shaft 3334. Because the first pressure member 3331 and the second pressure member are fixedly connected, the pressure-applying drive device 3341 can be used to drive either the first pressure member 3331 or the second pressure member to abut against the door panel 3310. The door drive device 3342 can be configured to be connected to the door panel 3310, for example, by being connected to the door panel 3310 via the second rotating shaft 3312, thereby driving the door panel 3310 to pivot. The pressure drive device 3341 and the door drive device 3342 can be configured to be drive motors, drive cylinders, drive hydraulic cylinders, etc., which are not limited in this embodiment. If necessary, a transmission mechanism or an intermediate connecting structure can be added between the pressure drive device 3341 and the first pressure portion 3331 or the second pressure portion, or between the door drive device 3342 and the door panel 3310. In this embodiment, the pressure drive device 3341 and the door drive device 3342 can be driven independently; for example, since the pressure drive device 3341 needs to press the door assembly 3300 tightly, a drive current, air pressure, or hydraulic pressure greater than that of the door drive device 3342 can be supplied to the pressure drive device 3341. Thus, both the pressure drive 3341 and the door drive 3342 can be selected from models with a smaller power range and application range, which helps reduce the cost of the pressure drive 3341 and the door drive 3342. In addition, the pressure drive 3341 and the door drive 3342 can be driven independently, which also reduces the need for intermediate transmission structures and facilitates the miniaturization of the feeder.

[0067] In some embodiments, the door assembly 3300 can be configured to include a first position switch 3351, which is used to detect the pivot angle of the door panel 3310. The first position switch 3351 can be configured to be electrically connected to the pressure drive device 3341. The first position switch 3351 can be configured as a limit switch, a travel switch, a photoelectric sensor, a laser rangefinder, or an encoder corresponding to the drive motor, etc., and this embodiment is not limited to this. When the angle between the surface of the door panel 3310 facing the boss portion 3320 and the plane of the grain discharge hole 2021 is less than or equal to a first preset angle, the first position switch 3351 generates first position information, and the pressure drive device 3341 drives the first pressure portion 3331 to apply pressure to the door panel 3310 in response to the first position information. In this embodiment, when the door body assembly 3300 pivots close to or abuts against the grain outlet hole 2021, the first position information is used to connect the abutting action of the first pressure part 3331 on the door panel 3310, thereby reducing the waiting time of the first pressure part 3331 during the closing process of the door body assembly 3300, which is beneficial to improving the closing efficiency of the door body assembly 3300.

[0068] In some embodiments, the door assembly 3300 may further include a second position switch 3353. Since the first pressure portion 3331 and the second pressure portion are fixedly connected, the second position switch 3353 can be used to detect the position of either the first pressure portion 3331 or the second pressure portion, thereby calculating the position of the other. The second position switch 3353 can be configured as a limit switch, a travel switch, a photoelectric sensor, a laser rangefinder, or an encoder corresponding to the drive motor, although this embodiment is not limited thereto. The second position switch 3353 can be electrically connected to the pressure drive device 3341. When the first pressure portion 3331 abuts the door panel 3310 and moves to a predetermined position, i.e., when the outer peripheral wall of the boss portion 3320 abuts the inner peripheral wall of the grain discharge hole 2021 to a certain degree, the second position switch 3353 generates second position information, and the pressure drive device 3341 ceases movement and power output based on this second position information. In this embodiment, after the outer peripheral wall of the boss portion 3320 and the inner peripheral wall of the grain outlet hole 2021 reach the required mating position, the pressure drive device 3341 can stop moving and stop power output according to the second position information, thereby reducing the power consumption of the pressure drive device 3341.

[0069] Furthermore, the first position switch 3351 can also be configured to be electrically connected to the door drive device 3342. When the angle between the surface of the door panel 3310 facing the boss portion 3320 and the plane containing the grain discharge hole 2021 is greater than a first predetermined angle, the first position switch 3351 generates fourth position information, and the door drive device 3342 drives the door panel 3310 away from the grain discharge hole 2021 based on the fourth position information. In this embodiment, when the door assembly 3300 is opened to a predetermined opening, pressed against the grain discharge hole 2021, the interaction force between the door assembly 3300 and the grain discharge hole 2021 is relatively small. At this time, the door drive device 3342 switches to driving the door panel 3310 away from the grain discharge hole 2021 based on the fourth position information, thereby conserving the power output of the higher-power pressure drive device 3341. In this embodiment, in the two different stages of releasing the tight fit of the door body assembly 3300 and allowing the door body assembly to continue opening, the waiting time for switching between the pressure drive device 3341 and the door body drive device 3342 is short, which is beneficial to improving the opening efficiency of the door body assembly 3300.

[0070] In some embodiments, the door assembly 3300 may further include a third position switch 3352. When the angle between the surface of the door panel 3310 facing the boss portion 3320 and the plane where the grain discharge hole 2021 is located is greater than or equal to a second preset angle, the third position switch 3352 generates third position information; wherein the second preset angle is greater than the first preset angle. The third position switch 3352 can be configured to be electrically connected to the door drive device 3342. When the angle between the surface of the door panel 3310 facing the boss portion 3320 and the plane where the grain discharge hole 2021 is located is greater than or equal to the second preset angle, the door drive device 3342 stops power output according to the third door position signal. In this embodiment, the door drive device 3342 can stop power output after the door panel 3310 is opened to the required larger opening, reducing energy loss of the door drive device 3342.

[0071] Among them, reference Figure 4The wall surrounding the second rotating shaft 3312 may be provided with a first protrusion 3313 adapted to trigger the first position switch 3351 and the third position switch 3352. The door panel 3310, the first protrusion 3313, and the second rotating shaft 3312 may be integrally formed using a process such as injection molding or metal casting. When the angle between the surface of the door panel 3310 facing the boss portion 3320 and the plane of the grain discharging hole 2021 is less than or equal to a first predetermined angle, the first protrusion 3313 abuts the first position switch 3351, generating the first position information. When the angle between the surface of the door panel 3310 facing the boss portion 3320 and the plane of the grain discharging hole 2021 is greater than the first predetermined angle, the first protrusion 3313 disengages the first position switch 3351, generating the fourth position information. The first position switch 3351 reduces installation space and enhances the compactness of the feeder. The installation space occupied by the third position switch 3352 is also relatively small, which is also beneficial to reducing the volume of the feeder.

[0072] Furthermore, a second protrusion 3335 is provided on the periphery of the first rotating shaft 3334, adapted to trigger the second position switch 3353. The first rotating shaft 3334 and the second protrusion 3335 can be integrally formed using a process such as injection molding or metal casting. When the first pressure-applying portion 3331 abuts the door panel 3310 and moves to a predetermined position, the second protrusion 3335 abuts the second position switch 3353, which then generates the aforementioned second position information. This second position switch 3353 reduces installation space and enhances the compactness of the feeder.

[0073] Reference Figure 3 , the feeder can also be configured to include a vacuum pump 3361. The feeder also includes a first through hole 3371 connected to the accommodating chamber 2001, and the vacuum pump 3361 is connected to the first through hole 3371 via an exhaust pipe 3381. The second position switch 3353 is electrically connected to the vacuum pump 3361, and the vacuum pump 3361 is used to start according to the above-mentioned second position information. In this embodiment, since the second position information is generated when the first pressure portion 3331 abuts the door panel 3310 and moves to a preset position, the vacuum pump 3361 can be started after the door body assembly 3300 is closed in place to perform vacuuming, which reduces the waiting time for the vacuuming action and improves the efficiency of vacuuming.

[0074] The feeder can also include a negative pressure switch 3363, which can be an electronic pressure switch. The feeder also includes a third through-hole 3373 connected to the accommodating chamber 2001. The negative pressure switch 3363 is connected to the third through-hole 3373 via a negative pressure tube 3383. The negative pressure switch 3363 can be electrically connected to the vacuum pump 3361. When the vacuum level within the accommodating chamber 2001 is greater than or equal to a first predetermined vacuum level, the negative pressure switch 3363 outputs a first pressure signal, and the vacuum pump 3361 stops according to the first pressure signal, thereby reducing power consumption of the vacuum pump 3361.

[0075] The feeder can also be configured to include a solenoid valve 3362 and a second through-hole 3372 communicating with the accommodating chamber 2001. The solenoid valve 3362 is connected to the second through-hole 3372 via an air inlet pipe 3382. The solenoid valve 3362 is used to connect or isolate the accommodating chamber 2001 from the outside world, thereby enabling the solenoid valve 3362 to release or maintain the negative pressure in the accommodating chamber 2001. A negative pressure switch 3363 can be electrically connected to a pressure drive device 3341. When the vacuum level within the accommodating chamber 2001 is less than or equal to a second predetermined vacuum level, the negative pressure switch 3363 outputs a second pressure signal; the second predetermined vacuum level is lower than the first predetermined vacuum level. In response to the door opening command and the second pressure signal, the pressure drive device 3341 drives the second pressure portion to abut against the door panel 3310, thereby tilting the door panel 3310 upwards to facilitate subsequent opening of the door panel 3310. The pressure driving device 3341 drives the second pressure part to abut the door panel 3310 according to the door opening instruction and the second pressure signal, which can not only reduce the connection time of the door opening action, but also avoid accidental opening through the combination of the door opening instruction and the second pressure signal (for example, when the accommodating cavity 2001 is damaged and leaks to a vacuum degree less than or equal to the second preset vacuum degree, the door body assembly 3300 can avoid accidental opening in the absence of a door opening instruction).

[0076] Among them, the feeder includes a barrel body 2000 and a vacuum pump 3361. The barrel body 2000 is installed on the mounting seat 3510. The barrel body 2000 defines a receiving cavity 2001 for storing food. The food outlet hole is connected to the receiving cavity 2001, and the vacuum pump 3361 is connected to the receiving cavity 2001.

[0077] Among them, the feeder can also be configured to include an electronic control board, and the vacuum pump 3361, the negative pressure switch 3363, the solenoid valve 3362, the first position switch 3351, the second position switch 3353, the third position switch 3352, the pressure drive device 3341 and the door drive device 3342 are respectively electrically connected to the electronic control board, thereby reducing the total length of the connecting wires of the feeder through the electronic control board and improving the space utilization of the feeder.

[0078] The present invention further provides a control method for a feeder. The control method is used to control the feeder described above. The door assembly 3300 includes a first position switch 3351. When the angle between the door panel 3310 and the plane where the food outlet hole 2021 is located is less than or equal to a first preset angle, the first position switch 3351 generates first position information. The control method includes the following steps:

[0079] Obtain a door closing instruction and control the door panel 3310 to move toward the direction close to the grain outlet hole 2021; for example, the door body driving device 3342 drives the second rotating shaft 3312 to rotate, thereby moving the door panel 3310 toward the direction close to the grain outlet hole 2021;

[0080] In response to the first position information, the first pressure applying portion 3331 is controlled to apply pressure to the door panel 3310 ; for example, the first pressure applying portion 3331 is driven by the pressure driving device 3341 to apply pressure to the door panel 3310 .

[0081] In this embodiment, during the closing process of the door panel 3310, when the door panel 3310 is pivoted to the vicinity of the grain outlet hole 2021 (when the angle between the door panel 3310 and the plane where the grain outlet hole 2021 is located is less than or equal to the first preset angle), the first pressure-applying part 3331 applies pressure to the door panel 3310, which helps to make the door panel reach the preset matching position with the grain outlet hole 2021, helps to improve the abutment tightness between the door panel 3310 and the grain outlet hole 2021, and helps to improve the sealing stability of the door body assembly 3300.

[0082] In this embodiment, the door panel 3310 is provided with a boss portion 3320, the outer peripheral wall of which is adapted to abut the inner peripheral wall of the grain outlet hole 2021. The angle between the door panel 3310 and the plane containing the grain outlet hole 2021 can be: the angle between the surface of the door panel 3310 facing the boss portion 3320 and the plane containing the grain outlet hole 2021. The door assembly 3300 also includes a second position switch 3353. When the first pressure portion 3331 reaches a preset position, the second position switch 3353 generates second position information. The control method further includes:

[0083] After the step of “controlling the first pressure applying portion to apply pressure to the door panel in response to the first position information”;

[0084] In response to the second position information, the first pressing portion 3331 is controlled to stop moving, for example, by stopping driving the first pressing portion 3331 via the pressure driving device 3341 .

[0085] In this embodiment, during the closing process of the door panel 3310, the first pressure portion 3331 applies pressure to the door panel 3310 so that the door panel 3310 and the grain outlet hole 2021 are in place, and then the movement of the first pressure portion 3331 is stopped, which can reduce the loss and interference of the device and enhance the stability of the equipment.

[0086] In some embodiments, the pressure member further includes a second pressure portion, which can apply pressure to the door panel 3310 to increase the gap between the door panel 3310 and the grain outlet hole 2021; the door body assembly 3300 includes a third position switch 3352, which generates third position information when the angle between the door panel 3310 and the plane where the grain outlet hole 2021 is located is greater than or equal to a second preset angle, and the second preset angle is greater than the first preset angle. The control method includes the following steps:

[0087] Obtaining a door opening instruction, controlling the second pressure applying portion to apply pressure to the door panel 3310; for example, the pressure driving device 3341 drives the second pressure applying portion to apply pressure to the door panel 3310, so as to increase the gap between the door panel 3310 and the grain outlet hole 2021;

[0088] Control the door panel 3310 to move in a direction away from the grain outlet hole 2021 ; for example, by driving the second rotating shaft 3312 to rotate through the door body driving device 3342 , thereby moving the door panel 3310 in a direction away from the grain outlet hole 2021 ;

[0089] In response to the third position information, the door panel 3310 is controlled to stop moving, for example, the door body driving device 3342 is stopped.

[0090] In this embodiment, during the opening process of the door panel 3310 , the second pressure portion applies pressure to the door panel 3310 to tilt the door panel 3310 , making it easier to subsequently rotate and open the door panel 3310 .

[0091] In particular, the feeder is equipped with a vacuum pump 3361. After the door panel 3310 is closed, when the vacuum pump 3361 is used to evacuate the grain storage bin, the second pressure-applying portion significantly assists in opening the door panel 3310. At this time, the grain storage bin is under negative pressure, making it difficult to open the door panel. In this embodiment, the second pressure-applying portion applies downward pressure to the door panel 3310, thereby reducing the operating difficulty of the door drive device 3342.

[0092] It is understandable that even if the feeder does not have a vacuum pump, negative pressure may sometimes form in the sealed grain storage bin, making the door difficult to open. In this case, the structure and control method of this embodiment can also be used to reduce the operating difficulty of the door drive device and improve its stability and efficiency.

[0093] In this embodiment, the door panel 3310 is provided with a boss portion 3320, the outer peripheral wall of which is adapted to abut the inner peripheral wall of the grain outlet hole 2021. The angle between the door panel 3310 and the plane containing the grain outlet hole 2021 can be: the angle between the surface of the door panel 3310 facing the boss portion 3320 and the plane containing the grain outlet hole 2021.

[0094] Among them, when the door assembly 3300 of the feeder is closed, the door driving device 3342 can drive the door panel 3310 from a position with a larger opening (for example, the angle between the corresponding door panel 3310 and the plane where the grain outlet hole 2021 is located is greater than or equal to the second preset angle, and the first protrusion 3313 abuts the third position switch 3352) according to the door closing instruction, and close to a position with a smaller opening (for example, the angle between the corresponding door panel 3310 and the plane where the grain outlet hole 2021 is located is less than or equal to the first preset angle, and the first protrusion 3313 abuts the first position switch 3351).

[0095] When the door panel 3310 is closed to the position with a smaller opening, the above-mentioned first position switch 3351 generates first position information, and the pressure driving device 3341 drives the first pressure part 3331 to press against the door panel 3310 according to the first position information, further reducing the opening of the door panel 3310 and pressing the door body assembly 3300 into place.

[0096] It is understood that the door panel 3310 is provided with a boss portion 3320, the outer peripheral wall of which is adapted to abut the inner peripheral wall of the grain outlet hole 2021. At this point, the position where the door assembly 3300 is abutted corresponds to the position where the outer peripheral wall of the boss portion 3320 abuts the inner peripheral wall of the grain outlet hole 2021.

[0097] After the door body assembly 3300 is pressed into place (for example, the first pressure portion 3331 presses against the door panel 3310 and moves to the preset position, and the second protrusion 3335 presses against the second position switch 3353), the second position switch 3353 generates second position information, and the pressure drive device 3341 stops power output according to the second position information, thereby completing the closing of the door body assembly 3300.

[0098] After the door assembly 3300 is completely closed, the accommodating chamber 2001 can be evacuated according to the above-mentioned second position information (for example, by starting the vacuum pump 3361), and at the same time, the solenoid valve 3362 can isolate the accommodating chamber 2001 from the outside world according to the second position information; when the vacuum degree in the accommodating chamber 2001 is greater than or equal to the first preset vacuum degree, the negative pressure switch 3363 outputs a first pressure signal, and the vacuum pump 3361 stops according to the first pressure signal, completing the vacuuming action of the accommodating chamber 2001.

[0099] When it is necessary to open the door assembly 3300, the accommodating chamber 2001 can be connected to the outside world according to the door opening command (for example, by switching the solenoid valve 3362 to the passage state), thereby relieving the negative pressure in the accommodating chamber 2001. When the vacuum level in the accommodating chamber 2001 is less than or equal to the second preset vacuum level (the second preset vacuum level is less than the first preset vacuum level), that is, when the pressure relief is completed or substantially completed, the negative pressure switch 3363 outputs a second pressure signal; the pressure driving device 3341 drives the second pressure portion to press against the door panel 3310 according to the door opening command and the second pressure signal, thereby tilting the door panel 3310.

[0100] After the door panel 3310 is tilted to a certain opening (in this embodiment, for example, the angle between the plate surface of the door panel 3310 facing the boss portion 3320 and the plane where the grain outlet hole 2021 is located is greater than the first preset angle, and the first protrusion 3313 is separated from the position of the first position switch 3351), the above-mentioned first position switch 3351 outputs fourth position information, and the door body driving device 3342 drives the door panel 3310 away from the grain outlet hole 2021 according to the fourth position information, and continues to increase the opening of the door panel 3310.

[0101] After the opening of the door panel 3310 increases to the required position (in this embodiment, for example, the angle between the plate surface of the door panel 3310 facing the boss portion 3320 and the plane where the grain outlet hole 2021 is located is greater than or equal to the second preset angle, and the first protrusion 3313 abuts the position of the third position switch 3352), the above-mentioned third position switch 3352 generates third position information, and the door body drive device 3342 stops power output according to the third position information, completing the opening of the door body assembly 3300.

[0102] Among them, the specific structure of the feeder refers to the above embodiments. Since this control method adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0103] In addition, refer to Figure 8 、 Figure 9 In one embodiment of the present invention, the feeder includes a body 3000, a food bowl 4000, and a grain storage bin. The feeder also includes a vacuum device (not shown) provided on the body 3000, the grain storage bin, or the sealing cover. The vacuum device is used to vacuum the grain storage bin to reduce the risk of food spoilage in the grain storage bin. The grain storage bin includes a barrel 2000 and a sealing cover; Figure 10 The sealing cover includes a first cover plate 1100 and a transverse pull plate 1300. The barrel body 2000 defines a receiving chamber 2001 with an opening. The wall of the receiving chamber 2001 is provided with a bayonet. The first cover plate 1100 covers the opening, and the end of the transverse pull plate 1300 engages with the bayonet, thereby locking the first cover plate 1100 to the barrel body 2000.

[0104] In some embodiments, reference Figure 9 、 Figure 10 A first step structure 2110 is provided at the opening of the accommodating cavity 2001. The latch can be configured as a snap-fit ​​groove 2111. The snap-fit ​​groove 2111 is provided on the side surface of the first step structure 2110 facing the first cover plate 1100. The end of the transverse pull plate 1300 extends into the snap-fit ​​groove 2111. Thus, the end of the transverse pull plate 1300 cooperates with the wall surface of the snap-fit ​​groove 2111 to lock the first cover plate 1100 and prevent it from falling out. The snap-fit ​​groove 2111 is provided on the side surface of the first step structure 2110 facing the first cover plate 1100, which reduces the physical structure of the barrel body 2000 and helps improve the structural compactness of the barrel body 2000. Of course, for the snap-in of the cavity wall of the accommodating cavity 2001, two spaced-apart convex strips can also be set on the surface of the side of the first step structure 2110 facing the first cover plate 1100, and the horizontal pull plate 1300 can be snapped in place through the space between the two convex strips. This embodiment does not limit this.

[0105] In some embodiments, reference Figure 10 、 Figure 11 The edge of the first cover plate 1100 is provided with a first sealing ring 1140, which is a sealing strip surrounding the outer peripheral wall of the first cover plate 1100; at least one of the outer side surface of the first sealing ring 1140 and the surface of the first sealing ring 1140 facing away from the first cover plate 1100 abuts against the first step structure 2110, for example, referring to Figure 11 The outer side surface of the first sealing ring 1140 and the surface of the first sealing ring 1140 facing away from the first cover plate 1100 both abut against the first step structure 2110. Of course, the outer side surface of the first sealing ring 1140 or the surface of the first sealing ring 1140 facing away from the first cover plate 1100 may also abut against the first step structure 2110, and this embodiment is not limited to this. In this embodiment, the first sealing ring 1140 can improve the sealing between the outer periphery of the first cover plate 1100 and the barrel body 2000, facilitating the prevention of foreign matter or the vacuuming of the accommodating chamber 2001.

[0106] In addition, the feeder is provided with a grain discharging passage communicating with the receiving chamber 2001. The outlet of the grain discharging passage is arranged opposite the food bowl 4000, so that the food in the grain discharging passage can reach the food bowl 4000. The feeder also includes a grain distributing assembly, which can be configured to include a stirring structure and a corresponding grain discharging motor. The grain distributing assembly is used to allow the food in the receiving chamber 2001 to enter the grain discharging passage.

[0107] The sealing cover also includes a valve core assembly and a motion assembly. Figure 11The first cover plate 1100 is provided with a first cover body through hole 1110, which is in communication with the accommodating chamber 2001. The accommodating chamber 2001 of the barrel body 2000 is connected to the outside world through the first cover body through hole 1110, thereby relieving the negative pressure in the accommodating chamber 2001. The valve core assembly 1200 includes a valve seat 1210 and a valve core body 1220. The valve seat 1210 is connected to the first cover plate 1100. There are two ways to achieve relative fixation between the valve seat 1210 and the first cover plate 1100, including directly connecting the valve seat 1210 to the first cover plate 1100 or connecting the valve seat 1210 to the first cover plate 1100 via screws.

[0108] The valve seat 1210 is fixed relative to the first cover plate 1100. Figure 11 In addition to the disclosed method, the valve seat 1210 can also be fixed to the second cover plate 1400. At this time, since the second cover plate 1400 and the first cover plate 1100 have a relatively fixed position, the valve seat fixed to the second cover plate 1400 also has a relatively fixed position with the first cover plate 1100.

[0109] The valve core 1220 can move longitudinally relative to the valve seat 1210 and has a first position and a second position. Figure 11 In the first position, the valve core body 1220 blocks the first cover body through hole 1110; Figure 12 In the second position, the valve core body 1220 is at least partially separated from the through hole of the first cover body 1110. The valve core body 1220 can move longitudinally relative to the valve seat 1210, so that the blockage of the first cover body through hole 1110 can be released or the blockage of the first cover body through hole 1110 can be restored by the movement of the valve core body 1220. A guide hole can be provided on the valve seat 1210, and a valve stem 1223 can be provided on the valve core body 1220. The valve stem 1223 is sleeved in the guide hole to achieve directional movement of the valve core body 1220 relative to the valve seat 1210. In order to improve the sealing degree of the valve core body 1220 in blocking the first cover body through hole 1110, a valve core 1224 can be provided at one end of the valve core body 1220 facing the first cover body through hole 1110. The valve core 1224 can be made of a colloid material.

[0110] Continue to refer to Figure 11 The valve core body 1220 is provided with a first inclined surface 1221, and the first inclined surface 1221 is inclined in the longitudinal upward direction toward the direction away from the first cover plate 1100. For example, referring to Figure 11 When the first cover plate 1100 is arranged at the lower side, the first inclined surface 1221 is inclined toward the upper left as a whole.

[0111] The motion assembly includes the aforementioned transverse plate 1300, which is connected to the first cover plate 1100. The transverse plate 1300 is capable of transverse movement relative to the first cover plate 1100 and has a third position and a fourth position. It is understood that transverse movement refers to movement perpendicular to the thickness of the transverse plate. Blocking structures such as vertical plates may be provided on either side of the transverse plate 1300 in the direction of movement to reduce the likelihood of the transverse plate 1300 moving sideways in the direction of movement and improve the efficiency of the transverse plate 1300's movement.

[0112] Reference Figure 11 In the third position, the end of the transverse pull plate 1300 away from the valve core body 1220 extends out of the outside of the first cover plate 1100, thereby being able to engage with the snap-fit ​​groove 2111 or other snap-fitting grooves on the wall of the accommodating chamber 2001. Correspondingly, the valve core body 1220 is now in the first position of blocking the first cover body through hole 1110. The valve core body 1220 can be blocked on the first cover body through hole 1110 by its own gravity, or the valve core body 1220 can be more stably blocked on the first cover body through hole 1110 by the action of a force-applying component, which is not limited in this embodiment. That is, when the first cover plate 1100 is locked to the barrel body 2000, in the third position, the end of the transverse pull plate 1300 away from the valve core body 1220 engages with the snap-fitting groove. When the first cover through hole 1110 is in communication with the accommodating chamber 2001 , the accommodating chamber 2001 is isolated from the outside because the first cover through hole 1110 is blocked by the valve core 1220 .

[0113] Reference Figure 12 In the fourth position, one end of the horizontal pull plate 1300 toward the valve core body 1220 abuts against the first inclined surface 1221 to move the valve core body 1220 away from the first cover body through hole 1110, that is, the valve core body 1220 is in the above-mentioned second position at least partially separated from the first cover body through hole 1110, thereby opening the first cover body through hole 1110 and reducing the negative pressure in the accommodating cavity 2001.

[0114] In the fourth position, the horizontal pull plate 1300 abuts against the valve core body 1220 to move the valve core body 1220 toward the second position. Figure 12In addition to the disclosed methods, there are at least the following methods: Method 1, when in the fourth position, the transverse pull plate 1300 is arranged at the bottom of the valve core body 1220 toward one end of the valve core body 1220, and the transverse pull plate 1300 lifts the valve core body 1220 upward in the longitudinal direction; Method 2, when in the fourth position, the valve core body 1220 is provided with a first inclined surface 1221, and the first inclined surface 1221 is inclined in the longitudinal upward direction toward the direction away from the first cover plate 1100, and the top of the transverse pull plate 1300 toward one end of the valve core body 1220 is against the first inclined surface 1221; Method 3: when in the fourth position, the transverse pull plate 1300 is provided with a second inclined surface 1311, and the second inclined surface 1311 is inclined in the longitudinal downward direction toward the direction close to the first cover plate 1100, and the bottom end of the valve core body 1220 is against the second inclined surface 1311.

[0115] In this embodiment, when the barrel body 2000 needs to be opened, the user pulls the horizontal pull plate 1300 horizontally, and the end of the horizontal pull plate 1300 extending outward from the outside of the first cover plate 1100 retracts to release the clamping connection between the first cover plate 1100 and the barrel body 2000. At the same time, the other end of the horizontal pull plate 1300 abuts against the first inclined surface 1221, thereby prompting the valve core body 1220 to move away from the first cover body through hole 1110, so that the air inside the barrel body 2000 and the outside can circulate to balance the air pressure, making it easier for the user to move the first cover plate 100 to open the barrel body 2000; when the barrel body 2000 needs to be closed, the user pulls the horizontal pull plate 1300 horizontally and covers the first cover plate 1100 on the barrel body 2000. When the user releases the horizontal pull plate 1300, one end of the horizontal pull plate 1300 extends out of the outside of the first cover plate 1100 and engages with the barrel body 2000. At the same time, the other end of the horizontal pull plate 1300 is separated from the first inclined surface 1221, thereby prompting the valve core body 1220 to block the first cover body through hole 1110, making it more convenient to open the cover.

[0116] In the prior art, the vacuum food storage device used by users has the following disadvantages: the user needs to exert a lot of effort to open the grain storage bin. For example, in the method in which the locking slide of the cover body is fixedly connected to the seal of the cover body's ventilation channel, the user drives the seal to ventilate the grain storage bin when dragging the slide. If there is only one slide body with a seal and a corresponding ventilation channel, it means that the user needs to use one finger or one slide body to apply force to simultaneously unlock and ventilate the grain storage bin cover, which is very inconvenient for users with less strength to complete the opening of the cover; if both slide bodies are provided with seals and corresponding ventilation channels, although the user can use two fingers or two slide bodies to apply force, the increase in the number of ventilation channels also increases the difficulty of sealing the vacuum feeder / grain storage bin; at the same time, in this technical solution, the movement trajectory of the slide body coincides with the movement trajectory of the seal, which also has a negative impact on the service life and sealing reliability of the vacuum food storage device.

[0117] This technical solution not only reduces the difficulty of maintaining sealing and negative pressure in the vacuum feeder / grain storage bin, but its smooth operation also makes it easier for users to use, saving time and effort.

[0118] In some embodiments, reference Figure 11 The first cover plate 1100 is provided with a positioning groove 1101. The first cover through-hole 1110 is located at a position corresponding to the positioning groove 1101 and the valve core 1220. The valve core 1220 is partially embedded within the positioning groove 1101. In this embodiment, the positioning groove 1101 provides more travel space for the longitudinal movement of the valve core 1220. When the valve core 1220 has the same travel space requirements, the first cover plate 1100 and the valve core assembly together occupy less height space, which facilitates the miniaturization of the feeder.

[0119] In some embodiments, reference Figure 11 The valve core body 1220 can be configured to include the above-mentioned valve stem 1223 and valve core 1224, the valve core 1224 is connected to the lower end of the valve stem 1223 and is driven by the valve stem 1223 to move toward or away from the first cover body through hole 1110, and the valve stem 1223 extends longitudinally into the cavity in the valve seat 1210. For example, the valve stem 1223 moves and extends into the cavity in the valve seat 1210 by cooperating with the above-mentioned guide hole.

[0120] In some embodiments, the valve core assembly may further include a second elastic member 1620 for driving the valve core body 1220 to move toward the first cover body through hole 1110, one end of the second elastic member 1620 is connected to the valve seat 1210, and the other end of the second elastic member 1620 is connected to the valve core body 1220; the second elastic member 1620 can be configured as a spring, a spring, an elastic rubber column or an elastic rope, etc., and this embodiment is not limited to this. When the second elastic member 1620 is configured as a hollow structure such as a spring, the second elastic member 1620 can be configured to be sleeved on the outer peripheral side of the above-mentioned valve stem 1223 to reduce the space occupied. In this embodiment, the second elastic member 1620 can automatically return the valve core body 1220 to block the first cover body through hole 1110, and can also maintain the valve core body 1220 blocking the first cover body through hole 1110, thereby improving the sealing performance at the first cover body through hole 1110. Of course, the second elastic member 1620 may not be provided, and the user may manually return the valve core body 1220 to its original position, which is not limited in this embodiment.

[0121] In some embodiments, the motion assembly can be configured to include two transverse pull plates 1300, wherein the two transverse pull plates 1300 can be arranged symmetrically along the center of the first cover plate 1100. Of course, the angle between the extension directions of the two transverse pull plates 1300 can also be set to be greater than or equal to 90 degrees and less than 180 degrees. For example, the angle between the extension directions of the two transverse pull plates 1300 can be set to 90 degrees, 120 degrees, 150 degrees, 170 degrees, etc., which is not limited in this embodiment. The valve core body 1220 is provided with two first inclined surfaces 1221, and the transverse pull plates 1300 are arranged one-to-one with the first inclined surfaces 1221. The two transverse pull plates 1300 can not only improve the locking stability between the transverse pull plates 1300 and the barrel body 2000, but also increase the force that pulls the valve core body 1220 away from the first cover body through hole 1110, further improving the success rate of relieving negative pressure and further enhancing the smoothness of opening the cover. During use, the user can operate with one hand, for example, with some fingers acting on one transverse pull plate 1300 and other fingers acting on the other transverse pull plate 1300. Of course, the motion assembly can also be configured to include only one transverse pull plate 1300, and the user can act on the transverse pull plate with some fingers and on the first cover plate 1100 and other structures with other fingers. This embodiment is not limited to this.

[0122] In some embodiments, reference Figure 11 The end of the transverse pull plate 1300 facing the valve core 1220 is provided with a second inclined surface 1311 corresponding to the first inclined surface 1221. The second inclined surface 1311 can be positioned facing away from the first cover plate 1100. For example, when the first cover plate 1100 is positioned on the lower side, the second inclined surface 1311 faces upward. In this embodiment, when the transverse pull plate 1300 moves laterally and retracts, the second inclined surface 1311 can abut against the first inclined surface 1221, thereby moving the valve core 1220 away from the first cover through-hole 1110. This abutment of the second inclined surface 1311 with the first inclined surface 1221 improves the smooth movement of the valve core 1220.

[0123] Among them, reference Figure 11 、 Figure 14A second inclined platform 1310 is provided on the end of the horizontal pull plate 1300 facing the valve core body 1220. A second protrusion 1312 is provided on the inclined surface of the second inclined platform 1310, and the second inclined surface 1311 is disposed on the second protrusion 1312. That is, the second inclined surface 1311 is generally strip-shaped, thereby reducing the contact area between the second inclined surface 1311 and the first inclined surface 1221, which helps to improve the smoothness of movement of the valve core body 1220. It is understood that the valve core body 1220 can be provided with a first inclined platform 1222, and the first inclined surface 1221 can be disposed on the inclined surface of the first inclined platform 1222, so that the second inclined surface 1311 interacts with the inclined surface of the first inclined platform 1222 through the second protrusion 1312. Of course, the inclined surface of the first inclined platform 1222 can be provided with a first ridge, and the first inclined surface 1221 is provided on the first ridge. The first ridge and the second ridge 1312 abut against each other, so that the first inclined surface 1221 and the second inclined surface 1311 interact with each other, or the first ridge and the second ridge 1312 are arranged in an interlaced manner. Alternatively, the inclined surface of the first inclined platform 1222 can be provided with a first ridge, and the first inclined surface 1221 is provided on the first ridge. In addition, a second inclined platform 1310 is provided on the end of the horizontal pull plate 1300 facing the valve core body 1220, and the second inclined surface 1311 is provided on the inclined surface of the second inclined platform 1310. The first ridge causes the first inclined surface 1221 to act on the inclined surface of the second inclined platform 1310.

[0124] In some embodiments, reference Figure 13 、 Figure 15 The outer periphery of the first cover plate 1100 may be provided with a cover body enclosure 1120, which is provided with a plate body through-hole 1121. A portion of the transverse pull plate 1300 is disposed within the enclosed space 1122 of the cover body enclosure 1120, thereby improving the space utilization of the sealing cover. In the third position, the end of the transverse pull plate 1300 away from the valve core body 1220 passes through the plate body through-hole 1121 and extends outward, thereby facilitating engagement with a latch on the wall of the accommodating chamber 2001.

[0125] In some embodiments, reference Figure 15 At least one of the contact surfaces between the plate through hole 1121 and the transverse pull plate 1300 is provided with a convex strip extending along the movement direction of the transverse pull plate 1300. Figure 15The two contact surfaces between the plate through-hole 121 and the transverse pull plate 1300 are respectively a first contact surface and a second contact surface, such as the upper and lower side surfaces in the figure. The raised strips include a third raised strip 1223 provided on the first contact surface and a second raised strip 1224 provided on the second contact surface. These raised strips are capable of abutting the transverse pull plate 1300. The raised strips' surface-to-surface contact reduces the contact area between the plate through-hole 1121 and the transverse pull plate 1300, avoiding surface-to-surface contact, lowering the friction coefficient between the contact surfaces, and improving the efficiency of the transverse movement of the transverse pull plate 1300.

[0126] In some embodiments, reference Figure 11 The sealing cover also includes a second cover plate 1400 that is positioned over the first cover plate 1100. The second cover plate 1400 is spaced apart from the first cover plate 1100, and the first cover plate 1100 and the second cover plate 1400 enclose an installation space. The gap between the second cover plate 1400 and the first cover plate 1100 can accommodate components such as the transverse pull plate 1300. The valve core assembly and the motion assembly are installed in the installation space, which facilitates miniaturization of the sealing cover. The edge of the second cover plate 1400 is connected to the end of the cover body enclosure 1120 facing away from the first cover plate 1100, for example, by a snap-fit ​​connection. The second cover body through-hole 1410 is provided in the second cover plate 1400. A latch structure 1320 is provided on the side of the transverse pull plate 1300 facing away from the first cover plate 1100. The latch structure 1320 is a structure for a user's hand to apply force. The latch structure 1320 can be located at the second cover body through-hole 1410. In this embodiment, the handle structure 1320 can be accommodated in the gap between the second cover plate 1400 and the first cover plate 1100 to improve space utilization, and can also be easily accessible to the user by being arranged opposite the second cover body through hole 1410. In the second position described above, the valve core body 1220 can be arranged to be at least partially separated from the first cover body through hole 1110 to connect the first cover body through hole 1110 and the second cover body through hole 1410, thereby connecting the accommodating chamber 2001 of the barrel body 2000 with the outside world.

[0127] In some embodiments, reference Figure 13 、 Figure 14The sealing cover also includes a hand support base 1510, which is arranged on the side of the transverse pull plate 1300 facing away from the first cover plate 1100. The hand support base 1510 is connected to the first cover plate 1100, including direct connection between the hand support base 1510 and the first cover plate 1100, or connection between the hand support base 1510 and the first cover plate 1100 via an intermediate connection structure, so as to achieve relative fixation between the hand support base 1510 and the first cover plate 1100. The hand support base 1510 is used to abut the transverse pull plate 1300, which can prevent the transverse pull plate 1300 from accidentally falling out; the hand support base 1510 is arranged opposite to the second cover body through hole 1410, which can allow the user's hand to stop at the hand support base 1510 when moving, thereby preventing the transverse pull plate 1300 from causing damage to the user's hand.

[0128] In some embodiments, reference Figure 14 The outer edge of the hand support base 1510 is provided with a hand support panel 1520, and the end of the hand support panel 1520 facing away from the hand support base 1510 is connected to the edge of the second cover body through hole 1410. In this embodiment, the hand support panel 1520 can prevent the user's fingers from accidentally contacting the horizontal pull plate 1300 and other structures beside the hand support base 1510, further reducing the risk of injury to the user's hands. In some embodiments, refer to Figure 16 The hand support panel 1520 is extended along the circumferential direction of the hand support base plate 1510, and a side gap 1521 is formed between the two circumferential sides of the hand support panel 1520. The hand catch structure 1320 can be arranged to pass through the side gap 1521, thereby improving the airtightness of the position near the hand catch structure 1320, reducing the possibility of foreign matter entering the gap between the first cover plate 1100 and the second cover plate 1400, and reducing the probability of foreign matter causing the horizontal pull plate 1300 to move and become stuck, or foreign matter entering the accommodating cavity 2001. The connection between the hand support panel 1520 and the hand support base plate 1510 can be set to a circular arc transition to smoothly guide the user's fingers to the hand catch structure 1320. In addition, the armrest panel 1520 and the armrest base 1510 can be configured to be integrally formed, for example, by injection molding, to reduce the gap at the connection between the armrest panel 1520 and the armrest base 1510, thereby reducing the risk of pinching the user at the connection between the armrest panel 1520 and the armrest base 1510.

[0129] In some embodiments, the motion assembly further includes a first elastic member 1610 for driving the transverse pull plate 1300 to extend outward from the first cover plate 1100. One end of the first elastic member 1610 is connected to the first cover plate 1100, and the other end of the first elastic member 1610 is connected to the transverse pull plate 1300. The first elastic member 1610 can be configured as a spring, a spring, an elastic rubber column, or an elastic cord, etc., and this embodiment is not limited to this. The first elastic member 1610 can return the transverse pull plate 1300 to a position where it engages with a latch on the wall of the accommodating chamber 2001, and helps to maintain the engagement between the transverse pull plate 1300 and the latch. Of course, the motion assembly may also not include the first elastic member 1610, and the user can manually return the transverse pull plate 1300 to its original position, and this embodiment is not limited to this.

[0130] During the manufacturing and use of the transverse pull plate 1300, the end of the transverse pull plate 1300 may warp or float, causing misalignment with the snap groove 2111 and other snap-in slots, potentially preventing the transverse pull plate 1300 from snapping in. For example, when the first sealing ring 1140 is sleeved on the edge of the first cover plate 1100 and the snap-in slot at the opening includes the snap groove 2111, the first sealing ring 1140 may squeeze against the barrel body 2000, causing the first cover plate 1100 to not be pressed down into place. The warping or floating of the end of the transverse pull plate 1300 may prevent the end of the transverse pull plate 1300 from entering the snap groove 2111. In some embodiments, the first elastic member 1610 is also used to move the transverse pull plate 1300 toward the first cover plate 1100 along the thickness direction of the transverse pull plate 1300, which is beneficial to reduce the possibility of warping or floating of the end of the transverse pull plate 1300 relative to the first cover plate 1100, and is beneficial to reduce the risk of misalignment between the transverse pull plate 1300 and the snap groove 2111 and other snap connections, and is beneficial to improve the smoothness of the snap connection between the transverse pull plate 1300 and the snap connection.

[0131] In some embodiments, reference Figure 11 The first cover plate 1100 includes a bent portion 1130. The distance between the inner side of the bent portion 1130 and the transverse plate 1300 is smaller than the distance between the outer side of the bent portion 1130 and the transverse plate 1300. In other words, the distance between the outer side of the bent portion 1130 and the transverse plate 1300 is relatively large. The first elastic member 1610 comprises a spring or elastic cord. The outer side of the bent portion 1130 is connected to the end of the first elastic member 1610, while the other end of the first elastic member 1610 is connected to the transverse plate 1300. Therefore, the first elastic member 1610 is arranged at an angle as a whole. In this embodiment, the bent portion 1130 not only enhances the structural strength of the first cover plate 1100 through its own shape and structure, but also creates a larger distance between the outer side and the transverse plate 1300 to accommodate the first elastic member 1610, thereby improving the structural compactness of the sealing cover.

[0132] When manufacturing the above-mentioned sealing cover, the transverse pull plate 1300, the hand support bottom plate 1510, the hand support surrounding plate 1520, the first elastic member 1610, and the valve core assembly can be first installed on the first cover plate 1100, and then the second cover plate 1400 can be installed. When using the above-mentioned sealing cover, during the process of the transverse pull plate 1300 moving laterally and extending outward, the transverse pull plate 1300 can be stopped by the hand-clasping structure 1320 abutting the hand support bottom plate 1510, or by the outwardly extending end of the transverse pull plate 1300 abutting the barrel body 2000, or by making the transverse pull plate 1300 stop at the end of its laterally moving and extending travel corresponding to the original length position of the first elastic member 1610. This embodiment is not limited to this.

[0133] In one embodiment of the present invention, the feeder includes a body 3000, a barrel 2000, a grain dispensing assembly, connecting lines 3011, and a blocking structure 3012. The body 3000 includes a partition 3100, which divides the interior of the body 3000 into a first chamber 3001 and a second chamber 3002 spaced apart longitudinally. The first chamber 3001 is used to accommodate a controller, and the second chamber 3002 is used to accommodate a grain dispensing motor 2210. The second chamber 3002 has an opening. The partition 3100 is formed with a grain dispensing hole 3031 and a wire passing hole 3032. The barrel 2000 is connected to the body 3000 and seals the opening. The grain dispensing assembly includes a grain dispensing motor 2210 and a stirring mechanism 2220. The stirring mechanism 2220 is disposed on the barrel 2000. The dispensing motor 2210 drives the stirring mechanism 2220 to move the grain in the receiving chamber 2001 to the grain dispensing hole 3031. Reference Figure 18 、 Figure 19 One end of the connecting wire 3011 is electrically connected to the grain discharging motor 2210, and the other end of the connecting wire 3011 passes through the wire through hole 3032 and enters the first chamber 3001 to electrically connect to the controller. Because the grain discharging motor 2210 of the feeder of the present invention is located in the second chamber 3002 with an opening, when installing the grain discharging motor 2210, there is no need to invert the body 3000 or pay special attention to the connection and alignment between the grain discharging motor 2210 and the stirring structure 2220 in the barrel 2000. This feeder of this embodiment facilitates the installation of the drive motor.

[0134] In this embodiment, the partition plate 3100 is formed with a grain outlet hole 3031. In other embodiments, the grain outlet hole 3031 can also be formed in the barrel body or the peripheral wall of the second chamber 3002.

[0135] Reference Figure 18 、 Figure 19The sealing structure 3012 blocks the gap between the connecting line 3011 and the wire through hole 3032. The sealing structure 3012 can be configured as a sealing colloid, or alternatively, as a sealing ring, which is not limited in this embodiment. Furthermore, the connecting line 3011 can be configured as a connecting wire that provides power or an electrical signal.

[0136] The present invention is based on the following discovery of the inventors: in order to prevent food from spoiling due to moisture and other reasons, a vacuum is usually formed in the grain storage bin. In the prior art, the stirring impeller of the grain distribution assembly is arranged in the grain storage bin, and the motor that drives the stirring impeller is arranged in the base of the machine body. The output shaft of the motor that drives the stirring impeller and the connection between the grain storage bin need to form a sealing boundary, which is generally sealed by a sealing ring. Since the motor that drives the stirring impeller needs to drive the stirring impeller to discharge grain, the movement of the connection between the motor that drives the stirring impeller and the grain storage bin will destroy the negative pressure state of the grain storage bin, or in other words, the movement of the connection between the motor that drives the stirring impeller and the grain storage bin brings challenges to maintaining the vacuum in the grain storage bin.

[0137] The technical solution of the embodiment of the present invention is to avoid using the connection between the moving part of the grain discharging motor and the grain storage bin as a sealing boundary when the feeder is working. Since there is less relative movement between the connecting line and the wire through hole, the risk of the sealing structure between the connecting line and the wire through hole being damaged is relatively small. The embodiment of the present invention helps to improve the sealing performance of the feeder.

[0138] To facilitate adding or replacing food, the feeder may also be provided with an openable and closable sealing cover, such as at the top of the barrel 2100. The feeder may also include a food outlet channel 3200, a door assembly 3300, and a food bowl 4000. The door assembly 3300 is used to cover the food outlet hole 3031. The food outlet channel 3200 is connected to the food outlet hole 3031, and the outlet of the food outlet channel 3200 is located opposite the food bowl 4000. Of course, the feeder may also be provided without the food outlet channel 3200, and food may be directly discharged through the food outlet hole 3031.

[0139] In this embodiment, when the feeder is working, it can avoid using the connection between the moving part of the grain discharging motor 2210 (such as the motor shaft) and the cavity wall of the accommodating cavity 2001 as a sealing boundary. In addition, there is less relative movement between the connecting line 3011 and the wire through hole 3032, and the risk of the sealing structure 3012 between the connecting line and the wire through hole 3032 being damaged is relatively small, which is conducive to improving the sealing performance of the feeder.

[0140] In some embodiments, reference Figure 18 、 Figure 20The feeder may include a vacuum pump 3361 and an exhaust pipe 3381 disposed in the first chamber 3001. The partition plate 3100 is formed with a first through-hole 3371 adapted to connect the first chamber 3001 and the second chamber 3002. The vacuum pump 3361 is connected to the first through-hole 3371 via the exhaust pipe 3381. In this embodiment, the user can activate the vacuum pump 3361 to evacuate the first chamber 3001, thereby improving the shelf life of the food within the receiving chamber 2001 connected to the first chamber 3001. Furthermore, the placement of the vacuum pump 3361 and the exhaust pipe 3381 in the first chamber 3001 reduces the risk of damage from external components, thereby improving the service life of the feeder.

[0141] In some embodiments, the feeder may include a solenoid valve 3362 and an air inlet pipe 3382 disposed in the first chamber 3001. The partition plate 3100 is formed with a second through-hole 3372 adapted to connect the first chamber 3001 and the second chamber 3002. The solenoid valve 3362 communicates with the second through-hole 3372 via the air inlet pipe 3382. To open the lid, the user can activate the solenoid valve 3362 by, for example, turning on a solenoid switch on a controller. The solenoid valve 3362 then introduces air into the barrel 2000 through the air inlet pipe 3382, balancing the air pressure between the barrel 2000 and the outside world, thereby facilitating opening the sealed lid. The placement of the solenoid valve 3362 and air inlet pipe 3382 in the first chamber 3001 reduces the risk of damage from external components and increases the lifespan of the feeder.

[0142] In some embodiments, the feeder may include a negative pressure switch 3363 and a negative pressure tube 3383 disposed within the first chamber 3001. The negative pressure switch 3363 may be an electronic pressure switch. An electronic pressure switch senses pressure through a diaphragm, converting the physical signal into an electrical signal via a pressure sensor. This signal is then amplified and processed by an amplifier and processing circuit to produce a standard analog output or a solid-state relay output. The partition plate 3100 is formed with a third through-hole 3373 connecting the first chamber 3001 and the second chamber 3002. The negative pressure switch 3363 is connected to the third through-hole 3373 via a negative pressure tube 3383. In this embodiment, the negative pressure switch 3363 may be electrically connected to a vacuum pump 3361. Upon detecting that the pressure within the barrel 2000 has dropped to a set value, the negative pressure switch 3363 creates a vacuum environment within the barrel 2000, for example by controlling the controller to stop the vacuum pump 3361. The negative pressure switch 3363 is arranged in the first chamber 3001 , which can reduce the interference of foreign matter such as dust from the outside on the negative pressure switch 3363 and improve the detection accuracy of the negative pressure switch 3363 .

[0143] In some embodiments, the feeder includes a chamber cover 2300. The bottom wall of the second chamber 3002 is provided with a recess defining a drive chamber 3021 for accommodating the grain dispensing motor 2210. The chamber cover 2300 covers the drive chamber 3021 and includes a first transmission hole for securing the bearing of the grain dispensing motor 2210. A stirring structure 2220 is disposed on the side of the chamber cover 2300 facing away from the grain dispensing motor 2210. The grain dispensing assembly also includes a transmission structure 2230, which can be cylindrical. One end of the transmission structure 2230 is connected to the grain dispensing motor 2210, and the other end extends through the first transmission hole and connects to the stirring structure 2220. In this embodiment, the walls of the second chamber 3002 already form a sealed boundary, reducing the sealing requirements for the first transmission hole in the chamber cover 2300. The chamber cover 2300 can reduce the possibility of food entering the driving chamber 3021, reduce the risk of food damaging the grain discharging motor 2210, and reduce the possibility of food being contaminated by the grain discharging motor 2210.

[0144] In some embodiments, reference Figure 18 、 Figure 24 The feeder includes a motor bracket and a rotating disk 2231, wherein the rotating disk 2231 can be configured as part of the transmission structure 2230. The motor bracket includes a bracket body 2233 and a mounting bracket 2234. The mounting bracket 2234 is located above the bracket body 2233. The grain discharging motor 2210 is mounted on the bracket body 2233. The mounting bracket 2234 is provided with a first photoelectric switch 2235 and a second photoelectric switch 2236 spaced longitudinally apart. The shaft of the grain discharging motor 2210 drives the rotating disk 2231 to rotate. The rotating disk 2231 is provided with a sensing portion 2232. The first photoelectric switch 2235 and the second photoelectric switch 2236 are used to detect the sensing portion 2232. For example, the sensing portion 2232 can be configured as a notch on the rotating disk 2231. The first photoelectric switch 2235 and the second photoelectric switch 2236 determine the rotation angle of the stirring structure 2220 or the corresponding number of grain portions to be discharged based on the number of times the sensing portion 2232 is sensed.

[0145] In some embodiments, reference Figure 18 The partition plate 3100 includes a first partition portion 3101 and a second partition portion 3102. The first partition portion 3101 is provided with a grain discharging motor 2210. For example, Figure 18 The first partition 3101 is The feeder is shaped like a letter " ' " and forms a groove with the inner circumferential wall of the body 3000. This groove is used to accommodate the drive chamber 3021 of the grain discharging motor 2210, thereby enabling the installation of the grain discharging motor 2210. A second partition 3102 extends transversely from the edge of the first partition 3101 to connect with the inner circumferential wall of the body 3000. A grain discharging hole 3031 is provided in the second partition 3102. The feeder also includes a grain discharging channel 3200 mounted on the second partition 3102. The grain discharging channel 3200 is located within the first chamber 3001 and communicates with the grain discharging hole 3031. In this embodiment, the grain discharging hole 3031 is provided on the second partition 3102, allowing food to flow out from the side of the drive chamber 3021. Alternatively, a grain discharging channel 3200 formed by a solid structure such as a housing can be provided next to the drive chamber 3021, thereby improving the space utilization of the feeder.

[0146] The second chamber 3002 is provided with a groove to define a drive chamber 3021 for accommodating the grain discharging motor 2210. Figure 18 In addition to the disclosed method, a portion of the bottom wall of the second chamber 3002 can be recessed downward to form a driving chamber 3021 for accommodating the grain discharging motor 2210.

[0147] In some embodiments, reference Figure 18 、 Figure 19 , the blocking structure 3012 is a blocking colloid; the feeder also includes a glue blocking structure 3033 arranged opposite to the wire through hole 3032, the glue blocking structure 3033 is arranged in the second chamber 3002, and the glue blocking structure 3033 and the cavity wall of the second chamber 3002 form a wire gap 3034, and the wire gap 3034 and the wire through hole 3032 are arranged in the horizontal direction. The grain discharging motor 2210 is usually set at the edge position to reduce the occupation of the cavity space. In this embodiment, the wire through hole 3032 can be flipped to an upward position, and then the wire through hole 3032 can be used to pour glue to form a blocking colloid, that is, to form the above-mentioned blocking structure 3012. During the glue pouring process, the glue blocking structure 3033 can slow down the downward flow of the colloid before solidification, and the colloid is more likely to solidify at the wire through hole 3032, thereby improving the molding efficiency of the blocking colloid and reducing the risk of contamination caused by the colloid dripping into the cavity. The wire gap 3034 and the wire through hole 3032 are arranged in a transverse direction. The feeder can use the wire gap 3034 to change the direction of the connecting line 3011, thereby reducing the possibility of the colloid before solidification flowing along the wire.

[0148] Among them, reference Figure 18 、 Figure 22The end of the barrel body 2000 that faces the opening of the second chamber 3002 extends into the second chamber 3002, thereby forming the second chamber 3002 together with the body 3000 through the barrel cavity of the barrel body 2000. To improve the sealing between the barrel body 2000 and the body 3000, a second sealing ring 3003 may be provided between the end of the barrel body 2000 that faces the opening of the second chamber 3002 and the inner circumferential wall of the second chamber 3002, thereby sealing the connection between the barrel body 2000 and the body 3000 through the second sealing ring 3003. The barrel body 2000 may maintain its connection with the body 3000 by its own gravity, or the barrel body 2000 may be screwed together with the body 3000 by a spiral structure, or fixed by a snap-fit ​​structure, a plug-in structure, etc., which is not limited in this embodiment.

[0149] In some embodiments, reference Figure 18 、 Figure 21 The barrel body 2000 may be configured to include a first barrel section 2110, a closing section 2120, and a second barrel section 2130 sequentially connected along the height direction of the barrel body 2000. The diameter of the second barrel section 2130 is smaller than the diameter of the first barrel section 2110, and the diameter of the closing section 2120 decreases toward the second barrel section 2130. The second barrel section 2130 extends into the second chamber 3002, and the outer peripheral wall of the closing section 2120 is in contact with the inner peripheral wall of the second chamber 3002. Figure 18 , the second barrel section 2130 extends into the second chamber 3002, so that the flatness adjustment space between the outer wall of the first barrel section 2110 and the outer wall of the body 3000 is larger. Figure 18 The outer peripheral wall of the closing section 2120 is fitted with the inner peripheral wall of the second chamber 3002, for example, the outer peripheral wall of the closing section 2120 is abutted against the opening of the second chamber 3002, thereby improving the connection stability between the barrel body 2000 and the machine body 3000.

[0150] In some embodiments, reference Figure 18 or Figure 22 The inner circumferential wall of the second chamber 3002 is provided with a second step structure 3004, which extends along the circumference of the second chamber 3002. One axial end of the second sealing ring 3003 abuts the second step structure 3004, while the other axial end surface of the second sealing ring 3003 abuts the downward end of the barrel body 2000. In this embodiment, the second step structure 3004 not only facilitates the placement of the second sealing ring 3003, but also reduces the risk of the sealing ring 3002 being squeezed out of alignment due to positional deviation between the barrel body 2000 and the machine body 3000, thereby improving the durability of the seal between the barrel body 2000 and the machine body 3000.

[0151] In some embodiments, as Figure 18As shown, the feeder also includes an inner partition 2600, the outer periphery of which is connected to the inner circumferential wall of the receiving chamber 2001. The inner partition 2600 is provided with a first grain inlet 2601 and a second transmission hole. The inner partition 2600 is positioned on the side of the chamber cover 2300 away from the grain discharging motor 2210, and is spaced apart from the chamber cover 2300. The receiving chamber 2001 includes a mixing chamber 3022 and a grain chamber 2011, respectively located on either side of the inner partition 2600. The mixing chamber 3022 is positioned between the chamber cover 2300 and the inner partition 2600. In this manner, the drive chamber 3021, mixing chamber 3022, and grain chamber 2011 are sequentially arranged, improving space utilization within the feeder and enhancing the overall compactness of the feeder.

[0152] The chamber cover 2300 can be positioned at the end of the second barrel section 2130 facing away from the closing section 2120, and the inner baffle 2600 can be positioned at the end where the second barrel section 2130 and the closing section 2120 meet, further enhancing the compactness of the feeder. The inner baffle 2600, first barrel section 2110, closing section 2120, and second barrel section 2130 can be integrally formed to improve the overall manufacturing efficiency of the feeder.

[0153] Reference Figure 18 、 Figure 23 The stirring structure 2220 can be configured to include a first stirring portion 2221 and a second stirring portion 2222, wherein the first stirring portion 2221 is disposed within the grain bin 2011, and the second stirring portion 2222 is disposed within the stirring bin 3022. The transmission structure 2230, distal from the grain discharging motor 2210, extends into the grain bin 2011 and connects to the first stirring portion 2221. In this embodiment, the first stirring portion 2221 and the second stirring portion 2222 allow grain to pass smoothly through the grain bin 2011, the stirring bin 3022, and the grain discharging through-hole 3031, thereby improving grain delivery efficiency.

[0154] In some embodiments, reference Figure 23The first stirring section 2221 includes a first impeller, and the second stirring section 2222 includes a second impeller. The stirring structure 2220 also includes two buffer bars 2400 spaced apart along the circumference of the second impeller. The gap between the buffer bars 2400 communicates with the first grain outlet 2601. The first grain outlet 2601 is spaced apart from the grain outlet hole 3031 along the circumference of the second impeller. The blades of the second impeller cover the gap between the buffer bars 2400. In this embodiment, when grain enters the stirring chamber 3022, it can temporarily accumulate in the space formed by the two buffer bars 2400 and the blades of the second impeller. It then enters the gap between the blades of the second impeller and, driven by the second impeller, moves to the grain outlet hole 3031. This improves the orderliness of grain output and helps reduce the chance of blockage caused by excessive grain flow.

[0155] In some embodiments, reference Figure 18 The feeder further includes a tray 2500, which is disposed in the mixing chamber 3022. The opening of the tray 2500 faces the first grain outlet 2601, and the second mixing portion 2222 is disposed in the tray 2500. The bottom of the tray 2500 is provided with a second grain outlet 2501 and a third transmission through-hole. The transmission structure 2230 passes through the third transmission through-hole, and the second grain outlet 2501 is disposed opposite to the grain outlet through-hole 3031. In this embodiment, the two buffer strips 2400, the blades of the second impeller, and the peripheral wall of the tray 2500 form a temporary storage space, which can not only form portions of food, but also prevent the food from impacting the second sealing ring 3003 or causing the second sealing ring 3003 to become dirty, thereby increasing the service life of the second sealing ring 3003.

[0156] In some embodiments, reference Figure 21 The closing section 2120 is provided with a light-transmitting portion 2121, which can be made of transparent plastic, glass, or the like. The inner circumferential wall of the second chamber 3002 is provided with a light-emitting device 3410 and a light-receiving device 3420 corresponding to the light-transmitting portion 2121. The light-emitting device 3410 is configured to transmit light through the light-transmitting portion 2121 and into the accommodating cavity 2001, while the light-receiving device 3420 is configured to receive light that has passed through the light-transmitting portion 2121 within the accommodating cavity 2001. In this embodiment, the light-emitting device 3410 and the light-receiving device 3420 can detect whether food is still present in the accommodating cavity 2001 at a set position, thereby outputting a corresponding signal for external determination. For example, the sensor's output signal can be displayed or alarmed via a display light, buzzer, or screen.

[0157] The barrel body 2100 can be configured to include two oppositely disposed light-transmitting portions 2121, with the light-emitting device 3410 and the light-receiving device 3420 disposed on opposite sides of the barrel body 2100. A portion of the closed section 2120 is spaced apart from the inner wall of the second chamber 3002, with the light-transmitting portion 2121 disposed on the closed section 2120. The light-emitting device 3410 and the light-receiving device 3420 are both disposed within the gap between the closed section 2120 and the inner wall of the second chamber 3002. This improves the space utilization of the feeder and protects the light-emitting device 3410 and the light-receiving device 3420 from being impacted by external objects, thereby improving the safety of the light-emitting device 3410 and the light-receiving device 3420.

[0158] In one embodiment of the present invention, the feeder comprises a food bowl 4000 and a food storage device. The food storage device comprises a body and a plurality of legs 5000, the body defining a receiving cavity 2001 for storing food (see Figure 31 The feeder may also be provided with a food outlet channel, the outlet of which is arranged opposite to the food bowl 4000, so as to output the food in the receiving cavity 2001 into the food bowl 4000. Of course, the food storage device may not be provided with a food outlet channel, and the user may place the food in the receiving cavity 2001 into the food bowl 4000 by hand, etc., and this embodiment is not limited to this.

[0159] Among them, Figure 25 、 Figure 26 Taking the bottom view of the feeder as an example, a plurality of legs 5000 are arranged at intervals around the bottom of the body of the food storage device. The legs 5000 can rotate relative to the body and have a storage position and an extended position. Figure 26 In the storage position, the projection of the main body on the horizontal plane completely covers the projection of the tripod 5000 on the horizontal plane, that is, the tripod 5000 is retracted. Figure 25 In the extended position, the projection of the main body on the horizontal plane partially covers the projection of the leg stand 5000 on the horizontal plane, that is, the projection of the leg stand 5000 on the horizontal plane is not covered by the projection of the main body on the horizontal plane, that is, the leg stand 5000 extends outward from the main body. The horizontal plane refers to the plane on which the food storage device is placed during normal use, such as a bottom surface, a countertop, or a tabletop.

[0160] In this embodiment, the user can rotate the tripod 5000 to the storage position (see Figure 26 ), the projection of the body of the food storage device on the horizontal plane completely covers the projection of the tripod 5000 on the horizontal plane, so as to reduce the space occupied by the tripod 5000 and the body and facilitate storage; the user can also rotate the tripod 5000 to the extended position (refer to Figure 25), the horizontal projection of the food storage device's main body partially covers the horizontal projection of the tripod, and the tripod 5000 extends outward from the main body to create a larger support area and improve support stability, thereby reducing the possibility of the feeder and food storage device tilting or tipping when feeding larger animals such as dogs. In addition, the tripod 5000 can be rotated to a storage position and an extended position, increasing its flexibility for different application scenarios such as storage and feeding.

[0161] It is understandable that the support stability of the food storage device can improve the safety and stability of the equipment operation.

[0162] In some embodiments, a mounting portion is provided at the bottom of the body, and the tripod 5000 includes a rotating portion 5100 and a supporting portion 5200, wherein the supporting portion 5200 can be configured as a supporting plate, a supporting rod, a supporting bar, etc. The rotating portion 5100 is rotatably connected to the mounting portion, and the rotating axis of the rotating portion 5100 is perpendicular to the horizontal plane. For example, Figure 25 The rotation axis of the central rotating portion 5100 faces inward along the drawing, while the horizontal plane is parallel to the drawing. The support portion 5200 is fixedly connected to the rotating portion 5100, and the support portion 5200 can rotate within the horizontal plane through the rotating portion 5100. For example, the support portion 5200 and the rotating portion 5100 can be integrally formed, or can be connected by snap-fitting, plugging, etc. In this embodiment, the tripod 5000 can be accommodated at the bottom of the main body, or can be unfolded at the bottom of the main body for support. The tripod 5000 can reduce interference with other components and improve support stability at the bottom.

[0163] In some embodiments, reference Figure 27 、 Figure 30 The tripod 5000 may be provided with a protrusion 5121, and the mounting portion may be provided with a first groove 3531 and a second groove 3532. In the stowed position, the protrusion 5121 engages with the first groove 3531, for example, by extending the protrusion 5121 into the first groove 3531. In the extended position, the protrusion 5121 engages with the second groove 3532, for example, by extending the protrusion 5121 into the second groove 3532. In this embodiment, the user can improve the stability of the tripod 5000 in the stowed position by engaging the protrusion 5121 with the first groove 3531; the user can also improve the stability of the tripod 5000 in the extended position by engaging the protrusion 5121 with the second groove 3532.

[0164] In some embodiments, to reduce the risk of the bump 5121 scratching the bottom surface of the main body and other parts when rotating with the tripod 5000, the rotating portion 5100 may be provided with an elastic strip 5120, with the bump 5121 disposed at the end of the elastic strip 5120. In this embodiment, when the bump 5121 and the bottom surface of the main body and other parts are subjected to hard contact, the elastic strip 5120 can cushion the hard contact, thereby reducing the risk of the bump 5121 scratching the bottom surface of the main body and other structures.

[0165] Among them, reference Figure 27 , the mounting portion at the bottom of the body can be an annular groove 3536, and a column structure 3533 is provided in the annular groove 3536 to improve space utilization. The first groove 3531 and the second groove 3532 can be provided on the outer peripheral wall of the column structure 3533. The first groove 3531 and the second groove 3532 are spaced apart along the circumferential direction of the column structure 3533 to correspond to the two rotation positions of the tripod 5000, namely the storage position and the extended position. Correspondingly, the rotating portion 5100 can be provided as an annular sleeve, which is sleeved on the column structure 3533, and the support portion 5200 is fixedly connected to the outer peripheral wall of the annular sleeve. For example, the support portion 5200 and the annular sleeve can be integrally formed by injection molding, casting, or other processes. The annular sleeve is sleeved on the column structure 3533. For example, one end of the annular sleeve is inserted into the gap between the outer peripheral wall of the column structure 3533 and the inner peripheral wall of the annular groove 3536 to reduce the outward extension of the annular sleeve and improve the structural compactness of the feeder. The food storage device can also reduce the radial movement amplitude of the tripod 5000 through the outer peripheral wall of the column structure 3533 and the inner peripheral wall of the annular groove 3536, thereby reducing the shaking of the tripod 5000.

[0166] Reference Figure 28 、 Figure 29 The annular sleeve is provided with a through structure 5110, which penetrates the wall of the annular sleeve and can be configured as a notch, a through hole, etc. The elastic strip 5120 is fixedly connected to the wall of the through structure 5110, thereby utilizing the space of the through structure 5110 to improve space utilization.

[0167] In some embodiments, reference Figure 29 The through structure 5110 includes a notch, which is provided on the end of the annular sleeve facing away from the support portion 5200. For example, the notch is provided on Figure 29 The upper end of the middle annular sleeve. An elastic strip 5120 is disposed on the notch, extending parallel to the axis of rotation. The elastic strip 5120 includes a free end, with a convex bump 5121 disposed on the side of the free end facing the column structure 3533, allowing the convex bump 5121 to more flexibly extend into or out of the first groove 3531 and the second groove 3532.

[0168] In some embodiments, reference Figure 27 、 Figure 29 , a support ring plate 5130 may be provided on the inner circumferential wall of the annular sleeve. The food storage device may also be configured to include a cover plate 5300, and the outer circumferential wall of the cover plate 5300 is provided with a step portion 5310. The cover plate 5300 is connected to the end of the inner column 3535, for example, by fastener connection, snap connection, plug-in connection, etc. The step portion 5310 is connected to the support ring plate 5130, for example, the step portion 5310 is abutted against the support ring plate 5130. The end of the annular sleeve facing away from the support portion 5200 is connected to the wall surface of the annular groove 3536 (for example, abutted), so that the height positioning of the tripod 5000 is facilitated by the limitation of the annular sleeve, thereby reducing the shaking of the tripod 5000 during the rotation process.

[0169] In some embodiments, a colloidal layer 5320 is provided on the side of the cover 5300 facing away from the column structure 3533. The colloidal layer 5320 is used to abut against the placement surface of the food storage device, thereby reducing the possibility of the food storage device and the feeder sliding along the placement surface, and providing a buffer through the colloidal layer 5320 to reduce the risk of the food storage device and the feeder being damaged by the placement surface.

[0170] In some embodiments, reference Figure 27 、 Figure 30 The column structure 3533 includes an outer cylinder 3534 and an inner cylinder 3535. The inner cylinder 3535 is disposed within the outer cylinder 3534, with the outer circumferential wall of the inner cylinder 3535 spaced apart from the inner circumferential wall of the outer cylinder 3534. An annular sleeve is sleeved over the outer cylinder 3534, with the first groove 3531 and the second groove 3532 both disposed on the outer cylinder 3534. The food storage device may further include fasteners, which may be screws, threaded rods, etc., and the cover 5300 connects the tripod 5000 to the main body via the fasteners. In this embodiment, when fasteners or other components are used to securely connect the cover plate 5300 to the inner column 3535, the inner column 3535 is typically squeezed by the fasteners, causing radial expansion. The outer circumferential wall of the inner column 3535 is spaced apart from the inner circumferential wall of the outer tube 3534, thereby reducing the possibility of the radially expanded inner column 3535 squeezing into the outer tube 3534 and the risk of the outer tube 3534 becoming tight with the annular sleeve of the stand 5000. In this embodiment, the feeder or food storage device can conveniently and quickly install the cover plate 5300 using fasteners, while also ensuring smooth rotation of the stand 5000 after the cover plate 5300 is installed.

[0171] In some embodiments, a first stop 3537 and a second stop 3538 are provided on the bottom surface of the main body. In the storage position, the support portion 5200 abuts against the first stop 3537 to prevent the tripod 5000 from moving excessively and damaging other structures during the storage process; in the extended position, the support portion 5200 abuts against the second stop 3538 to prevent the tripod 5000 from moving excessively and damaging other structures during the deployment process.

[0172] In some embodiments, the two contact surfaces of the support portion 5200 and the body are the first contact surface and the second contact surface, and the first contact surface is provided with a first ridge 5210; and / or, the two contact surfaces of the support portion 5200 and the body are the first contact surface and the second contact surface, and the second contact surface is provided with a second ridge. Figure 27 、 Figure 29 The two contact surfaces of the support portion 5200 and the body include a first contact surface formed on the side of the support portion 5200 facing the bottom surface of the body, and a second contact surface formed on the side of the body facing the support portion 5200. Figure 27 、 Figure 29 A first ridge 5210 is provided on the first contact surface; of course, a second ridge may also be provided on the second contact surface. The first ridge 5210 and the second ridge may also be arranged to extend in a direction around the rotation axis, and the first ridge 5210 may also be used to abut the bottom surface of the main body. The first ridge 5210 and the second ridge can support the bottom surface of the main body, reducing the risk of the main body bending the tripod 5000 and reducing the probability of damage to the tripod 5000. The first ridge 5210 and the second ridge are arranged to extend in a direction around the rotation axis. Compared with extending in a radial direction along the rotation axis, the first ridge 5210 and the second ridge can reduce the effective area of ​​the first ridge 5210 and the second ridge scraping the bottom surface of the main body during rotation, thereby improving the smoothness of rotation of the tripod 5000. The first ridge 5210 and the second ridge can also be formed into an arc shape to increase the support area for the bottom surface of the main body, further reducing the risk of the main body bending the tripod 5000.

[0173] In some embodiments, reference Figure 31The main body includes a barrel 2000 and a machine body 3000. The machine body 3000 includes a mounting seat 3510, a connecting tube 3520, and a base 3530. The rotating portion 5100 is rotatably connected to the bottom surface of the base 3530. For example, the column structure 3533 and the annular groove 3536 are provided on the bottom surface of the base 3530, and the rotating portion 5100 is configured to include the annular sleeve. The mounting seat 3510 has a second chamber 3002, the barrel 2000 extends into the opening of the second chamber 3002, and the mounting seat 3510 extends into the opening at one end of the connecting tube 3520. The inner peripheral wall of the connecting tube 3520 is provided with a horizontal plate 3521. The mounting seat 3510 is fixedly connected to the horizontal plate 3521, including methods such as the mounting seat 3510 directly abutting the horizontal plate 3521 or supporting the mounting seat 3510 on the horizontal plate 3521 via a connecting column. The base 3530 extends into the opening at the other end of the connecting tube 3520. The base 3530 is fixedly connected to the horizontal plate 3521, including methods such as the base 3530 being directly connected to the horizontal plate 3521, the base 3530 being connected to the horizontal plate via other structures such as connecting columns, etc. In this embodiment, the body 3000 includes a mounting seat 3510, a connecting tube 3520, and a base 3530. The inner peripheral wall of the connecting tube 3520 is provided with a horizontal plate 3521, so that the mounting seat 3510 and the base 3530 can be easily and quickly installed on the connecting tube 3520, thereby improving the overall assembly efficiency. It should be noted that since this feeder adopts all the technical solutions of all the embodiments of the above-mentioned food storage device, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0174] The present invention also discloses a water feeder (not shown), which includes a water basin (not shown), a water pump (not shown) and the above-mentioned food storage device. The main body of the food storage device is a water tank (not shown), which is provided with an upward opening. The water basin covers the top of the water tank to cover the second opening, and the water pump is used to pump water in the water tank out of the water basin.

[0175] It should be noted that, since the present water feeder adopts all the technical solutions of all the embodiments of the above-mentioned food storage device, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0176] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A feeder, characterized in that: include: A mounting seat, wherein the mounting seat is provided with a grain outlet hole, wherein the plane where the grain outlet hole is located is inclined or parallel to the horizontal plane; the feeder is provided with a grain outlet channel, wherein the grain outlet channel is connected to the grain outlet hole; A door assembly, comprising: a door panel, the door panel being adapted to close or open the grain discharge through hole, the door panel comprising a movable side and a fixed side, wherein at a position where the door panel closes the grain discharge through hole, the movable side of the door panel is higher than the fixed side in the longitudinal direction or the movable side of the door panel is flush with the fixed side in the longitudinal direction; a second rotating shaft, the fixed side of the door panel is fixedly connected to the second rotating shaft, the second rotating shaft is rotatably connected to the mounting base, and the movable side of the door panel can rotate relative to the mounting base via the second rotating shaft; A pressure piece, which is rotatably mounted on the mounting seat, includes a first pressure portion, a second pressure portion and a first rotating shaft, the first pressure portion can apply pressure to the door panel to reduce the gap between the door panel and the grain outlet hole; the second pressure portion can apply pressure to the door panel to increase the gap between the door panel and the grain outlet hole; the first rotating shaft is rotatably connected to the mounting seat, the first pressure portion and the second pressure portion are arranged on the outer peripheral wall of the first rotating shaft, and the first pressure portion and the second pressure portion are spaced apart in the circumferential direction of the first rotating shaft.

2. The feeder according to claim 1, wherein The door plate is provided with a boss portion, and the outer peripheral wall of the boss portion is suitable for abutting against the inner peripheral wall of the grain outlet hole.

3. The feeder according to claim 2, wherein: The first pressure-applying portion includes a first pressure strip, the first pressure strip being in the shape of a rectangle extending in the axial direction of the first rotating shaft, and the first pressure strip being adapted to abut against a surface of the door panel away from the boss portion to lift the door panel; And / or, the second pressure-applying portion includes a second pressure strip, the second pressure strip is L-shaped, one end of the L-shaped strip is connected to the first rotating shaft, and the other end of the L-shaped strip extends in a direction away from the first rotating shaft, and the second pressure strip is adapted to abut against a surface of the door panel close to the boss portion to cause the door panel to sink; And / or, the first rotating shaft and the second rotating shaft are arranged on opposite sides of the grain discharge through hole; the door body assembly further includes a pressure driving device, which drives the pressure member to rotate via the first rotating shaft; the door body assembly further includes a door body driving device, which drives the door panel to rotate via the second rotating shaft; And / or, the boss portion includes a boss body and an elastic cap, the elastic cap is sleeved on the boss body, and the outer peripheral wall of the elastic cap is suitable for abutting against the inner peripheral wall of the grain outlet hole.

4. The feeder according to claim 3, wherein An elastic ring plate is provided on the outer peripheral wall of the elastic cap, and the elastic ring plate is extended along the circumferential direction of the elastic cap; And / or, the outer peripheral wall of the elastic cap is arranged obliquely, and the area of ​​the top cross section of the elastic cap is smaller than the area of ​​the bottom cross section of the elastic cap; And / or, the door panel is further provided with a connecting through-hole, the bottom of the elastic cap is provided with a connecting post and an abutment block, the abutment block is arranged on a side of the door panel facing away from the elastic cap, the connecting post passes through the connecting through-hole and is connected to the abutment block, and the abutment block abuts against the door panel; And / or, the feeder includes a barrel body and a vacuum pump, the barrel body is installed on the mounting seat, a receiving cavity for storing food is defined in the barrel body, the food outlet hole is connected to the receiving cavity, and the vacuum pump is connected to the receiving cavity.

5. A method for controlling a feeder, the method being used to control the feeder according to any one of claims 1 to 4, characterized in that: The door assembly includes a first position switch, and when the angle between the door panel and the plane where the grain discharge hole is located is less than or equal to a first preset angle, the first position switch generates first position information; the control method includes the following steps: Obtaining a door closing instruction and controlling the door panel to move toward the direction close to the grain discharge hole; In response to the first position information, the first pressure applying portion is controlled to apply pressure to the door panel.

6. The control method according to claim 5, wherein: The door assembly further includes a second position switch, and when the first pressure-applying portion reaches a preset position, the second position switch generates second position information. The control method includes the following steps: After the step of "controlling the first pressure applying portion to apply pressure to the door panel in response to the first position information"; In response to the second position information, the first pressure applying portion is controlled to stop moving.

7. The control method according to claim 6, wherein: The pressure member further includes a second pressure portion, which can apply pressure to the door panel to increase the gap between the door panel and the grain discharge hole; the door body assembly includes a third position switch, which generates third position information when the angle between the door panel and the plane where the grain discharge hole is located is greater than or equal to a second preset angle, and the second preset angle is greater than the first preset angle. The control method includes the following steps: Obtaining a door opening instruction and controlling the second pressure applying portion to apply pressure to the door panel; Controlling the door panel to move in a direction away from the grain outlet hole; In response to the third position information, the door panel is controlled to stop moving.

8. The control method according to claim 7, wherein: The pressure member also includes a first rotating shaft, which is fixedly connected to the first pressure portion. The peripheral wall of the second rotating shaft is provided with a first protrusion suitable for triggering the first position switch and the third position switch. The peripheral wall of the first rotating shaft is provided with a second protrusion suitable for triggering the second position switch.

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