Feeding mechanism and granary

By separating the slip pipe of the granary feeding mechanism from the access door, and using independent rotating shafts and positioning locking components to support the slip pipe, the problem of not being able to open the access door during feeding is solved, the function of sampling and observing the material flow is realized, and the weight of the equipment is reduced.

CN223125377UActive Publication Date: 2025-07-22JIANGSU FENGSHANG INTELLIGENT WAREHOUSING EQUIPMENT CO LTD
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Patent Information

Application Number
CN202421715008.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2025-07-22
Estimated Expiration
2034-07-18

AI Technical Summary

Technical Problem

In the existing granary feeding mechanism, the maintenance door and the sliding pipe are linked structures, which makes it impossible to open the maintenance door during the feeding process, affecting sampling and observing the material flow. The sliding pipe shaft is placed on the maintenance door, resulting in excessive weight of the equipment.

Method used

Separate the feed slip pipe from the access door, and use independent rotating shafts and positioning locking components to support the slide pipe. The independent rotating shaft components and positioning locking parts are used to realize the rotation and positioning of the slide pipe, and support the impact force of the slide pipe during the discharge process. The rotation of the access door and the slide pipe are no longer related to each other.

Benefits of technology

It realizes that the access door can be opened for sampling and observing the material flow during the feeding process, which reduces the weight of the equipment, improves the fault tolerance of the feeding process and the stability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of granaries. The feeding mechanism comprises a shell, and a feeding port and a discharging port which are matched with each other are formed in the shell; the access door assembly is hinged to the shell; the feeding elephant trunk assembly is hinged to the shell, and the feeding elephant trunk assembly is matched with the feeding port and the discharging port to form a feeding channel; and the discharge port sealing assembly is arranged on the shell and is used for closing and sealing the discharge port. The granary comprises the feeding mechanism. The utility model is used for solving the technical problem that the access door cannot be opened in the feeding process due to the fact that the access door and the articulated chute of the existing granary feeding mechanism are of a linkage structure.
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Description

Technical Field

[0001] The utility model belongs to the technical field of grain bins, and particularly relates to a feeding mechanism and a grain bin including the above feeding mechanism. Background Art

[0002] A feeding mechanism is installed at the inlet of the grain bin. After the grain bin is filled with grain, in order to ensure that the grain in the bin can be stored for a long time, it is necessary to inject inert gas or toxic gas into the grain bin to kill harmful organisms attached to the grain. At this time, it is necessary to seal the inlet of the grain bin to reach the airtight level. In addition, large grain bins are generally built in coastal and river areas, and the humidity in the air is relatively high. Therefore, the feeding port of the grain bin must also have good waterproof effect. At present, there are 3 mainstream closing methods:

[0003] (1) Airtight gate: When the feeding is completed, the eccentric block is manually tightened to push the gate plate close to the rubber sealing ring to achieve sealing. Problem: There are many structural parts, the sealing effect is poor, the waterproof effect is not good, and the components are eliminated.

[0004] (2) Manual bolt closing: After the feeding is completed, the telescopic feeding port chute is lifted, and a pressing plate is bolted to the feeding port of the bin to achieve manual closing. Problem: The operation is cumbersome;

[0005] (3) Sealed feeding port: During feeding, the sealing door is turned up to a vertical position, the inspection door is closed, and the feeding chute is installed on the inspection door and placed between the feeding port and the discharging port as the inspection door is closed, facilitating the passage of materials; when closing the bin, the inspection door is opened, the feeding chute is moved out of the housing along with the inspection door, the sealing door rotates downward and presses tightly on the discharging port, there is a rubber sealing ring around the discharging port, and the sealing door fits tightly with the sealing ring to achieve the closure of the bin. After the closure is completed, closing the inspection door and the outer housing together serves the purpose of waterproofing; the sealing door is manual, driven by a worm and worm gear reducer to rotate the sealing door, and after pressing the outlet sealing ring, relying on the self-locking function of the worm and worm gear reducer to always ensure a certain pressing force, ensuring the lasting sealing effect of the bin. Problem: Because the inspection door and the chute are linked structures, during the feeding process, there are needs such as opening the door for sampling, removing blockage faults, repairing equipment with materials, and observing the material flow situation, which cannot be operated.

[0006] Opening the door for sampling: When the grain enters and exits the bin, it is necessary to inspect the quality of the grain. Especially when storing the grain after cleaning, it is more necessary to accurately grasp the quality of the grain entering the bin. Therefore, taking a representative sample during the flowing transportation of the grain is the key to inspecting the quality of the grain. Sampling through the sealed feeding port is convenient for sampling. In addition, during the feeding process, it is necessary to observe the material flow situation at any time to facilitate timely troubleshooting. If it is possible to open the door to eliminate faults and perform maintenance with materials during the feeding process, the feeding error tolerance rate can be increased, avoiding delaying the overall feeding efficiency.

[0007] In addition, the chute pipe needs to bear a large impact force during the feeding process. When the original chute pipe rotating shaft was placed on the inspection door, in order to ensure the structural strength of the chute pipe, it was necessary to strengthen the entire inspection door, resulting in the overall weight of the inspection door being relatively heavy. Then, it was necessary to strengthen the rotating shaft of the inspection door, making the overall weight of the equipment too large. Utility Model Content

[0008] The first object of the present utility model is to provide a feeding mechanism to solve the technical problem that the inspection door and the chute pipe of the existing feeding mechanism are in a linkage structure, resulting in the inability to open the inspection door during the feeding process.

[0009] To solve the above technical problems, the present utility model adopts the following technical solutions. The feeding mechanism is characterized by comprising:

[0010] A housing, on which a matching feeding port and a discharging port are provided;

[0011] An inspection door assembly, hingedly connected to the housing;

[0012] A feeding chute pipe assembly, hingedly connected to the housing, and the feeding chute pipe assembly is respectively matched with the feeding port and the discharging port to form a feeding channel;

[0013] A discharging port sealing assembly, provided on the housing for closing and sealing the discharging port.

[0014] In order to meet the requirement of opening the inspection door during the feeding process, the present utility model separates the feeding chute pipe from the inspection door, and their rotations are no longer related to each other, effectively solving the requirement of opening the inspection door during the feeding process. In addition, the present utility model separately sets the rotating shaft of the chute pipe, and the position of the rotating shaft is closer to the chute pipe, with higher structural strength and lighter equipment weight.

[0015] To solve the technical problem of how to implement the feeding chute pipe assembly, the present utility model adopts the following technical solutions. The feeding chute pipe assembly includes:

[0016] A feeding chute pipe;

[0017] A first rotating shaft assembly, respectively connected to the feeding chute pipe and the housing, for realizing the rotation of the feeding chute pipe and supporting the feeding chute pipe assembly to resist the impact force borne by the feeding chute pipe assembly during the feeding process. The first rotating shaft assembly includes:

[0018] A first rotating shaft;

[0019] A first rotating shaft sleeve, sleeved on the first rotating shaft, and the first rotating shaft sleeve is connected to a first connecting plate provided on the housing;

[0020] The second rotating shaft sleeve is sleeved on the second rotating shaft, and the second rotating shaft sleeve is connected to the second connecting plate provided on the feed chute.

[0021] The utility model uses the first connecting plate on the housing, the second connecting plate on the feed chute, the first rotating shaft, and the first and second rotating shaft sleeves to hinge-connect the feed chute to the housing separately, with a simple structure and convenient processing. The utility model separately sets a first rotating shaft assembly for the feed chute, so that the rotation of the inspection door and the feed chute is no longer interrelated, effectively solving the need to open the inspection door during the feeding process.

[0022] To solve the technical problem of how to position the feed chute, the utility model adopts the following technical solution. A positioning and locking assembly is provided between the feed chute and the housing, which is used to support the feed chute and resist the impact force borne by the feed chute during the feeding process. The positioning and locking assembly includes:

[0023] A positioning plate is vertically arranged outside the feed chute; a locking hole is provided on the positioning plate.

[0024] A locking member is rotatably arranged on the housing, and the locking member cooperates with the positioning plate.

[0025] Rotate the locking member so that the locking member enters the locking hole on the positioning plate to realize the locking of the positioning plate and the feed chute; rotate the locking member in the reverse direction so that the locking member disengages from the locking hole on the positioning plate, and the feed chute can rotate.

[0026] The positioning and locking assembly of the utility model has two functions. One is to position the rotating feed chute; the other is to form a hanging support of the housing for the feed chute by using the locking member on the inner wall of the housing top plate and the positioning plate on the feed chute, effectively resisting the large impact force borne by the chute during the feeding process and ensuring the stability of the feeding channel.

[0027] To solve the technical problem of the support strength of the feed chute, the utility model adopts the following technical solution. A support assembly is provided between the feed chute and the housing, which is used to support the feed chute and resist the impact force borne by the feed chute during the feeding process. The support assembly includes:

[0028] A support plate is arranged on the feed chute.

[0029] A support seat is arranged on the housing and cooperates with the support plate.

[0030] The feed chute rotates so that the support plate is located on the support seat to support the feed chute.

[0031] The housing of the present utility model supports the feed chute at three positions. One is to support the feed chute by using the first rotating shaft assembly; the second is to use the positioning and locking member; and the third is to use the support assembly. The three form an effective support for the housing to the feed chute in a trinity manner.

[0032] To solve the technical problem of how to implement the access door assembly, the present utility model adopts the following technical solutions. The access door assembly includes:

[0033] An access door;

[0034] A second rotating shaft assembly, which is arranged on the housing and is rotatably connected to the access door. The second rotating shaft assembly includes:

[0035] A first mounting plate, which is arranged on the housing;

[0036] A second mounting plate, which is arranged on the access door. Second rotating shaft mounting holes are arranged at the corresponding ends of the second mounting plate and the first mounting plate;

[0037] A second rotating shaft, which is arranged in the second rotating shaft mounting hole. The present utility model uses the first mounting plate arranged on the housing, the second mounting plate arranged on the access door, and the second rotating shaft to hinge the access door to the housing separately, with a simple structure and convenient processing.

[0038] To solve the technical problem of locking the access door, the present utility model adopts the following technical solutions. A locking member is arranged on the access door and the housing, and the opening and locking of the access door are realized by using the locking member.

[0039] To solve the technical problem of how to implement the locking member, the present utility model adopts the following technical solutions. The locking member includes:

[0040] A locking plate, which is arranged on the access door and has a locking hole arranged thereon;

[0041] A locking seat, which is arranged on the housing and includes a mounting seat, a locking rotating shaft arranged on the mounting seat, and a locking member arranged on the locking rotating shaft;

[0042] Rotate the locking member so that the locking member of the locking seat enters the locking hole on the locking plate to realize the locking of the access door;

[0043] Rotate the locking member in the reverse direction so that the locking member of the locking seat disengages from the locking hole on the locking plate, and the access door can be rotated and opened. The present utility model designs the locking member as a rotating locking structure, which is convenient to use.

[0044] To solve the technical problem of how to implement the discharge port sealing assembly, the present utility model adopts the following technical solutions. The discharge port sealing assembly includes:

[0045] A sealing door for sealing the discharge opening;

[0046] A seal provided on the sealing door or the discharge opening for sealing the sealing door and the discharge opening;

[0047] A third rotating shaft, both ends of which are respectively arranged on the housing through bearings, and the third rotating shaft is connected to the sealing door via a connecting rod;

[0048] A driving member connected to the third rotating shaft.

[0049] The driving member drives the third rotating shaft and the connecting rod on the third rotating shaft to rotate. The rotation of the connecting rod drives the sealing door to rotate. When it rotates upward, the discharge opening is opened; when it rotates downward, the treatment opening is closed. When feeding, the sealing door is in the open state; after the feeding is completed, first rotate the feeding chute out of the housing, and the sealing door rotates downward to close the discharge opening.

[0050] To solve the technical problem that the working conditions inside the housing cannot be known, the present utility model adopts the following technical solution. An observation port is provided on the housing for observing the working conditions inside the housing;

[0051] The observation window is hingedly connected to the housing;

[0052] A locking member is provided on the observation window to realize the opening and locking of the observation window by using the locking member.

[0053] To further improve the technical solution of the present utility model, the feeding chute is a conical tube; the feeding port is conical.

[0054] The second object of the present utility model is to provide a granary, on which the feeding mechanism described in any one of the above is provided. Description of the Drawings

[0055] Figure 1 Is a three-dimensional structural schematic diagram of the feeding mechanism of the present utility model Figure 1 (Maintenance door closed);

[0056] Figure 2 Is a three-dimensional structural schematic diagram of the feeding mechanism of the present utility model Figure 2 (Maintenance door closed);

[0057] Figure 3 Is a side view of the feeding mechanism of the present utility model (removing the maintenance door);

[0058] Figure 4 Is a top view of the feeding mechanism of the present utility model (maintenance door closed);

[0059] Figure 5 Is a three-dimensional structural schematic diagram of the feeding mechanism of the present utility modelFigure 1 (The feed chute is located outside the housing);

[0060] Figure 6 is a schematic three-dimensional structure of the feeding mechanism of the present utility model Figure 2 (The feed chute is located outside the housing);

[0061] Figure 7 is a top view of the feeding mechanism of the present utility model (the feed chute is located outside the housing);

[0062] Figure 8 is a side view of the feeding mechanism of the present utility model (the feed chute is located outside the housing);

[0063] Reference numerals:

[0064] 10 Feeding mechanism;

[0065] 100 Housing; 101 Feed inlet; 102 Discharge outlet; 103 Observation port; 104 Locking member;

[0066] 200 Feed chute assembly; 210 Feed chute; 220 First rotating shaft assembly; 221 First rotating shaft; 222 First rotating shaft sleeve; 223 Second rotating shaft sleeve; 224 First connecting plate; 225 Second connecting plate;

[0067] 300 Maintenance door assembly; 310 Maintenance door; 320 Second rotating shaft assembly; 321 First mounting plate; 322 Second mounting plate; 323 Second rotating shaft; Locking member 330; Locking plate 331, Locking seat 332; Mounting seat 3321; Locking rotating shaft 3322; Locking member 3323;

[0068] 400 Discharge port sealing assembly; 401 Sealing door; 402 Third rotating shaft; 403 Bearing; 404 Link; 405 Driving member; 4051 Worm and worm gear reducer; 4052 Operating handwheel; 406 Sealing member;

[0069] 500 Positioning and locking assembly; 510 Positioning plate; Locking hole 511; Locking member 520;

[0070] 600 Support assembly; 610 Support plate, Support seat 620. Detailed implementation manners

[0071] The present utility model will be further illustrated below in conjunction with the accompanying drawings and specific implementation manners.

[0072] Example 1

[0073] As Figure 1-8 shown, the feeding mechanism 10 includes a housing 100, a feed chute assembly 200, and a maintenance door assembly 300.

[0074] The housing 100 is preferably a square body structure. The top plate of the housing 100 is installed with a feed inlet 101, as Figure 1 , Figure 2 , Figure 3 shown. The feed inlet 101 is preferably conical. As Figure 2 shown, a discharge outlet 102 is machined on the bottom plate of the housing 100.

[0075] In one embodiment, in order to observe the working conditions inside the housing 100, an observation port 103 is designed on the housing 100, as Figure 1 , Figure 2 shown. Specifically, the observation window 103 is hingedly connected to the housing 100.

[0076] In order to lock the observation window on the housing, a locking member 104 is installed on the observation window 103. The locking member 104 includes a locking plate and a locking seat. The locking plate is installed on the inspection door, and a locking hole is installed on the locking plate; the locking seat is installed on the housing and includes a mounting seat. A locking rotating shaft is assembled on the mounting seat. The locking rotating shaft installs the locking member. Rotate the locking member so that the locking member of the locking seat enters the locking hole on the locking plate to realize the locking of the inspection door; rotate the locking member in the reverse direction so that the locking member of the locking seat disengages from the locking hole on the locking plate, and the inspection door can be rotated and opened.

[0077] As Figure 8 shown, a first connecting plate 224 is installed on the inner side wall of the corner of the housing 100. The first connecting plates 224 are arranged at intervals from top to bottom. The first connecting plates 224 are horizontally arranged and are preferably triangular structures.

[0078] As Figure 3 shown, the feed chute assembly 200 is hingedly connected to the housing 100. The upper part of the feed chute assembly 200 is matched with the feed inlet 101, and the lower part of the feed chute assembly 200 is matched with the discharge outlet 102 to form a feed channel.

[0079] In one embodiment, as Figure 3 , Figure 8 shown, the feed chute assembly 200 includes a feed chute 210 and a first rotating shaft assembly 220. The feed chute 210 is preferably a conical tube. A second connecting plate 225 is installed on the feed chute 210. The second connecting plates 225 are arranged at intervals from top to bottom. The second connecting plates 225 are horizontally arranged and are preferably fan-shaped structures.

[0080] The first rotating shaft assembly 220 is respectively connected to the feed chute 210 and the housing 100 for realizing the rotation of the feed chute. Specifically, the first rotating shaft assembly 220 includes a first rotating shaft 221, a first rotating shaft sleeve 222, and a second rotating shaft sleeve 223.

[0081] The first rotating shaft sleeve 222 is sleeved on the first rotating shaft 221, and the first rotating shaft sleeve 222 is connected to the first connecting plate 224.

[0082] The second rotating shaft sleeve 223 is sleeved on the second rotating shaft 221. The second rotating shaft sleeve 223 is located above the corresponding first rotating shaft sleeve 222. The second rotating shaft sleeve 223 is connected to the second connecting plate 225.

[0083] The utility model utilizes the first connecting plate on the housing, the second connecting plate on the feed chute, the first rotating shaft, and the first and second rotating shaft sleeves to hinge-connect the feed chute to the housing separately, with a simple structure and convenient processing. The utility model separately sets a first rotating shaft assembly for the feed chute, so that the rotation of the inspection door and the feed chute is no longer mutually related, effectively solving the need to open the inspection door during the feeding process.

[0084] In one embodiment, when the feed chute rotates into the housing, in order to position the feed chute, a positioning and locking assembly 500 is designed on the feed chute 210 and the housing 100.

[0085] Specifically, as Figure 3 , Figure 8 shown, the positioning and locking assembly 500 includes a positioning plate 510 and a locking member 520. The positioning plate 510 is vertically installed on the outer side of the feed chute 210; a locking hole 511 is installed on the positioning plate 510. The locking member 520 is rotatably installed on the housing 100, and the locking member 520 cooperates with the positioning plate 510.

[0086] Rotate the locking member so that the locking member enters the locking hole on the positioning plate to realize the locking of the positioning plate and the feed chute; rotate the locking member in the reverse direction so that the locking member disengages from the locking hole on the positioning plate, and the feed chute can rotate.

[0087] The positioning and locking assembly of the utility model has two functions. One is to position the rotating feed chute; the other is to form a hanging support of the housing for the feed chute by using the locking member on the inner wall of the housing top plate and the positioning plate on the feed chute, effectively resisting the large impact force borne by the chute during the feeding process and ensuring the stability of the feeding channel.

[0088] In one embodiment, a support assembly 600 is installed on the feed chute 210 and the housing 100 to support the feed chute.

[0089] Specifically, as Figure 8 shown, the support assembly 600 includes a matching support plate 610 and a support seat 620. The support plate 610 is installed on the feed chute 210. The support seat 620 is installed on the housing 100. The support seat 620 cooperates with the support plate 610. When the feed chute rotates, the support plate is located on the support seat to support the feed chute.

[0090] The housing of the present utility model supports the feed chute at three positions. Firstly, the first rotating shaft assembly is used to support the feed chute; secondly, a positioning and locking member is used; thirdly, a support assembly is used. The three form an effective support for the feed chute by the housing. The first rotating shaft assembly, the positioning and locking assembly, and the support assembly all play a supporting role for the feed chute to resist the impact force borne by the chute during the feeding process.

[0091] The maintenance door assembly 300 is hingedly connected to the housing 100. In one embodiment, as Figure 2 shown, the maintenance door assembly 300 includes a maintenance door 310 and a second rotating shaft assembly 320.

[0092] The second rotating shaft assembly 320 is installed on the housing 100, and the second rotating shaft assembly 320 is rotatably connected to the maintenance door 310. Specifically, the second rotating shaft assembly 320 includes a first mounting plate 321, a second mounting plate 322, and a second rotating shaft 323.

[0093] The first mounting plate 321 is installed on the housing; the second mounting plate 322 is installed on the maintenance door, and corresponding end portions of the second mounting plate and the first mounting plate are provided with second rotating shaft mounting holes; the second rotating shaft 323 is installed in the second rotating shaft mounting holes.

[0094] The present utility model uses the first mounting plate provided on the housing, the second mounting plate provided on the maintenance door, and the second rotating shaft to hinge the maintenance door to the housing separately, with a simple structure and convenient processing.

[0095] In one embodiment, a locking member 330 is installed between the maintenance door and the housing. Specifically, as Figure 6 shown, the locking member 330 includes a locking plate 331 and a locking seat 332. The locking plate 331 is installed on the maintenance door, and a locking hole 3310 is installed on the locking plate. The locking seat 332 is installed on the housing and includes a mounting seat 3321 installed on the housing 100. A locking rotating shaft 3322 is installed on the mounting seat, and a locking member 3323 is installed on the locking rotating shaft 3322.

[0096] Rotate the locking member so that the locking member of the locking seat enters the locking hole on the locking plate to realize the locking of the maintenance door; rotate the locking member in the reverse direction so that the locking member of the locking seat disengages from the locking hole on the locking plate, and the maintenance door can be rotated and opened.

[0097] An outlet sealing assembly 400 is installed on the housing 100 for closing and sealing the outlet 102. In one embodiment, as Figure 3 、 Figure 8 shown, the outlet sealing assembly 400 includes a sealing door 401, a third rotating shaft 402, a bearing 403, a connecting rod 404, and a driving member 405.

[0098] The sealing door 401 is used to close and seal the discharge port 102. Both ends of the third rotating shaft 402 are respectively installed on the housing 100 through bearings 403, and the third rotating shaft 402 is connected to the sealing door 401 via a connecting rod 404. The driving member 405 is connected to the third rotating shaft. As Figure 4 shown, the driving member 405 includes a worm and worm gear reducer 4051. An operating handwheel 4052 is installed on the worm and worm gear reducer 4051. The worm and worm gear reducer 4051 can be replaced with an electric push rod structure. The operating handwheel 4052 can be replaced with a motor.

[0099] The driving member drives the third rotating shaft and the connecting rod on the third rotating shaft to rotate. The rotation of the connecting rod drives the sealing door to rotate. When rotating upward, the discharge port is opened; when rotating downward, the processing port is closed. When feeding, the sealing door is in the open state; after the feeding is completed, first rotate the feeding chute out of the housing, and the sealing door rotates downward and closes the discharge port.

[0100] In one embodiment, as Figure 6 shown, there is a seal 406 on the sealing door or the discharge port. The seal 406 is used to seal the sealing door and the discharge port.

[0101] In order to solve the need to open the inspection door during the feeding process, the present utility model separates the feeding chute from the inspection door, and the rotations of the two are no longer related to each other, effectively solving the need to open the inspection door during the feeding process. In addition, the present utility model separately sets the chute rotating shaft, and the position of the rotating shaft is closer to the chute, with higher structural strength and lighter equipment weight.

[0102] Embodiment 2

[0103] A granary, on which the feeding mechanism of any one of Embodiment 1 is installed.

[0104] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. Feeding mechanism, characterized in that, Comprising: A housing, on which a matching feed inlet and a discharge outlet are provided; An access door assembly, hingedly connected to the housing; A feed chute assembly, hingedly connected to the housing, and the feed chute assembly is respectively matched with the feed inlet and the discharge outlet to form a feed channel; A discharge outlet sealing assembly, provided on the housing for closing and sealing the discharge outlet.

2. The feeding mechanism according to claim 1, wherein The feed chute assembly includes: A feed chute; A first rotating shaft assembly, respectively connected to the feed chute and the housing, for realizing the rotation of the feed chute and supporting the feed chute assembly, resisting the impact force borne by the feed chute assembly during the feeding process. The first rotating shaft assembly includes: A first rotating shaft; A first rotating shaft sleeve, sleeved on the first rotating shaft, and the first rotating shaft sleeve is connected to a first connecting plate provided on the housing; A second rotating shaft sleeve, sleeved on the second rotating shaft, and the second rotating shaft sleeve is connected to a second connecting plate provided on the feed chute.

3. The feeding mechanism according to claim 2, characterized in that, A positioning and locking assembly is provided between the feed chute and the housing for supporting the feed chute and resisting the impact force borne by the feed chute during the feeding process; The positioning and locking assembly includes: A positioning plate, vertically arranged outside the feed chute; a locking hole is provided on the positioning plate; A locking member, rotatably arranged on the housing, and the locking member is matched with the positioning plate; Rotate the locking member so that the locking member enters the locking hole on the positioning plate to realize the locking of the positioning plate and the feed chute; rotate the locking member in the reverse direction so that the locking member disengages from the locking hole on the positioning plate, and the feed chute can rotate.

4. The feeding mechanism according to claim 3, wherein, A support assembly is provided between the feed chute and the housing for supporting the feed chute and resisting the impact force borne by the feed chute during the feeding process; The support assembly includes: A support plate, provided on the feed chute; A support seat, provided on the housing, and is matched with the support plate; The feed chute rotates so that the support plate is located on the support seat to support the feed chute.

5. The feeding mechanism according to claim 1, characterized in that The access door assembly includes: An access door; A second rotating shaft assembly, provided on the housing, and the second rotating shaft assembly is rotatably connected to the access door; the second rotating shaft assembly includes: A first mounting plate, provided on the housing; A second mounting plate, provided on the access door, and second rotating shaft mounting holes are provided at the corresponding ends of the second mounting plate and the first mounting plate; A second rotating shaft, arranged in the second rotating shaft mounting hole.

6. The feeding mechanism according to claim 5, characterized in that, A locking member is provided between the access door and the housing.

7. The feeding mechanism according to claim 6, characterized in that, The locking member includes: A locking plate, provided on the access door, and a locking hole is provided on the locking plate; A locking seat, provided on the housing, including a mounting seat, a locking rotating shaft provided on the mounting seat, and a locking member provided on the locking rotating shaft; Rotate the locking member so that the locking member of the locking seat enters the locking hole on the locking plate to realize the locking of the access door; Rotate the locking member in the reverse direction so that the locking member of the locking seat disengages from the locking hole on the locking plate, and the access door can rotate and open.

8. The feeding mechanism according to claim 1, characterized in that, The discharge outlet sealing assembly includes: A sealed door for sealing the discharge opening; A seal provided on the sealed door or the discharge opening for sealing the sealed door and the discharge opening; A third rotating shaft, the two ends of which are respectively arranged on the housing through bearings, and the third rotating shaft is connected to the sealed door via a connecting rod; A driving member connected to the third rotating shaft.

9. The feeding mechanism according to claim 1, wherein An observation port is provided on the housing for observing the working conditions inside the housing; The observation window is hingedly connected to the housing; A locking member is provided on the observation window.

10. The feeding mechanism according to claim 2, characterized in that, The feed chute is a conical tube; the feed inlet is conical.

11. Grain bin, characterized in that, The feed mechanism according to any one of claims 1-10 is provided on the granary.