Automatic exhaust valve for shallow silo

Abstract

The utility model aims at providing a shallow round warehouse automatic exhaust valve which can be opened and closed automatically according to the pressure in the shallow round warehouse. The utility model discloses a pipeline, mounting panel, closure door and connecting frame, the mounting panel fixed connection in the pipeline, the closure door is pivoted in the mounting panel, one end of connecting frame is fixedly connected with the inner wall of the pipeline, the connecting frame is connected with the middle part of the closure door through the elastic member, the lower portion of mounting panel is provided with the sealing ring which is sealed with the closure door. The utility model is applied to the technical field of shallow round warehouse air pressure regulation.

Description

Technical Field

[0001] This utility model relates to the technical field of shallow circular chamber air pressure regulation, and in particular to an automatic exhaust valve for a shallow circular chamber. Background Technology

[0002] For a long time, shallow round silos have had a relatively simple structure and extremely poor airtightness. Whenever fumigation or nitrogen-filled controlled atmosphere storage is carried out in grain depots, difficulties arise due to insufficient airtightness of the silo doors. Door airtightness refers to the silo door's sealing performance against the gas inside the silo. As a crucial part of the grain depot, the airtightness of the shallow round silo door is self-evident. During grain storage, air temperature affects silo temperature, and silo temperature affects grain temperature. The degree to which air temperature affects silo temperature mainly depends on the silo's thermal insulation performance, which is closely related to the door airtightness. Poor door airtightness allows for gas and moisture exchange with the external environment. The high external temperature raises the silo temperature, and under the influence of wind and thermal pressure differences, moisture seeps into the grain through the door gaps, affecting the local temperature and moisture content of the grain pile. If not addressed promptly, this can lead to the grain pile heating up and becoming moldy.

[0003] Currently, the airtightness protection of shallow circular chambers mainly relies on insulated sealing doors. The sealing door structure requires manual opening and closing by staff. During the controlled atmosphere process in the shallow circular chamber, as the pressure inside the chamber gradually increases, the pressure inside the chamber is automatically adjusted at any time. When the controlled atmosphere pressure is too high, the controlled atmosphere membrane is easily ruptured by the gas, affecting the controlled atmosphere effect of the shallow circular chamber. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automatic exhaust valve for shallow circular compartments that can automatically open and close according to the pressure inside the compartment.

[0005] The technical solution adopted by this utility model is as follows: This utility model includes a pipe, a mounting plate, a sealing door, and a connecting frame. The mounting plate is fixedly connected to the inside of the pipe, the sealing door is pivotally connected to the mounting plate, one end of the connecting frame is fixedly connected to the inner wall of the pipe, and the other end of the connecting frame is connected to the middle of the sealing door through an elastic element. A sealing ring that cooperates with the sealing door to seal is provided below the mounting plate.

[0006] Furthermore, each end of the elastic element is provided with a snap-fit ​​block, and each snap-fit ​​block is provided with a hook.

[0007] Furthermore, a first connecting buckle is provided in the middle of the closed door, and the first connecting buckle is connected to the hook buckle.

[0008] Furthermore, the extended section of the connecting frame is provided with a second connecting buckle, which is connected to the hook buckle.

[0009] Furthermore, the upper edge of the sealing ring is tightly fitted to the lower part of the mounting plate.

[0010] Furthermore, the closed door has a raised edge that fits snugly against the sealing ring.

[0011] The beneficial effects of this utility model are as follows: When the shallow circular chamber is under regulated atmosphere, the internal air pressure increases, and the gas inside the chamber pushes the closed door, causing the closed door to rotate around the lower part of the mounting plate. The convex edge of the closed door separates from the sealing ring, and the gas inside the chamber flows out of the shallow circular chamber along the gap to achieve a pressure relief effect, thereby realizing automatic pressure regulation and avoiding the rupture of the regulated atmosphere film due to excessive regulated atmosphere pressure. When the pressure inside the chamber decreases, under the influence of the elastic element and the external atmospheric pressure, the closed door rotates and adheres tightly to the sealing ring to form a sealing effect, thus isolating the gas flow. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the present invention;

[0014] Figure 3 This is a structural schematic diagram of the elastic element of this utility model.

[0015] In the diagram: 1. Pipe; 2. Mounting plate; 3. Enclosed door; 4. Connecting bracket; 5. Elastic element; 6. Buckle block; 7. Hook; 8. First connecting buckle; 9. Second connecting buckle; 10. Protruding edge. Detailed Implementation

[0016] like Figures 1 to 3 As shown, in this embodiment, the present invention includes a pipe 1, a mounting plate 2, a sealing door 3, and a connecting frame 4. The mounting plate 2 is fixedly connected to the inside of the pipe 1, the sealing door 3 is pivotally connected to the mounting plate 2, one end of the connecting frame 4 is fixedly connected to the inner wall of the pipe 1, and the other end of the connecting frame 4 is connected to the middle of the sealing door 3 through an elastic element 5. A sealing ring that cooperates with the sealing door 3 to seal is provided below the mounting plate 2.

[0017] Specifically, the mounting plate 2 is installed at the door and side wall outlet of the shallow circular chamber. When the shallow circular chamber is under gas regulation, when the pressure of the shallow circular chamber increases, the gas inside the chamber pushes the sealing door 3, causing the sealing door 3 to rotate around the lower part of the mounting plate 2. The protruding edge 10 of the sealing door 3 separates from the sealing ring, and the gas inside the chamber flows out of the shallow circular chamber along the gap to achieve the pressure relief effect, realize automatic pressure regulation, and avoid the gas regulation film being broken due to excessive gas regulation pressure. When the pressure inside the chamber decreases, under the communication of the elastic element 5 and the external atmospheric pressure, the sealing door 3 rotates and sticks tightly to the sealing ring to form a sealing effect, and isolates the gas flow.

[0018] Among them, the elastic element 5 is a tension spring. Under normal conditions, the elastic force of the elastic element 5 keeps the sealing door and the sealing ring in a tight state, isolating the interaction of internal and external gases, and the outer wall of the sealing ring is in contact with the inner wall of the pipeline.

[0019] In this embodiment, each end of the elastic element 5 is provided with a snap-fit ​​block 6, and each snap-fit ​​block 6 is provided with a hook 7.

[0020] Specifically, the elastic element 5 is connected to the corresponding first connecting buckle 8 or second connecting buckle 9 via the hook 7 structure, which is convenient for installation and simplifies the daily maintenance process for staff. Moreover, under the pulling force of the elastic element 5, the hook 7 remains connected to the first connecting buckle 8 and the second connecting buckle 9, resulting in high connection stability.

[0021] In this embodiment, a first connecting buckle 8 is provided in the middle of the closed door 3, and the first connecting buckle 8 is snapped together with the hook 7.

[0022] Specifically, the first connecting buckle 8 has a locking hole that engages with the hook 7. The first connecting buckle 8 is located in the middle of the closed door 3, so that when the elastic member 5 pulls the closed door 3 to fit tightly against the sealing ring, there is no need to apply excessive spring-loaded pulling force.

[0023] In this embodiment, the extended section of the connecting frame 4 is provided with a second connecting buckle 9, which is snapped together with the hook 7.

[0024] Specifically, the second connecting buckle 9 has a locking hole that engages with the hook 7.

[0025] In this embodiment, the upper edge of the sealing ring is tightly fitted to the lower part of the mounting plate 2.

[0026] In this embodiment, the closed door 3 has a raised edge 10, which fits snugly against the sealing ring.

[0027] Specifically, the raised edge 10 structure is set along the edge of the sealing door. When the internal and external air pressures are relatively balanced, the elastic element 5 pulls the sealing door 3, so that the raised edge 10 and the sealing ring are tightly attached to block the flow of internal and external gas.

[0028] The working principle of this utility model:

[0029] When the pressure in the shallow circular chamber increases, the gas inside the chamber pushes the sealing door 3, causing the sealing door 3 to rotate around the lower part of the mounting plate 2. The protruding edge 10 of the sealing door 3 separates from the sealing ring, and the gas inside the chamber flows out of the shallow circular chamber along the gap to achieve a pressure relief effect, realizing automatic pressure regulation and avoiding the rupture of the modified atmosphere film due to excessive pressure. When the pressure inside the chamber decreases, under the influence of the elastic element 5 and the external atmospheric pressure, the sealing door 3 rotates and adheres tightly to the sealing ring to form a sealing effect, isolating the gas flow.

[0030] Although the embodiments of this utility model are described with reference to actual solutions, they do not constitute a limitation on the meaning of this utility model. For those skilled in the art, modifications to the implementation schemes and combinations with other schemes based on this specification are obvious.

Claims

1. An automatic exhaust valve for a shallow circular compartment, characterized in that: The device includes a pipe (1), a mounting plate (2), a sealing door (3), and a connecting frame (4). The mounting plate (2) is fixedly connected to the inside of the pipe (1), and the sealing door (3) is pivotally connected to the mounting plate (2). One end of the connecting frame (4) is fixedly connected to the inner wall of the pipe (1), and the other end of the connecting frame (4) is connected to the middle of the sealing door (3) through an elastic element (5). A sealing ring that cooperates with the sealing door (3) is provided below the mounting plate (2).

2. The shallow circular chamber automatic exhaust valve according to claim 1, characterized in that: Each end of the elastic element (5) is provided with a snap block (6), and each snap block (6) is provided with a hook (7).

3. The shallow circular chamber automatic exhaust valve according to claim 2, characterized in that: The closed door (3) is provided with a first connecting buckle (8) in the middle, and the first connecting buckle (8) is snapped together with the hook (7).

4. The shallow circular chamber automatic exhaust valve according to claim 2, characterized in that: The extended section of the connecting frame (4) is provided with a second connecting buckle (9), which is snapped together with the hook (7).

5. The shallow circular chamber automatic exhaust valve according to claim 1, characterized in that: The upper edge of the sealing ring is in close contact with the lower part of the mounting plate (2).

6. The shallow circular chamber automatic exhaust valve according to claim 1, characterized in that: The closed door (3) has a raised edge (10) that fits snugly against the sealing ring.

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