A conveniently adjustable airtight ventilation opening for a grain bin

Abstract

This utility model provides an easily adjustable sealed ventilation opening for grain silos, including a vent shell, a preliminary sealing cover, a connecting hinge, a ventilation duct, a sealing adjustment mechanism, a ventilation pipe cover, a pipe fixing block, a fixing clamp, and a connecting shaft. The preliminary sealing cover is installed on the front end of the vent shell, and the preliminary sealing cover is connected to the vent shell via the connecting hinge. A ventilation duct is installed inside the vent shell, and a ventilation pipe cover is installed on the front end of the ventilation duct. This design solves the problem that the original sealed ventilation opening for grain silos was cumbersome to install and that the clamping force could not be adjusted according to the specific situation of the vent cover. This utility model has a reasonable structure. Through the cooperation of the sealing adjustment mechanism and the limiting ratchet, it is more convenient and quick to open and close the ventilation opening without the need for additional personnel. Moreover, the clamping force can be adjusted according to the actual situation of each ventilation opening, thereby ensuring the airtightness of each ventilation opening.

Description

Technical Field

[0001] This utility model is an easily adjustable sealed ventilation opening for grain storage, belonging to the technical field of grain storage doors. Background Technology

[0002] Granaries are specialized buildings used to store large quantities of grain. my country, with its vast arable land, is a major grain-producing country. Grain production and storage have a long history, and grain storage is a continuation of agricultural cultivation. Storage technology has developed alongside agriculture. In the modern era, with the development of primitive agriculture, agricultural production reached a certain scale, resulting in a grain surplus. Grain processing gradually evolved into storage, and granaries are a crucial component of grain storage technology.

[0003] Chinese patent CN217925554U proposes an adjustable airtight grain silo door. It uses a fixed frame in conjunction with a base frame to facilitate the installation of the door panel and the filling plate. It also facilitates the subsequent connection of the door panel to the grain silo door frame. The installation is convenient. However, the airtight ventilation opening of the grain silo is relatively troublesome to install, and the clamping force cannot be adjusted according to the specific situation of the ventilation opening cover. There is an urgent need for an easily adjustable airtight ventilation opening for grain silos to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an easily adjustable sealed ventilation opening for grain storage, so as to solve the problems mentioned in the background art. The utility model has a reasonable structure. Through the cooperation of the sealing adjustment mechanism and the limiting ratchet, it is more convenient and quick to open and close the ventilation opening without the need for additional personnel. Moreover, the clamping force can be adjusted according to the actual situation of each ventilation opening, thereby ensuring the airtightness of each ventilation opening.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an easily adjustable sealed ventilation opening for grain storage, comprising a ventilation opening shell, a preliminary sealing cover, a connecting hinge, a ventilation duct, a sealing adjustment mechanism, a ventilation pipe cover, pipe fixing blocks, a fixing clamp, and a connecting shaft. The preliminary sealing cover is installed on the front end face of the ventilation opening shell, and the preliminary sealing cover is connected to the ventilation opening shell via a connecting hinge. A ventilation duct is installed inside the ventilation opening shell, and a ventilation pipe cover is installed on the front end face of the ventilation duct. Four pipe fixing blocks are installed on the circumferential surface of the ventilation duct, and a fixing bracket is installed on the upper surface of the ventilation duct. A connecting shaft is provided on the upper surface of the ventilation pipe cover, and a fixing bracket is installed on the circumferential surface of the ventilation duct. There are four sealing adjustment mechanisms, each including a sealing adjustment seat, a drive shaft seat, a drive handle, an adjustment guide rail, an adjustment screw, a sealing clamping plug, an adjustment stabilizing plate, a fixing nut, and a drive shaft. Four sealing adjustment seats are installed on the circumferential surface of the ventilation duct. A drive shaft seat is installed on the outer surface of each sealing adjustment seat. A drive handle is installed on the inner side of the drive shaft seat. An adjustment guide rail is installed inside the drive shaft seat. An adjustment screw is installed on the inner side of the adjustment guide rail. Two fixing nuts are installed on the circumferential surface of the adjustment screw. Two adjustment stabilizing plates are installed on the circumferential surface of the adjustment screw. A drive shaft is installed on the inner side of the sealing adjustment seat. A sealing clamping plug is installed at one end of the adjustment screw.

[0006] Furthermore, a pull handle is installed on the front end face of the preliminary sealing cover, and a cover handle is installed on the front end face of the ventilation pipe cover.

[0007] Furthermore, two connecting plates are installed on the circumferential surface of the connecting shaft. The two connecting plates are located at the left and right ends of the connecting shaft, respectively, and the rear end faces of the two connecting plates are fixedly connected to the fixing clamp.

[0008] Furthermore, a limiting shaft is installed at the right end of the connecting shaft, a limiting ratchet is installed on the circumferential surface of the limiting shaft, a limiting block is installed on the front end face of the fixing clamp, the limiting block is connected to the fixing clamp by a hinge, and the limiting block and the limiting ratchet mesh with each other.

[0009] Furthermore, the sealed adjustment seat is fixed to the ventilation duct by bolts, the drive shaft seat, the adjustment guide rail and the drive handle are connected by the drive shaft, the adjustment stabilizing plate is located on both ends of the two adjustment guide rails, the two fixing nuts are located on the outer surface of the corresponding adjustment stabilizing plate, and the adjustment screw is connected to the adjustment stabilizing plate and the fixing nuts by threads.

[0010] The beneficial effects of this utility model are as follows: This utility model provides an easily adjustable sealed ventilation opening for grain storage. Because it incorporates a sealed adjustment seat, drive handle, adjustment guide rail, adjustment screw, sealed clamping plug, adjustment stabilizing plate, and drive shaft, when the ventilation pipe cover is opened, the limiting ratchet rotates along with the limiting shaft, and the limiting block restricts the counter-clockwise rotation of the limiting shaft, thus preventing the ventilation pipe cover from closing. To close the ventilation pipe cover, simply pull open the limiting block to re-close it. Then, pull the drive handle to rotate the adjustment guide rail until the sealed clamping plug presses against the surface of the ventilation pipe cover. Furthermore, the position of the sealed clamping plug can be adjusted using a fixing nut according to the actual condition of the ventilation pipe cover, thereby adjusting the sealing degree of the ventilation pipe cover. Attached Figure Description

[0011] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of an easily adjustable sealed ventilation opening for a grain silo according to the present invention. Figure 2 This is a three-dimensional schematic diagram of a sealed ventilation duct for a grain warehouse that is easy to adjust, according to the present invention. Figure 3 This is a connection diagram of an easily adjustable sealed ventilation opening adjustment mechanism for a grain warehouse according to the present invention. Figure 4 This is a schematic diagram of the connection of a ratchet for limiting the airtight ventilation opening of a grain silo, which is easy to adjust according to this utility model. In the diagram: 1-vent housing, 2-initial sealing cover, 21-pull handle, 3-connecting hinge, 4-ventilation duct, 5-sealing adjustment mechanism, 51-sealing adjustment seat, 52-drive shaft seat, 53-drive handle, 54-adjusting guide rail, 55-adjusting screw, 56-sealing clamping plug, 57-adjusting stabilizing plate, 58-fixing nut, 59-drive shaft, 6-ventilation pipe cover, 61-pipe cover handle, 7-pipe fixing block, 8-fixing clamp, 9-connecting shaft, 91-connecting plate, 92-limiting ratchet, 93-limiting shaft, 94-limiting block. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0013] Please see Figures 1-4This utility model provides a technical solution: an easily adjustable sealed ventilation opening for grain storage, comprising a ventilation opening shell 1, a preliminary sealing cover 2, a connecting hinge 3, a ventilation duct 4, a sealing adjustment mechanism 5, a ventilation pipe cover 6, a pipe fixing block 7, a fixing clamp 8, and a connecting shaft 9. The preliminary sealing cover 2 is installed on the front end face of the ventilation opening shell 1, and the preliminary sealing cover 2 is connected to the ventilation opening shell 1 via the connecting hinge 3. A ventilation duct 4 is installed inside the ventilation opening shell 1. A ventilation pipe cover 6 is installed on the front end face of the ventilation duct 4. Four pipe fixing blocks 7 are installed on the circumferential surface of the ventilation duct 4. A fixing bracket is installed on the upper surface of the ventilation duct 4. A connecting shaft 9 is provided on the upper surface of the ventilation pipe cover 6. Four sealing adjustment mechanisms 5 are installed on the circumferential surface of the ventilation duct 4. Each sealing adjustment mechanism 5 includes a sealing adjustment seat 51, a drive shaft seat 52, a drive handle 53, and an adjustment guide rail 5. 4. Adjusting screw 55, sealing and clamping plug 56, adjusting and stabilizing plate 57, fixing nut 58, and drive shaft 59. Four sealing and adjusting seats 51 are installed on the circumferential surface of the ventilation duct 4. A drive shaft seat 52 is installed on the outer surface of each sealing and adjusting seat 51. A drive handle 53 is installed on the inner side of the drive shaft seat 52. An adjusting guide rail 54 is installed inside the drive shaft seat 52. An adjusting screw 55 is installed on the inner side of the adjusting guide rail 54. Two fixing nuts 58 are installed on the circumferential surface of the adjusting screw 55. Two adjusting and stabilizing plates 57 are installed on the circumferential surface of the adjusting screw 55. A drive shaft 59 is installed on the inner side of the sealing and adjusting seat 51. A sealing and clamping plug 56 is installed at one end of the adjusting screw 55. This design solves the problem that the sealing and venting openings of the grain silo of the original device are troublesome to install and cannot adjust the clamping force according to the specific situation of the vent cover.

[0014] As the first embodiment of this utility model: a pull handle 21 is installed on the front end face of the preliminary sealing cover 2, a cover handle 61 is installed on the front end face of the ventilation pipe cover, two connecting plates 91 are installed on the circumferential surface of the connecting shaft 9, the two connecting plates 91 are located at the left and right ends of the connecting shaft 9 respectively, the rear ends of the two connecting plates 91 are fixedly connected to the fixing clamp 8, a limiting shaft 93 is installed on the right end of the connecting shaft 9, a limiting ratchet 92 is installed on the circumferential surface of the limiting shaft 93, a limiting block 94 is installed on the front end face of the fixing clamp 8, and the limiting block 94 is connected to the fixing clamp 8 by a hinge. The positioning block 94 meshes with the limiting ratchet 92. By adding the limiting ratchet 92 and the limiting block 94, the ventilation pipe cover 6 can be kept open by itself when it is opened. The sealing adjustment seat 51 is fixed to the ventilation pipe 4 by bolts. The drive shaft seat 52, the adjustment guide rail 54 and the drive handle 53 are connected by the drive shaft 59. The adjustment stabilizing plate 57 is located on both sides of the two adjustment guide rails 54. The two fixing nuts 58 are located on the outer surface of the corresponding adjustment stabilizing plate 57. The adjustment screw 55 is threadedly connected to the adjustment stabilizing plate 57 and the fixing nuts 58.

[0015] As a second embodiment of this utility model: When the ventilation pipe cover 6 is opened during use, the limiting ratchet 92 will rotate with the rotation of the limiting shaft 93, and the limiting block 94 will restrict the counterclockwise rotation of the limiting shaft 93, so that the ventilation pipe cover 6 cannot be closed. When closing the ventilation pipe cover 6, simply pull open the limiting block 94 to close the ventilation pipe cover 6 again. At this time, pull the drive handle 53 to rotate the adjusting guide rail 54 until the sealing and pressing plug 56 presses on the surface of the ventilation pipe cover 6. The position of the sealing and pressing plug 56 can be adjusted according to the actual situation of the ventilation pipe cover 6 by fixing the nut 58, thereby adjusting the sealing degree of the ventilation pipe cover 6.

[0016] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0017] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An easily adjustable sealed ventilation opening for grain storage, comprising a ventilation opening shell, a preliminary sealing cover, a connecting hinge, a ventilation duct, a sealing adjustment mechanism, a ventilation pipe cover, a pipe fixing block, a fixing clamp, and a connecting shaft, characterized in that: A preliminary sealing cover is installed on the front end face of the vent housing. The preliminary sealing cover is connected to the vent housing via a connecting hinge. A ventilation duct is installed inside the vent housing. A ventilation duct cover is installed on the front end face of the ventilation duct. Four duct fixing blocks are installed on the circumferential surface of the ventilation duct. A fixing bracket is installed on the upper surface of the ventilation duct. A connecting shaft is provided on the upper surface of the ventilation duct cover. Four sealing adjustment mechanisms are installed on the circumferential surface of the ventilation duct. The sealing adjustment mechanism includes a sealing adjustment seat, a drive shaft seat, a drive handle, an adjustment guide rail, an adjustment screw, a sealing clamping plug, an adjustment stabilizing plate, a fixing nut, and a drive shaft. Four sealing adjustment seats are installed on the circumferential surface of the ventilation duct. A drive shaft seat is installed on the outer surface of each sealing adjustment seat. A drive handle is installed on the inner side of the drive shaft seat. An adjustment guide rail is installed inside the drive shaft seat. An adjustment screw is installed on the inner side of the adjustment guide rail. Two fixing nuts are installed on the circumferential surface of the adjustment screw. Two adjustment stabilizing plates are installed on the circumferential surface of the adjustment screw. A drive shaft is installed on the inner side of the sealing adjustment seat. A sealing clamping plug is installed at one end of the adjustment screw.

2. The easily adjustable sealed ventilation opening for grain storage as described in claim 1, characterized in that: The front end of the preliminary sealing cover is equipped with a pull handle, and the front end of the ventilation pipe cover is equipped with a pipe cover handle.

3. The easily adjustable sealed ventilation opening for grain storage as described in claim 1, characterized in that: Two connecting plates are mounted on the circumferential surface of the connecting shaft. The two connecting plates are located at the left and right ends of the connecting shaft, respectively, and the rear end faces of the two connecting plates are fixedly connected to the fixing clamp.

4. The easily adjustable sealed ventilation opening for grain storage as described in claim 1, characterized in that: A limiting shaft is installed at the right end of the connecting shaft, a limiting ratchet is installed on the circumferential surface of the limiting shaft, a limiting block is installed on the front end face of the fixing clamp, the limiting block is connected to the fixing clamp by a hinge, and the limiting block and the limiting ratchet mesh with each other.

5. The easily adjustable sealed ventilation opening for grain storage as described in claim 4, characterized in that: The sealed adjustment seat is fixed to the ventilation duct by bolts. The drive shaft seat, the adjustment guide rail and the drive handle are connected by the drive shaft. The adjustment stabilizing plate is located on both ends of the two adjustment guide rails. The two fixing nuts are located on the outer surfaces of the corresponding adjustment stabilizing plates. The adjustment screw is connected to the adjustment stabilizing plate and the fixing nuts by threads.

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