Sealing granary door for granary

Abstract

The utility model belongs to the technical field of grain storage, and particularly relates to a sealing granary door for a granary, which comprises a connecting piece, a sealing film and a pressing plate, the connecting piece is fixedly connected with a door opening structure, and a plurality of third connecting holes are formed in the sealing film. Second connecting bolts of a plurality of second connecting devices penetrate through third connecting holes, then stretch into second connecting holes in the connecting piece and then are locked by connecting nuts, and a sealing film is connected with the connecting piece in a sealed mode and can block an opening space in the door opening structure. According to the sealing bin door for the granary, by optimizing the connecting mode of all the assemblies and adopting a porous connecting structure and a detachable pressing plate fixing mode, on the basis that the sealing effect is guaranteed, the installation and subsequent maintenance processes are more convenient and efficient, the construction and overhaul time is effectively shortened, and the maintenance cost is reduced; the problems that an existing sealing door is tedious in installation and difficult to maintain are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to grain storage technical field, especially relate to a sealed door for granary. BACKGROUND

[0002] Grain storage is an important part of national economy and social security, and the quality of its storage environment is directly related to grain quality and safety. As the main place for long-term storage of grain, the temperature, humidity, ventilation, rat and mouse prevention, and sterilization and pest control measures in the granary need to be strictly controlled. As a "barrier" between the granary and the external environment, the sealing door plays an important role in ensuring the stability of the internal storage environment and preventing the invasion of harmful factors from the outside.

[0003] A sealing door for granary is disclosed in Chinese patent CN2430398Y, which discloses a combined sealing door structure for granary. The sealing door is composed of two or more sealing door blocks stacked vertically. Each door block is composed of a plastic steel frame and a plastic film clamped on the plastic steel frame. The plastic film is fixed and pressed on the mounting surface of the plastic steel frame profile, and double-sided adhesive tape is bonded between the mounting surface of the profile and the mounting part of the plastic film. Although this scheme realizes the air-tight sealing of the granary by using a combined structure and a sealing measure of pressing strip pressing and bonding with adhesive tape, it meets the requirements of isolating the internal temperature and humidity and external harmful substances to a certain extent. However, in actual use, the operator needs to use a pressing strip structure with extremely high rigidity to press the plastic film into the groove of the plastic steel frame to realize the air-tight sealing of the granary. On the one hand, the high-rigidity pressing strip requires the use of high-quality and hard materials, which inevitably leads to an increase in manufacturing and equipment costs. On the other hand, during actual installation, the operator needs to exert a large force to fully press the pressing strip into the groove, which is difficult to operate and prone to fatigue, thereby reducing the construction efficiency.

[0004] Therefore, the present application is proposed. UTILITY MODEL CONTENTS

[0005] Therefore, the present application is proposed.

[0006] To achieve the above-mentioned purposes, the technical solution of the utility model is as follows:

[0007] A sealing door for granary, comprising:

[0008] The connecting piece is fixedly connected with the door hole structure, and a second connecting hole is provided on the connecting piece.

[0009] The sealing membrane is sealed to the connector and can block the opening space inside the doorway structure;

[0010] The pressure plate, through the second connecting device, detachably fixes the sealing film to the connector;

[0011] The sealing membrane is provided with multiple third connection holes, and the second connection bolts of multiple second connection devices pass through the third connection holes and extend into the second connection holes on the connector and are then locked.

[0012] Furthermore, a sealing element is provided between the pressure plate and the sealing membrane, and the sealing element can be deformed under pressure during the pressing process of the pressure plate.

[0013] Furthermore, an anti-rotation limiting member is provided on the side of the connector away from the sealing film, and a connecting nut is provided on the anti-rotation limiting member. The connecting nut is placed on the anti-rotation limiting member and can prevent rotation.

[0014] Furthermore, a second sealing gasket is provided on the second connecting bolt, the second sealing gasket being located on the side of the sealing film away from the connecting nut.

[0015] Furthermore, the connector is provided with a first connecting hole, and the connector is fixed to the door opening structure by passing through the first connecting hole via a first connecting device.

[0016] Furthermore, the first connecting device includes a first connecting bolt, and a locking washer is provided on the first connecting bolt. The locking washer is provided on the side of the connector facing away from the connecting surface of the door opening structure.

[0017] Furthermore, the connector is fixed to the doorway structure by an extension mechanism, which includes an extension part, a support part, and an adjustment device. The adjustment device can adjust the extension part to extend or retract relative to the support part.

[0018] Furthermore, the connector includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate being designed perpendicularly to each other, the first connecting hole being disposed on the first connecting plate, and the second connecting hole being disposed on the second connecting plate.

[0019] Furthermore, the connector is flat, and the first connecting hole and the second connecting hole are arranged in two rows at intervals on the connector. The connector is connected and fixed to the side wall or surface wall of the door opening structure through the first connecting hole.

[0020] Furthermore, a sealant is applied to the connection between the connector and the doorway structure.

[0021] Furthermore, multiple connectors are provided, and the multiple connectors are arranged in an enclosing manner within the doorway slot of the doorway structure. Each connector is provided with multiple second connection holes.

[0022] Compared with existing technologies, the sealed grain silo door of this utility model has the following advantages:

[0023] 1. The sealed grain storage door of this utility model adopts a structure in which connectors, sealing film and pressure plate cooperate with each other, and optimizes the connection method between each component. It adopts a multi-hole connection structure and a detachable pressure plate fixing method, which makes the installation process more convenient and efficient. It not only ensures excellent sealing performance, but also greatly simplifies the installation and subsequent maintenance process, effectively shortens the construction and maintenance time, and reduces maintenance costs.

[0024] 2. The sealed grain storage door of this utility model enhances the sealing performance by setting multiple sealing measures in key parts, including sealing elements, locking gaskets, and second sealing gaskets. This allows the sealed grain storage door to maintain excellent sealing performance even under complex environmental conditions, providing a more reliable guarantee for the safe storage of grain. Attached Figure Description

[0025] Figure 1 This is a front view schematic diagram of the sealed warehouse door for grain storage installed in the doorway structure according to an embodiment of this utility model;

[0026] Figure 2 for Figure 1 A partially enlarged structural diagram of section A in the middle;

[0027] Figure 3 This is a schematic diagram of the assembly of the sealed warehouse door and the door opening structure for grain storage according to an embodiment of this utility model;

[0028] Figure 4 for Figure 3 A magnified schematic diagram of a portion of section B in the middle;

[0029] Figure 5 This is a partially enlarged structural diagram of the anti-rotation limiting member provided on the connector according to an embodiment of the present utility model;

[0030] Figure 6 This is an exploded structural diagram of the assembly of the connector, sealing membrane, pressure plate, and sealing element described in an embodiment of this utility model.

[0031] Figure 7 This is a schematic diagram of the connector, which is a flat plate structure installed on the side wall of the doorway, according to an embodiment of the present invention.

[0032] Figure 8This is a schematic diagram of the connector, which is a flat plate structure installed on the surface wall of the doorway, according to an embodiment of the present invention.

[0033] Figure 9 This is a schematic diagram of the structure in which the connector and the door opening structure are fixed by an extension mechanism according to an embodiment of the present utility model;

[0034] Figure 10 for Figure 9 A side view of the structure shown in the diagram;

[0035] Figure 11 for Figure 10 A partially enlarged structural diagram of section A in the middle;

[0036] The markings in the diagram are as follows:

[0037] 1-Door opening structure; 101-Door opening body; 102-Door opening side wall; 103-Door opening surface wall; 2-Connecting component; 201-First connecting plate; 202-Second connecting plate; 203-First connecting hole; 204-Second connecting hole; 205-Anti-rotation limiting component; 2051-Anti-rotation groove; 3-Sealing membrane; 301-Third connecting hole; 4-First connecting device; 401-First connecting bolt; 402-Locking washer; 5-Second connecting device; 501-Second connecting bolt; 502-Second sealing gasket; 503-Connecting nut; 6-Pressure plate; 7-Sealing component; 8-Extension mechanism; 801-Extension part; 802-Support part; 803-Adjusting device. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0039] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0040] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0041] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0042] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, features described with reference to certain examples may be combined in other examples.

[0043] like Figures 1 to 6 As shown, this application discloses a sealed grain silo door, comprising:

[0044] Connector 2 is fixedly connected to doorway structure 1, and a second connection hole 204 is provided on connector 2;

[0045] The sealing membrane 3 is sealed to the connector 2 and can seal the opening space inside the doorway structure 1;

[0046] The pressure plate 6 detachably fixes the sealing film 3 to the connector 2 via the second connecting device 5;

[0047] In this process, a plurality of third connection holes 301 are provided on the sealing membrane 3, and the second connection bolts 501 of the plurality of second connection devices 5 pass through the third connection holes 301 and extend into the second connection holes 204 on the connector 2 and are then locked.

[0048] This application discloses a sealed granary door. It achieves a sealed connection with the door opening structure 1 through a structure consisting of a connector 2, a sealing membrane 3, and a pressure plate 6. In practical use, the connector 2 is first firmly fixed to the door opening structure 1. This can be achieved using methods such as pre-embedded parts, grooving and grouting, or a post-installed detachable connector. A dedicated second connection hole 204 is pre-drilled on the connector 2. Multiple third connection holes 301 are provided above the sealing membrane 3. Preferably, the third connection holes 301 are evenly distributed on the sealing membrane 3, thereby allowing multiple... The second connecting bolt 501 of the second connecting device 5 can pass through the third connecting hole 301 and then extend into the second connecting hole 204 on the connector 2. The second connecting bolt 501 is then locked and fixed by the connecting nut 503 or the thread in the second connecting hole 204, thus forming a stable and easy-to-disassemble and maintain reliable connection system. This system, with the aid of the second connecting device 5 and the pressure plate 6, further firmly fixes the sealing membrane 3 to the connector 2, forming a continuous and uniform sealing surface between the sealing membrane 3 and the door opening structure 1 to effectively block the intrusion of external dust, moisture, and other harmful substances. The grain silo sealing door described in this application fully considers the ease of operation during construction and installation, as well as the balance of force during use. Through multi-point connection and precise alignment, it achieves coordinated work between components, avoiding the defects of traditional sealing doors caused by uneven local force or high-rigidity pressure strips that make installation difficult. It also achieves efficient operation for disassembly, maintenance, and replacement of components, thereby significantly improving the system's stability and service life while ensuring excellent sealing performance.

[0049] The sealed grain silo door disclosed in this application optimizes the connection method between various components, adopts a multi-hole connection structure and a detachable pressure plate fixing method, which makes the installation and subsequent maintenance process more convenient and efficient while ensuring the sealing effect. It effectively shortens the construction and maintenance time, reduces maintenance costs, and solves the problems of complicated installation and difficult maintenance of previous sealed doors.

[0050] As a preferred example of this application, a sealing element 7 is provided between the pressure plate 6 and the sealing membrane 3, and the sealing element 7 can be deformed under pressure during the pressing process of the pressure plate 6. In the example of this application, the sealing membrane 3 is a rubber sealing membrane, and the sealing element 7 is a rubber sealing element. When the pressure plate 6 is firmly fixed to the connector 2 through the second connecting device, the sealing element 7 will be deformed by the pressure from the pressure plate 6. In this process, the sealing element 7 automatically fills all the gaps between the pressure plate 6 and the sealing membrane 3 caused by manufacturing tolerances, installation deviations or minor structural differences, thereby forming a continuous, uniform and seamless sealing barrier. This barrier can not only effectively block the intrusion of dust, moisture, pests and other harmful substances, but also, due to the excellent self-recovery and weather resistance of the rubber material, it can quickly adjust its deformation state to maintain the tight fit between the components even under complex environmental conditions such as external temperature, humidity, wind and rain or vibration. In addition, this design fully considers the convenience of installation and subsequent maintenance. As an independent and replaceable component, the sealing element 7 can be easily disassembled or replaced when necessary to avoid sealing failure caused by material aging or wear.

[0051] This feature, by placing a rubber seal 7 between the pressure plate 6 and the sealing membrane 3, further enhances the sealing performance of the grain silo door system, providing a more reliable guarantee for the safe storage of grain.

[0052] As a preferred example of this application, an anti-rotation limiting member 205 is provided on the side of the connector 2 away from the sealing film 3, and a connecting nut 503 is provided on the anti-rotation limiting member 205. The connecting nut 503 is placed on the anti-rotation limiting member 205 and can prevent rotation and limit rotation. In a specific example of this application, an anti-rotation groove 2051 is provided in the anti-rotation limiting member 205. The connecting nut 503 can be placed in the anti-rotation groove 2051 from top to bottom and is anti-rotated and limited by it. When installing the second connecting device 5, the connecting nut 503 is first placed in the anti-rotation groove 2051 of the anti-rotation limiting member 205. Then, when the second connecting bolt 501 in the second connecting device 5 is installed from the outside of the door opening structure 1 to the inside of the door opening structure 1, it passes through the pressure plate 6, the sealing member 7, the sealing membrane 3, and the connecting member 2 in sequence and is threadedly connected by the connecting nut 503 in the anti-rotation groove 2051. By rotating the head of the second connecting bolt 501, since the connecting nut 503 is anti-rotated and limited, the second connecting bolt 501 locks the pressure plate 6, the sealing member 7, the sealing membrane 3 and the connecting member 2.

[0053] This design, through the use of anti-rotation limiting components and anti-rotation grooves, achieves precise positioning and stable limiting of the connecting nut, preventing the nut from rotating or shifting during installation. This greatly improves the accuracy and efficiency of installation, while also enhancing the convenience of installation and disassembly for operators. Operators only need to rotate the bolt head to complete the tightening, eliminating the need for additional operations to fix the nut. This simplifies the installation process, saves time and labor costs, and not only improves the ease and efficiency of installing the grain silo sealing door but also enhances its stability and sealing performance.

[0054] As a preferred example of this application, a second sealing gasket 502 is provided on the second connecting bolt 501, and the second sealing gasket 502 is disposed on the side of the sealing membrane 3 away from the connecting nut 503. In the example of this application, the second sealing gasket 502 is disposed between the threaded head of the second connecting bolt 501 and the pressure plate 6, and the second connecting bolt 501 can press the second sealing gasket 502 and the pressure plate 6 to form a sealed connection during the fastening process with the connecting nut 503.

[0055] This design, through the placement of the second sealing gasket 502, enhances the sealing performance of the connection between the second connecting bolt 501 and the pressure plate 6 and sealing membrane 3, effectively preventing the penetration of moisture, dust, and other substances, thus maintaining the cleanliness and dryness of the grain silo's interior. Furthermore, the elasticity and cushioning effect of the second sealing gasket 502 reduces direct collision and friction between the second connecting bolt 501 and the pressure plate 6, protecting the surface of the connecting components. Simultaneously, it enhances the friction and tightening force at the connection point, making the connection between the second connecting bolt 501 and the pressure plate 6 more secure and less prone to loosening.

[0056] As a preferred example of this application, the connector 2 is provided with a first connecting hole 203, and the connector 2 is fixed to the door opening structure 1 by a first connecting device 4 passing through the first connecting hole 203. As a specific example of this application, during installation, the first connecting device 4 includes a first connecting bolt 401, which is precisely passed through the first connecting hole 203 on the connector 2, and then tightened to the corresponding fixing point on the door opening structure 1, ensuring that the connector 2 can be firmly attached to the predetermined position of the door opening structure 1, and will not loosen or shift due to external force or long-term use.

[0057] The first connecting hole 203 provides clear positioning and guidance for the installation of the connector 2, simplifying the installation process. Installers can quickly find the connection point and accurately fix the connector 2 to the door opening structure 1 without complicated adjustments and calibrations. At the same time, the fastening effect of the first connecting device 4 makes the connection between the connector 2 and the door opening structure 1 more solid and reliable, able to withstand greater tension and pressure, and enhance the overall stability of the sealed door.

[0058] As a preferred example of this application, a sealant is provided at the connection between the connector 2 and the doorway structure 1. In this example, when the connector 2 is fixed to the doorway structure 1 by the first connecting device 4, sealant is injected at the connection between the connector 2 and the doorway structure 1, so that the gap between the two is completely filled. The sealant gradually cures after injection, forming a tough and highly elastic sealing layer. This sealing layer can tightly adhere to the surfaces of the connector 2 and the doorway structure 1, and can also be adjusted according to the shape and slight deformation of both, always maintaining a seal and ensuring a sealed connection between the connector 2 and the doorway structure 1.

[0059] This design further improves the stability and sealing of the connection between connector 2 and doorway structure 1.

[0060] As a preferred example of this application, a locking washer 402 is provided on the first connecting bolt 401. The locking washer 402 is disposed on the side of the connector 2 facing away from the connection surface of the door opening structure 1. In the example of this application, when the first connecting bolt 401 passes through the pre-set holes on the connector 2 and the door opening structure 1 for fixing, the locking washer 402 is tightly pressed against the side of the connector 2 to fill the gap when the first connecting bolt 401 is connected to the connector 2.

[0061] The design enhances the sealing performance between the connector 2 and the door structure 1 by setting the locking gasket 402, effectively preventing adverse external factors from affecting the internal environment of the grain warehouse.

[0062] In some examples of this application, such as Figures 9 to 11 As shown, the connector 2 is fixed to the door opening structure 1 by an extension mechanism 8. The extension mechanism 8 includes an extension portion 801, a support portion 802, and an adjustment device 803. The adjustment device 803 can adjust the extension portion 801 to extend or retract relative to the support portion 802. When the door opening needs to be sealed, the extension portion 801 is extended by the adjustment device 803, bringing the connector 2 into close contact with and fixing it to the door opening structure 1. When the door needs to be opened or maintained, the adjustment device 803 retracts the extension portion 801, releasing the connector 2 from fixing the door opening structure 1, thereby achieving a stable connection and convenient disassembly between the door opening structure 1 and the connector 2. As a preferred example of this application, the extension mechanism 8 is a screw extension mechanism, the extension portion 801 is a threaded extension structure, and the adjustment device 803 is a nut hinged to the support portion 802. By rotating the nut, the extension portion 801 can extend or retract relative to the support portion 802, resulting in a compact structure and smooth transmission.

[0063] This setup achieves detachable fixing of the connector 2 and the doorway structure 1 by using an extension mechanism 8. On the one hand, it ensures a reliable sealed connection between the connector 2 with the sealing membrane 3 and the doorway structure 1, preventing the external environment from affecting the inside of the grain silo. At the same time, the use of the screw extension mechanism makes the extension and retraction of the extension part 801 more stable and reliable, reducing the wear and maintenance frequency of the mechanism. The structure is reasonable, easy to manufacture and install, and improves the convenience of operation and the durability of the equipment.

[0064] As a specific example of this application, the connector 2 includes a first connecting plate 201 and a second connecting plate 202. The first connecting plate 201 and the second connecting plate 202 are designed to be perpendicular to each other. The first connecting hole 203 is provided on the first connecting plate 201, and the second connecting hole 204 is provided on the second connecting plate 202. In the example of this application, the connector 2 has an L-shaped design and can be an angle steel structure. The connector 2 is tightly fixed to the side wall 102 of the doorway structure 1 via the first connecting plate 201. The second connecting plate 202 is perpendicular to the side wall 102 of the doorway structure and is used to fix the sealing membrane 3. As some examples of this application, the connector 2 can also be a channel steel structure or an H-shaped steel structure.

[0065] This design discloses a specific structure for the connector 2, which is designed to include a first connecting plate 201 and a second connecting plate 202 arranged vertically. It can cleverly utilize L-shaped angle steel, channel steel, or other structural steel to achieve sealing and fixing of the connector 2 with the door opening structure 1 and the sealing membrane 3 structure. This reduces the adjustment and alignment steps during installation and improves installation efficiency. At the same time, the connector 2 structure has good strength and stability, providing stable support and fixation for the sealing membrane 3. It can withstand the tension of the sealing membrane 3 and the pressure of the external environment, ensuring that the sealing membrane 3 is in a reliable sealing state for a long time.

[0066] As a specific example of this application, the connector 2 is flat, and the first connecting hole 203 and the second connecting hole 204 are arranged in two spaced rows on the connector 2. The connector 2 is connected and fixed to the doorway sidewall 102 or the doorway surface wall 103 of the doorway structure 1 through the first connecting hole 203. In the example of this application, the doorway structure 1 includes a doorway body 101, and an opening space is provided on the doorway body 101 to form the doorway sidewall 102. The doorway surface wall 103 is provided on opposite sides of the doorway sidewall 102, such as... Figure 7 As shown, the connector 2 is flat and is fixed to the side wall 102 of the doorway through the first connecting hole 203, as... Figure 8 As shown, the connector 2 is flat and is connected and fixed to the surface wall 103 of the door opening through the first connecting hole 203.

[0067] This design discloses another specific structure of connector 2, which is designed as a flat plate. This not only facilitates processing and installation but also provides a stable support surface, ensuring the firmness of the connection. It can adapt to door opening structures of different sizes and shapes, as well as different installation environments and needs.

[0068] As a preferred example of this application, multiple connectors 2 are provided, arranged in an enclosing manner within the doorway slot of the doorway structure 1. Each connector 2 is provided with multiple second connection holes 204. In the example of this application, the doorway slot of the doorway structure 1 is rectangular, and four connectors 2 are provided, positioned on the four side walls of the doorway slot. During installation, the multiple connectors 2 are fixedly connected to the side walls of the doorway slot through their first connection holes 203, ensuring the stability of the connectors 2 within the doorway slot.

[0069] The sealed grain silo door described in this application, through the synergistic effect of key components such as the connector 2, sealing membrane 3, pressure plate 6, sealing element 7, anti-rotation limiting element 205, second sealing gasket 402, locking gasket 502, and sealant, achieves a more balanced stress distribution among the components and a continuous and seamless sealing surface. This eliminates the problem of local sealing failure caused by manufacturing tolerances, installation deviations, or minor structural differences. At the same time, it simplifies the installation process, enables convenient disassembly, inspection, and replacement of components, significantly shortens construction and maintenance time, and reduces maintenance costs, providing a reliable guarantee for the safe storage of grain.

[0070] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A sealed silo door for a silo, characterized in that The utility model relates to a door sealing structure, including: Connecting piece (2) with door hole structure (1) fixed connection is set second connecting hole (204) on connecting piece (2), Sealing film (3) with connecting piece (2) sealed connection and can block the open space inside door hole structure (1), Pressing plate (6) is detachably fixed with sealing film (3) on connecting piece (2) through second connecting device (5), Wherein, a plurality of third connecting holes (301) are arranged on the sealing film (3), and the second connecting bolt (501) of a plurality of second connecting devices (5) passes through the third connecting hole (301) and is locked after extending into the second connecting hole (204) on the connecting piece (2).

2. The sealable grain bin door of claim 1, wherein, Sealing element (7) is arranged between the pressing plate (6) and the sealing film (3), and the sealing element (7) can be deformed under pressure during the pressing process of the pressing plate (6).

3. The sealable grain bin door of claim 1, wherein, Stop limit piece (205) is arranged on the side of the connecting piece (2) away from the sealing film (3), a connecting nut (503) is arranged on the stop limit piece (205), and the connecting nut (503) is placed on the stop limit piece (205) and can stop rotation.

4. The sealable silo door of claim 3, wherein, Second sealing pad (502) is arranged on the second connecting bolt (501), and the second sealing pad (502) is arranged on the side of the sealing film (3) away from the connecting nut (503).

5. The sealable grain bin door of claim 1, wherein, First connecting hole (203) is arranged on the connecting piece (2), and the connecting piece (2) is fixed on the door hole structure (1) through the first connecting hole (203) by the first connecting device (4).

6. The sealable grain bin door of claim 1, wherein, The connecting piece (2) is fixed on the door hole structure (1) by the extension mechanism (8), and the extension mechanism (8) comprises an extension part (801), a supporting part (802) and an adjusting device (803), the adjusting device (803) can adjust the extension or retraction of the extension part (801) relative to the supporting part (802).

7. The sealable grain bin door of claim 5, wherein, The connecting piece (2) comprises a first connecting plate (201) and a second connecting plate (202), the first connecting plate (201) and the second connecting plate (202) are designed in a perpendicular manner, the first connecting hole (203) is arranged on the first connecting plate (201), and the second connecting hole (204) is arranged on the second connecting plate (202).

8. The sealable grain bin door of claim 5, wherein, The connecting piece (2) is arranged in a flat plate shape, the first connecting hole (203) and the second connecting hole (204) are arranged in two rows with intervals on the connecting piece (2), and the connecting piece (2) is connected and fixed with the door hole side wall (102) or the door hole surface wall (103) of the door hole structure (1) through the first connecting hole (203).

9. The sealable grain bin door of claim 1, wherein, Sealing glue is arranged at the connection between the connecting piece (2) and the door hole structure (1).

10. The sealable grain bin door of claim 1, wherein, A plurality of connecting pieces (2) are arranged, and a plurality of second connecting holes (204) are arranged on each connecting piece (2).

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