Heat-preservation sealing gate of granary

Abstract

The utility model belongs to the technical field of granaries, and relates to a granary heat preservation sealing gate which comprises a first door leaf and a second door leaf which are oppositely opened, a first middle frame and a second middle frame are arranged on the inner side of the first door leaf and the inner side of the second door leaf, and the inner side face of the first middle frame and the inner side face of the second middle frame are arranged at intervals. A first middle inner leather strip sealed with the inner side surface of the second middle frame is arranged on the inner side surface of the first middle frame; a second middle inner leather strip sealed with the inner side surface of the first middle frame is arranged on the inner side surface of the second middle frame; the front side of the first middle frame extends towards the direction of the second door leaf to form a first sealing plate, the first sealing plate is provided with a first middle leather strip sealed with the front side face of the second middle frame, and the rear side of the second middle frame extends towards the direction of the first door leaf to form a second sealing plate. The second sealing plate is provided with a second middle leather strip which is sealed with the rear side face of the first middle frame. The heat preservation sealing gate of the granary has better heat preservation sealing performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of granaries and relates to a heat-insulating and airtight door for a granary. Background Art

[0002] The heat insulation and airtightness of a granary are very important, which directly affect the storage time of grains. Only under strict airtight conditions can a suitable temperature and an anoxic state of the grains be formed and maintained. If the airtightness of the granary is poor, the requirements for safe grain storage cannot be met. Undoubtedly, the existing granary doors are the weak points in the airtightness of granaries. Therefore, strengthening the airtightness of granary doors has become the top priority in enhancing the heat insulation and airtightness of granaries.

[0003] To enhance the airtightness of granary doors, a sealing strip is usually added between the profile frame of the door leaf and the outer door frame. When the door leaf is closed, a sealing structure is formed between the movable door leaf and the fixed outer door frame. However, for large granaries, in order to facilitate transportation, double-leaf doors need to be used, and the gap between the two door leaves will become another weak point in the airtightness of the door. Moreover, the existing granary doors do not have a good sealing method for this. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a heat-insulating and airtight door for a granary, which has better heat insulation and airtightness.

[0005] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0006] A heat-insulating and airtight door for a granary includes a first door leaf and a second door leaf that open in opposite directions. A first middle frame is arranged on the inner side of the first door leaf, and a second middle frame is arranged on the inner side of the second door leaf. The inner side surfaces of the first middle frame and the second middle frame are arranged at intervals. A first middle inner leather strip for sealing with the inner side surface of the second middle frame is arranged on the inner side surface of the first middle frame, and a second middle inner leather strip for sealing with the inner side surface of the first middle frame is arranged on the inner side surface of the second middle frame. A first sealing plate extends from the front side of the first middle frame towards the second door leaf, and a first middle leather strip for sealing with the front side surface of the second middle frame is arranged on the first sealing plate. A second sealing plate extends from the rear side of the second middle frame towards the first door leaf, and a second middle leather strip for sealing with the rear side surface of the first middle frame is arranged on the second sealing plate.

[0007] In the above-mentioned heat-insulating and sealing door for a granary, the first middle inner leather strip and the second middle inner leather strip are both grooved sealing strips, including a circular sealing part and a T-shaped installation part. The first middle frame and the second middle frame are respectively provided with a first middle inner leather strip installation groove and a second middle inner leather strip installation groove that match them. Preferably, the first middle inner leather strip installation groove and the second middle inner leather strip installation groove are recessed outward, and their inner planes are flush with the inner sides of the first middle frame and the second middle frame respectively.

[0008] In the above-mentioned heat-insulating and sealing door for a granary, the first middle leather strip and the second middle leather strip are both corrugated sealing strips, including several corrugated sealing lips and strip-shaped installation parts. The installation parts are respectively fixed on the rear side of the first sealing plate and the front side of the second sealing plate. Preferably, the first middle leather strip and the second middle leather strip are fixed on the rear side of the first sealing plate and the front side of the second sealing plate by adhesion.

[0009] In the above-mentioned heat-insulating and sealing door for a granary, the end of the first sealing plate is bent backward to form an installation groove adapted to the installation part of the first middle leather strip; the end of the second sealing plate is bent forward to form an installation groove adapted to the installation part of the second middle leather strip. Preferably, the depth of the installation groove is adapted to the installation part.

[0010] In the above-mentioned heat-insulating and sealing door for a granary, the rear side of the first middle frame is provided with a first concave plane that cooperates with the second sealing plate, and the first concave plane seals with the sealing lip of the second middle leather strip; the rear side of the second middle frame is provided with a second concave plane that cooperates with the first sealing plate, and the second concave plane seals with the sealing lip of the first middle leather strip.

[0011] In the above-mentioned heat-insulating and sealing door for a granary, preferably, the first concave plane and the second sealing plate are respectively located on the front and rear sides of the plane where the rear side of the door is located; the first sealing plate and the second concave plane are respectively located on the front and rear sides of the plane where the front side of the door is located; the front side and the rear side of the door refer to the front side and the rear side of the main parts of the first middle frame and the second middle frame.

[0012] In the above-mentioned heat-insulating and sealing door for a granary, an outer frame is provided on the outer sides of the first door leaf and the second door leaf. The front side of the outer frame extends outward to form an outer edge plate. The rear side of the outer edge plate is provided with an edge leather strip that seals with the installation surface of the outer door frame. The rear side of the outer frame is provided with an inner edge leather strip that seals with the step surface of the outer door frame. The outer frame is provided on the upper and lower outer sides of the first door leaf and the outer side away from the second door leaf, and the upper and lower outer sides of the second door leaf and the outer side away from the first door leaf. The outer frame encloses a rectangular structure.

[0013] In the above-mentioned thermal insulation and sealing door of a granary, both the edge strip and the inner edge strip are groove-type sealing strips, including a mushroom-shaped sealing part and a T-shaped installation part. The outer side plate and the outer frame are respectively provided with an edge strip installation groove and an inner edge strip installation groove that match them; preferably, the edge strip and the inner edge strip have different specifications.

[0014] In the above-mentioned thermal insulation and sealing door of a granary, preferably, the panels of the first door leaf and the second door leaf are made of stainless steel, and are filled with polyurethane foam boards inside. The middle frame and the outer frame are made of aluminum alloy. The first middle inner strip, the second middle inner strip, the first middle strip, the second middle strip, the edge strip, and the inner edge strip are all made of aviation-grade ethylene propylene diene monomer (EPDM).

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] 1. The present utility model provides a thermal insulation and sealing door for a granary, which improves the matching structure between the two door leaves. Two middle inner strips are sealed through the gap on the inner side surface of the door leaf, and two middle strips are sealed by respectively arranging sealing plates. The above-mentioned sealing structure has both horizontal sealing and vertical sealing, thereby forming a four-way three-dimensional sealing structure from front to back. At the same time, by arranging the sealing plates, the gas flow path is extended and bent, thereby further enhancing the airtightness.

[0017] 2. The present utility model further improves the sealing structure between the outer frame and the door outer frame. The edge strip and the inner edge strip are used to seal the installation surface and the step surface of the door outer frame respectively, enhancing the sealing performance between the door leaf and the door outer frame. In addition, the middle inner strip, the middle strip, the edge strip, and the inner edge strip of the present utility model adopt sealing strips with different structures to obtain the best sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the middle frame of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the outer frame of the present utility model;

[0020] Reference numerals: 1. First door leaf; 2. Second door leaf; 3. First middle frame; 4. Second middle frame; 5. First middle inner strip; 6. Second middle inner strip; 7. First sealing plate; 8. First middle strip; 9. Second sealing plate; 10. Second middle strip; 11. First concave plane; 12. Second concave plane; 13. Outer frame; 14. Outer side plate; 15. Edge strip; 16. Inner edge strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following further describes the present utility model with specific embodiments in conjunction with the drawings. See Figure 1-2 :

[0022] A heat-insulating and sealing door for a granary, comprising a first door leaf 1 and a second door leaf 2 which are opened oppositely. A first middle frame 3 is arranged on the inner side of the first door leaf 1, and a second middle frame 4 is arranged on the inner side of the second door leaf 2. The inner side surfaces of the first middle frame 3 and the second middle frame 4 are arranged at intervals. A first middle inner leather strip 5 for sealing with the inner side surface of the second middle frame 4 is arranged on the inner side surface of the first middle frame 3, and a second middle inner leather strip 6 for sealing with the inner side surface of the first middle frame 3 is arranged on the inner side surface of the second middle frame 4. A first sealing plate 7 extends from the front side of the first middle frame 3 towards the second door leaf 2, and a first middle leather strip 8 for sealing with the front side surface of the second middle frame 4 is arranged on the first sealing plate 7. A second sealing plate 9 extends from the rear side of the second middle frame 4 towards the first door leaf 1, and a second middle leather strip 10 for sealing with the rear side surface of the first middle frame 3 is arranged on the second sealing plate 9.

[0023] Contrast appendix Figure 1 In this embodiment, an oppositely-opening granary door is adopted. When it is closed, first, the second door leaf 2 is pushed backward to a predetermined position, and then the first door leaf 1 is pushed backward to a predetermined position. After closing, the first middle inner leather strip 5 is hermetically connected to the inner side surface of the second middle frame 4, the second middle inner leather strip 6 is hermetically connected to the inner side surface of the first middle frame 3, the first middle leather strip 8 is hermetically connected to the front side surface of the second middle frame 4, and the second middle leather strip 10 is hermetically connected to the rear side surface of the first middle frame 3, thereby forming a quadruple sealing structure of the first middle leather strip 8, the first middle inner leather strip 5, the second middle inner leather strip 6, and the second middle leather strip 10 from front to back.

[0024] Contrast appendix Figure 1 In this embodiment, the specific structure of the middle inner leather strip is as follows: both the first middle inner leather strip 5 and the second middle inner leather strip 6 are grooved sealing strips, including a circular sealing part and a T-shaped installation part. A first middle inner leather strip 5 installation groove and a second middle inner leather strip 6 installation groove which are matched with them are respectively arranged on the first middle frame 3 and the second middle frame 4. Preferably, the first middle inner leather strip 5 installation groove and the second middle inner leather strip 6 installation groove are recessed and formed, and their inner planes are flush with the inner side surfaces of the first middle frame 3 and the second middle frame 4 respectively.

[0025] Contrast appendix Figure 1 In this embodiment, the specific structure of the middle leather strip is as follows: both the first middle leather strip 8 and the second middle leather strip 10 are corrugated sealing strips, including a plurality of corrugated sealing lips and strip-shaped installation parts. The installation parts are respectively fixed on the rear side surface of the first sealing plate 7 and the front side surface of the second sealing plate 9. Preferably, the first middle leather strip 8 and the second middle leather strip 10 are fixed on the rear side surface of the first sealing plate 7 and the front side surface of the second sealing plate 9 by adhesion.

[0026] For the convenience of installing the middle leather strip and making the installation structure of the middle leather strip more firm: the end of the first sealing plate 7 is bent backward to form an installation groove adapted to the installation part of the first middle leather strip 8; the end of the second sealing plate 9 is bent forward to form an installation groove adapted to the installation part of the second middle leather strip 10; preferably, the depth of the installation groove is adapted to the installation part.

[0027] On the rear side of the above-mentioned first middle frame 3, there is a first concave plane 11 that cooperates with the second sealing plate 9, and the first concave plane 11 is sealed with the sealing lip of the second middle leather strip 10; on the rear side of the second middle frame 4, there is a second concave plane 12 that cooperates with the first sealing plate 7, and the second concave plane 12 is sealed with the sealing lip of the first middle leather strip 8. Preferably, the first concave plane 11 and the second sealing plate 9 are respectively located on the front and rear sides of the plane where the rear side of the door is located; the first sealing plate 7 and the second concave plane 12 are respectively located on the front and rear sides of the plane where the front side of the door is located; the front side and the rear side of the door refer to the front side and the rear side of the main body parts of the first middle frame 3 and the second middle frame 4. By setting the concave plane, the convexity at the edge of the middle frame caused by setting the sealing plate can be improved, and the middle leather strip can be wrapped within the middle frame to better protect the middle leather strip.

[0028] This embodiment also provides a sealing structure between the outer frame 13 of the door leaf and the outer door frame to better seal the door leaf and the outer door frame.

[0029] Refer to the appendix Figure 2 , on the outer sides of the first door leaf 1 and the second door leaf 2, there is an outer frame 13. The front side of the outer frame 13 extends outward to form an outer edge plate 14. On the rear side of the outer edge plate 14, there is an edge leather strip 15 that is sealed with the installation surface of the outer door frame (the installation surface where the hinge is set). On the rear side of the outer frame 13, there is an inner edge leather strip 16 that is sealed with the step surface of the outer door frame (the step surface is the main sealing surface and the limiting surface of the outer door frame); the outer frame 13 is arranged on the upper and lower outer sides of the first door leaf 1 and the outer side far from the second door leaf 2, and the upper and lower outer sides of the second door leaf 2 and the outer side far from the first door leaf 1; the outer frame 13 encloses a rectangular structure.

[0030] Furthermore, both the edge leather strip 15 and the inner edge leather strip 16 are snap-in type sealing strips, including a mushroom-shaped sealing part and a T-shaped installation part. On the outer edge plate 14 and the outer frame 13, there are respectively arranged an edge leather strip 15 installation groove and an inner edge leather strip 16 installation groove that match them; preferably, the edge leather strip 15 and the inner edge leather strip 16 have different specifications. In this embodiment, the size of the inner edge leather strip 16 is larger than that of the edge leather strip 15.

[0031] When the granary door is closed, the outer frame 13 and the door outer frame 13 form a mating structure. Among them, the outer panel 14 contacts the door outer frame mounting surface, and the rear side of the outer frame 13 contacts the stepped surface of the door outer frame. At the same time, the edge strip 15 is used to seal the contact surface between the door edge panel and the door outer frame mounting surface, and the inner edge strip 1615 is used to seal the contact surface between the rear side of the outer frame 13 and the stepped surface of the door outer frame. Through the double sealing of the edge strip 15 and the inner edge strip 1615, a sealing structure with good sealing performance is formed.

[0032] In this embodiment, the panels of the first door leaf 1 and the second door leaf 2 are made of stainless steel and filled with polyurethane foam boards inside. The middle frame and the outer frame 13 are made of aluminum alloy. The first middle inner strip 5, the second middle inner strip 6, the first middle strip 8, the second middle strip 10, the edge strip 15, and the inner edge strip 1615 are all made of aviation-grade ethylene propylene diene monomer (EPDM).

[0033] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A heat-insulating and airtight large barn door, comprising a first door leaf (1) and a second door leaf (2) which are opened oppositely. A first middle frame (3) is arranged on the inner side of the first door leaf (1), and a second middle frame (4) is arranged on the inner side of the second door leaf (2). It is characterized in that, The inner side surfaces of the first middle frame (3) and the second middle frame (4) are spaced apart. A first middle inner leather strip (5) for sealing with the inner side surface of the second middle frame (4) is provided on the inner side surface of the first middle frame (3), and a second middle inner leather strip (6) for sealing with the inner side surface of the first middle frame (3) is provided on the inner side surface of the second middle frame (4); a first sealing plate (7) extends from the front side of the first middle frame (3) towards the second door leaf (2), and a first middle leather strip (8) for sealing with the front side surface of the second middle frame (4) is provided on the first sealing plate (7). A second sealing plate (9) extends from the rear side of the second middle frame (4) towards the first door leaf (1), and a second middle leather strip (10) for sealing with the rear side surface of the first middle frame (3) is provided on the second sealing plate (9).

2. The insulating and sealing door for a granary according to claim 1, characterized in that, Both the first middle inner leather strip (5) and the second middle inner leather strip (6) are groove-type sealing strips, including a circular sealing portion and a T-shaped installation portion. A first middle inner leather strip (5) installation groove and a second middle inner leather strip (6) installation groove matching with them are respectively provided on the first middle frame (3) and the second middle frame (4).

3. The thermal insulation and sealing door of a granary according to claim 1, characterized in that, Both the first middle leather strip (8) and the second middle leather strip (10) are corrugated sealing strips, including a plurality of corrugated sealing lips and strip-shaped installation portions. The installation portions are respectively fixed on the rear side surface of the first sealing plate (7) and the front side surface of the second sealing plate (9).

4. The insulating and sealing large door for a granary according to claim 3, characterized in that, The end of the first sealing plate (7) is bent backward to form an installation groove adapted to the installation portion of the first middle leather strip (8); the end of the second sealing plate (9) is bent forward to form an installation groove adapted to the installation portion of the second middle leather strip (10).

5. The insulating and sealing large door for a granary according to claim 3, wherein: A first concave plane (11) cooperating with the second sealing plate (9) is provided on the rear side surface of the first middle frame (3), and the first concave plane (11) is sealed with the sealing lip of the second middle leather strip (10); a second concave plane (12) cooperating with the first sealing plate (7) is provided on the rear side surface of the second middle frame (4), and the second concave plane (12) is sealed with the sealing lip of the first middle leather strip (8).

6. The thermally insulated and sealed large door for a granary according to claim 5, characterized in that, The first concave plane (11) and the second sealing plate (9) are respectively located on the front and rear sides of the plane where the rear side of the large door is located; the first sealing plate (7) and the second concave plane (12) are respectively located on the front and rear sides of the plane where the front side of the large door is located.

7. A heat-insulating and sealed granary door according to claim 1, characterized in that, An outer frame (13) is provided on the outer sides of the first door leaf (1) and the second door leaf (2). An outer edge plate (14) extends outward from the front side of the outer frame (13), and an edge leather strip (15) for sealing with the installation surface of the outer door frame is provided on the rear side of the outer edge plate (14). An inner edge leather strip (16) for sealing with the step surface of the outer door frame is provided on the rear side of the outer frame (13).

8. A heat-insulating and sealing large door for a granary according to claim 7, characterized in that, Both the edge leather strip (15) and the inner edge leather strip (16) are groove-type sealing strips, including a mushroom-shaped sealing portion and a T-shaped installation portion. An edge leather strip (15) installation groove and an inner edge leather strip (16) installation groove matching with them are respectively provided on the outer edge plate (14) and the outer frame (13).

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