Air leakage prevention structure of oppositely-opened double-exposed-seam armored door
By using a combination of vertical sealing strips and sealing strips on the armored doors, the problem of insufficient sealing of traditional armored doors is solved, and higher airtightness and aesthetics are achieved, preventing gas loss and noise generation.
Patent Information
- Application Number
- CN202422219546.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-11
AI Technical Summary
Traditional armored doors have shortcomings in sealing, especially in the winters of the northeast and northwest, which are poor in insulation and are prone to air leakage, resulting in air loss, dust or harmful substances entering the room through the gaps.
A double open double-lit-slit armored door air leakage-proof structure is designed, and a vertical seal and sealing strip are combined to achieve sealing between the child door and the female door through the vertical seal, and the gap is sealed through the design of the seal joint and cover plate to ensure air tightness.
It effectively improves the airtightness of the armored door, prevents gas from entering from the gap, reduces the loss of air heating, improves aesthetics, and prevents gas convection and noise generation.
Smart Images
Figure CN223034850U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of armored doors, and particularly relates to an air leakage prevention structure for a double-leaf double-exposed-seam armored door that opens in opposite directions. Background Art
[0002] In special buildings and facilities, armored doors with excellent protective performance are one of the key facilities for ensuring safety. Such doors not only need to have extremely high explosion-proof and impact-resistant capabilities, but also must provide effective sealing when closed to prevent the infiltration of external environmental factors such as sand, air currents, chemical substances, or radiation. This is particularly important for occasions with strict requirements for the internal environment. Any slight air leakage may lead to out-of-control environmental conditions and even cause serious consequences.
[0003] Traditional armored doors mostly adopt single-door or ordinary double-door structures. Although these designs can, to a certain extent, resist external impacts and external forces, they often have deficiencies in sealing performance. In an ordinary double-door structure, it is often difficult to achieve complete airtightness at the joint (i.e., the exposed seam) between the two doors. Especially in winter in the northeast and northwest regions, the heat preservation performance is poor and it is easy to leak air. There are no sealing strips provided at the upper and lower ends between the two doors of the armored door, resulting in the loss of air and heat, and dust or harmful substances entering the room through the gaps. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a reasonably designed air leakage prevention structure for a double-leaf double-exposed-seam armored door that opens in opposite directions to solve the above-mentioned deficiencies in view of the defects and deficiencies of the prior art.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions: It includes a door frame, in which a sub-door and a mother-door are rotatably installed. The main structures of the sub-door and the mother-door are the same. The sub-door includes a frame-shaped door body frame composed of a sub-door lock bracket, a hinge bracket, an upper bracket, and a lower bracket made of profiles. Strength plates are respectively installed on the front and rear sides of the door body frame, and decorative plates are installed on the outer sides of the strength plates; there is a door lock on the mother-door, a lock block installation hole for installing a lock box is opened on the sub-door lock bracket, a first sealing strip is provided on the outer sides of the upper and lower ends of the sub-door, a vertical sealing strip is vertically provided on the side of the mother-door, and the vertical sealing strip faces the two first sealing strips; second sealing strips are provided at the inner sides of the upper and lower ends of the door frame where they are in contact with the sub-door and the mother-door. Covers are installed at the upper and lower ends of the sub-door lock bracket, a sealing strip joint is provided on the cover, and one end of the first sealing strip is inserted into the sealing strip joint.
[0006] Preferably, the outer shape of the cover matches the port shape of the sub-door lock bracket. Several screw holes are respectively provided at the two ends of the sub-door lock bracket, and the cover is installed on the screw holes through bolts.
[0007] Preferably, the seal joint is made of foamed ethylene propylene diene monomer (EPDM). The seal joint has an open-ended shape at the tail. The first sealing strip is inserted into the tail end of the seal joint, and the top end of the seal joint is fitted with the vertical seal.
[0008] After adopting the above structure, the beneficial effects of the present utility model are as follows:
[0009] This structure uses a vertical seal to seal the main part between the sub-door and the main door. The two seal joints block the gaps between the upper and lower ends of the vertical seal and the two first sealing strips, thus ensuring the airtightness of the armored door. While the cover plate installs and fixes the seal joint, it also blocks the end of the sub-door lock catch. On the one hand, it improves the aesthetics, and on the other hand, it can prevent air convection from forming between the upper and lower ends of the sub-door lock catch and generating noise due to vibration, and enhances the airtightness. Description of the Drawings
[0010] Figure 1 is the overall structural schematic diagram of the present utility model;
[0011] Figure 2 is the main structural explosion diagram of the sub-door of the present utility model;
[0012] Figure 3 is the top partial sectional view of the sub-door of the present utility model;
[0013] Figure 4 is the structural installation schematic diagram of the connection between the top ends of the sub-door and the main door of the present utility model;
[0014] Figure 5 is the structural schematic diagram of the connection between the sub-door and the main door of the present utility model when the cover plate is not installed.
[0015] Description of the Reference Numerals:
[0016] 1, door frame; 2, sub-door; 3, main door; 4, door lock; 5, door body frame; 6, lock block installation hole; 7, strength plate; 8, decorative plate; 9, cover plate; 10, first sealing strip; 11, second sealing strip; 12, seal joint; 13, sub-door lock catch; 14, vertical seal. Detailed Embodiment
[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0018] Refer to Figures 1-5As shown in the figure, it includes a door frame 1, in which a sub-door 2 and a mother door 3 are rotatably installed. The main structures of the sub-door 2 and the mother door 3 are the same. The sub-door 2 includes a frame-shaped door body frame 5 composed of a sub-door lock stop 13, a hinge stop, an upper stop, and a lower stop made of profiles. Strength plates 7 are respectively installed on the front and rear sides of the door body frame 5, and decorative plates 8 are installed on the outer sides of the strength plates 7; a door lock 4 is provided on the mother door 3, a lock block installation hole 6 for installing a lock box is opened on the sub-door lock stop 13, a first sealing strip 10 is provided on the outer sides of the upper and lower ends of the sub-door 2, a vertical seal strip 14 is vertically provided on the side of the mother door 3, and the vertical seal strip 14 is opposite to the two first sealing strips 10; second sealing strips 11 are provided at the inner sides of the upper and lower ends of the door frame 1 where they are in contact with the sub-door 2 and the mother door 3. Cover plates 9 are respectively installed at the upper and lower ends of the sub-door lock stop 13, and a seal strip joint 12 is provided on each cover plate 9. One end of the first sealing strip 10 is inserted into the seal strip joint 12;
[0019] The outer shape of the cover plate 9 matches the port shape of the sub-door lock stop 13. Several screw holes are respectively provided at both ends of the sub-door lock stop 13, and the cover plate 9 is installed on the screw holes through bolts;
[0020] The seal strip joint 12 is made of foamed ethylene propylene diene monomer (EPDM). The seal strip joint 12 is in the shape of an open tail. The first sealing strip 10 is inserted into the tail end of the seal strip joint 12, and the top end of the seal strip joint 12 is in contact with the vertical seal strip 14.
[0021] The principle and usage process of the present utility model are as follows:
[0022] The main structures of the sub-door 2 and the mother door 3 are respectively manufactured and installed, the first sealing strip 10 and the vertical seal strip 14 are installed, and then the two seal strip joints 12 are respectively clamped onto the two cover plates 9. One cover plate 9 is placed at the top end of the sub-door lock stop 13, and at the same time, the end of the first sealing strip 10 is inserted into the seal strip joint 12 of the cover plate 9. Push the seal strip joint 12 to make it inserted in place. At this time, the cover plate 9 is aligned with the top of the sub-door lock stop 13, and then the cover plate 9 is installed through bolts. Then, the other cover plate 9 is also installed in place at the bottom end of the sub-door lock stop 13 in the same way, and then the installation of other components can be carried out;
[0023] After the installation is completed, when closing the door, the vertical seal strip 14 seals the main part between the sub-door 2 and the mother door 3, and the two seal strip joints 12 respectively block the gaps between the upper and lower ends of the vertical seal strip 14 and the two first sealing strips 10, so as to ensure the airtightness of the armored door, prevent gas from entering through the gaps and then entering the inside of the armored door after passing through the anti-pry plate. While the cover plate 9 installs and fixes the seal strip joint 12, it blocks the ends of the sub-door lock stop 13. On the one hand, it improves the aesthetics, and on the other hand, it can prevent gas from forming convection between the upper and lower ends of the sub-door lock stop 13 and generating noise due to vibration, enhancing the airtightness.
[0024] It should be understood that the above specific embodiments of the present utility model are only used for exemplary illustration or explanation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all variations and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A wind leakage prevention structure for a double-open seam armored door, comprising a door frame (1), characterized in that: A sub-door (2) and a main door (3) are rotatably mounted in a door frame (1). The main structures of the sub-door (2) and the main door (3) are the same. The sub-door (2) comprises a frame-shaped door body frame (5) composed of a sub-door lock stop (13) made of a profile, a hinge stop, an upper stop and a lower stop. Strength plates (7) are respectively mounted on the front and rear sides of the door body frame (5). A decorative plate (8) is mounted on the outer side of the strength plate (7). The main door (3) is provided with a door lock (4). A lock block mounting hole (6) for mounting a lock box is opened on the sub-door lock stop (13). A sealing strip (10) is provided at the outer sides of the upper and lower ends of the sub-door (2), and a vertical sealing strip (14) is provided vertically on the side of the main door (3), and the vertical sealing strip (14) is opposite to the two sealing strips (10); a sealing strip (11) is provided at the inner sides of the upper and lower ends of the door frame (1) and at the joints between the sub-door (2) and the main door (3), and a cover plate (9) is installed at the upper and lower ends of the sub-door lock (13), and a sealing strip joint (12) is provided on the cover plate (9), and one end of the sealing strip (10) is inserted into the sealing strip joint (12).
2. The wind leakage prevention structure of the double-open seam armored door according to claim 1 is characterized by: The outer shape of the cover plate (9) matches the shape of the port of the sub-door lock block (13), and a plurality of screw holes are respectively provided at both ends of the sub-door lock block (13), and the cover plate (9) is mounted on the screw holes by means of bolts.
3. The wind leakage prevention structure of the double-open seam armored door according to claim 2 is characterized by: The sealing joint (12) is made of foamed EPDM rubber and is in a shape with an open tail. The sealing strip (10) is inserted into the tail end of the sealing joint (12), and the top end of the sealing joint (12) is in contact with the vertical sealing strip (14).