Fireproof and smoke-proof civil air defense door with high sealing performance

By adopting a combined structure of U-shaped door frame and L-shaped door leaf on the civil defense door, combined with sealing strips, encryption components and gear design, the problem of lax sealing in the existing technology is solved, and efficient fire and smoke protection is achieved, ensuring that The safety of the staff in the house.

CN222207677UActive Publication Date: 2024-12-20JIANGSU TIANYU DESIGN & RES INST CO LTD
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Patent Information

Application Number
CN202420854823.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-24
Publication Date
2024-12-20
Estimated Expiration
2034-04-24

AI Technical Summary

Technical Problem

When the existing civil-proof doors are closed naturally, the sealing is not strictly sealed due to the articulation method, which cannot effectively prevent fire and smoke, threatening the lives and safety of people in the house.

Method used

The combination structure of U-shaped door frame and L-shaped door leaf is adopted, and the sealing strips, encrypted components, slide chutes and gears are designed to ensure the sealing of the door leaf and door frame, including the matching of seal strip A, sealing plate, sliding rod and connecting rod. Achieve all-round blockage of smoke design.

Benefits of technology

It effectively improves the sealing of the door leaf and the door frame, avoids the infiltration of smoke, ensures the fireproof and smoke barrier effect, is convenient and stable to prevent the door leaf from being opened easily, and ensures personnel safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The fireproof and smoke-proof civil air defense door comprises a door frame of a U-shaped structure, a through opening is formed in one side face of the door frame, a door leaf of an L-shaped structure is arranged on the inner wall of the through opening in an inserted mode, and the door leaf is connected with the door frame through a manual control connecting structure. One side surface of the door frame is fixedly connected with an upper sealing strip A and a lower sealing strip A; a two-side encryption assembly is arranged on one side surface of the door frame; two sliding grooves in sliding fit with the door leaf are formed in one side face of the door frame. A groove is formed in one side surface of the door leaf; the manual control connecting structure comprises a rack fixedly connected to the inner wall of the bottom of the groove, a handle rotationally connected to the outer wall of one side of the door frame and a gear rotationally connected to the outer wall of the other side of the door frame, the outer wall of the gear is meshed with the outer wall of the rack, and one end of the handle is connected with one end of the gear through a coupler. According to the utility model, all-around fireproof and smoke-blocking effects can be effectively achieved, and the life safety of people in a room cannot be threatened.
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Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense doors, in particular to a fire and smoke proof civil air defense door with high sealing performance. Background Art

[0002] Civil air defense doors are used to protect refugees in an emergency. They are designed to be highly tight and reliable, and can withstand shock waves and explosion pressures of a certain intensity. They are residential protection equipment. Civil air defense doors are usually installed at the entrances and exits of civil air defense projects such as underground shopping malls, hospitals, warehouses, and underground parking garages. They are required to have good sealing properties according to the requirements of the use environment.

[0003] The existing civil air defense door is usually fixed on one side of the door opening by hinged connection. However, this method is not airtight. When the door is closed naturally, there will be a gap between the door and the door frame, which cannot play the role of fire and smoke protection and will threaten the life safety of people in the house. For this reason, we propose a fire and smoke proof civil air defense door with high sealing performance. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a fireproof, smokeproof and human defense door with high sealing performance.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fireproof, smokeproof and civil air-defense door with high sealing performance comprises a door frame with a U-shaped structure, a through opening is arranged on one side of the door frame, a door leaf with an L-shaped structure is inserted into the inner wall of the through opening, and the door leaf is connected to the door frame through a manual connection structure;

[0007] One side of the door frame is fixedly connected with two upper and lower sealing strips A; one side of the door frame is provided with encryption components on both sides.

[0008] As a further solution of the utility model: one side of the door frame is provided with two sliding grooves which form a sliding fit with the door leaf.

[0009] As a further solution of the utility model: a groove is provided on one side of the door leaf.

[0010] As a further solution of the utility model: the manual connection structure includes a rack fixedly connected to the inner wall of the bottom of the groove, a handle rotatably connected to the outer wall of one side of the door frame, and a gear rotatably connected to the outer wall of the other side of the door frame, and the outer wall of the gear is meshed with the outer wall of the rack, and one end of the handle is connected to one end of the gear through a coupling.

[0011] As a further solution of the utility model: a folding plate is fixedly connected to the groove and the corresponding side surface of the door frame.

[0012] As a further solution of the utility model: the encryption components on both sides include a sealing strip B fixedly connected to one side of the door leaf, a sealing plate inserted into one side of the door frame, two upper and lower sliding rods inserted into one side of the door frame, a spring fixedly connected to the sliding rod and the corresponding side of the door frame, two upper and lower cavities arranged on the inner wall of one side of the door frame, and a connecting rod rotatably connected to the inner wall of the bottom of the cavity;

[0013] One side surface of the sealing plate is in the shape of an inclined cut.

[0014] As a further solution of the utility model: the inner walls at both ends of the connecting rod are slidably connected with T-shaped heads, and one end of the two T-shaped heads is respectively rotatably matched with the inner wall of one side of the sealing plate and one end of the sliding rod through the rotating shaft.

[0015] As a further solution of the utility model: one side of the door leaf is fixedly connected with two upper and lower fixing blocks, and one side of the fixing block is provided with a socket adapted to the end of the sliding rod;

[0016] The upper and lower sliding rods correspond horizontally to the positions of the upper and lower insertion holes respectively.

[0017] Compared with the prior art, the utility model provides a fireproof, smokeproof and civil air defense door with high sealing performance, which has the following beneficial effects:

[0018] 1. The highly sealed fireproof and smokeproof civil air defense door has a combined structure of a sealing strip A and encryption components on both sides. When the door leaf is closed, the gap between the door leaf and the door frame on both sides can be sealed. At the same time, the setting of the upper and lower sealing strips A can improve the contact sealing between the door leaf and the upper and lower ends of the door frame, completely avoiding the infiltration of smoke and the like from the gap between the slide groove and the door leaf, which can effectively play an all-round fire and smoke blocking effect and will not threaten the life safety of people in the house.

[0019] 2. When closing the door leaf of this highly sealed fireproof, smokeproof and personal air defense door, hold the handle and forcefully drive it to rotate, and then the door leaf is opened and closed through the sliding groove by the rotation of the gear and the meshing rack. The operation is convenient, and the mutual friction between the sealing strip A and the door leaf and the door frame, as well as the insertion of the sealing plate into the gap between the door leaf and the door frame, can effectively improve the stability of the door leaf when closed and prevent the door leaf from being easily opened.

[0020] 3. For this highly sealed fire and smoke proof civil air defense door, when the door leaf is closed, when the door leaf gradually approaches one side of the door frame, the sliding rod in the front will slowly insert into the socket at the corresponding position, and push the two sliding rods to slide backward under the pushing of the door leaf, so that the spring is stretched and the inclination direction of the connecting rod in the cavity changes. At the same time, the sealing plate will also slide forward under the pushing of the two connecting rods, and then slowly insert into the gap between the door leaf and one side of the door frame through the inclined cut, sealing one side of the door leaf and the door frame, thereby ensuring the sealing of the civil air defense door. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the back structure of the fire and smoke proof and human air defense door with high sealing performance proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the rear view of the open structure of the fire and smoke proof air-defense door with high sealing performance proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the top view of the opening structure of the fire and smoke proof civil air defense door with high sealing performance proposed by the utility model;

[0024] Figure 4 This is a schematic diagram of the front opening structure of the fire and smoke proof man-air defense door with high sealing performance proposed by the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the connection state of the handle and rack of the fireproof, smokeproof and civil air-defense door with high sealing performance proposed by the utility model;

[0026] Figure 6 This is a structural schematic diagram of the connection state of the sealing plate and the sliding rod of the fireproof, smokeproof and civil air defense door with high sealing performance proposed by the utility model.

[0027] In the figure: 1 door frame, 101 slide groove, 1011 sealing strip A, 2 door leaf, 201 groove, 3 folding plate, 4 handle, 5 fixing block, 501 socket, 6 rack, 601 gear, 7 sealing plate, 8 sliding rod, 801 spring, 9 sealing strip B, 10 connecting rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Example 1

[0030] Highly sealed fire and smoke proof doors, such as Figure 1-5As shown, it comprises a door frame 1 which is a U-shaped structure when viewed from above, a through opening is opened on one side of the door frame 1, a door leaf 2 which is an L-shaped structure when viewed from above is inserted into the inner wall of the through opening, and the door leaf 2 is connected to the door frame 1 through a manual connection structure;

[0031] Preferably, the structure of the door frame 1 and the door leaf 2 includes a metal shell, a fireproof material, a heat-insulating material, etc., and the prior art is cited and will not be described in detail here;

[0032] Furthermore, a groove 201 is provided on one side of the door leaf 2;

[0033] Furthermore, the door frame 1 has two sliding grooves 101 on one side near the upper and lower ends thereof, which are slidably matched with the door leaf 2.

[0034] Preferably, a sealing strip A1011 is fixedly connected to one side of the door frame 1 close to the two slide grooves 101; the setting of the upper and lower sealing strips A1011 can improve the contact sealing between the door leaf 2 and the upper and lower ends of the door frame 1, prevent smoke and the like from penetrating from the gap between the slide groove 101 and the door leaf 2, and ensure the smoke-proof effect.

[0035] Among them, the manual connection structure includes a rack 6 fixedly connected to the inner wall of the bottom of the groove 201, a handle 4 rotatably connected to the outer wall of one side of the door frame 1, and a gear 601 rotatably connected to the outer wall of the other side of the door frame 1, and the outer wall of the gear 601 is meshed with the outer wall of the rack 6, and one end of the handle 4 is connected to one end of the gear 601 through a coupling; when closing the door leaf 2, the handle 4 is held and driven to rotate by force, and then the rack 6 is engaged with the rotation of the gear 601 to enable the door leaf 2 to be opened and closed through the slide groove 101, which is easy to operate, and with the help of the mutual friction between the sealing strip A1001 and the door leaf 2 and the door frame 1, and the sealing plate 7 is inserted into the gap between the door leaf 2 and the door frame 1 to effectively improve the stability of the door leaf 2 when closed, and prevent the door leaf 2 from being easily opened.

[0036] Preferably, a folding plate 3 is welded between the groove 201 and the corresponding side of the door frame 1, and is used to shield the groove 201 on the door leaf 2 after closing.

[0037] In order to improve the sealing effect on both sides of the civil air defense door when it is closed, Figure 1-4 and Figure 6 As shown, the side of the door frame 1 facing the door leaf 2 is provided with encryption components on both sides, and the encryption components on both sides include a sealing strip B9 fixedly connected to the side of the door leaf 2 facing the door frame 1, a sealing plate 7 inserted on the side of the door frame 1, two upper and lower sliding rods 8 inserted on the side of the door frame 1, a spring 801 welded to the sliding rod 8 and the side corresponding to the door frame 1, two upper and lower cavities opened on the inner wall of one side of the door frame 1, and a connecting rod 10 rotatably connected to the inner wall of the bottom of the cavity;

[0038] Preferably, one side of the sealing plate 7 is in the shape of an inclined cut, so as to facilitate its insertion into the gap between the door leaf 2 and the door frame 1 for filling.

[0039] Preferably, the inner walls at both ends of the connecting rod 10 are slidably connected with T-shaped heads, and one end of the two T-shaped heads respectively forms a rotational fit with the inner wall of one side of the sealing plate 7 and one end of the sliding rod 8 through a rotating shaft;

[0040] As a supplement, the door leaf 2 is fixedly connected to a side surface close to the sliding rod 8 with two upper and lower fixing blocks 5, and the fixing block 5 is provided with a plug hole 501 adapted to the end of the sliding rod 8 on a side surface facing the sliding rod 8;

[0041] Preferably, the upper and lower sliding rods 8 correspond horizontally to the positions of the upper and lower insertion holes 501 respectively; during the closing of the door leaf 2, when the door leaf 2 gradually approaches one side of the door frame 1, the front sliding rod 8 will slowly insert into the insertion hole 501 at the corresponding position, and push the two sliding rods 8 to slide backward under the push of the door leaf 2, so that the spring 801 is stretched, and the tilting direction of the connecting rod 10 in the cavity changes. At the same time, the sealing plate 7 will also slide forward under the push of the two connecting rods 10, and then slowly insert into the gap on one side of the door leaf 2 and the door frame 1 through the inclined cut, and seal the door leaf 2 and one side of the door frame 1, thereby ensuring the sealing of the civil air defense door. Moreover, when the door leaf 2 and the door frame 1 are completely closed, the sealing strip B9 can seal the gap on the other side of the door leaf 2 and the door frame 1, further preventing smoke from penetrating into the door from the gap on the side of the door leaf 2 and the door frame 1.

[0042] Working principle: When closing the door leaf 2, hold the handle 4 and force it to rotate, and then the gear 601 rotates to engage the rack 6 so that the door leaf 2 is opened and closed through the slide groove 101. When the door leaf 2 gradually approaches one side of the door frame 1, the front sliding rod 8 will slowly insert into the corresponding position of the plug hole 501, and push the two sliding rods 8 to slide backward under the push of the door leaf 2, so that the spring 801 is stretched, and the inclination of the connecting rod 10 in the cavity changes. At the same time, the sealing plate 7 will also slide forward under the push of the two connecting rods 10, and then slowly insert into the gap on one side of the door leaf 2 and the door frame 1 through the inclined cut, and seal the door leaf 2 and the door frame 1 on one side; when the door leaf 2 and the door frame 1 are completely closed, the sealing strip B9 can seal the gap on the other side of the door leaf 2 and the door frame 1. With the setting of the upper and lower sealing strips A1011, the contact sealing between the door leaf 2 and the upper and lower ends of the door frame 1 can be improved, and smoke and the like can be completely prevented from penetrating from the gap between the slide groove 101 and the door leaf 2.

[0043] Example 2

[0044] Highly sealed fire and smoke proof doors, such as Figure 2-4As shown, this embodiment makes the following supplements on the basis of Embodiment 1: the sealing strip A1001 and the sealing strip B9 can be made of sponge, fiber cloth, foam cotton and other materials.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fireproof, smokeproof and civil air-defense door with high sealing performance, comprising a door frame (1) with a U-shaped structure, characterized in that: A through opening is provided on one side of the door frame (1), and a door leaf (2) having an L-shaped structure is inserted into the inner wall of the through opening. The door leaf (2) is connected to the door frame (1) via a manual connection structure. One side of the door frame (1) is fixedly connected with two upper and lower sealing strips A (1011); and one side of the door frame (1) is provided with encryption components on both sides.

2. The fireproof, smokeproof and civil air-defense door with high sealing performance according to claim 1 is characterized in that: One side of the door frame (1) is provided with two sliding grooves (101) which form a sliding fit with the door leaf (2).

3. The fire and smoke proof door with high sealing performance according to claim 2 is characterized in that: A groove (201) is provided on one side of the door leaf (2).

4. The fireproof, smokeproof and civil air-defense door with high sealing performance according to claim 3 is characterized in that: The manual connection structure comprises a rack (6) fixedly connected to the inner wall of the bottom of the groove (201), a handle (4) rotatably connected to the outer wall of one side of the door frame (1), and a gear (601) rotatably connected to the outer wall of the other side of the door frame (1), wherein the outer wall of the gear (601) is meshed with the outer wall of the rack (6), and one end of the handle (4) is connected to one end of the gear (601) via a coupling.

5. The fire and smoke proof door with high sealing performance according to claim 4 is characterized in that: A folding plate (3) is fixedly connected to the groove (201) and a corresponding side surface of the door frame (1).

6. The fire and smoke proof door with high sealing performance according to claim 1 is characterized in that: The encryption components on both sides include a sealing strip B (9) fixedly connected to one side of the door leaf (2), a sealing plate (7) inserted into one side of the door frame (1), two upper and lower sliding rods (8) inserted into one side of the door frame (1), a spring (801) fixedly connected to the sliding rod (8) and the corresponding side of the door frame (1), two upper and lower cavities arranged on the inner wall of one side of the door frame (1), and a connecting rod (10) rotatably connected to the inner wall of the bottom of the cavity; One side surface of the sealing plate (7) is in the shape of an inclined cut.

7. The fire and smoke proof door with high sealing performance according to claim 6 is characterized in that: The inner walls at both ends of the connecting rod (10) are slidably connected with T-shaped heads, and one end of the two T-shaped heads is respectively rotatably matched with the inner wall of one side of the sealing plate (7) and one end of the sliding rod (8) through a rotating shaft.

8. The fire and smoke proof door with high sealing performance according to claim 7 is characterized in that: One side of the door leaf (2) is fixedly connected to two upper and lower fixing blocks (5), and one side of the fixing block (5) is provided with a plug hole (501) adapted to the end of the sliding rod (8); The upper and lower sliding rods (8) correspond horizontally to the positions of the upper and lower insertion holes (501) respectively.