A60 fireproof sliding door

Abstract

This utility model relates to the field of ship outfitting technology and discloses an A60-grade fireproof sliding door, including a door frame and a door leaf. The door frame includes an upper guide, a lower guide, and a side frame. Fixed channel steels are respectively provided on the side frame and the bulkhead. The fixed channel steels combine to form a closed stop. A flame-retardant sealing strip is provided in the closed stop, contacting the inner surface of the door leaf. At least one fireproof strip is provided on the fixed channel steel on the side frame, located on one side of the flame-retardant sealing strip. The door leaf slides in cooperation with the upper and lower guides, allowing the door leaf to press against the flame-retardant sealing strip and move closer to or away from the side frame. The aforementioned A60-grade fireproof sliding door incorporates a flame-retardant sealing strip and a fireproof strip in the closed stop designed around the opening in the bulkhead. Simultaneously, under the action of the upper and lower guides, the A60-grade fireproof sliding door possesses multiple properties including weather tightness, air tightness, and A60-grade fire resistance.

Description

Technical Field

[0001] This utility model relates to the field of ship outfitting technology, and in particular to an A60-grade fireproof sliding door. Background Technology

[0002] Sliding doors, often in the form of push-pull mechanisms, are installed on the bulkheads of some ships. Compared to hinged doors, sliding doors move along the bulkhead when opened, without occupying extra space. However, there is an inherent gap between the door leaf and the track, resulting in relatively poor sealing and inferior sound insulation and heat insulation compared to hinged doors. Currently, sliding doors installed on ships use a structure where the door frame and door leaf are pressed together with rubber strips. This generally meets the requirements for weather tightness, but its fire resistance and air tightness are insufficient. On the one hand, the door frame and door leaf are sealed by pressing together with rubber strips, but without fire-resistant rubber strips or fire-resistant fillers, they cannot block flames and high-temperature smoke. In the event of a fire, they are prone to deformation and failure, failing to meet the A60 fire rating standard (maintaining structural integrity and thermal insulation for 60 minutes). On the other hand, relying on linear tracks and pulley systems for sliding, gaps must be left between the door leaf and the door frame to ensure smooth movement. This results in a gas leakage path even when closed, failing to isolate toxic vapors or flammable gases. Utility Model Content

[0003] Based on the above, the purpose of this utility model is to provide an A60-grade fireproof sliding door that meets multiple performance requirements for wind and rain tightness, air tightness, and A60-grade fire resistance.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fire-resistant sliding door of grade A60 includes a door frame and a door leaf installed on the exterior side of the bulkhead. The door frame includes an upper guide, a lower guide, and a side frame. The upper guide is fixed above the outer surface of the opening of the bulkhead, the lower guide is fixed below the outer surface of the opening of the bulkhead, and the side frame is fixed to one side of the outer surface of the opening of the bulkhead. Fixed channel steel is provided on the side frame and the bulkhead, and the fixed channel steel is combined to form a closed stop. A flame-retardant sealing strip is provided in the closed stop and contacts the inner surface of the door leaf. At least the fixed channel steel on the side frame is provided with a fireproof strip located on one side of the flame-retardant sealing strip. The door leaf slides in cooperation with the upper guide and the lower guide, so that the door leaf can press against the flame-retardant sealing strip and move closer to or away from the side frame.

[0006] As an alternative, the upper guide includes a first support fixed to the bulkhead, the first support being provided with a hoisting rail and a first roller located on the lower side of the hoisting rail, the top of the sliding door leaf being provided with a hoisting wheel and a track groove, the hoisting wheel rolling in the hoisting rail, and a first protrusion on the side wall of the track groove near the closed stop being provided to contact the first roller, the first protrusion being used to keep the upper edge of the sliding door leaf pressed against the flame-retardant sealing strip.

[0007] As an alternative, the lower guide includes a second support fixed to the bulkhead, a column on the second support, a second roller on the column, a guide groove at the bottom of the sliding door leaf, and a second protrusion on the side wall of the guide groove near the closing stop that contacts the second roller. The second protrusion is used to keep the lower edge of the sliding door leaf pressed against the flame-retardant sealing strip.

[0008] As an alternative, both the side frame and the sliding door leaf are made of steel plate, with the side frame welded to the bulkhead and the sliding door leaf filled with ceramic cotton.

[0009] As an alternative, the bulkhead is provided with a cover that conceals the fit gap between the side frame and the sliding door leaf, and the fit gap between the upper guide and the sliding door leaf.

[0010] As an alternative, the sliding door leaf is equipped with a door lock that engages with the side frame for locking, and the cabin enclosure is equipped with a stopper that contacts the door lock handle. The stopper is used to limit the maximum opening degree of the sliding door leaf.

[0011] As an alternative, a buffer seat is provided on the bulkhead that contacts the side edge of the sliding door leaf away from the side frame.

[0012] As an optional solution, a fire vent is provided on the sliding door leaf.

[0013] As an optional solution, a window is provided on the sliding door leaf.

[0014] The beneficial effects of this utility model are:

[0015] The A60-class fireproof sliding door incorporates flame-retardant sealing strips and fireproof strips in its enclosed stop design around the cabin bulkhead opening. With the aid of upper and lower guides, the door leaf is pressed tightly against the flame-retardant sealing strips, meeting the requirements for weather tightness and air tightness. Furthermore, the addition of fireproof strips to the already fire-resistant door leaf effectively reduces external heat conduction, achieving the A60-class fire resistance standard, thus potentially promoting the application of sliding doors on ships. Attached Figure Description

[0016] Figure 1 This is a front view of the A60-grade fireproof sliding door provided in this embodiment of the utility model;

[0017] Figure 2 This is a cross-sectional view of the A60 fireproof sliding door provided in this embodiment of the utility model;

[0018] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a longitudinal sectional view of the A60-class fireproof sliding door provided in this embodiment of the utility model;

[0020] Figure 5 yes Figure 4 Enlarged view at point B in the middle;

[0021] Figure 6 yes Figure 4 Enlarged view of point C in the middle.

[0022] In the attached image:

[0023] 1. Sliding door leaf; 2. Side frame; 3. Fixed channel steel; 4. Flame-retardant sealing strip; 5. Fireproof strip; 6. First support base; 7. Lifting track; 8. First roller; 9. Hanging wheel; 10. Track groove; 11. First protrusion; 12. Second support base; 13. Column; 14. Second roller; 15. Guide groove; 16. Second protrusion; 17. Ceramic wool; 18. Cover; 19. Door lock; 20. Stopper; 21. Buffer seat; 22. Fire vent; 23. Viewing window; 24. Cabin bulkhead. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0029] Please see Figures 1 to 6 As shown, this embodiment provides an A60-grade fireproof sliding door, including a sliding door frame and a sliding door leaf 1 installed on the outdoor side of the bulkhead 24. The sliding door frame includes an upper guide, a lower guide, and a side baffle 2. The upper guide is fixed above the outer surface of the opening of the bulkhead 24, the lower guide is fixed below the outer surface of the opening of the bulkhead 24, and the side baffle 2 is fixed to one side of the outer surface of the opening of the bulkhead 24. Fixed channel steel 3 is respectively provided on the side baffle 2 and the bulkhead 24. The fixed channel steel 3 at each location is combined to form a closed stop. A flame-retardant sealing strip 4 is provided in the closed stop and contacts the inner side of the sliding door leaf 1. At least the fixed channel steel 3 on the side baffle 2 is provided with a fireproof strip 5 located on one side of the flame-retardant sealing strip 4. The sliding door leaf 1 slides in cooperation with the upper guide and the lower guide, so that the sliding door leaf 1 can press the flame-retardant sealing strip 4 and move closer to or away from the side baffle 2.

[0030] Therefore, flame-retardant sealing strips 4 and fireproof strips 5 are designed into the closed stop designed around the opening of the bulkhead 24. Under the action of the upper and lower guides, the sliding door leaf 1 is pressed tightly against the flame-retardant sealing strips 4, which meets the requirements of weather tightness and air tightness. At the same time, the addition of fireproof strips 5 on the basis of the fireproof capability of the sliding door leaf 1 can effectively reduce external heat conduction and achieve the A60 fire protection standard, thus making it possible to promote the application of sliding doors on ships.

[0031] Among them, the flame-retardant sealing strip 4 has dual functions of sealing and fire prevention. It can withstand a high temperature of 980℃ and remain non-combustible and non-ashed for 30 minutes, meeting the stringent fire prevention standards. It has high resilience and resistance to compression deformation. It is not easy to age or deform after long-term use, ensuring the durability of the seal. It is also wear-resistant, pressure-resistant, aging-resistant, and corrosion-resistant.

[0032] Fireproof strip 5 is made of expanded graphite material. Expanded graphite can expand 150 to 250 times when exposed to high temperature (above 200℃), thereby filling the gaps, isolating oxygen and suffocating the flame. Its flame retardant efficiency is far superior to traditional materials, achieving rapid sealing and fire prevention. It is also environmentally friendly, safe, halogen-free and non-toxic. The location of fireproof strip 5 is not limited to the side frame 2 of the opening of the bulkhead 24. It can also be arranged at the upper edge and lower edge of the opening of the bulkhead 24.

[0033] Optionally, the upper guide includes a first support 6 fixed to the bulkhead 24. The first support 6 is provided with a hoisting rail 7 and a first roller 8 located on the lower side of the hoisting rail 7. The top of the sliding door leaf 1 is provided with a hoisting wheel 9 and a track groove 10. The hoisting wheel 9 rolls in the hoisting rail 7. The side wall of the track groove 10 near the closed stop is provided with a first protrusion 11 that contacts the first roller 8. The first protrusion 11 is used to keep the upper edge of the sliding door leaf 1 pressed against the flame-retardant sealing strip 4.

[0034] Thus, the gantry 9 rolls within the lifting track 7, bearing the weight of the sliding door leaf 1 and ensuring that the sliding door leaf 1 moves smoothly and horizontally without swaying, making it suitable for high-vibration environments on ships. When the first protrusion 11 contacts the first roller 8, it generates a lateral force on the first protrusion 11 toward the flame-retardant sealing strip 4, forcing the upper edge of the sliding door leaf 1 to always press against the flame-retardant sealing strip 4, thereby achieving dynamic sealing and preventing seal failure when the ship is turbulent, thus improving water tightness and air tightness.

[0035] Optionally, the lower guide includes a second support seat 12 fixed to the bulkhead 24, a column 13 is provided on the second support seat 12, a second roller 14 is provided on the column 13, a guide groove 15 is provided at the bottom of the sliding door leaf 1, and a second protrusion 16 is provided on the side wall of the guide groove 15 near the closing stop, which contacts the second roller 14. The second protrusion 16 is used to keep the lower edge of the sliding door leaf 1 pressed against the flame-retardant sealing strip 4.

[0036] Thus, the second roller 14 rolls within the guide groove 15, ensuring reliable guidance for the sliding door leaf 1 at the bottom and preventing it from swinging back and forth or derailing. When the second protrusion 16 contacts the second roller 14, it generates a lateral force on the second protrusion 16 toward the flame-retardant sealing strip 4, forcing the lower edge of the sliding door leaf 1 to always press against the flame-retardant sealing strip 4, thereby achieving dynamic sealing and preventing seal failure when the ship is rocking, thus improving water tightness and air tightness.

[0037] Optionally, both the side frame 2 and the sliding door leaf 1 are made of steel plate, the side frame 2 is welded to the bulkhead 24, and the sliding door leaf 1 is filled with ceramic cotton 17.

[0038] Therefore, the steel plate structure ensures that the sliding door leaf 1 and the side frame 2 have sufficient rigidity to adapt to the high load environment of the ship; the ceramic wool 17 is a Class A non-combustible material, which significantly improves the fire resistance limit of the entire door and meets the fire separation requirements of the ship.

[0039] Optionally, the bulkhead 24 is provided with a cover 18 to cover the gap between the side frame 2 and the sliding door leaf 1, and the gap between the upper guide and the sliding door leaf 1.

[0040] Considering that sliding doors have larger gaps compared to hinged doors, these gaps are sealed and isolated with flame-retardant sealing strips 4. However, moisture and dust can easily corrode the flame-retardant sealing strips 4, shortening their service life. To address this, a cover 18 is used to completely cover the gaps between the side frame 2 and the sliding door leaf 1, and between the upper guide and the sliding door leaf 1, preventing most foreign objects, dust, and moisture from entering the gaps. This protects the flame-retardant sealing strips 4, makes the appearance smoother, facilitates daily cleaning, and improves the overall aesthetics.

[0041] Optionally, the sliding door leaf 1 is provided with a door lock 19 that engages with the side frame 2 for locking, and the cabin bulkhead 24 is provided with a stopper 20 that contacts the lock handle of the door lock 19. The stopper 20 is used to limit the maximum opening degree of the sliding door leaf 1.

[0042] Thus, the sliding door leaf 1 and the side frame 2 can be quickly and reliably manually locked by the door lock 19, and the stopper 20 controls the maximum opening degree of the sliding door leaf 1 by limiting the position of the lock handle of the door lock 19, avoiding injury to personnel and damage to the door leaf. The existing lock handle is used as a limit, which is low cost; of course, the stopper 20 is provided with a flexible contact part to avoid damage to the lock handle.

[0043] Optionally, a buffer seat 21 is provided on the bulkhead 24 to contact the side edge of the sliding door 1 away from the side frame 2.

[0044] Therefore, the buffer seat 21 absorbs the impact energy when the sliding door leaf 1 is fully open, reduces noise, and protects the structure of the sliding door leaf 1 itself and its mating structure with the upper and lower guides.

[0045] Optionally, a fire vent 22 is provided on the sliding door leaf 1.

[0046] Therefore, the reserved fire hole 22 can be quickly connected to the fire hose / foam gun without opening the sliding door 1 in case of fire, reducing the risk of fire spreading, and can also provide an emergency ventilation passage when the sliding door 1 is locked.

[0047] Optionally, a viewing window 23 is provided on the sliding door leaf 1.

[0048] Therefore, the viewing window 23 allows for easy observation of the situation inside and outside the door, avoiding collisions with people or obstacles when opening, and is especially suitable for narrow passages; the viewing window 23 is equipped with fireproof glass to meet the requirements of fire resistance integrity, taking into account both lighting and fire protection functions.

[0049] In summary, this A60-grade fireproof sliding door combines multiple properties such as weather tightness, air tightness, and A60-grade fire resistance, which can meet the needs of various usage scenarios and shipboard installation requirements, and has great market promotion and application value.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An A60-grade fire-resistant sliding door, characterized in that: The enclosure includes a sliding door frame and a sliding door leaf (1) located on the exterior side of the bulkhead (24). The sliding door frame includes an upper guide, a lower guide, and a side baffle (2). The upper guide is fixed above the outer surface of the opening of the bulkhead (24), the lower guide is fixed below the outer surface of the opening of the bulkhead (24), and the side baffle (2) is fixed to one side of the outer surface of the opening of the bulkhead (24). Fixed channel steel (3) is provided on both the side baffle (2) and the bulkhead (24). The steel (3) is assembled to form a closed stop, and a flame-retardant sealing strip (4) is provided in the closed stop to contact the inner side of the sliding door leaf (1). At least the fixed channel steel (3) on the side frame (2) is provided with a fireproof strip (5) located on one side of the flame-retardant sealing strip (4). The sliding door leaf (1) is slidably engaged with the upper guide and the lower guide respectively, so that the sliding door leaf (1) can press the flame-retardant sealing strip (4) and move closer to or away from the side frame (2).

2. The A60 fire-resistant sliding door according to claim 1, characterized in that, The upper guide includes a first support seat (6) fixed on the cabin wall (24). The first support seat (6) is provided with a hoisting rail (7) and a first roller (8) located on the lower side of the hoisting rail (7). The top of the sliding door leaf (1) is provided with a hoisting wheel (9) and a track groove (10). The hoisting wheel (9) rolls in the hoisting rail (7). The side wall of the track groove (10) near the closed stop is provided with a first protrusion (11) that contacts the first roller (8). The first protrusion (11) is used to keep the upper edge of the sliding door leaf (1) pressed against the flame-retardant sealing strip (4).

3. The A60 fire-resistant sliding door according to claim 1, characterized in that, The lower guide includes a second support seat (12) fixed on the cabin wall (24), a column (13) is provided on the second support seat (12), a second roller (14) is provided on the column (13), a guide groove (15) is provided at the bottom of the sliding door leaf (1), a second protrusion (16) is provided on the side wall of the guide groove (15) near the closed stop, which contacts the second roller (14), and the second protrusion (16) is used to keep the lower edge of the sliding door leaf (1) pressed against the flame-retardant sealing strip (4).

4. The A60 fire-resistant sliding door according to claim 1, characterized in that, Both the side frame (2) and the sliding door leaf (1) are made of steel plate. The side frame (2) is welded to the cabin wall (24). The sliding door leaf (1) is filled with ceramic cotton (17).

5. The A60 fire-resistant sliding door according to claim 1, characterized in that, The cabin wall (24) is provided with a cover (18) that covers the gap between the side frame (2) and the sliding door leaf (1) and the gap between the upper guide and the sliding door leaf (1).

6. The A60 fire-resistant sliding door according to claim 1, characterized in that, The sliding door leaf (1) is provided with a door lock (19) that engages with the side frame (2) for locking. The cabin wall (24) is provided with a stopper (20) that contacts the lock handle of the door lock (19). The stopper (20) is used to limit the maximum opening degree of the sliding door leaf (1).

7. The A60 fire-resistant sliding door according to claim 1, characterized in that, The cabin wall (24) is provided with a buffer seat (21) that contacts the side edge of the sliding door leaf (1) away from the side frame (2).

8. The A60 fire-resistant sliding door according to claim 1, characterized in that, The sliding door leaf (1) is provided with a fire vent (22).

9. The A60 fire-resistant sliding door according to claim 1, characterized in that, The sliding door leaf (1) is provided with a viewing window (23).

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