High-temperature-resistant fireproof expansion sealing safety door

Abstract

The utility model relates to safety door technical field discloses a kind of high-temperature-resistant fireproof expansion sealing safety door, including outer frame mechanism and the inner body mechanism being arranged in its inside, the inner body mechanism includes door body and fixed seat, the door body includes fireproof panel, and the inside and outside both sides of the fireproof panel are fixedly installed with high-temperature-resistant support framework, by the inner body mechanism being set, adopt multilayer composite door body structure, combine high-temperature-resistant metal panel, fireproof heat insulation layer and high-temperature-resistant support framework, substantially improve the high-temperature-resistant performance and structural stability of door body, do not occur deformation and collapse after long time use, effectively prolong the protection time of safety door, T type expansion sealing strip can automatically expand under high temperature, tightly fill the gap between door body and door frame, form reliable sealing barrier, solve the poor sealing performance problem of existing safety door under high temperature, effectively block the spread of flame and high-temperature flue gas.

Description

Technical Field

[0001] This utility model relates to the field of security door technology, and in particular to a high-temperature resistant and fireproof expansion-sealed security door. Background Technology

[0002] In construction and industrial production, security doors serve as important protective facilities, and their fire resistance, high temperature resistance, and sealing performance are crucial.

[0003] Currently, while some fire-resistant safety doors exist on the market, most rely solely on fire-resistant panels to enhance fire resistance, lacking effective sealing structures. In high-temperature environments, the gaps between the door and frame widen further due to thermal expansion and contraction, significantly reducing the sealing effect. Some safety doors with sealing structures use ordinary rubber as their sealing material, which is prone to melting and combustion at high temperatures, failing to maintain a seal for extended periods and thus unable to meet the long-term fire and smoke protection requirements of fire scenes. Furthermore, existing fire-resistant safety doors generally have low high-temperature resistance limits; in ultra-high-temperature environments, the door structure is prone to collapse, losing its protective function. Therefore, we propose a high-temperature resistant, fire-resistant, expansion-sealed safety door. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature resistant and fireproof expansion-sealed safety door to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant and fireproof expansion-sealed safety door, comprising an outer frame mechanism and an inner body mechanism disposed therein. The inner body mechanism includes a door body and a fixing seat. The door body includes a fireproof panel. High-temperature resistant support frames are fixedly installed on both the inner and outer sides of the fireproof panel. Fireproof and heat-insulating layers are fixedly installed on the outer sides of the high-temperature resistant support frames. High-temperature resistant metal panels are fixedly installed on the outer sides of the fireproof and heat-insulating layers. Fireproof locks are fixedly installed on the door body. External reinforcing beams are fixedly installed around the door body. Internal reinforcing steel bars are fixedly installed on the inner sides of the external reinforcing beams. The internal reinforcing steel bars are fixedly installed inside the door body. A T-shaped expansion sealing strip is connected to the fixing seat through a T-slot.

[0006] As a preferred embodiment, the high-temperature resistant metal panel is made of stainless steel alloy, the fireproof and heat-insulating layer is made of expanded perlite and high-temperature resistant ceramic fiber mixed and pressed, the high-temperature resistant support frame is made of high-temperature resistant alloy steel strips welded together, and the fireproof panel is made of fireproof gypsum board and high-temperature resistant fiberglass cloth composite.

[0007] As a preferred embodiment, the outer wall of the external reinforcing beam is provided with multiple sets of first threaded holes, the T-slot is provided inside the fixed seat, the T-shaped expansion sealing strip is inserted into the T-slot, and the T-shaped expansion sealing strip is made of a mixture of expanded graphite and high-temperature resistant rubber.

[0008] As a preferred embodiment, the surface of the T-slot has a second threaded hole that is the same size as the first threaded hole, and the internal thread of the second threaded hole is connected to a fastening bolt.

[0009] As a preferred embodiment, the outer frame mechanism includes a door frame, the door frame and the door body are connected by hinges, and a sealing groove is provided inside the door frame, the sealing groove is filled with high-temperature resistant heat insulation material.

[0010] As a preferred embodiment, fireproof sealant is fixedly installed on the outer wall of the door frame.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. Through the design of the internal structure, a multi-layer composite door structure is adopted, which combines high-temperature resistant metal panels, fireproof and heat-insulating layers and high-temperature resistant support frames, significantly improving the high-temperature resistance and structural stability of the door. It will not deform or collapse after long-term use, effectively extending the protection time of the safety door. The T-shaped expansion sealing strip can automatically expand at high temperatures, tightly filling the gap between the door and the door frame to form a reliable sealing barrier, solving the problem of poor sealing performance of existing safety doors at high temperatures, and effectively blocking the spread of flames and high-temperature smoke.

[0013] 2. Through the set outer frame mechanism, fireproof sealant is applied to the connection between the door frame and the wall, which further enhances the overall fire resistance and reliability of the safety door, ensuring that the safety door can automatically close and maintain a good fireproof seal after a fire occurs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the internal mechanism of this utility model;

[0016] Figure 3 This is one of the partial structural schematic diagrams of the internal mechanism of this utility model;

[0017] Figure 4 For the present utility model Figure 3 Sectional view of the middle section of the structure;

[0018] Figure 5 This is a second partial structural schematic diagram of the internal mechanism of this utility model;

[0019] Figure 6 The internal structure of this utility model Figure 5 Schematic diagram of the middle section;

[0020] Figure 7 This is a cross-sectional view of the outer frame mechanism of this utility model.

[0021] In the diagram: 1. Outer frame mechanism; 101. Door frame; 102. Sealing groove; 103. High-temperature resistant insulation material; 104. Fireproof sealant; 2. Inner body mechanism; 201. Door body; 2011. Fireproof panel; 2012. High-temperature resistant support frame; 2013. Fireproof insulation layer; 2014. High-temperature resistant metal panel; 202. Fireproof lock; 203. External reinforcing beam; 204. Internal reinforcing steel bar; 205. First threaded hole; 206. Fixing seat; 207. Second threaded hole; 208. Fastening bolt; 209. T-slot; 210. T-shaped expansion sealing strip. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see the appendix Figure 1 - Appendix Figure 6 A high-temperature resistant and fireproof expansion-sealed safety door includes an outer frame mechanism 1 and an inner body mechanism 2 disposed on its inner side. The inner body mechanism 2 includes a door body 201 and a fixing seat 206. The door body 201 includes a fireproof panel 2011. High-temperature resistant support frames 2012 are fixedly installed on both the inner and outer sides of the fireproof panel 2011. Fireproof heat insulation layers 2013 are fixedly installed on the outer sides of the high-temperature resistant support frames 2012. High-temperature resistant metal panels 2014 are fixedly installed on the outer sides of the fireproof heat insulation layers 2013. A fireproof lock 202 is fixedly installed on the door body 201. External reinforcing beams 203 are fixedly installed around the door body 201. Internal reinforcing steel bars 204 are fixedly installed on the inner side of the external reinforcing beams 203. The internal reinforcing steel bars 204 are fixedly installed inside the door body 201. A T-shaped expansion sealing strip 210 is connected to the fixing seat 206 through a T-shaped groove 209.

[0024] Door 201 uses fireproof panel 2011 as its intermediate base layer. High-temperature resistant support frame 2012 is fixed to its inner and outer sides by welding or high-temperature resistant bolts. A fireproof and heat-insulating layer 2013 is fixed to the outside of the high-temperature resistant support frame 2012 using fireproof adhesive. A high-temperature resistant metal panel 2014 is then fixed to the outside of the fireproof and heat-insulating layer 2013 by bolts or welding, forming a symmetrical composite structure to ensure reliable connection and functional coordination among the layers of door 201. Fireproof lock 202 is fixed to the side of door 201 using pre-drilled mounting holes and fireproof bolts. It must penetrate the high-temperature resistant support frame 2012 to ensure a secure installation, enabling the locking and unlocking functions of door 201, and preventing it from falling off at high temperatures. The door body 201 is fixed around the perimeter by welding external reinforcing beams 203; the inner side of the external reinforcing beams 203 is fixed by welding internal reinforcing steel bars 204, and the internal reinforcing steel bars 204 need to be welded to the high-temperature resistant support frame 2012 inside the door body 201 to further improve the structural stability of the door body 201 under high temperature and prevent collapse.

[0025] The high-temperature resistant metal panel 2014 is made of stainless steel alloy, the fireproof and heat-insulating layer 2013 is made of expanded perlite and high-temperature resistant ceramic fiber mixed and pressed, the high-temperature resistant support frame 2012 is made of high-temperature resistant alloy steel strips welded together, and the fireproof panel 2011 is made of fireproof gypsum board and high-temperature resistant fiberglass cloth composite.

[0026] The high-temperature resistant metal panel 2014 has a smooth, easy-to-clean surface, meeting the needs of buildings and industrial sites. The fireproof and heat-insulating layer 2013 fills the gaps in the support frame and effectively blocks heat transfer, ensuring that the temperature inside the door 201 remains below a safe level, protecting personnel safety. The high-temperature resistant support frame 2012 supports the various structural layers of the door 201, preventing bulging and deformation of the door 201 due to thermal expansion and contraction at high temperatures. The fireproof panel 2011, after lamination, has a smooth surface, meeting interior decoration requirements.

[0027] Multiple sets of first threaded holes 205 are opened on the outer wall of the external reinforcing beam 203. T-slots 209 are opened inside the fixed seat 206. T-shaped expansion sealing strips 210 are inserted into the T-slots 209. The T-shaped expansion sealing strips 210 are made of expanded graphite and high-temperature resistant rubber.

[0028] The T-shaped expansion sealing strip 210 expands rapidly at high temperatures to fill the gap between the door body 201 and the door frame 101. The high-temperature resistant rubber is the adhesive and plasticizing component, which binds the expanded graphite particles into a strip. The rubber itself can achieve basic sealing at room temperature and does not melt or burn at high temperatures, ensuring that the sealing strip can play a sealing role throughout the fire.

[0029] The surface of the T-slot 209 has a second threaded hole 207 through it. The size of the second threaded hole 207 is the same as that of the first threaded hole 205. The internal thread of the second threaded hole 207 is connected to a fastening bolt 208.

[0030] The fastening bolt 208 is made of stainless steel. After passing the bolt through the second threaded hole 207 of the fixing seat 206, it is screwed into the first threaded hole 205 of the external reinforcing beam 203. The fixing seat 206 and the external reinforcing beam 203 are detachably connected by bolts, which not only ensures that the fixing seat 206 will not fall off in case of fire, but also facilitates the replacement of the fixing seat 206 or the sealing strip during later maintenance.

[0031] Specifically, a multi-layer composite door body 201 structure is adopted, combining a high-temperature resistant metal panel 2014, a fireproof and heat-insulating layer 2013, and a high-temperature resistant support frame 2012. This significantly improves the high-temperature resistance and structural stability of the door body 201, preventing deformation and collapse after prolonged use and effectively extending the protection time of the safety door. The T-shaped expansion sealing strip 210 can automatically expand at high temperatures, tightly filling the gap between the door body 201 and the door frame 101 to form a reliable sealing barrier. This solves the problem of poor sealing performance of existing safety doors at high temperatures and effectively blocks the spread of flames and high-temperature smoke.

[0032] Please see the appendix Figure 1 and attached Figure 7 The outer frame mechanism 1 includes a door frame 101, which is connected to the door body 201 by a hinge. The door frame 101 has a sealing groove 102 inside, and the sealing groove 102 is filled with a high-temperature resistant heat insulation material 103.

[0033] Fireproof sealant 104 is fixedly installed on the outer wall of the door frame 101.

[0034] The door frame 101 is made of high-temperature resistant steel and is used for fixed connection with the building wall, providing an installation benchmark and support frame for the door 201 to ensure the stability of the door 201 when opening and closing. The two are connected by hinges, which are made of stainless steel or high-temperature resistant alloy steel, and the number of hinges is determined according to the height of the door 201. One side of the hinge is fixed to the inner wall of the door frame 101 by bolts, and the other side is fixed to the external reinforcing beam 203 on the side of the door 201. The contact surfaces of the hinge with the door 201 and the door frame 101 are coated with fireproof sealant 104 to ensure that the hinge does not deform or loosen under high temperature, thus meeting the dual requirements of smooth opening and closing of the door 201 and fireproof sealing. The interior of the sealing groove 102 is completely filled with high-temperature resistant insulation material 103. The material is high-temperature resistant ceramic fiber cotton. It needs to be compacted during filling to prevent the material from falling off when the door frame 101 vibrates. It can also block the heat from being transferred from the gaps in the door frame 101 through the insulation material. At the same time, it provides a buffer space for the high-temperature expansion of the T-shaped expansion sealing strip 210, ensuring that the sealing strip fits more tightly with the door frame 101.

[0035] Specifically, fireproof sealant 104 is installed at the connection between the door frame 101 and the wall, which further enhances the overall fire resistance and reliability of the safety door, ensuring that the safety door can automatically close and maintain a good fireproof seal after a fire occurs.

[0036] The working principle of this utility model is as follows: This utility model is a high-temperature resistant and fireproof expansion sealing safety door. The door frame 101 in the outer frame mechanism 1 is tightly bonded to the building wall through the fireproof sealant 104 on the outer wall, sealing the gap between the door frame 101 and the wall and forming an initial fire barrier. The door frame 101 is connected to the door body 201 of the inner body mechanism 2 through a hinge. When the door body 201 is in the closed state, the fireproof lock 202 locks it to ensure that the door body 201 does not loosen.

[0037] The external reinforcing beams 203 around the door body 201 are connected to the second threaded holes 207 of the fixing seat 206 through the first threaded hole 205 and the fastening bolt 208, so as to achieve the secure installation of the fixing seat 206. The T-shaped expansion sealing strip 210 inserted in the T-shaped groove 209 in the fixing seat 206 is in an unexpanded state at this time, and its surface is aligned with the sealing groove 102 on the inner side of the door frame 101, in preparation for subsequent high-temperature expansion sealing. The high-temperature heat-resistant insulation material 103, such as ceramic fiber cotton, filled in the sealing groove 102 of the door frame 101 initially blocks the transfer of external heat.

[0038] When the ambient temperature rises to 150-200℃ due to a fire, the T-shaped expansion sealing strip 210 begins to expand due to heat. After its volume increases, it fills the T-shaped groove 209 of the fixing seat 206 on the one hand, and extends into the sealing groove 102 of the door frame 101 on the other hand, and fits tightly with the high-temperature heat-insulating material 103 in the sealing groove 102, completely sealing the gap between the door body 201 and the door frame 101, preventing flames and high-temperature smoke from penetrating through the gap.

[0039] The outermost high-temperature resistant metal panel 2014 of the door body 201 is in direct contact with the flame, and its high-temperature resistance prevents the flame from burning the inside of the door body 201; inside the door body 201, the fireproof panel 2011 serves as the inner base layer, and together with the support of the high-temperature resistant support frame 2012, it prevents the door body 201 from undergoing slight deformation due to temperature rise.

[0040] The fireproof and heat-insulating layer 2013 of the door body 201 plays a core heat insulation role. Its low thermal conductivity prevents heat from being transferred to the inside of the door body 201, protecting personnel safety. At the same time, the high-temperature resistant support frame 2012, together with the external reinforcing beam 203 and the internal reinforcing steel bar 204, forms a mesh support structure. The external reinforcing beam 203 enhances the deformation resistance of the door body 201 edges, and the internal reinforcing steel bar 204 strengthens the internal structure of the door body 201. The three work together to prevent the door body 201 from collapsing or bulging under high temperature.

[0041] The lock cylinder of the fireproof lock 202 does not melt or fail, ensuring that the door 201 remains locked. The hinges connecting the door frame 101 and the door 201 maintain structural stability at high temperatures, preventing the door 201 from detaching from the door frame 101. The fireproof sealant 104 on the outer wall of the door frame 101 does not crack at high temperatures, continuously sealing the gap between the door frame 101 and the wall, preventing smoke from spreading from one side of the wall.

[0042] The multi-layered structure of door 201 works in concert to form a continuously effective fire-resistant partition zone, buying crucial time for personnel evacuation and fire rescue.

[0043] After the fire was extinguished, the temperature gradually decreased. Although the T-shaped expansion sealing strip 210 contracted due to the temperature drop, the fireproof sealant 104 of the door frame 101 and the high-temperature heat-insulating material 103 of the sealing groove 102 still maintained structural integrity and could temporarily block the leakage of residual smoke. The multi-layer composite structure and reinforcement structure of the door 201 did not collapse or undergo serious deformation, providing a basis for subsequent maintenance or replacement of the door 201.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-temperature resistant and fireproof expansion-sealed safety door, comprising an outer frame mechanism (1) and an inner body mechanism (2) disposed therein, characterized in that: The internal structure (2) includes a door body (201) and a fixing seat (206). The door body (201) includes a fireproof panel (2011). High-temperature resistant support frames (2012) are fixedly installed on both the inner and outer sides of the fireproof panel (2011). Fireproof heat insulation layers (2013) are fixedly installed on the outer side of the high-temperature resistant support frames (2012). High-temperature resistant metal panels (2014) are fixedly installed on the outer side of the fireproof heat insulation layers (2013). Fireproof locks (202) are fixedly installed on the door body (201). External reinforcing beams (203) are fixedly installed around the door body (201). Internal reinforcing steel bars (204) are fixedly installed on the inner side of the external reinforcing beams (203). The internal reinforcing steel bars (204) are fixedly installed inside the door body (201). The fixing seat (206) is connected to a T-shaped expansion sealing strip (210) through a T-shaped groove (209).

2. The high-temperature resistant and fireproof expansion-sealed safety door according to claim 1, characterized in that: The high-temperature resistant metal panel (2014) is made of stainless steel alloy, the fireproof and heat-insulating layer (2013) is made of expanded perlite and high-temperature resistant ceramic fiber mixed and pressed, the high-temperature resistant support frame (2012) is made of high-temperature resistant alloy steel strips welded together, and the fireproof panel (2011) is made of fireproof gypsum board and high-temperature resistant glass fiber cloth composite.

3. The high-temperature resistant and fireproof expansion-sealed safety door according to claim 2, characterized in that: Multiple sets of first threaded holes (205) are provided on the outer wall of the external reinforcing beam (203). The T-slot (209) is provided inside the fixed seat (206). The T-shaped expansion sealing strip (210) is inserted into the T-slot (209). The T-shaped expansion sealing strip (210) is made of expanded graphite and high-temperature resistant rubber.

4. The high-temperature resistant and fireproof expansion-sealed safety door according to claim 3, characterized in that: The surface of the T-slot (209) has a second threaded hole (207) through it. The size of the second threaded hole (207) is the same as that of the first threaded hole (205). The internal thread of the second threaded hole (207) is connected to a fastening bolt (208).

5. The high-temperature resistant and fireproof expansion-sealed safety door according to claim 1, characterized in that: The outer frame mechanism (1) includes a door frame (101), the door frame (101) and the door body (201) are connected by a hinge, and a sealing groove (102) is provided inside the door frame (101), and the sealing groove (102) is filled with a high-temperature resistant heat insulation material (103).

6. The high-temperature resistant and fireproof expansion-sealed safety door according to claim 5, characterized in that: Fireproof sealant (104) is fixedly installed on the outer wall of the door frame (101).

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