Energy saving system door

Abstract

According to the application, an energy-saving system door is provided, which comprises a wood board layer, a structure layer, an expansion part, a liquid storage part and a frame. The wood board layer and the structure layer are fixed to the frame. The liquid storage part and the expansion part are arranged between the wood board layer and the structure layer. The liquid storage part is provided with a first sealed cavity, and the first sealed cavity is provided with a liquid fire retardant. The expansion part has a certain expansion coefficient, so that the expansion part can extrude the liquid storage part after the temperature of the expansion part is increased. The liquid storage part can be broken under the pressure, so that the liquid fire retardant is diffused from the first sealed cavity to the wood board layer. When a fire occurs, the wood board layer is heated to a high temperature or ignited, heat can be transferred to the expansion part, the expansion part is heated and expanded, the fire retardant stored in the liquid storage part can be extruded from the first sealed cavity, and the fire retardant can gradually extinguish the open flame after reaching the wood board layer. Thus, a certain escape time can be provided, the wood board layer is prevented from being ignited under an out-of-control fire, personnel cannot approach, and escape failure is avoided.

Description

Technical Field

[0001] This application relates to the field of system doors and windows, and in particular to energy-saving system doors. Background Technology

[0002] In a room with air conditioning, the room's insulation performance determines its energy consumption. The weakest points in room insulation are the doors and windows. Since the thickness of doors and windows is limited, their materials and structural design determine their insulation performance. The better the insulation performance, the more energy-efficient the room.

[0003] Wood is the preferred material for traditional doors and windows. It not only has a beautiful texture, but also a low thermal conductivity coefficient, good heat insulation effect, and a certain sound insulation effect. Therefore, existing aluminum alloy doors and windows are covered with wood panels on the outermost side. Natural wood is green and environmentally friendly. However, this design has certain hidden dangers. In the event of a fire, the wood panels may further spread the fire and block the life-saving passage of people inside the house.

[0004] The thermal conductivity of gases is much lower than that of solids and liquids. Therefore, from the perspective of heat preservation only, hollow structures are designed with a lower thermal conductivity when the strength requirement is met. However, such structures have a major problem: poor sound insulation, which makes them unsuitable for widespread use in some application scenarios.

[0005] Chinese patent application CN207905654U, entitled "A Door Structure for a Soundproof Room," discloses a door structure that employs a multi-layered door leaf, including a first panel layer, a second panel layer, a third panel layer, and a fourth panel layer, forming a vacuum layer and a cavity. The cavity is filled with liquid to achieve a noise reduction effect. However, this structure uses a vacuum layer for heat insulation, which is difficult to manufacture and has a high cost. The liquid filled in the cavity is water, which is easy to evaporate and easily forms scale on the panel, making it difficult to clean.

[0006] Chinese patent application number "CN206874181U" entitled "Fireproof and Soundproof Door" discloses a fireproof and soundproof door. The fireproof and soundproof door includes a door frame assembly and a door leaf, which are rotatably connected to the door frame assembly. The door leaf is provided with a soundproof and fireproof glass assembly, which includes a glass shell with a closed cavity inside. The cavity is filled with transparent fireproof gel, but the hydrogel is expensive and will discolor after long-term use, but it is inconvenient to replace.

[0007] The Chinese patent application with patent number "CN105350889B" entitled "Soundproof Door with Built-in Honeycomb" discloses a soundproof door structure. It has a moisture-proof layer on the inner surface of the outer wooden board, an aluminum honeycomb profile on the inner surface of the moisture-proof layer, and a sound insulation material layer on the inner surface of the aluminum honeycomb profile. It uses wooden board but does not consider fire prevention and flame retardancy in case of emergencies. Summary of the Invention

[0008] This application provides an energy-saving system door to at least address the fire protection problems existing in the prior art.

[0009] According to this application, an energy-saving system door is provided, including a wooden board layer, a structural layer, an expansion section, a liquid storage section, and a frame. The wooden board layer and the structural layer are fixed to the frame. The liquid storage section and the expansion section are disposed between the wooden board layer and the structural layer. The liquid storage section has a first sealing cavity containing a liquid flame retardant. The expansion section has a certain expansion coefficient, which allows it to compress the liquid storage section when its temperature rises. Under pressure, the liquid storage section can rupture, allowing the liquid flame retardant to diffuse from the first sealing cavity to the wooden board layer.

[0010] Compared with existing technologies, the energy-saving system of this application has the following beneficial effects:

[0011] In the event of a fire, when the wooden plank layer is heated to a high temperature or ignited, the heat is transferred to the expansion section. The expansion section expands due to the heat, squeezing out the flame retardant stored in the liquid reservoir from the first sealed cavity. Once the flame retardant reaches the wooden plank layer, it gradually extinguishes the open flame, thus providing some time for escape and preventing the wooden plank layer from catching fire and becoming inaccessible, leading to escape failure. Furthermore, for some special situations, a high-pressure liquid reservoir can be designed. For example, high pressure can be generated using chemical principles, allowing the flame retardant to be sprayed in a specific direction when the reservoir outlet is opened. For instance, if there are flammable materials in front of a door, the flame retardant can be sprayed directly onto the flammable materials, thereby controlling the fire or preventing its spread.

[0012] In one embodiment, the frame is made of multiple thermally broken aluminum alloy profiles connected by corner brackets. A door frame is provided outside the frame, and the frame is hinged to the door frame. A sub-door leaf and a main door leaf are provided inside the door frame. The area of ​​the main door leaf is larger than that of the sub-door leaf, which makes the design more aesthetically pleasing.

[0013] In one embodiment, a sealing plate is provided between the wooden board layer and the expansion part, and the liquid storage part and the expansion part are located between the sealing plate and the structural layer. This design can better support the liquid storage part and the expansion part, and prevent the wooden board layer from deforming, thus affecting the aesthetics.

[0014] In one embodiment, the expansion section is closer to the wooden board layer than the liquid storage section. The expansion section has a through hole, and the liquid storage section has a connecting pipe. The connecting pipe passes through the through hole to reach the wooden board layer. The wooden board layer has a transverse guide groove and a longitudinal guide hole. In this way, the expansion section can absorb heat more quickly and expand and squeeze the liquid storage section, so that the flame retardant in the liquid storage section can directly reach the wooden board layer and be quickly dispersed to various positions through the guide groove and guide hole, thereby quickly controlling the fire.

[0015] In one embodiment, a sealing membrane is provided inside the connecting tube, and a needle is provided on the sealing plate. The needle is inserted into the connecting tube and positioned in front of the sealing membrane, so that the sealing membrane can be punctured by the needle when it moves to contact the needle. Under normal circumstances, the sealing membrane will not be punctured by the needle. Only when the liquid storage part is squeezed, the internal pressure increases and squeezes the sealing membrane, causing it to contact the needle and thus puncture the sealing membrane. This design has high stability.

[0016] In one embodiment, the expansion part is made of elastic material and has a second sealing cavity. The second sealing cavity contains silicone oil. The silicone oil has a low thermal conductivity but a high expansion coefficient, which can have a heat preservation effect. It can also expand in volume and squeeze the liquid storage part when heated. In addition, the liquid also has a certain noise reduction effect, which makes the sound insulation effect better.

[0017] In one embodiment, the sub-door leaf is provided with a first glass layer and a second glass layer, and a third cavity is provided between the first glass layer and the second glass layer. The third cavity is filled with a liquid, which can be silicone oil. Silicone oil is colorless and odorless, has a low thermal conductivity, and can play a heat preservation role. The external liquid also has a certain noise reduction effect, making the sound insulation effect better.

[0018] In one embodiment, the expansion section and the liquid storage section are provided in multiple modular designs, which allows the expansion section to be spliced ​​with adjacent expansion sections, or the liquid storage section to be spliced ​​with adjacent expansion sections, or the liquid storage section to be spliced ​​with adjacent liquid storage sections. The modular design is easy to manufacture, can be adapted to different models and sizes of doors, and has a better noise reduction effect. It can not only reduce production costs, but also has a better sound insulation effect.

[0019] In one embodiment, the expansion portion has a first end face, a second end face, a third end face, and a fourth end face. The first end face and the second end face are arranged opposite to each other, and the third end face and the fourth end face are arranged opposite to each other. The first end face has a first protrusion, and the second end face has a second concave portion. The first protrusion and the second concave portion match so that the first protrusion can be inserted into the second concave portion of the adjacent expansion portion. The third end face has a third protrusion, and the fourth end face has a fourth concave portion. The third protrusion and the fourth concave portion match so that the third protrusion can be inserted into the fourth concave portion of the adjacent expansion portion. This design makes splicing more convenient.

[0020] In one embodiment, the volume of the first sealing cavity is smaller than that of the second sealing cavity. The volume change due to thermal expansion is limited, so a large volume change cannot be generated. Therefore, maximizing the volume difference can provide greater pressure.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0022] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which:

[0023] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0024] Figure 1 This paper shows a schematic diagram of the front structure of the door of the energy-saving system according to an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the rear structure of the door of the energy-saving system according to an embodiment of this application is shown;

[0026] Figure 3 It shows Figure 2 Schematic diagram of the cross section at point AA;

[0027] Figure 4 It shows Figure 2 Schematic diagram of the cross section at point BB;

[0028] Figure 5 It shows Figure 2 Schematic diagram of the cross section at point CC;

[0029] Figure 6 It shows Figure 5 Enlarged view of a portion of point D;

[0030] Figure 7 This paper shows a schematic diagram of the installation positions of the liquid storage section and the expansion section of the door in an embodiment of the energy-saving system of this application;

[0031] Figure 8 This paper shows a front view of the liquid storage section and expansion section of the door of the energy-saving system according to an embodiment of the present application.

[0032] Figure 9 It shows Figure 8 Schematic diagram of the cross-section of the EE location;

[0033] Figure 10 It shows Figure 8 Schematic diagram of the EE position when the central sealing membrane is punctured;

[0034] Figure 11 An exploded schematic diagram of the expansion structure related to the liquid storage section and expansion section of the door in the energy-saving system of this application embodiment is shown;

[0035] Figure 12 This paper shows a schematic diagram of the corner bracket connection of the door in an embodiment of the energy-saving system of this application;

[0036] Figure 13A schematic diagram of the expansion joint splicing of another embodiment of the present application is shown.

[0037] Explanation of the labels in the diagram:

[0038] 1. Main door leaf; 2. Daughter door leaf; 3. Door frame; 4. Frame; 5. Expansion section; 6. Liquid reservoir; 7. Corner bracket; 8. Sealing strip; 10. Inner panel; 11. Wood panel layer; 12. Structural layer; 13. Sealing plate; 14. Needle tube; 21. First glass layer; 22. Second glass layer; 23. Third cavity; 24. Third glass layer; 25. Air cavity; 31. Solid wood layer; 41. First profile; 42. Second profile; 43. Thermal insulation strip; 45. Fifth end face; 46. Sixth end face; 47. Fifth protrusion; 48. Sixth recess; 50. Through hole; 51. 52. First end face; 53. Second end face; 54. Third end face; 55. Fourth end face; 56. First protrusion; 57. Second concave portion; 58. Third protrusion; 59. Fourth concave portion; 60. Second sealing cavity; 61. First sealing cavity; 62. First splicing surface; 63. Second splicing surface; 64. Third splicing surface; 65. Fourth splicing surface; 66. Connecting pipe; 67. Sealing membrane; 68. Front wall; 71. Rear wall; 72. First tenon; 73. Second mortise; 74. Third tenon; 110. Guide groove; 111. Guide hole. Detailed Implementation

[0039] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] like Figure 1 , Figure 3 , Figure 5 and Figure 7 As shown, the energy-saving system door integrates multiple structures. Energy saving is mainly considered from the perspective of heat preservation. The energy-saving system door includes a door frame 3, a sub-door leaf 2, and a mother door leaf 1. The mother door leaf 1 includes a wooden board layer 11, a structural layer 12, an expansion part 5, a liquid storage part 6, and a frame 4. The wooden board layer 11 and the structural layer 12 are fixed to the frame 4. The liquid storage part 6 and the expansion part 5 are arranged between the wooden board layer 11 and the structural layer 12. The liquid storage part 6 has a first sealing cavity 60, which contains a liquid flame retardant. The expansion part 5 has a certain expansion coefficient, which allows it to squeeze the liquid storage part 6 when its temperature rises. Under pressure, the liquid storage part 6 can rupture, allowing the liquid flame retardant to diffuse from the first sealing cavity 60 to the wooden board layer 11.

[0041] like Figure 1 , Figure 2 , Figure 6 and Figure 12 As shown, in one embodiment, the frame 4 is constructed by connecting multiple thermally broken aluminum alloy profiles via corner brackets 7. The thermally broken aluminum alloy profiles are insulated by polyurethane composite thermal insulation strips 43. A door frame 3 is provided outside the frame 4, and multiple sealing strips 8 are provided between the frame 4 and the door frame 3. The frame 4 is hinged to the door frame 3. A sub-door leaf 2 and a main door leaf 1 are provided inside the door frame 3, with the main door leaf 1 having a larger area than the sub-door leaf 2. For example... Figure 12 As shown, the frame 4 includes at least a first profile 41 and a second profile 42. Both the first profile 41 and the second profile 42 have a 45° chamfer. The first profile 41 and the second profile 42 are connected by corner brackets 7. The corner brackets 7 ensure that the splicing angle between the door frame 3 and the door leaf is accurate, making the door close more tightly and less prone to deformation over long-term use. Furthermore, the embedded design results in neat seams and no exposed screws or welds on the surface, enhancing the overall aesthetics.

[0042] like Figure 3 , Figure 5 and Figure 7 As shown, in one embodiment, a sealing plate 13 is provided between the wood panel layer 11 and the expansion portion 5. The sealing plate 13 is made of metal, wood, or polymer materials, preferably aluminum alloy. The liquid storage portion 6 and the expansion portion 5 are disposed between the sealing plate 13 and the structural layer 12. Using solid wood for the wood panel layer 11 is more environmentally friendly and can reduce harmful substances such as formaldehyde indoors. However, solid wood is prone to deformation, so the sealing plate 13 structure can better maintain flatness. The structural layer 12 is made of aluminum honeycomb or other filling materials. The filling material only needs to have a certain supporting capacity and a low thermal conductivity coefficient.

[0043] The wooden board layer 11 is aesthetically pleasing and can be used as the outer panel of the energy-saving system door. The energy-saving system door has an inner panel 10 and an outer panel. The inner panel 10 can be made of aluminum plate, but according to the implementation scheme of this application, the inner panel 10 can also be made of solid wood board, which has better heat preservation and noise reduction effects. In addition, the flame retardant in the liquid storage part 6 also has a certain fireproof effect, which can be more energy-efficient.

[0044] like Figure 3 , Figure 5 , Figure 7 and Figure 11As shown, in one embodiment, the expansion section 5 is closer to the wooden board layer 11 than the liquid storage section 6. The expansion section 5 is provided with a through hole 50, and the liquid storage section 6 is provided with a connecting pipe 65. The connecting pipe 65 passes through the through hole 50 to reach the wooden board layer 11. The wooden board layer 11 is provided with a transverse guide groove 110 and a longitudinal guide hole 111. The transverse direction is the left-right direction of the energy-saving system door, and the longitudinal direction is the front-back direction of the energy-saving system door. The guide hole 111 is a blind hole, that is, when the wooden board is heated but not ignited, the flame retardant can only flow in the guide groove 110. The guide groove 110 provided in the wooden board layer 11 Without surface treatment, the flame retardant can be partially absorbed by the wood layer 11 after soaking in it for a certain period, thus improving its flame retardant effect. However, in the event of a large fire, the wood layer 11 still carries the risk of ignition. Once ignited, as the fire spreads, the guide hole 111 changes from a blind hole to a through hole 50. At this point, the flame retardant can flow along the guide hole 111 to the outer surface of the wood layer 11, which can help control the fire and provide some escape time for those in danger, preventing serious consequences. At room temperature, the liquid storage section 6 is sealed, preventing pollution of the air and indoor environment. In special circumstances, the flame retardant will not cause significant harm to people. Doors and windows are equipped with sealing strips with a basic lifespan of about 20 years. Therefore, the installation of expansion and liquid storage sections will not significantly reduce the lifespan of doors and windows; with qualified materials, they can generally last for more than 15 years.

[0045] like Figure 9 , Figure 10 and Figure 11 As shown, in one embodiment, a sealing membrane 66 is provided inside the connecting tube 65, and a needle tube 14 is provided on the sealing plate 13. The needle tube 14 is inserted into the connecting tube 65 and located in front of the sealing membrane 66, so that the sealing membrane 66 can be punctured by the needle tube 14 when it moves to contact the needle tube 14. The needle tube 14 and the sealing plate 13 can be an integral structure or manufactured separately and directly installed inside the connecting tube 65. The sealing plate 13 only needs to have a flat surface to abut against it.

[0046] like Figure 8 and Figure 9 As shown, the liquid storage section 6 is provided with a front wall 67 and a rear wall 68. The thickness of the rear wall 68 is greater than that of the front wall 67. The front wall 67 has a certain elasticity, and the rear wall 68 has a certain rigidity, which can keep the liquid storage section 6 in a certain shape and provide support for the liquid storage section 6.

[0047] like Figure 9 , Figure 10 and Figure 11 As shown, in one embodiment, the expansion part 5 is made of an elastic material and has a second sealing cavity 59. The second sealing cavity 59 is filled with silicone oil, and ordinary industrial antibacterial silicone oil can be used.

[0048] like Figure 4 and Figure 5As shown, in one embodiment, the sub-door 2 has a first glass layer 21 and a second glass layer 22, with a third cavity 23 between the first glass layer 21 and the second glass layer 22. The third cavity 23 contains a liquid. Ordinary industrial antibacterial silicone oil can be used as the liquid, ensuring low thermal conductivity and good sound insulation. Since silicone oil has a certain coefficient of thermal expansion, the third cavity 23 cannot be completely filled with silicone oil; a certain space must be reserved to allow the silicone oil to expand and contract within a certain range. For sound insulation, the central area of ​​the glass is more effective; therefore, a glass strip or other transparent material is used to isolate a certain area at the center of the first glass layer 21 and the second glass layer 22 to store the silicone oil, and the remaining space can be filled with air or nitrogen. A third glass layer 24 is provided outside the second glass layer 22, and a vacuum cavity or air cavity 25 is formed between the second glass layer 22 and the third glass layer 24.

[0049] like Figure 7 and Figure 8 As shown, in one embodiment, the expansion section 5 and the liquid storage section 6 are provided in multiple and are modularly designed so that the expansion section 5 can be spliced ​​with the adjacent expansion section 5, or the liquid storage section 6 can be spliced ​​with the adjacent expansion section 5, or the liquid storage section 6 can be spliced ​​with the adjacent liquid storage section 6.

[0050] like Figure 7 and Figure 11 As shown, in one embodiment, the expansion portion 5 is designed as a cuboid and has a first end face 51, a second end face 52, a third end face 53, and a fourth end face 54. The first end face 51 and the second end face 52 are arranged opposite to each other, and the third end face 53 and the fourth end face 54 are arranged opposite to each other. The first end face 51 has a first protrusion 55, and the second end face 52 has a second concave portion 56. The first protrusion 55 and the second concave portion 56 are matched so that the first protrusion 55 can be inserted into the second concave portion 56 of the adjacent expansion portion 5. The third end face 53 has a third protrusion 57, and the fourth end face 54 has a fourth concave portion 58. The third protrusion 57 and the fourth concave portion 58 are matched so that the third protrusion 57 can be inserted into the fourth concave portion 58 of the adjacent expansion portion 5.

[0051] like Figure 7 and Figure 11As shown, in one embodiment, the liquid storage section 6 adopts the same design as the expansion section 5. The liquid storage section 6 is designed as a cuboid and is provided with a first splicing surface 61, a second splicing surface 62, a third splicing surface 63, and a fourth splicing surface 64. The first splicing surface 61 and the second splicing surface 62 are arranged opposite to each other, and the third splicing surface 63 and the fourth splicing surface 64 are arranged opposite to each other. The first splicing surface 61 is provided with a first tenon 71, and the second splicing surface 62 is provided with a second mortise 72. The first tenon 71 and the second mortise 72 are matched so that the first tenon 71 can be inserted into the second mortise 72 of the adjacent expansion section 5. The third splicing surface 63 is provided with a third tenon 73, and the fourth splicing surface 64 is provided with a fourth mortise 74. The third tenon 73 and the fourth mortise 74 are matched so that the third tenon 73 can be inserted into the fourth mortise 74 of the adjacent expansion section 5.

[0052] like Figure 9 and Figure 10 As shown, in one embodiment, the volume of the first sealing cavity 60 is smaller than the volume of the second sealing cavity 59. For example... Figure 10 As shown, after the sealing film 66 is punctured, the flame retardant can reach the wooden board layer 11 through the connecting pipe 65 and diffuse through the guide groove 110 and guide hole 111 of the wooden board layer 11.

[0053] like Figure 6 As shown, in one embodiment, an expansion section 5 and a liquid storage section 6 are provided inside the door frame 3, and a solid wood layer 31 is provided outside the door frame 3. The liquid storage section 6 is made of an elastic material and can automatically shrink. After the expansion section 5 expands, it can squeeze and puncture the liquid storage section 6, allowing the flame retardant inside the liquid storage section 6 to be released. The liquid flame retardant is one of JFRP wood flame retardant, Richter water-based coating flame retardant, borate-based liquid flame retardant, or aluminum compound flame retardant.

[0054] Example 2:

[0055] like Figure 13 As shown, the expansion portion 5 is designed in the shape of a hexagonal prism and has a first end face 51, a second end face 52, a third end face 53, a fourth end face 54, a fifth end face 45, and a sixth end face 46. The first end face 51 and the second end face 52 are arranged opposite each other, and the third end face 53 and the fourth end face 54 are arranged opposite each other. The first end face 51 has a first protrusion 55, and the second end face 52 has a second concave portion 56. The first protrusion 55 and the second concave portion 56 match so that the first protrusion 55 can be inserted into the adjacent expansion portion 5. The second concave portion 56, the third end face 53 is provided with a third protrusion 57, the fourth end face 54 is provided with a fourth concave portion 58, the third protrusion 57 and the fourth concave portion 58 are matched so that the third protrusion 57 can be inserted into the fourth concave portion 58 of the adjacent expansion portion 5, the fifth end face 45 is provided with a fifth protrusion 47, the sixth end face 46 is provided with a sixth concave portion 48, the fifth protrusion 47 and the sixth concave portion 48 are matched so that the fifth protrusion 47 can be inserted into the sixth concave portion 48 of the adjacent expansion portion 5.

[0056] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this application can be achieved, and this is not limited herein.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly defined. Up, down, left, right, front, and back are relative orientations, and adjustments to these orientations are conventional technical means and fall within the scope of protection of this application.

[0058] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. Energy saving system door, characterized in that, The application relates to a fireproof door, which comprises a wood board layer (11), a structure layer (12), an expansion part (5), a liquid storage part (6) and a frame (4), the wood board layer (11) and the structure layer (12) are fixed to the frame (4), the liquid storage part (6) and the expansion part (5) are arranged between the wood board layer (11) and the structure layer (12), the liquid storage part (6) is provided with a first sealed cavity (60), the first sealed cavity (60) is provided with liquid fire retardant, the expansion part (5) has a certain expansion coefficient, so that the expansion part (5) can extrude the liquid storage part (6) after temperature rise, the liquid storage part (6) can be broken under pressure, so that the liquid fire retardant diffuses from the first sealed cavity (60) to the wood board layer (11), a sealing plate (13) is arranged between the wood board layer (11) and the expansion part (5), the liquid storage part (6) and the expansion part (5) are arranged between the sealing plate (13) and the structure layer (12), the expansion part (5) is closer to the wood board layer (11) than the liquid storage part (6), the expansion part (5) is provided with a through hole (50), the liquid storage part (6) is provided with a communication pipe (65), the communication pipe (65) passes through the through hole (50) and reaches the wood board layer (11), the wood board layer (11) is provided with a transverse flow guide groove (110) and a longitudinal flow guide hole (111), a sealing film (66) is arranged in the communication pipe (65), the sealing plate (13) is provided with a needle pipe (14), the needle pipe (14) is inserted into the communication pipe (65) and located in front of the sealing film (66), so that the sealing film (66) can be punctured by the needle pipe (14) when the sealing film (66) moves to contact the needle pipe (14). The frame (4) is connected by a plurality of broken bridge aluminum alloy profiles through angle codes (7), the frame (4) is externally provided with a door frame (3), the frame (4) is hinged to the door frame (3), the door frame (3) is internally provided with a daughter door leaf (2) and a mother door leaf (1), and the area of the mother door leaf (1) is larger than that of the daughter door leaf (2).

2. The energy saving system door of claim 1, wherein, The expansion part (5) is made of elastic material and is provided with a second sealed cavity (59), and the second sealed cavity (59) is internally provided with silicon oil.

3. The energy saving system door of claim 1, wherein, The daughter door leaf (2) is provided with a first glass layer (21) and a second glass layer (22), a third cavity (23) is arranged between the first glass layer (21) and the second glass layer (22), and the third cavity (23) is internally provided with liquid.

4. The energy saving system door of claim 2, wherein, The expansion part (5) and the liquid storage part (6) are provided with a plurality of modular designs, so that the expansion part (5) can be spliced with adjacent expansion parts (5), the liquid storage part (6) can be spliced with adjacent expansion parts (5), or the liquid storage part (6) can be spliced with adjacent liquid storage parts (6).

5. The energy saving system door of any one of claims 1-4, wherein, ​ 6. The energy saving system door of claim 5, wherein, The expansion part (5) is provided with a first end face (51), a second end face (52), a third end face (53) and a fourth end face (54), the first end face (51) and the second end face (52) are oppositely arranged, the third end face (53) and the fourth end face (54) are oppositely arranged, the first end face (51) is provided with a first protruding part (55), the second end face (52) is provided with a second concave part (56), the first protruding part (55) is matched with the second concave part (56) so that the first protruding part (55) can be inserted into the second concave part (56) of the adjacent expansion part (5), the third end face (53) is provided with a third protruding part (57), the fourth end face (54) is provided with a fourth concave part (58), the third protruding part (57) is matched with the fourth concave part (58) so that the third protruding part (57) can be inserted into the fourth concave part (58) of the adjacent expansion part (5).

7. The energy saving system door of claim 3, wherein, The volume of the first sealing cavity (60) is smaller than the volume of the second sealing cavity (59).

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