Passive thermal insulation door

Abstract

The utility model discloses a passive thermal insulation door, which relates to the technical field of thermal insulation doors and comprises a first door plate component, a second door plate component is arranged on one side of the first door plate component, and the first door plate component and the second door plate component are wrapped by a door frame. The first door plate assembly and the second door plate assembly each comprise a heat preservation door plate, a filling cavity is formed in each heat preservation door plate, each filling cavity is filled with a filling material, a maintenance opening is formed in the surface of one side of each heat preservation door plate, and the maintenance openings communicate with the filling cavities. According to the scheme, the problems that most of filling materials in an existing passive heat preservation door are honeycomb paper and honeycomb aluminum, gaps are prone to being formed between the filling materials and the inner wall of the heat preservation door, filling is insufficient, the heat preservation and sound insulation effects are poor, a fully-sealed heat preservation door is not prone to replacing the filling materials, and the heat preservation and sound insulation effects are poor are solved. And the flexibility is poor.

Description

Technical Field

[0001] This utility model relates to the field of heat-insulating door technology, specifically a passive heat-insulating door. Background Technology

[0002] Passive insulation doors are a high-performance door and window system that not only meets stringent energy consumption standards, but also takes into account requirements for air tightness, water tightness, indoor temperature regulation, building appearance, and comfort.

[0003] For example, the Chinese authorized patent CN220319417U (A Sealed Insulated Door Structure) includes an insulated door and door frames on both sides. A guide plate is located at the center of the top of the insulated door, with rotating shafts at both ends of the guide plate and rollers rotating at both ends of the shafts. It also includes a top slide rail, positioned above the insulated door. The rollers cooperate with the top slide rail to push and pull the insulated door. The top slide rail includes two guide rails with a gap between them. The guide plate can extend into the gap, and the rollers on both sides cooperate with the two guide rails respectively. The guide rails include a lower rail and two upper rails. Each upper rail has a transition slope on the closed side of the insulated door that connects to the lower rail. The length of the upper rail is equal to the distance between the two rotating shafts. One upper rail is located between the two rotating shafts when the insulated door is closed, and the other upper rail is located on the other side of the rotating shafts away from the closed side of the insulated door. This utility model, through the above structure, can ensure stable opening of the insulated door and improve its sealing performance.

[0004] However, the filling materials inside most existing passive thermal insulation doors are honeycomb paper and honeycomb aluminum, which easily have gaps with the inner wall of the door, resulting in insufficient filling and poor thermal insulation and sound insulation effects. In addition, the fully sealed thermal insulation doors are not easy to replace the filling materials, which is not flexible. Therefore, they do not meet the current needs. To address this, we have proposed a passive thermal insulation door. Utility Model Content

[0005] The purpose of this utility model is to provide a passive thermal insulation door to solve the problems mentioned in the background art, which are that the filling materials inside the existing passive thermal insulation doors are mostly honeycomb paper and honeycomb aluminum, which are prone to gaps with the inner wall of the thermal insulation door, resulting in insufficient filling, poor thermal insulation and sound insulation effect, and the fully sealed thermal insulation door makes it difficult to replace the filling material, resulting in poor flexibility.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a passive heat-insulating door, comprising: a first door panel assembly, a second door panel assembly disposed on one side of the first door panel assembly, the first door panel assembly and the second door panel assembly being wrapped by a door frame, both the first door panel assembly and the second door panel assembly including a heat-insulating door panel, the heat-insulating door panel having a filling cavity inside, the filling cavity being filled with a filling material, and a maintenance opening being disposed on one side surface of the heat-insulating door panel, the maintenance opening being interconnected with the filling cavity.

[0007] Preferably, the first door panel assembly and the second door panel assembly further include an injection port, which is located on the upper surface of the insulated door panel and communicates with the filling cavity.

[0008] Preferably, the filler material is polyurethane foam, which expands after a chemical reaction with the addition of a catalyst, and is then cured by heating to complete the filling.

[0009] Preferably, the surface of the maintenance opening is provided with a first anti-outward protrusion groove, a protective plate is inserted into the first anti-outward protrusion groove, a sealing plate is provided on the rear surface of the protective plate, and the sealing plate is inserted into the maintenance opening. The corner of the protective plate is fixed to the heat preservation door panel by fixing screws.

[0010] Preferably, the top surface of the injection port opening is provided with a second anti-outward protrusion groove, a sealing cap is inserted into the inside of the injection port, and the top of the sealing cap is located in the second anti-outward protrusion groove. The injection port and the second anti-outward protrusion groove form a T-shaped shape, and the sealing cap is also T-shaped.

[0011] Preferably, the side surface of the insulated door panel of the first door panel assembly is provided with a door lock mounting groove, and a door lock is installed inside the door lock mounting groove, and the side surface of the second door panel assembly is provided with a door lock connecting groove for door lock connection.

[0012] Preferably, the other side of the insulated door panels of the first door panel assembly and the second door panel assembly are rotatably connected to the door frame via hinges.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model adds filling material inside the filling cavity and sets an injection port on the upper surface of the heat-insulating door panel. The sealing cover is opened to expose the injection port. The filling material inside the filling cavity is polyurethane foam. With the addition of a catalyst, the liquid is injected into the filling cavity under high pressure through the injection port. After chemical reaction, it expands and is then heated and cured to complete the filling. Then the sealing cover is closed to seal the injection port. Through polyurethane foam, it can fill all corners of the filling cavity to achieve full filling, thereby improving the heat insulation and sound insulation effect. This solves the problem that most of the filling materials inside the existing passive heat-insulating doors are honeycomb paper and honeycomb aluminum, which are prone to gaps with the inner wall of the heat-insulating door, resulting in insufficient filling and poor heat insulation and sound insulation effect.

[0015] (2) By setting a maintenance opening on one side of the insulation door panel, which is connected to the filling cavity, when it is necessary to clean and refill the filling material, it is only necessary to open the protective plate at the maintenance opening to expose the maintenance opening, use a cutting cleaning tool to cut the filling material into sections at the maintenance opening, and then take it out. This eliminates the need to replace the entire insulation door panel, improves the flexibility and convenience of replacement and maintenance, and solves the problem of existing fully sealed insulation doors that are not easy to replace the filling material and have poor flexibility. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the first door panel assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the heat-insulating door panel of this utility model;

[0019] Figure 4 This is a schematic diagram of the rear view structure of the protective plate of this utility model;

[0020] In the diagram: 1. First door panel assembly; 2. Door frame; 3. Second door panel assembly; 4. Hinge; 5. Insulated door panel; 6. Injection port; 7. Sealing cover; 8. Door lock; 9. Maintenance opening; 10. Protective plate; 11. Fixing screw; 12. Door lock mounting groove; 13. Filling cavity; 14. Filling material; 15. Sealing plate; 16. First anti-protrusion groove; 17. Second anti-protrusion groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4This utility model provides an embodiment of a passive heat-insulating door, comprising: a first door panel assembly 1, a second door panel assembly 3 disposed on one side of the first door panel assembly 1, the first door panel assembly 1 and the second door panel assembly 3 being enclosed by a door frame 2, both the first door panel assembly 1 and the second door panel assembly 3 including a heat-insulating door panel 5, the heat-insulating door panel 5 having a filling cavity 13 inside, the filling cavity 13 being filled with a filling material 14, a maintenance opening 9 being disposed on one side surface of the heat-insulating door panel 5, and the maintenance opening 9 communicating with the filling cavity 13, the first door panel assembly 1 and the second door panel assembly 3 also including an injection port 6, the injection port 6 being located on the upper surface of the heat-insulating door panel 5, and the injection port 6 communicating with the filling cavity 13, the filling material 14 being polyurethane foam, which expands after a chemical reaction with the addition of a catalyst, and is solidified by heating. After the filling is completed, the sealing cap 7 is opened to expose the injection port 6. The filling material 14 inside the filling cavity 13 is polyurethane foam. With the addition of a catalyst, the liquid is injected into the filling cavity 13 under high pressure through the injection port 6. After the chemical reaction, it expands and is then heated and cured to complete the filling. Then the sealing cap 7 is closed to seal the injection port 6. The top surface of the injection port 6 opening is provided with a second anti-protrusion groove 17. The sealing cap 7 is inserted into the inside of the injection port 6, and the top of the sealing cap 7 is located in the second anti-protrusion groove 17. The injection port 6 and the second anti-protrusion groove 17 form a T-shape, and the sealing cap 7 is also T-shaped, thereby preventing the sealing cap 7 from protruding and affecting the opening and closing of the insulation door panel 5. Through polyurethane foaming, it can fill all corners of the filling cavity 13 to achieve full filling, thereby improving the thermal insulation and sound insulation effect.

[0023] Please see Figure 2 , 3 4. A first anti-protrusion groove 16 is provided on the surface of the maintenance opening 9. A protective plate 10 is inserted into the first anti-protrusion groove 16. A sealing plate 15 is provided on the rear surface of the protective plate 10 and is inserted into the maintenance opening 9 to improve the stability and sealing of the connection. The protective plate 10 is located inside the first anti-protrusion groove 16 to prevent protrusion from affecting the opening and closing of the insulation door panel 5. The corner of the protective plate 10 is fixed to the insulation door panel 5 by fixing screws 11. When it is necessary to clean and refill the filling material 14, simply open the protective plate 10 at the maintenance opening 9 to expose the maintenance opening 9. Use a cutting cleaning tool to cut the filling material 14 into sections in the maintenance opening 9 and then remove it. After removal, cover the protective plate 10 and fix it with fixing screws 11. Then refill the filling material 14 from the injection port 6. It is not necessary to replace the entire insulation door panel 5, which improves the flexibility and convenience of replacement and maintenance.

[0024] Please see Figure 1 , 23. The side surface of the insulated door panel 5 of the first door panel assembly 1 is provided with a door lock mounting groove 12, and a door lock 8 is installed inside the door lock mounting groove 12. The side surface of the second door panel assembly 3 is provided with a door lock connecting groove (not shown in the figure) for connecting the door lock 8. The other side of the insulated door panels 5 of the first door panel assembly 1 and the second door panel assembly 3 are rotatably connected to the door frame 2 through a hinge 4. The first door panel assembly 1 and the second door panel assembly 3 can be opened and closed by rotating them. When closed, the switch end of the door lock 8 is inserted into the door lock connecting groove (not shown in the figure) to close the first door panel assembly 1 and the second door panel assembly 3. This is the existing door lock locking method and is the existing technology.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A passive heat-insulating door, comprising a first door panel assembly (1), a second door panel assembly (3) disposed on one side of the first door panel assembly (1), the first door panel assembly (1) and the second door panel assembly (3) being enclosed by a door frame (2), characterized in that: The first door panel assembly (1) and the second door panel assembly (3) both include an insulated door panel (5). The insulated door panel (5) has a filling cavity (13) inside, and the filling cavity (13) is filled with filling material (14). A maintenance opening (9) is provided on one side surface of the insulated door panel (5), and the maintenance opening (9) communicates with the filling cavity (13).

2. A passive heat-insulating door according to claim 1, characterized in that: The first door panel assembly (1) and the second door panel assembly (3) further include an injection port (6), and the injection port (6) is located on the upper surface of the heat-insulating door panel (5), and the injection port (6) communicates with the filling cavity (13).

3. A passive heat-insulating door according to claim 1, characterized in that: The filler material (14) is polyurethane foam, which expands after chemical reaction with the addition of a catalyst, and is filled by heating and curing.

4. A passive heat-insulating door according to claim 1, characterized in that: The surface of the opening of the maintenance opening (9) is provided with a first anti-outward protrusion groove (16), and a protective plate (10) is inserted into the first anti-outward protrusion groove (16). A sealing plate (15) is provided on the rear surface of the protective plate (10), and the sealing plate (15) is inserted into the maintenance opening (9). The corner of the protective plate (10) is fixed to the heat insulation door panel (5) by fixing screws (11).

5. A passive heat-insulating door according to claim 2, characterized in that: The top surface of the injection port (6) is provided with a second anti-outward protrusion groove (17). A sealing cap (7) is inserted into the inside of the injection port (6), and the top of the sealing cap (7) is located in the second anti-outward protrusion groove (17). The injection port (6) and the second anti-outward protrusion groove (17) form a T-shape, and the sealing cap (7) is also T-shaped.

6. A passive heat-insulating door according to claim 1, characterized in that: The side surface of the heat-insulating door panel (5) of the first door panel assembly (1) is provided with a door lock mounting groove (12), and a door lock (8) is installed inside the door lock mounting groove (12). The side surface of the second door panel assembly (3) is provided with a door lock connecting groove for connecting the door lock (8).

7. A passive heat-insulating door according to claim 1, characterized in that: The insulated door panels (5) of the first door panel assembly (1) and the second door panel assembly (3) are rotatably connected to the door frame (2) via hinges (4) on the other side.

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