Heat insulation door assembly convenient to disassemble and assemble

By connecting the inner and outer panels with thermal insulation strips and designing the door frame, the problem of poor thermal insulation of steel entrance doors is solved, achieving efficient thermal insulation and convenient disassembly and assembly, and improving indoor temperature stability and environmental performance.

CN223937933UActive Publication Date: 2026-02-24WUYI HUBBLE IND & TRADE CO LTD
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Patent Information

Application Number
CN202520163330.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-02-24
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Existing steel entrance doors have poor heat insulation properties in areas with large seasonal temperature differences, resulting in unstable indoor temperatures and affecting comfort.

Method used

The door frame is designed with inner and outer panels connected by thermal break strips. The door frame is divided into inner and outer sections and thermal break strip holes are set at the connection points to reduce the metal contact area. Combined with glue-free connection technology, it is easy to disassemble and assemble.

Benefits of technology

It achieves efficient heat insulation, reduces indoor heat conduction, improves heat preservation and energy saving effect, and is convenient to install and maintain, with good environmental performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heat insulation door assembly convenient to disassemble and assemble. The heat insulation door assembly comprises a door leaf and a door frame. Each door leaf comprises an outer plate and an inner plate; a lower seal, a side seal and an upper seal are respectively fixed at the upper end, two side parts and the bottom end of the outer plate; the outer plate and the inner plate are connected at the sealing positions of the four sides through door leaf heat insulation strips; the door frame comprises an indoor part and an outdoor part, a connecting part is arranged between the indoor part and the outdoor part, and the connecting part protrudes inwards to form a groove in the outer side; a door frame heat insulation strip is clamped in the groove, and the two sides of the door frame heat insulation strip are tightly adhered to the indoor part and the outdoor part respectively; the inner and outer plate heat insulation strips are connected to avoid a metal contact surface with fast heat conduction, so that indoor heat conduction is effectively reduced, and the heat insulation and energy saving effects are excellent; the inner plate and the outer plate are inserted up and down, so that disassembly and assembly are convenient; the door frame heat insulation strip is matched with the heat insulation strip holes, the direct connection contact area of the indoor part and the outdoor part of the door frame body is reduced, and the heat conduction amount from the indoor part to the outdoor part through the door frame is effectively reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of insulation door technology, specifically relating to a convenient disassembly and assembly heat insulation door component. Background Technology

[0002] The entrance door is an important component of a building structure, consisting of the door leaf and the door frame, and plays a role in home security against theft. Door leaves are made of various materials depending on their intended use, including wooden doors, glass doors, steel doors, aluminum alloy doors, and so on.

[0003] The entrance doors used in homes are generally made of steel, which has the disadvantage of poor heat insulation. Especially in northern regions where there are large temperature differences between the four seasons, the indoor temperature will be lost quickly through the door leaf and frame with good heat conduction properties in winter, resulting in unstable indoor temperature and affecting comfort. Utility Model Content

[0004] This utility model provides a convenient assembly and disassembly of a heat-insulating door component. The inner and outer panels are connected by heat-insulating strips, avoiding the contact surface of metals with high heat conduction, effectively reducing indoor heat conduction, and providing excellent heat insulation and energy-saving effects. The inner and outer panels are connected by interlocking, making disassembly and assembly convenient. The design of the door frame heat-insulating strip with multiple heat-breaking strip holes reduces the direct contact area between the indoor and outdoor parts of the door frame body, effectively reducing the amount of heat conducted from the indoor to the outdoor through the door frame, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a convenient disassembly and assembly thermal insulation door assembly, including a door leaf and a door frame that is hinged to it;

[0006] Each door panel includes an outer panel and an inner panel;

[0007] The upper, two sides, and bottom of the outer plate are integrally formed or welded with a lower seal, a side seal, and an upper seal, respectively.

[0008] The outer panel and the inner panel are connected at the four sides by door insulation strips;

[0009] The door frame includes an indoor part and an outdoor part, and a connecting part is provided between the indoor part and the outdoor part. The connecting part protrudes inward and forms a groove on the outside. A door frame heat insulation strip is sandwiched in the groove, and the two sides of the door frame heat insulation strip are tightly bonded to the indoor part and the outdoor part, respectively.

[0010] Preferably, the lower seal is provided with a first bend portion facing upwards and the side seals on both sides are provided with an inward bend portion. The door panel heat insulation strip includes a first heat insulation strip fixed to the bottom end of the inner panel near the outer panel and on both sides. The first heat insulation strip is provided with a groove adapted to the first bend portion in the corresponding direction. It also includes a second heat insulation strip fixed to the upper end of the outer panel.

[0011] Preferably, the upper sealing opening is provided with a second bent portion facing downwards, and the upper part of the second heat insulation strip is provided with a groove that matches the second bent portion.

[0012] Preferably, a first leather strip is sandwiched between the outer panel and the outdoor portion; and a second leather strip is sandwiched between the inner panel and the indoor portion.

[0013] Preferably, the bottom end of the inner panel is wrapped with a first U-shaped retaining edge, and the top and sides are wrapped with a second U-shaped retaining edge. The first heat insulation strip has a groove that matches the first U-shaped retaining edge. The first U-shaped retaining edge and the second U-shaped retaining edge are both fixed to the inner panel with screws.

[0014] Preferably, an L-shaped upper cover plate is fixed to the upper seal by rivets.

[0015] Preferably, the connecting portion has multiple heat-insulating strip holes.

[0016] Preferably, the door frame insulation strip has a double-cavity insulation design.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The door leaf and frame are designed to be insulated and heat-preserving, achieving efficient heat insulation.

[0019] 2. The inner and outer panels are connected by thermal insulation strips to avoid contact between metal surfaces that conduct heat quickly, effectively reducing indoor heat conduction and providing excellent thermal insulation and energy-saving effects.

[0020] 3. The inner and outer panels are connected by interlocking, making disassembly and assembly convenient; the connection between the inner and outer panels adopts a glue-free connection process throughout, making installation and subsequent maintenance convenient and effectively ensuring environmental performance.

[0021] 4. The design of multiple thermal break holes reduces the direct contact area between the indoor and outdoor parts of the door frame, effectively reducing the amount of heat conducted from the indoor area to the outdoor area through the door frame.

[0022] 5. The double-cavity thermal insulation strip design strengthens the connection between the indoor and outdoor parts, while effectively blocking heat conduction from the indoor area to the outside through the door frame. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0024] Figure 2 for Figure 1 A magnified structural diagram at point A;

[0025] Figure 3 for Figure 1A magnified structural diagram at point B;

[0026] Figure 4 This is a top sectional view of the present invention.

[0027] Figure 5 This is a schematic diagram of the overall appearance structure of this utility model;

[0028] Figure 6 This is a schematic diagram of the second type of door leaf cross-section structure of this utility model;

[0029] Figure 7 for Figure 6 A magnified structural diagram at point C;

[0030] Figure 8 for Figure 6 A magnified structural diagram at point D;

[0031] Figure 9 This is a schematic diagram of the L-shaped upper cover plate structure of this utility model;

[0032] Figure 10 This is a cross-sectional view of the door frame and door frame heat insulation strip of this utility model.

[0033] Figure 11 This is a schematic diagram of the cross-sectional structure of the door frame of this utility model;

[0034] Figure 12 This is a schematic diagram of the door frame and thermal break strip hole structure of this utility model;

[0035] Figure 13 This is a schematic diagram of the cross-sectional structure of the door frame heat insulation strip of this utility model.

[0036] In the diagram: 1. Outer panel; 2. Inner panel; 3. Lower seal; 4. Side seal; 5. Upper seal; 6. Indoor section; 7. Outdoor section; 8. Connecting section; 9. Groove; 10. Door frame heat insulation strip; 11. First bend; 12. First heat insulation strip; 13. Second heat insulation strip; 14. Second bend; 15. First rubber strip; 16. Second rubber strip; 17. First U-shaped retaining edge; 18. Second U-shaped retaining edge; 19. L-shaped upper cover plate; 20. Heat insulation strip hole. Detailed Implementation

[0037] 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.

[0038] Please see Figures 1-5 , Figure 10 This utility model provides a convenient assembly and disassembly of a heat-insulating door component, including a door leaf and a door frame that is hinged to it.

[0039] Each door leaf includes an outer panel 1 and an inner panel 2;

[0040] The outer panel 1 has a bottom seal 3, a side seal 4 and a top seal 5 integrally formed or welded to its upper end, two sides and bottom end respectively;

[0041] The outer panel 1 and the inner panel 2 are connected at the four sides by door leaf heat insulation strips; each seal and heat insulation strip are inserted together, and the heat insulation strip is set between the outer panel 1 and the inner panel 2 to reduce the heat conduction from the inner panel 2 to the outer panel 1, thereby achieving a heat preservation effect.

[0042] The door frame includes an indoor portion 6 and an outdoor portion 7. A connecting portion 8 is provided between the indoor portion 6 and the outdoor portion 7. The connecting portion 8 protrudes inward and forms a groove 9 on the outer side. A door frame heat insulation strip 10 is sandwiched in the groove 9. The two sides of the door frame heat insulation strip 10 are tightly bonded to the indoor portion 6 and the outdoor portion 7, respectively. The door frame heat insulation strip 10 is tightly bonded to the connecting portion 8, which strengthens the connection between the indoor portion 6 and the outdoor portion 7, and effectively blocks the heat conduction from the indoor to the outdoor through the door frame.

[0043] Please see Figure 2 , Figure 3 As a further embodiment, the lower sealing 3 is provided with a first bending portion 11 facing upwards and the side sealing 4 on both sides inwards. The door leaf heat insulation strip includes a first heat insulation strip 12 fixed to the bottom end of the inner panel 2 near the outer panel 1 and on both sides. The first heat insulation strip 12 is provided with a groove adapted to the first bending portion 11 in the corresponding direction. It also includes a second heat insulation strip 13 fixed to the upper end of the outer panel 1. In this embodiment, when assembling the first type of door leaf, the outer panel assembly and the inner panel assembly can be assembled separately. When assembling the outer panel assembly, the lower sealing 3, side sealing 4, and upper sealing 5 are integrally formed or welded to the outer panel 1. The second bending portion 11 of the upper sealing 5 is... The second heat insulation strip 13 is inserted into the fold 14 from bottom to top and fixed with screws. When assembling the inner panel assembly, the first heat insulation strip 12 is fastened to the bottom and sides of the inner panel 2 with screws. Then, the first heat insulation strip 12 on both sides of the inner panel assembly is inserted from top to bottom into the first bend 11 of the sealing on both sides of the outer panel 1, and the sides of the outer panel 1 and the inner panel 2 are fastened together. After the inner panel assembly is pushed into place, the first heat insulation strip 12 at the bottom is locked in the first bend 11 at the bottom, and the top of the inner panel 2 is tightly sealed with the second heat insulation strip 13 at the top of the outer panel 1, so that the inner panel 2 can be quickly installed. Similarly, the inner panel 2 can be disassembled and replaced.

[0044] Please see Figure 3As a further embodiment, the upper sealing opening 5 is provided with a downwardly bent second bending portion 14, and the upper part of the second heat insulation strip 13 is provided with a slot that matches the second bending portion 14; in this embodiment, the downwardly bent second bending portion 14 of the upper sealing opening 5 can be inserted and limited with the second heat insulation strip 13, and then tightly connected by screws.

[0045] Please see Figure 2 As a further embodiment, a first strip 15 is sandwiched between the outer panel 1 and the outdoor portion 7; a second strip 16 is sandwiched between the inner panel 2 and the indoor portion 6; in this embodiment, by setting strips in the gaps between the inner and outer panels of the door leaf and the inner and outer portions of the door frame, the heat insulation and sealing effect is further improved.

[0046] Please see Figures 6-8 As a further embodiment, the bottom end of the inner panel 2 is wrapped with a first U-shaped retaining edge 17, and the top and sides are wrapped with second U-shaped retaining edges 18. The first heat insulation strip 12 has a groove adapted to the first U-shaped retaining edge 17. The first U-shaped retaining edge 17 and the second U-shaped retaining edge 18 are both fixed to the inner panel 2 with screws. In this embodiment, this is a second type of door leaf. During assembly, the outer panel assembly and the inner panel assembly are assembled separately. When assembling the outer panel assembly, the first heat insulation strip 12 is fastened to the bottom of the outer panel, and then the first U-shaped retaining edge 17 is installed. When assembling the inner panel assembly, the left side of the inner panel is... The second thermal insulation strip 13 on the upper right side is fastened to the second U-shaped clip 18. The second thermal insulation strip 13 with the second U-shaped clip 18 fastened is placed on the edge of the inner panel 2 and fixed with screws. The inner panel assembly is pushed from top to bottom into the side sealing bend of the outer panel 1 along the connecting groove of the second thermal insulation strip 13 until the bottom end of the inner panel 2 is fastened into the first U-shaped clip 17. The outer panel 1 and the inner panel 2 are fastened together on the left and right sides. The first U-shaped clip is fastened to the inner panel 2 with screws to achieve quick assembly and disassembly and to connect the thermal insulation strips of the inner and outer panels. This avoids the contact surface of metal with fast heat conduction, effectively reduces indoor heat conduction, and has excellent heat preservation and energy saving effect.

[0047] Please see Figure 9 As a further embodiment, an L-shaped upper cover plate 19 is fixed to the upper seal 5 by rivets; in this embodiment, the L-shaped upper cover plate 19 is snapped into the second heat insulation strip 13 and fastened with rivets to achieve stable fixation of the structure.

[0048] Please see Figures 10-12 As a further embodiment, the connecting part 8 is provided with a plurality of heat-insulating strip holes 20; in this embodiment, the design of providing a plurality of heat-insulating strip holes 20 reduces the direct contact area between the indoor part 6 and the outdoor part 7 of the door frame body, effectively reducing the amount of heat conduction from the indoor to the outdoor through the door frame.

[0049] Please see Figure 13As a further embodiment, the door frame heat insulation strip 10 has a double-cavity heat insulation design; in this embodiment, the double-cavity heat insulation design enhances the heat insulation effect.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A convenient disassembly and assembly thermal insulation door component, characterized in that, Includes the door leaf and the door frame that is fitted with its hinges; Each door leaf includes an outer panel (1) and an inner panel (2); The outer panel (1) has a bottom seal (3), a side seal (4) and a top seal (5) integrally formed or welded to its upper end, two sides and bottom end. The outer panel (1) and the inner panel (2) are connected at the four sides by door insulation strips; The door frame includes an indoor part (6) and an outdoor part (7). A connecting part (8) is provided between the indoor part (6) and the outdoor part (7). The connecting part (8) protrudes inward and forms a groove (9) on the outside. A door frame heat insulation strip (10) is sandwiched in the groove (9). The two sides of the door frame heat insulation strip (10) are tightly bonded to the indoor part (6) and the outdoor part (7) respectively.

2. The easily detachable and assembled heat-insulating door assembly according to claim 1, characterized in that, The lower sealing opening (3) is provided with a first bending portion (11) facing upwards and the side sealing openings (4) on both sides are provided with an inward bending portion (11). The door leaf heat insulation strip includes a first heat insulation strip (12) fixed on the bottom end of the inner panel (2) near the outer panel (1) and on both sides. The first heat insulation strip (12) is provided with a groove adapted to the first bending portion (11) in the corresponding direction. It also includes a second heat insulation strip (13) fixed on the upper end of the outer panel (1).

3. The easily detachable and assembled heat-insulating door assembly according to claim 2, characterized in that, The upper seal (5) is provided with a bent second bend (14) facing downwards, and the upper part of the second heat insulation strip (13) is provided with a slot that matches the second bend (14).

4. The easily detachable and assembleable heat-insulating door assembly according to claim 3, characterized in that, A first leather strip (15) is sandwiched between the outer panel (1) and the outdoor part (7); a second leather strip (16) is sandwiched between the inner panel (2) and the indoor part (6).

5. A convenient disassembly and assembly heat-insulating door assembly according to claim 2, characterized in that, The bottom of the inner plate (2) is wrapped with a first U-shaped clip (17), and the top and sides are wrapped with a second U-shaped clip (18). The first heat insulation strip (12) has a groove that matches the first U-shaped clip (17). The first U-shaped clip (17) and the second U-shaped clip (18) are both fixed to the inner plate (2) by screws.

6. A convenient disassembly and assembly heat-insulating door assembly according to claim 5, characterized in that, An L-shaped top cover plate (19) is fixed to the upper seal (5) by rivets.

7. A convenient disassembly and assembly thermal insulation door assembly according to claim 1, characterized in that, The connecting part (8) has multiple heat insulation strip holes (20).

8. A convenient disassembly and assembly thermal insulation door assembly according to claim 1, characterized in that, The door frame insulation strip (10) is a double-cavity insulation design.