Heat insulation door plate and heat insulation door

Abstract

The utility model relates to the technical field of door bodies, in particular to a heat insulation door plate and a heat insulation door. The heat insulation door plate comprises a door plate body, a first outer plate, a heat insulation plate, a door core plate, a fireproof plate and a second outer plate are sequentially stacked on the door plate body, the fireproof plate is arranged on one side of the second outer plate, the door core plate is arranged on the side, away from the second outer plate, of the fireproof plate, and the heat insulation plate is arranged on the side, away from the fireproof plate, of the door core plate. The first outer plate is arranged on the side, away from the door core plate, of the heat insulation plate. The heat insulation plate is a ceramic heat insulation plate, the door core plate is filled with an extruded sheet, the edge of the first outer plate is wrapped with a first high-temperature-resistant adhesive tape, and the edge of the second outer plate is wrapped with a second high-temperature-resistant adhesive tape. The thermal insulation door plate has the overall thermal insulation performance and the overall fireproof safety, the thermal insulation performance and the fireproof performance are both considered, the thermal insulation performance and the fireproof performance of the thermal insulation door plate can meet the building standard requirements, and the safety performance of the thermal insulation door body can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of door bodies, in particular to an insulation door panel and an insulation door. Background Art

[0002] At present, the standard requirements for aluminum-wood fireproof entrance doors do not have high requirements for thermal insulation performance, and the thermal insulation coefficient K value is above 2.0, or even higher, or no attention is paid. However, with the development of society and the improvement of living standards, the requirements and quality of living environment are getting higher and higher, and energy saving, environmental protection, green and low carbon have become the mainstream. Therefore, the requirements for thermal insulation performance of entrance doors in China have become more and more important, especially in the cold and severe cold areas in the north, the thermal insulation performance of entrance doors has been paid more and more attention.

[0003] However, the existing entrance doors cannot take into account both thermal insulation performance and fire resistance performance, resulting in the entrance doors being unable to simultaneously meet the requirements of thermal insulation performance and fire resistance performance in building requirements. Utility Model Content

[0004] In order to solve the defects of the prior art, the utility model provides an insulation door panel and an insulation door. The insulation door panel has overall thermal insulation performance and overall fire safety, and achieves a balance between thermal insulation performance and fire safety. Its thermal insulation performance and fire safety performance can meet the requirements of building standards and can effectively ensure the safety performance of the insulation door body.

[0005] In order to solve the above technical problems, the utility model provides an insulation door panel, comprising:

[0006] A door panel body, wherein the door panel body is stacked with a first outer panel, an insulation board, a door core panel, a fireproof board and a second outer panel in sequence, the fireproof board is arranged on one side of the second outer panel, the door core panel is arranged on the side of the fireproof board away from the second outer panel, the insulation board is arranged on the side of the door core panel away from the fireproof board, and the first outer panel is arranged on the side of the insulation board away from the door core panel; the insulation board is a ceramic insulation board, and the door core panel is filled with an extruded board; the edge of the first outer panel is wrapped with a first high-temperature resistant tape, and the edge of the second outer panel is wrapped with a second high-temperature resistant tape.

[0007] Wherein, the thickness of the heat insulation board is 7mm-9mm, and the thickness of the extruded board is 25mm-30mm.

[0008] The first outer panel is a cast aluminum panel, the second outer panel is a medium-fiber wood panel, and a heat-insulating veneer is attached to the side of the second outer panel facing away from the door core panel, and the thickness of the heat-insulating veneer is 0.5 mm-1 mm.

[0009] Wherein, the door core panel includes a door core and two galvanized door panels, one of the galvanized door panels is arranged on the side of the door core facing the first outer panel, and the other galvanized door panel is arranged on the side of the door core facing the second outer panel, the door core is arranged between the two galvanized door panels, and the extruded board is filled between the door core and the two galvanized door panels.

[0010] Wherein, the door panel body further comprises:

[0011] The door lock is arranged on the door panel body. A locking extruded plate is arranged in the door core. The locking extruded plate is aligned with the door lock. The locking extruded plate is used to fix the door lock to the door core.

[0012] Wherein, the door panel body is provided with two edges, and the two edges are provided at two opposite edges of the door panel body in a one-to-one correspondence;

[0013] The binding edge is formed with a first groove and a second groove, the opening of the first groove and the opening of the second groove face the door panel body, the first outer panel and the heat insulation panel are clamped in the first groove, and the fireproof panel and the second outer panel are clamped in the second groove; the first outer panel is abutted against the binding edge through the first high temperature resistant adhesive tape, and the second outer panel is abutted against the binding edge through the second high temperature resistant adhesive tape;

[0014] The side walls of the hemming are sprayed with heat-insulating powder, wherein the thickness of the heat-insulating powder is greater than or equal to 70 μm.

[0015] Among them, a first avoidance opening is provided on the edge of the first outer plate facing the first groove, and the first outer plate is inserted into the first groove through the first avoidance opening; a second avoidance opening is provided on the edge of the second outer plate facing the second groove, and the second outer plate is inserted into the first groove through the second avoidance opening.

[0016] Wherein, the door panel body further comprises:

[0017] A first sealing member, the edge further forms a third groove, the third groove is located between the first groove and the second groove, and the opening of the third groove is away from the door panel body, the third groove is provided with a first clamping column, and the first sealing member is fixed to the third groove through the first clamping column;

[0018] The second sealing member, wherein one of the edges is further formed with a fourth groove, the opening of the fourth groove is perpendicular to the opening of the third groove, the fourth groove is provided with a second clamping column, and the second sealing member is fixed to the fourth groove through the second clamping column.

[0019] Wherein, a fireproofing member is arranged on the side of the edging facing the door core board, and the width of the fireproofing member is 5mm-8mm.

[0020] Correspondingly, the utility model further provides an insulation door, comprising a door frame and any one of the insulation door panels described above, wherein one edge of the insulation door panel is rotatably connected to the door frame, the door frame is provided with a mounting groove, the opening of the mounting groove faces the second outer panel, a third sealing member is installed in the mounting groove, and the other edge of the insulation door panel is suitable for abutting through the third sealing member;

[0021] A side of the door frame facing the door panel body and a side of the door frame away from the door panel body are both sprayed with heat insulation powder, wherein the thickness of the heat insulation powder is greater than or equal to 70 μm.

[0022] The implementation of this utility model has the following beneficial effects:

[0023] According to the heat-insulating door panel provided by the embodiment of the utility model, the first outer panel can face the outdoor environment, and the second outer panel can face the indoor environment. By utilizing the heat-insulating properties of the ceramic heat-insulating board and the extruded board, the outdoor environment cannot exchange heat with the indoor environment, and the heat transfer path between the outdoor environment and the indoor environment is effectively blocked. At the same time, by utilizing the heat-insulating properties of the two high-temperature resistant tapes, the heat transfer between the edge of the first outer panel and the outdoor environment is further blocked, and the heat transfer between the edge of the second outer panel and the indoor environment is blocked, thereby improving the overall heat-insulating effect of the door panel body, achieving the improvement of the overall heat-insulating and heat-preserving properties of the door panel body, ensuring that the heat-insulating door panel has the characteristics of low thermal conductivity, and ensuring that the heat-insulating properties of the heat-insulating door panel meet the building insulation requirements in cold areas.

[0024] By setting the fireproof board between the door core board and the second outer board, and utilizing the fireproof and flame-retardant properties of the fireproof board and the extruded board, the overall fire safety of the door panel body is improved, so that the fireproof performance of the insulation door panel can meet the standard requirements.

[0025] Furthermore, the thermal insulation door panel provided in this embodiment can have overall thermal insulation performance and overall fire safety, achieving a balance between thermal insulation performance and fire resistance performance. Its thermal insulation performance and fire resistance performance can meet the requirements of building standards and can effectively ensure the safety performance of the thermal insulation door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the heat-insulating door of the utility model;

[0027] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 3It is a schematic diagram of the connection structure between the heat insulating member and the first outer panel or the second outer panel of the utility model;

[0029] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0030] Figure 5 It is a structural schematic diagram of one of the hemming of the utility model;

[0031] Figure 6 It is a structural schematic diagram of another hemming of the utility model;

[0032] Figure 7 It is a structural schematic diagram of a door frame of the utility model;

[0033] Figure 8 It is a structural schematic diagram of the inner skeleton of the utility model. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0035] The utility model provides an insulating door panel, which has overall thermal insulation performance and overall fire safety, and achieves a balance between thermal insulation performance and fire safety performance. Its thermal insulation performance and fire safety performance can meet the requirements of building standards and can effectively ensure the safety performance of the insulating door body.

[0036] In one embodiment of the present invention, Figures 1 to 8 As shown, the heat-insulating door panel includes a door panel body 1, which is stacked with a first outer panel 11, a heat-insulating panel 12, a door core panel 13, a fire-proof panel 14 and a second outer panel 15 in sequence. The fire-proof panel 14 is arranged on one side of the second outer panel 15, the door core panel 13 is arranged on the side of the fire-proof panel 14 away from the second outer panel 15, the heat-insulating panel 12 is arranged on the side of the door core panel 13 away from the fire-proof panel 14, and the first outer panel 11 is arranged on the side of the heat-insulating panel 12 away from the door core panel 13, that is, the fire-proof panel 14 is located between the second outer panel 15 and the door core panel 13, and the heat-insulating panel 12 is located between the first outer panel 11 and the door core panel 13. The heat-insulating panel 12 is a ceramic heat-insulating panel 12, the door core panel 13 is filled with an extruded board, the edge of the first outer panel 11 is wrapped with a first high-temperature resistant tape 111, and the edge of the second outer panel 15 is wrapped with a second high-temperature resistant tape 151.

[0037] According to the heat-insulating door panel provided in the embodiment of the utility model, the first outer panel 11 can face the outdoor environment, and the second outer panel 15 can face the indoor environment. By utilizing the heat-insulating properties of the ceramic heat-insulating board 12 and the extruded board, the outdoor environment cannot exchange heat with the indoor environment, and the heat transfer path between the outdoor environment and the indoor environment is effectively blocked. At the same time, by utilizing the heat-insulating properties of the two high-temperature resistant tapes, the heat transfer between the edge of the first outer panel 11 and the outdoor environment is further blocked, and the heat transfer between the edge of the second outer panel 15 and the indoor environment is blocked, thereby improving the overall heat-insulating effect of the door panel body 1, achieving the improvement of the overall heat-insulating and heat-preserving properties of the door panel body 1, ensuring that the heat-insulating door panel has the characteristics of low thermal conductivity, and ensuring that the heat-insulating properties of the heat-insulating door panel meet the building insulation requirements in cold areas.

[0038] By arranging the fireproof board 14 between the door core board 13 and the second outer board 15, the fireproof and flame-retardant properties of the fireproof board 14 and the extruded board are utilized to improve the overall fire safety of the door panel body 1, so that the fireproof performance of the insulation door panel can meet the standard requirements.

[0039] Furthermore, the thermal insulation door panel provided in this embodiment can have overall thermal insulation performance and overall fire safety, achieving a balance between thermal insulation performance and fire resistance performance. Its thermal insulation performance and fire resistance performance can meet the requirements of building standards and can effectively ensure the safety performance of the thermal insulation door body.

[0040] Preferably, the fireproof board 14 is a light calcium fireproof board 14, and the thickness of the fireproof board 14 is 3 mm.

[0041] The thickness of the heat insulation board 12 is 7 mm to 9 mm, and the thickness of the extruded board is 25 mm to 30 mm. Preferably, the thickness of the heat insulation board 12 is 8 mm, and the thickness of the extruded board is 27 mm, so as to utilize the thermal resistance provided by the heat insulation board 12 and the extruded board to block the heat transfer path between the outdoor environment and the heat insulation door panel, increase the heat transfer distance, thereby ensuring the heat insulation function of the heat insulation door panel and ensuring that the heat transfer coefficient of the heat insulation door can be maintained at 1.8-2.0.

[0042] Among them, the first outer plate 11 is a cast aluminum plate, the second outer plate 15 is a medium fiber wood board, and the side of the second outer plate 15 facing away from the door core plate 13 is affixed with a heat-insulating veneer (not shown in the figure), and the thickness of the heat-insulating veneer is 0.5mm-1mm. Preferably, the thickness of the heat-insulating veneer is 0.5mm, so as to increase the thickness of the second outer plate 15 by using the heat-insulating veneer, increase the thermal resistance between the indoor environment and the door panel body 1, extend the heat transfer distance between the indoor environment and the door panel body 1, and then reduce the heat absorption of the second outer plate 15 to the indoor environment, so as to reduce the energy consumed by the indoor environment to maintain the indoor temperature, and achieve energy-saving and low-carbon effects.

[0043] It should be noted here that the heat-insulating veneer is preferably natural straight-grained Sapele veneer to enhance the aesthetics, practicality and durability of the door panel body 1 facing the indoor side.

[0044] In the embodiment of the present utility model, Figure 1 and Figure 2 As shown, the door core board 13 includes a door core 131 and two galvanized door panels 132, one of which is arranged on the side of the door core 131 facing the first outer panel 11, and the other is arranged on the side of the door core 131 facing the second outer panel 15, so as to enhance the overall strength of the door core board 13, so that the door core board 13 can withstand greater external force and pressure, and ensure the structural stability of the door core board 13. In this embodiment, the thickness of the galvanized door panel 132 is 0.8 mm.

[0045] The door core 131 is arranged between two galvanized door panels 132, and the extruded board is filled between the door core 131 and the two galvanized door panels 132, so as to utilize the heat insulation performance and fire retardant performance of the extruded board, so that the heat insulation performance and fire retardant performance of the heat insulation door panel can take into account both the heat insulation performance and the fire retardant performance, and ensure that the heat insulation performance and fire retardant performance of the heat insulation door panel can meet the requirements of building standards.

[0046] Furthermore, if Figure 1 and Figure 8 As shown, the door panel body 1 also includes a door lock 16, and the door lock 16 is arranged on the door panel body 1. A locking extruded plate 161 is arranged in the door core 131, and the locking extruded plate 161 is aligned with the door lock 16. The locking extruded plate 161 is used to fix the door lock 16 to the door core 131. The locking extruded plate 161 provides a stable supporting structure for the door lock 16 to ensure the installation stability of the door lock 16 in the door core 131. At the same time, the locking extruded plate 161 also has heat insulation performance and fire retardant performance, thereby effectively ensuring that the door panel body 1 can also be fireproof and heat-insulated at the fixed position of the door lock 16, further ensuring the heat insulation performance and fire retardant performance of the door panel body 1.

[0047] In the embodiment of the present utility model, Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the door panel body 1 is provided with two edgings 17, and the two edgings 17 are arranged one by one at two opposite edges of the door panel body 1. Specifically, the door panel body 1 is provided with a rotation axis, one of the edgings 17 is located at the edge of the door panel body 1 away from the rotation axis, and the other edging 17 is located at the edge of the door panel body 1 close to the rotation axis.

[0048] The edging 17 is formed with a first groove 171 and a second groove 172, the opening of the first groove 171 and the opening of the second groove 172 face the door panel body 1, the first outer panel 11 and the heat insulation panel 12 are clamped in the first groove 171, the fireproof panel 14 and the second outer panel 15 are clamped in the second groove 172, the first outer panel 11 and the heat insulation panel 12 are installed through the first groove 171, and the second outer panel 15 and the fireproof panel 14 are installed through the second groove 172, so that the first outer panel 11, the heat insulation panel 12, the door core panel 13, the fireproof panel 14 and the second outer panel 15 can fit tightly, thereby enhancing the overall stability of the door panel body 1.

[0049] When the first outer panel 11 is clamped in the first groove 171 and the second outer panel 15 is clamped in the second groove 172, a gap may exist between the edge side wall of the first outer panel 11 and the inner wall of the first groove 171. Similarly, a gap may be formed between the edge side wall of the second outer panel 15 and the inner wall of the second groove 172. To further ensure the heat insulation effect inside the heat insulation door panel, the first outer panel 11 is abutted against the edge 17 by the first high temperature resistant tape 111, and the second outer panel 15 is abutted against the edge 17 by the second high temperature resistant tape 151.

[0050] Furthermore, a sealing structure can be formed between the edge side wall of the first outer panel 11 and the inner wall of the first groove 171 by the first high-temperature resistant tape 111, and a sealing structure can be formed between the edge side wall of the second outer panel 15 and the inner wall of the second groove 172 by the second high-temperature resistant tape 151, so as to prevent indoor and outdoor heat from being transferred through the gap between the edge 17 and the first outer panel 11 and the second outer panel 15, thereby further enhancing the heat insulation effect of the thermal insulation door panel on the indoor and outdoor environment.

[0051] The side wall of the edge 17 is sprayed with heat insulation powder, wherein the thickness of the heat insulation powder is greater than or equal to 70 μm, so as to utilize the heat insulation powder to enhance the heat insulation performance of the edge 17, further reduce heat transfer, and enhance the heat insulation effect. The side wall of the edge 17 away from the door panel body 1 is sprayed with heat insulation powder twice to ensure the thickness of the heat insulation powder on the side wall of the edge 17 away from the door panel body 1, so as to avoid the heat insulation effect being affected by the reduction of the thickness of the heat insulation powder due to wear when opening and closing the door.

[0052] Specifically, Figure 1 , Figure 3 and Figure 4As shown, the edge of the first outer panel 11 facing the first groove 171 is provided with a first avoidance opening 112, and the first outer panel 11 is inserted into the first groove 171 through the first avoidance opening 112. The edge of the second outer panel 15 facing the second groove 172 is provided with a second avoidance opening 152, and the second outer panel 15 is inserted into the first groove 171 through the second avoidance opening 152. Thus, while ensuring the thickness of the first outer panel 11 and the second outer panel 15, the structural stability of the entire door panel body 1 is ensured when the first outer panel 11 and the second outer panel 15 are installed in the hemming 17.

[0053] Furthermore, when the heat-insulating door panel is closed in the door frame 2, a gap is generally formed between the heat-insulating door panel and the door frame 2 to prevent indoor and outdoor heat from being transferred through the gap. Figure 1 , Figure 4 , Figure 5 and Figure 6 The door panel body 1 further includes a first seal 18 and a second seal 19. The edge 17 is formed with a third groove 173, the third groove 173 is located between the first groove 171 and the second groove 172, and the opening of the third groove 173 is away from the door panel body 1, and the third groove 173 is provided with a first clamping column 175, and the first seal 18 is fixed to the third groove 173 through the first clamping column 175.

[0054] like Figure 5 As shown, one of the edges 17 is further formed with a fourth groove 174, the opening of the fourth groove 174 is perpendicular to the opening of the third groove 173, the fourth groove 174 is provided with a second clamping column 176, and the second sealing member 19 is fixed to the fourth groove 174 through the second clamping column 176. The first sealing member 18 and the second sealing member 19 are preferably fireproof expansion sealing strips.

[0055] It can be understood that the first sealing member 18 is fixed by the first clamping column 175 , and the second sealing member 19 is fixed by the second clamping column 176 , so that the first sealing member 18 and the second sealing member 19 can move together with the door panel body 1 .

[0056] When the heat-insulating door panel is closed in the door frame 2, the first seal 18 can simultaneously seal against the side wall of the edging 17 and the side wall of the door frame 2 to block the heat transfer between the side wall of the edging 17 and the side wall of the door frame 2. At the same time, the second seal 19 simultaneously seals against the side wall of the edging 17 and the side wall of the door frame 2 facing the outside to block the heat transfer between the side wall of the edging 17 and the side wall of the door frame 2 facing the outside. Then, through the joint action of the first seal 18 and the second seal 19, the gap between the edging 17 of the heat-insulating door panel and the door frame 2 is triple-sealed to ensure that the heat of the indoor and outdoor environments cannot be transferred from the gap between the side wall of the edging 17 and the side wall of the door frame 2, effectively ensuring the heat preservation effect of the door panel body 1 on the indoor and outdoor environments.

[0057] In the embodiment of the present utility model, Figure 1 and Figure 4 As shown, a fireproof member 177 is provided on the side of the edge 17 facing the door core board 13, the width of the fireproof member 177 is 5mm-8mm, wherein the width of the fireproof member 177 is preferably 6mm, the shape of the fireproof member 177 is a cubic structure, and the thickness of the fireproof member 177 is the same as the thickness of the extruded board in the door core board 13. The fireproof board 14 can enhance the fireproof performance of the door panel body 1, increase the heat transfer distance between the third groove 173 and the door core board 13, and further enhance the heat insulation effect of the door panel body 1.

[0058] The utility model also provides an insulation door, such as Figure 1 and Figure 7 As shown, the heat-insulating door comprises a door frame 2 and a heat-insulating door panel as described in any one of the above embodiments, one edge of the heat-insulating door panel is rotatably connected to the door frame 2, the door frame 2 is provided with a mounting groove 21, the opening of the mounting groove 21 faces the second outer panel 15, a third sealing member 22 is installed in the mounting groove 21, and the other edge of the heat-insulating door panel is suitable for abutting by the third sealing member 22. Furthermore, when the heat-insulating door panel is closed to the door frame 2, since the opening of the mounting groove 21 in the door frame 2 faces the second outer panel 15, the third sealing member 22 can abut against the edge position of the second outer panel 15 in the door panel body 1, so that the third sealing member 22 can seal the gap between the edge position of the second outer panel 15 and the door frame 2, and prevent the heat of the indoor environment from flowing into the gap between the second outer panel 15 and the door frame 2, thereby enhancing the indoor heat preservation effect.

[0059] The side of the door frame 2 facing the door panel body 1 and the side of the door frame 2 away from the door panel body 1 are sprayed with thermal insulation powder, wherein the thickness of the thermal insulation powder is greater than or equal to 70 μm, so as to utilize the thermal insulation component to enhance the thermal insulation performance of the door frame 2, further reduce heat transfer, enhance the thermal insulation effect, and further reduce the gap between the door frame 2 and the thermal insulation door panel.

[0060] The above is a preferred embodiment of the present utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present utility model.

Claims

1. An insulation door panel, characterized in that: include: A door panel body, wherein the door panel body is stacked with a first outer panel, an insulation board, a door core panel, a fireproof board and a second outer panel in sequence, the fireproof board is arranged on one side of the second outer panel, the door core panel is arranged on the side of the fireproof board away from the second outer panel, the insulation board is arranged on the side of the door core panel away from the fireproof board, and the first outer panel is arranged on the side of the insulation board away from the door core panel; the insulation board is a ceramic insulation board, and the door core panel is filled with an extruded board; the edge of the first outer panel is wrapped with a first high-temperature resistant tape, and the edge of the second outer panel is wrapped with a second high-temperature resistant tape.

2. The heat-insulating door panel according to claim 1, characterized in that The thickness of the thermal insulation board is 7mm-9mm, and the thickness of the extruded board is 25mm-30mm.

3. The heat-insulating door panel according to claim 1, characterized in that: The first outer panel is a cast aluminum panel, the second outer panel is a medium-fiber wood panel, and a heat-insulating veneer is attached to the side of the second outer panel facing away from the door core panel, and the thickness of the heat-insulating veneer is 0.5 mm-1 mm.

4. The heat-insulating door panel according to claim 1, characterized in that: The door core panel includes a door core and two galvanized door panels, one of the galvanized door panels is arranged on the side of the door core facing the first outer panel, and the other galvanized door panel is arranged on the side of the door core facing the second outer panel, the door core is arranged between the two galvanized door panels, and the extruded board is filled between the door core and the two galvanized door panels.

5. The heat-insulating door panel according to claim 4, characterized in that: The door panel body also includes: The door lock is arranged on the door panel body. A locking extruded plate is arranged in the door core. The locking extruded plate is aligned with the door lock. The locking extruded plate is used to fix the door lock to the door core.

6. The heat-insulating door panel according to claim 1, characterized in that: The door panel body is provided with two edges, and the two edges are provided one by one at two opposite edges of the door panel body; The binding edge is formed with a first groove and a second groove, the opening of the first groove and the opening of the second groove face the door panel body, the first outer panel and the heat insulation panel are clamped in the first groove, and the fireproof panel and the second outer panel are clamped in the second groove; the first outer panel is abutted against the binding edge through the first high temperature resistant adhesive tape, and the second outer panel is abutted against the binding edge through the second high temperature resistant adhesive tape; The side walls of the hemming are sprayed with heat-insulating powder, wherein the thickness of the heat-insulating powder is greater than or equal to 70 μm.

7. The heat-insulating door panel according to claim 6, characterized in that: A first avoidance opening is provided on the edge of the first outer plate facing the first groove, and the first outer plate is inserted into the first groove through the first avoidance opening; a second avoidance opening is provided on the edge of the second outer plate facing the second groove, and the second outer plate is inserted into the first groove through the second avoidance opening.

8. The heat-insulating door panel according to claim 6, characterized in that: The door panel body also includes: A first sealing member, the edge further forms a third groove, the third groove is located between the first groove and the second groove, and the opening of the third groove is away from the door panel body, the third groove is provided with a first clamping column, and the first sealing member is fixed to the third groove through the first clamping column; The second sealing member, wherein one of the edges is further formed with a fourth groove, the opening of the fourth groove is perpendicular to the opening of the third groove, the fourth groove is provided with a second clamping column, and the second sealing member is fixed to the fourth groove through the second clamping column.

9. The heat-insulating door panel according to claim 6, characterized in that: A fireproofing member is provided on the side of the edging facing the door core board, and the width of the fireproofing member is 5mm-8mm.

10. An insulating door, characterized in that: The invention comprises a door frame and the heat-insulating door panel according to any one of claims 1 to 9, wherein one edge of the heat-insulating door panel is rotatably connected to the door frame, the door frame is provided with a mounting groove, the opening of the mounting groove faces the second outer panel, a third sealing member is installed in the mounting groove, and the other edge of the heat-insulating door panel is suitable for abutting through the third sealing member; A side of the door frame facing the door panel body and a side of the door frame away from the door panel body are both sprayed with heat insulation powder, wherein the thickness of the heat insulation powder is greater than or equal to 70 μm.

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