Bridge-cutting pipe mounting structure of thermal insulation door and thermal insulation door

Abstract

The utility model discloses a kind of installation structure of broken bridge pipe of thermal insulation door and thermal insulation door, including broken bridge pipe body and the door frame or door leaf for installing broken bridge pipe body, the contact surface of door frame and door leaf or the side of door leaf contact door frame is equipped with recessed to its interior installation slot one or installation slot two, installation slot one is set along the length direction of the face of door frame or installation slot two along door leaf, the slot bottom of installation slot one or installation slot two is equipped with the strip-shaped mounting hole being set along installation slot length direction, the outer contour of broken bridge pipe body is compatible with the cross-sectional shape of installation slot one or installation slot two and can be pressed into it, the bottom surface of broken bridge pipe body has the connecting portion that is inserted into strip-shaped mounting hole, connecting portion can pass through strip-shaped mounting hole and be clamped in hole along. Compared with prior art, the utility model has the advantages that broken bridge pipe body and strip-shaped mounting hole are clamped and cooperated, realize glueless fixed, completely avoid the problem of glue aging failure;Meanwhile, it is relatively simple to operate, only need to press in to complete installation;Reverse operation can be completed when disassembling, solve the efficiency pain point of "one-time pasting scrap", reduce material waste rate.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation door technology, and in particular to the thermal insulation door's thermal break pipe installation structure and the thermal insulation door itself. Background Technology

[0002] With the continuous improvement of building energy efficiency standards, the thermal insulation performance of insulated doors, as an important component of building envelopes, is receiving increasing attention. Thermal break pipes, a type of thermal insulation strip, are a key thermal insulation component in insulated doors. They effectively block the conduction of heat between the inside and outside through the metal frame, thereby improving the overall insulation performance of the door. Thermal break pipes are typically made of materials with low thermal conductivity, such as PA66 nylon and glass fiber composite materials, and are embedded in the door frame profile through a specific structure to form a "cold-thermal bridge" insulation, significantly reducing the thermal conductivity.

[0003] In the prior art, for example, Chinese utility model patent CN221609825U discloses a high-insulation and heat-preserving combined door frame structure. This structure features a groove in the door frame body. An insulation strip is embedded in the groove, and its top is adhered to the top of the groove using adhesive. Simultaneously, both sides of the insulation strip are tightly attached to the sidewalls of the groove, achieving a stable connection between the insulation strip and the door frame. This structure reduces the thermal bridge area by incorporating holes in the insulation strip and, combined with the dual-cavity design of the insulation strip, effectively improves the heat insulation performance of the door frame.

[0004] However, the aforementioned existing technologies have certain drawbacks in practical applications. Since the thermal insulation strips need to be fixed by applying adhesive, the position must be calibrated before application; otherwise, misalignment of the strips can easily occur, making the process cumbersome. Furthermore, misalignment can easily damage the strips during disassembly, leading to material waste and reduced construction efficiency. In addition, the adhesive bonding method may experience a decrease in bonding strength over long-term use due to temperature changes, aging, and other factors, posing a risk of detachment and affecting service life and safety. Utility Model Content

[0005] This utility model addresses the problems of existing door frame thermal insulation strips being fixed with adhesive. However, this adhesive method can lead to issues such as temperature changes, aging, and the need for alignment during installation, which can result in misalignment of the thermal insulation strips and subsequent damage during disassembly. The technical problem this utility model aims to solve is to provide a thermal break pipe installation structure for insulated doors and an insulated door itself.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a thermal break pipe installation structure for an insulated door, including a thermal break pipe body and a door frame or door leaf for installing the thermal break pipe body. The contact surface between the door frame and the door leaf or the side of the door leaf contacting the door frame is provided with a recessed installation groove one or a second installation groove. The first installation groove is provided along the length direction of the door leaf surface along the door frame or the second installation groove. The bottom of the first installation groove or the second installation groove is provided with a strip-shaped installation hole along the length direction of the installation groove. The outer contour of the thermal break pipe body is adapted to the cross-sectional shape of the first installation groove or the second installation groove and can be pressed into it. The bottom surface of the thermal break pipe body has a connecting part that extends into the strip-shaped installation hole. The connecting part can pass through the strip-shaped installation hole and be engaged with the edge of the hole to achieve glue-free fixing of the thermal break pipe body.

[0007] A further preferred embodiment of this utility model is: the connecting part is composed of a first hook and a second hook, the first hook and the second hook have a deformation gap, and the hook openings of the first hook and the second hook are arranged facing outwards.

[0008] A further preferred embodiment of this utility model is: the ends of the first hook and the second hook are respectively provided with a guide slope one and a guide slope two, and the guide slope one and the guide slope two are arranged in a figure-eight shape.

[0009] A further preferred embodiment of this utility model is that the length direction of the strip-shaped mounting hole is consistent with the length direction of mounting groove one or mounting groove two, and the lengths of the first hook and the second hook are equal to the length of the mounting hole.

[0010] A further preferred embodiment of this utility model is: the first hook and the second hook have parallel connecting rods, and the distance between the outer sides of the two connecting rods forms a transition fit with the width of the strip mounting hole.

[0011] Another aspect of this utility model is an insulated door, comprising a door frame and a door leaf with an internal insulation board. The contact surfaces of the door frame and the door leaf each have a mounting groove (I) extending along their length, with four mounting grooves connected end-to-end. The sides of the door leaf that contact the door frame each have a mounting groove (II) extending along their length, with four mounting grooves (II) connected end-to-end. The openings of mounting grooves I and II are opposite each other, and the bottom of both mounting grooves I and II is provided with a strip-shaped mounting hole. Both mounting grooves I and II contain a thermal break pipe body from the aforementioned thermal break pipe installation structure, with two thermal break pipe bodies respectively engaging with mounting grooves I and II.

[0012] A further preferred embodiment of this utility model is as follows: the bottom of the first or second mounting groove is provided with two parallel strip-shaped mounting holes, and a bridge is formed between the two strip-shaped mounting holes to connect the two side walls of the first or second mounting groove. The bottom of the broken bridge tube is formed with two sets of connecting parts, and the two sets of connecting parts are respectively engaged with the two strip-shaped mounting holes.

[0013] A further preferred embodiment of this utility model is as follows: the door leaf includes an inner door panel with low thermal conductivity and an outer door panel with high impact resistance. The outer door panel has flanges extending towards the inner door panel around its perimeter. The ends of the flanges are fixedly connected to the inner door panel. The second mounting groove is formed on the flange.

[0014] A further preferred embodiment of this utility model is: the inner door panel, the outer door panel, and the four flanges together form a cavity, and the insulation board is disposed in the cavity, wherein the insulation board is a high-density foam board.

[0015] A further preferred embodiment of this utility model is: the inner door panel is made of wood, the outer door panel is made of steel, and the door frame is made of steel.

[0016] Compared with the prior art, the present invention has the following advantages: 1. By setting strip-shaped mounting holes in the mounting groove, and providing a connecting part on the bottom surface of the thermal break tube that mates with the connecting hole, the connecting part can pass through the strip-shaped mounting hole and snap onto the edge of the hole, thus achieving glue-free fixing of the thermal break tube and completely avoiding the problem of glue aging and failure, significantly improving the reliability and safety of long-term use; at the same time, the operation of the connecting part and the strip-shaped mounting hole is relatively simple, requiring only pressing to complete the installation; disassembly is done by reversing the operation, and the thermal break tube can be reused, solving the efficiency problem of "one-time pasting and scrapping" and reducing material waste rate.

[0017] 2. The installation of strip-shaped mounting holes and thermal break pipes largely breaks up the door frame and door leaf, allowing only the connecting bridges to conduct a small amount of heat, greatly improving the insulation effect of the door frame and door leaf. The snap-fit ​​structure of the thermal break pipe body isolates heat conduction, greatly improving the insulation efficiency of the entire system and effectively blocking heat transfer between the indoor and outdoor sides. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a front view of the door frame and door leaf of this utility model; Figure 2 This utility model Figure 1 Sectional view at point AA; Figure 3 This utility model Figure 2A magnified view of a section at point C; Figure 4 This utility model Figure 1 Sectional view at point BB; Figure 5 This is a front view of the thermal break pipe body of this utility model; Figure 6 This is a partial view of the rear view of the new door frame in this utility model.

[0020] In the diagram: 1. Thermal break pipe body; 2. Door frame; 3. Door leaf; 31. Inner door panel; 32. Outer door panel; 321. Flanged edge; 33. Cavity; 34. High-density foam board; 4. Mounting groove one; 5. Mounting groove two; 6. Strip mounting hole; 7. Connecting part; 71. First hook; 72. Second hook; 73. Guide slope one; 74. Guide slope two; 75. Connecting rod; 76. Deformation gap; 8. Bridge. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0022] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0023] This embodiment mainly describes the installation structure of the thermal break pipe for insulated doors, as detailed below: like Figures 1-6As shown, the thermal break pipe installation structure of the insulated door includes a thermal break pipe body 1 and a door frame 2 or door leaf 3 for installing the thermal break pipe body 1. The four contact surfaces of the door frame 2 and the door leaf 3 are provided with a first installation groove 4 that is recessed inward, or the four sides of the door leaf 3 that contact the door frame 2 are provided with a second installation groove 5 that is recessed inward. The first installation groove 4 is provided along the length of the door frame 2 or the second installation groove 5 along the surface where the door leaf 3 is located. The bottom of the first installation groove 4 or the second installation groove 5 is provided with a strip-shaped installation hole 6 that is provided along the length of the installation groove. The outer contour of the thermal break tube 1 is adapted to the cross-sectional shape of the mounting groove, and can be pressed into the groove and spring back to fill the entire cross-section, achieving airtight coverage. The bottom surface of the tube extends integrally with a connecting part 7, which passes downward through the strip mounting hole 6 and snaps into the edge of the hole. This allows the thermal break tube 1 to withstand the lateral shearing caused by repeated opening and closing of the door leaf 3 without the need for glue or screws, completely eliminating the hidden danger of "adhesive aging and falling off" in the background technology, and ensuring the continuity of the thermal break and the interruption of thermal bridges. At the same time, the connection part 7 and the strip mounting hole 6 cooperate, making the operation relatively simple. Installation can be completed by simply pressing it in. Disassembly can be done by reversing the operation. The thermal break tube 1 can be reused, solving the efficiency problem of "one-time pasting and scrapping" and reducing material waste.

[0024] Specifically, the connecting part 7 consists of a first hook 71 and a second hook 72. The two hooks are integrally formed during the extrusion molding of the tube body, with a deformation gap 76 in the middle. The hook openings face outwards respectively, forming barbs. During installation, the two hooks are first compressed inwards by the side wall of the strip mounting hole 6, and after passing through the hole, they instantly rebound, with each hook opening hooking onto the bottom surface of both sides of the strip mounting hole 6, generating pull-out resistance. This symmetrical double-hook layout transforms single-point force into double-line engagement, which not only disperses stress but also allows the tube body to slide slightly within the groove with seasonal temperature differences, avoiding the problem of cracking due to shear fatigue in traditional adhesives.

[0025] Specifically, the ends of the first hook 71 and the second hook 72 are each provided with a guide ramp 73 and a guide ramp 74, respectively, which are flared outwards in a "V" shape. Assembly workers do not need positioning fixtures; they only need to press the broken bridge pipe body 1 vertically down, and the "V" ramps automatically guide the hooks to close. Simply align the hooks with the holes and press to complete the installation. For reverse disassembly, pressing the hooks inwards allows for easy removal, leaving the pipe body intact. This achieves quick installation and disassembly, solving the efficiency problem of "one-time pasting resulting in scrap" in the previous technology.

[0026] Specifically, the length direction of the strip mounting hole 6 is consistent with the length direction of the mounting groove 4 or the mounting groove 5. The lengths of the first hook 71 and the second hook 72 are equal to the length of the strip mounting hole 6, so that the first hook 71 and the second hook 72 are evenly engaged along the entire length, avoiding thermal bridge gaps caused by local warping. The hook length is consistent with the hole length, ensuring that each millimeter provides pull-out resistance, which greatly reduces the amount of sagging in the middle of the entire thermal break pipe 1 after installation. Even if the thermal break pipe 1 is subjected to door pressure for a long time, no visible gaps will be produced, maintaining a flat appearance and thermal insulation continuity.

[0027] Specifically, the first hook 71 and the second hook 72 have parallel connecting rods 75. The distance between the outer sides of the two connecting rods 75 is equal to the width of the strip mounting hole 6, and the tolerance zone is controlled within -0.05 mm to 0 mm to form a transition fit. After assembly, the tube body has zero wobble in the groove width direction and no noise under the impact of closing the door. Example

[0028] This embodiment mainly describes the insulated door, as follows: The insulated door includes a door frame 2 and a door leaf 3. The door leaf 3 is equipped with a heat-insulating board. The four contact surfaces of the door frame 2 and the door leaf 3 each have a mounting groove 4 extending along its length. The four mounting grooves 4 are connected end to end. The four sides of the door leaf 3 that contact the door frame 2 each have a mounting groove 5 extending along its length. The four mounting grooves 5 are connected end to end. The openings of the mounting grooves 4 and 5 are opposite each other. The bottom of the mounting grooves 4 and 5 are provided with strip-shaped mounting holes 6. The mounting grooves 4 and 5 are used to install and accommodate the thermal break pipe 1 in Embodiment 1. The two thermal break pipes 1 are respectively engaged with the strip-shaped mounting holes 6 in the mounting grooves 4 and 5. After the thermal break pipe 1 is installed, the thermal break pipe 1 and the strip mounting hole 6 on the door frame 2 divide the door frame 2 into an indoor section and an outdoor section. The part that contacts the door leaf 3 forms a 360-degree partition. Similarly, the thermal break pipe 1 and the strip mounting hole 6 on the door leaf 3 divide the door leaf 3 into an indoor section and an outdoor section. When the door is closed, the thermal break pipe 1 on the door frame 2 and the door leaf 3 instantly form a 360° ring-shaped top, completely separating the door frame 2 and the door leaf 3. This prevents heat from being transferred from the door frame 2 to the door leaf 3 or from the door leaf 3 to the door frame 2, achieving a double improvement in heat insulation and sealing brought by the "double groove interlocking".

[0029] Two strip-shaped mounting holes 6 are opened side by side at the bottom of each mounting groove 4 or mounting groove 5. A bridge 8 is formed between the two strip-shaped mounting holes 6, connecting the two side walls of the mounting groove 4 or mounting groove 5, so that the two side walls of the groove are still connected as one. Correspondingly, two sets of hooks are formed at the bottom of each broken bridge tube 1, which are respectively fastened into the two holes to form "double-sided locking". The setting of the strip-shaped mounting holes 6 and the broken bridge tube 1 breaks the door frame 2 and the door leaf 3. Only the connected bridge 8 can conduct a small amount of heat, which greatly improves the heat insulation effect of the door frame 2 and the door leaf 3.

[0030] Specifically, the door leaf 3 is composed of an inner door panel 31 with low thermal conductivity and an outer door panel 32 with high impact resistance. The outer door panel 32 can be made of steel, aluminum alloy, stainless steel, etc., preferably steel. The inner door panel 31 can be made of ENF solid core board, graphene homogeneous board and template, preferably wood. The outer door panel 32 has flanges 321 that bend inward toward the inner door panel 31 around its perimeter. The ends of the flanges 321 are fastened to the inner door panel 31 by pop rivets. The mounting groove 5 is opened on the four flanges 321. After the thermal break tube 1 is inserted, the thermal bridge of the flanges 321 is effectively cut off by the thermal break tube 1 and the strip mounting hole 6, which reduces the heat transfer coefficient of the steel-wood composite interface. In this solution, the thermal break pipe 1 forms a physical isolation at the wood-steel interface, which retains the advantages of steel doors in terms of anti-theft and impact resistance, while also possessing the heat insulation and aesthetic characteristics of wooden doors. The entire door can be disassembled, and the steel, wood, and plastic can be recycled separately, meeting the three-star green building standard and achieving a balance between high performance and environmental protection.

[0031] Specifically, the inner door panel 31, the outer door panel 32, and the four-way flange 321 form a cavity 33, in which a high-density foam board 34 is fixed. The high-density foam board 34 and the outer thermal break pipe 1 together constitute an "inner and outer double insulation" system, which can cut off heat transfer to a large extent and greatly improve the insulation effect of the insulation door.

[0032] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] The above provides a detailed description of the thermal break pipe installation structure and the thermal insulated door provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The above description of the embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A thermal break pipe installation structure for an insulated door, comprising a thermal break pipe body and a door frame or door leaf for installing the thermal break pipe body, characterized in that: The door frame and the door leaf contact surface or the side of the door leaf contacting the door frame are provided with a recessed mounting groove one or mounting groove two. Mounting groove one is provided along the length of the door leaf surface along the door frame or mounting groove two. The bottom of mounting groove one or mounting groove two is provided with a strip-shaped mounting hole along the length of the mounting groove. The outer contour of the thermal break tube body is adapted to the cross-sectional shape of mounting groove one or mounting groove two and can be pressed into it. The bottom surface of the thermal break tube body has a connecting part that extends into the strip-shaped mounting hole. The connecting part can pass through the strip-shaped mounting hole and be snapped onto the edge of the hole to achieve glue-free fixing of the thermal break tube body.

2. The thermal break pipe installation structure for the insulated door according to claim 1, characterized in that: The connecting part consists of a first hook and a second hook, with a deformation gap between the first hook and the second hook, and the hook openings of the first hook and the second hook are arranged facing outwards.

3. The thermal break pipe installation structure for the insulated door according to claim 2, characterized in that: The ends of the first hook and the second hook have a guide slope one and a guide slope two, respectively, and the guide slope one and the guide slope two are arranged outward in a figure-eight shape.

4. The thermal break pipe installation structure for the insulated door according to claim 2, characterized in that: The length direction of the strip-shaped mounting hole is consistent with the length direction of mounting groove one or mounting groove two, and the lengths of the first hook and the second hook are equal to the length of the mounting hole.

5. The thermal break pipe installation structure for the insulated door according to claim 2, characterized in that: The first hook and the second hook have parallel connecting rods, and the distance between the outer sides of the two connecting rods forms a transition fit with the width of the strip mounting hole.

6. An insulated door, comprising a door frame and a door leaf with a built-in insulation board, characterized in that: The contact surfaces of the door frame and the door leaf each have a first mounting groove extending along their length, and the four mounting grooves are connected end to end; the side of the door leaf that contacts the door frame each has a second mounting groove extending along its length, and the four second mounting grooves are connected end to end; the openings of the first and second mounting grooves are opposite each other, and the bottom of the first and second mounting grooves each has a strip-shaped mounting hole; the first and second mounting grooves each have a thermal break pipe body in the thermal break pipe installation structure of the insulated door according to any one of claims 1 to 5, and the two thermal break pipe bodies are respectively engaged with the first and second mounting grooves.

7. The heat-insulating door according to claim 6, characterized in that: The bottom of the first or second mounting groove is provided with two parallel strip-shaped mounting holes, and a bridge is formed between the two strip-shaped mounting holes to connect the two side walls of the first or second mounting groove. The bottom of the broken bridge tube is formed with two sets of connecting parts, which are respectively engaged with the two strip-shaped mounting holes.

8. The heat-insulating door according to claim 6, characterized in that: The door panel includes an inner door panel with low thermal conductivity and an outer door panel with high impact resistance. The outer door panel has flanges extending into the inner door panel around its perimeter. The ends of the flanges are fixedly connected to the inner door panel. The second mounting groove is formed on the flange.

9. The heat-insulating door according to claim 8, characterized in that: The inner door panel, outer door panel and four flanges together form a cavity, and the insulation board is placed in the cavity. The insulation board is a high-density foam board.

10. The heat-insulating door according to claim 8, characterized in that: The inner door panel is made of wood, the outer door panel is made of steel, and the door frame is made of steel.

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