A type of thermal break door

Abstract

This invention discloses a thermally broken door, comprising a door frame, door panels, a hinge structure, and a lock. Two door panels are arranged parallel to each other front to back. The door frame surrounds the door panels to fix them in place, forming a mounting cavity between the two door panels. Within the mounting cavity, two symmetrically distributed frame bodies divide the cavity into at least three chambers. The chamber between the two frame bodies is the first chamber. A lead screw assembly is installed in the first chamber, comprising a lead screw and a nut block adapted to the lead screw. A push plate is mounted on the nut block. The left and right sides of the push plate abut against the opposite surfaces of the two frame bodies, and the front and rear sides of the push plate abut against the inner walls of the two panels. The push plate can move up and down along the lead screw with the nut block. Air vents are provided at the upper and lower ends of the door frame in the first chamber. This invention not only provides thermal insulation but also achieves a certain degree of cooling.

Description

Technical Field

[0001] This invention relates to the field of insulation technology, and in particular to a thermal break insulation door. Background Technology

[0002] Insulated doors are generally made of aluminum profiles using double thermal break technology. Their main function is to block heat transfer inwards or outwards, thus providing thermal insulation. Currently, most thermal break doors on the market use a thermal break structure to achieve insulation. This involves adding a nylon thermal break strip between the inner and outer panels to break the metal structure, preventing direct heat transfer and condensation. The structure typically includes a thermal break strip on the outer panel, an insulation layer in the middle, and a sealing strip on the inner panel. While this provides some insulation, the effect is limited, especially for already heated panels or the thermal break structure itself, where it cannot effectively cool the material. Summary of the Invention

[0003] The purpose of this invention is to design a thermal break door to overcome the shortcomings of the above-mentioned technology.

[0004] This invention designs a thermally broken door, including a door frame, door panels, a hinge structure, and a lock. Two door panels are arranged parallel to each other front to back. The door frame surrounds the door panels to fix them in place, forming an installation cavity between the two door panels. Two symmetrically distributed frame bodies, made of thermally broken profiles, are installed within the installation cavity. The front and rear sides of each frame body are respectively attached to the inner walls of the two door panels. The two frame bodies divide the installation cavity into at least three chambers. The chamber between the two frame bodies is the first chamber. A lead screw assembly is installed in the first chamber. The lead screw assembly includes a lead screw and a nut block adapted to the lead screw. The two ends of the lead screw are rotatably connected to the upper and lower ends of the door panel, respectively. On the upper and lower frames, push plates are provided on the nut blocks. The left and right sides of the push plates abut against the opposite surfaces of the two frames, and the front and rear sides of the push plates abut against the inner walls of the two panels. The push plates can move up and down along the screw with the nut blocks. The door frame or door panel is provided with air outlets at the upper and lower ends of the first chamber. When the push plates move upward, they push and compress the air in the first chamber upward and discharge it from the upper air outlet. When the push plates move downward, they push and compress the air in the first chamber downward and discharge it from the lower air outlet. This allows the hot air in the first chamber to be discharged in time, achieving the purpose of heat insulation and cooling.

[0005] Preferably, the push plate includes a base connected to the nut block and telescopic plates slidably connected to both sides of the base, and the telescopic plates can adaptively extend and retract relative to the base so that the top of the telescopic plates can always abut against the opposing surfaces of the two frames.

[0006] Further optimization involves a guide post inside the base, a telescopic plate fitted inside the base, a through hole at the bottom of the telescopic plate, and the top of the guide post passing through the through hole, allowing the telescopic plate to reciprocate along the guide post. A spring is fitted on the guide post, with one end of the spring abutting against the bottom of the telescopic plate and the other end abutting against the inside of the base.

[0007] In a further optimization, a roller is rotatably connected to the top of the telescopic plate, and the outer peripheral wall of the roller abuts against the surface of the frame, so that the roller can roll along the frame when the push plate moves up and down.

[0008] Further optimization involves the frame comprising two opposing frame pieces, each with a buckle groove, and the opposing buckles of the two frame pieces being connected by a heat insulation strip.

[0009] Further optimization involves two heat insulation strips, arranged parallel and spaced apart between the two frame materials. The two heat insulation strips and the two frame materials enclose a first cavity, and an aerogel felt is provided inside the first cavity.

[0010] Preferably, the frame comprises an upper section, a middle section, and a lower section from top to bottom. The top of the upper section is inclined toward the lead screw, the bottom of the lower section is inclined toward the lead screw, and the middle section is parallel to the lead screw, such that the distance between the two upper sections of the frame gradually decreases from bottom to top, and the distance between the two lower sections of the frame gradually decreases from top to bottom.

[0011] In a further optimization, the roller, the two frame materials, and the heat insulation strip facing the frame materials are arranged to form a second cavity, and the second cavity is provided with heat insulation ceramic beads.

[0012] Preferably, the three chambers are a first chamber and two second chambers, with the two second chambers located on either side of the first chamber. The second chambers are either evacuated or filled with PU polyurethane foam.

[0013] Preferably, the door panel has a smooth inner wall located in the first chamber.

[0014] The technical effect of this invention is that a thermal break frame is provided between the two door panels, and the thermal break frame and the door panels enclose an installation cavity. A lead screw pair is provided in the installation cavity, and a push plate is provided on the lead screw pair. The push plate divides the installation cavity into upper and lower parts. The push plate moves up and down under the drive of the lead screw pair, thereby pushing the hot air in the installation cavity up or down, and finally expelling the hot air from the air outlet into the installation cavity. Fresh air can be replenished through the air outlet, thereby lowering the temperature in the installation cavity. This prevents the heat from the door panel from being further conducted to the other door panel through the air in the installation cavity. After the air in the installation cavity cools down, the door panel will also cool down accordingly, so that the whole not only has heat insulation, but also has a certain degree of cooling effect. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the overall structure.

[0016] Figure 2 This is a structural cross-sectional view of the frame.

[0017] Figure 3 This is a cross-sectional view of the push plate structure.

[0018] In the diagram: 1. Door frame; 2. Door panel; 3. Mounting cavity; 31. First chamber; 32. Second chamber; 4. Frame body; 41. Frame material; 411. Upper section; 412. Middle section; 413. Lower section; 414. Snap groove; 5. Lead screw pair; 51. Lead screw; 52. Nut block; 6. Push plate; 61. Base; 62. Telescopic plate; 63. Guide post; 64. Through hole; 65. Spring; 66. Roller; 7. Air outlet; 8. Thermal insulation strip; 9. First chamber; 10. Aerogel felt; 11. Second chamber; 12. Thermal insulation ceramic beads. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0020] This invention includes a door frame 1, door panels 2, a hinge structure, and a lock. There are two door panels 2, arranged parallel to each other front to back. The door frame 1 surrounds the door panels 2 to fix them in place. The fixing between the door frame 1 and the door panels 2 uses conventional technology. A gap is left between the two door panels 2, thus forming an installation cavity 3 between the door frame 1 and the two door panels 2. Two symmetrically distributed frame bodies 4 are provided within the installation cavity 3. The frame bodies 4 are made of thermally broken profiles and are arranged along the height direction of the door panels 2, meaning that both ends of the frame bodies 4 are connected to the top and bottom frame bodies 4, respectively. The front and rear sides of the frame bodies 4 are attached to the inner walls of the corresponding door panels 2. Therefore, the two frames 4 divide the mounting cavity 3 into at least three chambers. The first chamber 31 is equipped with a lead screw pair 5, which includes a lead screw 51 and a nut block 52 adapted to the lead screw 51. The two ends of the lead screw 51 are rotatably connected to the upper and lower ends of the door panel 2 or to the frame 4 located at the upper and lower ends, that is, the lead screw 51 can rotate along the door frame 1 and the door panel 2. The first chamber 31 is also equipped with a driving component such as a small servo motor to drive the lead screw 51 to rotate forward and backward. The nut block 52 is limited by the front and rear of the door panel 2, so it moves up and down with the forward and reverse rotation of the lead screw 51.

[0021] A push plate 6 is provided on the nut block 52. The left and right sides of the push plate 6 abut against the opposite surfaces of the two frame bodies 4, and the front and rear sides of the push plate 6 abut against the inner walls of the two panels, so that the push plate 6 effectively divides the first chamber 31 into upper and lower halves. The push plate 6 moves up and down under the action of the nut block 52. The up and down movement of the push plate 6 pushes the air in the first chamber 31 upward and downward. The door frame 1 is provided with air outlets 7 at the upper and lower ends of the first chamber 31. When the push plate 6 moves upward, the push plate 6 pushes the air in the first chamber 31 upward and compresses it. The air is discharged from the upper air outlet 7. When the push plate 6 moves down, it pushes and compresses the air in the first chamber 31 and discharges it from the lower air outlet 7. This allows the hot air in the first chamber 31 to be discharged in time. The heat from the outside is conducted through the outer door panel 2, the first chamber 31 and the inner door panel 2 in sequence. Therefore, the air in the first chamber 31 is heated and becomes hot air. The push plate 6 can discharge the hot air from the first chamber 31 in time, thereby preventing the hot air in the first chamber 31 from being conducted to the inner door panel 2, thus achieving the effect of heat insulation. Furthermore, the push plate 6 includes a base 61 connected to the nut block 52. The base 61 is a square plate with mounting holes at both ends. A telescopic plate 62 is fitted inside the mounting holes. The telescopic plate 62 can slide axially back and forth along the mounting holes. There are two telescopic plates 62, which are slidably connected to both sides of the base 61. A guide post 63 is provided inside the base 61. A through hole 64 is provided at the bottom of the telescopic plate 62. The top of the guide post 63 passes through the through hole 64, and the telescopic plate 62 can reciprocate along the guide post 63. A spring 65 is fitted on the upper part, with one end of the spring 65 abutting against the bottom of the telescopic plate 62 and the other end abutting against the inside of the base 61, so that the telescopic plate 62 can adaptively extend and retract relative to the base 61. In this way, the top of the telescopic plate 62 can always abut against the opposing surfaces of the two frames 4. A roller 66 is rotatably connected to the top of the telescopic plate 62, and the outer peripheral wall of the roller 66 abuts against the surface of the frame 4, so that the roller 66 can roll along the frame 4 when the push plate 6 moves up and down, thereby preventing the push plate 6 from getting stuck due to static friction with the frame 4 when it moves up and down.

[0022] It should be noted that the inner wall of the door panel 2 is processed to form a smooth surface. The front and rear sides of the push plate 6 are not completely pressed against the inner wall of the corresponding door panel 2. This facilitates the extension and retraction of the telescopic plate 62 and the overall up and down movement of the push plate 6. Although it cannot achieve a completely tight seal, it does not affect the overall effect of the push plate 6 in pushing hot air.

[0023] Furthermore, the frame 4 includes two opposing frame pieces 41, each with a fastening groove 414. The structures of the frame pieces 41 and the fastening grooves 414 are relatively conventional technologies. The opposing fastening grooves 414 of the two frame pieces 41 are connected by heat insulation strips 8. In this embodiment, there are two heat insulation strips 8, with both ends of the heat insulation strips 8 respectively fastened into the fastening grooves 414 of the corresponding frame pieces 41. The two heat insulation strips 8 are arranged parallel and spaced apart between the two frame pieces 41. The two heat insulation strips 8 and the two frame pieces 41 enclose a first cavity 9, and an aerogel felt 10 is provided in the first cavity 9, thereby enabling the frame 4 to achieve a heat insulation effect.

[0024] Furthermore, a second cavity 11 is formed by the roller 66, the two frame pieces 41, and the heat insulation strip 8 facing the frame pieces 41. The second cavity 11 is provided with heat insulation ceramic beads 12, which can rotate within the second cavity 11. The roller 66 of the push plate 6 abuts against the heat insulation ceramic beads 12, and the heat insulation ceramic beads 12 rotate as the roller 66 rolls, which not only prevents the roller 66 from getting stuck, but also further enhances the heat insulation effect of the frame 4.

[0025] Furthermore, in this embodiment, there are three chambers: a first chamber 31 and two second chambers 32. The two second chambers 32 are located on both sides of the first chamber 31. The second chambers 32 are either evacuated or filled with PU polyurethane foam to further enhance the heat insulation effect of the door panel 2.

[0026] Furthermore, the door frame 1 can also be made of thermally broken profile. The installation connection between the door frame 1 and the door panel 2 is conventional and will not be described in detail here.

[0027] Furthermore, the door panel 2 can be made of glass, with the two panels serving as two panes of glass, forming a double-layered glass door panel 2. A decorative strip can be installed inside the mounting cavity 3, and the frame 4 and lead screw 51 can be hidden within the decorative strip. The push plate 6 can be made into a horizontal linear plate, with decorative strips on its sides along its length, enhancing and beautifying the visual effect of the push plate 6 moving up and down.

[0028] It should be noted that the top and bottom door frames 1 are also provided with channels along the length direction. The channels extend to both ends of the corresponding door frames 1 and connect with the outside. The air outlet 7 is connected to the channel, so that the hot air discharged from the air outlet 7 can be discharged through the channel. At the same time, the push plate 6 moves up and down to generate a certain negative pressure effect, so that some outside air will enter the first chamber 31 through the channel and the air outlet 7, thereby playing a certain role in cooling the entire door panel 2.

[0029] In this embodiment, the frame 4 includes an upper section 411, a middle section 412, and a lower section 413 from top to bottom. The top of the upper section 411 is inclined toward the lead screw pair 5, and the bottom of the lower section 413 is inclined toward the lead screw pair 5. The middle section 412 is parallel to the lead screw pair 5, so that the distance between the upper sections 411 of the two frames 4 gradually decreases from bottom to top, and the distance between the lower sections 413 of the two frames 4 gradually decreases from top to bottom. The middle section is not attached to the door frame 1. Therefore, there are three chambers in this embodiment. The chamber located between the two frames 4 is the first chamber 31. The upper and lower parts of the first chamber 31 are funnel-shaped, that is, the path of hot air when it is pushed is funnel-shaped, which makes it easy for the hot air to be pushed to the air outlet 7 and to be discharged from the air outlet 7 as soon as possible, avoiding the hot air from being left in the first chamber 31. The telescopic plate 62 of the push plate 6 is adaptively telescopic, so as it moves up and down, it can abut against the frame 4, push and compress the hot air, and then discharge it.

[0030] This invention is not limited to the preferred embodiments described above. Anyone can derive other products in various forms under the guidance of this invention. However, regardless of any changes in shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this invention.

Claims

1. A thermally broken door, comprising a door frame (1), door panels (2), a hinge structure, and a lock, wherein there are two door panels (2) arranged parallel to each other front and back, and the door frame (1) is arranged around the perimeter of the door panels (2) to fix the door panels (2), characterized in that, An installation cavity (3) is formed between two door panels (2). Two symmetrically distributed frames (4) are provided in the installation cavity (3). The frames (4) are made of thermally broken profiles. The front and rear sides of the frames (4) are respectively attached to the inner walls of the two door panels (2). The two frames (4) divide the installation cavity (3) into at least three chambers. The chamber located between the two frames (4) is the first chamber (31). A lead screw pair (5) is provided in the first chamber (31). The lead screw pair (5) includes a lead screw (51) and a nut block (52) adapted to the lead screw (51). The two ends of the lead screw (51) are respectively rotatably connected to the upper and lower ends of the door panel (2) or to the frame (4) located at the upper and lower ends. A push plate (6) is provided on the nut block (52). The left and right sides of the push plate (6) are... The two sides respectively abut against the opposite surfaces of the two frames (4), and the front and rear sides of the push plate (6) abut against the inner walls of the two panels respectively. The push plate (6) can move up and down along the screw (51) with the nut block (52). The door frame (1) or door panel (2) is provided with air outlets (7) at the upper and lower ends of the first chamber (31). When the push plate (6) moves up, the push plate (6) pushes and compresses the air in the first chamber (31) upward and discharges it from the air outlet (7) at the upper end. When the push plate (6) moves down, the push plate (6) pushes and compresses the air in the first chamber (31) downward and discharges it from the air outlet (7) at the lower end. This allows the hot air in the first chamber (31) to be discharged in time to achieve the purpose of heat insulation and cooling.

2. The thermally broken door according to claim 1, characterized in that, The push plate (6) includes a base (61) connected to the nut block (52) and a telescopic plate (62) slidably connected to both sides of the base (61). The telescopic plate (62) can adaptively extend and retract relative to the base (61) so that the top of the telescopic plate (62) can always abut against the opposite surfaces of the two frames (4).

3. A thermally broken door according to claim 2, characterized in that, The base (61) is provided with a guide post (63), and the telescopic plate (62) is sleeved in the base (61). The bottom of the telescopic plate (62) is provided with a through hole (64). The top of the guide post (63) passes through the through hole (64). The telescopic plate (62) can move back and forth along the guide post (63). A spring (65) is sleeved on the guide post (63). One end of the spring (65) abuts against the bottom of the telescopic plate (62), and the other end abuts against the base (61).

4. A thermally broken door according to claim 3, characterized in that, The top of the telescopic plate (62) is rotatably connected to a roller (66), the outer peripheral wall of the roller (66) abuts against the surface of the frame (4), so that the roller (66) can roll along the frame (4) when the push plate (6) moves up and down.

5. A thermally broken door according to claim 4, characterized in that, The frame (4) includes two frame pieces (41) arranged opposite each other. Each frame piece (41) is provided with a buckle groove (414). The buckle grooves (414) of the two frame pieces (41) are connected by a heat insulation strip (8).

6. A thermally broken door according to claim 5, characterized in that, The number of heat insulation strips (8) is two, which are arranged in parallel and spaced apart between the two frame materials (41). The two heat insulation strips (8) and the two frame materials (41) enclose a first cavity (9), and an aerogel felt (10) is provided in the first cavity (9).

7. A thermally broken door according to claim 1, characterized in that, The frame (4) includes an upper section (411), a middle section (412), and a lower section (413) from top to bottom. The top of the upper section (411) is inclined toward the lead screw (51), the bottom of the lower section (413) is inclined toward the lead screw (51), and the middle section (412) is parallel to the lead screw (51), so that the distance between the upper sections (411) of the two frames (4) gradually decreases from bottom to top, and the distance between the lower sections (413) of the two frames (4) gradually decreases from top to bottom.

8. A thermally broken door according to claim 6, characterized in that, The roller (66), the two frame pieces (41) and the heat insulation strip (8) facing the frame piece (41) enclose a second cavity (11), and the second cavity (11) is provided with heat insulation ceramic beads (12).

9. A thermally broken door according to claim 1, characterized in that, The three chambers are a first chamber (31) and two second chambers (32). The two second chambers (32) are located on both sides of the first chamber (31). The second chambers (32) are either evacuated or filled with PU polyurethane foam.

10. A thermally broken door according to claim 1, characterized in that, The door panel (2) has a smooth inner wall located in the first chamber (31).

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