A new type of thermal insulation door

Abstract

The present invention discloses a novel thermal break steel high-insulation door, comprising a door frame, a door leaf disposed within the door frame, and a hinge rotatably connected between the door frame and the door leaf. The door frame comprises two sets of parallel vertical frames and a transverse frame fixedly disposed at the upper and lower ends of the two sets of vertical frames. The vertical frame and the transverse frame each comprise two sets of section steel and a plurality of fixed connectors and reinforcement tabs fixedly connected between the two sets of section steel. The reinforcement tab is disposed on the side of the door frame near the door opening, and the fixed connector is disposed on the side of the door frame near the door leaf. The fixed connectors are arranged at intervals, and the reinforcement tab is provided with a plurality of thermal break holes and / or mounting holes. The sides of the vertical frame and the transverse frame near the interior are both fixedly disposed with insulation strips. The present invention forms multiple thermal break holes between the fixed connectors and the reinforcement tabs by changing the structure of the transverse frame and the vertical frame in the door frame. The reinforcement tabs increase the strength and stability of the door frame, thereby satisfying the door frame rigidity requirements while providing the door frame with good thermal insulation performance.

Description

Technical Field

[0001] The present invention relates to the technical field of doors and windows, in particular to a novel thermal insulation door. Background Art

[0002] With the promotion of building energy conservation, doors and windows, as important channels for communication with the outside world, suffer from serious energy loss. As for the entrance doors in public areas, the commonly used thermal insulation and fireproof entrance doors on the market are all filled with thermal insulation materials inside the door leaf, and then sealed with sealing strips at the joints between the door leaf and the door frame to increase the thermal insulation effect. On this basis, in order to achieve high thermal insulation function, it is necessary to increase the thickness of the door leaf filling core and the thickness of the door leaf. At the same time, the entrance door needs to have an anti-theft function, and the anti-theft door frame is mostly a steel structure. The door leaf consists of two layers of steel plates inside and outside. The door leaf filling is mostly honeycomb paper or rock wool with fireproof performance, and a small part of the filling is honeycomb aluminum foil. Since the main body of the anti-theft door and thermal insulation and fireproof entrance door is a steel structure, the heat transfer coefficient of steel is relatively large, resulting in low thermal insulation of the anti-theft door and thermal insulation and fireproof entrance door. Summary of the Invention

[0003] The purpose of the present invention is to provide a new type of thermal insulation door to solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a new type of thermal insulation door, comprising a door frame, a door leaf arranged inside the door frame, and a hinge rotatably connected between the door frame and the door leaf, the door frame comprising two groups of vertical frames arranged in parallel and horizontal frames fixedly arranged at the upper and lower ends of the two groups of vertical frames, the vertical frame and the horizontal frame both comprising two groups of steel sections and several groups of fixed connectors and reinforcement pull tabs fixedly connected between the two groups of steel sections, the reinforcement pull tabs being arranged on the side of the door frame close to the door opening, the fixed connectors being arranged on the side of the door frame close to the door leaf, the fixed connectors being arranged at intervals, and the reinforcement pull tabs being provided with several groups and / or mounting holes; the vertical frame and the horizontal frame are both fixedly provided with insulation strips on the side close to the interior of the room.

[0006] Preferably, the fixed connector is a bracket plate, and adjacent fixed connectors are arranged in an eight-shaped pattern, and adjacent fixed connectors are arranged at intervals to form a broken bridge.

[0007] Preferably, the steel sections are divided into vertical frame steel sections and transverse frame steel sections, and the adjacent vertical frame steel sections and transverse frame steel sections are fixedly connected by angle screws. Positioning plates are fixedly provided at both ends of the transverse frame steel sections, and positioning holes that are compatible with the positioning plates are opened on the vertical frame steel sections, and the positioning plates pass through the positioning holes for positioning.

[0008] Preferably, the two groups of vertical frame steels located in the same vertical frame are arranged vertically, and a groove for accommodating the thermal insulation strip is formed between the two groups of vertical frame steels.

[0009] Preferably, the door leaf includes two layers of interior panels arranged in parallel, edge strips fixedly arranged in the circumferential direction of the two layers of the interior panels, and a composite thermal insulation and fireproof layer arranged between the two layers of the interior panels, and a fireproof expansion strip is clamped in the edge strip.

[0010] Preferably, the composite thermal insulation and fireproof layer includes a thermal insulation layer and fireproof layers arranged on both sides of the thermal insulation layer, and a steel plate is arranged between the thermal insulation layer and the fireproof layer on the outdoor side.

[0011] Preferably, the thermal insulation layer is any one of graphite polystyrene board or magnesium oxide board, the fireproof layer is any one of straw fireproof board or multi-layer composite fireproof board, and the edge strip is polyurethane edge strip.

[0012] Preferably, three seals are provided between the door frame and the door leaf and are divided into a first rubber strip, a second rubber strip and a third rubber strip; the first rubber strip is arranged between the thermal insulation strip and the steel section on the indoor side and abuts against the interior decoration panel on the indoor side; the second rubber strip is arranged between the thermal insulation strip and the steel section on the outdoor side and abuts against the edge strip; the third rubber strip is arranged on the outdoor side of the edge strip and abuts against the steel section on the indoor side.

[0013] Preferably, a lock tongue is fixedly provided on the door leaf away from the hinge side, the lock tongue is connected to a transmission device, and a lock seat adapted to the lock tongue is provided on the door frame.

[0014] The present invention discloses the following technical effects: the present invention forms multiple broken bridges between fixed connecting parts and reinforced pull tabs by changing the structure of the horizontal frame and the vertical frame in the door frame, and increases the strength and stability of the door frame by reinforcing the pull tabs. While meeting the door frame stiffness requirements, the present application adopts large-area broken bridges to make the door frame have good thermal insulation performance, while also having good anti-theft and fire prevention performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the high thermal insulation door of the present invention;

[0017] Figure 2 This is a schematic diagram of the door frame structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the frame structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the horizontal frame structure of the present invention;

[0020] Figure 5 for Figure 1 1.1 Schematic diagram of node structure;

[0021] Figure 6 for Figure 1 1.2 Node structure diagram;

[0022] Figure 7 for Figure 1 1.3 Node structure diagram;

[0023] Figure 8 for Figure 1 1.4 Schematic diagram of the node structure.

[0024] Among them, 1 is the door frame, 11 is the vertical frame, 12 is the horizontal frame, 13 is the insulation strip, 101 is the steel section, 102 is the fixed connection part, 103 is the reinforcement pull tab, 104 is the thermal break hole, 105 is the thermal break, 111 is the vertical frame steel section, 112 is the horizontal frame steel section, 113 is the angle screw, 114 is the positioning piece, 115 is the groove, 2 is the door leaf, 21 is the interior panel, 22 is the edge strip, 23 is the fireproof expansion strip, 24 is the insulation layer, 25 is the fireproof layer, 26 is the steel plate, 3 is the hinge, 41 is the first strip, 42 is the second strip, 43 is the third strip, 51 is the lock tongue, 52 is the transmission, and 53 is the lock seat. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figure 1-8The present invention provides a new type of thermal insulation door, comprising a door frame 1, a door leaf 2 arranged inside the door frame 1, and a hinge 3 rotatably connected between the door frame 1 and the door leaf 2. The door frame 1 comprises two groups of vertical frames 11 arranged in parallel and horizontal frames 12 fixedly arranged at the upper and lower ends of the two groups of vertical frames 11. The vertical frame 11 and the horizontal frame 12 both comprise two groups of steel sections 101 and several groups of fixed connectors 102 and reinforcement tabs 103 fixedly connected between the two groups of steel sections 101. The reinforcement tab 103 is arranged on the side of the door frame 1 close to the door opening, the fixed connector 102 is arranged on the side of the door frame 1 close to the door leaf 2, the fixed connectors 102 are arranged at intervals, and several groups of thermal insulation holes 104 and / or mounting holes are opened on the reinforcement tab 103; the vertical frame 11 and the horizontal frame 12 are fixedly provided with an insulation strip 13 on the side close to the room. The insulation strip 13 can be made of door frame wood or other non-metallic insulation strips of fireproof materials with low K value. The present invention changes the structure of the horizontal frame 12 and the vertical frame 11 in the door frame 1, forming multiple thermal break bridges between the fixed connectors 102 and the reinforcement tabs 103. Furthermore, the vertical frame 11 and the horizontal frame 12 are all steel structures. The vertical frame 11 and the horizontal frame 12 are an integrated structure with the fixed connector 102. Punching is used to form multiple thermal break bridges, and the door frame profile is formed by bending, welding, and other methods. The reinforcement tabs 103 are used to increase the strength and stability of the door frame 1. This structure is connected vertically through horizontally, with the corners positioned using positioning holes and positioning tabs, and then fastened with screws. By reinforcing the tabs 103, the door frame strength and stability are increased. While meeting the rigidity requirements of the door frame 1, the present invention uses large-area thermal break bridges to provide the door frame 1 with good thermal insulation performance, while also having good anti-theft and fireproof properties. In a further optimized solution, the fixed connector 102 is a bracket plate, adjacent fixed connectors 102 are arranged in an eight-shaped pattern, and adjacent fixed connectors 102 are arranged at intervals to form a thermal break bridge 105 .

[0028] To further optimize the solution, the steel section 101 is divided into vertical frame steel 111 and horizontal frame steel 112. Adjacent vertical frame steel 111 and horizontal frame steel 112 are fixedly connected by corner screws 113. Positioning pieces 114 are fixed at both ends of the horizontal frame steel 112. Positioning holes that match the positioning pieces 114 are opened on the vertical frame steel 111. The positioning pieces 114 pass through the positioning holes for positioning. This application adopts a vertical through horizontal top connection method, with the corners positioned through the positioning holes and positioning pieces 114, and then fastened with screws.

[0029] A further optimized solution is that the two groups of vertical frame steels 111 located in the same vertical frame 11 are arranged vertically, that is, the long side of one vertical frame steel 111 is perpendicular to the short side of the other vertical frame steel 111, arranged into an L-shaped structure, and a groove 115 for accommodating the thermal insulation strip 13 is formed between the two groups of vertical frame steels 111.

[0030] In a further optimized solution, the door leaf 2 comprises two parallel layers of interior panels 21, edge trim strips 22 fixedly arranged circumferentially between the two layers of interior panels 21, and a composite thermal insulation and fireproofing layer disposed between the two layers of interior panels 21. Fire-resistant expansion strips 23 are secured within the edge trim strips 22. The composite thermal insulation and fireproofing layer ensures the thermal insulation and fireproofing properties of the door leaf 2. The two layers of interior panels 21 are combined to form the main structure of the door leaf, while the circumferential edge trim strips 22 provide edge sealing, forming a complete door leaf 2.

[0031] A further optimized solution is that the composite thermal insulation and fireproofing layer includes an insulation layer 24 and fireproofing layers 25 disposed on both sides of the insulation layer 24. A steel plate 26 is disposed between the insulation layer 24 and the fireproofing layer 25 on the outdoor side. The insulation layer 24 is either a graphite polystyrene board or a magnesium oxide board, the fireproofing layer 25 is either a straw fireproofing board or a multi-layer composite fireproofing board, and the edge trim 22 is a polyurethane edge trim.

[0032] A further optimized solution provides three seals between the door frame 1 and the door leaf 2, comprising a first seal 41, a second seal 42, and a third seal 43. The first seal 41 is positioned between the insulation strip 13 and the steel section 101 on the interior side, and abuts the interior trim panel 21 on the interior side. The second seal 42 is positioned between the insulation strip 13 and the steel section 101 on the exterior side, and abuts the trim strip 22. The third seal 43 is positioned on the exterior side of the trim strip 22 and abuts the steel section 101 on the interior side. The first, second, and third seals 41, 42, and 43 are either or both fire-retardant expansion seals and flame-retardant sealing seals. The fire-retardant expansion seals prevent smoke and flames from entering through the door gap, while the flame-retardant sealing seals provide both flame retardancy and sealing properties, further ensuring the door's flame retardancy, sealing, and thermal insulation properties, ensuring the airtightness of the entire highly insulated door.

[0033] To further optimize the solution, a lock tongue 51 is fixedly provided on the door leaf 2 on the side away from the hinge 3, and the lock tongue 51 is connected to a transmission device 52. A lock seat 53 adapted to the lock tongue 51 is provided on the door frame 1. The lock tongue 51 is controlled by the transmission device 52 to cooperate with the lock seat 53 so that the door has a locking function, thereby improving the safety of the door body.

[0034] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A new type of thermal insulation steel door, comprising a door frame (1), a door leaf (2) arranged inside the door frame (1), and a hinge (3) rotatably connected between the door frame (1) and the door leaf (2), characterized in that: The door frame (1) comprises two groups of vertical frames (11) arranged in parallel and transverse frames (12) fixedly arranged at the upper and lower ends of the two groups of vertical frames (11); the vertical frames (11) and transverse frames (12) each comprise two groups of section steels (101) and a plurality of groups of fixed connectors (102) and reinforcement tabs (103) fixedly connected between the two groups of section steels (101); the reinforcement tabs (103) are arranged on the side of the door frame (1) close to the door opening; the fixed connectors (102) are arranged on the side of the door frame (1) close to the door leaf (2); the fixed connectors (102) are arranged at intervals; the reinforcement tabs (103) are provided with a plurality of groups of thermal break holes (104) and / or mounting holes; the vertical frames (11) and transverse frames (12) are fixedly provided with heat insulation strips (13) on the side close to the interior of the room; The fixed connection member (102) is a bracket plate, adjacent fixed connection members (102) are arranged in an eight-shaped pattern, and adjacent fixed connection members (102) are arranged at intervals to form a broken bridge (105); The section steel (101) is divided into vertical frame section steel (111) and horizontal frame section steel (112). The adjacent vertical frame section steel (111) and horizontal frame section steel (112) are fixedly connected by angle screws (113). Positioning pieces (114) are fixedly provided at both ends of the horizontal frame section steel (112). Positioning holes adapted to the positioning pieces (114) are opened on the vertical frame section steel (111). The positioning pieces (114) penetrate the positioning holes for positioning. Two groups of vertical frame steels (111) located in the same vertical frame (11) are arranged vertically, and a groove (115) for accommodating the thermal insulation strip (13) is formed between the two groups of vertical frame steels (111); The door leaf (2) comprises two layers of interior panels (21) arranged in parallel, an edge trim strip (22) fixedly arranged in the circumferential direction of the two layers of the interior panels (21), and a composite heat-insulating fireproof layer arranged between the two layers of the interior panels (21), wherein a fireproof expansion rubber strip (23) is clamped in the edge trim strip (22); The composite heat-insulating and fire-proofing layer comprises a heat-insulating layer (24) and fire-proofing layers (25) arranged on both sides of the heat-insulating layer (24), and a steel plate (26) is arranged between the heat-insulating layer (24) and the fire-proofing layer (25) on the outdoor side; Three seals are provided between the door frame (1) and the door leaf (2), and are divided into a first seal strip (41), a second seal strip (42) and a third seal strip (43); the first seal strip (41) is arranged between the heat insulation strip (13) and the steel section (101) on the indoor side and abuts against the interior decoration panel (21) on the indoor side; the second seal strip (42) is arranged between the heat insulation strip (13) and the steel section (101) on the outdoor side and abuts against the edge trim strip (22); the third seal strip (43) is arranged on the outdoor side of the edge trim strip (22) and abuts against the steel section (101) on the indoor side.

2. The novel thermal insulation steel door according to claim 1 is characterized by: The thermal insulation layer (24) is any one of a graphite polystyrene board or a magnesium oxide board, the fireproof layer (25) is any one of a straw fireproof board or a multi-layer composite fireproof board, and the edge strip (22) is a polyurethane edge strip.

3. The novel thermal insulation steel door according to claim 1 is characterized by: A lock tongue (51) is fixedly provided on the door leaf (2) at a side away from the hinge (3), the lock tongue (51) is connected to a transmission (52), and a lock seat (53) adapted to the lock tongue (51) is provided on the door frame (1).

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