Quickly-assembled door frame broken bridge connecting structure

Abstract

The utility model discloses a door frame broken bridge connecting structure of quick assembly, including load-bearing main frame, decoration auxiliary frame, thermal insulation broken bridge and locking screw, thermal insulation broken bridge is fixed between load-bearing main frame and decoration auxiliary frame through locking screw, thermal insulation broken bridge close to the bottom of the inner side of door leaf is provided with buckle groove, and the buckle groove is provided with the locking screw. The side, opposite to the buckle groove, of the heat insulation broken bridge is further provided with a connecting protrusion in a protruding mode, a buckle piece used for being fixedly connected with the decoration auxiliary frame is arranged in the buckle groove, the locking screw penetrates through the connecting protrusion and is fixedly connected into the buckle piece, and a sealing groove is formed among the buckle piece, the connecting protrusion and the bearing main frame. The door frame broken bridge connecting structure is reasonable in design, rapid and convenient assembly can be achieved, the strength is reliable after assembly, no exposed screws exist, and the aesthetic feeling of a product can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of door frame processing, in particular to a quickly assembled door frame thermal break connection structure. Background Art

[0002] As a key component of passive buildings (nearly zero-energy buildings and zero-energy buildings), passive doors require high airtightness and low thermal insulation as key performance indicators. To address these issues, a common design approach involves effectively insulating the door frame to prevent heat conduction. Simultaneously, the door frame tongue and groove are designed with a multi-tongue structure to ensure airtightness, significantly reduce air convection, and further block heat conduction, resulting in a passive door product that meets passive building performance requirements. Achieving these two key performance characteristics hinges on the selection of thermal insulation materials, the combination and connection of door frame components, the selection and installation of seals, and the adjustable frame and sash components. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the existing technology and to propose a door frame thermal break structure with a simple structure, reasonable design, quick and convenient assembly, reliable strength after assembly, and no exposed screws, which can effectively improve the beauty of the product.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A quick-assembled door frame thermal break connection structure includes a load-bearing main frame, a decorative sub-frame, an insulating thermal break, and locking screws. The insulating thermal break is fixed between the load-bearing main frame and the decorative sub-frame by locking screws. A snap groove is provided at the bottom of the insulating thermal break near the inner side of the door leaf. A connecting protrusion is protruding from the side of the insulating thermal break opposite to the snap groove. A snap member for fixing the decorative sub-frame is provided in the snap groove. The locking screw passes through the connecting protrusion and is fixedly connected in the snap member. A sealing groove is formed between the snap member, the connecting protrusion and the load-bearing main frame, and a composite sealing member is fitted in the sealing groove.

[0006] Preferably, the composite sealing member is an airbag sealing strip, which includes an airbag sealing portion and a flap sealing portion.

[0007] Preferably, the load-bearing main frame is formed by bending cold-rolled steel plates to have a main frame edging wrapped around the thermal insulation bridge, the main frame edging thickness is greater than 1.5 mm, and the load-bearing main frame is fixed to the thermal insulation bridge near the outer side of the wall by locking screws.

[0008] Preferably, the decorative sub-frame is formed by bending a cold-rolled steel plate to form a sub-frame edge wrapped with a heat-insulating broken bridge, and the thickness of the sub-frame edge is greater than 1.5 mm.

[0009] Preferably, the thermal insulation bridge is made of at least four layers of flame-retardant solid wood.

[0010] Preferably, a hinge assembly is provided on the load-bearing main frame, and the hinge assembly includes a hinge base fixed on the load-bearing main frame and a door hinge and a clamping block matched on the hinge base, and the hinge base is provided with an adjusting screw for adjusting the door hinge.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This practical and quick-assembled door frame thermal break connection structure forms an effective connection combination between the load-bearing main frame and the decorative sub-frame through connecting clips and locking screws and the thermal insulation thermal break. The thermal break connection structure can also achieve high air tightness and low thermal insulation performance through composite seals, and can be assembled quickly and conveniently. After assembly, the strength is reliable and there are no exposed screws, which improves the beauty of the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a quick-assembled door frame broken bridge connection structure of the utility model;

[0014] Figure 2 for Figure 1 Cross-sectional view in the AA direction;

[0015] Figure 3 for Figure 2 A partial enlarged view of B. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0017] See also Figures 1 to 3A quick-assembled door frame thermal break connection structure includes a load-bearing main frame 1, a decorative sub-frame 2, a thermal insulation bridge 3, and a locking screw 4. The thermal insulation bridge 3 is fixed between the load-bearing main frame 1 and the decorative sub-frame 2 by the locking screw 4. A buckle groove 31 is provided at the bottom of the thermal insulation bridge 3 near the inner side of the door leaf 100. A connecting protrusion 32 is protruded on the side of the thermal insulation bridge 3 opposite to the buckle groove 31. A buckle 5 for fixing the decorative sub-frame 2 is provided in the buckle groove 31. The locking screw 4 passes through the connecting protrusion 32 and is fixedly connected to the buckle 5. The buckle 5, the connecting protrusion 32 and the load-bearing A sealing groove 6 is formed between the main frames 1, and a composite seal 7 is fitted in the sealing groove 6. First, one end of the decorative sub-frame 2 wraps the thermal insulation bridge 3, and the other end is fixed by a snap fastener 5, without the need to lock it separately with the thermal insulation bridge 3. Then the load-bearing main frame 1 passes through the connecting protrusion 32 through the locking screw 4 and is fixed in the snap fastener 5, thereby completing an effective connection combination between the three. The thermal insulation bridge connection structure can also achieve high air tightness and low thermal insulation performance through the composite seal 7, and can be assembled quickly and conveniently. The strength after assembly is reliable, and there are no exposed screws, thereby improving the beauty of the door frame.

[0018] The composite seal 7 is an airbag-type sealing strip, which includes an airbag sealing portion 71 and a wing sealing portion 72. The composite sealing strip 7 adopts a composite fire-proof EPDM sealing strip. One sealing strip has an airbag sealing portion 71 and a wing sealing portion 72 to achieve the effect of two sealing strips, and also has fire-proof expansion capability. It has good fire-proof effect and can effectively block sound waves from propagating from the gap between the edges of the door leaf and the door frame.

[0019] The load-bearing main frame 1 is made of cold-rolled steel plate and bent to form a main frame edge 11 that wraps the thermal insulation bridge. The thickness of the main frame edge 11 is greater than 1.5 mm. The outer side of the load-bearing main frame 1 close to the wall is fixed to the thermal insulation bridge 3 by locking screws 4.

[0020] The decorative sub-frame 2 is formed by bending a cold-rolled steel plate to form a sub-frame edge 21 that wraps the thermal insulation bridge. The thickness of the sub-frame edge 21 is greater than 1.5 mm.

[0021] The thermal insulation bridge 3 is made of at least four layers of flame-retardant solid wood material, and the thermal insulation bridge 3 ensures that its thermal conductivity is very low and the fireproof effect is good.

[0022] A hinge assembly 8 is provided on the load-bearing main frame 1, and the hinge assembly 8 includes a hinge base 81 fixed on the load-bearing main frame 1 and a door hinge 82 and a clamping block 83 matched with the hinge base 81. An adjusting screw 84 for adjusting the door hinge is provided on the hinge base 81. The clamping block 83 and the adjusting screw 84 on the hinge base 81 are matched with the position of the door hinge 82 to achieve adjustment of the frame-door gap to ensure the airtightness of the overall product during installation.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-assemble door frame thermal break connection structure, comprising a load-bearing main frame, a decorative sub-frame, a thermal break bridge, and locking screws. The thermal break bridge is fixed between the load-bearing main frame and the decorative sub-frame by locking screws, and is characterized by: A snap groove is provided at the bottom of the thermal insulation bridge near the inner side of the door leaf, and a connecting protrusion is protruding from the side of the thermal insulation bridge opposite to the snap groove. A snap member for fixing the decorative sub-frame is provided in the snap groove, and the locking screw passes through the connecting protrusion and is fixedly connected in the snap member. A sealing groove is formed between the snap member, the connecting protrusion and the load-bearing main frame, and a composite sealing member is matched in the sealing groove.

2. The quick-assembly door frame thermal break connection structure according to claim 1, characterized in that: The composite sealing component is an airbag sealing strip, which includes an airbag sealing portion and a wing sealing portion.

3. The quick-assembly door frame thermal break connection structure according to claim 1, characterized in that: The load-bearing main frame is formed by bending cold-rolled steel plates and has a main frame edging wrapped with a thermal insulation bridge. The thickness of the main frame edging is greater than 1.5 mm. The load-bearing main frame is fixed to the thermal insulation bridge near the outer side of the wall by locking screws.

4. The quick-assembly door frame thermal break connection structure according to claim 1, characterized in that: The decorative sub-frame is formed by bending a cold-rolled steel plate and has a sub-frame edge wrapped with a heat-insulating broken bridge, and the thickness of the sub-frame edge is greater than 1.5 mm.

5. A quick-assembly door frame thermal break connection structure according to any one of claims 1 to 4, characterized in that: The thermal insulation bridge is made of at least four layers of flame-retardant solid wood.

6. A quick-assembly door frame thermal break connection structure according to any one of claims 1 to 4, characterized in that: The load-bearing main frame is provided with a hinge assembly, which includes a hinge base fixed on the load-bearing main frame and a door hinge and a clamping block matched on the hinge base. The hinge base is provided with an adjusting screw for adjusting the door hinge.

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