Aluminum profile door body

By using aluminum profile door leaf frame and door frame with 45°±1° connection end face, 90°±2° connection angle design and corner bracket connection, the problems of steel plate door frame springback and installation difficulty are solved, achieving stable connection and efficient installation, and improving the aesthetics and safety of the door frame.

CN223676103UActive Publication Date: 2025-12-16GUANGZHOU AP TENON PRECISION ELECTRONICS CO LTD
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Patent Information

Application Number
CN202423008580.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-12-16
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

Steel plate door frames are prone to springback, cracks, and indentations during the forming process, resulting in unstable dimensions, affecting installation accuracy and safety, and making installation difficult and labor-intensive.

Method used

The door leaf and door frame are made of aluminum profiles. The connection end face is designed with 45°±1° and the connection angle is 90°±2°. Combined with corner bracket connectors and positioning grooves, a stable connection is achieved. Anti-bulging support and elastic rubber strips are used to improve installation accuracy and safety.

Benefits of technology

Ensuring the stability and installation precision of the door frame reduces labor intensity and installation difficulty, while improving aesthetics and safety.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model belongs to the technical field of doors and windows, and particularly relates to an aluminum profile door body. The aluminum profile door body is composed of an aluminum profile combined door leaf and a door frame which are connected through hinges. The door frame body is composed of a door frame upper frame, a door frame left frame and a door frame right frame which are made of aluminum profiles, the connecting end faces of the three frames are 45 + / -1 degrees, and the three frames are sequentially connected to form the door frame body with the angle of 90 + / -2 degrees. The combined door leaf comprises a door leaf frame body, a front door plate and a rear door plate, the door leaf frame body is composed of four aluminum profile frames with the same section shape, the connecting end face of the door leaf frame body is also 45 + / -1 degrees, and the connecting angle of the door leaf frame body is 90 + / -2 degrees. By means of the design, the weight of the door frame is reduced, meanwhile, strength and durability are kept, and installation difficulty is reduced. By arranging the corner connector installation grooves and the door frame corner connectors, accurate connection of all the frames of the door frame is achieved, the problem that the size of a traditional steel plate door frame is unstable is solved, and installation accuracy is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to door and window technical field, concretely relates to an aluminium profile door body. BACKGROUND

[0002] In the current construction industry, steel plate door frame is widely used because of its high strength and good durability. Generally speaking, the forming process of steel plate door frame is as follows: first, according to the design requirements, the steel plate is cut into appropriate size and shape. Then, through the leveling equipment to ensure the surface of the steel plate is flat. Then, the steel plate is bent into the shape of the door frame by cold bending forming machine or stamping machine, and is spliced and welded to form a complete door frame structure. Finally, the welded door frame is inspected, trimmed and polished to improve its size accuracy, shape and surface quality. If necessary, surface treatment such as spraying or painting will be carried out to enhance its corrosion resistance and aesthetics. More specific forming process can also refer to the document of Chinese patent CN104475505A, the patent name is a bending forming method of security door frame.

[0003] However, in the forming process of steel plate door frame, due to the particularity of steel plate material, problems such as springback, cracks and indentation are prone to occur during bending. Springback will cause the size of the door frame to be unstable, affecting the installation accuracy; cracks will reduce the strength and safety of the door frame; indentation will affect the aesthetics of the door frame. In the installation process, the weight and size error of the steel plate door frame make the installation more difficult. This traditional installation method not only has high labor intensity, but also has high safety risk, and the installation quality is also unstable. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art steel plate door body, the utility model provides an aluminium profile door body, which comprises an aluminium profile combined door leaf and an aluminium profile door frame, the aluminium profile combined door leaf and the aluminium profile door frame are rotationally connected through a hinge, the door frame body is made of aluminium profile, the door frame body comprises a door frame upper edge frame, a door frame left edge frame and a door frame right edge frame with the same cross section, the connecting end faces of the door frame upper edge frame, the door frame left edge frame and the door frame right edge frame are 45°±1°, and the three are sequentially connected to form the door frame body, and the connecting angle of the edge frames of the door frame body is 90°±2°.

[0005] The aluminium profile combined door leaf comprises a door leaf frame body, a front door plate and a rear door plate, the front door plate and the rear door plate are arranged in front of and behind each other, the door leaf frame body is sleeved on the outer periphery of the front door plate and the rear door plate, the door leaf frame body is formed by four door leaf edge frames which are sequentially connected, the four door leaf edge frames of the door leaf frame body are aluminium profiles with the same cross section shape, the connecting end faces of the four door leaf edge frames are 45°±1°, and the connecting angle of the edge frames of the door leaf frame body is 90°±2°.

[0006] Preferably, the door leaf frame body comprises an inner frame body and an outer frame body made of aluminum profile, the inner frame body and the outer frame body are respectively provided with frame body positioning grooves and frame body positioning blocks along the length direction of the profile, the inner frame body and the outer frame body are fixedly installed together through the frame body positioning grooves and the frame body positioning blocks, the inner frame body is located inside the outer frame body, and the front end and the rear end of the inner frame body and the outer frame body respectively form door panel clamping groove.

[0007] Preferably, the outer peripheral edge of the front door panel and the rear door panel forms a clamping edge portion, the clamping edge portion is recessed inward compared to the middle portion of the door panel, the thickness of the clamping edge portion is smaller than the thickness of the middle portion of the door panel, and the thickness of the clamping edge portion is matched with the door panel clamping groove.

[0008] Preferably, the cavity between the door leaf frame body, the front door panel and the rear door panel forms a door core accommodating cavity, and the door core accommodating cavity is used to fill a door core.

[0009] The front door panel and the rear door panel are also provided with an anti-bulging support located in the door core accommodating cavity, and the front side and the rear side of the anti-bulging support are fixedly connected with the front door panel and the rear door panel respectively.

[0010] The anti-bulging support is provided with glue accommodating grooves with openings facing outward on the front side and the rear side respectively, and the glue accommodating grooves are used to accommodate glue, and the front door panel and the rear door panel are fixed to the anti-bulging support through the glue accommodating grooves and the glue respectively.

[0011] Preferably, the inner frame body is also provided with corner code connecting grooves around the rectangle on the inner side of the front end and the rear end respectively, the inner frame body is provided with corner code connecting pieces at the corner of the rectangle, and the corner code connecting pieces are installed in the corner code connecting grooves, and the four inner frame aluminum profiles are fixedly connected through the cooperation of the corner code connecting pieces and the corner code connecting grooves.

[0012] Preferably, the bottom of the door frame body is provided with a door sill connecting hole for connecting with a door sill body, the door sill body is provided with a door frame connecting hole along the left-right direction, and the door frame connecting hole is provided corresponding to the door sill connecting hole.

[0013] The door sill body is also provided with a glue strip mounting groove for mounting an elastic glue strip, the glue strip mounting groove faces the door leaf, the elastic glue strip protrudes from the side of the door sill body facing the door leaf, and the elastic glue strip is used to abut against the door leaf.

[0014] Preferably, it further comprises a decorative door pocket, which comprises a door pocket upper frame, a door pocket left frame and a door pocket right frame made of aluminum profile and having the same profile section, the door pocket upper frame, the door pocket left frame and the door pocket right frame are sequentially and fixedly connected to each other through door pocket corner codes, and all of them are provided with door pocket mounting grooves matched with the door pocket corner codes.

[0015] Preferably, the aluminum profile door frame further comprises a door header body, which is arranged between the lower part of the door pocket upper frame and the upper part of the door frame upper frame, and is fixed to the upper end of the door frame upper frame and the lower end of the door pocket upper frame through a connecting bottom plate.

[0016] Preferably, the door frame upper frame, the door frame left frame and the door frame right frame are all provided with corner code mounting grooves extending along the length direction of the profile, the corner code mounting grooves of the three are sequentially connected, the corner code mounting grooves are inserted with door frame corner codes at the connection positions, and the door frame upper frame, the door frame left frame and the door frame right frame are sequentially and fixedly connected to each other through the door frame corner codes and the corner code mounting grooves.

[0017] The door frame corner code comprises a first mounting section and a second mounting section which are at an angle to each other, the angle between the first mounting section and the second mounting section is 90°±2°, the first mounting section and the second mounting section can be respectively inserted into two corner code mounting grooves which are connected to each other, and the first mounting section and the second mounting section are matched with the corner code mounting grooves, the connecting end surface of the door frame upper frame, the door frame left frame and the door frame right frame is 45°±1°, and the connecting angle of the door frame upper frame, the door frame left frame and the door frame right frame is 90°±2°.

[0018] Preferably, the door frame corner code is internally hollow, the middle parts of the first mounting section and the second mounting section are both provided with corner code reinforcing ribs along the cross section direction, and the connecting position of the first mounting section and the second mounting section is also provided with a reinforcing rib; the door frame corner code is provided with a corner code connecting hole, which is used for fixing the door frame corner code to the door frame body through a fastener. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. The embodiments disclosed in the drawings are intended to illustrate but not to limit the present application, and the emphasis is on showing the main idea of the present application.

[0020] Figure 1 Structure schematic view of a door leaf structure provided for an embodiment;

[0021] Figure 2 For Figure 1 Structure schematic view from another perspective;

[0022] Figure 3For Figure 2 A-A sectional view in the middle;

[0023] Figure 4 For Figure 3 Partial enlarged structural schematic view in the top;

[0024] Figure 5 For Figure 3 Partial enlarged structural schematic view in the anti-bulging support;

[0025] Figure 6 For Figure 3 Structural schematic view in the bottom;

[0026] Figure 7 For Figure 2 B-B sectional view in the middle;

[0027] Figure 8 For Figure 7 Partial enlarged structural schematic view in the right end;

[0028] Figure 9 For Figure 7 Partial enlarged structural schematic view in the left end;

[0029] Figure 10 Structural schematic view of the cooperation of the adjacent two sections of the inner frame body through the corner code connecting piece and the corner code connecting groove;

[0030] Figure 11 Structural schematic view of the cooperation of the inner frame body and the anti-bulging support through the corner code connecting piece and the corner code connecting groove;

[0031] Figure 12 Front view of the aluminum profile door frame provided by the embodiment;

[0032] Figure 13 Perspective view of the aluminum profile door frame provided by the embodiment;

[0033] Figure 14 For Figure 12 Schematic view from the rear side in the middle;

[0034] Figure 15 For Figure 14 Partial enlarged view of the upper end of the aluminum profile door frame in the middle;

[0035] Figure 16 For Figure 12 Top view of the middle;

[0036] Figure 17 For Figure 12 C-C sectional view in the middle;

[0037] Figure 18 For Figure 17 Partial enlarged view of the right end in the middle;

[0038] Figure 19 for Figure 12 DD section view in the middle;

[0039] Figure 20 for Figure 19 A magnified view of the right end of the image;

[0040] Figure 21 for Figure 12 EE section view;

[0041] Figure 22 for Figure 21 A magnified view of the top section;

[0042] Figure 23 for Figure 21 A magnified view of the bottom part of the image;

[0043] Figure 24 for Figure 16 FF section view;

[0044] Figure 25 for Figure 24 A magnified view of the top section;

[0045] Figure 26 for Figure 25 A magnified view of the right end of the image.

[0046] Attached diagram labels: Door frame 100, Inner frame 101, Outer frame 102, Frame positioning groove 103, Frame positioning block 104, Back teeth 105, Positioning groove 106, Positioning protrusion 107, Frame reinforcing rib 108, Screw mounting groove 109, Door panel edge groove 110, Adhesive groove 111, Door core receiving cavity 112, Decorative cover 113, Cover buckle 114, Cover groove 115, Corner bracket connector 116, Corner bracket connecting groove 117, Edge part 118, Hinge connecting hole 120, Anti-bulging support 121, Connecting groove wall 122, Front door panel 123, Rear door panel 124.

[0047] Door frame body 200, door frame upper frame a20, door frame left frame b20, door frame right frame c20, hinge installation position 201, corner code installation groove 202, door sill connecting hole 203, corner code installation hole 204, door frame corner code 210, first installation section 211, second installation section 212, corner code reinforcing rib 213, corner code connecting hole 214, reinforcing connecting part 215, frame body avoiding position 216, decorative door pocket 220, door pocket upper frame a22, door pocket left frame b22, door pocket right frame c22, door pocket corner code 221, door pocket installation groove 222, screw installation position 223, door pocket decorative cover 224, positioning clamping groove 225, door header body 230, connecting bottom plate 231, door sill body 240, door frame connecting hole 241, adhesive tape installation groove 242. DETAILED DESCRIPTION

[0048] In order to facilitate the understanding of the present application, the following will be described in more detail with reference to the relevant drawings.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing specific embodiments only and is not intended to be limiting of the present application. As used in this description, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0050] Reference should be made to Figures 1 to 11 In one aspect, a door leaf frame body 100 is provided, which comprises an inner frame body 101 and an outer frame body 102 made of aluminum profiles, the inner frame body 101 and the outer frame body 102 are respectively provided with frame body positioning grooves 103 and frame body positioning blocks 104 along the length direction of the profiles, the inner frame body 101 and the outer frame body 102 are fixedly installed together through the frame body positioning grooves 103 and the frame body positioning blocks 104, the inner frame body 101 is located inside the outer frame body 102, and the front end and the rear end of both the inner frame body 101 and the outer frame body 102 form door panel clamping groove 110.

[0051] Reference should be made to Figures 3 to 11 In a preferred embodiment, the inner frame body 101 is four inner frame aluminum profiles with the same cross-sectional shape, and the inner frame connecting end faces at both ends of each inner frame aluminum profile are 45°±1°, the four inner frame aluminum profiles are sequentially connected through the inner frame connecting end faces to form a rectangle; the outer frame body 102 is four aluminum profiles with the same cross-sectional shape, and the outer frame connecting end faces at both ends of each outer frame aluminum profile are 45°±1°, the four outer frame aluminum profiles are sequentially connected through the outer frame connecting end faces to form a rectangle, and the outer frame body 102 is fixed to the outer periphery of the inner frame body 101 through the frame body positioning grooves 103 and the frame body positioning blocks 104.

[0052] Reference should be made to Figures 3 to 11, the inner frame body 101 and the outer frame body 102 are adapted to each other, and the inner frame connecting end face and the outer frame connecting end face are adapted to each other. The inner frame body 101 and the outer frame body 102 can be cut by 45°. Generally, the inner frame body 101 and the outer frame body 102 of the aluminum profile are cut by a cutting machine, and the size is very accurate. Four aluminum profiles are sequentially built to form a rectangular door leaf frame body 100 with a 90° corner. Further, the fixing member is used to fix each inner frame aluminum profile and each outer frame aluminum profile, so that the rectangular door leaf frame body 100 can be used for a long time and still maintain 90°. The fixing member can adopt a screw or the following angle code connecting piece 116 and the like. Through the above setting, the steel plate material has high bending resistance in the bending process of the steel door leaf frame body, and cannot be installed to be bent into a rectangular door leaf frame body 100 with a 90° corner. Generally, the door leaf frame body 100 formed by bending the steel plate material has an error of 90°±3°. The disadvantage of the terminal product is that the door leaf frame body 100 will tilt to one side during long-term use, which will cause the door leaf frame body 100 to contact the door frame, thereby affecting the use.

[0053] Please refer to Figures 3 to 11 In the preferred embodiment, the inner frame body 101 is further provided with an angle code connecting groove 117 around the rectangle on the inner side of the front and rear ends. The inner frame body 101 is provided with an angle code connecting piece 116 at the corner of the rectangle, and the angle code connecting piece 116 is installed in the angle code connecting groove 117. The four inner frame aluminum profiles are fixed to each other through the cooperation of the angle code connecting piece 116 and the angle code connecting groove 117.

[0054] The cooperation of the angle code connecting piece 116 and the angle code connecting groove 117 achieves fixation, which is convenient for installation and can optimize the process.

[0055] Please refer to Figures 8 to 9 In the preferred embodiment, the door plate clamping groove 110 is used for clamping the front door plate 123 and the rear door plate 124. The door plate clamping groove 110 is formed by inwardly bending the front end and the rear end of the outer frame body 102.

[0056] Inward bending refers to bending inwardly to the inside of the door leaf. The front end and the rear end of the outer frame body 102 are inwardly bent to form two door plate clamping grooves 110 at the front end and the rear end. The clamping groove is clamped to the front door plate 123 and the rear door plate 124, which is convenient for installation and improves installation efficiency. In addition, the clamping groove is formed by inwardly bending the front end and the rear end of the outer frame body 102, which is convenient for one-piece forming of the outer frame body 102 and the like.

[0057] Please refer to Figures 4 to 5 and Figure 8 In the preferred embodiment, the frame positioning block 104 is integrally arranged on the outer side of the inner frame body 101, and the frame positioning block 104 extends outwardly. The frame positioning groove 103 is arranged on the inner side of the outer frame body 102, and the frame positioning block 104 is clamped in the frame positioning groove 103.

[0058] The positioning block is located on the outer side of the inner frame body 101 and is integrally formed with the inner frame body 101, and the frame positioning groove 103 is located on the inner side of the outer frame body 102 and is integrally formed with the outer frame body 102. When the outer frame body 102 and the outer frame body 102 are fixed and positioned with each other, the outer frame body 102 and the outer frame body 102 of the aluminum profile are also more easily formed. On the other hand, through the above-mentioned arrangement, it is convenient to combine and install the outer frame body 102 with the inner frame body 101.

[0059] Please refer to Figures 4 to 5 In the preferred embodiment, the end face of the frame positioning groove 103 matched with the frame positioning block 104 is provided with a reverse tooth 105.

[0060] Generally, the reverse tooth 105 is arranged on the side surface of the positioning block close to the frame positioning groove 103. The reverse tooth 105 structure has a retreat prevention function, so that the connection between the two is more stable, and the aluminum profile has a certain elasticity, so that the connection stability is stronger.

[0061] In the preferred embodiment, the inner frame body 101 and the outer frame body 102 are also respectively provided with a positioning recess 106 and a positioning protrusion 107 matched with each other. The positioning recess 106 and the positioning protrusion 107 extend along the length direction of the profile, and the positioning recess 106 and the frame positioning block 104 are respectively arranged at the front side and the rear side.

[0062] The positioning recess 106 is formed by being concave inward on the outer side of the inner frame body 101, and the positioning protrusion 107 is formed by being convex inward on the inner side of the outer frame body 102. The positioning recess 106 and the positioning protrusion 107 are located on the same side of the inner frame body 101 and the outer frame body 102, and the frame positioning block 104 and the frame positioning groove 103 are located on the same side of the inner frame body 101 and the outer frame body 102. Further, the rear end of the inner frame body 101 and the outer frame body 102 is fixed and positioned, and the installation precision is improved.

[0063] Please refer to Figures 4 to 5 , and Figures 8 to 9 In the preferred embodiment, the outer side of the inner frame body 101 is also connected with a frame reinforcing rib 108, and the other end of the reinforcing rib is connected with the outer side end of the frame positioning block 104. The reinforcing rib is used to support the frame positioning block 104. The reinforcing rib is closer to the middle part of the inner frame body 101 than the frame positioning block 104. The reinforcing rib, the frame positioning block 104 and the inner part of the inner frame body 101 form a hollow triangle.

[0064] The hollow triangle can save materials, and the reinforcing rib can strengthen the structure of the frame positioning block 104, thereby strengthening the installation connection structure strength between the outer frame body 102 and the outer frame body 102.

[0065] Please refer to Figure 4 , Figure 5 and Figure 8In the preferred embodiment, the outer side of the outer frame 102 is further provided with a screw installation groove 109 extending along the length of the profile. The screw installation groove 109 is open outwardly and recessed inwardly along the outer side of the outer frame 102.

[0066] The screw installation groove 109 functions as a drill bit or a screw when drilling or installing a screw, preventing the drill bit or the screw from sliding around. The screw can pass through the outer frame 102 and the inner frame 101 along the screw installation groove 109 and further fix the two frames.

[0067] Please refer to Figure 4 , Figure 5 and Figure 8 In the preferred embodiment, the outer side of the outer frame 102 is further provided with a screw installation groove 109 extending along the length of the profile. The screw installation groove 109 is open outwardly and recessed inwardly along the outer side of the outer frame 102.

[0068] The decorative cover 113 is generally U-shaped as a whole, and the cover body buckles 114 are arranged on both sides thereof. The outer frame 102 is correspondingly provided with cover body clamping grooves 115. When the decorative cover 113 is to be installed on the outer frame 102, the cover body buckles 114 are clamped into the cover body clamping grooves 115. Through the decorative cover 113, the screws at the screw installation groove 109 are hidden, and the appearance of the door leaf frame 100 and the door leaf structure is maintained.

[0069] Please refer to Figures 1 to 11 On the other hand, an aluminum profile combined door leaf is provided, which comprises a door leaf frame 100, a front door panel 123 and a rear door panel 124. The front door panel 123 and the rear door panel 124 are arranged in front of and behind each other. The door leaf frame 100 is sleeved on the outer periphery of both the front door panel 123 and the rear door panel 124. The door leaf frame 100 comprises an inner frame 101 and an outer frame 102 made of aluminum profiles. The inner frame 101 and the outer frame 102 are respectively provided with frame positioning grooves 103 and frame positioning blocks 104 along the length of the profiles. The inner frame 101 and the outer frame 102 are fixedly installed together through the frame positioning grooves 103 and the frame positioning blocks 104. The inner frame 101 is located inside the outer frame 102. The front ends and the rear ends of both the inner frame 101 and the outer frame 102 form door panel clamping groove 110.

[0070] Please refer to Figures 8 to 9 In the preferred embodiment, the outer periphery edges of both the front door panel 123 and the rear door panel 124 form clamping edge portions 118. The clamping edge portions 118 are recessed inwardly compared to the middle portion planes of the door panels. The thickness of the clamping edge portions 118 is smaller than the thickness of the middle portions of the door panels. The thickness of the clamping edge portions 118 is adapted to the door panel clamping groove 110.

[0071] The thickness of the clamping edge part 118 is fixed and just clamped into the door plate clamping edge groove 110. Through the above setting, the front door plate 123 and the rear door plate 124 with different plate thicknesses can be equipped according to customer requirements. For example, the door plate clamping edge groove 110 is 0.8 mm, the required plate thickness of the front door plate 123 is 1.0 mm, the edge of the front door plate 123 is milled by 0.2 mm to form the clamping edge part 118 with a thickness of 0.8 mm; if the required plate thickness of the front door plate 123 is 1.2 mm, the edge of the front door plate 123 is milled by 0.4 mm to form the clamping edge part 118 with a thickness of 0.8 mm.

[0072] Please refer to Figures 7 to 9 In the preferred embodiment, the cavity between the door leaf frame 100, the front door plate 123 and the rear door plate 124 forms a door core accommodating cavity 112, and the door core accommodating cavity 112 is used to fill the door core.

[0073] The door core is one of mineral wool, polyurethane foaming material, steel plate net, polystyrene foam board, fireproof plate, honeycomb paperboard or any combination, and the door core can be filled in the door core accommodating cavity 112 to reduce the use of aluminum profiles and enrich the functions of aluminum profile combination door leaf, such as box function or sound absorption effect.

[0074] Please refer to Figures 3 to 6 In the preferred embodiment, the front door plate 123 and the rear door plate 124 are also provided with an anti-bulging support 121, which is located in the door core accommodating cavity 112, and the front side and the rear side of the anti-bulging support 121 are respectively fixedly connected with the front door plate 123 and the rear door plate 124.

[0075] The anti-bulging support 121 is provided to prevent the front door plate 123 and the rear door plate 124 from bulging forward and backward respectively, which affects the use and appearance of the door leaf.

[0076] Please refer to Figures 3 to 6 In the preferred embodiment, the anti-bulging support 121 is provided with an outwardly opening glue accommodating groove 111 on the front side and the rear side respectively, and the glue accommodating groove 111 is used to accommodate glue, and the front door plate 123 and the rear door plate 124 are fixed to the anti-bulging support 121 through the glue accommodating groove 111 and the glue respectively.

[0077] When the front door plate 123 and the rear door plate 124 are fixed to the anti-bulging support 121, the adhesive is first applied and filled in the adhesive groove 111, and then the front door plate 123 and the rear door plate 124 are respectively pressed on the front side and the rear side of the anti-bulging support 121, so as to ensure that the front door plate 123 and the rear door plate 124 are flat and fixed on the front and rear surfaces of the anti-bulging support 121, and the interval distance between the front door plate 123 and the rear door plate 124 is accurate and the required size. The adhesive groove 111 can avoid the situation that when the adhesive is applied on the front and rear surfaces of the anti-bulging support 121 during the fixing process, the front door plate 123 and the rear door plate 124 are not flat and fixed on the anti-bulging support 121 according to the expected interval distance due to the characteristics of the adhesive.

[0078] Please refer to Figures 3 to 6 In the preferred embodiment, the anti-bulging support 121 is fixedly connected between the front door plate 123 and the rear door plate 124, and the anti-bulging support 121 and the inner frame body 101 are aluminum profiles with the same cross-sectional shape. The two ends of the anti-bulging support 121 are fixedly connected to the door leaf frame body 100.

[0079] The anti-bulging support 121 and the inner frame body 101 are aluminum profiles with the same cross-sectional shape, that is, they can adopt the same profile, which reduces the investment in molding equipment and the storage of materials by manufacturers. In addition, because the anti-bulging support 121 and the inner frame body 101 can be cut from the same profile, it is convenient to concentrate the production line, and the time of the molding process section and the product assembly process section is reduced.

[0080] Please refer to Figures 3 to 6 In the preferred embodiment, the anti-bulging support 121 and the inner frame body 101 are provided with the corner code connection groove 117 and the adhesive groove 111. The two ends of the anti-bulging support 121 are respectively connected to the inner frame body 101, so that the corner code connection grooves 117 of the anti-bulging support 121 and the inner frame body 101 are connected. The corner code connection grooves 117 of the two are located at the connection position and are provided with the corner code connecting piece 116. The anti-bulging support 121 and the inner frame body 101 are fixedly connected through the corner code connecting piece 116 and the corner code connection groove 117.

[0081] The structure strength between the anti-bulging support 121 and the inner frame body 101 is ensured, and the installation and positioning are convenient. The corner code connecting piece 116 is an L-shaped component with an angle of 90°. The anti-bulging support 121 and the inner frame body 101 are provided with the adhesive groove 111. The anti-bulging support 121 and the inner frame body 101 are cut from the same aluminum profile, so as to ensure that the front door plate 123 and the rear door plate 124 are flat and accurately fixed according to the requirements. Generally, the interval distance between the front door plate 123 and the rear door plate 124 after being fixed is generally adapted to the distance between the door plate clamping groove 110 on the front and rear ends of the outer frame body 102.

[0082] Please refer to Figures 3 to 6In the preferred embodiment, the front door panel 123 is a steel or aluminum panel, and the rear door panel 124 is a steel, aluminum or wooden panel.

[0083] Through the above arrangement, the customer can flexibly replace the door panel of different material combinations according to the needs.

[0084] Please refer to Figures 1 to 11 In the preferred embodiment, the upper end, middle and lower end of the right side of the door leaf frame body 100 are provided with hinge connection holes 120, the height of the door leaf is h, and the heights of the three hinge connection holes 120 are 0.1h-0.2h, 0.65h-0.8h and 0.85h-0.95h, respectively.

[0085] The door leaf is fixed on the door frame through the hinge connection holes 120, and the height of the door leaf is the height of the door leaf frame body 100. The height of the hinge connection hole 120 at the lower end is set to be 0.1h-0.2h of the height of the door leaf, the height of the hinge connection hole 120 at the middle is set to be 0.65h-0.8h of the height of the door leaf, and the height of the hinge connection hole 120 at the upper end is set to be 0.85h-0.95h of the height of the door leaf. Through the above arrangement, the door leaf is fixed on the door frame, and is more in line with the mechanical structure.

[0086] Please refer to Figures 12 to 26 The utility model discloses a kind of aluminum profile door frames, it includes door frame body 200, door frame body 200 is made of aluminum profile, and door frame body 200 includes the door frame upper frame a20 of same profile section, door frame left frame b20 and door frame right frame c20.The door frame upper frame a20, door frame left frame b20 and door frame right frame c20 are all provided with corner brace mounting groove 202 extending along the length direction of profile, and the corner brace mounting groove 202 of three is sequentially connected, and corner brace mounting groove 202 is inserted with door frame corner brace 210 at connecting place, and the door frame upper frame a20, door frame left frame b20 and door frame right frame c20 are sequentially fixedly connected with each other by door frame corner brace 210 and corner brace mounting groove 202.Through setting corner brace mounting groove 202 and door frame corner brace 210, the accurate connection of each frame of door frame is realized, the size instability problem caused by rebound of traditional steel plate door frame is avoided, and installation precision is improved.

[0087] Please refer to Figures 24 to 26In a preferred embodiment, the door frame corner bracket 210 includes a first mounting section 211 and a second mounting section 212 that are at an angle to each other. The angle between the first mounting section 211 and the second mounting section 212 is 90°±2°. The first mounting section 211 and the second mounting section 212 can be respectively inserted into two interconnected corner bracket mounting slots 202, and both are adapted to the corner bracket mounting slots 202. The connection end face of the upper frame a20, the left frame b20, and the right frame c20 of the door frame is 45°±1°, and the connection angle of the upper frame a20, the left frame b20, and the right frame c20 is 90°±2°. The connection end face of the upper frame a20, the left frame b20, and the right frame c20 is 45°±1°. Through the insertion of the door frame corner bracket 210, the connection angle of each frame of the door frame is 90°±2°, ensuring the squareness and stability of the door frame. The interlocking design of the door frame corner bracket 210 enhances the connection strength between the various edges of the door frame, improving the overall stability of the door frame. Simultaneously, the plug-in connection method improves installation efficiency. By precisely controlling the angle between the door frame corner bracket 210 and the connecting end face of the edge, the squareness and aesthetics of the door frame are ensured, thus improving installation quality.

[0088] Please refer to Figure 21 and Figure 23 In a preferred embodiment, a threshold connection hole 203 is provided at the bottom of the door frame body 200 for connecting with the threshold body 240; the threshold body 240 is provided with a door frame connection hole 241 along the left and right directions, and the door frame connection hole 241 is provided corresponding to the threshold connection hole 203.

[0089] Please refer to Figure 21 and Figure 23 In a preferred embodiment, the threshold body 240 is further provided with a rubber strip mounting groove 242 for installing an elastic rubber strip. The rubber strip mounting groove 242 faces the door leaf, and the elastic rubber strip protrudes from the side of the threshold body 240 facing the door leaf, and the elastic rubber strip is used to abut against the door leaf. A sealing gasket is provided between the threshold body 240 and the door frame body 200, which further enhances the sealing effect of the door frame, and the elastic rubber strip can also play a buffering role.

[0090] Please refer to Figures 12 to 18In the preferred embodiment, it further comprises a decorative door pocket 220, which comprises a door pocket upper frame a22, a door pocket left frame b22 and a door pocket right frame c22 made of aluminum profile and having the same profile section, the three are sequentially and fixedly connected to each other through a door pocket corner code 221, and all are provided with a door pocket mounting groove 222 matched with the door pocket corner code 221. The setting of the decorative door pocket improves the overall appearance of the door frame and meets the higher requirements of users on the appearance of the building. Through the design of the screw mounting position 223 and the positioning clamping groove 225, the installation process of the decorative door pocket is simplified, and the installation efficiency is improved.

[0091] Please refer to Figures 14 to 15 In the preferred embodiment, the door pocket corner code 221 comprises two segments connected to each other at an angle, the angle between the two segments is 90°±2°, the two segments of the door pocket corner code 221 can be respectively inserted into two corner code mounting grooves 202 connected to each other, and the two segments are adapted to the corner code mounting grooves 202, the connecting end face of the door pocket upper frame a22, the door pocket left frame b22 and the door pocket right frame c22 is 45°±1°, and the connecting angle of the door pocket upper frame a22, the door pocket left frame b22 and the door pocket right frame c22 is 90°±2°.

[0092] Please refer to Figures 12 to 18 In the preferred embodiment, the decorative door pocket 220 is provided with a screw mounting position 223 corresponding to the door frame body 200, and the decorative door pocket 220 and the door frame body 200 are fixedly connected through a screw at the screw mounting position 223; the screw mounting position 223 is further covered with a door pocket decorative cover 224, which improves the appearance of the door frame. The decorative door pocket 220 is further provided with a positioning clamping groove 225 for positioning the door frame body 200, which ensures the accurate positioning of the door frame body 200 and the decorative door pocket 220.

[0093] Please refer to Figures 12 to 15 , Figure 20 and Figure 22 In the preferred embodiment, the aluminum profile door frame further comprises a lintel body 230, which is arranged between the lower side of the door pocket upper frame a22 and the upper side of the door frame upper frame a20, and is fixed to the upper end of the door frame upper frame a20 and the lower end of the door pocket upper frame a22 through a connecting bottom plate 231. The design of the lintel body 230 not only enhances the structural performance of the door frame, but also improves the visual effect of the building entrance and increases the beauty of the building.

[0094] Please refer to Figures 12 to 26The door frame body 200 is made of aluminum profile, and the door frame body 200 comprises a door frame upper edge frame a20, a door frame left edge frame b20 and a door frame right edge frame c20 which have the same profile section, and the door frame upper edge frame a20, the door frame left edge frame b20 and the door frame right edge frame c20 are all provided with an angle code mounting groove 202 extending along the length direction of the profile, the angle code mounting grooves 202 of the three are sequentially connected, the angle code mounting groove 202 is inserted with a door frame angle code 210 at the connection position, and the door frame upper edge frame a20, the door frame left edge frame b20 and the door frame right edge frame c20 are sequentially and fixedly connected with each other through the door frame angle code 210 and the angle code mounting groove 202; the first mounting section 211 and the second mounting section 212 can be respectively inserted into two mutually connected angle code mounting grooves 202, and the two are matched with the angle code mounting groove 202, the connecting end surface of the door frame upper edge frame a20, the door frame left edge frame b20 and the door frame right edge frame c20 is 45°±1°, and the connecting angle of the door frame upper edge frame a20, the door frame left edge frame b20 and the door frame right edge frame c20 is 90°±2°. The adoption of the aluminum profile door frame greatly reduces the weight of the door frame, improves the convenience and safety of installation. The design of the angle code mounting groove 202 makes the insertion of the door frame angle code 210 more convenient and firm, and improves the overall stability of the door frame. Thanks to the adoption of the aluminum profile, the corresponding aluminum profile of the edge frame can be accurately cut into a 45° end surface by using a cutting machine during forming, and the accurate 45° and 90° angle design ensures the overall shape and size precision of the door frame.

[0095] Please refer to Figures 12 to 26 The utility model discloses a door frame angle code 210, and the door frame angle code 210 is used for connecting two adjacent edge frames (a door frame upper edge frame a20, a door frame left edge frame b20 or a door frame right edge frame c20) of a door frame body 200, so that the edge frames of the door frame are connected in interlocking. The door frame angle code 210 comprises a first mounting section 211 and a second mounting section 212 which are connected with each other, the first mounting section 211 and the second mounting section 212 are mutually angled, and the angle is 90°±2°, so that the first mounting section 211 and the second mounting section 212 are inserted into two mutually connected door frame edge frames, and the angle of the edge frames of the door frame is 90°±2°.

[0096] Please refer to Figures 24 to 26 The door frame angle code 210 of the utility model is used for connecting two adjacent edge frames of a door frame body 200, so that the edge frames of the door frame are connected in interlocking. The door frame angle code 210 comprises a first mounting section 211 and a second mounting section 212 which are connected with each other, the first mounting section 211 and the second mounting section 212 are mutually angled, and the angle is 90°±2°. This design ensures that the edge frames of the door frame form an accurate 90° angle at the connection position, improves the overall stability and size precision of the door frame. The interlocking connection design improves the connection stability of the edge frames of the door frame, and avoids the size instability problem of the traditional steel plate door frame caused by rebound.

[0097] Please refer to Figures 24 to 26 The door frame corner brace 210 is provided with a corner brace connecting hole 214 for further fixing the door frame corner brace 210 to the door frame body 200 by fasteners such as screws.

[0098] Please refer to Figures 24 to 26 In the preferred embodiment, the door frame corner brace 210 is hollow inside, so that the middle part of both the first mounting section 211 and the second mounting section 212 is provided with a corner brace reinforcing rib 213 in the cross-sectional direction, and the connecting part is also provided with a reinforcing rib. The arrangement of the reinforcing rib improves the strength and rigidity of the door frame corner brace 210, avoiding deformation or damage due to excessive force. The hollow design reduces the investment of materials and costs, while reducing the weight of the door frame corner brace 210, reducing the installation difficulty and labor intensity.

[0099] Please refer to Figures 24 to 26 In the preferred embodiment, the door frame corner brace 210 is provided with a corner brace connecting hole 214 for fixing the door frame corner brace 210 to the door frame body 200 by fasteners such as screws. This design ensures the firm connection between the door frame corner brace 210 and the door frame body 200, improving the overall stability of the door frame. The arrangement of the corner brace connecting hole 214 provides an additional fixing method, enhancing the connection strength between the door frame corner brace 210 and the door frame body 200, as well as between the door frame borders.

[0100] Please refer to Figures 24 to 26 In the preferred embodiment, the first mounting section 211 and the second mounting section 212 are provided with a frame body avoiding position 216 at the connecting part, which is arranged corresponding to the two corners of the corner brace mounting groove 202 of the door frame border connecting part, and the frame body avoiding position 216 is concave towards the inside of the door frame corner brace 210 compared to the two corners of the corner brace mounting groove 202. This design avoids interference between the door frame corner brace 210 and the corners of the door frame border during insertion, improving the convenience and accuracy of installation. The arrangement of the frame body avoiding position 216 avoids the interference between the door frame corner brace 210 and the corners of the door frame border, making the installation process smoother and more efficient.

[0101] Please refer to Figures 24 to 26In the preferred embodiment, the first mounting section 211 and the second mounting section 212 are also respectively provided with a reinforcing connecting portion 215, which is recessed inwardly towards the door frame corner brace 210. The frame body 200 is also correspondingly provided with a corner brace mounting hole 204 for mounting a fastener (such as a screw), which penetrates the corner brace mounting hole 204 to fix the reinforcing connecting portion 215, thereby further enhancing the connection strength between the door frame corner brace 210 and the door frame body 200. The provision of the reinforcing connecting portion 215 provides an additional fixing point, enhancing the connection strength between the door frame corner brace 210 and the door frame body 200. The use of fasteners makes the connection more secure and reliable, improving the overall stability and safety of the door frame.

[0102] The inner frame body 101, the outer frame body 102 aluminum profile door frame, the decorative door pocket 220 and the anti-bulging support member required by the utility model are aluminum profiles formed by extrusion or casting. The main inventory stores the inner frame aluminum profiles used to assemble the inner frame body 101 and the outer frame aluminum profiles used to assemble the outer frame body 102, the various frame edges of the door frame (the upper door frame edge a20, the left door frame edge b20, the right door frame edge c20), the various frame edges of the door pocket 220 (the upper door pocket edge a22, the left door pocket edge b22, the right door pocket edge c22), some general standard parts, and a small amount of fixing and connecting accessories such as screws. After the customer places an order, the inner frame aluminum profiles and the outer frame aluminum profiles are cut to the required length according to the customer's requirements for the width and height of the door leaf. During assembly, the four inner frame aluminum profiles are assembled to form the inner frame body 101, which is fixed by corner brace connectors and welding. The anti-bulging support is then arranged in the rectangular inner frame body 101 and fixed and positioned by corner brace connectors, and the anti-bulging support member and the inner frame body can also be fixed by welding to strengthen the overall structural strength. After the door panel is clamped and the inner frame body 101 and the outer frame body 102 are fixed and positioned, the door pocket decorative cover 224 of the decorative door pocket 220 is installed on the outside of the screw installation slot, and can be fixed by the screw installation site 223 to strengthen the structural strength of the two.

[0103] The installation steps of the decorative door pocket 220 include: using a cutting machine to accurately cut the decorative door pocket 220 according to the measured size, ensuring the cutting accuracy of the 45° end face, so as to form an accurate 90° angle connection. The cut frame of the decorative door pocket 220 is connected by the door pocket corner brace 221, which allows the frame of the decorative door pocket 220 to be interconnected, improving the overall stability. The door pocket corner brace 221 is fixed on the decorative door pocket 220 by using fasteners (such as screws), ensuring the firmness of the connection. The door pocket mounting slot 222 is provided on the decorative door pocket 220, which facilitates connection with the door frame or wall.

[0104] The connection of the threshold body 240 and the door frame body 200 can be realized through the door frame connecting hole 241 and the fastener. In addition, the threshold body 240 can be further provided with a rubber strip mounting groove 242 for mounting a sealing rubber strip, so as to improve the sealing performance and sound insulation performance of the door frame.

[0105] Compared with the door body formed by bending a steel plate, the door body has the following advantages.

[0106] (1) The door leaf inner frame 101, the door leaf outer frame 102, the door frame body 200 and the decorative door sleeve 220 are made of aluminum profiles, which are convenient for extrusion forming or casting forming, and avoid the problems of inconvenient bending of the steel door leaf frame, long bending forming time, large error of the bending shape and angle and the like. The door leaf frame is divided into the inner frame 101 and the outer frame 102, which is convenient for forming and improves the installation efficiency and flexibility of the door panel.

[0107] (2) The inner frame 101 and the outer frame 102 are fixedly installed together through the frame positioning groove and the frame positioning block (not specifically shown in the figure), which improves the assembly efficiency. The inner frame 101 and the outer frame 102 are matched with the frame positioning groove and the frame positioning block, so that the assembly precision is high. The adoption of the aluminum profile door frame and the door sleeve greatly reduces the weight of the door frame and improves the convenience and safety of installation. The design of the corner code mounting groove 202 makes the insertion of the door frame corner code 210 more convenient and firm, and improves the overall stability of the door frame.

[0108] (3) The aluminum profile door frame, the door sleeve and the aluminum profile are precisely cut and assembled, the shape and angle of the cutting have higher precision, the controllability of the error is very high, and the bending error of the steel door leaf frame does not bring troubles to the subsequent welding assembly, installation and debugging, and also has a great influence on the quality of the whole product. The door leaf frame and the door leaf of the utility model have high product quality, and can still maintain the rectangular shape of 90° in the long-term use.

[0109] (4) The steel door aluminum profile door frame, the door sleeve and the door leaf frame are bent in the process, and at least the following equipment is used: plate shearing machine, laser cutting machine (or plasma cutting machine), punching machine (or pressure machine), roll forming machine, bending machine, welding machine, assembly clamp and hoisting equipment (moving heavy steel parts).

[0110] (5) The time required for the whole process from the aluminum profile to the formation of the security door is only 8 to 12 days, which is relatively consistent with the customization of e-commerce.

[0111] (6) High plasticity and processing flexibility. Aluminum profiles have good plasticity and ductility, and can be processed into various complex and precise cross-sectional shapes through extrusion, stretching and other methods, meeting the various requirements of designers for door leaf appearance and performance. In addition, the processing process of aluminum profiles is relatively simple and low in cost. Although steel plate sheet metal bending can also produce various shaped shells, more processes and higher technical requirements may be needed when dealing with complex shapes, and the cost is relatively high.

[0112] (7) Because the processing process of aluminum profiles is relatively simple and easy to control, the processing precision is high, and the surface quality is also good; in addition, the surface of aluminum profiles can also be treated in various ways (such as powder spraying, anodic oxidation, etc.), to meet different decoration and performance requirements. Defects such as bending cracks, springback, indentation, etc. may occur during the steel plate sheet metal bending process, affecting the processing precision and surface quality; although these defects can be reduced by adjusting the process parameters and die design, the processing difficulty and cost may be higher compared with aluminum profiles.

[0113] In the description of the present specification, the description referring to the terms "preferred embodiment", "further embodiment", "other embodiment" or "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

Claims

1. An aluminum extrusion door body, characterized by, The aluminum profile door body comprises an aluminum profile combined door leaf and an aluminum profile door frame, the aluminum profile combined door leaf is rotatably connected with the aluminum profile door frame through a hinge, the door frame body is made of aluminum profile, the door frame body comprises a door frame upper edge frame, a door frame left edge frame and a door frame right edge frame which have the same profile cross section, the connecting end faces of the door frame upper edge frame, the door frame left edge frame and the door frame right edge frame are 45°±1°, and the three are sequentially connected to form the door frame body, and the connecting angle of the edge frames of the door frame body is 90°±2°. The aluminum profile combined door leaf comprises a door leaf frame body, a front door panel and a rear door panel, the front door panel and the rear door panel are arranged in front of and behind each other, the door leaf frame body is sleeved on the outer periphery of the front door panel and the rear door panel, the door leaf frame body is formed by four door leaf edge frames which are sequentially connected, the four door leaf edge frames are aluminum profiles with the same cross section shape, the connecting end faces of the four door leaf edge frames are 45°±1°, and the connecting angle of the edge frames of the door leaf frame body is 90°±2°.

2. The aluminum extrusion door body of claim 1, wherein, The door leaf frame body comprises an inner frame body and an outer frame body which are made of aluminum profile, the inner frame body and the outer frame body are respectively provided with a frame body positioning groove and a frame body positioning block along the length direction of the profile, the inner frame body and the outer frame body are fixedly installed together through the frame body positioning groove and the frame body positioning block, the inner frame body is located inside the outer frame body, the front end and the rear end of the inner frame body and the outer frame body respectively form a door panel clamping edge groove, and the outer peripheral edges of the front door panel and the rear door panel are clamped in the door panel clamping edge groove.

3. The aluminum extrusion door according to claim 2, wherein, The outer peripheral edges of the front door panel and the rear door panel form clamping edge portions which are concave inward compared with the middle portion plane of the door panel, the thickness of the clamping edge portions is smaller than the thickness of the middle portion of the door panel, and the thickness of the clamping edge portions is matched with the door panel clamping edge groove.

4. The aluminum extrusion door body of claim 1, wherein, A cavity between the door leaf frame body, the front door panel and the rear door panel forms a door core accommodating cavity, and the door core accommodating cavity is used for filling a door core. Anti-bulging supports are further arranged between the front door panel and the rear door panel, the anti-bulging supports are located in the door core accommodating cavity, and the front side and the rear side of the anti-bulging supports are fixedly connected with the front door panel and the rear door panel respectively. The anti-bulging supports are located at the front side and the rear side and are respectively provided with glue containing grooves which are outwardly open, the glue containing grooves are used for containing adhesive, and the front door panel and the rear door panel are fixed to the anti-bulging supports through the glue containing grooves and the adhesive respectively.

5. The aluminum extrusion door according to claim 2, wherein, The inner frame body is further provided with an angle code connecting groove which surrounds the rectangle at the front end and the rear end, the inner frame body is provided with an angle code connecting piece at the corner of the rectangle, the angle code connecting piece is installed in the angle code connecting groove, and the four inner frame bodies are fixedly connected with each other through the cooperation of the angle code connecting piece and the angle code connecting groove.

6. The aluminum extrusion door body of claim 1, wherein, The bottom of the door frame body is provided with a door sill connecting hole which is used for connecting with a door sill body, the door sill body is provided with a door frame connecting hole along the left-right direction, and the door frame connecting hole is correspondingly arranged to the door sill connecting hole. The door sill body is further provided with a glue strip mounting groove which is used for mounting an elastic glue strip, the glue strip mounting groove is arranged towards the door leaf, the elastic glue strip protrudes towards the door leaf compared with the side of the door sill body, and the elastic glue strip is used for abutting against the door leaf.

7. The aluminum extrusion door according to claim 1, wherein, The decorative door pocket comprises a door pocket upper frame, a door pocket left frame and a door pocket right frame made of aluminum profiles with the same profile section, which are sequentially and fixedly connected with each other through door pocket corner codes, and are all provided with door pocket mounting grooves matched with the door pocket corner codes.

8. The aluminum extrusion door according to claim 7, wherein, The aluminum profile door frame further comprises a lintel body arranged between the lower end of the door pocket upper frame and the upper end of the door frame upper frame, which is fixed to the upper end of the door frame upper frame and the lower end of the door pocket upper frame through a connecting bottom plate.

9. The aluminum extrusion door according to claim 1, wherein, The door frame upper frame, the door frame left frame and the door frame right frame are all provided with corner code mounting grooves extending along the length direction of the profile, and the corner code mounting grooves of the three are sequentially connected, the corner code mounting grooves are inserted with door frame corner codes at the connection positions, and the door frame upper frame, the door frame left frame and the door frame right frame are sequentially and fixedly connected with each other through the door frame corner codes and the corner code mounting grooves. The door frame corner code comprises first and second mounting sections with an angle therebetween, the angle between the first and second mounting sections is 90°±2°, the first and second mounting sections can be respectively inserted into two connected corner code mounting grooves and are matched with the corner code mounting grooves, the connection end surface of the door frame upper frame, the door frame left frame and the door frame right frame is 45°±1°, and the connection angle of the door frame upper frame, the door frame left frame and the door frame right frame is 90°±2°.

10. The aluminum extrusion door of claim 9, wherein, The door frame corner code is internally hollow, the middle portions of the first and second mounting sections are both provided with corner reinforcing ribs along the cross section direction, and the connection position of the first and second mounting sections is also provided with a reinforcing rib; the door frame corner code is provided with a corner connection hole, which is used for fixing the door frame corner code to the door frame body through a fastener.

Citation Information

Patent Citations

  • Bending forming method for door frame of security door

    CN104475505A