Door frame corner connector and aluminum profile door frame

Abstract

The utility model belongs to the technical field of doors and windows, and particularly relates to a door frame corner connector and an aluminum profile door frame. The door frame corner connector is used for connecting two adjacent frames of a door frame, so that the frames of the door frame are connected in an interlocking mode, the door frame corner connector comprises a first installation section and a second installation section which are connected with each other, and the first installation section and the second installation section form an angle of 90 degrees + / -2 degrees. The first mounting section and the second mounting section are inserted into two mutually connected door frame borders, so that the angle formed by the door frame borders is 90 + / -2 degrees. The door frame is made of aluminum profiles, the weight of the door frame is greatly reduced, meanwhile, sufficient strength and durability are kept, and installation difficulty and labor intensity are 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 due to springback is solved, and installation accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to door and window technical field, concretely relates to a door frame corner code and aluminium alloy door frame. 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 flatness of the steel plate surface. Then, the cold bending forming machine or punch is used to bend the steel plate into the shape of the door frame, and the butt welding is formed into 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 aesthetic appearance. 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, crack and indentation are prone to occur during bending. Springback will cause the size of the door frame to be unstable, affecting the installation accuracy; crack will reduce the strength and safety of the door frame; indentation will affect the aesthetic appearance 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 door frame corner code and door frame of the prior art, the utility model provides a door frame corner code.

[0005] The door frame corner code is used for connecting two adjacent frame edges of the door frame, so that the frame edges of the door frame are interlocked, the door frame corner code comprises a first mounting section and a second mounting section connected with each other, the first mounting section and the second mounting section are mutually angled, and the angle is 90°±2°, the first mounting section and the second mounting section are inserted into two mutually connected door frame edges, so that the angle between the frame edges of the door frame is 90°±2°.

[0006] The door frame corner code is provided with a corner code connecting hole, which is used for further fixing the door frame corner code on the door frame body through fasteners,

[0007] Preferably, the door frame corner code is internally hollow, the middle part of the first mounting section and the second mounting section is provided with a corner code reinforcing rib in the cross-sectional direction, and the connecting part of the two is also provided with a reinforcing rib.

[0008] Preferably, the door frame corner brace is provided with a corner brace connecting hole for fixing the door frame corner brace to the door frame body by a fastener.

[0009] The utility model discloses a door frame, which comprises a door frame body and the door frame corner brace, the door frame body is made of aluminum profile, the door frame body comprises a door frame upper frame, a door frame left frame and a door frame right frame with the same profile cross section, the door frame upper frame, the door frame left frame and the door frame right frame are all provided with a corner brace mounting groove extending along the length direction of the profile, the corner brace mounting grooves of the three are connected in sequence, the door frame corner brace is inserted into the door frame corner brace at the connecting position, and the door frame upper frame, the door frame left frame and the door frame right frame are fixedly connected in sequence by the door frame corner brace and the corner brace mounting groove.

[0010] The first mounting section and the second mounting section can be inserted into two corner brace mounting grooves connected with each other respectively, and are matched with the corner brace 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°.

[0011] Preferably, the first mounting section and the second mounting section are provided with a frame body avoiding position at the connecting position, the frame body avoiding position is arranged corresponding to two corner angles of the corner brace mounting groove at the connecting position of the door frame frame, and the frame body avoiding position is concave towards the door frame corner brace compared with the two corner angles of the corner brace mounting groove.

[0012] Preferably, the first mounting section and the second mounting section are further respectively provided with an upper reinforcing connecting part, the reinforcing connecting part is concave towards the door frame corner brace, and the frame of the door frame body is further provided with a corner brace mounting hole corresponding to the reinforcing connecting part, the corner brace mounting hole is used for mounting a fastener, and the fastener is inserted through the corner brace mounting hole to fix the reinforcing connecting part.

[0013] Preferably, the bottom of the door frame body is provided with a door sill connecting hole for connecting with a door sill body, and the door sill body is provided with a door frame connecting hole in the left-right direction, and the door frame connecting hole is arranged corresponding to the door sill connecting hole.

[0014] Preferably, the utility model also comprises a decorative door pocket, the decorative door pocket 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 cross section, the door pocket upper frame, the door pocket left frame and the door pocket right frame are fixedly connected in sequence by a door pocket corner brace in sequence, and the door pocket upper frame, the door pocket left frame and the door pocket right frame are all provided with a door pocket mounting groove matched with the door pocket corner brace.

[0015] Preferably, the decorative door pocket is provided with screw mounting positions corresponding to the door frame body, at which the decorative door pocket and the door frame body are fixedly connected by screws; the screw mounting positions are further covered with door pocket decorative covers, and the decorative door pocket is further provided with positioning clamping grooves for positioning the door frame body.

[0016] Preferably, the aluminum profile door frame further comprises a lintel body, which is arranged between the lower side of the upper frame of the door pocket and the upper side of the upper frame of the door frame, and is fixed to the upper end of the upper frame of the door frame and the lower end of the upper frame of the door pocket respectively by a connecting bottom plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] 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 similar reference numerals denote similar elements throughout the several views, and the size of the elements in the drawings does not necessarily correspond to the size of the elements in reality, but emphasis is placed on illustrating the principles of the present application.

[0018] Figure 1 Structure diagram of the door leaf structure provided for the embodiment;

[0019] Figure 2 For Figure 1 Structure diagram from another perspective;

[0020] Figure 3 For Figure 2 A-A sectional view in the middle;

[0021] Figure 4 For Figure 3 Local enlarged structure diagram of the top part in the middle;

[0022] Figure 5 For Figure 3 Local enlarged structure diagram of the anti-bulging support part in the middle;

[0023] Figure 6 For Figure 3 Structure diagram of the bottom part in the middle;

[0024] Figure 7 For Figure 2 B-B sectional view in the middle;

[0025] Figure 8 For Figure 7 Local enlarged structure diagram of the right end in the middle;

[0026] Figure 9 For Figure 7 Local enlarged structure diagram of the left end in the middle;

[0027] Figure 10Structure schematic diagram for the cooperation of the corner code connecting piece and the corner code connecting groove of two adjacent segments of the inner frame body;

[0028] Figure 11 Structure schematic diagram for the cooperation of the corner code connecting piece and the corner code connecting groove of the inner frame body and the anti-bulging support piece;

[0029] Figure 12 Front view of the aluminum profile door frame provided by the embodiment;

[0030] Figure 13 Perspective view of the aluminum profile door frame provided by the embodiment;

[0031] Figure 14 Schematic view from the rear side in Figure 12 ;

[0032] Figure 15 Schematic view from the front side in Figure 14 ;

[0033] Figure 16 Top view of Figure 12 ;

[0034] Figure 17 C-C sectional view in Figure 12 ;

[0035] Figure 18 Partial enlarged view of the right end in Figure 17 ;

[0036] Figure 19 D-D sectional view in Figure 12 ;

[0037] Figure 20 Partial enlarged view of the right end in Figure 19 ;

[0038] Figure 21 E-E sectional view in Figure 12 ;

[0039] Figure 22 Partial enlarged view of the top in Figure 21 ;

[0040] Figure 23 Partial enlarged view of the bottom in Figure 21 ;

[0041] Figure 24 F-F sectional view in Figure 16 ;

[0042] Figure 25 Partial enlarged view of the top in Figure 24 ;

[0043] Figure 26 For Figure 25 is a partial enlarged view of the right end.

[0044] Figure identification: door leaf frame 100, inner frame 101, outer frame 102, frame positioning groove 103, frame positioning block 104, reverse tooth 105, positioning groove 106, positioning protrusion 107, frame reinforcing rib 108, screw mounting groove 109, door panel clamping edge groove 110, glue containing groove 111, door core containing cavity 112, decorative cover 113, cover body buckle 114, cover body clamping groove 115, corner code connector 116, corner code connection groove 117, clamping edge part 118, hinge connection hole 120, anti-bulging support 121, connection groove wall body 122, front door panel 123, rear door panel 124.

[0045] Door frame body 200, door frame upper frame a20, door frame left frame b20, door frame right frame c20, hinge mounting position 201, corner code mounting groove 202, door sill connection hole 203, corner code mounting hole 204, door frame corner code 210, first mounting section 211, second mounting section 212, corner code reinforcing rib 213, corner code connection hole 214, reinforcing connection part 215, frame 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 mounting groove 222, screw mounting position 223, door pocket decorative cover 224, positioning clamping groove 225, door header body 230, connection bottom plate 231, door sill body 240, door frame connection hole 241, adhesive tape mounting groove 242. DETAILED DESCRIPTION

[0046] In order to facilitate the understanding of the present utility model, the following will be described in more detail with reference to the relevant drawings.

[0047] 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 technology belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present utility model. As used in this description, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0048] Please refer to Figures 1 to 11 , on the one hand, provides a door leaf frame 100, the door leaf frame 100 includes the inner frame 101 and the outer frame 102 made of aluminum profile, the inner frame 101 and the outer frame 102 are provided with frame positioning groove 103 and frame positioning block 104 along the length direction of profile respectively, the inner frame 101 and the outer frame 102 are fixedly installed together through frame positioning groove 103 and frame positioning block 104, the inner frame 101 is located inside the outer frame 102, the front end and the rear end of the inner frame 101 and the outer frame 102 respectively form door panel clamping edge groove 110.

[0049] Please refer to Figures 3 to 11 In the 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 to form a rectangle through the inner frame connecting end faces. 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 to form a rectangle through the outer frame connecting end faces. The outer frame body 102 is fixed to the outer periphery of the inner frame body 101 through the frame positioning groove 103 and the frame positioning block 104.

[0050] Please refer 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 at 45°. The inner frame body 101 and the outer frame body 102 of the aluminum profile are generally cut by a cutting machine, and the size is very accurate. Four aluminum profiles are sequentially built to form a rectangular door leaf frame 100 with a 90° corner. Further, the inner frame aluminum profiles and the outer frame aluminum profiles are fixed by the fixing member, so that the rectangular door leaf frame 100 can be used for a long time and still maintain 90°. The fixing member can adopt screws or the following angle code connecting member 116, etc. Through the above setting, it is avoided that the steel plate material has high bending resistance in the bending process of the steel door leaf frame, and the steel plate material cannot be installed to be bent into a rectangular door leaf frame 100 with a 90° corner. Generally, the door leaf frame 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 100 will tilt to one side during long-term use, causing the door leaf frame 100 to contact the door frame, thereby affecting use.

[0051] Please refer to Figures 3 to 11 In the preferred embodiment, the inner side of the inner frame body 101 is further provided with an angle code connecting groove 117 around the rectangle at the front and rear ends. The inner frame body 101 is provided with an angle code connecting member 116 at the corner of the rectangle, and the angle code connecting member 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 member 116 and the angle code connecting groove 117.

[0052] The angle code connecting member 116 and the angle code connecting groove 117 are cooperated to realize the fixation, which is convenient for installation and can optimize the process.

[0053] 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, respectively. The door plate clamping groove 110 is formed by bending the front end and the rear end of the outer frame body 102 inward.

[0054] The inward bending refers to bending inwardly to the inside of the door leaf, and the front end and the rear end of the outer frame body 102 are bent inwardly to form two door plate clamping groove 110 at the front end and the rear end. By clamping the front door plate 123 and the rear door plate 124 in the clamping groove, the installation is facilitated and the installation efficiency is improved. Secondly, the clamping groove is formed by bending the front end and the rear end of the outer frame body 102 inwardly, which is convenient for one-piece forming of the outer frame body 102 and the like.

[0055] 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.

[0056] 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. 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 more easily formed. On the other hand, through the above arrangement, the outer frame body 102 and the inner frame body 101 are combined and installed conveniently.

[0057] Please refer to Figures 4 to 5 In the preferred embodiment, the frame positioning groove 103 is provided with a reverse tooth 105 on the end face matched with the frame positioning block 104.

[0058] 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 function of preventing retreat, so that the connection between the two is more stable. The aluminum profile has a certain elasticity, so that the connection stability is stronger.

[0059] In the preferred embodiment, the inner frame body 101 and the outer frame body 102 are further respectively provided with a positioning groove 106 and a positioning protrusion 107 matched with each other. The positioning groove 106 and the positioning protrusion 107 extend along the length direction of the profile. The positioning groove 106 and the frame positioning block 104 are respectively arranged at the front side and the rear side.

[0060] The positioning groove 106 is formed by being recessed inwardly on the outer side of the inner frame body 101. The positioning protrusion 107 is formed by being protruded inwardly on the inner side of the outer frame body 102. The positioning groove 106 and the positioning protrusion 107 are located on the same side of the inner frame body 101 and the outer frame body 102. 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 ends of the inner frame body 101 and the outer frame body 102 are fixed and positioned, and the installation precision is improved.

[0061] Please refer to Figures 4 to 5 And Figures 8 to 9In the preferred embodiment, the inner frame 101 is further connected with a frame reinforcing rib 108 on the outer side surface, 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 101 than the frame positioning block 104, and the reinforcing rib, the frame positioning block 104 and the inner part of the inner frame 101 form a hollow triangle.

[0062] The hollow triangle can save materials, and the reinforcing rib can strengthen the structure of the frame positioning block 104, thereby strengthening the strength of the mounting connection structure between the outer frame 102 and the outer frame 102.

[0063] Please refer to Figure 4 , Figure 5 and Figure 8 In the preferred embodiment, the outer side surface of the outer frame 102 is further provided with a screw mounting groove 109 extending along the length direction of the profile, the screw mounting groove 109 is open outwardly and recessed inwardly along the outer side surface of the outer frame 102.

[0064] The screw mounting groove 109 functions as a drill bit or a screw when the screw is drilled or mounted, preventing the drill bit or the screw from sliding everywhere, and the screw can pass through the outer frame 102 and the inner frame 101 along the screw mounting groove 109 and further fix the two.

[0065] Please refer to Figure 4 , Figure 5 and Figure 8 In the preferred embodiment, the outer side of the outer frame 102 is further covered with a decorative cover 113, and the decorative cover 113 is detachably mounted on the outer frame 102 through a cover buckle 114 and an angle code connector 116.

[0066] The decorative cover 113 is generally U-shaped as a whole, the cover buckles 114 are arranged on both sides thereof, and the outer frame 102 is correspondingly provided with cover buckling grooves 115, and when the decorative cover 113 needs to be mounted on the outer frame 102, the cover buckles 114 are buckled into the cover buckling grooves 115. Through the decorative cover 113, the screws at the screw mounting groove 109 are avoided from being exposed, and the appearance of the door leaf frame 100 and the door leaf structure is maintained.

[0067] Please refer to Figures 1 to 11In another aspect, 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 a frame positioning groove 103 and a frame positioning block 104 along the profile length direction, the inner frame 101 and the outer frame 102 are fixedly installed together through the frame positioning groove 103 and the frame positioning block 104, the inner frame 101 is located inside the outer frame 102, and the front end and the rear end of both the inner frame 101 and the outer frame 102 form a door panel clamping groove 110; the outer peripheral edges of both the front door panel 123 and the rear door panel 124 are clamped in the door panel clamping groove 110.

[0068] Please refer to Figures 8 to 9 In the preferred embodiment, the outer peripheral edges of both the front door panel 123 and the rear door panel 124 form a clamping edge portion 118, the clamping edge portion 118 is recessed inward compared to the door panel middle portion plane, the thickness of the clamping edge portion 118 is smaller than the thickness of the door panel middle portion, and the thickness of the clamping edge portion 118 is adapted to the door panel clamping groove 110.

[0069] The thickness of the clamping edge portion 118 is fixed and just clamped into the door panel clamping groove 110, through the above-mentioned setting, the front door panel 123 and the rear door panel 124 with different plate thicknesses can be equipped according to customer requirements, for example, the door panel clamping groove 110 is 0.8mm, the required plate thickness of the front door panel 123 is 1.0mm, the edge of the front door panel 123 is milled by 0.2mm to form the clamping edge portion 118 with a thickness of 0.8mm; if the required plate thickness of the front door panel 123 is 1.2mm, the edge of the front door panel 123 is milled by 0.4mm to form the clamping edge portion 118 with a thickness of 0.8mm.

[0070] Please refer to Figures 7 to 9 In the preferred embodiment, the cavity between the door leaf frame 100, the front door panel 123 and the rear door panel 124 forms a door core accommodating cavity 112, and the door core accommodating cavity 112 is used to fill the door core.

[0071] The door core is one of or any combination of mineral wool, polyurethane foaming material, steel mesh, polystyrene foam board, fireproof board and honeycomb paper board, 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 the aluminum profile combined door leaf, such as the square box function or the sound absorption effect.

[0072] Please refer to Figures 3 to 6In the preferred embodiment, an anti-bulging support 121 is further arranged between the front door panel 123 and the rear door panel 124, and the anti-bulging support 121 is located in the door core accommodating cavity 112, and the front side and the rear side of the anti-bulging support 121 are fixedly connected with the front door panel 123 and the rear door panel 124 respectively.

[0073] The anti-bulging support 121 is arranged to prevent the front door panel 123 and the rear door panel 124 from being bulged forward and backward respectively, and affecting the use and appearance of the door leaf.

[0074] Please refer to Figures 3 to 6 In the preferred embodiment, the anti-bulging support 121 is located at the front side and the rear side, and the glue accommodating grooves 111 are arranged to face outward, and the glue accommodating grooves 111 are used to accommodate the adhesive, and the front door panel 123 and the rear door panel 124 are fixed to the anti-bulging support 121 through the glue accommodating grooves 111 and the adhesive respectively.

[0075] When the front door panel 123 and the rear door panel 124 are fixed to the anti-bulging support 121, the adhesive is first applied and filled in the glue accommodating grooves 111, and then the front door panel 123 and the rear door panel 124 are pressed on the front side and the rear side of the anti-bulging support 121 respectively, so as to ensure the fixing and make the front door panel 123 and the rear door panel 124 flatly adhere to the front and rear surfaces of the anti-bulging support 121, and ensure that the interval distance between the front door panel 123 and the rear door panel 124 is accurate and is the required size. The glue accommodating grooves 111 are arranged to avoid that when the adhesive is applied on the front and rear surfaces of the anti-bulging support 121 during the fixing, the front door panel 123 and the rear door panel 124 are unevenly adhered to the anti-bulging support 121 due to the characteristics of the adhesive, and it is difficult to fix the front door panel 123 and the rear door panel 124 according to the expected interval distance.

[0076] Please refer to Figures 3 to 6 In the preferred embodiment, the anti-bulging support 121 is fixedly connected between the front door panel 123 and the rear door panel 124, and the anti-bulging support 121 and the inner frame body 101 are aluminum profiles with the same cross-sectional shape, and the two ends of the anti-bulging support 121 are fixedly connected to the door leaf frame body 100.

[0077] 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, the anti-bulging support 121 and the inner frame body 101 can be cut from the same profile, which facilitates the concentration of the production line and reduces the time of the molding process section and the product assembly process section.

[0078] Please refer to Figures 3 to 6In the preferred embodiment, the anti-bulging support 121 and the inner frame 101 are both provided with an angle code connecting groove 117 and a glue containing groove 111, the two ends of the anti-bulging support 121 are connected to the inner frame 101 respectively, the angle code connecting grooves 117 of the two are connected, the angle code connecting grooves 117 of the two are provided with an angle code connecting member 116 at the connection position, and the two are fixedly connected through the angle code connecting member 116 and the angle code connecting grooves 117.

[0079] The structural strength between the anti-bulging support 121 and the inner frame 101 is ensured, and the installation and positioning are convenient. The angle code connecting member 116 is an L-shaped member with an angle of 90°. The anti-bulging support 121 and the inner frame 101 are both provided with a glue containing groove 111, and the anti-bulging support 121 and the inner frame 101 are cut from the same aluminum profile, so that the front door plate 123 and the rear door plate 124 are fixed accurately and flat according to the requirements. Generally, the interval distance between the front door plate 123 and the rear door plate 124 is adapted to the distance between the door plate clamping groove 110 on the upper end and the lower end of the outer frame 102.

[0080] Please refer to Figures 3 to 6 In the preferred embodiment, the front door plate 123 is a steel plate or an aluminum plate, and the rear door plate 124 is a steel plate, an aluminum plate or a wooden plate.

[0081] Through the above setting, customers can flexibly replace door plates of different material combinations according to requirements.

[0082] Please refer to Figures 1 to 11 In the preferred embodiment, the upper end, the middle part and the lower end of the right side of the door leaf frame 100 are provided with a hinge connecting hole 120, the height of the door leaf is h, and the heights of the hinge connecting holes 120 at the three positions are 0.1h to 0.2h, 0.65h to 0.8h and 0.85h to 0.95h respectively.

[0083] The door leaf is fixed on the door frame through the hinge connecting hole 120, the height of the door leaf is the height of the door leaf frame 100, the height of the hinge connecting hole 120 at the lower end is set to be 0.1h to 0.2h of the height of the door leaf, the height of the hinge connecting hole 120 at the middle part is set to be 0.65h to 0.8h of the height of the door leaf, and the height of the hinge connecting hole 120 at the upper end is set to be 0.85h to 0.95h of the height of the door leaf. Through the above setting, the door leaf is fixed on the door frame, and the mechanical structure is more in line with the requirements.

[0084] Please refer to Figures 12 to 26The 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, door frame body 200 includes profile section same door frame upper frame a20, door frame left frame b20 and door frame right frame c20.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 profile length direction, the corner brace mounting groove 202 of three is sequentially connected, door frame corner brace 210 is inserted at connecting place door frame corner brace 210, 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.Adopt aluminum profile as door frame material, greatly reduce the weight of door frame, sufficient strength and durability are maintained simultaneously, installation difficulty and labor intensity are reduced.By being provided with 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.

[0085] Please refer to Figures 24 to 26 In the preferred embodiment, the door frame corner brace 210 includes a first mounting section 211 and a second mounting section 212 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 corner brace mounting grooves 202 connected to each other, and both are adapted to the corner brace mounting grooves 202, the connecting end surface of the door frame upper frame a20, the door frame left frame b20 and the door frame right frame c20 is 45°±1°, and the connection angle of the door frame upper frame a20, the door frame left frame b20 and the door frame right frame c20 is 90°±2°. The connecting end surface of the door frame upper frame a20, the door frame left frame b20 and the door frame right frame c20 is 45°±1°, and the connection angle of each frame of the door frame is 90°±2° through the insertion of the door frame corner brace 210, which ensures the squareness and stability of the door frame. The interlocking design of the door frame corner brace 210 enhances the connection strength between each frame of the door frame, improves the overall stability of the door frame, and improves the installation efficiency through the insertion method. By accurately controlling the angle of the door frame corner brace 210 and the frame connecting end surface, the squareness and beauty of the door frame are ensured, and the installation quality is improved.

[0086] Please refer to Figure 21 And Figure 23 In the preferred embodiment, the bottom of the door frame body 200 is provided with a threshold connecting hole 203 for connecting with the threshold body 240; the threshold body 240 is provided with a door frame connecting hole 241 in the left-right direction, and the door frame connecting hole 241 is provided corresponding to the threshold connecting hole 203.

[0087] Please refer to Figure 21 And Figure 23In the preferred embodiment, the threshold body 240 is further provided with a rubber strip mounting groove 242 for mounting an elastic rubber strip, the rubber strip mounting groove 242 is arranged towards the door leaf, and the elastic rubber strip protrudes towards the side of the door leaf relative to the threshold body 240, and the elastic rubber strip is used for abutting against the door leaf. The sealing gasket is arranged between the threshold body 240 and the door frame body 200, further enhancing the sealing effect of the door frame, and the elastic rubber strip can also play a buffering effect.

[0088] Please refer to Figures 12 to 18 In the preferred embodiment, the decorative door pocket 220 is further provided with a door pocket upper frame a22, a door pocket left frame b22 and a door pocket right frame c22 made of aluminum profiles with the same profile cross section, the door pocket upper frame a22, the door pocket left frame b22 and the door pocket right frame c22 are sequentially and fixedly connected to each other through a door pocket corner code 221, and the door pocket upper frame a22, the door pocket left frame b22 and the door pocket right frame c22 are all provided with a door pocket mounting groove 222 matched with the door pocket corner code 221. 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. The design of the screw mounting position 223 and the positioning clamping groove 225 simplifies the installation process of the decorative door pocket and improves the installation efficiency.

[0089] Please refer to Figures 14 to 15 In the preferred embodiment, the door pocket corner code 221 includes two segments connected 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 matched with 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°.

[0090] 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, improving 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, ensuring the accurate positioning of the door frame body 200 and the decorative door pocket 220.

[0091] Please refer to Figures 12 to 15 , Figure 20 and Figure 22In the preferred embodiment, the aluminum profile door frame further comprises a lintel body 230 arranged between the lower end of the door pocket upper frame a22 and the upper end of the door frame upper frame a20, and the lintel body 230 is fixed to the upper end of the door frame upper frame a20 and the lower end of the door pocket upper frame a22 by 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.

[0092] Please refer to Figures 12 to 26 The door frame body 200 is made of aluminum profile, and the door frame body 200 comprises a door frame upper frame a20, a door frame left frame b20 and a door frame right frame c20 with the same profile section, and the door frame upper frame a20, the door frame left frame b20 and the door frame right frame c20 are all provided with an angle code mounting groove 202 extending along the length direction of the profile, and the angle code mounting grooves 202 of the three are connected in sequence, and the door frame angle code 210 is inserted into the connection position of the door frame angle code 210, and the door frame upper frame a20, the door frame left frame b20 and the door frame right frame c20 are fixedly connected in sequence 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 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 frame a20, the door frame left frame b20 and the door frame right frame c20 is 45°±1°, and the connecting angle of the door frame upper frame a20, the door frame left frame b20 and the door frame right frame c20 is 90°±2°. The use 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 use of aluminum profile, the corresponding aluminum profile of the frame can be accurately cut to 45° end face by using a cutting machine during forming. The accurate 45° and 90° angle design ensures the overall shape and size accuracy of the door frame.

[0093] Please refer to Figures 12 to 26 The utility model discloses a door frame angle code 210 for connecting two adjacent frames (door frame upper frame a20, door frame left frame b20 or door frame right frame c20) of the door frame body 200, so that the frames of the door frame are interlocked. The door frame angle code 210 comprises a first mounting section 211 and a second mounting section 212 connected to each other, and the first mounting section 211 and the second mounting section 212 are at an angle, and the angle is 90°±2°, so that the first mounting section 211 and the second mounting section 212 are inserted into two connected door frame frames, and the angle between the frames of the door frame is 90°±2°.

[0094] Please refer to Figures 24 to 26The door frame corner code 210 is used for connecting two adjacent frame bodies of the door frame body 200, so that the frame bodies of the door frame are interlocked and connected. The door frame corner code 210 comprises a first mounting section 211 and a second mounting section 212 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 frame bodies of the door frame form an accurate 90° angle at the connection, and improves the overall stability and dimensional accuracy of the door frame. The interlocking connection design improves the connection stability of the frame bodies of the door frame, and avoids the size instability problem caused by the rebound of the traditional steel plate door frame.

[0095] Please refer to Figures 24 to 26 The door frame corner code 210 is provided with a corner code connecting hole 214, and the corner code connecting hole 214 is used for further fixing the door frame corner code 210 on the door frame body 200 through fasteners (such as screws).

[0096] Please refer to Figures 24 to 26 In the preferred embodiment, the door frame corner code 210 is internally hollow, so that the middle parts of the first mounting section 211 and the second mounting section 212 are both provided with corner reinforcing ribs 213 in the cross-sectional direction, and the connecting part of the two is also provided with reinforcing ribs. The setting of the reinforcing ribs improves the strength and rigidity of the door frame corner code 210, and avoids deformation or damage caused by excessive stress. The hollow design reduces the investment of materials and cost, and at the same time reduces the weight of the door frame corner code 210, reduces the installation difficulty and labor intensity.

[0097] Please refer to Figures 24 to 26 In the preferred embodiment, the door frame corner code 210 is provided with a corner code connecting hole 214, and the corner code connecting hole 214 is used for fixing the door frame corner code 210 on the door frame body 200 through fasteners (such as screws). This design ensures the firm connection between the door frame corner code 210 and the door frame body 200, and improves the overall stability of the door frame. The setting of the corner code connecting hole 214 provides an additional fixing mode, and enhances the connection strength between the door frame corner code 210 and the door frame body 200, and between the frame bodies.

[0098] 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, the frame body avoiding position 216 is provided corresponding to the two corners of the corner code mounting groove 202 of the door frame frame body connecting part, and the frame body avoiding position 216 is concave to the door frame corner code 210 compared with the two corners of the corner code mounting groove 202. This design avoids the interference between the door frame corner code 210 and the corners of the door frame frame body during the insertion process, improves the convenience and accuracy of the installation. The setting of the frame body avoiding position 216 avoids the interference between the door frame corner code 210 and the corners of the door frame frame body, so that the installation process is more smooth and efficient.

[0099] Please refer toFigures 24 to 26 In 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.

[0100] 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 extruded or cast. The main inventory stores the inner frame aluminum profiles for assembling the inner frame body 101 and the outer frame aluminum profiles for assembling 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 position 223.

[0101] 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 decorative door pocket 220 frame 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.

[0102] 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.

[0103] Compared with the door body formed by bending a steel plate, the door body has the following advantages.

[0104] (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.

[0105] (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 use 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.

[0106] (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 finally have high product quality, and can still maintain a rectangular shape of 90° in a long-term use process.

[0107] (4) The steel door aluminum profile door frame, the door sleeve and the door leaf frame are bent in the process, and at least a plate shearing machine, a laser cutting machine (or a plasma cutting machine), a punching machine (or a pressure machine), a roller forming machine, a bending machine, a welding machine, an assembly clamp and hoisting equipment (moving heavy steel parts) and the like are used. The utility model does not need or greatly reduces the use of the punching machine (or the pressure machine), the roller forming machine, the bending machine, the assembly clamp and the hoisting equipment (moving heavy steel parts) and the like.

[0108] (5) The time required for the whole process from the aluminum profile to the security door is only 8 to 12 days, which is relatively consistent with the customization of e-commerce.

[0109] (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.

[0110] (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. During the steel plate sheet metal bending process, defects such as bending cracks, springback, indentation, etc. may occur, 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.

[0111] 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. A door frame corner bracket, characterized in that, The door frame corner bracket is used to connect two adjacent side frames of the door frame, so that the side frames of the door frame are interlocked. The door frame corner bracket includes a first installation segment and a second installation segment that are connected to each other. The first installation segment and the second installation segment are at an angle to each other, and the angle is 90°±2°. The first installation segment and the second installation segment are inserted into the two connected door frame side frames, so that the angle between the side frames of the door frame is 90°±2°. The door frame corner bracket is provided with a corner bracket connection hole, which is used to further fix the door frame corner bracket to the door frame body by fasteners.

2. The door frame corner bracket according to claim 1, characterized in that, The door frame corner bracket is hollow inside. Both the first and second installation sections have corner bracket reinforcing ribs along the cross-sectional direction in their middle sections, and the connection between the two sections is also reinforced with ribs.

3. The door frame corner bracket according to claim 1, characterized in that, The corner bracket of the door frame is provided with a corner bracket connection hole, which is used to fix the corner bracket of the door frame to the door frame body by fasteners.

4. An aluminum profile door frame, characterized in that, The device includes a door frame body and the door frame corner bracket as described in claim 1. The door frame body is made of aluminum profile and includes a top frame, a left frame, and a right frame with the same profile cross-section. Each of the top frame, left frame, and right frame is provided with a corner bracket mounting groove extending along the length of the profile. The corner bracket mounting grooves of the three frames are connected in sequence. The door frame corner bracket is inserted at the connection point. The top frame, left frame, and right frame are sequentially and fixedly connected to each other through the door frame corner bracket and the corner bracket mounting groove. The first installation segment and the second installation segment can be respectively inserted into two interconnected corner bracket installation slots, and both are adapted to the corner bracket installation slots. The connection end face of the top frame, left frame, and right frame of the door frame is 45°±1°, and the connection angle of the top frame, left frame, and right frame of the door frame is 90°±2°.

5. The aluminum profile door frame according to claim 4, characterized in that, The first installation section and the second installation section are provided with frame clearance positions at the connection point. The frame clearance positions are provided at the two corners of the corner bracket mounting groove at the connection point of the door frame edge. The frame clearance positions are recessed towards the door frame corner bracket relative to the two corners of the corner bracket mounting groove.

6. The aluminum profile door frame according to claim 4, characterized in that, The first installation section and the second installation section are also provided with upper reinforcing connecting parts. The reinforcing connecting parts are recessed towards the corner bracket of the door frame. The edge of the door frame body is also provided with corner bracket mounting holes. The corner bracket mounting holes are used to install fasteners. The fasteners pass through the corner bracket mounting holes to fix the reinforcing connecting parts.

7. The aluminum profile door frame according to claim 4, characterized in that, The bottom of the door frame body is provided with a threshold connection hole for connecting with the threshold body; the threshold body is provided with a door frame connection hole along the left and right direction, and the door frame connection hole is provided corresponding to the threshold connection hole.

8. The aluminum profile door frame according to claim 4, characterized in that, It also includes a decorative door frame, which includes a top frame, a left frame, and a right frame made of aluminum profiles with the same profile cross-section. The top frame, left frame, and right frame are sequentially fixed to each other by door frame corner brackets, and each of them is provided with a door frame mounting groove that matches the door frame corner brackets.

9. The aluminum profile door frame according to claim 8, characterized in that, The decorative door frame has a screw mounting position corresponding to the door frame body, and the decorative door frame and the door frame body are fixedly connected by screws at the screw mounting position; the screw mounting position is also covered by a door frame decorative cover, and the decorative door frame is also provided with a positioning slot for positioning the door frame body.

10. The aluminum profile door frame according to claim 8, characterized in that, The aluminum profile door frame also includes a lintel body, which is located between the lower part of the upper frame of the door casing and the upper part of the upper frame of the door casing. The lintel body is fixed to the upper end of the upper frame of the door casing and the lower end of the upper frame of the door casing respectively by connecting base plates.

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