Integrated prefabricated steel door frame structure and integrated steel door

Abstract

This utility model relates to an integrated prefabricated steel door frame structure and an integrated steel door. The steel door frame structure includes an integrated door frame, which is installed within a doorway and includes at least one inner core and one inner sleeve. The inner core has a back rib on one side corresponding to the doorway, and the back rib is fixed to the wall of the doorway by expansion bolts. The inner core has a finishing groove on the interior side and a first step on the other side. The inner sleeve extends from the interior side to the exterior side and sequentially includes a first finishing part, a door frame part, a door panel assembly part, and a second finishing part. The first finishing part is inserted into the finishing groove, and the door panel assembly part is recessed into the wall of the doorway relative to the door frame part, so that when the first finishing part is engaged with the finishing groove, it engages with the first step to position the inner sleeve. The second finishing part extends to the exterior side of the building wall for structural sealing. This utility model unifies the design of the outer decorative door frame and the inner door frame, enabling fully prefabricated dry construction on-site, making installation convenient and quick.

Description

Technical Field

[0001] This utility model relates to the field of steel door technology, specifically to an integrated prefabricated steel door frame structure and an integrated steel door. Background Technology

[0002] Traditional steel door frames can only be installed on one side of the building wall of the doorway, and cannot cover both sides of the wall at the same time. Therefore, after the door frame is installed and mounted on the wall, the wall inside the doorway will still be exposed, resulting in an uncoordinated appearance.

[0003] While fully enclosed steel door frames are available on the market, these products are typically achieved by welding a decorative steel plate onto the side of the door frame that is not encased in wall space. This process is cumbersome, requiring welding tools for on-site installation. Furthermore, the weld points need to be ground down after welding, and cannot be completely eliminated. To maintain aesthetics and harmony, the decorative steel plate also needs to be repainted or have a new finish applied, making the process even more time-consuming and labor-intensive.

[0004] To address this, we propose an integrated prefabricated steel door frame structure and an integrated steel door. Utility Model Content

[0005] This application provides an integrated prefabricated steel door frame structure and an integrated steel door, which at least solves the problems of existing fully enclosed steel door frame products requiring welding tools for on-site installation, which is cumbersome and requires grinding of the weld points after welding. In order to achieve aesthetics and harmony, the decorative steel plate also needs to be repainted or the decorative surface is pasted, which is even more time-consuming and labor-intensive.

[0006] In the first aspect, this application provides an integrated prefabricated steel door frame structure, which is assembled with a pre-set door opening on a building wall, including an integrated door frame, which is set in the door opening and includes at least an inner core and an inner sleeve. The inner core component has a back rib on one side corresponding to the door opening, and the back rib is fixed to the wall of the door opening by expansion bolts. The inner core component has a finishing groove on one side corresponding to the interior side, and a first step on the other side. The inner fitting has a first edge portion, a door frame portion, a door panel assembly portion and a second edge portion extending from the indoor side to the outdoor side. The first edge portion is inserted into the edge groove. The door panel assembly portion is recessed into the wall of the door opening relative to the door frame portion, so that when the first edge portion is engaged in the edge groove, it is engaged in the first step portion to position the inner fitting. The second edge portion extends to the outdoor side of the building wall for structural edge sealing. It also includes an inner door edge trim strip, which is C-shaped and has a third edge trim section and a fourth edge trim section at its two free ends. The third edge trim section is inserted into the edge trim groove and fits tightly with the first edge trim section and the edge trim groove. The fourth edge trim section extends to the interior side of the building wall for structural edge sealing.

[0007] Optionally, the exterior side of the building wall is further provided with an exterior decorative element, which includes: The first C-shaped keel, numbered two, is symmetrically fixed to the exterior side of the building wall by expansion bolts, and one of the first C-shaped keels has a first interlocking gap between it and the second edge trim. The first decorative panel has a fifth edge portion at both ends, and one of the fifth edge portions is inserted into the interlocking gap to fix the first decorative panel to the exterior side of the building wall, while the other fifth edge portion is attached to the exterior side of the building wall for structural edge sealing.

[0008] Optionally, the exterior side of the building wall is also symmetrically provided with door jambs, and the outer decorative component is also provided with a door jamb decorative component on the side opposite to the integrated door frame, the door jamb decorative component including: The U-shaped keel is arranged parallel to the C-shaped keel and is fixed to the exterior side of the building wall by expansion bolts; The second decorative panel has a sixth edge portion at both ends, and one of the sixth edge portions is inserted into the U-shaped keel to fix the second decorative panel to the door jamb, while the other sixth edge portion extends to the outside of the door jamb for structural edge sealing.

[0009] Optionally, the second decorative panel also has a first snap-fit ​​gap between itself and another of the first C-shaped keels to cooperate with the fifth edge portion for insertion and fixation.

[0010] Optionally, the integrated door frame is provided with a door head piece on the top of the exterior side of the building wall, and a top cover plate is provided on the upper part of the door head piece. The top cover plate is horizontally fixed to the lower side of the exterior ceiling by a number of corner brackets; and a second interlocking gap is formed between the top cover plate and the integrated door frame.

[0011] Optionally, the door header component includes: The second C-shaped keel, in quantity two, is symmetrically fixed to the exterior side of the building wall by expansion bolts, and there is a second interlocking gap between one of the C-shaped keels and the second edge trim, and between the other C-shaped keel and the roof panel; The door panel has a seventh edge portion at both ends, and both seventh edge portions are inserted into the second fastening gap to fix the door panel to the exterior side of the building wall.

[0012] Secondly, this application provides an integrated steel door, including the integrated prefabricated steel door frame structure described in the first aspect, and a steel door assembled within the integrated prefabricated steel door frame structure by a plurality of components.

[0013] Optionally, the door panel assembly is also fitted with a sealing and soundproofing strip that mates with the edge of the steel door.

[0014] Compared with related technologies, the integrated prefabricated steel door frame structure and integrated steel door provided in this application have at least the following technical advantages: Through the integrated design of the door frame, combined with the interlocking assembly of the edge trim and the inner door edge trim, a unified design of the inner door edge trim and the integrated door frame is achieved; combined with the snap-fit ​​assembly of the outer decorative parts, door jamb decorative parts and door head parts, a unified design of the outer decorative parts, door jamb decorative parts and door head parts and the integrated door frame is achieved. On-site, full assembly dry construction is realized, unifying the design of the outer decorative door frame and the inner door frame, making installation convenient and quick.

[0015] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an integrated steel door structure according to an exemplary embodiment.

[0018] Figure 2 This is a cross-sectional view of an integrated steel door according to an exemplary embodiment.

[0019] Figure 3 This is a schematic diagram of the combined structure of an integrated door frame, inner door edge trim, first decorative panel and door jamb decoration, according to an exemplary embodiment.

[0020] Figure 4 This is a vertical cross-sectional view of an integrated steel door according to an exemplary embodiment.

[0021] Explanation of reference numerals in the attached diagram: Steel door 10; Inner door edge trim 20; Third edge trim 201; Fourth edge trim 202; Integrated door frame 30; inner core component 301; edge trimming groove 302; back rib component 303; inner sleeve component 304; first edge trimming part 305; door panel assembly part 306; second edge trimming part 307; sealing and sound insulation strip 308; door frame part 309. Building wall 40; doorway 401; Outer decorative element 50; First C-shaped keel 501; First decorative panel 502; First fastening gap 503; Door jamb decorative piece 60; U-shaped keel 601; second decorative panel 602; sixth edge trim 6021; Door jamb section 70. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," "fourth," "fifth," "sixth," and "seventh" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] While fully enclosed steel door products are currently available on the market, these door frames are typically installed by welding a decorative steel plate onto the side of the door that is not enclosing the wall. This process is cumbersome, requiring welding tools for on-site installation. Furthermore, the weld points need to be ground down after welding, and cannot be completely eliminated. For aesthetic and aesthetic purposes, the decorative steel plate also needs to be repainted or have a new finish applied, making the process even more time-consuming and labor-intensive.

[0026] Based on the above, this utility model provides an integrated prefabricated steel door frame structure and an integrated steel door, which will be described in detail below with reference to specific embodiments and accompanying drawings.

[0027] Example 1: This utility model embodiment provides an integrated prefabricated steel door frame structure. Figure 1 This is a schematic diagram of an integrated steel door structure according to an exemplary embodiment. Figure 2 This is a cross-sectional view of an integrated steel door according to an exemplary embodiment. Figure 3 This is a schematic diagram illustrating the combined structure of an integrated door frame, inner door edge trim, first decorative panel, and door jamb decorative element according to an exemplary embodiment. Figure 1-3 As shown, the integrated prefabricated steel door frame structure is assembled with a pre-set door opening 401 on a building wall 40. It includes an integrated door frame 30, which is set inside the door opening 401 and includes at least an inner core 301 and an inner sleeve 304. The inner core 301 has a back rib 303 on one side corresponding to the door opening 401, and the back rib 303 is fixed to the wall of the door opening 401 by expansion bolts. The inner core 301 has an edge groove 302 on one side corresponding to the interior side, and a first step on the other side. The inner fitting 304 extends from the indoor side to the outdoor side and has a first edge portion 305, a door frame portion 309, a door panel assembly portion 306 and a second edge portion 307 in sequence. The first edge portion 305 is inserted into the edge groove 302. The door panel assembly portion 306 is recessed into the wall of the door opening 401 relative to the door frame portion 309 so that when the first edge portion 305 is engaged in the edge groove 302, it is engaged in the first step portion to position the inner fitting 304. The door frame portion 309 is attached to the inner core 301. The second edge portion 307 extends to the outdoor side of the building wall 40 for structural edge sealing. It also includes an inner door edge trim 20, which is C-shaped and has two free ends, namely a third edge trim 201 and a fourth edge trim 202. The third edge trim 201 is inserted into the edge trim groove 302 and fits tightly with the first edge trim 305 and the edge trim groove 302. The fourth edge trim 202 extends to the interior side of the building wall 40 for structural edge sealing.

[0028] See attached document Figure 1-3In the above embodiment, the inner core 301 is first fixed in the door opening 401 by expansion bolts, and then the inner sleeve 304 is installed. When the inner sleeve 301 is installed, the first edge portion 305 is first inserted into the edge groove 302, and then the inner sleeve 304 is pressed until the recess of the door panel assembly portion 306 engages with the first step portion. At this time, the door frame portion 309 is attached to the inner core 301. It can be understood that both the inner core 301 and the inner sleeve 304 have two sides and a top surface to match the door opening 401. In order to ensure the installation is stable, the back of the door frame portion 309 can be coated with glue for further bonding and fixing after assembly. Subsequently, the third edge section 201 of the inner door edge strip 20 is inserted into the edge groove 302. The third edge section 201 is inserted into the edge groove 302 and fits tightly with the first edge section 305 and the edge groove 302 to complete the assembly and fixing of the integrated prefabricated steel door frame structure. This integrated prefabricated steel door frame structure achieves a unified design between the inner door edge strip 20 and the integrated door frame 30 through the integrated design of the integrated door frame 30 and the insertion and assembly of the edge groove 302 and the inner door edge strip 20. On-site, it realizes a fully assembled dry construction method, which is convenient and quick to install.

[0029] Continue to refer to the appendix Figure 1-3 In this embodiment, the exterior side of the building wall 40 is also provided with an exterior decorative element 50, which includes: There are two first C-shaped keels 501, which are symmetrically fixed to the exterior side of the building wall 40 by expansion bolts, and one of the first C-shaped keels 501 has a first interlocking gap 503 between it and the second edge part 307. The first decorative panel 502 has a fifth edge portion at both ends, and one of the fifth edge portions is inserted into the interlocking gap 503 to fix the first decorative panel 502 to the exterior side of the building wall 40, while the other fifth edge portion is attached to the exterior side of the building wall 40 for structural edge sealing.

[0030] Continue to refer to the appendix Figure 1-3 In this embodiment, the exterior side of the building wall 40 is also symmetrically provided with door jambs 70, and the outer decorative piece 50 is also provided with a door jamb decorative piece 60 on the side opposite to the integrated door frame 30. The door jamb decorative piece 50 includes: The U-shaped keel 601 is set parallel to the C-shaped keel 501 and is fixed to the exterior side of the building wall 40 by expansion bolts. The second decorative panel 602 has a sixth edge portion 6021 at both ends. One of the sixth edge portions 6021 is inserted into the U-shaped keel 601 to fix the second decorative panel 602 to the door jamb portion 70, and the other sixth edge portion 6021 extends to the outside of the door jamb portion 70 for structural edge sealing.

[0031] Continue to refer to the appendix Figure 1-3 In this embodiment, the second decorative panel 602 and another first C-shaped keel 501 also have a first fastening gap 503 that is used to fix the fifth edge part.

[0032] In the above embodiment, after the integrated door frame 30 and the inner door edge trim 20 are assembled, the spacing is measured, and the first C-shaped keel 501 and the U-shaped keel 601 are installed with expansion bolts. Then, the first decorative panel 502 and the second decorative panel 602 are sequentially snapped into place, completing the integrated design and assembly of the outer decorative part 50 and the door jamb decorative part 60 with the integrated door frame 30 on the exterior side of the building wall 40. On-site, the fully assembled dry construction method is realized, and the installation is convenient and quick.

[0033] Figure 4 This is a vertical cross-sectional view of an integrated steel door according to an exemplary embodiment. (Continue referring to the appendix...) Figure 1-4 The integrated door frame 30 has a door head piece on the top of the exterior side of the building wall 40. The upper part of the door head piece is also provided with a top protection plate 90. The top protection plate 90 is horizontally fixed to the lower side of the exterior ceiling by several corner brackets 901. A second interlocking gap is formed between the top protection plate 90 and the integrated door frame 30.

[0034] The storefront components include: There are two second C-shaped keels 801, which are symmetrically fixed to the exterior side of the building wall 40 by expansion bolts. One of the C-shaped keels 501 has a second interlocking gap between it and the second edge part 307, and the other C-shaped keel 501 has a second interlocking gap between it and the roof panel 90. The door panel 80 has a seventh edge section at both ends, and both seventh edge sections are inserted into the second interlocking gap to fix the door panel 80 to the exterior side of the building wall 40.

[0035] In the technical solutions of the above embodiments, please refer to the appendix. Figure 4 After the integrated door frame 30 and inner door edge trim 20 are assembled, the top protection plate 90 is first installed on the top of the exterior side of the integrated door frame 30. Then, the spacing is measured, and the second C-shaped keel 801 is installed with expansion bolts to fit the headboard 80. This completes the integrated design and assembly of the headboard and the integrated door frame 30 on the exterior side of the building wall 40. The entire assembly dry construction method is realized on site, making the installation convenient and quick.

[0036] In summary, the integrated prefabricated steel door frame structure provided by this utility model embodiment achieves a unified design between the inner door edge strip 20 and the integrated door frame 30 through the integrated design of the integrated door frame 30 and the insertion assembly of the edge groove 302 and the inner door edge strip 20; and achieves a unified design between the outer decorative part 50, the door jamb decorative part 60 and the door head part and the integrated door frame 30 through the snap-fit ​​assembly of the outer decorative part 50, the door jamb decorative part 60 and the door head part, enabling full assembly dry construction on site, and unifying the design of the outer decorative door frame and the inner door frame, making installation convenient and quick.

[0037] Example 2: This utility model provides an integrated steel door, including the integrated prefabricated steel door frame structure of Example 1, and a steel door 10 assembled within the integrated prefabricated steel door frame structure by a plurality of components.

[0038] Continue to refer to the appendix Figure 3 In this embodiment, the door panel assembly part 306 is also equipped with a sealing and sound insulation strip 308 that cooperates with the edge of the steel door 10.

[0039] Other undescribed structures are described in Example 1.

[0040] In summary, the integrated prefabricated steel door frame structure and integrated steel door provided by this utility model embodiment, through the integrated design of the integrated door frame 30, combined with the insertion assembly of the edge groove 302 and the inner door edge strip 20, achieves a unified design between the inner door edge strip 20 and the integrated door frame 30; combined with the snap-fit ​​assembly of the outer decorative part 50, the door jamb decorative part 60 and the door head part, achieves a unified design between the outer decorative part 50, the door jamb decorative part 60 and the door head part and the integrated door frame 30, realizing full assembly dry construction on site, unifying the design of the outer decorative door frame and the inner door frame, making installation convenient and quick.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An integrated prefabricated steel door frame structure, which is assembled with a pre-set door opening on a building wall, characterized in that, It includes an integrated door frame, which is disposed within the door opening and includes at least an inner core and an inner sleeve; The inner core component has a back rib on one side corresponding to the door opening, and the back rib is fixed to the wall of the door opening by expansion bolts. The inner core component has a finishing groove on one side corresponding to the interior side, and a first step on the other side. The inner fitting has a first edge portion, a door frame portion, a door panel assembly portion and a second edge portion extending from the indoor side to the outdoor side. The first edge portion is inserted into the edge groove. The door panel assembly portion is recessed into the wall of the door opening relative to the door frame portion, so that when the first edge portion is engaged in the edge groove, it is engaged in the first step portion to position the inner fitting. The second edge portion extends to the outdoor side of the building wall for structural edge sealing. It also includes an inner door edge trim strip, which is C-shaped and has a third edge trim section and a fourth edge trim section at its two free ends. The third edge trim section is inserted into the edge trim groove and fits tightly with the first edge trim section and the edge trim groove. The fourth edge trim section extends to the interior side of the building wall for structural edge sealing.

2. The integrated prefabricated steel door frame structure as described in claim 1, characterized in that, The exterior side of the building wall is also provided with an exterior decorative component, which includes: The first C-shaped keel, numbered two, is symmetrically fixed to the exterior side of the building wall by expansion bolts, and one of the first C-shaped keels has a first interlocking gap between it and the second edge trim. The first decorative panel has a fifth edge portion at both ends, and one of the fifth edge portions is inserted into the interlocking gap to fix the first decorative panel to the exterior side of the building wall, while the other fifth edge portion is attached to the exterior side of the building wall for structural edge sealing.

3. The integrated prefabricated steel door frame structure as described in claim 2, characterized in that, The exterior side of the building wall is also symmetrically provided with door jambs, and the outer decorative component is also provided with a door jamb decorative component on the side opposite to the integrated door frame. The door jamb decorative component includes: The U-shaped keel is arranged parallel to the C-shaped keel and is fixed to the exterior side of the building wall by expansion bolts; The second decorative panel has a sixth edge portion at both ends, and one of the sixth edge portions is inserted into the U-shaped keel to fix the second decorative panel to the door jamb, while the other sixth edge portion extends to the outside of the door jamb for structural edge sealing.

4. The integrated prefabricated steel door frame structure as described in claim 3, characterized in that, The second decorative panel also has a first snap-fit ​​gap between itself and another of the first C-shaped keels to cooperate with the fifth edge portion for insertion and fixation.

5. The integrated prefabricated steel door frame structure as described in claim 1, characterized in that, The integrated door frame is provided with a door head piece on the top of the exterior side of the building wall. The upper part of the door head piece is also provided with a top protection plate. The top protection plate is horizontally fixed to the lower side of the exterior ceiling by several corner brackets. A second interlocking gap is formed between the top protection plate and the integrated door frame.

6. The integrated prefabricated steel door frame structure as described in claim 5, characterized in that, The door frame includes: The second C-shaped keel, in quantity two, is symmetrically fixed to the exterior side of the building wall by expansion bolts, and there is a second interlocking gap between one of the C-shaped keels and the second edge trim, and between the other C-shaped keel and the roof panel; The door panel has a seventh edge portion at both ends, and both seventh edge portions are inserted into the second fastening gap to fix the door panel to the exterior side of the building wall.

7. An integrated steel door, characterized in that, It includes the integrated prefabricated steel door frame structure as described in any one of claims 1-6, and a steel door assembled within the integrated prefabricated steel door frame structure by a plurality of A-type components.

8. The integrated steel door as described in claim 7, characterized in that, The door panel assembly is also fitted with a sealing and soundproofing strip that matches the edge of the steel door.

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