Integrated wall steel invisible door

Abstract

This invention discloses an integrated steel concealed door, comprising an inner frame, an outer frame, a decorative door panel, and a door lock assembly. The outer frame is fitted over the inner frame, and the decorative door panel is located on the front of the inner frame. This invention forms a double-layer composite frame structure by fitting the inner frame inside the outer frame. Fire-resistant rock panels are installed on the front and back of the inner frame, and a rubber sound-insulating pad is installed on the inner side of the inner frame. Waterproof rock wool is filled in the space between the decorative door panel and the outer frame on the back of the decorative door panel, giving the door multi-layered composite protective properties. The elastic damping structure of the rubber sound-insulating pad effectively blocks the transmission of sound waves inside the door. The flat heat-insulating structure of the fire-resistant rock panel slows down the penetration of flames and high temperatures into the door. The waterproof treatment of the rock wool, with its board-like structure, blocks the penetration of water vapor and moisture. The synergistic cooperation of these three functional layers gives the door excellent protective capabilities in terms of sound insulation, fire resistance, and waterproofing.

Description

Technical Field

[0001] This invention relates to the field of steel concealed doors for building doors and windows, and specifically to steel concealed doors with integrated walls. Background Technology

[0002] With the continuous development of modern architectural design concepts, the integrity and aesthetics of interior spaces have received increasing attention. As a type of door structure that can be integrated with the wall, hidden doors have been widely used in high-end residences, commercial spaces, and public buildings.

[0003] However, existing steel door products still have many shortcomings in practical use. On the one hand, the door leaf of traditional steel doors is directly exposed to the outside of the wall, with a significant height difference and visual separation between it and the wall, making it difficult to achieve an integrated effect with the wall and failing to meet the decorative needs of modern interior design for hidden doors.

[0004] On the other hand, traditional steel doors generally lack effective sound insulation, fireproofing and waterproofing composite protective structures. The door body does not have a special sound insulation layer and fireproof heat insulation layer. Under the background of increasingly strict building fire protection requirements, it is difficult to meet the requirements of relevant safety regulations.

[0005] Therefore, it is necessary to invent an integrated steel concealed door to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an integrated steel concealed door to address the aforementioned shortcomings in the technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an integrated wall steel concealed door, comprising an inner frame, an outer frame, a decorative door panel, and a door lock assembly. The outer frame is fitted around the outer frame of the inner frame, and a decorative door panel is provided on the front of the inner frame. A door lock assembly is provided inside the same side of the outer frame and the inner frame. The decorative door panel has protrusions around its front, and a decorative leveling groove is formed between the protrusions around the front and the front of the decorative door panel.

[0008] Multiple shelves are horizontally fixedly installed from top to bottom in the middle of the inner frame. Multiple rubber sound insulation pads are installed between the shelves and the inner side of the inner frame. Fireproof rock plates are installed on the front and back of the inner frame and between the outer sides of the rubber sound insulation pads.

[0009] Waterproof rock wool is installed on the back of the decorative door panel. The waterproof rock wool is attached to the front exterior of the inner frame. A groove is provided on the back of the outer frame, and an inner decorative panel is installed in the groove.

[0010] As a preferred embodiment of the present invention, the door lock assembly includes a main bolt, an anti-pry bolt, and a lock cylinder. The main bolt and the anti-pry bolt are retractably inserted into the side wall of the outer frame, the lock cylinder is installed on the decorative door panel, and the keyhole of the lock cylinder is circular. The control handles of the main bolt and the anti-pry bolt are located outside the inner decorative panel.

[0011] As a preferred embodiment of the present invention, the inner frame includes an outer vertical frame and an inner vertical frame, and the inner vertical frame and the outer vertical frame enclose a plurality of independent rectangular installation spaces. The shelf has an H-shaped structure and is fixedly installed between the outer vertical frame and the inner vertical frame.

[0012] As a preferred embodiment of the present invention, the decorative door panel covers the outer sides of the inner frame and the outer frame, and the edge of the decorative door panel is provided with a plurality of threaded holes. The decorative door panel is fixedly connected to the front of the inner frame by fasteners passing through the threaded holes, and the protrusions around the front of the decorative door panel are made of wood.

[0013] As a preferred embodiment of the present invention, the rubber sound insulation pad is a sheet-like elastic structure and is made of flame-retardant butyl rubber, the fireproof rock board is a flat structure, the waterproof rock wool is a waterproof-treated rock wool board structure, and the waterproof rock wool is filled in the interlayer space between the decorative door panel and the outer frame.

[0014] As a preferred embodiment of the present invention, the main lock tongue is a slanted columnar structure, one end of the main lock tongue is a slanted cut surface, the main lock tongue is squeezed and retracted when the door is closed, and automatically pops out after reaching its position, and there are multiple anti-pry lock tongues, the multiple anti-pry lock tongues are arranged vertically, and the multiple anti-pry lock tongues are synchronously extended or retracted by the lock cylinder linkage control.

[0015] As a preferred embodiment of the present invention, the outer surface of the decorative door panel is further provided with decorative stripes, the decorative stripes being a multi-group parallel concave-convex stripe structure, the decorative stripes being integrally formed on the surface of the decorative door panel, and the inner frame further including a bottom edge seal, the bottom edge seal being a strip structure, and the bottom edge seal being attached to the underside of the transverse reinforcing member at the bottom of the inner frame.

[0016] As a preferred embodiment of the present invention, the inner frame is provided with an edge portion around the front side, the edge portion abutting against and fitting against the back of the decorative door panel, and the threaded hole of the decorative door panel corresponds to the position of the edge portion.

[0017] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0018] 1. A double-layer composite frame structure is formed by an inner frame nested inside an outer frame. Fireproof rock panels are installed on the front and back of the inner frame, and rubber sound insulation pads are installed on the inner side of the inner frame. Waterproof rock wool is installed on the back of the decorative door panel and filled in the space between the decorative door panel and the outer frame. This gives the door a multi-layer composite protective performance. The elastic damping structure of the rubber sound insulation pad effectively blocks the transmission of sound waves inside the door. The flat heat insulation structure of the fireproof rock panel slows down the penetration of flames and high temperatures into the door. The waterproof treatment of the rock wool and the board structure of the waterproof rock wool block the penetration of water vapor and moisture. The synergistic cooperation of the three functional layers gives the door excellent protection capabilities in terms of sound insulation, fire resistance and waterproofing.

[0019] 2. By covering the outer sides of the inner and outer frames with decorative door panels, the outer surface of the decorative door panels is flush with the wall finish, with no obvious protrusions or height differences between the door and the wall, achieving an integrated and invisible effect between the door and the wall. The raised parts around the front of the decorative door panel and the leveling groove formed between the front of the decorative door panel facilitate the embedding and leveling of the wall finish material, making the transition between the door edge and the wall more natural and smooth. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a first-view perspective perspective view of the overall structure of the present invention;

[0022] Figure 2 This is a second-view perspective perspective view of the overall structure of the present invention;

[0023] Figure 3 This is a first-view exploded view of the overall structure of the present invention;

[0024] Figure 4 This is a second-view exploded view of the overall structure of the present invention;

[0025] Figure 5 This is a perspective view of the internal frame of the present invention;

[0026] Figure 6 This is a side view of the overall structure of the present invention;

[0027] Figure 7 For the present invention Figure 1 Enlarged view of area A.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Inner frame; 11. Shelf; 12. Rubber sound insulation pad; 13. Fireproof rock board; 14. Edge; 2. Outer frame; 21. Groove; 22. Inner decorative panel; 3. Finished door panel; 31. Waterproof rock wool; 32. Threaded hole; 33. Finished surface leveling groove; 34. Protrusion; 4. Door lock assembly; 41. Main bolt; 42. Anti-pry bolt; 43. Lock cylinder. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] This invention provides, for example Figure 1-7 The integrated steel concealed door shown includes an inner frame 1, an outer frame 2, a decorative door panel 3, and a door lock assembly 4. The outer frame 2 is fitted around the outer side of the inner frame 1. The decorative door panel 3 is provided on the front side of the inner frame 1. The door lock assembly 4 is provided on the same side of the outer frame 2 and the inner frame 1. The decorative door panel 3 has protrusions 34 around its front side. A decorative leveling groove 33 is formed between the protrusions 34 and the front side of the decorative door panel 3.

[0032] Multiple shelves 11 are horizontally fixedly installed from top to bottom in the middle of the inner frame 1. Multiple rubber sound insulation pads 12 are installed between the shelves 11 and the inner side of the inner frame 1. Fireproof rock plates 13 are installed on the front and back of the inner frame 1 and between the outer sides of the rubber sound insulation pads 12.

[0033] Waterproof rock wool 31 is installed on the back of the decorative door panel 3. The waterproof rock wool 31 is attached to the front exterior of the inner frame 1. A groove 21 is provided on the back of the outer frame 2. An inner decorative panel 22 is installed in the groove 21.

[0034] In this embodiment, the inner frame 1 serves as the basic load-bearing skeleton of the door, embedded in the pre-reserved door opening in the wall. The outer frame 2 is fitted over the inner frame 1 from the outside, with its outer surface flush with the wall finish layer, forming a transition interface between the door and the wall. The decorative door panel 3 is fixedly installed on the front of the inner frame 1, with its outer surface on the same plane as the outer surface of the outer frame 2, creating a unified visual effect between the door and the wall when closed. The front of the decorative door panel 3 has protrusions 34 around its perimeter, forming a surface leveling groove 33 between the protrusions 34 and the front of the decorative door panel 3. During construction, the wall finish material can extend and embed into the surface leveling groove 33, achieving a seamless connection between the door edge and the wall.

[0035] Inside the door, multiple shelves 11 are installed horizontally in the middle of the inner frame 1. Rubber sound insulation pads 12 are filled between the shelves 11 and the inner wall of the inner frame 1. The rubber sound insulation pads 12 are elastically deformed by the pressure of the inner wall of the frame and are tightly attached to the surface of the frame to form an elastic damping sound insulation layer.

[0036] Fireproof rock wool 13 is covered on the outside of the rubber sound insulation pad 12, that is, on the front and back of the inner frame 1. The fireproof rock wool 13 and the rubber sound insulation pad 12 work together to form a fireproof and heat insulation barrier inside the door. Waterproof rock wool 31 is fixedly installed on the back of the decorative door panel 3. The outer side of the waterproof rock wool 31 is in close contact with the back of the decorative door panel 3, and the inner side is in contact with the outside of the front of the inner frame 1, forming a waterproof and moisture-proof layer on the front of the door.

[0037] Furthermore, in the above technical solution, the door lock assembly 4 includes a main bolt 41, an anti-pry bolt 42, and a lock cylinder 43. The main bolt 41 and the anti-pry bolt 42 are telescopically inserted into the side wall of the outer frame 2, and the lock cylinder 43 is installed on the decorative door panel 3. The keyhole of the lock cylinder 43 is circular. The control handles of the main bolt 41 and the anti-pry bolt 42 are located outside the inner decorative panel 22.

[0038] In this embodiment, the lock cylinder 43 is installed in a pre-drilled hole on the decorative door panel 3. The keyhole of the lock cylinder 43 is circular. The lock cylinder 43 is connected to the main bolt 41 and each anti-pry bolt 42 through an internal transmission mechanism. When the user inserts the key into the lock cylinder 43 and turns it, the lock cylinder 43 simultaneously drives the main bolt 41 and all anti-pry bolts 42 to extend or retract synchronously through the transmission mechanism, thereby locking and unlocking the door. The control handles of the main bolt 41 and the anti-pry bolts 42 pass through pre-drilled holes on the inner decorative panel 22. The end of the control handle is located on the outside of the inner decorative panel 22. The user can open the door from the inside by directly operating the control handle without using a key.

[0039] Furthermore, in the above technical solution, the inner frame 1 includes a vertical outer frame and an inner frame, and the inner frame and the outer frame enclose multiple independent rectangular installation spaces. The shelf 11 has an H-shaped structure and is fixedly installed between the outer frame and the inner frame.

[0040] In this embodiment, the inner frame 1 is composed of an outer vertical frame and an inner vertical frame arranged vertically. The outer vertical frame is located at the outer boundary of the door, and the inner vertical frame is located inside the outer vertical frame. The outer and inner vertical frames are fixedly connected by a horizontal connector. After being enclosed, they form multiple independent rectangular installation spaces arranged vertically. Each rectangular installation space is used to install functional components such as shelves 11, rubber sound insulation pads 12, or fireproof rock panels 13. The shelves 11 have an H-shaped cross-section structure. The upper and lower wings of the shelves 11 respectively mate with the corresponding mounting slots on the outer and inner vertical frames. The two ends of the shelves 11 are fixedly connected to the outer and inner vertical frames respectively by fasteners.

[0041] The central recessed area of ​​the H-shaped structure forms a storage space for items, enabling storage inside the door. The shelving unit 11 is installed horizontally through each rectangular installation space, dividing the interior of the inner frame 1 vertically into multiple independent functional areas. Different filling materials can be configured in each area, making the internal structure of the door clearly layered and functionally divided.

[0042] Furthermore, in the above technical solution, the decorative door panel 3 covers the outer side of the inner frame 1 and the outer frame 2. The edge of the decorative door panel 3 is provided with multiple threaded holes 32. The decorative door panel 3 is fixedly connected to the front of the inner frame 1 by fasteners passing through the threaded holes 32. The protrusions 34 around the front of the decorative door panel 3 are made of wood.

[0043] In this embodiment, the protrusions 34 around the front of the decorative door panel 3 are made of wood. The protrusions 34 are positioned along the perimeter of the decorative door panel 3. The decorative leveling groove 33 formed between the protrusions 34 and the front of the decorative door panel 3 is a recessed area. During construction, the decorative leveling groove 33 can be filled with the same decorative material as the wall surface, so that when the door is closed, the outer surface of the protrusions 34 is flush with the wall surface, achieving an integrated and invisible effect between the door and the wall. The wooden protrusions 34 have good processing performance and decorative texture, and can be surface coated or textured according to design requirements.

[0044] Furthermore, in the above technical solution, the rubber sound insulation pad 12 is a sheet-like elastic structure and is made of flame-retardant butyl rubber, the fireproof rock board 13 is a flat structure, and the waterproof rock wool 31 is a rock wool board structure that has been waterproofed. The waterproof rock wool 31 is filled in the interlayer space between the decorative door panel 3 and the outer frame 2.

[0045] In this embodiment, the rubber sound insulation pad 12 is a sheet-like elastic structure made of flame-retardant butyl rubber material, which has good elasticity and flame-retardant properties. The rubber sound insulation pad 12 is installed in the gap between the shelf 11 and the inner side wall of the inner frame 1. After installation, the rubber sound insulation pad 12 undergoes elastic compression deformation under the pressure of the two side frame walls, tightly adhering to the inner wall of the frame and the surface of the shelf 11, forming a continuous elastic sound insulation layer, effectively blocking the transmission of sound waves in the solid structure inside the door.

[0046] The fireproof rock panel 13 is a flat structure that covers the front and back of the inner frame 1 respectively. The fireproof rock panel 13 is located on the outside of the rubber sound insulation pad 12. The surface of the fireproof rock panel 13 is parallel to the front and back of the inner frame 1. When the door is exposed to fire, the fireproof rock panel 13 acts as a heat insulation barrier, delaying the penetration of flames and high temperature into the interior of the door.

[0047] Waterproof rock wool 31 is a waterproof-treated rock wool board structure. Waterproof rock wool 31 is filled in the interlayer space between the decorative door panel 3 and the outer frame 2. One side of the waterproof rock wool 31 is attached to the back of the decorative door panel 3, and the other side is attached to the inner side of the outer frame 2. The waterproof treatment layer of the waterproof rock wool 31 is set towards the outer surface of the decorative door panel 3, so that the waterproof rock wool 31 can not only have the function of heat insulation, but also block the penetration of external water vapor and moisture into the door body, protecting the internal structure of the door from moisture erosion.

[0048] Furthermore, in the above technical solution, the main bolt 41 is a slanted columnar structure, with one end of the main bolt 41 having a slanted cut surface. When the door is closed, the main bolt 41 is squeezed and retracted, and automatically pops out after reaching its position. There are multiple anti-pry bolts 42, which are arranged vertically. The multiple anti-pry bolts 42 are linked and controlled by the lock cylinder 43 to extend or retract synchronously.

[0049] Furthermore, in the above technical solution, the outer surface of the decorative door panel 3 is also provided with decorative stripes. The decorative stripes are multiple sets of parallel distributed concave and convex stripe structures. The decorative stripes are integrally formed on the surface of the decorative door panel 3. The inner frame 1 also includes a bottom edge seal. The bottom edge seal is a strip structure and is attached to the bottom of the horizontal reinforcing member at the bottom of the inner frame 1.

[0050] In this embodiment, the outer surface of the decorative door panel 3 is also provided with multiple sets of decorative stripes. The decorative stripes are parallel distributed concave and convex stripe structures. The decorative stripes are integrally formed on the surface of the decorative door panel 3 during the molding process. The decorative stripes extend along the length direction of the decorative door panel 3. Multiple sets of decorative stripes form a regularly arranged concave and convex texture on the outer surface of the decorative door panel 3, which not only plays a decorative and beautifying role, but also enhances the three-dimensionality and texture layer of the surface of the decorative door panel 3 through the concave and convex structure.

[0051] The inner frame 1 also includes a bottom edge banding, which is a strip structure. The bottom edge banding is attached to the bottom of the horizontal reinforcing member of the inner frame 1. The bottom edge banding extends along the lower surface of the horizontal reinforcing member of the inner frame 1. The bottom edge banding is fixedly connected to the lower surface of the horizontal reinforcing member by fasteners. The bottom edge banding closes the opening area at the bottom of the inner frame 1, preventing dust and debris from entering the door body from the bottom. At the same time, the cooperation between the bottom edge banding and the horizontal reinforcing member further enhances the structural rigidity of the bottom area of ​​the inner frame 1, making the bottom of the door body less prone to deformation and sinking during long-term use.

[0052] Furthermore, in the above technical solution, the inner frame 1 has an edge portion 14 around its front side, the edge portion 14 abuts against and fits against the back of the decorative door panel 3, and the threaded hole 32 of the decorative door panel 3 corresponds to the position of the edge portion 14.

[0053] In this embodiment, when the decorative door panel 3 is installed on the front of the inner frame 1, the back of the decorative door panel 3 abuts against the outer surface of the edge portion 14, and the edge portion 14 provides a uniform support surface for the back of the decorative door panel 3, so that the decorative door panel 3 maintains a stable fit with the front of the inner frame 1 after installation.

[0054] The threaded holes 32 on the edge of the decorative door panel 3 correspond to the corresponding holes on the edge portion 14. Fasteners pass through the threaded holes 32 of the decorative door panel 3 and are directly screwed into the corresponding holes on the edge portion 14. The edge portion 14 provides sufficient screwing depth and fixing strength for the fasteners, ensuring a firm and reliable connection between the decorative door panel 3 and the inner frame 1. The edge portion 14 also provides a clear positioning reference for the decorative door panel 3 during installation, allowing installers to accurately align the decorative door panel 3 along the outer contour of the edge portion 14, improving installation efficiency and accuracy.

[0055] The integrated wall steel concealed door provided by this invention operates as follows:

[0056] When closing the door, as the door moves from the open to the closed state, it rotates around the hinges on the outer frame 2 towards the door opening, and the outer surface of the decorative door panel 3 gradually approaches the wall. When the door is fully closed, the outer surface of the decorative door panel 3 is flush with the outer side of the outer frame 2, and the entire door integrates with the wall. During the closing process, the beveled surface of the main latch 41 first contacts the strike plate on the door frame. The strike plate applies pressure to the beveled surface, and the main latch 41 retracts inward along the guide hole on the side wall of the outer frame 2. When the door is fully closed, the main latch 41 automatically pops out under the drive of the internal spring mechanism, and its front end is embedded in the lock hole of the strike plate to complete the automatic locking of the main lock. At the same time, multiple vertically arranged anti-pry latches 42 extend synchronously under the drive of the linkage mechanism of the lock cylinder 43, and are respectively embedded in the corresponding lock holes at the upper and lower ends of the door frame, forming a locking state with the main latch 41 that locks at multiple points in both the horizontal and vertical directions, so that the door has locking protection in multiple directions.

[0057] When opening the door from the outside, the user inserts the key into the circular keyhole of the lock cylinder 43 on the decorative door panel 3 and turns it. The lock cylinder 43, through its internal transmission mechanism, simultaneously drives the main bolt 41 and all anti-pry bolts 42 to retract synchronously. Each bolt exits from the keyhole in the door frame, releasing the door from its locked state. The user can then push the door leaf to open it outwards around the hinges. When opening the door from the inside, the user directly operates the control handle on the outside of the interior decorative panel 22. The control handle, through its transmission mechanism, drives the main bolt 41 and anti-pry bolts 42 to retract synchronously, unlocking and opening the door without the need for a key.

[0058] During daily use, the rubber sound insulation pad 12 inside the inner frame 1 continuously blocks the transmission of sound waves within the solid structure of the door through its elastic damping structure, thus playing a role in sound insulation and noise reduction. The fireproof rock slab 13 provides heat insulation under normal conditions. In the event of a fire, the flat heat insulation structure of the fireproof rock slab 13 slows the penetration of flames and high temperatures into the door body, buying time for evacuation. The waterproof layer of the waterproof rock wool 31 continuously prevents external moisture and humidity from penetrating into the door body, protecting the internal structures such as the rubber sound insulation pad 12, fireproof rock slab 13, and inner frame 1 from moisture erosion.

[0059] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An integrated steel concealed door, comprising an inner frame (1), an outer frame (2), a decorative door panel (3), and a door lock assembly (4), characterized in that: The inner frame (1) is fitted with an outer frame (2), and the front of the inner frame (1) is provided with a decorative door panel (3). The outer frame (2) and the inner frame (1) are provided with a door lock assembly (4) on the same side. The front of the decorative door panel (3) is provided with protrusions (34) around the perimeter, and a decorative leveling groove (33) is formed between the protrusions (34) around the perimeter and the front of the decorative door panel (3). Multiple shelves (11) are fixedly installed horizontally from top to bottom in the middle of the inner frame (1). Multiple rubber sound insulation pads (12) are installed between the shelves (11) and the inner side of the inner frame (1). Fireproof rock plates (13) are provided on the front and back of the inner frame (1) and between the outer sides of the rubber sound insulation pads (12). Waterproof rock wool (31) is installed on the back of the decorative door panel (3). The waterproof rock wool (31) is attached to the front exterior of the inner frame (1). A groove (21) is provided on the back of the outer frame (2). An inner decorative panel (22) is installed in the groove (21).

2. The integrated wall steel concealed door according to claim 1, characterized in that: The door lock assembly (4) includes a main bolt (41), a pry bolt (42), and a lock cylinder (43). The main bolt (41) and the pry bolt (42) are telescopically inserted into the side wall of the outer frame (2). The lock cylinder (43) is installed on the decorative door panel (3), and the keyhole of the lock cylinder (43) is circular. The control handles of the main bolt (41) and the pry bolt (42) are located outside the inner decorative panel (22).

3. The integrated wall steel concealed door according to claim 1, characterized in that: The inner frame (1) includes a vertical outer frame and an inner frame, and the inner frame and the outer frame enclose a number of independent rectangular installation spaces. The shelf (11) has an H-shaped structure and is fixedly installed between the outer frame and the inner frame.

4. The integrated wall steel concealed door according to claim 1, characterized in that: The decorative door panel (3) covers the outer side of the inner frame (1) and the outer frame (2). The edge of the decorative door panel (3) is provided with multiple threaded holes (32). The decorative door panel (3) is fixedly connected to the front of the inner frame (1) by fasteners passing through the threaded holes (32). The protrusions (34) around the front of the decorative door panel (3) are made of wood.

5. The integrated wall steel concealed door according to claim 1, characterized in that: The rubber sound insulation pad (12) is a sheet-like elastic structure and is made of flame-retardant butyl rubber. The fireproof rock board (13) is a flat structure. The waterproof rock wool (31) is a rock wool board structure that has been waterproofed. The waterproof rock wool (31) is filled in the interlayer space between the decorative door panel (3) and the outer frame (2).

6. The integrated wall steel concealed door according to claim 1, characterized in that: The main latch (41) is a slanted columnar structure. One end of the main latch (41) is a slanted cut surface. When the door is closed, the main latch (41) is squeezed and retracted, and automatically pops out after reaching its position. There are multiple anti-pry latches (42). The multiple anti-pry latches (42) are arranged vertically. The multiple anti-pry latches (42) are linked and controlled by the lock cylinder (43) to extend or retract synchronously.

7. The integrated wall steel concealed door according to claim 1, characterized in that: The outer surface of the decorative door panel (3) is also provided with decorative stripes. The decorative stripes are multiple sets of parallel concave and convex stripe structures. The decorative stripes are integrally formed on the surface of the decorative door panel (3). The inner frame (1) also includes a bottom edge seal. The bottom edge seal is a strip structure and is attached to the bottom of the horizontal reinforcing member at the bottom of the inner frame (1).

8. The integrated wall steel concealed door according to claim 1, characterized in that: The inner frame (1) has an edge portion (14) around its front side. The edge portion (14) abuts against and fits against the back of the decorative door panel (3), and the threaded hole (32) of the decorative door panel (3) corresponds to the position of the edge portion (14).

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