Veneer blank door structure and construction method thereof

Abstract

The invention discloses a decorative surface blank door structure and a construction method thereof, and relates to the technical field of decorative surface blank doors. The problems that a blank door structure cannot be flush with a decorative surface, and the overall decorative effect and attractiveness of the decorative surface are easily affected are solved. The device specifically comprises a mounting frame inserted into the inner wall of a decorative surface wall, a set of connecting frames are fixed to the outer wall of one side of the mounting frame, sliding blocks are slidably connected to the inner walls of the connecting frames, a door plate is fixed to the outer walls of one sides of the sliding blocks and inserted into the inner wall of the mounting frame, and a rectangular through hole is formed in the outer wall of one side of the door plate; the inner wall of the rectangular through hole is rotationally connected with a connecting rod through a damping rotating shaft; the mounting method comprises the following steps that firstly, a worker inserts the whole mounting frame into the mounting groove, and then the fixing plate is fixed to the inner wall of the mounting groove through bolts. No height difference exists between the whole mounting frame and the door plate and the outer wall of the decorative surface wall, no gap exists in the surface, and the overall smoothness and attractiveness of the outer wall of the decorative surface wall are improved.

Description

Technical Field

[0001] The invention relates to the technical field of decorative surface hidden doors, and in particular to a decorative surface hidden door structure and a construction method thereof. Background Art

[0002] In high-rise buildings, large shopping malls, factories, hotels and other crowded places, it is often necessary to set up hidden doors on the interior decorative surfaces of the buildings, and install distribution boxes or fire-fighting equipment and other facilities inside the hidden doors. However, the existing hidden doors are usually very heavy, and it is inconvenient to open and close them. In addition, a large gap needs to be reserved between the hidden doors and the wall, which affects the integrity and aesthetics of the project.

[0003] To solve the above problems, after searching, a Chinese patent application number CN202310962122.8 discloses a double-faced hidden door system and its installation method, including an inner frame, an outer frame and an inner frame, the outer frame is enclosed along the circumference of the inner frame to form a closed frame, and the inner frame is connected in the closed frame. However, since the above technical solution still needs to use bolts to fix the hidden door on the decorative surface, the hidden door as a whole will still protrude a certain distance from the decorative surface. There is also a problem that the hidden door structure cannot be flush with the decorative surface, which is easy to affect the overall decorative effect and aesthetics of the decorative surface. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a decorative hidden door structure and a construction method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A decorative hidden door structure comprises an installation frame inserted into the inner wall of the decorative surface wall, a group of connecting frames are fixed to the outer wall of one side of the installation frame, a slider is slidably connected to the inner wall of the connecting frame, a door panel is fixed to the outer wall of one side of the slider, the door panel is inserted into the inner wall of the installation frame, a rectangular through hole is opened on the outer wall of one side of the door panel, a connecting rod is rotatably connected to the inner wall of the rectangular through hole through a damping shaft, a rotating plate is fixed to the outer wall of the connecting rod, a group of air bags are fixed to the outer wall of the door panel, a first pressure plate is fixed to the outer wall of the air bag, a push block is fixed to the outer wall of the first pressure plate, a group of cylinders are fixed to the outer wall of one side of the slider, a trapezoidal plug-in block is fixed to the output shaft of the cylinder, and slots are respectively opened on the outer walls of both sides of the connecting frame.

[0006] Preferably: a clamping plate is fixed to the outer wall of one side of the sliding block, a second air valve is arranged on the outer wall of the clamping plate, and the second air valve is connected to the input end of the cylinder through a pipeline.

[0007] Further: a first air valve is arranged on the outer wall of the first pressure plate, the first air valve is connected to the airbag through a pipeline, the first air valve and the second air valve are connected through an air supply pipeline, and a push reset mechanism is arranged on the outer walls on both sides of the push block.

[0008] Further preferably, an outer wall on one side of the decorative wall is provided with an installation groove and a reserved groove, an outer wall on one side of the installation frame is fixed with a set of fixing plates, the outer wall of the fixing plates is provided with fixing holes, and the fixing plates are fixed to the inner wall of the installation groove by bolts.

[0009] As a preferred embodiment of the present invention: the pushing and resetting mechanism includes a supporting groove, a spring and a second pressure plate, the supporting groove is arranged on an outer wall of one side of the door panel, the spring is fixed on the inner wall of the supporting groove, the second pressure plate is respectively fixed on the outer walls of both sides of the door panel, and the outer wall of one side of the spring is fixed on the outer wall of the second pressure plate.

[0010] As a further preferred embodiment of the present invention: a group of guide frames are fixed to the outer wall of one side of the door panel, a group of connecting blocks are fixed to the outer wall of one side of the push block, the connecting block and the outer wall of the push block are rotatably connected to the first roller and the second roller, and the first roller and the second roller are rollingly connected to the inner wall of the guide frame.

[0011] As a further solution of the present invention: a second sealing ring is fixed to an outer wall on one side of the second pressing plate, and a first sealing ring is fixed to an outer wall on one side of the supporting groove.

[0012] On the basis of the above scheme: the outer wall of the push block is provided with a wear-resistant sheet, the outer wall of the second pressure plate is fixed with a guide block, and the guide block is slidably connected to the inner wall of the guide frame.

[0013] Based on the above solution, preferably: a rubber block and a friction pad are fixed to the outer wall of the rotating plate, and arc grooves are respectively opened on the inner walls of the upper and lower sides of the rectangular through hole.

[0014] A construction method for a decorative hidden door structure comprises the following steps: S1: The staff first inserts the installation frame as a whole into the installation slot, and then fixes the fixing plate to the inner wall of the installation slot with bolts; S2: Insert the door panel as a whole into the inner wall of the installation frame, and insert a set of sliders on one side of the door panel into the corresponding connection frames respectively; S3: Rotate the rotating plate as a whole so that the rotating plate as a whole fits against the inner wall of the rectangular through hole, shield and seal the rectangular through hole, and the installation of the hidden door structure can be completed.

[0015] The beneficial effects of the present invention are: 1. The push block will move toward one side of the door panel driven by the reset mechanisms on both sides, thereby driving the first pressure plate on the outer wall to squeeze the airbag. After the airbag is squeezed, the inner wall gas will be filled into the cylinder, thereby pushing the trapezoidal plug on one side of the cylinder output shaft to move forward until the trapezoidal plug is inserted into the inner wall of the slot as a whole. At this time, the door panel as a whole can be fixed inside the installation frame under the limit of the trapezoidal plug and the slot. At this time, there is no height difference between the installation frame and the door panel as a whole and the outer wall of the decorative wall, and there is no gap on the surface, which improves the overall smoothness of the outer wall of the decorative wall.

[0016] 2. When the staff needs to open the door panel, first push the rotating plate to rotate ninety degrees, so that the pushing block on one side is pushed away from the door panel through the rotating rotating plate, thereby pulling the airbag to expand through the first pressure plate. After the airbag expands, it will absorb the gas inside the cylinder, thereby driving the output shaft of the cylinder to recover, allowing the trapezoidal plug block to leave the inner wall of the slot. Then the staff can pull the rotating plate as a whole to pull the door panel out of the installation frame, and then use the corresponding facilities installed in the installation slot, so that the user only needs to rotate the rotating plate back and forth to complete the closing and opening of the door panel, which improves the convenience of using the hidden door structure.

[0017] 3. When the second pressure plate as a whole is driven by the spring to lean against one side of the support groove, the second sealing ring located on the outer wall of the second pressure plate will press against the first sealing ring on the outer wall of the support groove, thereby sealing the contact surface between the second pressure plate and the support groove, allowing the support groove to adsorb the second pressure plate through the internal negative pressure, thereby improving the overall stability of the push block.

[0018] 4. The arc groove can guide the rotating plate rotating on the inner wall of the rectangular through hole. At the same time, the rubber block can increase the friction between the rotating plate and the arc groove when the rotating plate blocks the inner wall of the rectangular through hole. At the same time, the staff can easily pull the door panel out of the installation frame through the rotating plate through the friction pad on the outer wall of the rotating plate.

[0019] 5. When the push block moves forward and backward driven by the spring and the rotating plate, it will drive the first roller and the second roller on the outer wall to roll back and forth on the inner wall of the guide frame, thereby guiding the push block when moving forward and backward, and improving the stability of the push block when moving forward and backward. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings: Figure 1 This is a schematic diagram of the main structure of a decorative hidden door structure proposed by the present invention; Figure 2 A schematic diagram of the installation frame structure of a decorative concealed door structure proposed by the present invention; Figure 3 A schematic diagram of the opening structure of a rotating plate of a decorative hidden door structure proposed by the present invention; Figure 4 A schematic diagram of a door panel structure of a concealed door structure provided by the present invention; Figure 5 A schematic diagram of a push block structure of a decorative hidden door structure proposed by the present invention; Figure 6 A schematic diagram of a supporting groove structure of a decorative hidden door structure proposed by the present invention; Figure 7 This is a schematic diagram of the second pressing plate structure of a decorative hidden door structure proposed by the present invention.

[0021] In the figure: 1 installation frame, 2 decorative surface wall, 3 door panel, 4 rotating plate, 5 connection frame, 6 reserved groove, 7 installation groove, 8 fixed plate, 9 rubber block, 10 friction pad, 11 connecting rod, 12 first air valve, 13 first pressure plate, 14 push block, 15 second pressure plate, 16 guide frame, 17 slider, 18 second air valve, 19 cylinder, 20 trapezoidal plug, 21 slot, 22 airbag, 23 spring, 24 support groove, 25 first sealing ring, 26 connection block, 27 rectangular through hole, 28 first roller, 29 second sealing ring, 30 wear-resistant sheet, 31 clamping plate, 32 second roller, 33 guide block, 34 arc groove, 35 fixing hole. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0026] In addition, the term "plurality" shall mean two or more.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Embodiment 1: A decorative hidden door structure and a construction method thereof, such as Figure 1-7 As shown, it includes an installation frame 1 plugged into the inner wall of the decorative surface wall 2, a group of connecting frames 5 are fixed to the outer wall of one side of the installation frame 1, a slider 17 is slidably connected to the inner wall of the connecting frame 5, a door panel 3 is fixed to the outer wall of one side of the slider 17, the door panel 3 is plugged into the inner wall of the installation frame 1, a rectangular through hole 27 is opened on the outer wall of one side of the door panel 3, a connecting rod 11 is rotatably connected to the inner wall of the rectangular through hole 27 through a damping shaft, a rotating plate 4 is fixed to the outer wall of the connecting rod 11, a group of air bags 22 are fixed to the outer wall of the air bags 22, a first pressing plate 13 is fixed to the outer wall of the first pressing plate 13, and a push block 14 is fixed to the outer wall of the first pressing plate 13. A group of cylinders 19 are fixed to the outer wall of one side of the slider 17, a trapezoidal plug-in block 20 is fixed to the output shaft of the cylinder 19, and slots 21 are respectively provided on the outer walls of both sides of the connecting frame 5; a clamping plate 31 is fixed to the outer wall of one side of the slider 17, and a second air valve 18 is provided on the outer wall of the clamping plate 31, and the second air valve 18 is connected to the input end of the cylinder 19 through a pipeline; a first air valve 12 is provided on the outer wall of the first pressure plate 13, and the first air valve 12 is connected to the air bag 22 through a pipeline, and the first air valve 12 and the second air valve 18 are connected through an air supply pipeline, and a push reset mechanism is provided on the outer walls of both sides of the push block 14; The outer wall of one side of the decorative wall 2 is provided with a mounting groove 7 and a reserved groove 6, and the outer wall of one side of the mounting frame 1 is fixed with a set of fixing plates 8, and the outer wall of the fixing plates 8 is provided with fixing holes 35, and the fixing plates 8 are fixed to the inner wall of the mounting groove 7 by bolts; The staff first inserts the installation frame 1 as a whole into the installation groove 7, and then fixes the fixing plate 8 to the inner wall of the installation groove 7 by bolts; then the door panel 3 is inserted into the inner wall of the installation frame 1 as a whole, so that a group of sliders 17 on one side of the door panel 3 are respectively inserted into the corresponding connection frames 5, and then the staff rotates the rotating plate 4 as a whole, so that the rotating plate 4 as a whole fits the inner wall of the rectangular through hole 27, and the rectangular through hole 27 is blocked and sealed. At this time, the outer wall on one side of the rotating plate 4 no longer squeezes the push block 14, and the push block 14 will push the door panel 3 driven by the reset mechanism on both sides. The first pressure plate 13 of the outer wall moves sideways, thereby driving the first pressure plate 13 of the outer wall to squeeze the airbag 22. After being squeezed, the airbag 22 will fill the inner wall gas into the cylinder 19, thereby pushing the trapezoidal plug 20 on one side of the output shaft of the cylinder 19 to move forward until the trapezoidal plug 20 is inserted into the inner wall of the card slot 21 as a whole. At this time, the door panel 3 as a whole can be fixed inside the installation frame 1 under the limitation of the trapezoidal plug 20 and the card slot 21. At this time, there is no height difference between the installation frame 1 and the door panel 3 as a whole and the outer wall of the decorative wall 2, and there is no gap on the surface, which improves the overall smoothness of the outer wall of the decorative wall 2; When the staff needs to open the door panel 3, they first push the rotating plate 4 to rotate ninety degrees, thereby pushing the push block 14 on one side away from the door panel 3 through the rotating rotating plate 4, thereby pulling the airbag 22 to expand through the first pressure plate 13. After the airbag 22 expands, it will absorb the gas inside the cylinder 19, thereby driving the output shaft of the cylinder 19 to be recovered, allowing the trapezoidal plug block 20 to leave the inner wall of the slot 21. Then the staff can pull the rotating plate 4 as a whole to pull the door panel 3 out of the installation frame 1, and can use the corresponding facilities installed in the installation slot 7, so that the user only needs to rotate the rotating plate 4 back and forth to complete the closing and opening of the door panel 3, thereby improving the convenience of using the hidden door structure.

[0029] like Figure 4-7 As shown, the pushing and resetting mechanism includes a supporting groove 24, a spring 23 and a second pressure plate 15. The supporting groove 24 is arranged on an outer wall of one side of the door panel 3, the spring 23 is fixed on the inner wall of the supporting groove 24, the second pressure plate 15 is respectively fixed on the outer walls of both sides of the door panel 3, and the outer wall of one side of the spring 23 is fixed on the outer wall of the second pressure plate 15; when the rotating plate 4 rotates to a position flush with the rectangular through hole 27, the support for the push block 14 will be released. At this time, the second pressure plate 15 as a whole will move toward the door panel 3 under the elastic force of the spring 23, thereby driving the push block 14 as a whole to move toward one side of the door panel 3 after the rotating plate 4 seals the rectangular through hole 27.

[0030] like Figure 4-7As shown, a group of guide frames 16 are fixed to the outer wall of one side of the door panel 3, and a group of connecting blocks 26 are fixed to the outer wall of one side of the push block 14. The connecting block 26 and the outer wall of the push block 14 are rotatably connected with the first roller 28 and the second roller 32, and the first roller 28 and the second roller 32 are rollingly connected to the inner wall of the guide frame 16; when the push block 14 moves back and forth driven by the spring 23 and the rotating plate 4, the first roller 28 and the second roller 32 of the outer wall will be driven to roll back and forth on the inner wall of the guide frame 16, thereby guiding the push block 14 when moving back and forth, and improving the stability of the push block 14 when moving back and forth.

[0031] like Figure 5-6 As shown, a second sealing ring 29 is fixed to the outer wall of one side of the second pressure plate 15, and a first sealing ring 25 is fixed to the outer wall of one side of the support groove 24; when the second pressure plate 15 as a whole leans against one side of the support groove 24 driven by the spring 23, the second sealing ring 29 located on the outer wall of the second pressure plate 15 will abut against the first sealing ring 25 on the outer wall of the support groove 24, thereby sealing the contact surface between the second pressure plate 15 and the support groove 24, so that the support groove 24 can adsorb the second pressure plate 15 through the internal negative pressure, thereby improving the overall stability of the push block 14.

[0032] like Figure 7 As shown, the outer wall of the push block 14 is provided with a wear-resistant sheet 30 , and the outer wall of the second pressure plate 15 is fixed with a guide block 33 , which is slidably connected to the inner wall of the guide frame 16 .

[0033] like Figure 3 As shown, a rubber block 9 and a friction pad 10 are fixed to the outer wall of the rotating plate 4, and arc grooves 34 are respectively opened on the upper and lower inner walls of the rectangular through hole 27; the arc grooves 34 can guide the rotating plate 4 rotating on the inner wall of the rectangular through hole 27, and at the same time, the rubber block 9 can increase the friction between the rotating plate 4 and the arc groove 34 when the rotating plate 4 is blocked on the inner wall of the rectangular through hole 27; at the same time, the staff can conveniently pull the door panel 3 out of the installation frame 1 as a whole through the rotating plate 4 through the friction pad 10 on the outer wall of the rotating plate 4.

[0034] When using this embodiment, the staff first inserts the installation frame 1 as a whole into the installation groove 7, and then fixes the fixing plate 8 to the inner wall of the installation groove 7 by bolts; then the door panel 3 is inserted into the inner wall of the installation frame 1 as a whole, so that a group of sliders 17 on one side of the door panel 3 are respectively inserted into the corresponding connection frame 5, and then the staff rotates the rotating plate 4 as a whole, so that the rotating plate 4 as a whole fits the inner wall of the rectangular through hole 27 to block and seal the rectangular through hole 27. At this time, the outer wall on one side of the rotating plate 4 no longer squeezes the push block 14, and the push block 14 will push on both sides. Driven by the dynamic reset mechanism, it moves toward the side of the door panel 3, thereby driving the first pressure plate 13 of the outer wall to squeeze the airbag 22. After being squeezed, the airbag 22 will fill the inner wall gas into the cylinder 19, thereby pushing the trapezoidal plug 20 on one side of the output shaft of the cylinder 19 to move forward until the trapezoidal plug 20 is inserted into the inner wall of the slot 21 as a whole. At this time, the door panel 3 as a whole can be fixed inside the installation frame 1 under the limitation of the trapezoidal plug 20 and the slot 21. At this time, there is no height difference between the installation frame 1 and the door panel 3 as a whole and the outer wall of the decorative wall 2, and there is no gap on the surface.

[0035] When the staff needs to open the door panel 3, they first push the rotating plate 4 to rotate ninety degrees, thereby pushing the push block 14 on one side away from the door panel 3 through the rotating rotating plate 4, thereby pulling the airbag 22 to expand through the first pressure plate 13. After the airbag 22 expands, it will absorb the gas inside the cylinder 19, thereby driving the output shaft of the cylinder 19 to be recovered, allowing the trapezoidal plug block 20 to leave the inner wall of the slot 21, and then the staff can pull the rotating plate 4 as a whole to pull the door panel 3 out of the installation frame 1, and can use the corresponding facilities installed in the installation slot 7, so that the user only needs to rotate the rotating plate 4 back and forth to complete the closing and opening of the door panel 3.

[0036] Embodiment 2: A method for constructing a concealed door structure, such as Figure 1-7 As shown, the following steps are included: S1: The staff first inserts the installation frame 1 as a whole into the installation groove 7, and then fixes the fixing plate 8 to the inner wall of the installation groove 7 by bolts; S2: Insert the door panel 3 as a whole into the inner wall of the installation frame 1, and insert a set of sliders 17 on one side of the door panel 3 into the corresponding connection frames 5 respectively; S3: Rotate the rotating plate 4 as a whole so that the rotating plate 4 as a whole fits against the inner wall of the rectangular through hole 27, shield and seal the rectangular through hole 27, and the installation of the hidden door structure is completed.

[0037] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A decorative concealed door structure, comprising a mounting frame (1) plugged into the inner wall of a decorative wall (2), characterized in that: A group of connecting frames (5) are fixed to the outer wall of one side of the installation frame (1), a slider (17) is slidably connected to the inner wall of the connecting frame (5), a door panel (3) is fixed to the outer wall of one side of the slider (17), the door panel (3) is plugged into the inner wall of the installation frame (1), a rectangular through hole (27) is opened on the outer wall of one side of the door panel (3), the inner wall of the rectangular through hole (27) is rotatably connected to a connecting rod (11) through a damping shaft, a rotating plate (4) is fixed to the outer wall of the connecting rod (11), a group of air bags (22) are fixed to the outer wall of the air bags (22), a first pressing plate (13) is fixed to the outer wall of the first pressing plate (13), a push block (14) is fixed to the outer wall of one side of the slider (17), a group of cylinders (19) are fixed to the output shaft of the cylinder (19) is fixed to a trapezoidal plug block (20), and slots (21) are respectively opened on the outer walls of both sides of the connecting frame (5).

2. A decorative hidden door structure according to claim 1, characterized in that: A clamping plate (31) is fixed to an outer wall of one side of the sliding block (17), and a second air valve (18) is provided on the outer wall of the clamping plate (31). The second air valve (18) is connected to an input end of the cylinder (19) via a pipeline.

3. The decorative hidden door structure according to claim 1, characterized in that: The first pressure plate (13) is provided with a first air valve (12) on its outer wall, the first air valve (12) is connected to the air bag (22) via a pipeline, the first air valve (12) and the second air valve (18) are connected via an air supply pipeline, and the outer walls on both sides of the push block (14) are provided with a push reset mechanism.

4. The decorative hidden door structure according to claim 1, characterized in that: The outer wall of one side of the decorative wall (2) is provided with a mounting groove (7) and a reserved groove (6); the outer wall of one side of the mounting frame (1) is fixed with a set of fixing plates (8); the outer wall of the fixing plates (8) is provided with fixing holes (35); the fixing plates (8) are fixed to the inner wall of the mounting groove (7) by means of bolts.

5. The decorative hidden door structure according to claim 3, characterized in that: The push-reset mechanism comprises a support groove (24), a spring (23) and a second pressure plate (15); the support groove (24) is arranged on an outer wall of one side of the door panel (3); the spring (23) is fixed to an inner wall of the support groove (24); the second pressure plate (15) is respectively fixed to outer walls of both sides of the door panel (3); and an outer wall of one side of the spring (23) is fixed to an outer wall of the second pressure plate (15).

6. A concealed door structure according to claim 5, characterized in that: A group of guide frames (16) are fixed to the outer wall of one side of the door panel (3), and a group of connecting blocks (26) are fixed to the outer wall of one side of the push block (14). The connecting blocks (26) and the outer wall of the push block (14) are rotatably connected to a first roller (28) and a second roller (32), and the first roller (28) and the second roller (32) are rollingly connected to the inner wall of the guide frame (16).

7. The concealed door structure according to claim 5, characterized in that: A second sealing ring (29) is fixed to an outer wall of one side of the second pressing plate (15), and a first sealing ring (25) is fixed to an outer wall of one side of the supporting groove (24).

8. The decorative hidden door structure according to claim 6, characterized in that: The outer wall of the push block (14) is provided with a wear-resistant sheet (30), and the outer wall of the second pressing plate (15) is fixed with a guide block (33), which is slidably connected to the inner wall of the guide frame (16).

9. The concealed door structure according to claim 1, characterized in that: A rubber block (9) and a friction pad (10) are fixed to the outer wall of the rotating plate (4), and arc-shaped grooves (34) are respectively formed on the inner walls of the upper and lower sides of the rectangular through hole (27).

10. A construction method for a facing hidden door structure, characterized in that: The steps include: S1: The staff first inserts the installation frame (1) as a whole into the installation groove (7), and then fixes the fixing plate (8) to the inner wall of the installation groove (7) by bolts; S2: inserting the door panel (3) as a whole into the inner wall of the installation frame (1), and inserting a set of sliding blocks (17) on one side of the door panel (3) into corresponding connection frames (5); S3: Rotate the rotating plate (4) as a whole so that the rotating plate (4) as a whole fits against the inner wall of the rectangular through hole (27), thereby shielding and sealing the rectangular through hole (27), and thus completing the installation of the hidden door structure.

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