Hidden door system

Abstract

This invention relates to the field of prefabricated building technology and provides a concealed door system, comprising: a door frame mounted on a wall, with a wall panel mounted on the wall; a door body; a first frame covering a first side of the door body near the door hinge, the first frame having a first inclined plate that slopes towards the central axis of the door body and transitions to the outer surface of the door body, the angle between the first inclined plate and the outer surface of the door body being an obtuse angle; and a first edge trim covering the edge of the wall panel near the first frame, the first edge trim having a second inclined plate corresponding to the position of the first inclined plate, the second inclined plate being parallel to the first inclined plate. The inclined second plate provides more rotation space for the first frame, allowing for a smaller gap between the first edge trim and the first frame, or even eliminating the need for a gap altogether, enabling the concealed door system to blend more seamlessly into the entire wall, improving the overall integrity and aesthetics of the concealed door system.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and more specifically, to a concealed door system. Background Technology

[0002] A fire hydrant is a fixed fire-fighting device whose main function is to control combustibles, isolate oxidizers, and eliminate ignition sources. It is widely used in densely populated places such as high-rise buildings, large shopping malls, factories, and hotels. Fire hydrants are usually placed in the walls of public spaces such as corridors or halls and are concealed by hidden doors.

[0003] In related technologies, the concealed door is made of rectangular panels and is installed on the wall via a hinge. A decorative wall panel is installed on the wall to be spliced ​​with the concealed door. Since the concealed door has a certain thickness and the edges are constructed at right angles, a large gap must be maintained between the concealed door and the decorative wall panel to ensure that the edge of the concealed door will not collide with the decorative wall panel or the wall when it is opened by rotating the hinge. However, this also reduces the overall integrity and aesthetics of the concealed door system.

[0004] Therefore, existing technologies still need improvement and development. Summary of the Invention

[0005] The purpose of this invention is to propose a concealed door system to solve the technical problem in the prior art that a large gap must be maintained between the concealed door and the decorative wall panel.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a concealed door system, comprising:

[0007] A door frame is installed on a wall, and a wall panel is provided on the wall;

[0008] The door body has its upper and lower ends connected to the door frame via door hinges and rotates relative to the door frame with the door hinges as the axis. When the door body is in the closed state, the outer surface of the door body is coplanar with the outer surface of the wall panel.

[0009] A first frame is provided on the first side of the door body near the door hinge. The first frame has a first inclined plate, which is inclined toward the central axis of the door body and transitions to the outer surface of the door body. The angle between the first inclined plate and the outer surface of the door body is an obtuse angle.

[0010] A first edge trimming piece is provided to cover the edge of the wall panel near the first frame. The first edge trimming piece has a second inclined plate corresponding to the position of the first inclined plate, and the second inclined plate is parallel to the first inclined plate.

[0011] Furthermore, the first frame includes a first inner plate, a first side plate, a first inclined plate, and a first outer plate connected in sequence and arranged in a C-shaped groove. The first inner plate is attached to the inner surface of the door body, the first outer plate is attached to the outer surface of the door body, the first side plate and the first inclined plate are attached to the first side, and the included angle between the first side plate and the first inclined plate is an obtuse angle.

[0012] Furthermore, the connection point of the door hinge at the upper and lower ends of the door body is the axis center point. On the plane passing through the axis center point and perpendicular to the axis of the door hinge, the vertical distance from the axis center point to the first outer plate is a, the distance from the axis center point to the intersection of the first inclined plate and the first outer plate is b, and the included angle between the first inclined plate and the first outer plate is α, where α > (π / 2 + arcsin(a / b)).

[0013] In some embodiments, the door body includes an inner frame and an inner panel and an outer panel disposed on the inner and outer sides of the inner frame, the first inner panel being attached to the inner panel, the first outer panel being attached to the outer panel, and the first side panel and the first inclined plate covering the gap between the inner panel and the outer panel.

[0014] Furthermore, the concealed door system also includes:

[0015] The second frame is provided on the second side of the door body away from the door hinge. The second frame has a third inclined plate, which is inclined in a direction away from the central axis of the door body and transitions to the outer surface of the door body. The angle between the third inclined plate and the outer surface of the door body is an acute angle.

[0016] The second edge trimming piece is provided to cover the edge of the wall panel near the second frame. The second edge trimming piece has a fourth inclined plate corresponding to the position of the third inclined plate, and the third inclined plate is parallel to the fourth inclined plate.

[0017] In some embodiments, the second frame includes a second inner plate, a second side plate, a third inclined plate, and a second outer plate connected in sequence and forming a C-shaped groove. The second inner plate is attached to the inner panel, the second outer plate is attached to the outer panel, the second side plate and the third inclined plate are attached to the second side and cover the gap between the inner panel and the outer panel, and the included angle between the second side plate and the third inclined plate is an obtuse angle.

[0018] Furthermore, both the first frame and the second frame have inner and outer insert plates connected in their C-shaped grooves. Inner slots for inserting the inner panel are formed between the first inner plate and the inner insert plate, and between the second inner plate and the inner insert plate. Outer slots for inserting the outer panel are formed between the first outer plate and the outer insert plate, and between the second outer plate and the outer insert plate.

[0019] In some embodiments, a plurality of connecting corner brackets are provided between the door frame and the wall, the connecting corner brackets including a first corner bracket edge with a first oblong hole and a second corner bracket edge with a second oblong hole, and the door frame is provided with fixing holes;

[0020] The first oval hole corresponds to the hole of the fixing hole and is fastened by the connecting bolt, so that the first corner bracket edge is connected and fixed on the door frame, and the second corner bracket edge is connected and fixed on the wall through the cooperation of the second oval hole and the connecting bolt.

[0021] Furthermore, the length direction of the first oblong hole is the same as the front-back direction of the door frame, and the length direction of the second oblong hole is the same as the vertical or horizontal direction of the door frame.

[0022] In some embodiments, the wall panel is located in front of the door frame and covers the edge of the door frame, and the corner of the first edge trim is chamfered.

[0023] The beneficial effects of the concealed door system provided by the present invention are at least as follows: the inclined second plate provides more rotation space for the first frame, and the first frame is less likely to collide with the second inclined plate during rotation. Therefore, the gap between the first edge trim and the first frame can be set smaller, or even no gap needs to be left, so that the concealed door system can be more realistically integrated into the entire wall, improving the integrity and aesthetics of the concealed door system.

[0024] The length of the first side panel is equal to the width of the edge of the door frame and they are parallel to each other. The length of the first inclined plate is equal to the length of the second inclined plate and they are parallel to each other. The first side panel and the first inclined plate are smoothly joined together. This ensures that the first frame is less likely to collide with the wall panel, while the actual opening of the door is larger, reducing space waste. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1This invention provides a schematic diagram of a partial structure of the door and wall near the door hinge in an existing concealed door system.

[0027] Figure 2 A top view of the concealed door system installed on the wall according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the door provided in an embodiment of the present invention;

[0029] Figure 4 Provided for embodiments of the present invention Figure 2 Enlarged view of region A in the middle;

[0030] Figure 5 This is a schematic diagram of the structure of the first frame and the first edge trimming member provided in an embodiment of the present invention;

[0031] Figure 6 Provided for embodiments of the present invention Figure 2 A further enlarged view of region A in the middle;

[0032] Figure 7 Provided for embodiments of the present invention Figure 2 Enlarged view of region B in the middle;

[0033] Figure 8 This is a schematic diagram of the structure of the second frame and the second edge-receiving member provided in an embodiment of the present invention;

[0034] Figure 9 This is a structural diagram of a door body installed on a door frame, provided as an embodiment of the present invention.

[0035] Figure 10 This is a structural diagram of the connecting corner bracket and the door frame provided in an embodiment of the present invention.

[0036] The following are the labeling elements in the figure:

[0037] 1. Door frame; 11. Fixing holes;

[0038] 2. Walls;

[0039] 3. Wall panel; 31. First edge trim; 32. Second beveled panel; 33. Second edge trim; 34. Fourth beveled panel;

[0040] 4. Door body; 41. Door hinge; 42. First side; 43. Second side; 44. Inner frame; 45. Inner panel; 46. Outer panel;

[0041] 5. First frame; 51. First inner panel; 52. First side panel; 53. First inclined plate; 54. First outer panel;

[0042] 6. Second frame; 61. Second inner panel; 62. Second side panel; 63. Third inclined panel; 64. Second outer panel;

[0043] 7. Inner insert plate; 71. Inner slot;

[0044] 8. External insertion plate; 81. External slot;

[0045] 9. Connecting corner bracket; 91. First oval hole; 92. First corner bracket edge; 93. Second oval hole; 94. Second corner bracket edge. Detailed Implementation

[0046] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0047] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0048] First, refer to Figure 1 , Figure 1 The diagram illustrates the positional relationship between the rectangular door 4 and the wall 2 in a concealed door system where a hinge 41 is installed on the door 4 in the prior art. It can be observed that during the opening of the door 4, the rotation trajectory of the edge of the door 4 determines that a sufficient gap needs to be maintained between the edge of the door 4 and the wall 2. Otherwise, the edge of the door 4 will collide with the wall 2, causing the door 4 to be unable to open normally. When a wall panel 3 is installed on the wall 2, there will also be a collision between the door 4 and the wall panel 3. The following embodiments will uniformly use the installation of a wall panel 3 on the wall 2 as an example for explanation.

[0049] The following description, in conjunction with the accompanying drawings, describes a concealed door system according to an embodiment of the present invention, with the aim of reducing the gap between the door 4 and the wall 2, so that the concealed door system achieves the effect of minimal or no gaps in the frame.

[0050] Please see Figure 2 and Figure 4 , Figure 2 and Figure 4 The diagram shows the structure of the concealed door system of this application installed on the wall. The concealed door system includes a door frame 1, a door body 4, a first side frame 5, and a first edge trim 31. The door frame 1 is set on the wall 2, and the wall 2 is provided with a wall panel 3. The upper and lower ends of the door body 4 are connected to the door frame 1 through door hinges 41 and rotate relative to the door frame 1 with the door hinges 41 as the axis. It can be understood that the door hinges 41 are set in the manner of a top and bottom door hinge 41. When the door body 4 is in the closed state, the outer surface of the door body 4 is coplanar with the outer surface of the wall panel 3, so that the door body 4 and the wall panel 3 form a flat wall surface.

[0051] Unlike existing technologies that construct the edges of the door 4 as right angles, this embodiment sets the edges of the door 4 and the wall panel 3 as parallel bevels. Specifically, see [link to relevant documentation]. Figures 3-5 The first frame 5 is provided on the first side 42 of the door body 4 near the door hinge 41. The first frame 5 has a first inclined plate 53. The first inclined plate 53 is inclined toward the central axis of the door body 4 and transitions to the outer surface of the door body 4. The angle between the first inclined plate 53 and the outer surface of the door body 4 is an obtuse angle. Thus, the edge of the door body 4 is covered and decorated by the first frame 5, and at least a portion of the edge of the door body 4 is constructed as an inclined surface that slopes toward the outer surface of the door body 4.

[0052] Further reading Figure 4 and Figure 5 The first edge trimming piece 31 is provided to cover the edge of the wall panel 3 near the first frame 5. The first edge trimming piece 31 has a second inclined plate 32 corresponding to the position of the first inclined plate 53. The second inclined plate 32 is parallel to the first inclined plate 53. Thus, the edge of the wall panel 3 is covered and decorated by the first edge trimming piece 31, and the edge of the wall panel 3 is constructed as an inclined surface parallel to the first inclined plate 53.

[0053] During the process of the door 4 rotating and opening around the door hinge 41, the rotation trajectory of the first frame 5 is shown in the figure. It can be seen that the first frame 5 rotates from front to back with the door hinge 41 as the center. In the direction of the door 4 from front to back, the distance between the second inclined plate 32 and the door hinge 41 becomes farther and farther, and the radius of the rotation range that can be provided becomes larger and larger. That is to say, the inclined second inclined plate 32 in this embodiment provides more rotation space for the first frame 5. The first frame 5 is less likely to collide with the second inclined plate 32 during rotation. Therefore, the gap between the first edge trim 31 and the first frame 5 can be set smaller, or even no gap needs to be left, so that the hidden door system can be more realistically integrated into the entire wall 2, improving the integrity and aesthetics of the hidden door system.

[0054] See Figure 2After the concealed door system is installed, the wall panel 3 is located in front of the door frame 1 and covers the edge of the door frame 1. The outer surface of the door body 4 protrudes from the door frame 1 and is flush with the outer surface of the wall panel 3. In this way, when the door body 4 is closed, only the door body 4 and the wall panel 3 are exposed, resulting in a cleaner and more aesthetically pleasing appearance. Based on this, there can be a large gap between the door frame 1 and the door body 4 to ensure that the door body 4 will not collide with the door frame 1 during opening and closing. Furthermore, due to the obstruction of the wall panel 3, the appearance of the concealed door system will not be affected. Therefore, it is only necessary to prevent the door body 4 from colliding with the wall panel 3 during opening and closing.

[0055] In some implementations, see [reference] Figure 4 and Figure 5 The first frame 5 includes a first inner plate 51, a first side plate 52, a first inclined plate 53 and a first outer plate 54 connected in sequence and arranged to form a C-shaped groove. The first inner plate 51 is attached to the inner surface of the door body 4, the first outer plate 54 is attached to the outer surface of the door body 4, the first side plate 52 and the first inclined plate 53 are attached to the first side edge 42, and the included angle between the first side plate 52 and the first inclined plate 53 is an obtuse angle. The C-shaped groove is a frame that approximates a truss and has an opening. The first side plate 52 is the top edge of the truss. The first inner plate 51 and the first outer plate 54 are parallel to each other so as to better fit the inner and outer surfaces of the door body 4.

[0056] Furthermore, the length of the first inclined plate 53 is greater than 0, and the length of the first side plate 52 is greater than or equal to 0. That is to say, the first frame 5 may not have the first side plate 52. The first inner plate 51 and the first outer plate 54 are directly connected to the two ends of the first inclined plate 53, which can reduce the probability of the door 4 colliding with the wall panel 3 during opening. Therefore, this application does not specifically limit the length of the first inclined plate 53 and the first side plate 52.

[0057] Furthermore, assuming the door frame 1 is the same size and the door body 4 is the same thickness, the shorter the length of the first side panel 52, the longer the length of the inclined first plate 53 will be. The door frame 1 will need to provide more space for the first inclined plate 53, and thus the exposed area of ​​the outer surface of the door body 4 will need to be reduced, resulting in a smaller actual usable area of ​​the concealed door system. In other words, the doorway space of the concealed door system will be smaller, resulting in wasted space.

[0058] Therefore, refer to Figure 4 and Figure 5 In a preferred embodiment, the length of the first side plate 52 is equal to the width of the edge of the door frame 1 and they are parallel to each other. The length of the first inclined plate 53 is equal to the length of the second inclined plate 32 and they are parallel to each other. The first side plate 52 and the first inclined plate 53 are smoothly connected. While ensuring that the first frame 5 is less likely to collide with the wall panel 3, the actual opening of the door 4 is larger, reducing space waste.

[0059] See Figure 4 and Figure 6 The connection point of the door hinge 41 at the upper and lower ends of the door body 4 is the axis point. After the door body 4 rotates and opens around the axis point, if point m at the junction of the first inclined plate 53 and the first outer plate 54 never collides with the second inclined plate 32, the gap between the first frame 5 and the first edge trim 31 can be set close to 0, achieving the effect of no frame gap.

[0060] To achieve the effect of a frameless gap, on a plane passing through the pivot point and perpendicular to the axis of the door hinge 41, the vertical distance from the pivot point to the first outer plate 54 is a, the distance from the pivot point to the intersection of the first inclined plate 53 and the first outer plate 54 is b, and the included angle between the first inclined plate 53 and the first outer plate 54 is α, where α > (π / 2 + arcsin(a / b)).

[0061] The rotation trajectory of point m is as follows: Figure 6 As shown in the circle, when the included angle α between the first inclined plate 53 and the first outer plate 54 is (π / 2 + arcsin(a / b)), at the instant the door 4 rotates and opens, the rotation direction of point m is tangent to the tilt direction of the initial position of the first inclined plate 53. Similarly, the rotation direction of point m is also tangent to the tilt direction of the second inclined plate 32. Furthermore, during the subsequent rotation of the door 4, the rotation trajectory of point m does not intersect with the straight line where the initial position of the first inclined plate 53 is located. Thus, the second inclined plate 32 can be fitted with the first inclined plate 53, eliminating the gap between the first inclined plate 53 and the second inclined plate 32, achieving the effect of a frameless gap.

[0062] Furthermore, when the included angle α between the first inclined plate 53 and the first outer plate 54 is greater than (π / 2 + arcsin(a / b)), at the instant the door 4 rotates and opens, the rotation direction of point m forms a certain angle with the tilt direction of the initial position of the first inclined plate 53. The rotation trajectory of point m and the second inclined plate 32 are located on both sides of the first inclined plate 53, that is, point m will not intersect with the second inclined plate 32 during the opening of the door 4, and there will be no collision. Thus, the second inclined plate 32 can be fitted with the first inclined plate 53 to eliminate the gap between the first inclined plate 53 and the second inclined plate 32, and the effect of frameless gap can also be achieved.

[0063] In some embodiments, the door 4 may be displaced or deformed during subsequent use, causing the rotation trajectory to change. Therefore, a certain gap can be set between the second inclined plate 32 and the first inclined plate 53 to prevent the door 4 from deforming and becoming unable to open. The gap between the first inclined plate 53 and the second inclined plate 32 is 0mm-2mm.

[0064] Of course, the gap between the first inclined plate 53 and the second inclined plate 32 can be equal to 0. In this case, during the opening process of the door 4, point m at the junction of the first inclined plate 53 and the first outer plate 54 first rotates along the second inclined plate 32 and then moves away from the second inclined plate 32.

[0065] In some implementations, see Figure 3 and Figure 4 The door body 4 includes an inner frame 44 and an inner panel 45 and an outer panel 46 disposed on the inner and outer sides of the inner frame 44. A first inner panel 51 is attached to the inner panel 45, a first outer panel 54 is attached to the outer panel 46, and a first side panel 52 and a first inclined plate 53 cover the gap between the inner panel 45 and the outer panel 46.

[0066] The outer panel 46 and the inner panel 45 are respectively connected to and cover the inner frame 44 on opposite sides. The outer panel 46 and the inner panel 45 constitute the decorative panel of the door 4. The aesthetically pleasing and neat door 4 is visible when the door 4 is opened and closed. At this time, the inner frame 44 is sandwiched between the outer panel 46 and the inner panel 45, with a certain gap between them. (See reference...) Figure 3 The first frame 5 is connected to the edge of the outer panel 46 and the inner panel 45. The first frame 5 covers the gap between the outer panel 46 and the inner panel 45, thus sealing the gap.

[0067] A finishing layer can be applied to both the outer panel 46 and the inner panel 45. The finishing layer is a decorative layer formed by spraying pigments, or it can be a coating layer of the same color as the wall panel 3, to ensure the aesthetic effect of the concealed door.

[0068] The inner frame 44 is set as a rectangular frame, and the outer panel 46 and the inner panel 45 are also rectangular plates and are connected to both sides of the inner frame 44. The edges of the outer panel 46 and the inner panel 45 extend to the outside of the edge of the inner frame 44 to facilitate the installation of the first frame 5.

[0069] Of course, the inner frame 44 can also be set as a frame of other closed shapes, such as triangle, trapezoid, circle, ellipse, etc., which can all serve as the internal support skeleton of the door 4. These do not deviate from the structural principle of the door 4. Therefore, the shape of the inner frame 44 is not specifically limited.

[0070] In some implementations, see Figure 7 and Figure 8The concealed door system also includes a second frame 6 and a second edge trimmer 33. The second frame 6 and the first frame 5 are respectively disposed on the left and right sides of the door body 4. The second edge trimmer 33 and the first edge trimmer 31 are respectively disposed on the edges of the wall panels 3 on the left and right sides of the door body 4. The second frame 6 covers the second side 43 of the door body 4 away from the door hinge 41. The second frame 6 has a third inclined plate 63. The third inclined plate 63 is inclined away from the central axis of the door body 4 and transitions to the outer surface of the door body 4. The angle between the third inclined plate 63 and the outer surface of the door body 4 is an acute angle. The second edge trimmer 33 covers the edge of the wall panel 3 near the second frame 6. The second edge trimmer 33 has a fourth inclined plate 34 corresponding to the position of the third inclined plate 63. The third inclined plate 63 and the fourth inclined plate 34 are parallel.

[0071] Similar to the slanted arrangement of the first border 5 and the first edge trim 31, as shown in the figure. Figure 7 and Figure 8 As shown, after the second frame 6 is tilted, the fourth inclined plate 34 of the second edge trim 33 can also provide more rotation space for the second frame 6. Therefore, a smaller gap can be set between the second frame 6 and the second edge trim 33, or even a gapless gap can be set.

[0072] In some embodiments, the second frame 6 includes a second inner plate 61, a second side plate 62, a third inclined plate 63, and a second outer plate 64 connected in sequence and arranged to form a C-shaped groove. The second inner plate 61 is attached to the inner panel 45, the second outer plate 64 is attached to the outer panel, the second side plate 62 and the third inclined plate 63 are attached to the second side edge 43 and cover the gap between the inner panel 45 and the outer panel 46, and the included angle between the second side plate 62 and the third inclined plate 63 is an obtuse angle.

[0073] Furthermore, the length of the third inclined plate 63 is greater than 0, and the length of the second side plate 62 is greater than or equal to 0. That is to say, the second frame 6 may not have the second side plate 62. The second inner plate 61 and the second outer plate 64 are directly connected to the two ends of the third inclined plate 63, which can reduce the probability of the door 4 colliding with the wall panel 3 during opening. Therefore, this application does not specifically limit the length of the third inclined plate 63 and the second side plate 62.

[0074] Further, see Figure 4 , Figure 5 , Figure 7 and Figure 8 The first frame 5 and the second frame 6 are connected to the C-shaped grooves with inner insert plates 7 and outer insert plates 8. The inner slots 71 for inserting the inner panel 45 are formed between the first inner plate 51 and the inner insert plate 7, and between the second inner plate 61 and the inner insert plate 7. The outer slots 81 for inserting the outer panel 46 are formed between the first outer plate 54 and the outer insert plate 8, and between the second outer plate 64 and the outer insert plate 8.

[0075] When installing the first frame 5 and the second frame 6, the first frame 5 and the second frame 6 are respectively inserted into the left and right sides of the door body 4. The inner slot 71 formed is inserted and cooperates with the inner panel 45, and the outer slot 81 formed is inserted and cooperates with the outer panel 46. The cut surfaces of the inner panel 45 and the outer panel 46 and the gap between them are covered, thereby improving the aesthetics of the door body 4.

[0076] Furthermore, after prolonged use, the inner panel 45 and the outer panel 46 are prone to deformation and warping towards the other side. Therefore, in this embodiment, the inner panel 45 and the outer panel 46 are respectively inserted into the inner slot 71 and the outer slot 81. The inner slot 71 and the outer slot 81 provide installation positions for the inner panel 45 and the outer panel 46 and have the effect of position limitation, thus preventing the inner panel 45 and the outer panel 46 from deforming and warping.

[0077] Furthermore, the first frame 5 and the second frame 6 can be connected and fixed to the inner panel 45 by screws. Screw holes are provided on both the first inner panel 51 and the second inner panel 61. After connection and fixation, the screws are located on the inside of the door body 4 and will not be exposed on the outside of the door body 4, thus not affecting the overall appearance of the door body 4.

[0078] Furthermore, the first frame 5 and the second frame 6 can be reinforced and connected to the door body 4 by using structural adhesive.

[0079] Further, see Figure 9 and Figure 10 Multiple connecting corner brackets 9 are provided between the door frame 1 and the wall 2. The connecting corner bracket 9 includes a first corner bracket edge 92 with a first oval hole 91 and a second corner bracket edge 94 with a second oval hole 93. The door frame 1 is provided with a fixing hole 11.

[0080] During installation, the first oblong hole 91 is aligned with the hole of the fixing hole 11 and tightened with connecting bolts so that the first corner bracket edge 92 is connected and fixed on the door frame 1. The second corner bracket edge 94 is connected and fixed on the wall 2 through the second oblong hole 93 and the connecting bolts, thereby fixing the door frame 1 on the wall 2.

[0081] The door frame 1 has multiple fixing holes 11 evenly arranged around its circumference, and the connecting brackets 9 are evenly distributed around the circumference of the door frame 1 so that the door frame 1 is stably and firmly connected to the wall 2.

[0082] Understandably, after the door frame 1 is fixed to the wall 2, the door frame 1 needs to be kept on the same horizontal plane as the wall 2. In this embodiment, the connecting bracket 9 has a first oblong hole 91 and a second oblong hole 93. During the installation process, when the door frame 1 and the wall 2 are not on the same horizontal plane, the level can be adjusted by adjusting the position of the connecting bolts on the first oblong hole 91 and the second oblong hole 93.

[0083] Specifically, when the door frame 1 and the wall 2 are not on the same horizontal plane, the connecting bolt on the first oblong hole 91 can be loosened. At this time, the connecting bolt and the fixing hole 11 remain relatively stationary, and the first oblong hole 91 can be finely adjusted relative to the connecting bolt. Moving the door frame 1 can adjust the levelness.

[0084] Alternatively, the connecting bolts on the second oblong hole 93 can be loosened to adjust the relative position of the second oblong hole 93 and the connecting bolts, and the levelness of the door frame 1 and the wall 2 can also be adjusted. Of course, the connecting bolts on the first oblong hole 91 and the second oblong hole 93 can be loosened at the same time and the door frame 1 can be moved to adjust the door frame 1 and the wall 2 to the same horizontal plane. After adjusting the position of the door frame 1, the connecting bolts can be tightened again to complete the adjustment.

[0085] Further, see Figure 9 and Figure 10 The connecting corner code 9 is set as an L-shaped corner code, that is, the first corner code edge 92 and the second corner code edge 94 are perpendicular to each other.

[0086] Further, see Figure 10 The length direction of the first oblong hole 91 is the same as the front-back direction of the door frame 1, and the length direction of the second oblong hole 93 is the same as the up-down or left-right direction of the door frame 1. When adjusting the level of the door frame 1 and the wall 2, the connecting bolt on the first oblong hole 91 is loosened, and the door frame 1 can be moved slightly in the front-back direction relative to the wall 2 so that the door frame 1 and the wall 2 are adjusted to the same horizontal plane.

[0087] Meanwhile, there is a gap between the door frame 1 and the wall 2. By loosening the connecting bolts on the second oblong hole 93, the vertical or horizontal distance between the door frame 1 and the wall 2 can be adjusted, thereby making the gap between the door frame 1 and the wall 2 uniform and the appearance more neat and beautiful.

[0088] Of course, the length direction of the first oblong hole 91 can also be set to be the same as the vertical or horizontal direction of the door frame 1, and the length direction of the second oblong hole 93 can be set to be the same as the front-back direction of the door frame 1. When adjusting the level of the door frame 1 and the wall 2, the connecting bolts on the second oblong hole 93 can be loosened, and the door frame 1 can be moved slightly in the front-back direction relative to the wall 2 so that the door frame 1 and the wall 2 are adjusted to the same horizontal plane. By loosening the connecting bolts on the first oblong hole 91, the vertical or horizontal distance of the door frame 1 relative to the wall 2 can be adjusted, so that there is a uniform gap between the door frame 1 and the wall 2 around its perimeter.

[0089] It is understood that the length direction of the first oblong hole 91 and the second oblong hole 93 in this embodiment is the direction after they are installed on the door frame 1 and the wall 2, so as to ensure that when the direction is adjusted, the door frame 1 can move relative to the wall 2 in the front-back, left-right and up-down directions.

[0090] In some embodiments, the corner of the first edge trimmer 31 is chamfered. When the door 4 is rotated to the maximum opening angle, the outer surface of the door 4 will contact the first edge trimmer 31. The chamfer on the first edge trimmer 31 can reduce the possibility of bumps and damage, and at the same time prevent sharp corners from scratching, improving aesthetics and enhancing safety.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concealed door system, characterized in that, include: A door frame is installed on a wall, and a wall panel is provided on the wall; The door body has its upper and lower ends connected to the door frame via door hinges and rotates relative to the door frame with the door hinges as the axis. When the door body is in the closed state, the outer surface of the door body is coplanar with the outer surface of the wall panel. A first frame is provided on the first side of the door body near the door hinge. The first frame includes a first inner plate, a first side plate, a first inclined plate, and a first outer plate connected in sequence and forming a C-shaped groove. The first inner plate is attached to the inner surface of the door body, the first outer plate is attached to the outer surface of the door body, the first side plate and the first inclined plate are attached to the first side. The length of the first side plate is equal to the width of the edge of the door frame and is parallel to each other. The first inclined plate is inclined towards the central axis of the door body and transitions to the outer surface of the door body. The connection point of the door hinge at the upper and lower ends of the door body is the axis point. On the plane passing through the axis point and perpendicular to the axis of the door hinge, the vertical distance from the axis point to the first outer plate is a, the distance from the axis point to the intersection of the first inclined plate and the first outer plate is b, and the included angle between the first inclined plate and the first outer plate is α, where α > (π / 2 + arcsin(a / b)). A first edge trimming piece is provided to cover the edge of the wall panel near the first frame. The first edge trimming piece has a second inclined plate corresponding to the position of the first inclined plate. The second inclined plate is equal in length to the first inclined plate and parallel to each other.

2. The concealed door system according to claim 1, characterized in that, The door body includes an inner frame and an inner panel and an outer panel disposed on the inner and outer sides of the inner frame. The first inner panel is attached to the inner panel, the first outer panel is attached to the outer panel, and the first side panel and the first inclined plate cover the gap between the inner panel and the outer panel.

3. The concealed door system according to claim 2, characterized in that, Also includes: The second frame is provided on the second side of the door body away from the door hinge. The second frame has a third inclined plate, which is inclined in a direction away from the central axis of the door body and transitions to the outer surface of the door body. The angle between the third inclined plate and the outer surface of the door body is an acute angle. The second edge trim is provided to cover the edge of the wall panel near the second frame. The second edge trim has a fourth inclined plate corresponding to the position of the third inclined plate, and the third inclined plate is parallel to the fourth inclined plate.

4. The concealed door system according to claim 3, characterized in that, The second frame includes a second inner plate, a second side plate, a third inclined plate, and a second outer plate connected in sequence and forming a C-shaped groove. The second inner plate is attached to the inner panel, the second outer plate is attached to the outer panel, the second side plate and the third inclined plate are attached to the second side and cover the gap between the inner panel and the outer panel, and the included angle between the second side plate and the third inclined plate is an obtuse angle.

5. The concealed door system according to claim 4, characterized in that, Both the first and second frame frames have inner and outer insert plates connected in their C-shaped grooves. Inner slots for inserting the inner panel are formed between the first inner plate and the inner insert plate, and between the second inner plate and the inner insert plate. Outer slots for inserting the outer panel are formed between the first outer plate and the outer insert plate, and between the second outer plate and the outer insert plate.

6. The concealed door system according to claim 1, characterized in that, Multiple connecting corner brackets are provided between the door frame and the wall. The connecting corner brackets include a first corner bracket edge with a first oblong hole and a second corner bracket edge with a second oblong hole. The door frame is provided with fixing holes. The first oval hole corresponds to the hole of the fixing hole and is fastened by the connecting bolt, so that the first corner bracket edge is connected and fixed on the door frame, and the second corner bracket edge is connected and fixed on the wall through the cooperation of the second oval hole and the connecting bolt.

7. The concealed door system according to claim 6, characterized in that, The length direction of the first oblong hole is the same as the front-back direction of the door frame, and the length direction of the second oblong hole is the same as the vertical or horizontal direction of the door frame.

8. The concealed door system according to claim 1, characterized in that, The wall panel is located in front of the door frame and covers the edge of the door frame, and the corner of the first edge trim is chamfered.

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