Invisible door

Abstract

The present invention provides an invisible door, comprising a door frame for being arranged on a base surface and having an outer end surface that does not protrude from the base surface, and a door leaf hinged to the door frame, wherein the door frame comprises a limiting strip arranged near the edge of the door leaf, and the edge of the door leaf is provided with a limiting groove adapted to the limiting strip, the limiting strip is used to stop the door leaf, and through cooperation with the limiting groove, the outer end surface of the door leaf can be flush with the base surface when the door leaf is closed. In the invisible door provided by the present invention, the door leaf is provided with a limiting groove adapted to the limiting strip on the door frame, and when the door leaf is closed, the limiting of the door leaf is achieved through the cooperation of the limiting groove and the limiting strip, and the outer end surface of the door leaf can be flush with the installation base surface of the invisible door, so as to achieve the effect of making the door leaf invisible.

Description

Technical Field

[0001] The invention relates to the technical field of home building materials, and in particular to an invisible door. Background Art

[0002] With the progress of society and the continuous improvement of living standards, in order to improve the integrity and aesthetics of home decoration, people's requirements for doors and windows in home products are gradually increasing. Invisible doors are increasingly used in the home field because they can make the space more integrated and visually neater.

[0003] In order to achieve position limiting with the door frame, the existing door leaf is usually not flush with the installation base surface, and the invisible effect cannot be achieved. There are also some invisible doors on the market, but they are usually complex in structure, or are installed without a door frame and limited by hinges, which makes installation difficult, low in strength and high in cost. Summary of the invention

[0004] The object of the present invention is to provide a simple and durable invisible door.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] An invisible door comprises a door frame which is arranged on a base surface and whose outer end surface does not protrude from the base surface, and a door leaf hinged to the door frame, wherein the door frame comprises a limit strip arranged near the edge of the door leaf, and the edge of the door leaf is provided with a limit groove which is adapted to the limit strip, the limit strip is used to stop the door leaf, and through cooperation with the limit groove, the outer end surface of the door leaf can be flush with the base surface when the door leaf is closed.

[0007] Furthermore, the invisible door also includes an upper hinge and a lower hinge, and the upper hinge and the lower hinge are fixed to the upper and lower ends of the door frame on the same side of the door frame, and are fixed to the door frame inside the door frame. The upper hinge is provided with a first connecting axis, and the lower hinge is provided with a second connecting axis, and the upper and lower ends of the door leaf are correspondingly sleeved with the first connecting axis and the second connecting axis.

[0008] Furthermore, the upper hinge and the lower hinge are both provided with fixing holes, and the upper hinge and the lower hinge are connected to the end of the door frame facing away from the door leaf through the fixing holes by means of screws.

[0009] Preferably, the upper hinge includes an L-shaped corner code, which includes an upper connecting surface and an upper mounting surface that are perpendicular to each other and fixed at the inner corner of the door frame, and the first connecting axis is arranged on the upper mounting surface and extends vertically downward to pass through the door frame.

[0010] Furthermore, the upper mounting surface is provided with a mounting hole, the upper hinge further comprises a bearing arranged in the mounting hole, and the first connecting shaft is connected to the upper mounting surface via the bearing.

[0011] Preferably, the upper mounting surface is provided with two mounting holes for the first connecting shaft to be installed to adapt to different opening and closing directions of the door leaf.

[0012] Furthermore, the lower hinge includes a lower connecting surface and a lower mounting surface which are perpendicular to each other, the lower connecting surface is fixed to the inside of the door frame, the lower mounting surface extends out of the door frame and is arranged at the bottom of the door leaf, and the second connecting axis is arranged on the lower mounting surface.

[0013] Preferably, the lower hinge further comprises a connecting column and a needle bearing, the connecting column is fixed on the lower mounting surface, and the needle bearing and the second connecting shaft are sequentially sleeved on the connecting column.

[0014] Preferably, the lower mounting surface is provided with a curved surface structure so that the second connecting axis is coaxially arranged with the first connecting axis.

[0015] Preferably, the door leaf comprises a keel and panels arranged on both sides of the keel, and the keel is formed by splicing profiles through angle codes.

[0016] Furthermore, the profile includes at least two vertical profiles and a transverse profile for connecting the vertical profiles, and the angle bracket includes a U-shaped angle bracket fixed in the transverse profile and connected to the vertical profile.

[0017] Preferably, there is a cavity between the panel and the keel, and the door leaf further includes an aluminum honeycomb filled in the cavity.

[0018] Preferably, a groove communicating with the base surface is formed at one end of the outer end surface of the door frame close to the base surface.

[0019] Compared with the prior art, the solution of the present invention has the following advantages:

[0020] 1. In the invisible door provided by the present invention, a limit groove is provided on the door leaf to match the limit strip on the door frame. When the door leaf is closed, the limit groove cooperates with the limit strip to limit the door leaf, and the outer end surface of the door leaf can be flush with the installation base surface of the invisible door, thereby achieving the effect of making the door leaf invisible.

[0021] 2. The upper hinge in the invisible door provided by the present invention includes an L-shaped corner code, and the L-shaped corner code is arranged at the corner inside the door frame, and only the first connecting axis for connecting the door leaf is exposed, so that the door frame can be reinforced while the hinge is hidden, the accessories of the door frame can be reduced, and the cost is optimized.

[0022] 3. The lower hinge in the invisible door provided by the present invention includes a lower connecting surface and a lower mounting surface which are perpendicular to each other. The lower connecting surface is fixed to the inside of the door frame to further hide the hinge. Only the lower mounting surface for supporting the door leaf is exposed, which makes the appearance more neat and beautiful and ensures the supporting strength.

[0023] 4. The door leaf in the invisible door provided by the present invention includes a keel formed by splicing profiles. Compared with the conventional wooden keel structure, it is not easily affected by environmental factors, such as deformation and warping of the door leaf due to room temperature changes, and can reduce the use of wood, which is more environmentally friendly and energy-saving. In addition, the processing procedures of the keel can be reduced, and the installation and adjustment are simpler and more convenient.

[0024] 5. The door leaf in the invisible door provided by the present invention is filled with aluminum honeycomb, which makes the door leaf have a higher flatness and can reduce the weight of the door leaf, so that the door leaf has the advantages of sound insulation, heat insulation, environmental protection, not easy to break, strong rigidity and no deformation.

[0025] 6. The outer end surface of the door frame of the invisible door provided by the present invention is provided with a groove connected to the base surface at one end close to the base surface. When in actual use, wooden boards, tiles or wallpapers similar to the base surface can be set on the groove to cover the door frame, thereby hiding the door frame. The door frame will not bulge due to the setting of other items for covering, thereby ensuring the flatness of the home decoration.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0028] Figure 1 A three-dimensional diagram of an invisible door provided by an embodiment of the present invention;

[0029] Figure 2 for Figure 1 Bottom view of the invisible door shown;

[0030] Figure 3 for Figure 1 a perspective view of the door frame shown;

[0031] Figure 4 A three-dimensional diagram of an upper hinge provided by an embodiment of the present invention;

[0032] Figure 5 A three-dimensional diagram of a lower hinge provided in an embodiment of the present invention;

[0033] Figure 6 A schematic diagram of the installation of the upper and lower hinges provided in an embodiment of the present invention;

[0034] Figure 7 A three-dimensional diagram of a keel provided in an embodiment of the present invention;

[0035] Figure 8 A cross-sectional view of a door leaf provided in accordance with an embodiment of the present invention. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0037] It will be understood by those skilled in the art that, unless specifically stated, the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, parts / components and / or assemblies, but does not exclude the presence or addition of one or more other features, integers, steps, operations, parts / components, assemblies and / or their groups. It should be understood that when we say a part / component is "connected" to another part / component, it can be directly connected to the other part / component, or there can be intermediate parts / components. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0038] Figures 1 to 8 The invisible door provided by the embodiment of the present invention is shown together, which has a simple structure and high strength. The door leaf of the invisible door is flush with the installation base surface to achieve an invisible effect, making the home decoration space more integrated and visually neater.

[0039] like Figure 1 As shown, the invisible door 1 comprises a door frame 11 and a door leaf 12 hinged to the door frame 11, wherein the door frame 11 is used to be arranged on a base surface, and the outer end surface of the door frame 11 does not protrude from the base surface. The base surface is the end surface of a structure such as a wall, a cabinet, a partition, etc., where a door leaf needs to be installed, or a decorative surface of a wooden board, a tile, a wallpaper, etc. arranged on the end surface.

[0040] Specifically, Figure 2As shown, the door frame 11 includes a limiting strip 111 disposed near the edge of the door leaf 12, and a limiting groove 121 adapted to the limiting strip 111 is provided on the edge of the door leaf 12. The door leaf 12 can be positioned when closed by the blocking of the limiting strip 111, which is stronger and more durable than positioning by hinges, and can reduce the volume of the hinges, thereby reducing costs and making it easier to hide the hinges. In addition, since the limiting groove 121 that can accommodate the limiting strip 111 is provided on the door leaf 12, the outer end surface of the door leaf 12 can be completely flush with the base surface after the door leaf 12 is fully closed, thereby achieving the invisible effect of the door leaf 12, thereby enhancing the overall sense of space.

[0041] Further, in Figure 2 As shown in FIG. 1 , a groove 112 connected to the base surface is provided at one end of the outer end surface of the door frame 11 close to the base surface. In actual use, a wooden board, a tile or a wallpaper, etc., which is the same as the base surface, can be set on the groove 112 to cover the door frame 11, thereby hiding the door frame 11, and the door frame 11 will not be raised due to setting other objects to cover it, thereby ensuring the flatness of the home decoration.

[0042] Please combine Figures 3 to 6 The invisible door 1 also includes an upper hinge 13 and a lower hinge 14, and the upper hinge 13 and the lower hinge 14 are fixed to the upper and lower ends of the door frame 11 on the same side of the door frame 11, and the upper hinge 13 and the lower hinge 14 are fixed to the door frame 11 inside the door frame 11, that is, the fixing structure of the upper and lower hinges and the door frame 11 are all arranged inside the door frame 11, hiding most of the structure of the upper and lower hinges, and only the part used to connect the door leaf 12 is exposed, so that the appearance of the invisible door 1 is more neat and beautiful.

[0043] Specifically, Figure 4 As shown, the upper hinge 13 includes an L-shaped corner code, and the L-shaped corner code includes an upper connecting surface 131 and an upper mounting surface 132 which are perpendicular to each other and fixed at the inner corner of the door frame 11, and the upper mounting surface 132 is provided with a mounting hole 1321. The upper hinge 13 also includes a bearing 133 arranged in the mounting hole 1321, and a first connecting shaft 134 which is arranged in the bearing 133 and extends vertically downward and passes through the door frame 12, that is, the first connecting shaft 134 can rotate relative to the upper mounting surface 132 through the bearing 133, and the first connecting shaft 134 is used to connect the door leaf 12. Since the L-shaped corner code is arranged at the inner corner of the door frame 11, only the first connecting shaft 134 used to connect the door leaf 12 is exposed, so that the upper hinge 13 can be hidden and the door frame 11 can be reinforced through the L-shaped corner code, thereby reducing the accessories of the door frame 11 and optimizing the cost.

[0044] The bearing 133 is a miniature metal bearing, which can reduce the wear of the upper hinge 13 caused by foreign objects such as dust and debris, and make the rotation of the door leaf 12 easier and smoother.

[0045] Preferably, at least one pin connection hole 1341 is formed on the first connecting shaft 134 , and after the first connecting shaft 134 is inserted into the door leaf 12 , it can be circumferentially fixed to the door leaf 12 by means of pins through the pin connection hole 1341 .

[0046] Preferably, two mounting holes 1321 are provided on the upper mounting surface 132 for the first connecting shaft 134 to adapt to different opening and closing directions of the door leaf 12, so that the upper hinge 13 can adapt to more installation conditions, and there is no need to replace different hinges when the door leaf is opened and closed differently.

[0047] like Figure 5 As shown, the lower hinge 14 includes a lower connecting surface 141 and a lower mounting surface 142 which are perpendicular to each other, the lower connecting surface 141 is fixed to the inside of the door frame 11, the lower mounting surface 142 extends out of the door frame 11 and is arranged at the bottom of the door leaf 12, and the lower hinge 14 also includes a second connecting shaft 143 arranged on the lower mounting surface 142.

[0048] Please combine Figure 5 and Figure 6 The lower hinge 14 further includes a needle bearing 144 and a connecting column 145. The connecting column 145 is fixed on the lower mounting surface 142. The needle bearing 144 and the second connecting shaft 143 are sequentially sleeved on the connecting column 143, that is, the second connecting shaft 143 can rotate relative to the connecting column 145 with the help of the needle bearing 144. Further, the bottom of the second connecting shaft 143 is provided with a flange 1431 that abuts against the needle bearing 144. When the door leaf 12 is connected, the flange 1431 increases the force bearing area of ​​the second connecting shaft 143 to achieve a better load-bearing function. Since the needle bearing 144 is arranged below the flange 1431, the wear of the lower hinge 14 caused by the rotation of the door leaf 12 is reduced. Compared with ordinary bearings, the needle bearing 144 has a high load capacity and strength in a smaller volume and can bear the weight of the door leaf 12.

[0049] See also Figure 6 Combined with Figure 4 and Figure 5, the upper hinge 13 and the lower hinge 14 are both provided with fixing holes 15, and the upper hinge 13 and the lower hinge 14 are both connected to the end of the door frame 11 facing away from the door leaf 12 through the fixing holes 15 by means of screws 16, so that the screws 16 are not exposed after the invisible door 1 is fully installed, and the hinges are further hidden. Specifically, the upper connecting surface 131 and the upper installation surface 132 of the upper hinge 13 both have the fixing holes 15 to connect and fix the two ends at the corners of the door frame 11, and the strength of the door frame is strengthened while fixing the upper hinge 13. The fixing holes 15 are only provided on the lower connecting surface 141 of the lower hinge 14. Since the lower hinge 14 needs to support most of the weight of the door leaf 12, the lower connecting surface 141 can be appropriately extended, and more than three fixing holes 15 are provided to ensure strength.

[0050] Preferably, if Figure 5 As shown, the lower mounting surface 142 is provided with a curved surface structure 1421 so that the second connecting axis 143 is coaxially arranged with the first connecting axis 134. There is no need to offset the center setting of the lower connecting surface 141 in order to correspond to the second connecting axis 143, thereby further improving the connection strength of the lower hinge 14. By setting the curved surface structure 1421, the area of ​​the lower mounting surface 142 can be reduced, thereby maximizing the hiding of the lower hinge 14.

[0051] like Figure 6 As shown, the screw 16 can be directly inserted and fixed from the end of the door frame 11 facing away from the door leaf 12, or it can be inserted and fixed from the end facing the door leaf 12 and then a baffle 113 is set to block it. No matter which fixing method is adopted, the screw 16 is connected to the end of the door frame 11 facing away from the door leaf 12 to ensure that the exposed end face of the door frame 11 is neat and beautiful.

[0052] In addition, if Figure 7 and Figure 8 As shown, the door leaf 12 provided in the embodiment of the present invention includes a keel 121 and panels disposed on both sides of the keel 121. The keel 121 is formed by splicing profiles through angle brackets. Specifically, the profile includes two vertical profiles 1211 and a horizontal profile 1212 for connecting the vertical profiles 1211.

[0053] Furthermore, if Figure 8 As shown, the corner code is a U-shaped corner code 122 , and each connection port between the transverse profile 1212 and the vertical profile 1211 is provided with the U-shaped corner code 122 . The U-shaped corner code 122 is fixed in the transverse profile 1212 and connected to the vertical profile 1211 .

[0054] In other embodiments, the splicing method of the keel 121 is not specifically limited. For example, more than three vertical profiles 1211 may be provided, and only two upper and lower horizontal profiles 1212 may be provided. The profiles may even be tilted to form a stable triangular structure. The specific assembly structure of the keel 121 may be set according to the type, size, purpose, etc. of the door leaf.

[0055] In this embodiment, the specific assembly method of the keel 121 is: first, the U-shaped corner bracket 122 is fixed to the vertical profile 1211 by using the screw 16, and then the port of the horizontal profile 1212 is sleeved on the U-shaped corner bracket 122, and the U-shaped corner bracket 122 is fixed in the horizontal profile 1212 by the screw 16. It should be understood that before installation, through holes or threaded holes adapted to the screws 16 need to be correspondingly provided on the vertical profile 1211, the horizontal profile 1212 and the U-shaped corner bracket 122.

[0056] Preferably, the profile is made of aluminum alloy material. The keel 121 formed by splicing the profile reduces the weight of the door leaf 12 while ensuring that the door leaf 12 has sufficient strength. Compared with the wooden keel structure of a conventional door leaf, it is not easily affected by environmental factors, such as deformation and warping of the door leaf due to room temperature changes, and can reduce the use of wood, which is more environmentally friendly and energy-saving. In addition, the processing procedures of the keel 121 can be reduced by splicing the profiles. For example, the shaft holes for the first connecting shaft 134 and the second connecting shaft 143 can be directly formed in one piece during the processing of the profiles, making the installation and adjustment simpler and more convenient.

[0057] See also Figure 8 There is a cavity between the panel and the keel 121, and the door leaf 12 also includes an aluminum honeycomb 123 filled in the cavity. By filling the aluminum honeycomb 123, the door leaf 12 has a higher flatness and can reduce the weight of the door leaf 12, so that the door leaf 12 has the advantages of sound insulation, heat insulation, environmental protection, not easy to break, strong rigidity and no deformation.

[0058] The above descriptions are only some embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An invisible door, comprising a door frame for being arranged on a base surface and having an outer end surface that does not protrude from the base surface, and a door leaf hinged to the door frame, characterized in that: The door frame includes a limit strip arranged near the edge of the door leaf, and the edge of the door leaf is provided with a limit groove adapted to the limit strip, the limit strip is used to stop the door leaf, and through cooperation with the limit groove, the outer end surface of the door leaf can be flush with the base surface when the door leaf is closed; The door frame is provided with a first connecting shaft, and the upper hinge comprises an L-shaped corner code, and the L-shaped corner code comprises an upper connecting surface and an upper mounting surface which are perpendicular to each other and fixed at the inner corner of the door frame, and the first connecting shaft is arranged on the upper mounting surface and extends vertically downward to pass through the door frame, and a mounting hole is provided on the upper mounting surface, and the upper hinge also comprises a bearing arranged in the mounting hole, and the first connecting shaft rotates relative to the upper mounting surface through the bearing; The hinge is provided with a second connecting shaft, and the first connecting shaft and the second connecting shaft are correspondingly sleeved on the upper and lower ends of the door leaf, the lower hinge includes a lower connecting surface and a lower mounting surface perpendicular to each other, the lower connecting surface is fixed to the inside of the door frame, the lower mounting surface extends out of the door frame and is arranged at the bottom of the door leaf, the second connecting shaft is arranged on the lower mounting surface, the lower hinge also includes a connecting column and a needle bearing, the connecting column is fixed to the lower mounting surface, the needle bearing and the second connecting shaft are sequentially sleeved on the connecting column, and the lower mounting surface is provided with an arc surface structure so that the second connecting shaft is coaxially arranged with the first connecting shaft.

2. The invisible door according to claim 1, characterized in that: The upper hinge and the lower hinge are both provided with fixing holes, and the upper hinge and the lower hinge are both connected to the end of the door frame facing away from the door leaf through the fixing holes by means of screws.

3. The invisible door according to claim 1, characterized in that: The upper mounting surface is provided with a mounting hole, and the upper hinge further comprises a bearing arranged in the mounting hole, and the first connecting shaft is connected to the upper mounting surface via the bearing.

4. The invisible door according to claim 3, characterized in that: The upper mounting surface is provided with two mounting holes for the first connecting shaft to be installed in accordance with different opening and closing directions of the door leaf.

5. The invisible door according to claim 1, characterized in that: The door leaf comprises a keel and panels arranged on both sides of the keel, and the keel is formed by splicing profiles through angle codes.

6. The invisible door according to claim 5, characterized in that: The profile includes at least two vertical profiles and a transverse profile for connecting the vertical profiles, and the angle bracket includes a U-shaped angle bracket fixed in the transverse profile and connected to the vertical profile.

7. The invisible door according to claim 6, characterized in that: A cavity is provided between the panel and the keel, and the door leaf further comprises an aluminum honeycomb filled in the cavity.

8. The invisible door according to claim 1, characterized in that: A groove communicating with the base surface is formed at one end of the outer end surface of the door frame close to the base surface.

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