CN116971692A - Invisible door frame, main frame pre-buried invisible door system and installation method thereof - Google Patents
Invisible door frame, main frame pre-buried invisible door system and installation method thereof Download PDFInfo
- Publication number
- CN116971692A CN116971692A CN202310266272.5A CN202310266272A CN116971692A CN 116971692 A CN116971692 A CN 116971692A CN 202310266272 A CN202310266272 A CN 202310266272A CN 116971692 A CN116971692 A CN 116971692A
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- Prior art keywords
- edge
- main frame
- installation
- cover
- flange
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- 238000009434 installation Methods 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005034 decoration Methods 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 8
- 239000004568 cement Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/52—Frames specially adapted for doors
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/34—Coverings, e.g. protecting against weather, for decorative purposes
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/56—Fastening frames to the border of openings or to similar contiguous frames
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/56—Fastening frames to the border of openings or to similar contiguous frames
- E06B1/60—Fastening frames to the border of openings or to similar contiguous frames by mechanical means, e.g. anchoring means
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Door And Window Frames Mounted To Openings (AREA)
Abstract
The invention provides a hidden door system with a hidden door frame and a pre-buried main frame and an installation method thereof, wherein the hidden main frame comprises a hidden main frame and a main frame cover side, the hidden main frame adopts a main frame section, the main frame cover side adopts a cover side section, the main frame section comprises a first installation side, a second installation side and a third installation side which are connected with the two ends of the first installation side, the second installation side is opposite to the third installation side, one end far away from the first installation side extends towards the third installation side, the two ends of the cavity side extend towards the first installation side to form a first flange and a second flange, the cover side section comprises a first cover side and a second cover side which are connected, the first cover side is clamped on the first flange, the end of the second cover side far away from the first cover side extends to form a connecting strip which is in the same direction as the first cover side, and the connecting strip is clamped on the second flange.
Description
Technical Field
The invention relates to the field of household building materials and constructional engineering, in particular to a hidden door system with a hidden door frame and a pre-buried main frame and an installation method thereof.
Background
Along with the continuous improvement of living standard, the requirements of the integrity and the aesthetic property of the house decoration are higher and higher, the requirements of people on the integrity and the concealment of the indoor door are higher and higher, the hidden frame door has better visual concealment, the integral conciseness of the house can be better integrated, and the application of the house decoration market is wider and wider.
Currently, hidden frame doors in the market generally have the following structures: 1. directly installing the main door frame into the door opening, and then hiding the main door frame by cement, putty or other decorative materials, so that a plurality of problems easily occur in the construction process; 2. the auxiliary frames are pre-buried in the wall hole, decoration construction is carried out, and the main door frame is installed after construction, so that the number of auxiliary door frames is increased, the working procedure is increased, the error opportunity is increased, and the cost is increased.
The two door frame mounting modes have a plurality of inconveniences.
Disclosure of Invention
The invention aims to provide a hidden door frame, a hidden door system with a pre-buried main frame and an installation method thereof, after finishing decoration construction, a main frame cover edge and a door leaf are installed, the main frame of the door is not required to be strictly protected in the decoration process, the installation is time-saving and efficient, the problems in the background technology are solved,
in order to achieve the above purpose, the present invention provides the following technical solutions: the embedded invisible door frame comprises a hidden main frame and a main frame cover edge;
the hidden main frames comprise a left main frame, a right main frame and a top main frame, and the three main frames adopt the same main frame section bar;
the main frame cover edges comprise a left main frame cover edge, a right main frame cover edge and a top main frame cover edge, and all three main frame cover edges adopt the same cover edge section bar;
the main frame section bar comprises a first installation edge, a second installation edge and a third installation edge which are connected with two ends of the first installation edge, wherein the second installation edge is opposite to the third installation edge;
the first installation edge is one side close to the wall surface;
the second mounting edge extends towards one end far away from the main frame section bar and is provided with a decorative plate limiting strip, when the decorative plate is used, the decorative plate limiting strip is used for positioning the decorative plate, the mounting is more convenient, and when the side surface of a wall hole is closed with muddy water, the decorative plate limiting strip plays a role in construction limiting;
one end far away from the first installation edge extends towards the third installation edge to form a cavity edge, and two ends of the cavity edge extend towards the first installation edge to form a first flange and a second flange;
the end part of the third installation edge extends towards the second flange to form a third flange, the third flange is connected with the second flange, the end part of the third installation edge is also provided with a putty limiting strip, the putty limiting strip limits the positions and the heights of decorative materials such as putty through bending the raised edge, and the putty or cement can be connected with the main frame better;
the cover edge section bar comprises a first cover edge and a second cover edge which are connected;
the first cover edge is clamped on the first baffle edge, the end part of the second cover edge, which is far away from the first cover edge, is extended to form a connecting strip which is in the same direction as the first cover edge, the connecting strip is clamped on the second baffle edge, the end part of the second cover edge, which is far away from the first cover edge, is provided with a wrapping edge which is clung to one side edge of the third baffle edge and the putty limiting strip, and the wrapping edge is also provided with a groove for installing a door leaf anti-collision strip;
the cavity side, the first flange, the second flange, part of the first cover side and the second cover side form a hinge installation cavity for installing a hinge.
Further, one side of the first installation edge, which is close to the wall surface, is fixedly connected with one outdoor end of the installation fixing code through a screw, the installation fixing code is tightly attached to the wall surface, one outdoor end of the installation fixing code is fixed to the wall surface through a screw, and the installation fixing code can prevent the main frame section bar from being directly driven into the wall surface to crack.
Further, a side edge of the first installation edge, which is attached to the installation fixing code, is provided with wavy lines, so that the installation fixing code is connected with the main frame section bar more stably.
Further, the outer side of the third mounting edge is provided with wavy lines, so that putty or cement can be conveniently and well attached to the first mounting edge.
Furthermore, the third installation edge is also provided with an angle code installation groove for installing the leveling angle code, and the three-side main frame is formed into a whole by locking the angle code through the leveling angle code.
Furthermore, the end section bar bending structure of the edge-covered end part cladding putty limit bar can completely cover the main frame section bar, and the worn main frame section bar can not be seen after the installation is completed.
Further, the inner side of the first cover side is provided with a cover side clamping groove which is clamped with the first flange, the outer side of the second flange is provided with a first clamping convex block, the connecting strip is matched and clamped with the first clamping convex block of the second flange through the second clamping convex block of the end part, and after a door leaf is installed, the hidden main frame and the main frame cover side can be correspondingly matched and clamped and connected, so that the installation is convenient.
The invisible door system provided by the invention further comprises a door leaf, wherein the door leaf is arranged on the invisible door frame with the structure.
The invisible door system is installed with a door leaf system in a staged mode, and the specific method is as follows:
(1) The hidden main frame is fixedly installed in the door opening in advance;
(2) Hiding the main frame, the wall surface and the wall hole surface for integrated decoration;
(3) And installing the main frame cover edge, and then installing the door leaf and adjusting.
The main frame is pre-buried in a door opening in the step (1), the large surface of the third mounting edge of the main frame is adjusted to be flush with the large surface of the wall body, and then the first mounting edge of the main frame is mounted on the side edge of the wall opening through a mounting and fixing code and is fixed;
and (2) carrying out putty hanging and putty coating treatment by taking a putty limit strip of a third installation edge as a reference, then brushing paint or other decorations on the surface, carrying out putty hanging and putty coating treatment by taking a wall hole side edge and a decorative plate limit strip as a reference on the second installation edge, and then brushing paint or other decorations on the surface.
The hidden frame door system provided by the invention has the advantages that 1, the embedded auxiliary frame is avoided by directly embedding the main frame, one installation procedure is reduced, and materials are saved; 2. the decoration construction is completed directly without stopping and waiting, and the door leaf is installed after the completion; 3. the door leaf is not required to be protected in the decoration process, the passive damage of the outer surface of the door leaf is avoided, the construction period is directly shortened, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural view of a hidden door system according to the present invention.
Fig. 2 is a schematic structural view of the invisible doorframe of the present invention.
Fig. 3 is a schematic structural view of a main frame section of the invisible doorframe of the present invention.
Fig. 4 is a schematic structural view of the invisible door frame cover side section bar in the invention.
Fig. 5 is a schematic view showing the installation of the invisible doorframe according to the first embodiment of the present invention.
Fig. 6 is a schematic view of the installation of a second embodiment of the invisible doorframe according to the present invention.
Fig. 7 is a schematic view of the installation of the invisible door frame and the hinge in the present invention.
Fig. 8 is a schematic view of the structure of the unfolded state of fig. 7.
In the figure: the main frame section bar 1, the first installation edge 11, the second installation edge 12, the third installation edge 13, the corner code installation groove 130, the decorative plate limit bar 14, the cavity edge 15, the first flange 16, the second flange 17, the first clamping convex block 170, the third flange 18, the putty limit bar 19, the cover edge section bar 2, the first cover edge 21, the second cover edge 22, the connecting bar 23, the second clamping convex block 230, the wrapping edge 24, the cover edge clamping groove 25, the installation fixing code 3, the door leaf 4 and the hinge 5.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example 1
The pre-buried invisible door frame shown in fig. 1 comprises a hidden main frame and a main frame cover edge;
the hidden main frames comprise a left main frame, a right main frame and a top main frame, and the three main frames adopt the same main frame section bar 1;
the main frame cover edges comprise a left main frame cover edge, a right main frame cover edge and a top main frame cover edge, and all three main frame cover edges adopt the same cover edge profile 2;
as shown in fig. 2 to 4, the main frame profile 1 comprises a first mounting edge 11, and a second mounting edge 12 and a third mounting edge 13 connected to both ends of the first mounting edge 11, wherein the second mounting edge 12 is opposite to the third mounting edge 13;
one side of the first installation edge 11, which is close to the wall surface, is fixedly connected with one end, close to the outside, of the installation fixing code 3 through a screw, the installation fixing code 3 is clung to the wall surface, one end, close to the outside, of the installation fixing code 3 is fixed on the wall surface through the screw, and the installation fixing code 3 can prevent the main frame profile 1 from being directly driven into the wall surface to generate cracking;
the second installation edge 12 extends towards one end far away from the main frame section bar 1 to form a decorative plate limiting strip 14, when the decorative plate is used, the decorative plate limiting strip 14 is used for positioning the decorative plate, the installation is more convenient, and when the side surface of a wall hole is closed by muddy water, the decorative plate limiting strip 14 plays a role in construction limiting;
one end far away from the first mounting edge 11 extends towards the third mounting edge 13 to form a cavity edge 15, and two ends of the cavity edge 15 extend towards the first mounting edge 11 to form a first flange 16 and a second flange 17;
the end part of the third installation edge 13 extends towards the second flange 17 to form a third flange 18, the third flange 18 is connected with the second flange 17, the end part of the third installation edge 13 is also provided with a putty limiting strip 19, the putty limiting strip 19 limits the positions and the heights of decorative materials such as putty through bending the raised edges, and the putty or cement can be conveniently connected with the main frame better;
the cover side profile 2 comprises a first cover side 21 and a second cover side 22 which are connected;
the first cover edge 21 is clamped on the first flange 16, a connecting strip 23 which is in the same direction as the first cover edge 21 extends from the end part of the second cover edge 22, which is far away from the first cover edge 21, the connecting strip 23 is clamped on the second flange 17, a binding edge 24 which is clung to the third flange 18 and one side edge of the putty limiting strip 19 is arranged on the end part of the second cover edge 22, which is far away from the first cover edge 21, and a groove is further formed in the binding edge 24 and used for installing a door leaf 4 anti-collision strip;
the cavity edge 15, the first flange 16, the second flange 17, a portion of the first cover edge 21, and the second cover edge 22 form a hinge mounting cavity for mounting the hinge 5.
One side of the first installation edge 11, which is close to the wall surface, is fixedly connected with one outdoor end of the installation fixing code 3 through a screw, the installation fixing code 3 is tightly attached to the wall surface, one outdoor end of the installation fixing code 3, which is close to the wall surface, is fixed on the wall surface through a screw, and the installation fixing code 3 can avoid the main frame profile 1 from being directly driven into the wall surface to crack.
The first installation limit 11 is equipped with the wave line with the one side of installation fixed code 3 laminating for installation fixed code 3 is connected more stably with main frame section bar 1.
The outer side of the third mounting edge 13 is provided with wavy lines, so that putty or cement can be better attached to the first mounting edge 11.
The third mounting edge 13 is further provided with an angle code mounting groove 130 for mounting a leveling angle code, and the three-side main frame is formed into a whole by locking the angle code through the leveling angle code.
The end section bar bending structure of the end cladding putty limit strip 19 of the edge 24 can cover the main frame section bar 1 completely, the main frame section bar 1 which is worn can not be seen after the installation is completed, in addition, the outer side surface of the edge 24 is provided with a groove for installing a door leaf anti-collision strip, the cover edge section bar is fixed on the main frame by a screw in the groove, and the cover edge section bar can be covered by the anti-collision strip.
The inner side of the first cover edge 21 is provided with a cover edge clamping groove 25 which is clamped with the first flange edge 16, the outer side of the second flange edge 17 is provided with a first clamping convex block 170, the connecting edge is matched and clamped with the first clamping convex block 170 of the second flange edge 17 through a second clamping convex block 230 at the end part, and after the door leaf 4 is installed, the hidden main frame and the main frame cover edge can be correspondingly matched and clamped and connected, so that the installation is convenient.
The hidden frame door system provided by the invention further comprises the door leaf 4, wherein the door leaf 4 is arranged on the hidden frame with the structure.
As shown in fig. 5, 7 and 8, the main door frame system and the door leaf system provided by the invention are installed in stages, and the specific method is as follows:
(1) The hidden main frame is fixedly installed in the door opening in advance;
(2) Hiding the main frame, the wall surface and the wall hole surface for integrated decoration;
(3) The main frame cover edge is installed, and then the door leaf 4 is installed and adjusted.
The main frame is pre-buried in a door opening in the step (1), the large surface of a third mounting edge 13 of the main frame is adjusted to be flush with the large surface of a wall body, and then a first mounting edge 11 of the main frame is mounted on the side edge of the wall opening through a mounting and fixing code 3 and is fixed;
in the step (2), putty hanging and putty coating treatment are carried out by taking a putty limit strip 19 of a third mounting edge 13 as a reference, then surface painting or other decoration is carried out, putty hanging and putty coating treatment are carried out by taking a wall hole side edge and a decorative plate limit strip 14 as a reference, and then surface painting or other decoration is carried out;
in the step (3), after the hidden main frame is installed and the main decoration engineering is finished, the main frame cover edge is installed again, one side is firstly installed to erect the door main frame cover edge, then the door top frame cover edge is installed, the left side is finally installed to adjust the door main frame cover edge, the door main frame cover edge is fixed on the door main frame by screws, the door leaf 4 can be installed after the main frame cover edge installation work is finished, the hinge 5 is firstly installed to the door leaf 4, and the door leaf 4 is installed on the door main frame system by the hinge 5.
Example 2
In the hidden main frame installation method, that is, in the step (1), the main frame is pre-embedded in the door opening, the large surface of the third installation edge 13 of the main frame is adjusted to protrude out of the large surface of the wall, and then the first installation edge 11 of the main frame is installed and fixed on the side edge of the wall opening through the installation fixing code 3;
in the step (2), putty is hung based on a putty limit strip 19 of the third mounting edge 13, and then the putty is subjected to putty coating or other decoration, and then the putty is hung based on a decorative board limit strip 14 on the side of the wall hole and the second mounting edge 12, and then the putty is subjected to putty coating or other decoration.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. Invisible door frame, its characterized in that: comprises a hidden main frame and a main frame cover edge;
the hidden main frames comprise a left main frame, a right main frame and a top main frame, and the three main frames adopt the same main frame section bar (1);
the main frame cover edges comprise a left main frame cover edge, a right main frame cover edge and a top main frame cover edge, and all three main frame cover edges adopt the same cover edge section bar (2);
the main frame profile (1) comprises a first installation edge (11), a second installation edge (12) and a third installation edge (13), wherein the second installation edge (12) and the third installation edge (13) are connected to the two ends of the first installation edge (11), and the second installation edge (12) is opposite to the third installation edge (13);
the first installation edge (11) is one side close to the wall surface;
the second mounting edge (12) extends towards one end far away from the main frame section bar (1) to form a decorative plate limit strip (14), one end far away from the first mounting edge (11) extends towards the third mounting edge (13) to form a cavity edge (15), and two ends of the cavity edge (15) extend towards the other end far away from the first mounting edge (11) to form a first flange (16) and a second flange (17);
the end part of the third installation edge (13) extends towards the second flange (17) to form a third flange (18), the third flange (18) is connected with the second flange (17), and the end part of the third installation edge (13) is also provided with a putty limiting strip (19);
the cover edge section bar (2) comprises a first cover edge (21) and a second cover edge (22) which are connected;
the first cover edge (21) is clamped on the first flange (16), a connecting strip (23) which is in the same direction as the first cover edge (21) is extended from the end part of the second cover edge (22) far away from the first cover edge (21), the connecting strip (23) is clamped on the second flange (17), and a binding edge (24) which is clung to the third flange (18) and one side edge of the putty limiting strip (19) is arranged at the end part of the second cover edge (22) far away from the first cover edge (21);
the cavity side (15), the first flange (16), the second flange (17), part of the first cover side (21) and the second cover side (22) form a hinge installation cavity for installing the hinge (5).
2. A invisible doorframe according to claim 1, wherein: one side of the first installation edge (11) close to the wall surface is fixedly connected with one end, close to the outside, of the installation fixing code (3) through a screw, and one end, close to the outside, of the installation fixing code (3) is tightly attached to the wall surface and is fixed to the wall surface through a screw.
3. A invisible doorframe according to claim 2, wherein: and a side edge, which is attached to the first installation edge (11) and the installation fixing code (3), is provided with wavy lines.
4. A invisible doorframe according to claim 1, wherein: the outer side edge of the third installation edge (13) is provided with wavy lines.
5. A invisible doorframe according to claim 1, wherein: and the third installation edge (13) is also provided with an angle code installation groove (130) for installing the leveling angle code.
6. A invisible doorframe according to claim 1, wherein: the end section bar bending structure of the putty limiting strip (19) is coated at the end part of the wrapping edge (24).
7. A invisible doorframe according to claim 1, wherein: the inner side of the first cover side (21) is provided with a cover side clamping groove (25) which is clamped with the first flange (16), the outer side of the second flange (17) is provided with a first clamping convex block (170), and the connecting strip (23) is matched and clamped with the first clamping convex block (170) of the second flange (17) through a second clamping convex block (230) at the end part.
8. Hidden frame door system still includes door leaf (4), its characterized in that: door leaf (4) is mounted on a concealed door frame as claimed in any one of claims 1 to 7.
9. The method of installing a hidden frame door system of claim 8, wherein: the main door frame system and the door leaf system are installed in stages, and the concrete method is as follows:
(1) The hidden main frame is fixedly installed in the door opening in advance;
(2) Hiding the main frame, the wall surface and the wall hole surface for integrated decoration;
(3) And installing the main frame cover edge, and then installing the door leaf and adjusting.
10. A method of installing a hidden frame door system as claimed in claim 9, wherein:
in the step (1), the main frame is pre-buried in a door opening, the large surface of a third mounting edge (13) of the main frame is adjusted to be flush with the large surface of a wall body, and then a first mounting edge (11) of the main frame is mounted on the side edge of the wall opening through a mounting and fixing code (3) and is fixed;
in the step (2), putty is hung based on a putty limit strip (19) of a third mounting edge (13), and then the putty is subjected to putty coating or other decoration, and then the putty is hung based on a decorative board limit strip (14) on the side edge of a wall hole and on the second mounting edge (12), and then the putty is subjected to putty coating or other decoration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310266272.5A CN116971692A (en) | 2023-03-20 | 2023-03-20 | Invisible door frame, main frame pre-buried invisible door system and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310266272.5A CN116971692A (en) | 2023-03-20 | 2023-03-20 | Invisible door frame, main frame pre-buried invisible door system and installation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116971692A true CN116971692A (en) | 2023-10-31 |
Family
ID=88482068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310266272.5A Pending CN116971692A (en) | 2023-03-20 | 2023-03-20 | Invisible door frame, main frame pre-buried invisible door system and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116971692A (en) |
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2023
- 2023-03-20 CN CN202310266272.5A patent/CN116971692A/en active Pending
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