A mounting assembly for wall and door frame interface

Abstract

The application discloses a mounting combination for a wall and a door frame interface, a fixed L-shaped metal corner (3) is arranged in a door hole, the L-shaped metal corner (3) is provided with a batched mortar layer (2) on the periphery, a door frame (6) is accommodated in the L-shaped metal corner (3) and is fixed, and a sealing pressing strip (8) is arranged between the door frame (6) and the door hole boundary. The mounting combination ensures that the door frame can be mounted on a brick wall and a block wall.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, and in particular to an installation assembly for the interface between a wall and a door frame. BACKGROUND

[0002] European walls are known as "dry walls", which use a metal frame as the skeleton of the wall, and the metal frame is covered with one or two layers of plasterboard to form the surface of the wall. The surface of the plasterboard is painted or wallpapered, so that there is no need to lay bricks or plaster during construction.

[0003] Figure 1 A cross-sectional view of the installation structure of a European door frame is shown schematically. Wooden frames 200 are fixed to the inner side of the metal frame 100 on both sides and the top of the door opening, and metal plates 400 for receiving the metal door frame 300 are fixed to the outer side of the metal frame 100. The metal door frame 300 is fixed to the metal plates 400 from the inside of the wall by screws 500. The metal door frame 300 installed in this structure is sufficient to withstand the impact of the door 800. After the metal door frame 300 is installed, the gap 700 between the metal door frame 300 and the boundary of the door opening is covered with plasterboard 600, and the plasterboard 600 is painted or wallpapered for decoration.

[0004] The walls in Hong Kong, China are built with bricks or lightweight concrete blocks. A layer of plaster (usually 15mm thick) is formed on the surface of the wall to make the wall surface smooth, so that decorative materials such as paint or wallpaper can be applied to the wall. The walls in Hong Kong, China have no gaps inside, so the door frame cannot be fixed from the inside of the wall structure. Due to the difference in structure between European and Hong Kong, China walls, the door frame cannot be directly fixed to the brick walls and block walls in Hong Kong, China. SUMMARY

[0005] To solve one or more technical problems of the prior art, the present application provides an installation assembly for the interface between a wall and a door frame, a door opening boundary is fixed with an L-shaped metal corner, the periphery of the L-shaped metal corner has a layer of plaster, and a door frame is received inside the L-shaped metal corner and fixed, and a sealing strip is provided between the door frame and the door opening boundary.

[0006] The interface structure of the present embodiment has the following advantages: (1) it ensures that the door frame can be installed on brick walls and block walls; (2) the L-shaped metal corner facilitates the building construction party to complete all surface treatments (such as plastering and painting) on the wall surface before installing the door frame, avoiding damage to the door when the surface of the wall is treated; (3) the L-shaped metal corner can fix the size of the door frame, and the building construction party can determine all the sizes of the door frame in advance as early as possible, everyone will follow these sizes, eliminating uncertainty and on-site work errors.

[0007] In some embodiments, the L-shaped metal angle is secured to the structural wall at the door opening boundary using expansion screws. A layer of grout is placed between the L-shaped metal angle and the structural wall, and the door frame is secured to the L-shaped metal angle using self-tapping screws. The high strength of the structural wall creates a strong grip with the expansion screws, ensuring a secure installation of the L-shaped metal angle. The expansion of the expansion tube creates significant pressure on the outer surface of the expansion screw, increasing friction and significantly exceeding the pull-out force on the expansion screw, ensuring that the expansion screw will not be pulled out.

[0008] In some embodiments, the L-shaped metal angle includes a first side panel and a second side panel, the first side panel is fixed to the structural wall by expansion screws, a grouting layer is filled between the first side panel and the structural wall, and the front and back of the grouting layer and the outer side of the second side panel are covered with a plaster layer.

[0009] In some embodiments, the door frame includes a door frame and a door stop strip connected to the door frame. The door frame is received within the inner side of the L-shaped metal angle and secured to the first side panel. The door stop strip faces the plaster layer on the outer side of the second side panel. The plaster layer is primed with the second side panel, filling the gap between the door stop strip and the structural wall, enabling the door frame to be installed in brick and block walls.

[0010] In some embodiments, elastically deformable sealing strips are provided on the front and rear sides of the gap between the door frame and the door opening. After elastic deformation, the sealing strips squeeze the plaster layer on the door opening edge, obscuring the gap between the door frame and the door opening edge, thereby enhancing the aesthetically pleasing interface structure.

[0011] In some embodiments, the sealing strip includes a round tube and a T-shaped insert connected to the outer wall of the round tube. The door frame is provided with a T-shaped slot, the T-shaped insert is inserted into the T-shaped slot, and the round tube is close to the edge of the door opening.

[0012] In some embodiments, a buffer strip is provided on the front side of the door stop strip, and a slot is provided at the position where the door cover is connected to the door stop strip, and one side of the buffer strip is clamped in the slot.

[0013] In some embodiments, the sealing strip is made of neoprene. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A cross-sectional view showing the mounting structure of an existing European metal door frame.

[0015] Figure 2 A cross-sectional view of an installation assembly for a wall and door frame interface according to an embodiment of the present invention is shown.

[0016] Figure 3 for Figure 2 A partial enlarged view of the installation combination for the wall and door frame interface is shown.

[0017] Figure 4A schematic cross-sectional view of a door frame used for an installation assembly at a wall and door frame interface according to an embodiment of the present invention.

[0018] Figure 5 This is a schematic cross-sectional view of a sealing strip used in an installation assembly at the interface of a wall and a door frame according to one embodiment of the present invention.

[0019] Explanation of symbols:

[0020] Metal frame 100, wooden frame 200, metal door frame 300, metal plate 400, screws 500, gypsum board 600, gap 700, door 800

[0021] Structural wall 1, plaster layer 2, L-shaped metal angle 3, expansion screws 4, grouting layer 5, door frame 6, self-tapping screws 7, sealing strip 8, hinged door 9, first side panel 10, second side panel 11, door cover 13, door stop strip 14, round tube 15, T-shaped insert 16, T-shaped slot 17, buffer strip 18, slot 19, blank area 20, gap 21, decorative layer 22. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Please refer to Figure 2 The structural wall 1 is provided with a door opening, in which a door frame 6 and a sliding door 9 are mounted. The structural wall 1 can be constructed of bricks or lightweight concrete blocks. The sliding door 9 is mounted on the door frame 6 and can be opened and closed forward and backward. For ease of explanation, the door opening direction is defined as "forward" and the door closing direction is defined as "rearward."

[0024] Please refer to Figure 2 and Figure 3 In the disclosed installation assembly for the interface between a wall and a door frame, an L-shaped metal corner 3 is fixed to the edge of the door opening. A plaster layer 2 is applied to the periphery of the L-shaped corner 3. A door frame 6 is received and fixed inside the L-shaped corner 3. A sealing strip 8 is provided between the door frame 6 and the door opening edge. The plaster layer 2 protects the structural wall 1 and facilitates the subsequent application of a decorative layer 22 such as paint or wallpaper.

[0025] Please refer to Figure 3The L-shaped metal angle 3 is fastened to the structural wall 1 at the boundary of the door opening by expansion screws 4, and a grouting layer 5 is filled between the L-shaped metal angle 3 and the structural wall 1. The door frame 6 is fastened to the L-shaped metal angle 3 by self-tapping screws 7. Specifically, the L-shaped metal angle 3 comprises a first side plate 10 and a second side plate 11 perpendicular to the first side plate 10. The expansion screws 4 are passed through the first side plate 10 and are screwed into the structural wall 1, thereby fixing the L-shaped metal angle 3 to the structural wall 1. The door frame 6 is fixed to the first side plate 10 by the self-tapping screws 7. The grouting layer 5 is located between the structural wall 1 and the first side plate 10, and has a certain thickness. When the surface of the structural wall 1 at the front side of the L-shaped metal angle 3 forms a plaster layer 2 that is flush with the first side plate 10, the plaster layer 2 also has sufficient thickness. The second side plate 11 is also covered with the plaster layer 2.

[0026] Please refer to Figure 4 The door frame 6 comprises a door pocket 13 and a door stop 14 connected to the door pocket 13. The door pocket 13 is accommodated in the inner side of the L-shaped metal angle 3 and is fixed to the first side plate 10. The door stop 14 is opposite to the plaster layer 2 on the outer side of the second side plate 11. The door pocket 13 can be used to fix the hinge, lock, etc. of the screen door 9, and the door stop 14 can be used to block the door. If a buffer strip 18 is arranged on the front side of the door stop 14, i.e. the side opposite to the screen door 9, the door stop 14 can also have the functions of buffering, sealing and sound insulation. A clamping groove 19 is arranged at the position where the door stop 14 is connected to the door pocket 13, and one side of the buffer strip 18 is clamped in the clamping groove 19.

[0027] In order to reduce the weight of the door frame and save materials as much as possible while ensuring strength, the cross section of the profile used in some door frames is generally a special-shaped structure, in which many unnecessary structures are omitted. For example, please refer to Figure 4 The door pocket 13 and the door stop 14 are connected only by diagonal connection, which causes a large blank area 20 to be formed between the door stop 14 and the boundary of the door opening when the door frame 6 is directly installed in the door opening, affecting the appearance. For European "dry walls", this problem can be solved by using plasterboards to block. However, for walls built with bricks or blocks in Hong Kong, China and decorated with plaster layers, the door frame 6 cannot be directly installed. In order to solve this technical problem, the L-shaped metal angle 3 is applied in the present embodiment. The second side plate 11 of the L-shaped metal angle 3 can be used to receive the plaster layer 2, and the plaster layer 2 fills the blank area 20. In construction, the plaster layer 2 can be formed on the second side plate 11 of the L-shaped metal angle 3.

[0028] The present application ensures that the door frame 6 can be installed on brick walls and block walls by fixing the L-shaped metal corner 3 on the door opening boundary. Before the door frame 6 is installed, the L-shaped metal corner 3 is pre-installed on the door opening boundary, and then the wall surface is plastered and painted. The L-shaped metal corner 3 can serve as a reference and stop for the plastering and painting construction, so that the construction party can complete all the plastering and painting work of the wall surface before the door frame 6 is installed. If the plastering and painting are to be performed after the door is installed, the door is easily damaged.

[0029] Another special function of the L-shaped metal corner 3 is that the size of the door can be determined earlier in the construction sequence. In the traditional construction sequence, the building construction party first measures the finished size of the door opening, and then manufactures a suitable door according to the measurement. In this process, miscommunication and connection errors are inevitable. The L-shaped metal corner 3 in the present embodiment can fix the size of the door frame 6. The building construction party can pre-determine all the sizes of the door frame 6, and everyone will follow these sizes, eliminating uncertainty and avoiding on-site work errors.

[0030] Generally, the door opening boundary is not strictly straight, and when designing the structural size, a tolerance is often reserved to ensure that the door frame 6 can be successfully installed into the door opening. This will cause a gap 21 between the door frame 6 and the door opening boundary. In some embodiments, referring to Figure 3 , the front and rear sides of the gap 21 are respectively provided with elastically deformable sealing strips 8. The sealing strips 8 shield the gap 21 and the L-shaped metal corner 3, making the interface structure between the door frame 6 and the door opening boundary beautiful. The sealing strips 8 are made of an elastic material, such as neoprene.

[0031] Two sealing strips 8 are respectively embedded in the door frame 6 and closely adhere to the door opening boundary. Referring to Figure 5 , the sealing strip 8 includes a circular tube 15 and a T-shaped insertion strip 16 connected to the outer wall of the circular tube 15, which has a T-shaped cross section. Referring to Figure 4 , the side of the door frame 6 opposite to the plastered layer 2 of the door opening boundary is provided with a T-shaped groove 17 extending along the length direction of the door frame 6, which has a T-shaped cross section. The sealing strip 8 is connected to the door frame 6 in a manner that the T-shaped insertion strip 16 is inserted into the T-shaped groove 17. The circular tube 15 fills the gap 21 between the door frame 6 and the door opening boundary. Since the door opening boundary is not strictly straight, the width of the gap 21 is not uniform. The circular tube 15 can deform to different degrees according to the width of the gap 21. Specifically, the deformation amount of the circular tube 15 is slightly smaller at the position where the gap 21 is wider, and the deformation amount of the circular tube 15 is slightly larger at the position where the gap 21 is narrower. Even if the width of the gap 21 is not uniform, the circular tube 15 can still closely adhere to the plastered layer 2 and fill the gap 21.

[0032] In some embodiments, a sealing strip 8 is arranged in the gap 21 between the door pocket 13 and the opposite batch plaster layer 2. Specifically, the side of the door pocket 13 opposite to the batch plaster layer 2 is provided with a T-shaped groove 17, and a sealing strip 8 is arranged in the T-shaped groove 17. The round tube 15 of the sealing strip 8 is in close contact with the batch plaster layer 2 or the decorative layer 22. A sealing strip 8 is also arranged in the gap 21 between the door stop 14 and the opposite batch plaster layer 2. Specifically, the side of the door stop 14 opposite to the batch plaster layer 2 is also provided with a T-shaped groove 17, and a sealing strip 8 is arranged in the T-shaped groove 17. The round tube 15 of the sealing strip 8 is in close contact with the batch plaster layer 2 or the decorative layer 22.

[0033] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. An installation assembly for the interface between a wall and a door frame, characterized in that: The door hole boundary is fixed with L-shaped metal corner (3), the periphery of the L-shaped metal corner (3) has batch plaster layer (2), door frame (6) is received in the inside of the L-shaped metal corner (3) and is fixed, and sealing batten (8) is arranged between the door frame (6) and the door hole boundary; The L-shaped metal corner (3) is fastened with the structure wall body (1) at the door hole boundary by expansion screw (4), and grouting layer (5) is filled between the L-shaped metal corner (3) and the structure wall body (1), and the door frame (6) is fastened with the L-shaped metal corner (3) by self-tapping screw (7); The L-shaped metal corner (3) comprises first side plate (10) and second side plate (11), the first side plate (10) is fixed with the structure wall body (1) by the expansion screw (4), and the grouting layer (5) is filled between the first side plate (10) and the structure wall body (1), and the front and back of the grouting layer (5) and the outside of the second side plate (11) are covered with the batch plaster layer (2); The door frame (6) comprises door sleeve (13) and door baffle strip (14) connected with the door sleeve (13), the door sleeve (13) is received in the inside of the L-shaped metal corner (3) and is fixed with the first side plate (10), and the door baffle strip (14) is opposite to the batch plaster layer (2) outside the second side plate (11); The door frame (6) is respectively provided with elastically deformable sealing batten (8) on the front and back sides of the gap (21) of the door hole boundary; The sealing batten (8) comprises circular tube (15) and T-shaped insertion strip (16) connected to the outer wall of the circular tube (15), T-shaped slot (17) is arranged on the door frame (6), the T-shaped insertion strip (16) is inserted into the T-shaped slot (17), and the circular tube (15) is tightly attached to the door hole boundary.

2. The mounting assembly for wall and door frame interface according to claim 1, wherein, The front side of the door baffle strip (14) is provided with buffer strip (18), the position where the door sleeve (13) is connected with the door baffle strip (14) is provided with clamping groove (19), and one side of the buffer strip (18) is clamped in the clamping groove (19).

3. The mounting assembly for wall and door frame interface according to claim 1, wherein, The material of the sealing batten (8) is neoprene.

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