ANTI-CRACK ASSEMBLY FOR CORNER WALL OF DOOR AND WINDOW

Description

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to an anti-crack assembly used as a building component, especially to an anti-crack assembly for corner walls of doors and windows.

Description of Related Art

Generally, walls of buildings are installed with windows. When the building has thermal expansion or vibration due to earthquake, cracks occur around corners of the windows or doors in the wall. Rain water can infiltrate the building through the cracks. In order to improve anti-crack strength of wall structure around the corners of the windows or doors and protect the wall structure around the corners from cracks or micro-cracks due to earthquake or other external forces, inventors of the present invention have invented and developed products related to anti-crack assembly for corner walls of doors and windows in sequence as those revealed in Taiwanese Pat. Pub. No. I650468 “AN ANTI-CRACKING COMPONENT OF STRUCTURAL WALL FOR WINDOW CORNER”, Taiwanese Pat. Pub. No. M582057 “FIXING STRUCTURE FOR ANTI-CRACKING COMPONENT OF WINDOW ANGLE WALL SURFACE”, Taiwanese Pat. Pub. No. I695106 “ANTI-CRACKING COMPONENT STRUCTURE FOR DOOR AND WINDOW CORNER WALLS”, Taiwanese Pat. Pub. No. M594053 “DOOR AND WINDOW CORNER WALL CRACK-RESISTING COMPONENT STRUCTURE”, Taiwanese Pat. Pub. No. M592012 “DOOR AND WINDOW CORNER WALL SURFACE ANTI-CRACKING COMPONENT STRUCTURE”, Taiwanese Pat. Pub. No. I708882 “ANTI-CRACKING ASSEMBLY STRUCTURE FOR CORNER OF DOOR AND WINDOW”, JP U.S. Pat. No. 6,828,196 “A DOOR WINDOW CORNER WALL ANTI-CRACKING ASSEMBLY STRUCTURE”, and Chinese Pat. Pub. No. CN211775119U “DOOR AND WINDOW CORNER WALL CRACK PREVENTION COMPONENT STRUCTURE”.

In order to increase connection stability between the anti-crack component and the wall structure, the inventor has further developed an anti-cracking component structure of corner wall surfaces of a door or window in Taiwanese Pat. Pub. No. I740706. Please refer to FIG. 14, the anti-cracking component structure n mainly includes a plurality of reinforcement concaves n2 formed on a surface of an anti-cracking component n1. Thus the wall structure is attached to the reinforcement concaves n2 on the surface of the anti-cracking component n1 to increase bond area and connection stability of the wall structure. Therefore, anti-cracking performance is further improved.

According to the above description, the inventor of the present invention keeps improving the products in order to make the products more useful and more practical. Recently the inventor found that in the anti-cracking component structure of corner wall surfaces of a door or window revealed in Taiwanese Pat. Pub. No. I740706, the bond area between the anti-cracking component n1 and the wall structure is still insufficient although the bond area is increased by the reinforcement concaves n2 formed on the surface of the anti-cracking component n1. Thus there is room for improvement and there is a need to provide a novel anti-cracking component.

SUMMARY OF THE INVENTION

Therefore, it is a primary object of the present invention to provide an anti-crack assembly for wall surfaces at corners of doors and windows in which not only bond area between an anti-crack component and a wall structure is significantly increased, connection stability between the anti-crack component and the wall structure as well as anti-crack performance is also improved.

In order to achieve the above object, an anti-crack assembly for corner walls of doors and windows according to the present invention mainly includes a plurality of anti-crack components each of which is provide with a plurality of ribs and a plurality of grooves, both spaced apart from one another and arranged at a surface of the respective crack components. The rib of the anti-crack component is provided with a plurality of reinforcement concaves and at least one gap is formed on at least one side of the reinforcement concave. While concrete is flowing through the surface of the anti-crack component, the concrete is not only attached to the reinforcement concaves on the surface of the anti-crack component but also filled into the gap on the side of the reinforcement concave and covering a protruding piece connected with the gap and located on a back surface of the anti-crack component. After setting of the concrete to form a wall structure, bond area and connection stability between the anti-crack component and the wall structure are significantly increased. Anti-crack performance of corners of door and window frames in RC (reinforce concrete) walls is further improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an embodiment according to the present invention;

FIG. 2 is a front view of an anti-crack component of an embodiment according to the present invention;

FIG. 3 is a partial enlarged perspective view of an anti-crack component of an embodiment according to the present invention;

FIG. 4 is a partial enlarged sectional view of an anti-crack component of an embodiment according to the present invention;

FIG. 5 is a partial enlarged front view of an anti-crack component of an embodiment according to the present invention;

FIG. 6 is another partial enlarged front view of an anti-crack component of an embodiment according to the present invention;

FIG. 7 is a schematic drawing showing an embodiment installed on a door frame and a window frame while in use according to the present invention;

FIG. 8 is a perspective view showing an embodiment mounted with reinforcing bars in use according to the present invention;

FIG. 9 is a top view showing an embodiment mounted with reinforcing bars in use according to the present invention;

FIG. 10 is a schematic drawing showing an anti-crack component and a wall structure both in a covered state of an embodiment according to the present invention;

FIG. 11 is another schematic drawing showing an anti-crack component and a wall structure both in a covered state of an embodiment according to the present invention;

FIG. 12 is a further schematic drawing showing an anti-crack component and a wall structure both in a covered state of an embodiment according to the present invention;

FIG. 13 is a partial enlarged view of an anti-crack component of another embodiment according to the present invention;

FIG. 14 is a front view showing structure of an anti-crack assembly for corner walls of doors and windows available now.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

In order to learn technical content, features, and functions of the present invention more clearly and completely, please refer to the following embodiments with related figures and reference signs.

Refer to FIG. 1, an anti-crack assembly for corner walls of doors and windows according to the present invention is provided. The anti-crack assembly for corner walls of doors and windows includes a plurality of anti-crack components 1 corresponding to and spaced apart from one another, a plurality of fixing rods 2, and at least one positioning rod 3.

The anti-crack component 1 consists of a first piece portion 11 arranged vertically and a second piece portion 12 disposed horizontally. The first piece portion 11 and the second piece portion 12 are connected vertically to form one part in an L-shape. One side of the first piece portion 11 and one side of the second piece portion 12 are combined to form a L-shaped notch 13. Two adjacent fixing holes 14 are disposed beside the notch 13 along both an end edge 111 of the first piece portion 11 in a lengthwise direction and an end edge 121 of the second piece portion 12 in a lengthwise direction. One of the fixing holes 14 is located at a corner beside the notch 13. Moreover, the anti-crack component 1 is provided with a front surface and a back surface arranged opposite to each other. A plurality of grooves 18 spaced apart from one another is formed on the front surface of the anti-crack components 1 and a rib 19 is arranged between the two adjacent grooves 18. The plurality of the grooves 18 and the plurality of ribs 19 are tilted at an angle and arranged in parallel to each other. The groove 18 and the rib 19 are respectively provided with a plurality of through holes 181 and a plurality of reinforcement concaves 191 in a lengthwise direction.

The fixing rods 2 are inserted through and fixed in the two fixing holes 14 of the first piece portion 11 and the two corresponding fixing holes 14 of the second piece portion 12 of the respective anti-crack components 1. The first piece portion 11 is provided with two imaginary vertical lines 151 which are defined as imaginary lines vertically passed through two of the fixing rods 2. The second piece portion 12 is provided with two imaginary horizontal lines 152 which are defined as imaginary lines horizontally passed through another two of the fixing rods 2. An operation area 16 is formed and defined by the two imaginary vertical lines 151, the two imaginary horizontal lines 152, the end edge 111 of the first piece portion 11, and the end edge 121 of the second piece portion 12. At least one positioning hole 17 is arranged at the operation area 16.

The positioning rod 3 is inserted through the positioning holes 17 of the respective anti-crack components 1 correspondingly. In this embodiment, the positioning rod 3 is an iron nail provided with a sharp end 31 and a stopping end 32 located at two opposite ends of the positioning rod 3 correspondingly. A rod surface of the positioning rod 3 is abutting against a hole wall of the positioning hole 17. Also refer to FIG. 2, FIG. 3, and FIG. 4, the anti-crack assembly according to the present invention features on that: at least one gap 192 is formed on at least one side of the reinforcement concave 191 in the anti-crack component 1. In this embodiment, the respective sides of the reinforcement concave 191 are provided with the gap 192 by punching in a lengthwise direction. A U-shaped protruding piece 193 connected with the gap 192 is formed on the back surface of the anti-crack component 1. Also refer to FIG. 5, a plurality of first projecting blocks 182 spaced apart from one another is disposed on at least one side of the groove 18 of the anti-crack component 1. In a preferred embodiment, the first projecting blocks 182 are spaced apart from one another and arranged at the respective sides of the groove 18 lengthwise and an interval is formed between the two adjacent first projecting blocks 182. Also refer to FIG. 6, at least one side of the front surface of the L-shaped anti-crack component 1 is provided with a plurality of second projecting blocks 10 spaced apart from one another. In this embodiment, the second projecting blocks 10 spaced apart from one another are disposed on a periphery of the front surface of the L-shaped anti-crack component 1 and an interval is formed between the two adjacent second projecting blocks 10. Both the first projecting blocks 182 and the second projecting blocks 10 are pyramids.

While in use, also refer to FIG. 7, the present anti-crack assembly is mounted to an outer side of at least one corner of a door frame 41 or a window frame 42. The notch 13 is matched with the corner of the door frame or window frame 41, 42. Also refer to FIG. 8 and FIG. 9, one end of the fixing rod 2 is abutting against a template 5 and a sharp end 31 of the positioning rod 3 is inserted and stopped in the template 5. Then the stopping end 32 of the positioning rod 3 is driven by striking tools in construction personnel's hands so that the sharp end 31 of the positioning rod 3 is driven and fixed in the template 5. After a plurality of the present assemblies being driven into the template 5 and fixed at the corners of the door and the window frames 41, 42, a plurality of reinforcing bars 6 is arranged vertically and horizontally along a periphery of the door and the window frames 41, 42. While being applied, vertical steel rebars 61 and horizontal steel rebars 62 are respectively mounted in a corresponding reinforcing bar mounting area 21 through an outer side 112 of the first piece portion 11 and an outer side 122 of the second piece portion 12. The reinforcing bar mounting area 21 is formed between the outer side 112 of the first piece portion 11 and the adjacent fixing rod 2 as well as the outer side 122 of the second piece portion 12 and the adjacent fixing rod 2. The vertical steel rebars 61 and the horizontal steel rebars 62 are respectively leaning against the fixing rod 2 adjacent to the outer side 112 of the first piece portion 11 and the fixing rod 2 adjacent to the outer side 122 of the second piece portion 12. Thereby convenience in arrangement of the reinforcing bars 6 is improved and an intersection between the vertical steel rebars 61 and the horizontal steel rebars 62 is tied and fixed by iron wires.

Next ready-mix concrete is filled into a space formed among the templates 5. At the moment, liquid concrete flows smoothly among the anti-crack components 1 through the plurality of the through holes 181 on the anti-crack components 1 so that the front surface and the back surface of the respective anti-crack components 1 are completely covered with the concrete. Also refer to FIG. 10, when the concrete is covering the surfaces of the anti-crack component 1, the concrete is not only attached to the plurality of the reinforcement concave 191 on the front surface of the anti-crack component 1 but also filled into the gap 192 on the side of the reinforcement concave 191. The U-shaped protruding piece 193 connected with the gap 192 and located at the back surface of the anti-crack component 1 is also covered with the concrete. Also refer to FIG. 11, when the concrete is attached to the groove 18 of the anti-crack component 1, the concrete is further filled into the intervals between the two adjacent first projecting blocks 182 arranged at the respective sides of the groove 18 and forming a shape able to be engaged with the pyramidal first projecting blocks 182 correspondingly. Also refer to FIG. 12, the concrete is also filled into the intervals between the two adjacent second projecting blocks 10 on the periphery of the front surface of the anti-crack component 1 and forming a shape able to be engaged with the pyramidal second projecting blocks 10 correspondingly while the front surface of the anti-crack component 1 being covered with the concrete.

After solidification of the concrete to form a wall structure 7, the wall structure 7 is provided with a plurality of first bond portions 71, a plurality of second bond portions 72, and a plurality of third bond portions 73. The first bond portions 71 are not only formed in the wall structure 7 and mounted in the reinforcement concave 191 of the anti-crack component 1, but also filled in the gap 192 on the side of the reinforcement concave 191, and covering the U-shaped protruding piece 193 connected with the gap 192 correspondingly. As to the second bond portions 72, they are mounted in the grooves 18 and the intervals between the two adjacent first projecting blocks 182 at the respective sides of the grooves 18 of the anti-crack component 1. The third bond portions 73 are mounted in the intervals between the two adjacent second projecting blocks 10 on the periphery of the anti-crack component 1. Thereby bond area between the present anti-crack component 1 and the wall structure 7 is significantly increased so that connection stability between the present anti-crack component 1 and the wall structure 7 is improved. Thus friction, dislocation, displacement, or even separation between the present anti-crack component 1 and the wall structure 7 is difficult to occur. When the reinforced concrete (RC) walls have vibrations due to earthquake or thermal expansion due to external forces, stress is created at corners of the door and the window frames 41, 42. By stable connection between the wall structure 7 and the present invention at the corners of the door and the window frames 41, 42, strength and anti-crack performance of the wall structure 7 at the corners of the door and the window frames 41, 42 are further improved. Thereby the wall structure 7 at the corners of the door and the window frames 41, 42 and its paint layers on the surfaces are protected from cracks or micro-cracks.

The above embodiments or figures are not intended to limit implementations of the present invention. Besides the pyramid, the first projecting blocks 182 and the second projecting blocks 10 disposed on the anti-crack component 1 can also be a polygon such as rectangle (as shown in FIG. 13), triangle, etc.

According to the above embodiments, it is learned that the present invention has the following advantages.

• • 1. The improvement of the present anti-crack component is in the gap formed on the side of the reinforcement concave as well as the U-shaped protruding piece connected with the gap. After setting of the concrete to form the wall structure, the first bond portions which are mounted in the reinforcement concave, filled in the gap on the side of the reinforcement concave, and covering the U-shaped protruding piece connected with the gap correspondingly are formed in the wall structure. Thereby not only bond area between the anti-crack component and the wall structure is significantly increased, connection stability between the anti-crack component and the wall structure is also improved. Thus friction, dislocation, displacement, or even separation between the present anti-crack component and the wall structure is difficult to occur. Anti-crack performance of the corners of the door and the window frames in the RC walls are further improved.
  • 2. The improvement of the present anti-crack component is in the plurality of first projecting blocks formed on the respective sides of the groove of the anti-crack component. After setting of the concrete to form the wall structure, the second bond portions are mounted in the grooves and the intervals between the two adjacent first projecting blocks at the respective sides of the grooves. Thereby the bond area and the connection stability between the anti-crack component and the wall structure are further increased and so is the anti-crack performance of the corners of the door and the window frames in the RC walls.

3. The improvement of the present anti-crack component is in the plurality of the second projecting blocks disposed on the periphery of the anti-crack component. After setting of the concrete to form the wall structure, the third bond portions are mounted in the intervals between the two adjacent second projecting blocks on the periphery of the anti-crack component. Thereby the bond area and the connection stability between the anti-crack component and the wall structure are further increased and so is the anti-crack performance of the corners of the door and the window frames in the RC walls.

Additional advantages and modifications will readily occur to those skilled in the art. Therefore, the invention in its broader aspects is not limited to the specific details, and representative devices shown and described herein. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalent.