TWM613834U - Anti-cracking component structure of door and window corner wall (9) - Google Patents

Abstract

This creation is related to a structure of anti-cracking components on the corner walls of doors and windows. It is mainly provided with anti-cracking elements corresponding to each other and arranged at intervals, and a number of reinforcement pits are formed on the surface of the anti-cracking element to increase the grip of the anti-cracking element The coating performance and friction coefficient, by which, when the concrete flows through the surface of the anti-crack element, it will be attached to the multiple reinforcement pits on the surface of the anti-crack element, so that after the concrete solidifies to form a wall structure, it will increase the contact with the wall. The wrapping area and bonding stability of the structure can improve the structural strength of the RC wall, thereby improving the crack resistance. According to this, when the external force acts, the effect of the external force can be effectively slowed down and the effect of the external force can be effectively prevented. The wall structure at the corner of the frame and its surface stucco layer are cracked or slightly cracked.

Description

Anti-crack component structure of door and window corner wall (9)

This creation is related to a structure of anti-crack components on the corner walls of doors and windows, especially one with multiple reinforcement pits on the surface of the anti-cracking component to increase the gripping performance and friction coefficient of the anti-cracking component, thereby improving the contact with the anti-cracking component. Combining the strength and crack resistance of the wall structure, the anti-cracking component structure of the corner wall of the door and window.

According to, in order to maintain indoor ventilation and lighting, the walls of existing buildings will be equipped with windows. When the building expands and shrinks due to heat or is shaken by an earthquake, it is easy to crack at the corners of the window frame of the wall, causing rain. Infiltrate the room from the cracks. Therefore, the creator of this case developed the "Window corner structure wall crack prevention element" of Taiwan Announcement No. I650468. Please refer to Figure 8. The window corner structure wall crack prevention element (a) contains an integrally formed part One piece part (a1) and a second piece part (a2) vertically connected to the first piece part (a1), and a plurality of holes (a3) are provided in the first piece part (a1) and the second piece part (a2) ), after the positioning rod (a4) is inserted, nail the window corner structure wall surface anti-cracking element (a) on the formwork at the corner of the window frame, and then grouting the concrete to fix the window corner structure wall surface anti-cracking element (a) It is wrapped in the wall to absorb the stress generated by the corner wall of the window frame when an earthquake occurs, so as to prevent the wall from cracking.

However, when the Taiwan Announcement No. I650468 "Window corner structure wall surface crack prevention element" is used, the positioning rod (a4) is easy to be shaken off when nailed into the mold, so the daughter of the creator of this case is researched and developed. There is Taiwan Announcement No. M582057 "Window corner wall crack prevention component fixing structure", please refer to figure 9 together, the window corner wall crack prevention component fixing structure (b) is mainly based on its anti-cracking component (b1) ) A number positioning rod (b2) is movably passed through, and a strap (b3) is tied around the number positioning rod (b2), whereby the positioning rod (b2) is looped and fixed by the strap (b3), This can prevent the positioning rods (b2) from falling unexpectedly during the installation process, so that the construction personnel can nail the positioning rods (b2) into the template.

In addition, the creator of this case has regard to the Taiwan Announcement No. I650468 "Window corner structure wall surface crack prevention element" and Taiwan Bulletin No. M582057 "Window corner wall surface crack prevention component fixing structure" when installing and using, please refer to it together As shown in the tenth figure, when the anti-cracking element (b1) is fixed on the formwork and the longitudinal steel bars (c) are installed around the window frame, the construction personnel must climb to a high place by the ladder frame to fix the longitudinal The steel bar (c) passes through the gap formed by the two fixed rods (b4) from top to bottom, and the construction worker holds the steel bar (c) and climbs the ladder frame back and forth, moving the steel bars (c) one by one from top to bottom The installation process of the installation is extremely time-consuming and labor-intensive, which greatly reduces the efficiency of on-site construction. Therefore, the creator of this case has further developed the "Door and Window Corner Wall Anti-crack Assembly Structure" of Taiwan Announcement No. I695106. Please refer to Figure 11 as well. The door and window corner wall anti-crack assembly structure (d) is mainly based on it. A gap (d13) is formed at the connection between the first piece (d11) and the second piece (d12) of the anti-cracking element (d1), and at the end of the first piece (d11) and the second piece (d12) Two adjacent fixing holes (d14) are provided at the edge of the part beside the notch (d13), and a fixing rod (d2) is respectively penetrated and fixed to the two fixing holes (d14). (d11) and the second piece (d12) pass through the two fixed rods (d2) to define the working area (d5), there is a positioning hole (d15) for the positioning rod (d4) to move through to fix On a template. In this way, please refer to the figure 12, when the door and window corner wall surface crack prevention component structure (d) is installed at the corner of the door and window frame (e), and then along the door and window frame ( e) When rebar (f) is arranged around, the rebar (f) can be directly inserted between the outer side of the first piece (d11) and the second piece (d12) and the adjacent fixing rod (d2). The steel bar rest area (d5) is placed against the fixed rod (d2), so that the steel bar (f) can be installed quickly and conveniently, and the construction efficiency on site can be greatly improved.

In addition, the creator of this case used the band (b3) to tie in the Taiwan Bulletin No. I695106 "Door and Window Corner Wall Anti-Crack Component Structure" and Taiwan Bulletin No. M582057 "Window Corner Wall Anti-crack Component Structure" The design of the positioning rod (b2) can prevent the positioning rod (b2) from falling unexpectedly; however, it takes a lot of man-hours and time to tie the positioning rod (b2) with the strap (b3) to the fixing system. cost. Therefore, the creator of this case has re-developed the Taiwan Announcement No. M594053 "Door and window corner wall crack prevention component structure (6)". Please also refer to Figure 13 for the door and window corner wall crack prevention component structure (g ) Is mainly to make the wall of the positioning rod (g3) through the positioning hole (g2) of the anti-cracking element (g1) abut against the hole wall of the positioning hole (g2). When the rod (g3) is nailed into the template, other positioning rods (g3) that have not been beaten can be stably fixed on the anti-cracking element (g1) without being shaken and dropped, and the same effect is convenient for installation, and can be omitted. The straps (b3) fix the number of positioning rods (b2) with time and cost.

In addition, the creator of this case has developed the Taiwan Announcement No. I695106 "Door and window corner wall crack prevention component structure" after installation, the wall structure at the corner of the door and window frame and its surface stucco layer will still be subjected to seismic stress And so on, microcracking occurs. Therefore, Taiwan Bulletin No. M592012 "Door and window corner wall crack prevention component structure (7)" has been further developed. Please refer to Figure 14 together. The door and window corner wall crack prevention component structure (h) is mainly used The anti-cracking elements (h1) arranged at intervals are fixedly connected with a fixing rod (h2), and a reinforcing unit (h3) and two reinforcing pieces (h31) are respectively connected to the two ends of the fixing rod (h2), and A shock-absorbing member (h32) is arranged between the two reinforcing pieces (h31), and the shock-absorbing member (h32) is arranged across the gaps of the anti-cracking elements (h1), thereby using the reinforcing unit (h3) to install The system can improve the crack resistance of the wall structure at the corner of the door and window frame, so that the wall structure and its surface stucco layer will not be micro-cracked when an earthquake occurs.

In addition, the creator of this case has developed the Taiwan Announcement No. I695106 "Door and Window Corner Wall Anti-Crack Assembly Structure" after installation. Please also refer to the figure 15 when the concrete solidifies to form a wall structure (i) , And form a reserved door and window in the wall structure (i), install the door and window frame (j) on the door and window, and use cement mortar in the gap between the door and window Filling to form a ridge (k), when the seismic stress is transferred to the ridge (k), the ridge (k) and its surface stucco layer are prone to micro-cracking. Therefore, the creator of this case developed the Taiwan case No. 108147018 "Door and window corner wall crack prevention component structure (8)". Please also refer to Figure 16 for the door and window corner wall crack prevention component structure (m) The system mainly makes the anti-cracking elements (m1) arranged at intervals to be fixed with fixed rods (m2), and also makes a reinforcement unit (m3) and two reinforcement pieces (m31) are respectively opposite to the two ends of the fixed rod (m2) A shock-absorbing member (m32) is arranged between the two reinforcing sheets (m31), and a seam reinforcement part (m33) is formed in each of the two reinforcing sheets (m31). Here, please refer to Figure 17 As shown, when the door and window corner wall surface crack prevention component structure (m) is installed and used, its ridge joint reinforcement part (m33) can be combined with the ridge joint (k) at the corner of the door and window frame (j), using The setting of the reinforcement unit (m3) of the joint reinforcement part (m33) can improve the crack resistance of the wall structure (i) and the joint (k) at the corners of the door and window frame (j) to protect the door and window frame (j) The corner joints (k) and the stucco layer will not cause micro-cracking effects during earthquakes.

The reason is that, from the research and development process of the creators of this case mentioned above, the creators of this case are using their products in practice, constantly discovering that their products can still be refined and improved, and are committed to making their products more usable and practical. The creators of this case recently discovered that if the anti-crack components of their products can be more firmly combined with the wall structure, it will be more helpful to improve the strength and crack resistance of the wall structure. The perfect concept, assisted by many years of manufacturing and design experience and knowledge in related fields, and through various ingenuity, developed the original creation.

This creation is related to an anti-crack component structure for the corner wall of doors and windows. Its main purpose is to provide a way to provide a number of reinforcement pits on the surface of the anti-crack component to increase the grip performance and friction coefficient of the anti-crack component, thereby improving the The anti-cracking element combines the strength and anti-cracking performance of the wall structure of the door and window corner wall surface anti-cracking component structure.

In order to achieve the above implementation objectives, the author has developed the following door and window corner wall crack prevention component structure, which includes:

The number of anti-cracking elements is to make the number of anti-cracking elements correspond to each other and are arranged at intervals. The anti-cracking element includes a first piece portion set up longitudinally and a second piece portion set up transversely, and the first piece Part and the second piece part are vertically connected as a whole, and a notch is formed on one side of the first piece part and the second piece part together, and the first piece part and the second piece part are respectively located at the edge of the end part. There are two adjacent fixing holes on the side of the gap;

A plurality of fixing rods are connected to the two fixing holes corresponding to the first piece portion and the second piece portion of the plurality of anti-cracking elements. A fixing rod is respectively inserted and fixedly connected to the first piece portion. The two longitudinal edges of the fixed rod, and the second piece is defined with two transverse edges passing through the two fixed rods transversely, and the two longitudinal edges and the two transverse edges are connected to the ends of the first piece and the second piece. The edges of the parts are jointly enclosed to form a working area, and at least one positioning hole is provided in the working area;

At least one positioning rod, so that the at least one positioning rod penetrates the corresponding positioning holes of the anti-cracking elements and is fixed on a template;

It is characterized in that: the anti-cracking element is formed with a plurality of reinforcement pits on the surface thereof.

In the above-mentioned door and window corner wall crack prevention component structure, the shape of the reinforcement pit of the crack prevention element is one or a combination of rectangle, triangle, inline, circle and polygon.

In the above-mentioned door and window corner wall crack prevention component structure, the crack prevention element is formed with a plurality of grooves spaced apart on its surface, and a rib is formed between two adjacent grooves, and the number of grooves is The plurality of reinforcement pits are respectively formed on the convex ribs.

In the above-mentioned door and window corner wall surface crack prevention component structure, wherein, the plurality of grooves and the plurality of protruding ribs of the crack prevention element are formed at an inclined angle and are set up parallel to each other.

In the above-mentioned door and window corner wall surface crack prevention component structure, wherein the groove of the crack prevention element is provided with a plurality of through holes.

As a result, when concrete flows through the surface of the anti-crack element, it will adhere to the multiple reinforcement pits on the surface of the anti-crack element, so that after the concrete solidifies to form a wall structure, it increases the area of the wall structure. And combined with the stability to improve the structural strength of the reinforced concrete [RC] wall, thereby enhancing the crack resistance. According to this, when the external force acts, the effect of the external force can be effectively slowed down and the external force can be effectively prevented. Cracking or micro-cracking effect occurs on the wall structure and its surface stucco layer.

In order to make the technical means of this creation and the effects it can achieve more complete and clear disclosure, the detailed description is as follows, please also refer to the disclosure diagram and figure number:

First of all, please refer to the first picture. The structure of the anti-cracking component of the corner wall of the door and window of this creation mainly includes:

The number of anti-cracking elements (1) is to make the number of anti-cracking elements (1) correspond to each other and arranged at intervals. The anti-cracking element (1) includes a longitudinally established first piece (11) and a transversely established first piece (11) The second piece (12), and the first piece (11) and the second piece (12) are vertically connected to form an L-shape, and the first piece (11) and the second piece A right-angle notch (13) is formed on one side of the part (12), and the first piece (11) and the second piece (12) are located in the notch (111) and (121) at their end edges (111) and (121). 13) There are two adjacent fixing holes (14) along the length of the end edges (111) and (121) on the sides, and one fixing hole (14) is located beside the gap (13) At the end corner of the side;

The number of fixing rods (2) is tied to the number of anti-cracking elements (1), the first piece part (11) and the second piece part (12) of the corresponding two fixing holes (14) are respectively penetrated and fixed to a fixed hole (14) Rod (2), the first piece (11) is defined with two imaginary longitudinal edges (151) passing longitudinally through the two fixed rods (2), and the second piece (12) is defined with transverse passing The two fixed rods (2) are the two imaginary horizontal edges (152), and make the two longitudinal edges (151) and the two horizontal edges (152) and the first piece (11) and the second piece (12) The end edges (111) and (121) are jointly enclosed to form a working area (16), and at least one positioning hole (17) is provided in the working area (16);

At least one positioning rod (3) is used to make the at least one positioning rod (3) penetrate through the corresponding positioning holes (17) of the anti-cracking elements (1), and the positioning rod (3) is an iron nail , So that the two opposite ends of the positioning rod (3) respectively form a sharp end (31) and a stop end (32); the main embodiment of this creation is in the working area (16) of the anti-cracking element (1) A number of positioning holes (17) and at least one fixing hole (14) are provided, so that a positioning rod (3) is inserted into the corresponding positioning hole (17) of the working area (16) of the number of anti-cracking elements (1). ), and make the rod wall of the positioning rod (3) abut against the hole wall of the positioning hole (17), and the corresponding fixing holes (14) of the anti-cracking elements (1) are penetrated and fixedly connected Fixing rod (2); please refer to the second picture together, the characteristics of this creation are:

The anti-cracking element (1) is formed with a number of grooves (18) spaced apart on its surface, and a convex rib (19) is formed between two adjacent grooves (18), and the plurality of grooves The groove (18) and several ribs (19) are arranged at an inclined angle and are parallel to each other, and the groove (18) is provided with several through holes (181) along its length, and the ribs (19) A number of reinforcement pits (191) are provided along its length. The shape of the reinforcement pits (191) can be one of rectangle, triangle, inline, circle, polygon, etc. (as shown in the second figure (A) , Figure (B), Figure (C), Figure (D) and Figure (E)] or their combination [as shown in Figure 3] to increase the grip performance and friction coefficient of the anti-cracking element (1) .

According to this, when using and implementing, please refer to the fourth figure together. This creation can be set on the outside of a corner of a door frame (41) or a window frame (42), and make the creation preventive The notch (13) of the split element (1) corresponds to the frame corner position of the door and window frames (41), (42), and one end of the fixing rod (2) is pressed against the template (5) and the The sharp end (31) of the positioning rod (3) is inserted into the template (5), and the construction personnel shall hold the hammer and other percussion tools to hit the stop end (32) of the positioning rod (3) to make The sharp end (31) of the positioning rod (3) is nailed and fixed in the template (5). Because this creation makes the rod wall of the positioning rod (3) and the hole wall of the positioning hole (17) abut and contact, Therefore, the positioning rod (3) inserted in the positioning hole (17) can be maintained, and the effect of falling off due to the vibration force of other positioning rods (3) being knocked and fixed can be maintained, so as to improve the convenience of the creation and installation.

Here, when several works are nailed to the template (5) and fixed to the corners of the door and window frames (41), (42), please refer to the fifth and sixth pictures together. As shown, following the longitudinal and transverse arrangement of several steel bars (6) along the door and window frames (41), (42), the longitudinal steel bars (61) and the transverse steel bars (62) can be protected against The outer sides (112) and (122) of the first sheet portion (11) and the second sheet portion (12) of the split element (1) are directly inserted into the first sheet portion (11) and the second sheet portion (12). ) Outside the side (112), (122) and the adjacent fixed rod (2) formed between the steel bar abutment area (21), and make the longitudinal steel bar (61) and the transverse steel bar (62) abut against the The fixing rods (2) adjacent to the outer sides (112) and (122) of the first piece (11) and the second piece (12) are to improve the convenience of the arrangement of the steel bars (6) and prevent the construction personnel from climbing The trouble of piercing the steel bars (6) from the top to the bottom of the climbing ladder frame, and then tied with iron wires at the intersection of the longitudinal steel bars (61) and the transverse steel bars (62) to fix the arrangement of the steel bars (6).

Then, the ready-mixed concrete is injected into the space formed by the formwork (5). At this time, the liquid concrete can pass through the anti-cracking element (1) with multiple through holes (181) smoothly in the anti-cracking element (1) flow between, so that the concrete can completely cover the surface of each anti-cracking element (1). When the concrete covers the surface of the anti-cracking element (1), the concrete system will fill and adhere to the surface of the anti-crack element (1). In the multiple reinforcement pits (191), please refer to the seventh figure together. When the concrete solidifies to form a wall structure (7), the wall structure (7) will relatively form a number of corresponding The convex column (71) embedded in the anti-crack element (1) in the reinforcement pit (191) greatly increases the area of the anti-crack element (1) and the wall structure and the stability of the combination, and It is difficult for the wall structure (7) to be relatively displaced or separated from the anti-cracking element (1) of the invention. In this way, when the reinforced concrete (reinforced concrete construction, referred to as RC) wall is subjected to external forces such as earthquake shaking or thermal expansion and contraction, and stresses are generated on the corner walls of the doors and window frames (41), (42), the The solid combination of the wall structure (7) at the corner of the door, window frame (41), (42) and this creation can further enhance the strength and crack resistance of the wall structure (7), and transfer this to The stress at the corners of the doors and window frames (41) and (42) is effectively slowed down and dispersed, so as to prevent the wall structure (7) and the surface paint layer at the corners of the doors and window frames (41) and (42) from generating turtles. Cracking or micro-cracking effect.

It can be seen from the above structure and implementation that this creative department has the following advantages:

The crack prevention component structure of the corner wall surface of the doors and windows of this creation is formed on the surface of the crack prevention element with several reinforcement pits. With the simple structure design, the grip performance and friction coefficient of the crack prevention element can be effectively increased, and the concrete solidifies into a wall After the structure, greatly increase the area of the anti-cracking element and the wall structure and the stability of the combination, so as to improve the structural strength of the reinforced concrete [RC] wall, and then improve the crack resistance performance, so that when subjected to external forces, due to Effectively slow down and disperse the action of external forces, and the effect of effectively preventing cracks or micro-cracks on the wall structure and the surface stucco layer at the corners of the door and window frame can be achieved.

In summary, the embodiment of this creation can indeed achieve the expected effect, and the specific structure disclosed by it has not been seen in similar products, nor has it been disclosed before the application. It is sincerely in full compliance with the provisions of the Patent Law. Requirement, Yan filed an application for a new type patent in accordance with the law, and urged for the review and grant of a patent, which would be more virtuous.

＜This creation＞

1: Anti-crack components

11: The first part

111: End edge

112: Outer side

12: The second part

121: End edge

122: Outer side

13: gap

14: Fixing hole

151: Longitudinal edge

152: horizontal edge

16: Operating interval

17: positioning hole

18: groove

181: Through Hole

19: convex rib

191: Reinforcement Pit

2: fixed rod

21: Reinforcing steel bar

3: positioning rod

31: Sharp end

32: Stop end

41: door frame

42: window frame

5: template

6: Rebar

61: Longitudinal steel bars

62: Transverse rebar

7: Wall structure

71: convex column

<Existing>

a: Crack prevention element on the wall of the window corner structure

a1: The first part

a2: The second part

a3: hole

a4: positioning rod

b: Fixed structure of anti-crack components on the corner wall of the window

b1: Anti-crack element

b2: positioning rod

b3: strap

b4: fixed rod

c: Longitudinal steel bars

d: Anti-crack component structure of door and window corner wall

d1: Anti-crack element

d11: The first part

d12: The second part

d13: gap

d14: fixed hole

d15: positioning hole

d2: fixed rod

d3: Operating interval

d4: positioning rod

d5: Rebar release interval

e: window frame

f: steel bar

g: Anti-cracking component structure of door and window corner wall

g1: anti-cracking element

g2: positioning hole

g3: positioning rod

h: Anti-crack component structure of door and window corner wall

h1: Anti-crack element

h2: fixed rod

h3: reinforcement unit

h31: Reinforcement piece

h32: shock-absorbing member

i: wall structure

j: window frame

k: ridge seam

m: Anti-crack component structure of door and window corner wall

m1: anti-cracking element

m2: fixed pole

m3: reinforcement unit

m31: Reinforcement piece

m32: shock-absorbing member

m33: ridge seam reinforcement part

The first picture: the three-dimensional exploded view of this creation.

The second picture: the front view of this creation (picture (A) shows the reinforcement pit is rectangular; picture (B) is the reinforcement pit is triangular; picture (C) is the reinforcement pit is in the shape of a line; picture (D) The pits for reinforcement are circular; Figure (E) is that the pits for reinforcement are hexagonal and other polygons].

Figure 3: Front view of another embodiment of this creation.

The fourth picture: the use state diagram installed in the door frame and window frame of this creation.

Figure 5: A three-dimensional view of the installation steel bars used in this creation.

Figure 6: The top view of the installation steel bars used in this creation.

Figure 7: The state diagram of this creation that is wrapped in the wall structure.

Figure 8: A three-dimensional view of the existing crack-preventing elements on the wall of the window corner structure.

Figure 9: A three-dimensional view of the existing fixed structure of the anti-cracking component on the corner wall of the window.

Figure 10: The state of the installation of steel bars for the fixing structure of the existing window corner wall crack prevention component.

Figure 11: A three-dimensional exploded view of the structure of the existing door and window corner wall anti-cracking component.

Figure 12: A three-dimensional view of the existing door and window corner wall surface anti-cracking component structure installing steel bars in use.

Figure 13: A three-dimensional view of the existing structure of the anti-cracking component on the corner wall of the door and window.

Figure 14: A three-dimensional view of another existing door and window corner wall crack prevention component structure.

Figure 15: A diagram of cracks on the corners of existing doors and window frames.

Figure 16: A three-dimensional view of the structure of another existing door and window corner wall anti-cracking component.

Figure 17: The installation state diagram of another existing door and window corner wall anti-crack component structure.

1: Anti-crack components

11: The first part

111: End edge

12: The second part

121: End edge

13: gap

14: Fixing hole

151: Longitudinal edge

152: horizontal edge

16: Operating interval

17: positioning hole

18: groove

181: Through Hole

19: convex rib

191: Reinforcement Pit

2: fixed rod

3: positioning rod

31: Sharp end

32: Stop end

Claims (5)

An anti-cracking component structure for the corner walls of doors and windows, which contains: The number of anti-cracking elements is to make the number of anti-cracking elements correspond to each other and are arranged at intervals. The anti-cracking element includes a first piece portion set up longitudinally and a second piece portion set up transversely, and the first piece Part and the second piece part are vertically connected as a whole, and a notch is formed on one side of the first piece part and the second piece part together, and the first piece part and the second piece part are respectively located at the edge of the end part. There are two adjacent fixing holes on the side of the gap; A plurality of fixing rods are connected to the two fixing holes corresponding to the first piece portion and the second piece portion of the plurality of anti-cracking elements. A fixing rod is respectively inserted and fixedly connected to the first piece portion. The two longitudinal edges of the fixed rod, and the second piece is defined with two transverse edges passing through the two fixed rods transversely, and the two longitudinal edges and the two transverse edges are connected to the ends of the first piece and the second piece. The edges of the parts are jointly enclosed to form a working area, and at least one positioning hole is provided in the working area; At least one positioning rod, so that the at least one positioning rod penetrates the corresponding positioning holes of the anti-cracking elements and is fixed on a template; It is characterized in that: the anti-cracking element is formed with a plurality of reinforcement pits on the surface thereof. According to claim 1, the corner wall surface crack prevention component structure of the door and window, wherein the shape of the reinforcement pit of the crack prevention element is one of a rectangle, a triangle, a straight shape, a circle, and a polygon, or a combination thereof. The door and window corner wall surface crack prevention component structure according to claim 1, wherein the crack prevention element is formed with a plurality of spaced grooves on its surface, and a convex rib is formed between two adjacent grooves, and The plurality of reinforcing pits are respectively formed on the plurality of protruding ribs. According to claim 3, the corner wall surface crack prevention component structure of the door and window, wherein the plurality of grooves and the plurality of protruding ribs of the crack prevention element are formed at an inclined angle and are set up parallel to each other. According to claim 3, the corner wall surface crack prevention component structure of the door and window, wherein the groove of the crack prevention element is provided with a plurality of through holes.

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