Door and window opening lintel construction structure

Abstract

The utility model relates to the field of building construction, and discloses a door and window opening lintel construction structure which comprises two angle beads, side building blocks and a bottom formwork. The two angle beads are symmetrically arranged at the top of the hole in parallel, and the two ends of each angle bead extend into the wall by a set depth; the bottom formwork is fixed to the bottoms of the angle shafts through screws and serves as a bottom formwork for cast-in-place. A plurality of side building blocks are arranged on the two angle beads through quick-drying mortar and serve as side molds for cast-in-place; a pouring cavity is defined by the wall bodies at the two ends of the angle bead, the side building blocks and the bottom die, and concrete is poured into the pouring cavity to form the lintel. The pouring cavity is defined by the wall body, the side building blocks and the bottom die, after the quick-drying mortar is initially set, concrete can be poured into the pouring cavity to form the lintel, the wall body can be directly built after pouring is completed, waiting for concrete solidification is not needed, the construction progress is not affected, only the bottom die plate needs to be built, and compared with a traditional die erecting procedure, the construction efficiency is greatly improved. The construction efficiency is greatly improved, and the labor intensity is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building construction, especially to a door and window hole lintel construction structure. BACKGROUND

[0002] When a door and window hole is formed on a wall and the hole is greater than 300mm, in order to support various loads transmitted by the upper part of the hole and transmit these loads to the walls on both sides of the door and window hole, a beam is usually arranged on the door and window hole, which is called a lintel. There are two types of lintels, cast-in-place and prefabricated. The cast-in-place lintel needs to be supported and molded, and the subsequent wall construction work cannot be carried out before the lintel solidifies, which affects the construction progress. Although the prefabricated lintel does not affect the construction progress, it needs to be transported to the construction site and erected at the lintel, which has high labor intensity and risks to the workers.

[0003] A door and window lintel prefabricated by a U-shaped building block is disclosed in Chinese Patent Application No. CN201920257233.8, filed on February 28, 2019, which can realize masonry without form removal and does not affect the construction progress of the masonry. However, the applicant believes that this lintel construction structure has the following defects:

[0004] 1. The U-shaped building block needs to be prefabricated, which has the same defects as the existing prefabricated lintel, and the manufacturing difficulty of the U-shaped building block is greater;

[0005] 2. It also needs to be cast-in-place, which is not as good as directly using a prefabricated lintel to reduce the cast-in-place process;

[0006] Therefore, the present application provides a cast-in-place door and window hole lintel construction structure that is simple to support and does not affect the construction progress of the masonry to solve the above problems. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims to solve the technical problems existing in the prior art. To this end, the utility model provides a cast-in-place door and window hole lintel construction structure that is simple to support and does not affect the construction progress of the masonry.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] A door and window hole lintel construction structure is provided, which includes two angle bars, side building blocks and a bottom formwork. The two angle bars are parallel and symmetrically arranged at the top of the hole, with both ends extending into the wall to a certain depth. The bottom formwork is fixed to the bottom of the angle bar by screws and serves as a bottom form for cast-in-place. Multiple side building blocks are arranged on the two angle bars by cement mortar and serve as side forms for cast-in-place. The wall on both ends of the angle bar, the side building blocks and the bottom form enclose a pouring cavity, and the pouring cavity is filled with concrete to form a lintel.

[0010] In some alternative embodiments, the vertical plates of the corner strip are arranged towards the pouring cavity, and the width of the bottom plate of the corner strip is not greater than the thickness of the side block.

[0011] In some alternative embodiments, a steel wire mesh is further arranged between the vertical plates of the two corner strips.

[0012] In some alternative embodiments, a main reinforcement is further arranged on the steel mesh.

[0013] In some alternative embodiments, the corner strip is made of metal material.

[0014] In some alternative embodiments, the length of the bottom mold plate is equal to the width of the hole, and the width of the bottom mold plate is equal to the thickness of the hole.

[0015] In some alternative embodiments, the bottom mold plate is further provided with a limiting side plate on both sides for limiting the side block.

[0016] In some alternative embodiments, the outer side of the pouring cavity is further provided with a finishing layer of quick-drying mortar for preventing the pouring cavity from leaking mortar.

[0017] In some alternative embodiments, after the concrete reaches the set strength, the bottom mold plate is removed, and a cement mortar finishing layer is applied at the bottom of the lintel.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] The pouring cavity is enclosed by the wall body, the side block and the bottom mold, and after the initial setting of the quick-drying mortar, the pouring cavity can be poured with concrete to form a lintel. After pouring is completed, the wall body can be directly built, without waiting for the concrete to solidify, which does not affect the construction progress. The erection of the mold only needs to erect the bottom mold plate, which greatly improves the construction efficiency and reduces the labor intensity compared with the traditional formwork process. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings, wherein:

[0021] Figure 1 is a forming structure diagram of the pouring cavity of the door and window hole lintel construction structure provided by the present application;

[0022] Figure 2 is a sectional view of one embodiment of the door and window hole lintel construction structure provided by the present application;

[0023] Figure 3 is another embodiment of the sectional view of the door and window hole lintel construction structure provided by the utility model;

[0024] Figure 4 is the construction state diagram after pouring of the door and window hole lintel construction structure provided by the utility model;

[0025] Figure 5 is the sectional view after the lintel is formed.

[0026] In the drawings, the component list represented by each reference numeral is as follows:

[0027] 1-corner strip, 2-side block, 3-bottom formwork, 3.1-limiting side plate, 4-fast dry mortar, 5-main reinforcement, 6-concrete, 7-steel mesh, 8-cement mortar surface layer, 100-pouring cavity. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are merely exemplary and do not limit the utility model.

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] In the description of the utility model, it should be explained that the orientations or position relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are the orientations or position relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model; the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0031] In addition, the technical solutions among various embodiments can be combined with each other, but the combination of the technical solutions should be based on the fact that the combination can be realized by the person skilled in the art, and when the combination of the technical solutions cannot be realized or contradicts each other, it should be considered that the combination of the technical solutions does not exist and is not within the protection scope of the present application.

[0032] Embodiment one

[0033] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The present embodiment provides a door and window opening lintel construction structure, comprising two angle bars 1, side blocks 2 and a bottom formwork 3, wherein:

[0034] The two angle bars 1 are arranged in parallel and symmetrically at the top of the opening, and the two ends thereof extend into the wall body by a certain depth, specifically, if the door opening width is less than or equal to 2 meters, the extension length is 250 mm, and if the door opening width is greater than 2 meters, the extension length should be lengthened to cope with larger load. Preferably, the angle bar 1 of the present embodiment is made of metal material, has good rigidity, and specifically can be made of commonly used angle steel or light aluminum alloy material. In specific arrangement, the vertical plate of the angle bar 1 of the present embodiment is arranged inwardly, and the width of the bottom plate of the angle bar 1 is not greater than the thickness of the side block 2.

[0035] The bottom formwork 3 is fixed to the bottom of the angle bar 1 by screws as a bottom form for cast-in-place; the bottom formwork can be fixed with the angle bar in advance during specific installation, that is, the two angle bars are installed on the bottom formwork in advance. Preferably, the length of the bottom formwork of the present embodiment is equal to the width of the opening, and the width thereof is equal to the thickness of the opening, which enables the angle bar to be quickly positioned and installed.

[0036] The plurality of side blocks 2 are arranged on the two angle bars 1 by fast-drying mortar 4 as side forms for cast-in-place, and the fast-drying mortar can be initially solidified within a few minutes, so that the adhesion between the side blocks and the angle bars can be achieved.

[0037] The wall body at both ends of the angle bar, the side block 2 and the bottom form 3 of the present embodiment enclose a pouring cavity 100, and preferably the pouring cavity is treated by fast-drying mortar for caulking, and after the fast-drying mortar is at least initially solidified, the main reinforcement 5 is placed in the pouring cavity 100, and then the concrete 6 is poured to form a lintel. After pouring is completed, the wall body can be directly built, without waiting for the concrete to solidify, so that the construction progress is not affected, and only the bottom formwork needs to be erected, which greatly improves the construction efficiency and reduces the labor intensity compared with the traditional formwork erection process.

[0038] Preferably, the pouring cavity 100 of the present embodiment is further provided with a finishing layer (not shown in the figure) on the outside by using fast-drying mortar, which can further improve the sealing property of the pouring cavity and prevent the leakage of mortar during pouring.

[0039] In practice, the corner strips are pre-fixed to the bottom formwork. Then, the corner strips are overlapped onto the wall, aligning the bottom formwork with the opening (the corner strips are bonded to the wall with quick-drying mortar). Side blocks are then laid on the corner strips using quick-drying mortar. After the side blocks are laid, quick-drying mortar is used to fill the gaps inside the pouring cavity, and quick-drying mortar is applied to the outside of the pouring cavity to form a finishing layer. Before the quick-drying mortar hardens, the remaining part of the wall is built. After the quick-drying mortar hardens, the main reinforcement is placed into the pouring cavity, and then concrete is poured into the cavity. Finally, the wall above the lintel is directly constructed, as shown in the attached diagram. Figure 4 As shown, there is no need to wait for the concrete in the pouring cavity to solidify. After the concrete of the lintel has solidified, remove the bottom formwork and apply a cement mortar surface layer 8 to the bottom of the lintel, as shown in the attached diagram. Figure 5 As shown.

[0040] Example 2

[0041] Based on Embodiment 1, this embodiment further includes a wire mesh 7 between the vertical plates of the two corner strips 1, with the main reinforcement 5 fixed to the wire mesh 7. This design increases the load-bearing capacity of the lintel and prevents the main reinforcement from sinking to the bottom of the beam.

[0042] Example 3

[0043] Based on Embodiment 1 or Embodiment 2, this embodiment further optimizes the design of the bottom template, as shown in the attached figure. Figure 3 As shown, in this embodiment, limiting side plates 3.1 are also provided on both sides of the bottom template 3 to limit the side blocks 2. The limiting side plates and the vertical plates of the corner strips in this embodiment can form limiting grooves, which can limit the side blocks and prevent them from loosening and falling off due to the pressure of concrete during pouring; at the same time, the setting of the limiting side plates can also reduce the amount of quick-drying mortar plastering layer on the outside of the pouring cavity.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A construction structure for lintel of a door and window opening, characterized by: The utility model relates to a kind of overpassing beam pouring cavity structure, including two angle bars, side block and bottom template, wherein: Two described angle bars are parallel and symmetrically arranged at the top of hole, and two ends are arranged into wall body and set depth; Described bottom template is fixed in the bottom of angle bar by screw, as the bottom mode for cast-in-place; Multiple described side block is arranged on two angle bars by quick-drying mortar, as the side mode for cast-in-place; The pouring cavity is enclosed by the wall body of the two ends of angle bar, side block and bottom template, and the pouring cavity is poured with concrete to form overpassing beam.

2. A lintel construction according to claim 1, characterised in that: The vertical plate of the angle bar is arranged towards the pouring cavity, and the width of the bottom plate of the angle bar is not greater than the thickness of the side block.

3. A lintel construction according to claim 2, wherein: Steel mesh is further arranged between the vertical plates of the two angle bars.

4. A lintel construction according to claim 3, wherein: Main reinforcement is further fixed on the steel mesh.

5. The construction structure for lintel of a door or window opening according to claim 1, characterized in that: The angle bar is made of metal material.

6. The construction structure for lintel of a door or window opening according to claim 1, characterized in that: The length of the bottom template is equal to the width of the hole, and the width of the bottom template is equal to the thickness of the hole.

7. A lintel construction according to claim 6, characterised in that: Limiting side plates are further arranged on both sides of the bottom template for limiting the side block.

8. The construction structure for lintel of a door or window opening according to claim 1, characterized in that: Quick-drying mortar is further arranged on the outside of the pouring cavity to form a finishing layer for preventing leakage of the pouring cavity.

9. A lintel construction according to any one of claims 1 to 8, wherein: After the concrete reaches the specified strength, the bottom template is removed, and a cement mortar finishing layer is applied on the bottom of the overpassing beam.

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