Anti-delaminating wood formwork for building construction

Abstract

The utility model relates to the field of wood templates, in particular to an anti-delamination wood template for building construction, which comprises at least two thin templates, the thin templates are wooden rectangular plate body structures, adjacent side end faces of the adjacent thin templates are composite end faces, wrinkled flanges are uniformly distributed on the composite end faces, and a composite sheet is arranged between the composite end faces of the adjacent thin templates. A linear flexible body is arranged on the end face, close to the composite end face, of the composite sheet, after the adjacent thin templates are composited, a double-side clamping structure is formed for the composite sheet, the flexible body can form a winding combination structure with the wrinkled flange in the composite state, and the thin templates and the composite sheet are bonded through composite glue. The utility model is favorable for solving the problem of delamination caused by non-uniform glue content in subsequent construction and use due to simple and relatively smooth composite end surface structure of each thin template in some existing composite wood templates.

Description

Technical Field

[0001] The utility model relates to the field of wooden formwork, in particular to an anti-delamination wooden formwork for building construction. Background Art

[0002] The wooden formwork used in building construction is a temporary support structure, which is made according to the design requirements to form concrete structures and components in accordance with the specified positions and geometric dimensions, maintain their correct positions, and bear the self-weight of the building formwork and the external loads acting on it. The purpose of formwork engineering is to ensure the quality of concrete projects, construction safety, speed up the construction progress and reduce the project cost.

[0003] At present, such wooden formworks are building formworks in which multiple layers of thin wooden formworks are bonded together using industrial glue (phenolic glue, melamine glue or white glue). Since the planes of each layer of thin formworks are in contact with each other, only a thin layer of glue provides the bonding connection effect after lamination. Coupled with the relatively smooth surface of the thin formworks, the glue attached to the surface of the thin formworks is prone to flow during the process from glue spraying to flipping and laminating, resulting in uneven distribution of the glue content at the laminated end faces. The glue content in some local areas is excessive, while the adjacent areas are prone to insufficient glue content. The lamination effect in the areas with insufficient glue content is relatively poor. It is found in the actual processing that since the flipping directions of each thin formwork are the same after glue spraying, the phenomenon of less glue or no glue on the same side occurs in each layer of thin formworks. During the actual use of these wooden formwork products at the subsequent construction sites, the internal gluing structure is often easily damaged due to external collisions, resulting in delamination on the side with insufficient glue. Delamination will affect the bearing capacity of the wooden formwork. Therefore, this defect will greatly shorten the service life of the wooden formwork and increase the cost of building consumables. Summary of the Utility Model

[0004] The utility model provides an anti-delamination wooden formwork for building construction, which is beneficial to solving the problem of delamination caused by uneven glue content in some existing composite wooden formworks due to the simple and relatively smooth structure of the laminated end faces of each thin formwork during subsequent construction use.

[0005] The utility model is realized as follows:

[0006] An anti-delamination wooden formwork for building construction includes at least two thin formworks. The thin formworks are rectangular plate structures made of wood. The adjacent side end faces of adjacent thin formworks are laminated end faces. The laminated end faces are evenly distributed with corrugated flanges. A composite sheet is provided between the laminated end faces of adjacent thin formworks. A linear flexible body is provided on the end face of the composite sheet close to the laminated end face. After adjacent thin formworks are laminated, a double-sided clamping structure is formed for the composite sheet. The flexible body can form a winding and bonding structure with the corrugated flanges in the laminated state. The thin formworks and the composite sheet are bonded together by composite glue.

[0007] On the basis of the above technical solution, the composite sheet has a main body with a thin sheet structure, the inner end of the flexible body is fixedly connected to the main body, and the outer end of the flexible body is a free end.

[0008] On the basis of the above technical solution, the outer contours of the thin template and the main body of the composite sheet are both rectangular structures of the same size.

[0009] On the basis of the above technical solution, the main body of the composite sheet is a textile fabric, and the flexible body is a linear fluff structure.

[0010] On the basis of the above technical solution, the main body of the composite sheet is an elastic sheet structure, the flexible body and the main body are an integral structure, and the flexible body is an outward protruding burr structure.

[0011] On the basis of the above technical solution, a sunk groove is provided on the composite end surface of the thin template, the composite sheet is arranged in the sunk groove, and the corrugated flange is provided on the inner side wall of the sunk groove. In the composite state, both ends of the composite sheet are in an abutting and bonding relationship with different thin templates.

[0012] On the basis of the above technical solution, a plurality of sunk grooves are evenly distributed on the composite end surface.

[0013] On the basis of the above technical solution, a filling groove is provided at the bottom of the sunk groove.

[0014] On the basis of the above technical solution, a filler is provided in the filling groove, and the filler forms an outward protruding structure at the bottom of the sunk groove.

[0015] Compared with the prior art, the present utility model has at least the following advantages:

[0016] By providing a corrugated flange on the composite end surface of the thin template, when adjacent thin templates are adhesively combined, the composite sheet is used as an adhesive medium, and the flexible body on the composite sheet can form a winding and combining structure with the corrugated flange. Therefore, firstly, by enriching the structure of the composite end surface of the thin template, it can prevent the glue from flowing easily when the flap is turned over due to the overly smooth end surface after spraying glue. Additionally, by enriching the connection side contact structure, the composite structure is made more stable and reliable. It can not only effectively improve the adhesion of the glue after spraying, but also further ensure the uniformity of the glue distribution and the tightness of the bonding after combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Explosion structural schematic diagram of a non - peeling wood formwork for building construction in an embodiment;

[0019] Figure 2 Hierarchical structural schematic diagram of a non - peeling wood formwork for building construction in an embodiment;

[0020] Figure 3 Structural schematic diagram of a composite sheet in an embodiment;

[0021] Figure 4 Structural schematic diagram of a corrugated flange in an embodiment;

[0022] Figure 5 Structural schematic diagram of a sunk groove in another embodiment;

[0023] Figure 6 Structural schematic diagram of a filling groove in another embodiment.

[0024] Labels in the figure: 1, thin formwork; 2, composite sheet; 3, flexible body; 4, bead - shaped glue; 5, corrugated flange; 6, sunk groove; 7, filling groove; a, composite end face. Detailed implementation manners

[0025] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model.

[0026] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0027] It should be noted that when an element is referred to as "fixed on" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to an element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are only for the purpose of illustration and do not represent the only implementation.

[0028] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Embodiment 1: In combination with Figures 1 to 4 , this embodiment discloses a non - delaminating wooden formwork for building construction, which includes 3 mutually composite thin formwork 1, and composite sheets 2 are arranged between the adjacent thin formwork 1. Therefore, the wooden formwork in this embodiment is made by orderly stacking and compounding 3 thin formwork 1 and 2 composite sheets 2, and has better anti - delamination ability.

[0030] Specifically, the thin formwork 1 is a wooden rectangular plate structure, which is made by planing log materials. The adjacent side end faces of the adjacent thin formwork 1 are composite end faces a. Figure 1 In , the upper end face of the thin formwork 1 at the top is the outer surface, which is a relatively smooth end face, and the bottom end face of this thin formwork 1 is the composite end face a; the upper and lower end faces of the thin formwork 1 in the middle are both composite end faces a; the upper end face of the thin formwork 1 at the bottom is the composite end face a, and the lower end face is the outer surface, which is a relatively smooth end face.

[0031] In combination with Figure 4 shown, the composite end face a is evenly distributed with corrugated flanges 5, and the corrugated flanges 5 are formed by processing with a specific roller die by a rolling equipment. Specifically, the side wall of the corrugated flange 5 is provided with an irregular concave structure, and this concave structure can play a role of winding and clamping the flexible body 3 during subsequent compounding. In addition, the corrugated flanges 5 make the surface structure of the composite end face a a rough profile. When glue is sprayed on this end face, the glue will adhere to the composite end face a relatively stably and will not flow easily in a large area due to the turning - over action of the formwork. Therefore, it is beneficial to ensure the uniform glue content of the composite end face a.

[0032] A composite sheet 2 is arranged between the composite end faces a of the adjacent thin formwork 1. The outer contours of the main bodies of the thin formwork 1 and the composite sheet 2 are both rectangular structures of the same size. A linear flexible body 3 is provided on the end face of the composite sheet 2 close to the composite end face a. After the adjacent thin formwork 1 are compounded, a double - side clamping structure is formed for the composite sheet 2. The flexible body 3 can form a winding and bonding structure with the corrugated flanges 5 in the composite state, and the thin formwork 1 and the composite sheet 2 are bonded by composite glue.

[0033] In combination with Figure 2 andFigure 3 As shown, a large number of flexible bodies 3 are evenly distributed on the upper and lower end faces of the composite sheet 2. The composite sheet 2 has a main body with a thin sheet structure. The inner ends of the flexible bodies 3 are fixedly connected to the main body, and the outer ends of the flexible bodies 3 are free ends, which can flexibly swing and twist. When the upper and lower thin templates 1 clamp the composite sheet 2 in the middle position bidirectionally, the flexible bodies 3 on the upper and lower sides are squeezed and distorted. First, they are flattened and then closely attached to the composite end face a. With further squeezing and lateral repeated rubbing, a part of the flexible bodies 3 will be squeezed into the gaps of the irregular corrugated flanges 5, and are twisted and bent to form a winding and bonding structure with the side concave structures of the corrugated flanges, which makes its connection structure more stable and reliable.

[0034] In this embodiment, the main body of the composite sheet 2 is a textile fabric, specifically pp cotton, and the flexible body 3 is a linear fluff structure. In other embodiments, the main body of the composite sheet 2 is an elastic sheet structure made of elastic materials such as PU, the flexible body 3 and the main body are an integral structure, and the flexible body 3 is an outward protruding burr structure.

[0035] It should be noted that in combination with Figure 3 , due to the existence of the flexible body 3, after spraying glue on both ends of the composite sheet 2, the glue will form bead-shaped adhesives 4 on the flexible body 3. The bead-shaped adhesives 4 can be evenly dispersed in each area of the end face of the composite sheet 2 before lamination, and can deform and wet the flexible body 3 during lamination, so that the whole flexible body 3 has better bonding ability. This method can use relatively less glue spraying amount to achieve a relatively firm bonding effect and improve the material utilization rate.

[0036] Embodiment 2: On the basis of Embodiment 1, as shown in combination with Figure 5 , in this embodiment, the composite end face a of the thin template 1 is provided with sinking grooves 6, and a number of sinking grooves 6 are evenly distributed on the composite end face a. In this embodiment, there are 2 sinking grooves 6 evenly distributed on the composite end face a. The outer contour of the composite sheet 2 is adapted to the inner contour of the sinking grooves 6, and the composite sheet 2 is arranged in the sinking grooves 6, but the thickness of the composite sheet 2 is greater than the depth of the sinking grooves 6. In this embodiment, the composite end face a at the upper end of the bottom thin template 1 has sinking grooves 6, and the composite end face a at the bottom of the top thin template 1 does not have sinking grooves 6. In this case, the thickness of the composite sheet 2 is greater than the depth of one sinking groove 6. If the composite end faces a of the top and bottom thin templates 1 are both provided with corresponding sinking grooves 6, that is, the upper and lower sinking grooves 6 are opposite, then in this case the thickness of the composite sheet 2 is greater than the sum of the depths of the two sinking grooves 6. It should be noted that the corrugated flanges 5 are provided on the inner side walls of the sinking grooves 6. In the composite state, the two ends of the composite sheet 2 form a butt-joint bonding relationship with different thin templates 1, which ensures the bonding enhancement effect of the flexible body 3.

[0037] The function of the sinking groove 6 is to make full use of the space of the bonding surface, so that there is a more direct abutting relationship between adjacent thin templates 1. On the basis of ensuring a high-strength bonding effect in most areas of the composite sheet 2, the bearing capacity of the wooden template is improved. Another function of the sinking groove 6 is that after the composite sheet 2 is extruded, the excess glue on the composite sheet 2 can overflow into the sinking groove 6 and diffuse and equalize within the area of the sinking groove 6, without directly overflowing and wasting from the outside of the composite end face a.

[0038] Embodiment 3: On the basis of Embodiment 2, combined with Figure 6 , in this embodiment, a filling groove 7 is provided at the bottom of the sinking groove 6. The function of the filling groove 7 is to be able to hold more glue, so that more glue can be stored in the sinking groove 6 during the initial glue spraying. This is beneficial for glue supplement on the surface of the composite sheet 2 during the composite stage, and the excess glue on the composite sheet 2 can also overflow into the sinking groove 6 and accumulate, so that the glue content of the composite end face a is more uniform.

[0039] In the specific implementation process, fillers can also be provided in the filling groove 7, such as wood chips, etc. The fillers form a protruding structure at the bottom of the sinking groove 6. This method is beneficial for increasing the internal structure of the sinking groove 6. The added wood chips can be mixed with the glue to provide an additional bonding enhancement effect. Specifically, during the extrusion process, the wood chip material can fill the local gaps in the sinking groove 6, making the abutting between the composite sheet 2 and the thin template 1 more comprehensive and stable. In addition, the protruding structure can increase the pressure on the composite sheet 2, making the twisting deformation of the flexible body 3 more diversified, which is beneficial for improving the bonding effect.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An anti-delamination wooden formwork for building construction, characterized in that: The invention comprises at least two thin templates (1), wherein the thin templates (1) are rectangular wooden plate structures, the adjacent side end faces of adjacent thin templates (1) are composite end faces (a), the composite end faces (a) are evenly distributed with folded flanges (5), a composite sheet (2) is arranged between the composite end faces (a) of adjacent thin templates (1), a linear flexible body (3) is arranged on the end face of the composite sheet (2) close to the composite end face (a), and after the adjacent thin templates (1) are composited, a double-sided clamping structure is formed for the composite sheet (2), and the flexible body (3) can form a winding and combining structure with the folded flange (5) in the composite state, and the thin template (1) and the composite sheet (2) are bonded by composite glue.

2. The anti-delamination wooden formwork for construction according to claim 1, characterized in that: The composite sheet (2) has a main body with a thin sheet structure, the inner end of the flexible body (3) is connected and fixed to the main body, and the outer end of the flexible body (3) is a free end.

3. The anti-delamination wooden formwork for construction according to claim 2, characterized in that: The outer contours of the thin template (1) and the main body of the composite sheet (2) are both rectangular structures of the same size.

4. The anti-delamination wooden formwork for construction according to claim 2, characterized in that: The main body of the composite sheet (2) is a textile fabric, and the flexible body (3) is a linear fluff structure.

5. The anti-delamination wooden formwork for construction according to claim 2, characterized in that: The main body of the composite sheet (2) is an elastic sheet structure, the flexible body (3) and the main body are an integrated structure, and the flexible body (3) is an outwardly protruding burr structure.

6. The anti-delamination wooden formwork for construction according to claim 1, characterized in that: The composite end surface (a) of the thin template (1) is provided with a recessed groove (6), the composite sheet (2) is arranged in the recessed groove (6), and the inner wall of the recessed groove (6) is provided with the pleated flange (5). In the composite state, the two ends of the composite sheet (2) form a butting and bonding relationship with different thin templates (1).

7. The anti-delamination wooden formwork for construction according to claim 6, characterized in that: A plurality of sink grooves (6) are evenly distributed on the composite end surface (a).

8. The anti-delamination wooden formwork for construction according to claim 7, characterized in that: A filling tank (7) is provided at the bottom of the sink (6).

9. The anti-delamination wooden formwork for construction according to claim 8, characterized in that: A filler is arranged in the filling groove (7), and the filler forms an outward protruding structure at the bottom of the sink groove (6).

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