Safety protection device for pitched roof structure layer concrete

Abstract

The invention relates to the technical field of pitched roof construction, and discloses a safety protection device for pitched roof structural layer concrete, which comprises a template and a steel reinforcement framework, the steel reinforcement framework comprises transverse ribs and longitudinal ribs, a plurality of transverse ribs and longitudinal ribs are bound to form a latticed structure and laid on the upper side of the template, the surfaces of the transverse ribs are rotatably provided with steel reinforcement meshes, and the transverse ribs and the longitudinal ribs are arranged on the template. A supporting part is arranged on the surface of the reinforcing mesh, when the reinforcing mesh is overturned to form a certain included angle with the surface of the formwork, the supporting part is in contact with the surface of the formwork, and when the reinforcing mesh is overturned to be parallel to the formwork, the supporting part is separated from the surface of the formwork. The reinforcing meshes are arranged on the steel reinforcement framework, the reinforcing meshes are turned upwards to be opened, the pitched roof is divided into the multiple pouring areas, under the blocking effect of the reinforcing meshes, the flowing speed of concrete mortar is reduced, enough time is provided for trowelling concrete layers of all the pouring areas, and the effects of preventing sliding and improving the construction efficiency are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of slope roof construction, and in particular to a safety protection device for concrete of a slope roof structural layer. Background Art

[0002] Traditional sloping roofs have the advantages of reliable waterproofing, good heat insulation, and considerable durability. The slope of sloping roofs is generally large, and the construction is difficult. In order to solve the problem of slippage during the construction of sloping roofs, in the prior art, the patent document with the announcement number CN104481074B discloses a construction method for preventing the slippage of the structural layer of a large-slope sloping roof. Before implementation, the roof structural layer and the roof structural layer are constructed according to the design. The anti-slip construction method includes: using a drill bit to directly drill a hole on the surface layer of the sloping roof, and the depth directly reaches half the thickness of the structure; injecting rebar glue into the hole, inserting earthquake-resistant short-head steel bars, and the top surface of the steel bars is slightly lower than the surface layer; after completion, the surface is repaired and leveled with waterproof material, and maintained. The invention is simple to install, easy to learn and master, and fast to construct.

[0003] During the pouring of concrete for the sloping roof structure layer, the poured concrete mortar may also slip, causing a large amount of concrete mortar to flow to lower places, increasing the workload and burden of leveling, seriously affecting construction efficiency, and requiring an urgent solution. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of slippage of poured concrete mortar during pouring of concrete of a sloping roof structure layer in the prior art, and to propose a safety protection device for concrete of a sloping roof structure layer.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a safety protection device for concrete of a sloping roof structure layer, comprising a formwork and a steel frame, wherein the steel frame comprises transverse bars and longitudinal bars, and a plurality of transverse bars and longitudinal bars are tied into a grid structure and laid on the upper side of the formwork.

[0006] A steel mesh is rotatably installed on the surface of the transverse reinforcement, and a support portion is provided on the surface of the steel mesh. When the steel mesh is flipped to form a certain angle with the surface of the template, the support portion contacts the surface of the template and lifts the transverse reinforcement. When the steel mesh is flipped to be parallel to the template, the support portion is separated from the surface of the template, and the steel mesh is flipped upward and opened, dividing the sloping roof into multiple casting areas. Under the blocking effect of the steel mesh, the flow speed of the concrete mortar is reduced, providing convenience for the leveling work.

[0007] Preferably, the steel mesh includes connecting ribs and first reinforcing ribs, the connecting ribs are bent to form a spiral portion and a bent portion, the spiral portion can be sleeved on the surface of the transverse ribs, the upper end of the connecting ribs is a straight portion connected to the spiral portion, and the lower end of the connecting ribs is an extended portion connected to the bent portion.

[0008] During installation, a plurality of the connecting bars are sleeved on the surface of the transverse bars, a plurality of the first reinforcing bars are fixedly connected to the straight portion by bundling, and the steel mesh and the steel skeleton together constitute the internal skeleton structure of the slope roof structure layer.

[0009] Preferably, a plurality of groups of second reinforcing ribs are tied and installed on the upper side of the longitudinal ribs, each group of second reinforcing ribs includes a plurality of steel bars parallel to the first reinforcing ribs, and a casting window is reserved between two adjacent groups of second reinforcing ribs. When the steel mesh is flipped over and covered on the casting window, the first reinforcing ribs are in contact with the upper side of the longitudinal ribs, making the upper side of the steel skeleton smoother and facilitating the leveling operation.

[0010] Preferably, the supporting portion is composed of the bent portion and the extending portion. The bent portion supports the steel skeleton and can prevent the steel skeleton from collapsing and deviating due to pouring concrete. The bent portion also supports the transverse reinforcement and accurately controls the length and inclination angle of the extending portion, providing a basis for judging the pouring thickness.

[0011] Preferably, the sloping roof structure layer is divided into an upper pouring layer and a lower pouring layer. When the steel mesh is flipped to form a certain angle with the template surface, concrete mortar is poured at the pouring window to form the lower pouring layer, and concrete mortar is poured on the upper side of the lower pouring layer to form the upper pouring layer. When the steel mesh is flipped and covered at the pouring window, the first reinforcement rib, the second reinforcement rib and the support part are buried in the lower pouring layer. The first reinforcement rib, the second reinforcement rib and the support part increase the restraint force on the concrete, thereby making the concrete in the lower pouring layer more stable.

[0012] The present invention has the following beneficial effects:

[0013] 1. The present invention arranges a steel mesh on the steel skeleton, and the steel mesh is flipped upward to separate the sloping roof into multiple casting areas. Under the blocking effect of the steel mesh, the flow speed of the concrete mortar is reduced, and sufficient time is provided for leveling the concrete layer of each casting area, thereby achieving the effect of anti-slip and improving construction efficiency.

[0014] 2. The steel mesh proposed in the present invention can rotate around the transverse ribs. When the steel mesh is flipped upward and opened, the pouring window is opened, which facilitates the concrete to quickly fall into the lower side of the steel skeleton, thereby facilitating the pouring speed. In addition, the supporting portion of the steel mesh has a supporting effect on the steel skeleton, which can prevent the steel skeleton from collapsing and deviating due to the pouring of concrete, thereby improving the pouring quality. When the steel mesh is flipped downward to cover the pouring window, the upper side of the steel skeleton becomes smoother, which is convenient for leveling operations.

[0015] 3. The steel mesh proposed in the present invention, the connecting ribs in the steel mesh include a straight portion and an extension portion. During the pouring process, the connecting ribs can rotate around the transverse ribs, that is, the bottom end of the extension portion does not collide with the formwork, indicating that the distance between the transverse ribs and the formwork has not decreased. By referring to whether the connecting ribs can flip normally, it can be judged whether the thickness of the lower pouring layer meets the requirements; after the pouring is completed, the extension portion is buried in the lower pouring layer, and the extension portion increases the restraint force on the concrete, thereby making the concrete in the lower pouring layer more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the slope roof structure layer proposed by the present invention;

[0017] Figure 2 A schematic diagram of the three-dimensional structure of the steel reinforcement skeleton proposed by the present invention;

[0018] Figure 3 A schematic diagram of the side structure of the steel reinforcement skeleton proposed by the present invention;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the steel mesh proposed by the present invention;

[0020] Figure 5 A schematic diagram of the three-dimensional structure of the connecting rib proposed by the present invention;

[0021] Figure 6 for Figure 2 A schematic diagram of the structure enlargement at point A;

[0022] Figure 7 This is a schematic diagram of pouring concrete after the steel mesh is erected;

[0023] Figure 8 This is a schematic diagram of turning over and covering the steel mesh after pouring concrete mortar;

[0024] Fig. 9 Schematic diagram of the lifting transverse reinforcement in the bending section.

[0025] In the figure: 1 formwork, 2 steel skeleton, 3 transverse ribs, 4 longitudinal ribs, 5 connecting ribs, 6 first reinforcing ribs, 7 spiral portion, 8 bending portion, 9 straight portion, 10 extension portion, 11 second reinforcing ribs, 12 casting window, 13 upper casting layer, 14 lower casting layer, 15 steel mesh. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] Reference Figure 1-9 A safety protection device for concrete of a sloping roof structure layer comprises a formwork 1 and a steel frame 2, wherein the steel frame 2 comprises transverse ribs 3 and longitudinal ribs 4, a plurality of transverse ribs 3 and longitudinal ribs 4 are tied into a grid structure and laid on the upper side of the formwork 1, wherein the top end of the longitudinal ribs 4 is fixedly connected to a fixed structure at the ridge.

[0029] A steel mesh 15 is rotatably installed on the surface of the transverse reinforcement 3, and a support portion is provided on the surface of the steel mesh 15. When the steel mesh 15 is flipped to form a certain angle with the surface of the template 1, the support portion contacts the surface of the template 1 and lifts the transverse reinforcement 3. When the steel mesh 15 is flipped to be parallel to the template 1, the support portion is separated from the surface of the template 1.

[0030] Specifically, refer to Figure 4 The steel mesh 15 includes a connecting rib 5 and a first reinforcing rib 6. The connecting rib 5 is bent to form a spiral portion 7 and a bent portion 8. The spiral portion 7 can be sleeved on the surface of the transverse rib 3. The upper end of the connecting rib 5 is a straight portion 9 connected to the spiral portion 7, and the lower end of the connecting rib 5 is an extension portion 10 connected to the bent portion 8 (see Figure 5 ).

[0031] Among them, a plurality of connecting ribs 5 are sleeved on the surface of the transverse ribs 3, and a plurality of first reinforcing ribs 6 are fixedly connected to the straight portion 9 by bundling.

[0032] It should be noted that the above-mentioned support portion is composed of a bent portion 8 and an extended portion 10, that is, when the steel mesh 15 is turned over to form a certain angle with the surface of the template 1, the bent portion 8 of the support portion is in contact with the surface of the template 1, and when the steel mesh 15 is turned over to be parallel to the template 1, the extended portion 10 of the support portion is separated from the surface of the template 1 (here refers to the situation after pouring concrete on the lower side of the steel skeleton 2). Figure 3 As shown, before pouring concrete, the bottom end of the extension part 10 is pressed against the surface of the formwork 1 to play a role of early support.

[0033] In this embodiment, reference Figure 2, multiple groups of second reinforcing ribs 11 are tied and installed on the upper side of the longitudinal ribs 4, each group of second reinforcing ribs 11 includes multiple steel bars parallel to the first reinforcing ribs 6, and a casting window 12 is reserved between two adjacent groups of second reinforcing ribs 11. When the steel mesh 15 is turned over and covered on the casting window 12, the first reinforcing ribs 6 are in contact with the upper side of the longitudinal ribs 4 (see Figure 6 ), the steel mesh 15 and the steel skeleton 2 together constitute the internal skeleton structure of the slope roof structure layer.

[0034] In this embodiment, the slope roof structure layer is divided into an upper pouring layer 13 and a lower pouring layer 14;

[0035] During the pouring process, Figure 7 As shown, when the steel mesh 15 is turned over to form a certain angle with the surface of the template 1, concrete mortar is poured at the pouring window 12 to form a lower pouring layer 14, as shown in FIG. Figure 7 , Figure 8 As shown, concrete mortar is poured on the upper side of the lower pouring layer 14 to form an upper pouring layer 13, as shown in FIG. Figure 1 shown.

[0036] After the lower pouring layer 14 is poured, the steel mesh 15 is turned over and covered at the pouring window 12, and the first reinforcing rib 6, the second reinforcing rib 11 and the supporting part are buried in the lower pouring layer 14. Figure 8 Since the concrete in the lower pouring layer 14 provides an upward lifting force to the steel skeleton 2, the bottom end of the extension part 10 can remain separated from the surface of the formwork 1. After pouring is completed, the extension part 10 is buried in the lower pouring layer 14. The extension part 10 increases the restraining force on the concrete, making the concrete in the lower pouring layer 14 more stable.

[0037] The connecting bar 5 in the steel mesh 15 includes a straight portion 9 and an extension portion 10. During the casting process, Figure 8 As shown, the steel mesh 15 needs to be covered at the pouring window 12. During this process, the connecting rib 5 can rotate around the transverse rib 3, that is, the bottom end of the extension 10 does not collide with the template 1, indicating that the distance between the transverse rib 3 and the template 1 has not been reduced. Whether the thickness of the lower pouring layer 14 meets the requirements can be judged by referring to whether the connecting rib 5 can be turned over normally;

[0038] If the steel mesh 15 cannot cover the pouring window 12 normally, that is, the end of the extension part 10 collides with the template 1, which hinders the rotation of the connecting rib 5, it is necessary to measure the pouring thickness of the pouring area, and then use the method of raising the transverse rib 3 to remedy the situation. It should be noted that when the steel mesh 15 is rotated to different angles, its support part also rotates accordingly, and the distance between the transverse rib 3 and the template 1 can be adjusted. By rotating the steel mesh 15 and using the bending part 8 to lift the transverse rib 3, the pouring thickness can be remedied. Specifically, Fig. 9As shown, the original distance between the transverse reinforcement 3 and the template 1 is H. When the steel mesh 15 rotates counterclockwise by a certain angle, the distance between the transverse reinforcement 3 and the template 1 is L, wherein L>H.

[0039] Based on this, when making the connecting rib 5, the length and inclination angle of the extension part 10 can be uniformly controlled according to the thickness requirements of the lower pouring layer 14, and whether the connecting rib 5 can be flipped normally can be used to provide a basis for judging the pouring thickness. It should be supplemented that if the thickness of the upper pouring layer 13 and the lower pouring layer 14 do not meet the requirements, it means that the position of the steel skeleton 2 may be too high or too low, or even the steel skeleton 2 may be exposed, which affects the strength of the sloping roof structure layer.

[0040] The steel mesh 15 proposed in the present invention can rotate around the transverse ribs 3. When the steel mesh 15 is flipped upward and opened, the pouring window 12 is opened, which facilitates the concrete to quickly fall into the lower side of the steel skeleton 2, thereby facilitating the pouring speed. In addition, the supporting portion of the steel mesh 15 supports the steel skeleton 2, thereby preventing the steel skeleton 2 from collapsing and deviating due to the pouring of concrete, thereby improving the pouring quality. When the steel mesh 15 is flipped downward and covers the pouring window 12, the upper side of the steel skeleton 2 becomes relatively smooth, which is convenient for leveling operations.

[0041] The present invention arranges a steel mesh 15 on the steel skeleton 2, and the steel mesh 15 is flipped upward to divide the sloping roof into multiple casting areas. Under the blocking effect of the steel mesh 15, the flow speed of the concrete mortar is reduced, and sufficient time is provided for smoothing the concrete layer of each casting area, thereby achieving the effect of preventing slippage and improving construction efficiency.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety protection device for concrete of a pitched roof structure layer, comprising a formwork (1) and a steel frame (2), characterized in that: The steel bar skeleton (2) comprises transverse bars (3) and longitudinal bars (4), and a plurality of transverse bars (3) and longitudinal bars (4) are tied into a grid-like structure and laid on the upper side of the template (1); A steel mesh (15) is rotatably mounted on the surface of the transverse rib (3), and a support portion is provided on the surface of the steel mesh (15). When the steel mesh (15) is turned over to form a certain angle with the surface of the template (1), the support portion contacts the surface of the template (1) and lifts the transverse rib (3). When the steel mesh (15) is turned over to be parallel to the template (1), the support portion is separated from the surface of the template (1).

2. A safety protection device for concrete of a sloping roof structure layer according to claim 1, characterized in that: The steel mesh (15) comprises a connecting rib (5) and a first reinforcing rib (6); the connecting rib (5) is formed into a spiral portion (7) and a bent portion (8) by bending; the spiral portion (7) can be sleeved on the surface of the transverse rib (3); the upper end of the connecting rib (5) is a straight portion (9) connected to the spiral portion (7); and the lower end of the connecting rib (5) is an extension portion (10) connected to the bent portion (8).

3. A safety protection device for concrete of a sloping roof structure layer according to claim 2, characterized in that: A plurality of the connecting ribs (5) are sleeved on the surface of the transverse ribs (3), and a plurality of the first reinforcing ribs (6) are fixedly connected to the straight portion (9) by bundling.

4. A safety protection device for concrete of a sloping roof structure layer according to claim 3, characterized in that: A plurality of groups of second reinforcing ribs (11) are tied and installed on the upper side of the longitudinal ribs (4), each group of second reinforcing ribs (11) comprises a plurality of steel bars parallel to the first reinforcing ribs (6), a casting window (12) is reserved between two adjacent groups of second reinforcing ribs (11), and when the steel mesh (15) is turned over and covered on the casting window (12), the first reinforcing ribs (6) are in contact with the upper side of the longitudinal ribs (4).

5. A safety protection device for concrete of a sloping roof structure layer according to claim 4, characterized in that: The supporting portion is composed of the bending portion (8) and the extending portion (10).

6. A safety protection device for concrete of a sloping roof structure layer according to claim 5, characterized in that: The sloping roof structure layer is divided into an upper pouring layer (13) and a lower pouring layer (14). When the steel mesh (15) is turned over and covered on the pouring window (12), the first reinforcing rib (6), the second reinforcing rib (11) and the supporting part are buried in the lower pouring layer (14).

7. A safety protection device for concrete of a sloping roof structure layer according to claim 6, characterized in that: When the steel mesh (15) is turned over to form a certain angle with the surface of the template (1), concrete mortar is poured at the pouring window (12) to form the lower pouring layer (14), and concrete mortar is poured on the upper side of the lower pouring layer (14) to form the upper pouring layer (13).

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