Fixing pull rod for pouring formwork at joint of outer wall and floor slab

Abstract

The utility model relates to the technical field of outer wall construction, in particular to an outer wall and floor joint pouring formwork fixing pull rod which comprises a first pull rod, a positioning clamping plate is fixed to one end of the first pull rod, and the other end of the first pull rod is connected with a second pull rod through a connecting sleeve. The positioning clamping plate is of an inverted-L-shaped structure, a horizontal plate of the positioning clamping plate is fixed to the lower side of the end of the first pull rod, and a vertical plate is located on the side close to the connecting sleeve. A connecting hole is formed in a horizontal plate of the positioning clamping plate, the top end of the inner formwork is clamped to the right-angle position of the inner side of the positioning clamping plate and tightly attached to a vertical plate, and the bottom plate is tightly attached to the lower side of the horizontal plate and fixed through matching of a connecting bolt and a connecting nut with the connecting hole of the horizontal plate. The inner formwork and the bottom plate can be positioned through the positioning clamping plate, the outer formwork can be positioned through the second pull rod and the connecting sleeve, then the distance between the outer formwork and the inner formwork is guaranteed, and the size of the section of the outer wall is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of exterior wall construction, in particular to a fixing tie rod for pouring a template at the junction of an exterior wall and a floor slab. Background Art

[0002] During the pouring of concrete, concrete will squeeze the casting formwork and generate great lateral pressure on the casting formwork. Therefore, how to fix the formwork and prevent it from shifting during construction usually becomes a key technical issue to be controlled during construction. When constructing the junction of the exterior wall and the floor slab, how to fix the exterior wall casting formwork and the floor slab bottom formwork is usually a difficulty in construction. The junction of the exterior wall casting formwork and the floor slab casting bottom formwork is a concave angle. The formwork at the concave angle is not only subjected to the lateral pressure of the wall casting concrete, but also to the longitudinal pressure of the floor slab casting concrete. If the fixation is not firm, the inner casting formwork of the exterior wall and the floor slab casting bottom formwork will shift, which is not conducive to ensuring the pouring quality of the concrete and seriously affects the flatness of the exterior wall and the floor slab.

[0003] The existing publication number CN206554512U is a fastening fixture for connecting an exterior wall formwork and a floor formwork, comprising a connecting block, an L-shaped tie rod and a lower bolt arranged on the upper side of the floor bottom formwork, the upper side of the connecting block is connected to the vertical part of the tie rod, the horizontal part of the tie rod is used to tie the formworks on both sides of the exterior wall, and the lower side of the connecting block is used to connect the lower bolts, and the floor bottom formwork is inverted and fixed by the joint action of the connecting block and the lower bolts; the existing technology has the following problems in the application process: 1. It does not play a fixing role on the casting formwork on the inner side of the exterior wall; 2. The lower part of the tie rod is cast in the floor slab, and the tie rod cannot be taken out, and the tie rod exposed on the outer side of the exterior wall needs to be cut and plastered; after the lower bolts are removed, the holes left by the lower bolts need to be filled with cement slurry from the lower side of the floor slab; the workload is large, the construction efficiency is slow, and the lower part of the floor slab close to the exterior wall is originally a bearing point, and the holes left by the lower bolts are not conducive to ensuring the quality of floor slab casting. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a casting formwork fixing rod which is convenient for fixing the casting formwork at the junction of the exterior wall formwork and the floor slab, and improves the casting quality of the exterior wall and the floor slab.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A fixing rod for casting formwork at the junction of an exterior wall and a floor slab, wherein the exterior wall casting formwork includes an exterior formwork and an interior formwork, and the floor slab casting formwork is a bottom plate, including a first rod, one end of which is fixed with a positioning clamping plate, and the other end of which is connected to a second rod via a connecting sleeve; the positioning clamping plate is an inverted L-shaped structure, the horizontal plate of the positioning clamping plate is fixed to the lower side of the end of the first rod, and the vertical plate is located on the side close to the connecting sleeve; a connecting hole is provided on the horizontal plate of the positioning clamping plate, the top end of the inner formwork is clamped at the right angle inside the positioning clamping plate and is arranged close to the vertical plate, and the bottom plate is close to the lower side of the horizontal plate and is fixed by connecting bolts and connecting nuts in conjunction with the connecting holes of the horizontal plate.

[0007] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0008] The inner formwork and the base plate can be positioned by the positioning clamp, and the outer formwork can be positioned by the second tie rod and the connecting sleeve, thereby ensuring the spacing between the outer formwork and the inner formwork and the cross-sectional size of the outer wall; after pouring and forming, the second tie rod is taken out, the connecting nut is unscrewed, and the outer formwork, the base plate and the inner formwork are removed. The second tie rod, the connecting nut, the outer formwork, the base plate and the inner formwork can be used in rotation; plastering is done from the outside of the outer wall, and the connecting sleeve is sealed. There are no holes in the floor slab that need to be sealed, and the later construction is simple and convenient, which greatly improves the construction quality and efficiency of the outer wall and floor slab.

[0009] As a preferred embodiment, a further technical solution of the utility model is:

[0010] Preferably, a water-stop rubber pad is provided on the second pull rod, and the water-stop rubber pad is used to seal the tie hole on the outer template for passing the second pull rod from the outside of the outer template; it has the function of stopping water and plugging leakage.

[0011] Preferably, the water-stop rubber pad has a truncated cone structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a fixing tie rod for a casting template in an embodiment of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the construction of the fixing rod of the casting template in the embodiment of the utility model.

[0014] Explanation of the reference numerals: 1. first pull rod; 2. positioning clamp; 201. connecting hole; 3. connecting sleeve; 4. second pull rod; 5. water-stop rubber pad; 6. bottom plate; 7. inner template; 8. outer template. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with specific embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0016] like Figure 1 , Figure 2 As shown, this embodiment provides a fixing rod for casting formwork at the junction of an exterior wall and a floor slab, wherein the exterior wall casting formwork includes an outer formwork 8 and an inner formwork 7, and the floor slab casting formwork is a bottom plate 6; it includes a first tie rod 1, one end of the first tie rod 1 is fixed with a positioning card plate 2, and the other end is connected to a second tie rod 4 through a connecting sleeve 3; the positioning card plate 2 is an inverted L-shaped structure, the horizontal plate of the positioning card plate 2 is fixed to the lower side of the end of the first tie rod 1, and the horizontal plate extends outward from the end of the first tie rod 1; the vertical plate of the positioning card plate 2 is located on the side close to the connecting sleeve 3, that is, the inner right angle of the positioning card plate 2 is opposite to the inner angle between the floor slab and the exterior wall; a connecting hole 201 is provided on the part of the horizontal plate of the positioning card plate 2 located on the outer side of the first tie rod 1, and two connecting holes 201 are provided in this embodiment for connecting the bottom plate 6; the top end of the inner formwork 7 is clamped at the inner right angle of the positioning card plate 2 and is arranged close to the vertical plate, and the bottom plate 6 is close to the lower side of the horizontal plate and is passed through the connecting hole 201 by connecting bolts and then fixed with connecting nuts.

[0017] Preferably, a waterproof rubber pad 5 is provided on the second pull rod 4. The waterproof rubber pad 5 has a truncated cone structure, and the bottom surface of the waterproof rubber pad 5 is located on one side of the first pull rod 1. The bottom area of ​​the truncated cone is large, which can increase the sealing area and improve the anti-seepage and anti-leakage effect.

[0018] When in use, the horizontal plate of the positioning clamp 2 is overlapped at the inner corner formed by the base plate 6 and the inner template 7, and then the base plate 6 and the positioning clamp 2 are locked with connecting bolts and connecting nuts, and then the outer template 8 is set close to the connecting sleeve 3. A tie hole is set on the outer template 8 corresponding to the connecting sleeve 3. The end of the second tie rod 4 passes through the tie hole and is connected to the connecting sleeve 3. The water-stop rubber pad 5 abuts against the outside of the tie hole to prevent leakage when pouring concrete. At the same time, it has an anti-rust effect on the second tie rod 4 on the other side of the water-stop rubber pad 5.

[0019] After casting, remove the second tie rod 4 and the connecting nut, remove the outer formwork 8, the bottom plate 6 and the inner formwork 7, and the second tie rod 4, the connecting nut, the outer formwork 8, the bottom plate 6 and the inner formwork 7 can be used in a cyclic manner; plaster the outer wall and seal the connecting sleeve 3. When there is no high requirement for flatness, the connecting bolts exposed at the bottom of the floor slab can be left untreated. When the flatness requirement for the lower side of the floor slab is high, the part of the connecting bolts exposed at the lower side of the floor slab can be cut; there are no holes in the floor slab that need to be blocked, which improves the construction quality and efficiency of the exterior wall and floor slab.

[0020] The above description is only the preferred embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present invention specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A fixing rod for casting formwork at the junction of an exterior wall and a floor slab, wherein: The external wall casting template comprises an external template (8) and an internal template (7), and the floor slab casting template is a bottom plate (6), characterized in that it comprises a first tie rod (1), one end of which is fixed with a positioning card (2), and the other end of which is connected with a second tie rod (4) via a connecting sleeve (3); The positioning card plate (2) is an inverted L-shaped structure, the horizontal plate of the positioning card plate (2) is fixed on the lower side of the end of the first pull rod (1), and the vertical plate is located on the side close to the connecting sleeve (3); a connecting hole (201) is provided on the horizontal plate of the positioning card plate (2), the top end of the inner template (7) is clamped at the right angle inside the positioning card plate (2) and is arranged close to the vertical plate, and the bottom plate (6) is close to the lower side of the horizontal plate and is fixed by connecting bolts and connecting nuts in conjunction with the connecting hole (201) of the horizontal plate.

2. The fixing tie rod for casting formwork at the junction of the exterior wall and the floor slab according to claim 1 is characterized by: A water-stop rubber pad (5) is provided on the second tie rod (4), and the water-stop rubber pad (5) is used to seal the tie hole on the outer template (8) for passing the second tie rod (4) from the outside of the outer template (8).

3. The fixing tie rod for casting formwork at the junction of the exterior wall and the floor slab according to claim 2 is characterized by: The water-stopping rubber pad (5) is in a truncated cone structure.

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