A device for the turnover use of reserved holes in cast-in-place structures

Abstract

The utility model provides a kind of turnover use reserved hole device in cast-in-place structure, including reserved mould body, reserved slot and limit plate, reserved mould body is enclosed by four side plates, and side plate is inclined to set, and the cavity of upper and lower permeability is formed in reserved mould body, and the lower part of cavity is equipped with close structure, reserved slot is set on opposite two side plates, reserved slot penetrates the lower surface of reserved mould body, reserved slot is used to pass through for reinforcing bar, limit plate is formed by two slab splicing, limit plate is all set on the side plate with reserved slot, and adjacent limit plate is all located at same height, and the horizontal position of slab on side plate is adjustable, the bottom of limit plate contacts with reinforcing bar, and two slabs can be slid away to form gap to pass through for reinforcing bar, and the turnover use reserved hole device in cast-in-place structure can be installed on pouring reinforcing bar quickly when floor concrete is poured, without cutting reinforcing bar, and reserved mould body is extracted quickly after pouring is completed, so it is also convenient for turnover.

Description

Technical Field

[0001] This utility model relates to building engineering, and in particular to a device for reusable reserved holes in cast-in-place structures. Background Technology

[0002] In the construction of cast-in-place concrete structures in building engineering, reserved openings are often set up, including surveying and setting-out holes, material transfer openings, and temporary construction openings, etc.

[0003] Current practices typically involve using prefabricated wooden templates to embed holes. This process requires cutting the reinforcing steel bars in the hole area, followed by a secondary roughening and rebar installation operation during the later sealing process. However, in actual use, cutting the reinforcing steel bars is not only time-consuming and labor-intensive, but also makes it difficult to guarantee the quality of rebar anchoring during the sealing process. This not only increases the number of construction steps but also seriously weakens the overall structural integrity, creating a potential source of quality risk. Utility Model Content

[0004] To address the problem of ensuring the quality of rebar anchoring during the sealing of openings in the prior art, this utility model proposes a reusable pre-reserved hole device for cast-in-place structures.

[0005] The technical solution of this utility model is: it includes a reserved mold body, a reserved groove, and a limiting plate; The pre-formed mold is formed by four side plates, which are inclined. The interior of the pre-formed mold forms a cavity that is open from top to bottom, and the lower part of the cavity is provided with a closing structure. The reserved groove is opened on the opposite side plates, and the reserved groove penetrates the lower surface of the reserved formwork. The reserved groove is used for the steel bars to pass through. The limiting plate is formed by splicing two sliding plates. The limiting plates are all set on the side plate with reserved slots, and the adjacent limiting plates are all at the same height. The lateral position of the sliding plate on the side plate is adjustable. The bottom of the limiting plate is in contact with the reinforcing steel. The two sliding plates can slide back to back to create a gap for the steel bars to pass through; The skateboard is equipped with a locking mechanism, which is used to connect two horizontally adjacent skateboards; When the two slide plates are connected and sealed at the reserved slot, gaps are formed at the upper and lower ends of the reserved slot for the reinforcing bars to pass through.

[0006] Preferably, the side plate with the reserved groove has two strip-shaped sliding openings, which are located on both sides of the reserved groove on the same side plate. Each strip-shaped sliding opening is guided and slidably connected to a connecting rod, which extends perpendicular to the extension direction of the strip-shaped sliding opening. One end of the connecting rod is fixedly connected to the outer surface of the slide plate, and the slide plate is located in the reserved mold body. The other end of the connecting rod is fixedly connected to a locking component, which is located outside the reserved mold body.

[0007] Preferably, the locking component includes a locking frame, which includes a horizontal plate and a vertical plate. The horizontal plate extends along the direction of the strip-shaped sliding opening, and the vertical plate is fixedly connected to the near ends of two adjacent horizontal plates, and the vertical plate is perpendicular to the horizontal plate. Each upright plate has a socket for bolts to pass through.

[0008] Preferably, each of the side plates has a lifting ring fixedly connected to its upper surface.

[0009] Preferably, when the two sliding plates slide and splice together to form a limiting plate, the connecting rod abuts against the wall surface of the strip-shaped sliding opening near the reserved groove, and the opposite ends of the two sliding plates extend in a direction away from the reserved groove, so that the sliding plates can block the strip-shaped sliding opening.

[0010] Preferably, the height of the limiting plate is adapted to the spacing between two adjacent vertical reinforcing bars, so that the reserved formwork can be detachably connected to the reinforcing cage structure formed by multiple reinforcing bars.

[0011] The advantages of this utility model are: the reserved formwork can be quickly installed on the cast steel bars during the pouring of floor slab concrete without cutting the steel bars, and the reserved formwork can be quickly pulled out after the pouring is completed, which also facilitates turnover. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the main structure of Example 1; Figure 2 This is a partial cross-sectional view of Example 1; Figure 3 This is a schematic diagram of the operation of Example 1; In the diagram, 1 is the side plate, 2 is the locking frame, 3 is the reserved groove, 4 is the lifting ring, 5 is the strip-shaped sliding opening, 6 is the connecting rod, and 7 is the sliding plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example 1: This example aims to propose a device for reusable pre-reserved holes in cast-in-place structures.

[0016] according to Figures 1-3 As shown, it includes a reserved mold body, a reserved groove 3, and a limiting plate.

[0017] The pre-reserved mold body is formed by four side plates 1, and the side plates 1 are set at an angle. The interior of the pre-reserved mold body forms a cavity that is open from top to bottom, and the lower part of the cavity is provided with a closing structure.

[0018] The upper surface of the side plate 1 is fixedly connected with lifting rings 4.

[0019] The reserved groove 3 is opened on the opposite two side plates 1. The reserved groove 3 penetrates the lower surface of the reserved mold body and is used for the steel bars to pass through.

[0020] When in use, the bottom of the pre-formed mold is fastened to the floor slab frame, and a clearance is formed in the pre-formed mold to form a pre-reserved hole after the concrete is poured.

[0021] The limiting plate is formed by splicing two sliding plates 7. The limiting plates are all set on the side plate 1 with a reserved groove 3, and the adjacent limiting plates are all at the same height. The lateral position of the sliding plate 7 on the side plate 1 is adjustable.

[0022] Two strip-shaped sliding openings 5 ​​are provided on the side plate 1 with the reserved groove 3. The two strip-shaped sliding openings 5 ​​are located on both sides of the reserved groove 3 on the same side plate 1. A connecting rod 6 is slidably connected inside each strip-shaped sliding opening 5. The connecting rod 6 extends perpendicular to the extension direction of the strip-shaped sliding opening 5. One end of the connecting rod 6 is fixedly connected to the outer surface of the slide plate 7. The slide plate 7 is located in the reserved mold body.

[0023] The other end of the connecting rod 6 is fixedly connected to a locking component. The locking component is located outside the reserved mold body. The locking component includes a locking frame 2. The locking frame 2 includes a horizontal plate and a vertical plate. The horizontal plate extends along the extension direction of the strip-shaped sliding opening 5. The vertical plate is fixedly connected to the near ends of two adjacent horizontal plates. The vertical plate is set perpendicular to the horizontal plate. Each vertical plate is provided with a insertion hole for bolts to pass through.

[0024] The bottom of the limiting plate contacts the reinforcing bar, and the height of the limiting plate is adapted to the spacing between two adjacent vertical reinforcing bars, so that the reserved formwork can be detachably connected to the reinforcing cage structure formed by multiple reinforcing bars.

[0025] Two sliding plates 7 can slide back to back to form a gap for the steel bars to pass through. When the two sliding plates 7 slide relative to each other to form a limiting plate, the connecting rod 6 abuts against the wall of the strip-shaped sliding opening 5 near the reserved groove 3. The back ends of the two sliding plates 7 extend away from the reserved groove 3, so that the sliding plates 7 can block the strip-shaped sliding opening 5 and prevent concrete from seeping in during pouring.

[0026] The skateboard 7 is equipped with a locking device, which is used to connect two horizontally adjacent skateboards 7.

[0027] When the two sliding plates 7 are connected and sealed at the reserved groove 3, gaps are formed at the upper and lower ends of the reserved groove 3 for the reinforcing bars to pass through.

[0028] Working principle: After the floor slab truss is installed, the cast steel reinforcement is erected, the reserved formwork is fastened to the cast steel reinforcement, the steel reinforcement is inserted into the reserved groove 3, and then the sliding plates 7 located on the same side are pulled closer to each other and inserted into the two adjacent steel reinforcements. Then, the two sliding plates 7 are locked by the locking frame 2, so that the limiting plate is located between the two steel reinforcements, thereby quickly installing the reserved formwork onto the cast steel reinforcement.

[0029] After the pouring is completed and the concrete has partially hardened, the bolts are unscrewed, causing the two sliding plates 7 to move in opposite directions, thus creating a gap for the reinforcing bars to pass through. Then, the pre-reserved formwork is pulled out by hooking the lifting ring 4, thus forming the pre-reserved hole.

[0030] This allows the pre-reserved formwork to be quickly installed onto the reinforcing bars during the pouring of floor slab concrete without cutting the bars. After pouring, the pre-reserved formwork can be quickly removed, which also facilitates its reuse.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for reusing pre-reserved holes in cast-in-place structures, characterized in that: Includes a reserved mold body, a reserved groove (3), and a limiting plate; The reserved mold body is surrounded by four side plates (1), and the side plates (1) are inclined. The interior of the reserved mold body forms a cavity that is open from top to bottom, and the lower part of the cavity is provided with a closing structure. The reserved groove (3) is opened on the opposite side plates (1), the reserved groove (3) penetrates the lower surface of the reserved mold body, and the reserved groove (3) is used for the steel bars to pass through; The limiting plate is formed by splicing two sliding plates (7). The limiting plates are all set on the side plate (1) with a reserved groove (3), and the adjacent limiting plates are all at the same height. The sliding plate (7) is adjustable in the lateral position on the side plate (1). The bottom of the limiting plate is in contact with the reinforcing steel. The two sliding plates (7) can slide back to back to form a gap for the steel bars to pass through; The skateboard (7) is provided with a locking element, which is used to connect two horizontally adjacent skateboards (7); When the two slide plates (7) are connected and sealed at the reserved groove (3), the upper and lower ends of the reserved groove (3) form a gap for the reinforcing bars to pass through.

2. The reusable pre-reserved hole device in a cast-in-place structure according to claim 1, characterized in that: The side plate (1) with the reserved groove (3) has two strip-shaped sliding openings (5). The two strip-shaped sliding openings (5) are located on both sides of the reserved groove (3) on the same side plate (1). Each strip-shaped sliding opening (5) is guided and slidably connected with a connecting rod (6). The connecting rod (6) extends perpendicular to the extension direction of the strip-shaped sliding opening (5). One end of the connecting rod (6) is fixedly connected to the outer surface of the slide plate (7). The slide plate (7) is located in the reserved mold body. The other end of the connecting rod (6) is fixedly connected to a locking element, which is located outside the reserved mold body.

3. A pre-reserved hole device for reuse in cast-in-place structures according to claim 2, characterized in that: The locking component includes a locking frame (2), which includes a horizontal plate and a vertical plate. The horizontal plate extends along the extension direction of the strip-shaped sliding opening (5), and the vertical plate is fixedly connected to the near ends of two adjacent horizontal plates, and the vertical plate is set perpendicular to the horizontal plate. Each upright plate has a socket for bolts to pass through.

4. A reusable pre-reserved hole device for cast-in-place structures according to any one of claims 1-3, characterized in that: The upper surface of each side plate (1) is fixedly connected with a lifting ring (4).

5. A reusable pre-reserved hole device for cast-in-place structures according to any one of claims 1-3, characterized in that: When the two sliding plates (7) slide and splice together to form a limiting plate, the connecting rod (6) abuts against the wall of the strip-shaped sliding opening (5) near the reserved groove (3), and the opposite ends of the two sliding plates (7) extend in a direction away from the reserved groove (3), so that the sliding plates (7) can block the strip-shaped sliding opening (5).

6. A reusable pre-reserved hole device for cast-in-place structures according to any one of claims 1-3, characterized in that: The height of the limiting plate is adapted to the spacing between two adjacent vertical reinforcing bars, so that the reserved formwork can be detachably connected to the reinforcing cage structure formed by multiple reinforcing bars.

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