KR200234843Y1 - Bar spacer with insert - Google Patents

Abstract

The present invention relates to a bar spacer combined with an insert that can improve the workability and workability when reinforcing slab reinforcement by using an integrated member of the bar spacer and the insert for reinforcement in reinforced concrete construction.

Insert spacer bar 1 of the present invention is a length member 11 of a predetermined length; A plurality of legs 12 joined under the length member 11 to support the length member; And, the lower end is provided with a fixing means (13a), the screw hole (13b) is formed downward and the cap hole (13b) is fitted into the cap 13c, the insert 13 which is joined under the length member 11 It is configured to include. In order to continuously connect the two spacers 1 coupled to the bar 1 in the longitudinal direction, a binding means is used. In the present invention, a U-shaped cross-sectional member having a cutout 2a is formed in the length member 11. As a specific example, the U-shaped clip 2 inserted into the end and connected to the end of the other length member 11 is adopted.

Therefore, the present invention contributes to shortening of air by installing bar spacers and inserts for a single process, and by using a U-shaped clip, it is possible to easily connect the bar spacers that are continuous in the longitudinal direction without overlapping parts and to waste unnecessary materials. To reduce it.

Description

Bar spacer with insert

The present invention relates to a bar spacer in which an insert is coupled. More specifically, the present invention relates to a bar spacer combined with an insert that can improve workability and workability when reinforcing slab by using a member in which bar spacers and a insert for inserting a rod are integrated in reinforced concrete construction.

In general, the construction of slabs in reinforced concrete tank construction is performed after installing spacer inserts for maintaining the gap between the formwork and the slab reinforcing bars, and insert inserts for attaching equipment such as ceiling panels or cable racks and air conditioners for electrical wiring. It is done by reinforcing slab reinforcement and placing concrete. Spacer is a member to secure the required coating thickness by maintaining a certain distance from the formwork as a pedestal of the slab reinforcing bar, and the insert for the moon is embedded in the slab at regular intervals for finishing work such as equipment or ceiling. to be. Conventionally, the installation of the spacer and the insert for the moon was made while having a separate construction process, but recently, a method of improving the workability by integrating the spacer and the insert for the moon has been developed.

In general, the slab reinforcement spacers can be distinguished into a bar space that is formed of a continuous reinforcement portion is formed by the independent spacer and a length member and a leg having a predetermined length are installed in the reinforcement position alone. Independent spacers are made of mortar, synthetic resin or steel plates and installed under slab reinforcement individually.In recent years, products with integrated independent spacers and inserts have been developed and unified, but these products are located under the slab reinforcement. As a result of frequent movement of workers for plumbing work and plumbing of concrete equipment, it is easy to be damaged or dislodged. In addition, since the installation position of the insert is marked on the entire slab formwork, it is required to be installed under all slab reinforcing bars, which requires a considerable amount of work.

On the other hand, bar spacers having a certain length can be reinforced with slab reinforcement while compensating for the disadvantages of independent spacers because the bar spacers are continuously installed side by side while maintaining a gap enough to support the slab reinforcement. In the related art, in order to continuously install the bar spacers, the length members were overlapped and the overlapped portions were bundled by binding the wires, and were installed on the slab formwork without a separate fixing device. This inevitably extends the length member by the overlapping portion of the bar spacers, which consumes unnecessary material and makes it difficult to integrate with the insert for inserts that must be installed at regular intervals since the continuous bar spacers are not aligned and installed alternately. This problem makes it difficult to adopt the bar spacers, although the bar spacers can reduce the workload and reduce the defect rate compared to the independent spacers.

Therefore, the inventors can not only fix the bar spacer to the slab formwork by integrating the bar spacer and the insert for insert, but also allow the installation of the insert for the insert precisely at regular intervals, thereby improving the workability and workability of the slab reinforcement. The result is the development of a bar spacer combined with an insert.

An object of the present invention is to provide a bar spacer combined with the insert that can be installed at the same time the bar spacer and the insert for the bar, the bar spacer can be fixed.

Another object of the present invention is the use of the U-shaped clip can be connected in the longitudinal direction of the bar spacers without overlapping parts, inserts that enable the installation of the insert for precisely at regular intervals even if the installation position is not indicated on the entire slab formwork It is to provide a spacer bar is combined.

1 is a front view of an embodiment of a bar spacer to which the insert of the present invention is coupled.

2 is a perspective view (a) and a cross-sectional view (b) of a U-shaped clip.

3 is a front view showing a state in which two inserts are coupled to a bar spacer by using the U-shaped binding clip of FIG.

4 is a cross-sectional detail view showing the slab reinforcement state using the bar spacer combined with the insert of the present invention.

<Description of Major Codes in Drawings>

1: Inserted bar spacer 2: U-shaped clip

2a: incision 2b: uneven portion

3: slab formwork 5: slab rebar

11: length member 12: leg

13: insert 13a: fastening means

13b: screw hole 13c: cap

The present invention will be described according to the drawings.

1 is a front view of an embodiment of a bar spacer 1 to which the insert of the present invention is coupled, the present invention comprises a length member 11 of a predetermined length; A plurality of legs 12 joined under the length member 11 to support the length member; And, the lower end is provided with a fixing means (13a), the screw hole (13b) is formed downward and the cap (13c) is fitted into the screw hole (13b), the insert 13 which is joined under the length member 11 It is configured to include.

The length member 11 is suitable to be applied to the steel wire or steel wire, the length of the work efficiency such as transport, installation and finishing work (installation equipment installation work such as ceiling plate or cable wiring and air conditioning equipment) It is preferable to decide in consideration of it, and it is normal that it is about 900-1200 mm which is the embedding interval of a substitute insert.

The plurality of legs 12 are joined at predetermined intervals below the length member 11 to support the length members, and the height and the sum of the thicknesses of the length members 11 should be equal to the coating thickness of the slab reinforcement on the construction site. The minimum coating thickness of slab reinforcement is to be made over 20mm. When the upper end is bent in the shape of the leg, the length member 11 is more stably supported. If a plastic cap is attached to the lower end of the leg 12 or finished with PE coating, it is possible to prevent the generation of rust due to the chemical action of iron and concrete after dismantling the slab formwork.

The insert 13 is the same as the insert for the moon, which is commonly used, but is not an independent member, but is joined and fixed to the length member 11 so that the insert 13 is combined with a conventional bar spacer composed of a length member and a leg, thereby being integrated. And, instead of one of the plurality of legs 12 are joined so that the height should be the same as the legs 12. A fixing means 13a is provided at the lower end of the insert 13 to allow the insert 1 of the present invention to be coupled to the bar spacer 1 to be fixed to the slab formwork 3, and the screw hole 13b is downwardly formed. It enables the fastening of the moon bolts for hanging the equipment such as ceiling racks or cable racks and air conditioning equipment. The cap 13c is fitted into the screw hole 13b to prevent foreign substances from entering the screw hole 13b when concrete is poured, and only need to be removed with a certain force if necessary.

2 is a perspective view (a) and a cross-sectional view (b) of the U-shaped clip (2), the U-shaped clip is a binding means for connecting the plurality of spacers in which the insert of FIG. 1 is coupled in the longitudinal direction, and FIG. The state in which the two inserts are coupled to the spacer 1 coupled by using the clip 2 is shown.

U-shaped clip (2) is a cut-out portion (2a) is formed on one side having a U-shaped cross-sectional shape, when the end of the length member 11 and the end of the other length member 11 is installed to abut each other incision ( 2a) to connect the two length members. At this time, the insert 13 of the spacer combined with the insert is positioned while maintaining a constant interval (same interval as the length of the length member). That is, when the length member 11 is a member of the 900 ~ 1200mm, which is the installation interval of the insert for the usual month, the insert 11 is installed while maintaining the 900 ~ 1200mm, the same interval as the length of the length member 11 do. The U-shaped clip 2 is preferably made of a thin iron plate or synthetic resin of about 0.2mm in thickness, it is effective to prevent loosening after binding if the uneven portion (2b) is formed on the inner surface.

Figure 4 is a cross-sectional detail showing the slab reinforcement state using the insert bar coupled to the present invention, the slab reinforcement method will be described below.

First, a bar spacer 1 is prepared in which an insert manufactured to have a length member 11 having the same length as the installation interval of the insert for the moon is combined. When the slab formwork (3) is installed and installed in the reinforced concrete construction, it draws only a portion of one side of the slab formwork to mark the initial position of the bar spacer (1) to which the insert is coupled. In accordance with the marked initial position, the insert 1 is coupled to the spacer 1 to be fixed to the slab formwork 3, and in the case of continuous connection in the longitudinal direction, the U-shaped clip 2 is inserted into the end of the length member 11. The two spacers join the bar spacers together. As a result, the insert 13 is positioned at a predetermined interval (the same interval as the length of the length member) without connecting the entire slab formwork because it is connected without overlapping portions. Subsequently, the slab reinforcement 5 is placed on the length member 11 of the bar spacer to which the insert is coupled.

The present invention can install the bar spacer and the insert for the moon in a single process can contribute to the air shortening. By using U-shaped clip, it is possible to easily connect the bar spacers extending in the longitudinal direction without overlapping parts, so that it is possible to install the insert for the moon at regular intervals without drawing the entire slab formwork and to reduce unnecessary waste of materials. . In addition, when the slab reinforcement is used to reinforce the slab reinforcement using the insert-coupled bar spacer, the insert-coupled bar spacer can secure the required coating thickness while reinforcing the slab reinforcement, thereby enabling the construction of the slab of sufficient strength.

Claims (4)

Length member 11 of a predetermined length; A plurality of legs 12 joined under the length member 11 to support the length member; And, Fixing means (13a) is provided in the lower portion, the screw hole (13b) is formed downward and the screw hole (13b) is inserted into the cap (13c), the insert (13) joined below the length member (11); Insert bar coupled spacer, characterized in that it comprises a. 2. The insert-coupled bar spacer of claim 1, wherein the leg (12) is bent in an upper end in a 부 shape, and a plastic cap is attached to the lower end or finished with PE coating. The U-shaped cross-section U-shaped clip (2) having a cutout (2a) is formed to connect the two length members to each other by being fitted to the end of the length member 11 and the end of the other length member (11) Insert bar coupled spacer, characterized in that it further comprises a). 4. The insert-coupled bar spacer of claim 3, wherein an uneven portion (2b) is formed on an inner surface of the U-shaped clip (2).