A device for measuring the thickness of the concrete cover of reinforcing bars

Abstract

This utility model discloses a rebar protective layer thickness control device comprising a lower control unit and an upper control unit. The lower control unit includes a lower base and an upper support base. The lower base includes a base plate and a lower connecting stud or a lower connecting tube. The upper support base includes a top plate and an upper connecting tube or an upper connecting stud. The top plate is provided with a lower rebar groove. The top plate of the lower control unit is provided with several insertion slots, while the lower part of the upper control unit is provided with several downwardly extending insertion posts, which are inserted into the insertion slots. This utility model is used to replace existing pads to achieve protective layer thickness control. It adopts an adjustable structure, which can easily adjust the overall height to meet the protective layer thickness requirements of different areas. The upper part of the device has a groove where the rebar can be embedded. In most scenarios, it does not need to be tied and fixed, effectively reducing labor intensity.

Description

Technical Field

[0001] This utility model relates to the technical field of casting formwork, specifically to a device for adjusting the thickness of the concrete cover of reinforcing bars. Background Technology

[0002] The concrete cover is the layer of concrete surrounding the outermost layer of reinforcing bars in a concrete member. Its main function is to protect the bars from corrosion and it also provides some fire resistance and heat insulation. The thickness of the concrete cover needs to be controlled by comprehensively considering the environmental category, member type, and design service life. Generally, its thickness should not be less than the nominal diameter of the reinforcing bar. During construction, height is typically controlled using spacers, either high-strength mortar or plastic. The spacing between these spacers should not exceed 1.5m for beam members and 1.2m for slab members. To prevent movement, they sometimes need to be securely tied, especially at the top of slopes.

[0003] Currently, commonly used spacer blocks present several problems during use. First, spacer blocks require wire binding, which involves limited operating space and high labor intensity. Without proper securing, the spacer blocks are prone to displacement during pouring, potentially leading to hollow areas or affecting the control of the protective layer thickness. Second, the height of spacer blocks on the market is currently fixed. On large construction sites, the thickness of the protective layer for rebar may vary in different locations, requiring the procurement of spacer blocks of different heights, which negatively impacts on-site material management and requisition. Summary of the Invention

[0004] The purpose of this invention is to provide a device for adjusting the thickness of the concrete cover of reinforcing bars, so as to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides a device for determining the thickness of the reinforcing bar protective layer, comprising a lower control unit, wherein the lower control unit includes a lower base and an upper support base, the lower base including a base plate and a lower connecting stud or a lower connecting tube; and the upper support base including a top plate and an upper connecting tube or an upper connecting stud.

[0006] Furthermore, a lower steel bar groove is provided on the top plate of the lower control unit.

[0007] Furthermore, the traveling device also includes an upper control unit, the top plate of the lower control unit is provided with several insertion slots, and the lower part of the upper control unit is provided with several downwardly extending insertion posts, which are inserted into the insertion slots.

[0008] Furthermore, the upper control unit includes a connecting seat and a top support seat. The connecting seat includes a connecting seat base, a connecting seat connecting stud, a connecting seat connecting tube, or a connecting seat connecting threaded hole. The top support seat includes an upper top plate, a top support connecting tube, or a top support connecting stud.

[0009] Furthermore, several downward-extending plug-in posts are provided at the lower part of the connecting base chassis.

[0010] Furthermore, upper reinforcing bar grooves are provided on the lower surface of the connecting base, with the upper and lower reinforcing bar grooves arranged alternately. (To be finalized after the design is determined) This utility model proposes a guide device for controlling the thickness of the concrete cover of reinforcing bars, replacing existing spacers to achieve control over the cover thickness. The device features an adjustable structure, allowing for easy adjustment of its overall height to meet the thickness requirements of different areas. A groove is provided at the top of the device, allowing the reinforcing bars to be embedded within it. In most scenarios, binding and fixing are unnecessary, effectively reducing labor intensity. Furthermore, for single-layer reinforcing bar casting scenarios, this application also provides an upper concrete cover thickness control unit. The upper and lower control units are connected via a snap-fit ​​connection, offering advantages such as convenient operation and adjustable thickness. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0012] Figure 2 This is a schematic diagram of the lower control unit of this utility model. Detailed Implementation

[0013] 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.

[0014] As attached Figure 1-2 As shown, the rebar protective layer thickness tracking device involved in this utility model includes a lower control unit 1 and an upper control unit 2.

[0015] The lower control unit 1 includes a lower base 11 and an upper support base 12. The lower base 11 includes a chassis 111 and a lower connecting stud 112 or a lower connecting tube 112. The upper support base 12 includes a top plate 121 and an upper connecting tube 122 or an upper connecting stud 122.

[0016] As shown in the attached diagram, the lower base 11 is equipped with a lower connecting stud 112, and the upper support base 12 is equipped with an upper connecting screw tube 122. The lower connecting stud 112 and the upper connecting screw tube 122 are connected by threads. The overall height of the lower control unit 1 can be adjusted by screwing in different depths. A mark can also be set on the lower connecting stud 112 to indicate the currently adjusted height.

[0017] In addition, a lower rebar groove g1 is provided on the top plate 121. The width and depth of the lower rebar groove g1 are designed according to the diameter of the rebar. The depth is usually between 50% and 100% of the rebar diameter, and the width is greater than the rebar diameter. In use, the rebar can be completely embedded in the groove to achieve a stable fixation.

[0018] For applications involving single-layer reinforcement, an upper control unit 2 is provided, which is connected to the lower control unit 1 via a pin connection. Specifically, the top plate 121 of the lower control unit 1 has several insertion slots g2, while the lower part of the upper control unit has several downwardly extending insertion posts g3. The connection between the upper and lower control units is achieved by inserting the insertion posts into the insertion slots.

[0019] The upper control unit 2 includes a connecting seat 21 and a top support seat 22. The connecting seat 21 includes a connecting seat base 211, a connecting seat connecting stud 212, a connecting seat connecting threaded tube 212, or a connecting seat connecting threaded hole 212. The top support seat 22 includes an upper top plate 221, a top support connecting threaded tube 222, or a top support connecting stud 222.

[0020] In the attached figure, the connecting base 211 of the connecting base 21 is provided with a connecting threaded hole 212 in the center, and the top support connecting stud 222 of the top support 22 is screwed into the connecting threaded hole 212.

[0021] Several downwardly extending plug-in posts g3 are provided at the lower part of the connecting base plate 211, which cooperate with the plug-in grooves g2 on the top plate 121. At the same time, an upper steel bar groove g4 is also provided on the lower surface of the connecting base plate 211. The upper steel bar groove g4 and the lower steel bar groove g1 are staggered at 90 degrees.

[0022] The connecting seat 21 and the top support seat 22 are connected by a connecting stud 212 or a connecting tube 212, and the top support connecting tube 222 or the top support connecting stud 222. By screwing in different depths, the overall height of the lower control unit 2 can be adjusted.

[0023] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A device for determining the thickness of the concrete cover for reinforcing bars, characterized in that, The device includes a lower control unit, which comprises a lower base and an upper support base. The lower base includes a chassis and a lower connecting stud or a lower connecting tube. The upper support base includes a top plate and an upper connecting tube or an upper connecting stud. The traveling device also includes an upper control unit. The top plate of the lower control unit is provided with several insertion slots, and the lower part of the upper control unit is provided with several downwardly extending insertion posts that are inserted into the insertion slots. The upper control unit includes a connecting base and a top support base. The connecting base includes a connecting base chassis, a connecting base connecting stud or a connecting base connecting tube or a connecting base connecting threaded hole. The top support base includes an upper top plate and a top support connecting tube or a top support connecting stud.

2. The device of claim 1, wherein, A groove for the lower reinforcing bar is provided on the top plate of the lower control unit.

3. The device of claim 1, wherein, Several downward-extending plug-in posts are provided at the bottom of the connector base.

4. The device of claim 1, wherein, The lower surface of the connecting seat base is also provided with upper steel bar grooves, which are arranged alternately with the lower steel bar grooves.

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