Steel bar protective layer measuring tool

By designing a measuring fixture for rebar cover, and utilizing a retractable jaw structure and threaded connection of nuts, the measurement error caused by visual angle influence was solved, achieving high-precision and high-efficiency testing, thereby improving the pass rate of rebar cover and the durability of concrete structures.

CN223596746UActive Publication Date: 2025-11-25CHINA RAILWAY FIRST GROUP CO LTD +1
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Patent Information

Application Number
CN202520051830.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2025-11-25
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

In existing technologies, the thickness of the protective layer of steel reinforcement at the bottom of beams and slabs or on the side walls of columns is easily affected by the visual angle, leading to reading errors, failing to guarantee measurement accuracy, and affecting the durability of the engineering entity.

Method used

A tooling for measuring the protective layer of reinforcing bars was designed, including first and second hollow measuring tube components, equipped with a retractable measuring jaw structure and a nut. The measuring jaw is extended and retracted through a threaded connection, which facilitates intuitive reading of the thickness of the protective layer of reinforcing bars and improves the detection accuracy.

Benefits of technology

It achieves high precision and efficiency in the detection of steel reinforcement protective layer, ensures the pass rate of the test, eliminates the problem of unqualified protective layer thickness caused by errors, and improves the durability of concrete structures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a steel bar protective layer measuring tool which comprises a first hollow measuring tube component, a second hollow measuring tube component is arranged in the first hollow measuring tube component, a measuring jaw hole is formed in the side face of the first hollow measuring tube component, and a first telescopic measuring jaw component is arranged at one end of the second hollow measuring tube component. The other end of the second hollow measuring tube part is provided with a second telescopic measuring jaw part capable of moving in a measuring jaw hole in the side face of the first hollow measuring tube part, the outer surface of the first hollow measuring tube part is provided with a measuring range capable of being visually read, the outer surface of the second hollow measuring tube part is provided with a measuring range capable of being visually read, and the measuring ranges are used for measuring the thickness of a steel bar protective layer; the thickness of the protective layer can be visually read, and the detection precision and detection efficiency of the steel bar protective layer are improved, so that the qualification rate of the steel bar protective layer is ensured, and the durability of a concrete structure is further improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a reinforcing steel bar protective layer measuring technical field especially relates to a reinforcing steel bar protective layer measuring tool. BACKGROUND

[0002] At present, the reinforcing steel bar protective layer thickness of the beam, the plate bottom or the column side wall is detected mostly by the rule measurement, the measurement mode is easily affected by the visual angle and causes the reading error, thereby the reinforcing steel bar protective layer thickness measurement precision cannot be guaranteed, the project entity durability is affected. UTILITY MODEL CONTENTS

[0003] In order to overcome the insufficient of prior art, the utility model provides a reinforcing steel bar protective layer measuring tool, intuitive reading protective layer thickness is realized, reinforcing steel bar protective layer detection precision and detection efficiency are improved, thereby guaranteeing reinforcing steel bar protective layer qualified rate, further improve the durability of concrete structure.

[0004] In order to realize the utility model purposes, the utility model adopts the following technical scheme:

[0005] A reinforcing steel bar protective layer measuring tool, the inside of first hollow volume pipe part is equipped with second hollow volume pipe part, the side of first hollow volume pipe part is equipped with volume claw hole, one end of second hollow volume pipe part is equipped with first telescopic volume claw part, the other end of second hollow volume pipe part is equipped with second telescopic volume claw part, which can be active in the side volume claw hole of first hollow volume pipe part, the outside surface of first hollow volume pipe part is equipped with the range that can be directly read, the outside surface of second hollow volume pipe part is equipped with the range that can be directly read, and the thickness of reinforcing steel bar protective layer is measured.

[0006] Further, the first telescopic volume claw part includes a first volume claw cavity structure and a first telescopic volume claw structure, and the first volume claw cavity structure is movably connected with the first telescopic volume claw structure.

[0007] Further, the first telescopic volume claw part further includes a first nut member, and the first nut member is connected with the first telescopic volume claw structure.

[0008] Optionally, the first nut member and the first telescopic claw structure can be connected in a threaded fixed connection mode, the first telescopic claw structure is provided with an internal thread, and one end of the first nut member is provided with an external thread matched with the internal thread of the first telescopic claw structure.

[0009] Further, the first telescopic claw structure includes a first telescopic claw member, a second telescopic claw member and a third telescopic claw member, the first telescopic claw member is movably connected with the first accommodatable claw cavity structure and the second telescopic claw member, the second telescopic claw member is movably connected with the third telescopic claw member, and the third telescopic claw member is connected with the first nut member.

[0010] Further, the second telescopic claw structure includes a fourth telescopic claw member, a fifth telescopic claw member and a sixth telescopic claw member, the fourth telescopic claw member is movably connected with the second accommodatable claw cavity structure and the fifth telescopic claw member, the fifth telescopic claw member is movably connected with the sixth telescopic claw member, and the sixth telescopic claw member is connected with the second nut member.

[0011] Further, the second telescopic claw structure includes a fourth telescopic claw member, a fifth telescopic claw member and a sixth telescopic claw member, the fourth telescopic claw member is movably connected with the second accommodatable claw cavity structure and the fifth telescopic claw member, the fifth telescopic claw member is movably connected with the sixth telescopic claw member, and the sixth telescopic claw member is connected with the second nut member.

[0012] Optionally, the second nut member and the second telescopic claw structure can be connected in a threaded fixed connection mode, the second telescopic claw structure is provided with an internal thread, and one end of the second nut member is provided with an external thread matched with the internal thread of the second telescopic claw structure.

[0013] Further, the second telescopic claw structure includes a fourth telescopic claw member, a fifth telescopic claw member and a sixth telescopic claw member, the fourth telescopic claw member is movably connected with the second accommodatable claw cavity structure and the fifth telescopic claw member, the fifth telescopic claw member is movably connected with the sixth telescopic claw member, and the sixth telescopic claw member is connected with the second nut member.

[0014] The application has the advantages that the detection precision of the reinforcing steel bar protective layer is improved, so that the qualified rate of the reinforcing steel bar protective layer is ensured. The detection device has simple structure, is convenient to manufacture, and is easy to operate. The device is fast in on-site detection, has strong operability, improves the qualified rate of the reinforcing steel bar protective layer, effectively solves the problems of insufficient or excessive thickness of the reinforcing steel bar protective layer, and is suitable for concrete construction of prefabricated, cast-in-place beams, plates and columns.

[0015] The device realizes detection of the protective layer thickness and pouring concrete after adjustment, through the device, and through detection, the qualified rate of the protective layer thickness of all constructed sections is above 95%, which effectively prevents the unqualified protective layer thickness caused by detection precision error, thereby avoiding rework and resource waste; the device has low manufacturing cost, convenient practical operation, fast detection speed and high detection precision, improves the detection precision and efficiency of the reinforcing steel protective layer in the construction process, thereby improving the qualified rate of the reinforcing steel protective layer, effectively solving the problems of insufficient or excessive reinforcing steel protective layer thickness, and further improving the durability of the concrete structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 is a structural schematic view of a reinforcing steel protective layer measuring tool.

[0018] IDENTIFICATION OF DRAWINGS

[0019] 1-First hollow volume tube component, 2-Second hollow volume tube component, 301-First volume claw cavity structure that can be contained, 302-First telescopic volume claw structure, 303-First nut part, 401-Second volume claw cavity structure that can be contained, 402-Second telescopic volume claw structure, 403-Second nut part, 5-Directly observable range. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in detail below with reference to the drawings.

[0021] The embodiments of the present application will be described in detail below with reference to the drawings.

[0022] Embodiment one:

[0023] A kind of steel bar protective layer measuring tool, including first hollow volume tube component, the inside of first hollow volume tube component is equipped with second hollow volume tube component, the side of first hollow volume tube component is equipped with volume claw hole, one end of second hollow volume tube component is equipped with first retractable volume claw component, the other end of second hollow volume tube component is equipped with second retractable volume claw component, which can be active in the side volume claw hole of first hollow volume tube component, the outer surface of first hollow volume tube component is equipped with the range of direct visual reading, the outer surface of second hollow volume tube component is equipped with the range of direct visual reading, for measuring the thickness of steel bar protective layer.

[0024] First retractable volume claw component includes first volume claw cavity structure and first retractable volume claw structure, first volume claw cavity structure is movably connected with first retractable volume claw structure, and first retractable volume claw structure can be pushed into or pulled out of first volume claw cavity structure.

[0025] To further facilitate the first retractable volume claw structure to be pushed into or pulled out of the first volume claw cavity structure, the first retractable volume claw component further includes a first nut member connected with the first retractable volume claw structure, and the first retractable volume claw structure is facilitated to be pushed into or pulled out of the first volume claw cavity structure through the first nut member. Optionally, the connection mode of the first nut member and the first retractable volume claw structure can be a threaded fixed connection mode, the first retractable volume claw structure is provided with an internal thread, and one end of the first nut member is provided with an external thread matched with the internal thread of the first retractable volume claw structure.

[0026] The first retractable volume claw structure includes a first retractable volume claw member, a second retractable volume claw member and a third retractable volume claw member, the first retractable volume claw member is movably connected with the first volume claw cavity structure and the second retractable volume claw member respectively, the second retractable volume claw member is movably connected with the third retractable volume claw member, and the third retractable volume claw member is connected with the first nut member.

[0027] Second retractable volume claw component includes second volume claw cavity structure and second retractable volume claw structure, second volume claw cavity structure is movably connected with second retractable volume claw structure, and second retractable volume claw structure can be pushed into or pulled out of second volume claw cavity structure.

[0028] To further facilitate the second retractable volume claw structure to be pushed into or pulled out of the second volume claw cavity structure, the second retractable volume claw component further includes a second nut member connected with the second retractable volume claw structure, and the second retractable volume claw structure is facilitated to be pushed into or pulled out of the second volume claw cavity structure through the second nut member. Optionally, the connection mode of the second nut member and the second retractable volume claw structure can be a threaded fixed connection mode, the second retractable volume claw structure is provided with an internal thread, and one end of the second nut member is provided with an external thread matched with the internal thread of the second retractable volume claw structure.

[0029] The second telescopic claw structure comprises a fourth telescopic claw piece, a fifth telescopic claw piece and a sixth telescopic claw piece, the fourth telescopic claw piece is movably connected with the second cavity structure and the fifth telescopic claw piece respectively, the fifth telescopic claw piece is movably connected with the sixth telescopic claw piece, and the sixth telescopic claw piece is connected with the second screw cap piece.

[0030] In use, after the reinforcement cage is hoisted onto the cover plate bottom mold, the device is vertically placed on the bottom mold of the steel bar to be detected, the upper claw is slowly pushed upward by pressing the upper end, until the bottom claw hits the steel bar with the thickness of the protective layer to be detected, at this time, the scale at the top of the upper claw is the thickness of the protective layer of the steel bar to be detected, and whether the thickness of the protective layer is qualified can be quickly detected to adjust the thickness of the protective layer of the steel bar until the detection is qualified.

[0031] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system and units can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0032] The terms "first", "second", and "third" and the like in the description of the specification and the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a particular order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A cover meter tool, characterized by, The utility model provides a kind of first hollow volume tube component, the inside of first hollow volume tube component is equipped with second hollow volume tube component, the side of first hollow volume tube component is equipped with volume claw hole, one end of second hollow volume tube component is equipped with first telescopic volume claw component, the other end of second hollow volume tube component is equipped with second telescopic volume claw component, which can be active in the side volume claw hole of first hollow volume tube component, the outside of first hollow volume tube component is equipped with the range of intuitive reading, the outside of second hollow volume tube component is equipped with the range of intuitive reading, for measuring the thickness of steel bar protection layer.

2. The cover measurement tool of claim 1, wherein, The first telescopic volume claw component includes a first volume claw cavity structure and a first telescopic volume claw structure, and the first telescopic volume claw structure is movably connected with the first volume claw cavity structure.

3. The cover measurement tool of claim 2, wherein, The first telescopic volume claw component further includes a first nut member, and the first nut member is connected with the first telescopic volume claw structure.

4. The cover measurement tool of claim 3, wherein, The first nut member is threadedly connected with the first telescopic volume claw structure.

5. The cover measurement tool of claim 2, wherein, The first telescopic volume claw structure includes a first telescopic claw member, a second telescopic claw member and a third telescopic claw member.

6. The cover measurement tool of claim 1, wherein, The second telescopic volume claw component includes a second volume claw cavity structure and a second telescopic volume claw structure, and the second telescopic volume claw structure is movably connected with the second volume claw cavity structure.

7. The cover measurement tool of claim 6, wherein, The second telescopic volume claw component further includes a second nut member, and the second nut member is connected with the second telescopic volume claw structure.

8. The cover measurement tool of claim 7, wherein, The second nut member is threadedly connected with the second telescopic volume claw structure.

9. The cover measurement tool of claim 6, wherein, The second telescopic volume claw structure includes a fourth telescopic claw member, a fifth telescopic claw member and a sixth telescopic claw member. The fourth telescopic claw member is movably connected with the second volume claw cavity structure and the fifth telescopic claw member, the fifth telescopic claw member is movably connected with the sixth telescopic claw member, and the sixth telescopic claw member is connected with the second nut member.