Deflection-preventing and falling-preventing reinforcing steel bar protective layer cushion block
By setting rebar grooves and anti-rotation stops on the rebar protective layer spacers, the problems of spacer misalignment, slippage, and detachment during construction are solved, thereby improving the stability of the rebar protective layer thickness and the structural durability, simplifying the construction process, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-27
- Publication Date
- 2026-03-06
AI Technical Summary
Existing steel reinforcement protective layer spacers are prone to displacement, slippage, detachment, and breakage during construction, resulting in uneven thickness of the steel reinforcement protective layer, which affects structural durability and the quality of the decorative surface layer.
A protective layer pad for anti-deflection and anti-detachment rebar is designed. By setting rebar grooves and anti-deflection stops on the pad body, multi-point support and limiting are achieved to ensure the stability of the rebar mesh. The binding wire is contained in the binding wire groove to avoid concentrated cracking of the binding wire.
It effectively prevents the spacer blocks from shifting, slipping, and falling off, ensures the uniform thickness of the steel reinforcement protective layer, improves the structural durability and the appearance quality of the concrete structure surface layer, simplifies construction convenience, and reduces costs.
Smart Images
Figure CN223974799U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building construction technology, and in particular to a protective layer pad for anti-deflection and anti-detachment of reinforcing bars. Background Technology
[0002] The position of the upper reinforcement bars in a floor slab directly affects the structural stress of the floor slab. If the upper reinforcement bars in the floor slab are covered with an excessive protective layer due to trampling or other reasons, it may cause the floor slab to crack, leak water, or even collapse. In particular, it is especially important to ensure the correct position of the upper reinforcement bars in cantilevered sections.
[0003] Currently, the commonly known concrete cover spacers for floor slab reinforcement are as follows: Figure 1 As shown, a reinforcing mesh is laid on the formwork. The mesh is fixed by a cross-shaped arrangement of bottom reinforcing bars 10 and top reinforcing bars 20. The intersections of the bottom and top reinforcing bars 10 and 20 are bound together with tie wires 30. Reinforcing mesh protective layer spacers 40 are placed on the bottom formwork to support it, typically at the intersections. However, existing reinforcing mesh protective layer spacers 40 lack anti-slip measures or have ineffective positioning. During construction, worker movement, concrete pouring, and vibration can easily cause the spacers 40 to shift and slip, resulting in direct contact between the reinforcing bars and the formwork, leading to excessively thick or thin protective layers. At the contact points between the spacers and the reinforcing bars, the tie wires 30 separate the bottom reinforcing bars 10 from the spacers 40, potentially causing stress concentration at the tie wires and leading to breakage of the spacers 40. When the protective layer thickness is outside the specified range, the surface of the reinforcing mesh is prone to rusting, reducing structural durability and causing defects in the decorative surface. Utility Model Content
[0004] This application provides a protective layer spacer for anti-deflection and anti-detachment of reinforcing bars, which improves the limiting function and effectively reduces the risk of displacement, slippage, detachment and breakage of the protective layer spacer due to construction operations.
[0005] The anti-deflection and anti-detachment steel reinforcement protective layer pad provided in this application includes: a pad body for supporting the steel reinforcement mesh;
[0006] The pad block body is supported at the cross intersection of the steel mesh;
[0007] The pad block body has a steel bar groove that matches the bottom steel bar of the steel mesh, and the inside of the steel bar groove is provided with a wire binding groove.
[0008] The pad block body is provided with anti-rotation stops symmetrically arranged at an angle, and the two anti-rotation stops limit and press against the two opposite angles at the cross intersection of the steel mesh.
[0009] In this application, by setting a steel bar groove on the pad block body and limiting it with two anti-rotation stops, the pad block body is prevented from deviating, slipping and falling off, thus achieving a better support effect; by setting a wire binding groove on the pad block body, the steel mesh is ensured to have full contact with the pad block body, avoiding concentrated pressure at the binding wire position that would cause the pad block body to break; while ensuring a relatively accurate steel reinforcement protective layer thickness, the structural durability and the appearance quality of the concrete structure surface are improved, the overall pad block body is easy to install, and has the advantages of simple structure and easy mass production.
[0010] In one specific implementation, multiple spacer blocks are provided, and these multiple spacer blocks support the reinforcing mesh in a horizontal position. This achieves multi-point support and ensures that the thickness of the reinforcing mesh cover is consistent.
[0011] In one specific implementation scheme, the bottom of the pad body has a planar structure. This results in a larger contact area with the template, improving anti-slip performance.
[0012] In one specific implementation scheme, the reinforcing mesh includes: multiple first reinforcing bars laid transversely at the bottom layer, and multiple second reinforcing bars laid longitudinally above the multiple first reinforcing bars; wherein,
[0013] The intersections of the multiple first ribs and the multiple second ribs are all tied with binding wire;
[0014] When the wire binding groove accommodates the wire binding, the corresponding first rib is fitted inside the rebar groove. The first rib at the bottom layer can make full contact with the rebar groove, and the wire binding groove reduces the risk of the wire binding crushing the pad block body.
[0015] In one specific implementation, the wire binding groove has a first groove and a second groove that intersect inside the rebar groove;
[0016] The first groove accommodates the binding wire tied along a first oblique direction, and the second groove accommodates the binding wire tied along a second oblique direction. Binding wires using different construction methods can be accommodated in the corresponding grooves, improving construction convenience.
[0017] In one specific implementation, the first groove is formed along the direction in which the two anti-rotation stops face each other, and the second groove intersects and connects with the first groove in a cross shape. Construction workers can accommodate the binding wire without changing their binding techniques.
[0018] In one specific implementation, the pad body is a rectangular pad or a circular pad. Molding can be done according to requirements to achieve mass production.
[0019] In one specific feasible implementation, the pad block body is a concrete pad block, and the two anti-rotation stops are higher than the upper surface of the pad block body. This method utilizes readily available materials, reducing costs.
[0020] In one specific feasible implementation, each anti-rotation stop has a first straight edge and a second straight edge with a right-angle bend;
[0021] The first straight edge is parallel to the steel bar groove;
[0022] The second straight edge is parallel to the multiple second ribs. The anti-rotation stop can be positioned at the intersection angle of the first and second ribs, reducing the risk of displacement, slippage, and detachment of the pad block body, and demonstrating stable and reliable support performance during construction.
[0023] In one specific implementation scheme, the two anti-rotation stops are located on both sides of the rebar groove;
[0024] Furthermore, the two anti-rotation stops are distributed at both ends of the rebar groove along the opening direction of the rebar groove. The overall structure is simple, the installation process is simple and easy to operate, and it is convenient for mass production. Attached Figure Description
[0025] Figure 1 This is a diagram showing the support status of existing steel reinforcement protective layer spacers;
[0026] Figure 2 This is a schematic diagram of the structure of the anti-deflection and anti-detachment rebar protective layer pad provided in the embodiments of this application;
[0027] Figure 3 for Figure 2 Sectional view of 1-1;
[0028] Figure 4 for Figure 2 Sectional view of 2-2.
[0029] Icon labels:
[0030] Bottom layer reinforcement 10, top layer reinforcement 20, tie wire 30, reinforcement protective layer spacer 40;
[0031] Pad body-100, rebar groove-110, anti-rotation stop-120, first straight edge-121, second straight edge-122, wire binding groove-130, first groove-131, second groove-132. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.
[0033] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0034] To facilitate understanding of the anti-deflection and anti-detachment rebar protective layer spacer provided in this application embodiment, its application scenario will be explained first. Currently, known floor slab rebar protective layer spacers, such as... Figure 1 As shown, a reinforcing mesh is laid on the formwork. The mesh is fixed by a cross-shaped arrangement of bottom reinforcing bars 10 and top reinforcing bars 20. The intersections of the bottom and top reinforcing bars 10 and 20 are bound together with tie wires 30. Reinforcing mesh protective layer spacers 40 are placed on the bottom formwork to support it, typically at the intersections. However, existing reinforcing mesh protective layer spacers 40 lack anti-slip measures or have ineffective positioning. During construction, worker movement, concrete pouring, and vibration can easily cause the spacers 40 to shift and slip, resulting in direct contact between the reinforcing bars and the formwork, leading to excessively thick or thin protective layers. At the contact points between the spacers and the reinforcing bars, the tie wires 30 separate the bottom reinforcing bars 10 from the spacers 40, potentially causing stress concentration at the tie wires and leading to breakage of the spacers 40. When the protective layer thickness is outside the specified range, the surface of the reinforcing mesh is prone to rusting, reducing structural durability and causing defects in the decorative surface. In view of this, this application provides a protective layer spacer for anti-deflection and anti-detachment of reinforcing bars, which improves the limiting function and effectively reduces the risk of displacement, slippage, detachment and breakage of the protective layer spacer caused by construction operations.
[0035] refer to Figure 2 The anti-deflection and anti-detachment rebar protective layer pad provided in this application embodiment includes: a pad body 100 for supporting the rebar mesh; the rebar mesh and... Figure 1The steel mesh shown in the paper has a consistent shape. For easy distinction, the steel mesh includes: multiple first bars laid horizontally at the bottom layer, and multiple second bars laid vertically above the multiple first bars; wherein, the intersections of the multiple first bars and multiple second bars are all tied with binding wire. During the binding process, due to inconsistent worker techniques, there are often left- or right-slanted bindings. However, the binding wire groove 130 provided in this application can perfectly solve the above problems, thereby allowing the first bars at the bottom layer to be in contact with the steel bar groove 110 on the pad block body 100 and be confined.
[0036] Specifically, the spacer block 100 is supported at the intersection of the reinforcing mesh; multiple spacer blocks 100 are provided, supporting the reinforcing mesh horizontally. This multi-point support ensures consistent thickness of the reinforcing mesh cover. The bottom of the spacer block 100 is a planar structure, providing a large contact area with the formwork and improving anti-slip performance. Thus, by supporting the reinforcing mesh with multiple spacer blocks 100, the height positioning of the reinforcing mesh is ensured to be stable, preventing slippage for workers walking on the mesh, thereby ensuring that the thickness of the reinforcing mesh cover is within the standard range after concrete pouring.
[0037] Combination Figure 3 and Figure 4 As shown, the pad block body 100 has a rebar groove 110 adapted to the bottom rebar of the steel mesh, and a binding wire groove 130 is provided inside the rebar groove 110; when the binding wire groove 130 accommodates the binding wire, the corresponding first rebar is attached to the inside of the rebar groove 110. The first rebar at the bottom layer can make full contact with the rebar groove 110, and the binding wire groove 130 reduces the risk of the binding wire cracking the pad block body 100.
[0038] The pad block body 100 is symmetrically provided with anti-rotation stops 120. The two anti-rotation stops 120 limit and press against the two relative angles at the cross intersection of the steel mesh. The two anti-rotation stops 120 are higher than the top plane of the pad block body 100, so that they can stop at the angle where the second and first reinforcing bars intersect.
[0039] The pad block body 100 can be a rectangular or circular pad block. Molds can be made according to requirements, enabling mass production. In this application, the pad block body 100 is preferably a circular pad block, and molds with the same shape can be manufactured to achieve mass production. The pad block body 100 is made of concrete, and the two anti-rotation stops 120 are higher than the upper surface of the pad block body 100. Materials are readily available, reducing costs.
[0040] When specifically setting the binding wire groove 130, the binding wire groove 130 has a first groove 131 and a second groove 132 that intersect inside the rebar groove 110; the first groove 131 accommodates binding wires tied along a first diagonal direction, and the second groove 132 accommodates binding wires tied along a second diagonal direction. Binding wires using different construction methods can be accommodated in the corresponding grooves, improving construction convenience. The first groove 131 is opened along the direction in which the two anti-rotation stops 120 face each other, and the second groove 132 intersects and connects with the first groove 131. Construction workers do not need to change the binding method to accommodate the binding wires.
[0041] In addition, each anti-rotation stop 120 has a first straight edge 121 and a second straight edge 122 with right-angle bends; the first straight edge 121 is parallel to the rebar groove 110; the second straight edge 122 is parallel to multiple second reinforcing bars. The anti-rotation stop 120 can be limited at the intersection angle of the first and second reinforcing bars, reducing the risk of displacement, slippage and detachment of the pad block body 100, and exhibiting stable and reliable support performance during construction.
[0042] Two anti-rotation stops 120 are located on both sides of the rebar groove 110; and the two anti-rotation stops 120 are distributed at both ends of the rebar groove 110 along the opening direction of the rebar groove 110. The overall structure is simple, the installation process is simple and easy to operate, and it is convenient for mass production.
[0043] In this application, by setting a steel bar groove 110 on the pad block body 100 and limiting it with two anti-rotation stops 120, the pad block body 100 is prevented from deviating, slipping and falling off, thus achieving a better support effect. A wire binding groove 130 is set on the pad block body 100 to ensure full contact between the steel mesh and the pad block body 100, and to avoid concentrated pressure at the binding wire position that would cause the pad block body 100 to break. While ensuring a relatively accurate steel bar protective layer thickness, the durability of the structure and the appearance quality of the concrete structure surface are improved. The overall pad block body 100 is easy to install and has the advantages of simple structure and easy mass production.
[0044] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the framework of this disclosure, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this specification, which are not provided in detail for the sake of brevity.
[0045] Additionally, to simplify the description and discussion, and to avoid obscuring one or more embodiments of this specification, well-known power / ground connections for other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be illustrated in block diagram form to avoid obscuring one or more embodiments of this specification, and this also takes into account the fact that the details of implementation of these block diagram apparatuses are highly dependent on the platform on which one or more embodiments of this specification will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details have been set forth to describe exemplary embodiments of this disclosure, it will be apparent to those skilled in the art that one or more embodiments of this specification may be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.
[0046] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.
Claims
1. A deflection-preventing and debonding-preventing reinforcement protection layer cushion block, comprising a cushion block body for supporting a reinforcement mesh; characterized in that, the cushion block body is supported at a cross intersection of the reinforcement mesh; a reinforcement groove is formed on the cushion block body and adapted to bottom reinforcement of the reinforcement mesh, and a wire binding groove is arranged inside the reinforcement groove; anti-rotation stops are symmetrically arranged on the cushion block body in a diagonal direction, and two anti-rotation stops are located at two opposite included angles of the cross intersection of the reinforcement mesh.
2. The deflection and pullout resistant reinforcing protection layer mat of claim 1, wherein, A plurality of the cushion block bodies are arranged, and the plurality of the cushion block bodies support the reinforcement mesh in a horizontal state.
3. The deflection and pullout resistant reinforcing protection layer mat of claim 2, wherein, The bottom of the cushion block body is a planar structure.
4. The deflection and pullout resistant reinforcing protection layer mat of claim 2, wherein, The reinforcement mesh comprises a plurality of first reinforcements laid horizontally at the bottom and a plurality of second reinforcements laid vertically above the plurality of first reinforcements; wherein, the cross intersections of the plurality of first reinforcements and the plurality of second reinforcements are bound by wires; when the wire binding groove accommodates the wire, the corresponding first reinforcement is fitted inside the reinforcement groove.
5. The deflection and pullout resistant reinforcing protection layer mat of claim 4, wherein, The wire binding groove has a first groove and a second groove intersecting inside the reinforcement groove; the first groove accommodates the wire bound in a first diagonal direction, and the second groove accommodates the wire bound in a second diagonal direction.
6. The deflection and pullout resistant reinforcing protection layer mat of claim 5, wherein, The first groove is formed in a direction in which the two anti-rotation stops face each other, and the second groove intersects the first groove.
7. The deflection and pullout resistant reinforcing protection mat of claim 4, wherein, The cushion block body is a rectangular cushion block or a circular cushion block.
8. The deflection and pullout resistant reinforcing protection layer mat of claim 7, wherein, The cushion block body is a cushion block made of concrete, and the two anti-rotation stops are higher than the upper plane of the cushion block body.
9. The deflection and pullout resistant reinforcing protection layer mat of claim 8, wherein, Each anti-rotation stop has a first straight edge and a second straight edge bent at a right angle; the first straight edge is parallel to the reinforcement groove; the second straight edge is parallel to the plurality of second reinforcements.
10. The deflection and pullout resistant reinforcing protection layer mat of claim 9, wherein, The two anti-rotation stops are located on both sides of the reinforcement groove, respectively; and the two anti-rotation stops are distributed at both ends of the reinforcement groove in the direction in which the reinforcement groove is formed.