Concrete protection layer cushion block

By designing a concrete protective layer pad with lower and upper rebar grooves and utilizing an n-shaped rod insertion structure, the problem of rebar displacement was solved, enabling rapid rebar positioning and improved construction efficiency.

CN223793784UActive Publication Date: 2026-01-13CEEC ANHUI ELECTRICAL POWER CONSTR NO 1 CO
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Patent Information

Application Number
CN202520214852.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2026-01-13
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

In existing technologies, the concrete protective layer spacers are not securely fixed, which leads to the displacement of the reinforcing bars, resulting in exposed concrete and insufficient protective layer thickness. Furthermore, the method of binding with wire is time-consuming and labor-intensive, with long operation time and low practicality.

Method used

Design a concrete protective layer pad, including a pad body and an insert rod. The pad body is provided with a lower rebar groove and an upper rebar groove. The insert rod consists of two n-shaped rods. The rebar is quickly positioned by the insertion hole of the insert rod cooperating with the rebar groove, thus simplifying the operation process.

Benefits of technology

It enables rapid positioning of reinforcing bars, preventing them from being misplaced and exposed. The operation is simple, time-saving, and labor-saving, thus improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a concrete protection layer cushion block, which relates to the technical field of building construction, and comprises a cushion body and insertion holes, one side of the cushion body is provided with a lower steel bar groove and an upper steel bar groove, the upper steel bar groove is positioned above the lower steel bar groove and is vertically intersected with the lower steel bar groove, the side of the cushion body is divided into four areas, and each area is provided with an insertion hole; the inserting rod comprises two n-shaped rods, cross rods in the two n-shaped rods are connected in a crossed mode, and the four lower ends of the two n-shaped rods are in one-to-one correspondence with the inserting holes in the four areas respectively; during use, firstly, the cushion body is placed on a formwork, then transverse reinforcing steel bars are placed in the lower reinforcing steel bar grooves, then longitudinal reinforcing steel bars are placed in the upper reinforcing steel bar grooves, and after the positions of the reinforcing steel bars are adjusted, the four lower ends of the bottoms of the inserting rods are correspondingly inserted into the four inserting holes, so that the positions of the reinforcing steel bars are limited, the whole process is time-saving and labor-saving, the operation is simple, and the practicability is high. And convenience and rapidness are achieved, and steel bars can be rapidly positioned.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a concrete protective layer pad block. Background Technology

[0002] After the concrete pouring of floor slabs, frame beams and columns, and shear walls, exposed rebar and insufficient protective layer thickness are very likely to occur. After extensive field observation, it was found that most of these problems are caused by the protective layer spacers not being properly fixed, which leads to the spacers falling off during concrete pouring and vibration, thus causing the rebar to shift.

[0003] To solve this problem, technicians devised a limiting mechanism on the pad to restrict the position of the reinforcing bars and prevent them from shifting. For example, patent document CN206957068U discloses a concrete protective layer pad, which includes a concrete pad body, shallow grooves, deep grooves, wire grooves, and binding wires. The concrete pad body has two mutually perpendicular shallow grooves and deep grooves. The shallow grooves are used to embed the inner reinforcing bars, and the deep grooves are used to embed the outer reinforcing bars. The shallow grooves are located outside the deep grooves. Two wire grooves perpendicular to the shallow grooves are reserved around the concrete pad body, with the two grooves located on both sides of the shallow grooves. The binding wires are embedded in the wire grooves, and the concrete pad body is tied to the inner reinforcing bars by the binding wires, thereby fixing the pad and the reinforcing bars together.

[0004] However, fixing the reinforcing bars by tying them with wire is too troublesome, time-consuming and labor-intensive. Multiple sets of spacers are usually required on a single formwork. Tying the reinforcing bars with wire will result in a long construction period and high labor costs. It is also time-consuming to limit the position of the reinforcing bars and has low practicality. Utility Model Content

[0005] The purpose of this utility model is to provide a concrete protective layer pad block to solve the following technical problems:

[0006] How to quickly limit the movement of the reinforcing bars on the concrete protective layer spacer?

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A concrete protective layer pad, characterized in that it comprises:

[0009] The pad has a lower reinforcing bar groove and an upper reinforcing bar groove on one side. The upper reinforcing bar groove is located above the lower reinforcing bar groove and intersects the lower reinforcing bar groove perpendicularly, dividing this side of the pad into four areas, each area having an insertion hole.

[0010] The insertion rod includes two n-shaped rods, the crossbars of the two n-shaped rods are connected to each other, and the four lower ends of the two n-shaped rods correspond one-to-one with the insertion holes in the four areas.

[0011] As a further embodiment of this utility model: the insertion holes in the four regions are centrally symmetrical about the intersection center point of the upper rebar groove and the insertion hole.

[0012] As a further embodiment of this utility model: the crossbars of the two n-shaped rods are perpendicularly connected at their centers.

[0013] As a further embodiment of this invention: the length of the vertical rod in the two n-shaped rods is the same as the depth of the insertion hole.

[0014] As a further aspect of this utility model, the depth of the lower rebar groove is twice the depth of the upper rebar groove.

[0015] As a further embodiment of this utility model, the bottom of both the lower and upper reinforcing bar grooves are semi-circular.

[0016] As a further embodiment of this utility model, both the pad and the insert rod are made of steel.

[0017] The beneficial effects of this utility model are:

[0018] When using this concrete protective layer spacer, first place the spacer on the formwork, then place the transverse reinforcing bars in the lower reinforcing bar groove, and then place the longitudinal reinforcing bars in the upper reinforcing bar groove. After adjusting the position of the reinforcing bars, insert the four lower ends of the insert rod into the four corresponding holes. This achieves the positioning of the reinforcing bars and can prevent the reinforcing bars from being exposed due to misalignment during subsequent construction. The number of spacers used can be freely controlled as needed. The whole process is time-saving, labor-saving, simple to operate, convenient and quick, and can quickly position the reinforcing bars. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of the concrete protective layer pad block in one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the concrete protective layer pad block in use in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the concrete protective layer pad blocks distributed on the template in one embodiment of this utility model.

[0023] In the diagram: 100, pad; 101, lower rebar groove; 102, upper rebar groove; 103, insertion hole; 200, insertion rod; 300, rebar; 400, formwork. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 As shown, this utility model is a concrete protective layer pad for limiting the position of the reinforcing bar 300. The concrete protective layer pad is composed of a pad body 100 and an insert rod 200. The pad body 100 is a cubic steel piece with a lower reinforcing bar groove 101 and an upper reinforcing bar groove 102 on its upper side. The lower reinforcing bar groove 101 is opened horizontally through the center of the upper side of the pad body 100, and the upper reinforcing bar groove 102 is opened vertically through the center of the upper side of the pad body 100. The upper reinforcing bar groove 102 intersects the lower reinforcing bar groove 101 perpendicularly, and the depth of the upper reinforcing bar groove 102 is twice the depth of the lower reinforcing bar groove 101. The bottom of both the lower reinforcing bar groove 101 and the upper reinforcing bar groove 102 are semi-circular, which is conducive to fitting the reinforcing bar 300.

[0026] It should be noted that the shape of the pad 100 is not specifically limited, as long as it meets the requirements of the above-mentioned structural settings. For example, in other embodiments, the pad 100 can be cylindrical, rectangular or rhomboid.

[0027] The lower rebar groove 101 and the upper rebar groove 102 intersect each other horizontally and vertically, thus dividing the upper side of the lower rebar groove 101 into four identical regions. Each region has a vertically downward insertion hole 103. The insertion holes 103 in the four regions are centrally symmetrical about the intersection center point of the upper rebar groove 102 and the insertion hole 103.

[0028] The insertion rod 200 consists of two steel n-shaped rods. The horizontal bars of the two n-shaped rods are perpendicularly connected at their center, and the four lower ends of the two n-shaped rods correspond one-to-one with the insertion holes 103 in the four areas. The length of the vertical bar of the two n-shaped rods is the same as the depth of the insertion hole 103.

[0029] The working principle of this utility model:

[0030] Please see Figure 2-3When using this concrete protective layer spacer, first place the spacer 100 on the formwork 400, then place the transverse reinforcing bars 300 in the lower reinforcing bar groove 101, and then place the longitudinal reinforcing bars 300 in the upper reinforcing bar groove 102. After adjusting the position of the reinforcing bars 300, insert the four lower ends of the insert rod 200 into the four insertion holes 103, thus limiting the position of the reinforcing bars 300 and preventing the reinforcing bars 300 from being exposed in different positions during subsequent construction. The number of spacers used can be freely controlled as needed. The whole process is time-saving, labor-saving, simple to operate, convenient and quick.

[0031] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A concrete protective layer pad, characterized in that, include: A pad (100) has a lower reinforcing bar groove (101) and an upper reinforcing bar groove (102) on one side. The upper reinforcing bar groove (102) is located above the lower reinforcing bar groove (101) and intersects the lower reinforcing bar groove (101) perpendicularly, dividing this side of the pad (100) into four regions. Each region has an insertion hole (103). Insert rod (200), the insert rod (200) includes two n-shaped rods, the crossbars of the two n-shaped rods are connected to each other, and the four lower ends of the two n-shaped rods correspond one-to-one with the insertion holes (103) in the four regions.

2. The concrete protective layer pad block according to claim 1, characterized in that, The insertion holes (103) in the four regions are centrally symmetrical about the intersection center point of the upper rebar groove (102) and the insertion hole (103).

3. The concrete protective layer pad block according to claim 2, characterized in that, The crossbars of the two n-shaped bars are perpendicularly connected at their centers.

4. The concrete protective layer pad block according to claim 1, characterized in that, The length of the vertical rod in the two n-shaped rods is the same as the depth of the jack (103).

5. The concrete protective layer pad block according to claim 1, characterized in that, The depth of the lower reinforcing bar groove (101) is twice the depth of the upper reinforcing bar groove (102).

6. The concrete protective layer pad block according to claim 1, characterized in that, The bottom of both the lower reinforcing bar groove (101) and the upper reinforcing bar groove (102) are semi-circular.

7. The concrete protective layer pad block according to claim 1, characterized in that, Both the pad (100) and the insert (200) are made of steel.

Citation Information

Patent Citations

  • Concrete protective layer cushion block

    CN206957068U