A reinforced cage protection layer concrete cushion block

Abstract

The utility model relates to the technical field of reinforcement cage construction, and specifically discloses a reinforcement cage protective layer concrete cushion block. It comprises a cushion block body, the cushion block body includes first cylinder and second cylinder which are arranged orthogonally, the first main hole of space cross structure is equipped with in the center of cushion block body, the second main hole which passes through the first main hole and is perpendicular to the first main hole is equipped on the second cylinder, the first main hole and the second main hole can be inserted and matched with the stirrup, and different installation states are formed according to the protective layer thickness. The space cross design of the first cylinder and the second cylinder enhances the overall structure rigidity through geometric symmetry, disperses external load, avoids stress concentration, is higher in strength, the first main hole and the second main hole are inserted and matched, the cushion block body is allowed to switch the installation direction by rotating 90 DEG, directly corresponds to the different protective layer thickness demand, need not prefabricate multiple specifications, and the storage and management cost are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of steel cage construction technology, and more specifically, to a concrete pad for the protective layer of a steel cage. Background Technology

[0002] Concrete spacers for the protective layer of reinforcing cages play a crucial role in building construction, ensuring accurate positioning of the reinforcing cages and improving the stability and seismic performance of the structure.

[0003] Traditional concrete blocks are mostly square or cylindrical in shape. Although they can provide basic support, their structural dimensions are mostly fixed, making them less suitable for concrete protective layers of steel cages of different thicknesses. Utility Model Content

[0004] This utility model provides a concrete pad for the protective layer of a reinforcing cage, which can overcome some or all the defects of the prior art.

[0005] According to this utility model, a concrete pad for the protective layer of a reinforcing cage includes a pad body disposed on the side stirrups of the reinforcing cage; the pad body includes a first cylinder and a second cylinder arranged orthogonally to each other, the first cylinder being rotated 90° along its diameter axis to form a spatial intersection structure with the second cylinder; the center of the pad body is provided with a first main hole penetrating the spatial intersection structure, and the second cylinder is provided with a second main hole penetrating the first main hole and perpendicular to the first main hole; both the first main hole and the second main hole can be inserted and matched with the stirrups, forming different installation states corresponding to the protective layer thickness.

[0006] Through this invention, the spatial intersection design of the first and second cylinders enhances the overall structural rigidity through geometric symmetry, disperses external loads, avoids stress concentration, and achieves higher strength; the plug-in design of the first and second main holes allows the pad body to switch the installation direction by rotating 90°, directly corresponding to different protective layer thickness requirements, eliminating the need for prefabrication of multiple specifications, and significantly reducing storage and management costs; the installation of the stirrup plug-in simplifies the operation process, and workers do not need to tie or weld, and can complete the fixation with a single insertion, saving installation time.

[0007] Preferably, when the first main hole is inserted and connected with the stirrup, a first installation state is formed. At this time, the maximum radial dimension of the outer surface of the first cylinder and the second cylinder is equal to the design thickness of the protective layer of the steel cage, and the pad block body can rotate freely around the stirrup.

[0008] With this invention, the maximum radial dimensions of the first and second cylinders are equal to the designed protective layer thickness. The outer edge of the pad naturally forms a positioning reference surface, which directly abuts against the steel casing during concrete pouring, eliminating deviations and ensuring the thickness of the protective layer. The pad body can rotate freely, preventing the rebar cage from getting stuck during lowering and facilitating construction. During installation, strict alignment is not required; workers only need to insert the stirrups into the first main hole to complete the rough positioning, reducing reliance on operator skills. Compared with traditional direction-fixed pads, this invention improves construction efficiency and is suitable for poor visibility conditions such as nighttime or areas with high-density rebar.

[0009] Preferably, when the second main hole is inserted and connected with the stirrup, a second installation state is formed. At this time, the maximum radial dimension of the outer surface of the first cylinder and the second cylinder is greater than the design thickness of the protective layer, and the edge dimension of the spatial cross structure is less than the design thickness of the protective layer. The pad block body rotates within a certain angle range.

[0010] With this invention, the maximum radial dimension of the outer surface of the first cylinder and the second cylinder is greater than the designed protective layer thickness, while the length of the side line of the spatial intersecting structure is less than the protective layer thickness. In the second installation state, the maximum dimension of the outer surface of the first cylinder and the second cylinder serves as the upper limit of the protective layer thickness, and the length of the side line of the intersecting structure serves as the lower limit, ensuring minimum effective protective layer coverage. Within a certain range, this design can effectively protect the protective layer for different designed protective layer thicknesses. The pad block body can rotate within a certain angle range to prevent the steel cage from getting stuck during the lowering process, facilitating construction.

[0011] Preferably, the first and second main holes have the same diameter and form a clearance fit with the diameter of the reinforcing cage stirrups.

[0012] With this invention, the first and second main holes have the same diameter and are fitted with the stirrups of the reinforcing cage with a gap, which ensures a stable fixation while allowing the pad body to rotate with the stirrups of the reinforcing cage, preventing the reinforcing cage from getting stuck during the lowering process; the gap fit also facilitates the installation by construction personnel and improves the installation speed.

[0013] Preferably, the pad block body is multiple and evenly distributed on the side stirrups of the steel cage.

[0014] This invention allows for the even distribution of multiple pad blocks to disperse the lateral pressure on the reinforcing cage during concrete pouring, preventing localized stress concentration and reducing the risk of deformation or displacement of the reinforcing cage. The symmetrically arranged pad blocks can better balance the position of the reinforcing cage in the concrete, preventing displacement caused by vibration or flowing concrete during pouring, ensuring that each side of the reinforcing cage is equidistant from the formwork, avoiding localized excessively thin or thick protective layers, and meeting design specifications.

[0015] Preferably, the block body is made of C60 concrete.

[0016] Through this invention, C60 concrete has high compressive and impact strength, can withstand the impact and collision of the lowering of the reinforcing cage, avoids the crushing and failure of the pad block body, and ensures the stability of the protective layer thickness. Attached Figure Description

[0017] Figure 1 Schematic diagram of the reinforcing cage and spacers;

[0018] Figure 2 This is a schematic diagram of the pad block body;

[0019] Figure 3 This is a schematic diagram of the pad block body in its first installed state;

[0020] Figure 4 This is a side view of the pad block body in its first installed state;

[0021] Figure 5 This is a schematic diagram of the pad block body in the second installation state;

[0022] Figure 6 This is a schematic diagram showing the maximum protective layer thickness corresponding to the second installation state of the pad block body;

[0023] Figure 7 This is a schematic diagram showing the minimum protective layer thickness corresponding to the second installation state of the pad block body. Detailed Implementation

[0024] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0025] Example 1

[0026] like Figure 1-7 As shown, this embodiment provides a concrete spacer for the protective layer of a reinforcing cage, which includes a spacer body 100, which is disposed on the side stirrups 120 of the reinforcing cage 110. The spacer body 100 includes a first cylinder 210 and a second cylinder 220 arranged orthogonally to each other. The first cylinder 210 rotates 90° along its diameter axis and forms a spatial intersection structure 230 with the second cylinder 220. The center of the spacer body 100 is provided with a first main hole 240 that penetrates the spatial intersection structure 230. The second cylinder 220 is provided with a second main hole 250 that passes through the first main hole 240 and is perpendicular to the first main hole 240. Both the first main hole 240 and the second main hole 250 can be inserted and matched with the stirrups 120, forming different installation states corresponding to the thickness of the protective layer 130.

[0027] In this embodiment, the spatial intersection design of the first cylinder 210 and the second cylinder 220 enhances the overall structural rigidity through geometric symmetry, disperses external loads, avoids stress concentration, and achieves higher strength. The plug-in design of the first main hole 240 and the second main hole 250 allows the pad body 100 to switch the installation direction by rotating 90°, directly corresponding to the different thickness requirements of the protective layer 130, without the need for prefabrication of multiple specifications, which greatly reduces storage and management costs. The plug-in installation of the stirrups 120 simplifies the operation process. Workers do not need to tie or weld; a single insertion is sufficient to complete the fixation, saving installation time.

[0028] In this embodiment, when the first main hole 240 is inserted into the stirrup 120, a first installation state is formed. At this time, the maximum radial dimension of the outer cylindrical surface of the first cylinder 210 and the second cylinder 220 is equal to the design thickness of the protective layer 130 of the steel cage 110, and the pad body 100 can rotate freely around the stirrup 120.

[0029] In this embodiment, the maximum radial dimension of the first cylinder 210 and the second cylinder 220 is equal to the thickness of the designed protective layer 130. The outer edge of the pad body 100 naturally forms a positioning reference surface, which directly abuts against the steel casing 310 during concrete pouring, eliminating deviation and ensuring the thickness of the protective layer 130. The pad body 100 can rotate freely to prevent the rebar cage 110 from getting stuck during the lowering process, facilitating construction. During installation, there is no need for strict alignment. Workers only need to insert the stirrups 120 into the first main hole 240 to complete the rough positioning, reducing reliance on operator skills. Compared with traditional directional fixed pads, it improves construction efficiency and is suitable for working conditions with poor visibility, such as at night or in areas with high-density rebar.

[0030] In this embodiment, when the second main hole 250 is inserted and engaged with the stirrup 120, a second installation state is formed. At this time, the maximum radial dimension of the outer surface of the first cylinder 210 and the second cylinder 220 is greater than the designed thickness of the protective layer 130, and the dimension of the edge 320 of the spatial cross structure 230 is less than the designed thickness of the protective layer 130. The pad body 100 rotates within a certain angle range.

[0031] In this embodiment, the maximum radial dimension of the outer surface of the first cylinder 210 and the second cylinder 220 is greater than the designed thickness of the protective layer 130, while the length of the edge 320 of the spatial cross structure 230 is less than the thickness of the protective layer 130. In the second installation state, the maximum dimension of the outer surface of the first cylinder 210 and the second cylinder 220 serves as the upper limit of the thickness of the protective layer 130, and the length of the edge 320 of the cross structure serves as the lower limit, ensuring that the minimum effective protective layer 130 is covered. Within a certain range, different designed thicknesses of the protective layer 130 are corresponding to this design, and all of these designs can achieve effective protection of the protective layer 130. The pad block body 100 rotates within a certain angle range to prevent the steel cage 110 from getting stuck during the lowering process, which facilitates construction.

[0032] In this embodiment, the first main hole 240 and the second main hole 250 have the same diameter and form a clearance fit with the diameter of the stirrups 120 of the reinforcing cage 110.

[0033] In this embodiment, the first main hole 240 and the second main hole 250 are of the same diameter and are fitted with the stirrups 120 of the reinforcing cage 110 with a clearance fit. This ensures that the fixing is stable and allows the pad body 100 to rotate with the stirrups 120 of the reinforcing cage 110, preventing the reinforcing cage 110 from getting stuck during the lowering process. The clearance fit also facilitates the installation by construction personnel and improves the installation speed.

[0034] In this embodiment, the pad block body 100 is multiple and evenly distributed on the side stirrups 120 of the steel cage 110.

[0035] In this embodiment, the even distribution of multiple pad blocks 100 can disperse the lateral pressure on the reinforcing cage 110 during concrete pouring, avoid local stress concentration, and reduce the risk of deformation or displacement of the reinforcing cage 110. The symmetrically arranged pad blocks 100 can better balance the position of the reinforcing cage 110 in the concrete, prevent displacement caused by vibration or flowing concrete during pouring, ensure that each side of the reinforcing cage 110 is equidistant from the formwork, and avoid the protective layer 130 being too thin or too thick in some areas, thus meeting the design specifications.

[0036] In this embodiment, the pad block body 100 is made of C60 concrete.

[0037] Through this embodiment, C60 concrete has high compressive and impact strength, can withstand the impact of the lowering of the reinforcing cage 110, avoids crushing and failure of the pad block body 100, and ensures the stability of the protective layer 130 thickness.

[0038] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0039] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A concrete pad for the protective layer of a reinforcing cage, characterized in that, include: The pad block body (100) is located on the side stirrups (120) of the steel cage (110); The pad body (100) includes a first cylinder (210) and a second cylinder (220) arranged orthogonally to each other. The first cylinder (210) rotates 90° along its diameter axis and forms a spatial intersection structure (230) with the second cylinder (220). The pad body (100) has a first main hole (240) that passes through the spatial intersection structure (230) at its center. The second cylinder (220) has a second main hole (250) that passes through the first main hole (240) and is perpendicular to the first main hole (240). Both the first main hole (240) and the second main hole (250) can be inserted and matched with the stirrup (120) to form different installation states corresponding to the thickness of the protective layer (130).

2. The concrete pad for the protective layer of a reinforcing cage according to claim 1, characterized in that: When the first main hole (240) is inserted and connected with the stirrup (120), the first installation state is formed. At this time, the maximum radial dimension of the outer surface of the first cylinder (210) and the second cylinder (220) is equal to the design thickness of the protective layer (130) of the steel cage (110), and the pad body (100) can rotate freely around the stirrup (120).

3. The concrete pad for the protective layer of a reinforcing cage according to claim 1, characterized in that: When the second main hole (250) is inserted and matched with the stirrup (120), a second installation state is formed. At this time, the maximum radial dimension of the outer surface of the first cylinder (210) and the second cylinder (220) is greater than the design thickness of the protective layer (130), and the dimension of the edge line (320) of the spatial cross structure (230) is smaller than the design thickness of the protective layer (130). The pad body (100) rotates within a certain angle range.

4. A concrete pad for the protective layer of a reinforcing cage according to claim 1, characterized in that: The first main hole (240) and the second main hole (250) have the same diameter and form a clearance fit with the diameter of the stirrups (120) of the steel cage (110).

5. A concrete pad for the protective layer of a reinforcing cage according to claim 1, characterized in that: The pad block body (100) consists of multiple blocks that are evenly distributed on the side stirrups (120) of the steel cage (110).

6. A concrete pad for the protective layer of a reinforcing cage according to claim 1, characterized in that: The block body (100) is made of C60 concrete.

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