Concrete cushion block with steel bar protective layer

Abstract

The utility model relates to the technical field of building construction, in particular to a reinforced protective layer concrete cushion block. The cushion block comprises a cushion block body, a reinforcing steel bar penetrating hole is formed in the center of the cushion block body, the cushion block body comprises two cushion block units which are spliced with each other, a meshing structure is arranged at the splicing edge of the two cushion block units, and the peripheral face of the cushion block body is sleeved with a holding belt. A U-shaped groove with a downward opening is formed in the position, away from the steel bar penetrating hole, of the cushion block body, the U-shaped groove stretches across the two cushion block units, and a U-shaped buckle is arranged in the U-shaped groove in a penetrating mode. The cushion block body is composed of the two cushion block units which are spliced with each other, the installation efficiency is greatly improved, the construction difficulty is reduced, the connection strength of the two parts is enhanced through the meshing structure, the cushion block is further fixed through the holding belts, the cushion block is tightly attached to the steel bars, displacement is avoided, and the cushion block and the steel bars can be further locked through the design of the U-shaped grooves and the U-shaped buckles. And the position stability of the cushion block in the construction process is ensured.

Description

Technical Field

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

[0002] In the construction of cast-in-place piles, the installation of spacers is a crucial step in ensuring the thickness of the concrete cover for the reinforcing bars.

[0003] Existing spacer block designs mainly include plum blossom spacers, round spacers, open round spacers, snap-on open round spacers, gear spacers, and conical spacers. However, these traditional spacers have revealed many defects in actual use, seriously affecting construction efficiency and project quality.

[0004] From an installation convenience perspective, round and gear-shaped spacers require workers to insert a sufficient number of spacers into one end of the rebar at once before binding the rebar. This operation is not only time-consuming and labor-intensive, but also requires workers to have accurate estimation skills; otherwise, it is easy to have insufficient or excessive spacers, affecting the construction progress. While open-type round, quincunx, and conical spacers use wire binding to fix the rebar, the wire must not extend into the protective layer, which undoubtedly increases the difficulty and complexity of construction and places higher demands on the technical proficiency of the workers.

[0005] Meanwhile, if circular pads and gear pads are damaged during construction, the replacement operation is extremely difficult due to the special nature of their installation method. It requires construction personnel to spend a lot of time and energy, and may even cause some damage to the completed steel reinforcement binding structure, thereby affecting the stability of the entire project.

[0006] Therefore, designing a rebar protective layer spacer that is easy to install and replace is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a concrete spacer for the protective layer of steel bars. The spacer body is composed of two spacer units spliced ​​together, which greatly improves the installation efficiency and reduces the construction difficulty. The interlocking structure enhances the connection strength between the two parts, and the clamping strap further fixes the spacer, making it closely fit the steel bar and preventing displacement. The design of U-shaped groove and U-shaped buckle can further lock the spacer to the steel bar and ensure the stability of the spacer position during construction.

[0008] To address the aforementioned technical problems, the present invention provides a concrete spacer for reinforcing steel protective layer, comprising a spacer body, wherein a reinforcing steel through hole is provided in the center of the spacer body, the spacer body comprises two spacer units spliced ​​together, an interlocking structure is provided at the splicing edge of the two spacer units, a retaining band is provided on the periphery of the spacer body, and a U-shaped groove with an opening facing downward is provided on the spacer body, avoiding the position of the reinforcing steel through hole, the U-shaped groove spans the two spacer units, and a U-shaped buckle is provided through the U-shaped groove.

[0009] Furthermore, both the splicing edge and the interlocking structure are coated with an adhesive layer.

[0010] Furthermore, the interlocking structure includes a dovetail groove and a trapezoidal block adapted to the dovetail groove.

[0011] Furthermore, the interlocking structure is arranged symmetrically in two sets with the steel bar perforation as the center.

[0012] Furthermore, two sets of U-shaped grooves are symmetrically arranged with the rebar perforation as the center.

[0013] Furthermore, the circumferential surface of the pad body is provided with an annular groove, and the clamping strap is sleeved in the annular groove.

[0014] Furthermore, the pad body is disc-shaped.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) The spacer block body consists of two interlocking spacer block units. Unlike circular spacer blocks and gear spacer blocks, which need to be inserted into the rebar before binding, construction workers can directly splice the two spacer block units onto the rebar after binding, greatly improving installation efficiency and reducing construction difficulty. The interlocking structure of the splicing edges of the spacer block units enhances the connection strength between the two parts, preventing the spacer block from separating during use. The clamping straps on the circumference further fix the spacer block, making it fit tightly against the rebar and preventing displacement. The design of the U-shaped groove and U-shaped buckle can further lock the spacer block to the rebar, ensuring the stability of the spacer block position during construction and ensuring the accuracy of the rebar protective layer thickness. If the spacer block is damaged, it can be replaced simply by unfastening the U-shaped buckle and clamping strap and separating the two spacer block units, without damaging the completed rebar binding structure, greatly improving the convenience of replacement and reducing the impact on project progress and stability.

[0017] (2) Applying an adhesive layer to the splicing edge and interlocking structure further enhances the connection between the two pad units, prevents the pad units from separating due to construction vibration or other external forces, ensures that the pads remain intact throughout the construction process, and effectively guarantees the stability of the steel reinforcement protective layer.

[0018] (3) The dovetail groove and trapezoidal block are used to form an interlocking structure, which has good anti-detachment properties.

[0019] (4) A ring groove is provided on the circumference of the pad block body, and the clamping strap is sleeved in the ring groove. This can make the position of the clamping strap more fixed and prevent the clamping strap from sliding on the circumference of the pad block, thereby more effectively fixing the pad block to the reinforcing bar and ensuring the accuracy and stability of the pad block installation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the separated state of the pad body in Embodiment 1 of this utility model.

[0021] Figure 2 This is a schematic diagram of the overall structure of the pad body in Embodiment 1 of this utility model.

[0022] Figure 3 This is a top view of the concrete pad block (without clamping straps) for the steel reinforcement protective layer in Embodiment 1 of this utility model.

[0023] Figure 4 yes Figure 3 A cross-sectional view from the perspective of AA.

[0024] Figure 5 This is a top view of the concrete pad (with clamping strap) for the steel reinforcement protective layer in Embodiment 1 of this utility model.

[0025] Figure 6 This is a front view of the concrete pad block for the steel reinforcement protective layer in Embodiment 1 of this utility model.

[0026] In the diagram: 1. Pad body; 2. Pad unit; 3. Clamping strap; 4. U-shaped groove; 5. Inverted L-shaped groove; 6. U-shaped buckle; 7. Adhesive layer; 8. Dovetail groove; 9. Trapezoidal block; 10. Ring groove; 11. Rebar perforation; 12. Semicircular hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings: Specific Implementation Example 1:

[0029] refer to Figures 1 to 6 This utility model discloses a concrete spacer block for reinforcing steel protective layer (hereinafter referred to as spacer block), which includes a spacer block body 1, and a reinforcing steel through hole 11 is provided in the center of the spacer block body 1. Specifically, the spacer block body 1 includes two spacer block units 2 spliced ​​together, and the opposite sides of the two spacer block units 2 are splicing edges. A semi-circular hole 12 is provided in the center of the splicing edge. After the two spacer block units 2 are spliced ​​together, the two semi-circular holes 12 form the reinforcing steel through hole 11.

[0030] In this embodiment, an interlocking structure is also provided at the splicing edge of the two pad block units 2. The interlocking structure avoids the position of the steel bar through hole 11 and uses the interlocking structure to achieve splicing and fixing of the two pad block units 2. A clamping band 3 is sleeved on the circumferential surface of the pad block body 1. The clamping band 3 clamps and fixes the two pad block units 2 tightly, maintaining the shape of the pad block body 1.

[0031] Meanwhile, a downward-facing U-shaped groove 4 is provided on the pad block body 1, avoiding the rebar through hole 11. The U-shaped groove 4 spans two pad block units 2, and a U-shaped buckle 6 passes through the U-shaped groove 4. The U-shaped buckle 6 is arranged entirely within the U-shaped groove 4 to prevent interference between the pad blocks passing through the rebar. Specifically, as shown... Figure 4 As shown, inverted L-shaped grooves 5 are symmetrically arranged on the two pad block units 2. The two inverted L-shaped grooves 5 are spliced ​​together to form the above-mentioned U-shaped groove 4. U-shaped buckles 6 are inserted into the U-shaped groove 4 to fasten the two pad block units 2 together.

[0032] This design, where the main body 1 of the spacer block is composed of two interlocking spacer block units 2, eliminates the need for inserting it into the rebar before binding, unlike circular or gear-shaped spacer blocks. Construction workers can directly splice the two spacer block units 2 onto the rebar after binding, significantly improving installation efficiency and reducing construction difficulty. The interlocking structure at the splicing edges of the spacer block units 2 enhances the connection strength between the two parts, preventing the spacer blocks from separating during use. The retaining straps 3 fitted around the perimeter further secure the spacer blocks, ensuring a tight fit against the rebar and preventing displacement.

[0033] The design of the U-shaped groove 4 and U-shaped buckle 6 further locks the spacer block to the rebar, ensuring the stability of the spacer block position during construction and guaranteeing the accurate thickness of the rebar protective layer. If the spacer block is damaged, it can be replaced simply by unfastening the U-shaped buckle 6 and the clamping strap 3 and separating the two spacer block units 2. This will not damage the completed rebar binding structure, greatly improving the convenience of replacement and reducing the impact on project progress and stability.

[0034] Preferably, in this embodiment, two sets of U-shaped grooves 4 are symmetrically arranged around the rebar through-hole 11. Two U-shaped clips 6 can be used for fixing, which further enhances the connection strength between the pad and the rebar, prevents the pad from rotating or sliding during construction, and ensures that the pad can stably play its role in protecting the rebar.

[0035] Preferably, in this embodiment, such as Figure 1 As shown, adhesive layer 7 is coated on the splicing edges and interlocking structure of the two pad block units 2 on opposite sides. This setting further enhances the connection between the two pad block units 2, prevents the pad block units 2 from separating due to construction vibration or other external forces, ensures that the pad blocks remain intact throughout the construction process, and effectively guarantees the stability of the steel reinforcement protective layer.

[0036] Preferably, in this embodiment, the interlocking structure includes a dovetail groove 8 and a trapezoidal block 9 adapted to the dovetail groove 8. Specifically, as shown... Figure 1 As shown, one pad unit 2 has a dovetail groove 8 at its position, and the other pad unit 2 has a trapezoidal block 9 at its corresponding position. The two pad units 2 are fixed by the engagement of the dovetail groove 8 and the trapezoidal block 9, and have good anti-detachment properties. In other embodiments, the engagement structure can also be a gear structure respectively set on the splicing edge of the two pad units 2, and the two gear structures are engaged to lock the pads together.

[0037] Preferred, such as Figure 1 , 2 As shown, in this embodiment, two sets of interlocking structures are symmetrically arranged around the rebar through hole 11. Specifically, on the splicing edge of each pad unit 2, a dovetail groove 8 and a trapezoidal block 9 are respectively provided on both sides of the semicircular hole 12, thus symmetrically arranging two sets of interlocking structures on the entire pad body 1. Of course, in other embodiments, two dovetail grooves 8 can also be symmetrically arranged on one pad unit 2, and two trapezoidal blocks 9 can be correspondingly arranged on the other unit to achieve interlocking fixation.

[0038] This configuration, with two sets of interlocking structures symmetrically arranged around the rebar hole 11, makes the force on the spacer more uniform, preventing the spacer from tilting or shifting due to uneven force, ensuring a uniform thickness of the rebar protective layer, and improving project quality.

[0039] Preferably, in this embodiment, the pad body 1 is disc-shaped. This shape offers better versatility in actual construction, adapting to the protection needs of reinforcing bars of different diameters. Simultaneously, the disc-shaped structure facilitates processing, manufacturing, and installation, improving construction efficiency. The circumferential surface of the pad body 1 is provided with an annular groove 10, within which the clamping strap 3 is fitted. This ensures the clamping strap 3 remains more firmly in place, preventing it from sliding on the pad's circumferential surface, thus more effectively fixing the pad to the reinforcing bar and ensuring the accuracy and stability of the pad installation.

[0040] The working process of this application:

[0041] During installation, two semi-circular pad units 2 are attached to the main concrete reinforcement through their semi-circular holes 12, and then slidably connected along the direction of the main reinforcement. Trapezoidal blocks 9 slide through the corresponding dovetail grooves 8 to form a circular pad body. U-shaped clips 6 are inserted into the U-shaped grooves 4 of the pad body, and a retaining strap 3 is fitted into the annular grooves 10 on the outer periphery of the pad body to achieve installation and fixation. The dimensions of the pads are determined based on the diameter of the reinforcing bars and the thickness of the protective layer.

[0042] This design makes it easy to install the spacers on the reinforcing bars and to replace broken spacers. In addition, the materials used in the entire spacer assembly, such as wire ties and plastic clips, eliminate any potential hazards.

[0043] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0044] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A reinforced concrete pad characterized by, The cushion block body is provided with a steel bar through hole in the center, and comprises two cushion block units which are spliced with each other, and the spliced edges of the two cushion block units are provided with a clamping structure, a clamping belt is sleeved on the peripheral surface of the cushion block body, a U-shaped slot is arranged on the cushion block body in a position avoiding the steel bar through hole, the U-shaped slot spans the two cushion block units, and a U-shaped buckle is arranged in the U-shaped slot.

2. The steel formwork concrete pad according to claim 1, wherein, The spliced edges and the clamping structure are both coated with a glue layer.

3. The ferroconcrete pad according to claim 1, characterized in that, The clamping structure comprises a dovetail groove and a trapezoidal block matched with the dovetail groove.

4. The ferroconcrete pad according to claim 3, characterized in that The clamping structure is symmetrically arranged in two groups with the steel bar through hole as the center.

5. The ferroconcrete pad according to claim 1, characterized in that, The U-shaped slot is symmetrically arranged in two groups with the steel bar through hole as the center.

6. The ferroconcrete pad according to claim 1, characterized in that The peripheral surface of the cushion block body is provided with a ring groove, and the clamping belt is sleeved in the ring groove.

7. The ferroconcrete pad according to claim 1, characterized in that The cushion block body is disc-shaped.

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