Novel cement-based cushion block suitable for reinforced concrete structure

Abstract

The utility model provides a novel cement-based cushion block suitable for a reinforced concrete structure, which comprises an open-type circular-ring-shaped cement-based cushion block main body prefabricated by adopting a cement-based material, and an open-type circular-ring-shaped spring piece which is made of a stainless steel material, is concentric with the cement-based cushion block main body and is consistent with the cement-based cushion block main body in opening position, the spring pieces are embedded and fixed to the cement-based cushion block body through elastic tension, inward barbs are arranged on the edges of openings of the spring pieces, the distance between the barbs is smaller than the diameter of steel bars and is designed in a gradient mode according to the diameter of the steel bars, and the height of the spring pieces is not larger than the thickness of the cement-based cushion block body. The novel cement-based cushion block is high in adaptability and can adapt to steel bars of different specifications; fixing is reliable, and the cushion block can be prevented from shifting during concrete pouring; compared with a traditional structure, installation is rapid; the material is excellent in performance, high in strength and corrosion-resistant; the structural design is reasonable, concrete construction is not affected, and the quality and durability of the reinforced concrete structure are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of building component technology, and more specifically, to a novel cement-based pad block suitable for reinforced concrete structures. Background Technology

[0002] The concrete cover for reinforced concrete structures is a crucial factor in ensuring the durability and safety of these structures. The concrete cover effectively isolates the reinforcing bars from water, oxygen, and corrosive media (such as chloride ions), providing corrosion and rust protection. It also delays softening of the reinforcing bars at high temperatures, maintains structural stability, and ensures the structure's fire resistance. The concrete cover bonds and anchors the concrete to the reinforcing bars, ensuring they share the load. In engineering practice, the thickness of the concrete cover has become a weak point in the acceptance of reinforced concrete structures. Issues include deviations in reinforcing bar positioning, insufficient or uneven cover thickness, insufficient or misplaced spacers, and even the use of plastic spacers leading to significant fluctuations in cover thickness. Over time, the reinforcing bars corrode due to factors such as humidity, freeze-thaw cycles, loads, impacts, and vibrations, resulting in hollow areas and cracks on the structural surface, severely impacting the structure's safety and durability.

[0003] Furthermore, some existing spacer structures that use clips at the openings to secure the reinforcing bars are rather cumbersome to install. Construction workers need to spend considerable time aligning and securing the clips, which slows down construction and impacts project progress. Utility Model Content

[0004] The purpose of this invention is to provide a new type of cement-based pad block suitable for reinforced concrete structures to solve the above-mentioned technical problems.

[0005] The solution adopted by this utility model to solve the technical problem is: a new type of cement-based pad block suitable for reinforced concrete structures, including a cement-based pad block body and a spring sheet nested and fixed thereon;

[0006] The cement-based pad block has an open-type circular structure, and the opening of the pad block is used for installation onto the reinforcing bars of the reinforced concrete structure.

[0007] The spring sheet is an open-type ring structure concentric with the main body of the cement-based pad block. The opening position of the spring sheet is consistent with the main body of the cement-based pad block, and the edge of the opening of the spring sheet is provided with an inward barb.

[0008] Furthermore, the spring sheet is nested and fixed to the cement-based pad body by elastic tension, and the spacing of the barbs is designed according to the gradient of the steel bar diameter.

[0009] Furthermore, the height of the spring sheet is not greater than the thickness of the cement-based pad block body.

[0010] Furthermore, the main body of the cement-based pad block is prefabricated using cement-based materials.

[0011] Furthermore, the spring sheet is made of stainless steel.

[0012] Beneficial effects:

[0013] 1. Strong adaptability: The spacing of the barbs on the edge of the spring sheet is designed according to the gradient of the steel bar diameter, which makes this new type of cement-based spacer block widely adaptable to steel bars of different specifications. During construction, there is no need to prepare spacers of different specifications for different steel bars, which reduces construction costs and improves construction efficiency.

[0014] 2. Reliable Fixation: The spring sheet is nested and fixed to the main body of the cement-based pad through elastic tension. The barb can deform and continue to fold inward due to external force, thus successfully locking onto the reinforcing bar. After being locked into the reinforcing bar, the barb returns to its original shape. Since the spacing between the barbs is smaller than the diameter of the reinforcing bar, it can provide reliable fixing force. During concrete pouring, it can effectively resist the action of external forces such as vibration. Under the action of elastic force, the two barbs can form a protruding limiting structure with the transverse ribs on the surface of the reinforcing bar, preventing the pad from rotating or shifting, ensuring the uniformity and accuracy of the thickness of the reinforcing bar protective layer, thereby improving the quality and durability of the reinforced concrete structure.

[0015] 3. Easy installation: Compared with the existing structure that sets clips at the opening, the installation is made by the elastic deformation of the barb, which is simpler and faster. Construction workers do not need to spend a lot of time aligning and fixing the clips. The pad can be directly and quickly installed on the steel bar, which greatly shortens the construction time and improves the construction efficiency.

[0016] 4. Excellent material performance: The spring sheet is made of stainless steel, which has good corrosion resistance and can maintain stable performance in complex environments for a long time, extending the service life of the pad and reducing later maintenance costs.

[0017] 5. Reasonable structural design: The height of the spring sheet is no greater than the thickness of the cement-based pad block, which ensures the regularity of the pad block after installation, does not affect the concrete pouring and surface flatness, and at the same time provides better protection for the spring sheet, avoiding direct damage from the outside. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0019] Figure 2 A top view of the present invention is shown;

[0020] In the attached diagram, 1 is the main body of the cement-based pad, 2 is the spring sheet, 3 is the round hole, 4 is the opening of the pad, and 5 is the barb. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] like Figures 1-2 The invention relates to a novel cement-based pad block suitable for reinforced concrete structures, comprising a cement-based pad block body 1 and a spring sheet 2 nested and fixed thereon. This unique combination structure aims to integrate the advantages of both, effectively solve a series of problems existing in traditional cement-based pad blocks, and provide more reliable support and positioning for reinforced concrete structures.

[0023] Cement-based spacer block body 1: The cement-based spacer block body 1 is prefabricated from cement-based materials. Its shape is an open-type circular ring structure, that is, the center is a circular hole 3, and the spacer block opening 4 is a straight opening. The spacer block opening 4 is connected to the central circular hole 3. The setting of the spacer block opening 4 allows the spacer block to be easily installed on the steel bars of the reinforced concrete structure. This open-type circular ring structure not only facilitates construction operations, but also forms a uniform support force around the steel bars after installation, ensuring that the protective layer thickness still meets the requirements even if the cement-based spacer block body 1 rolls due to external disturbances, which helps to maintain the positional stability of the steel bars in the concrete.

[0024] In addition, the precast cement-based pad block 1 has high strength and good durability, and can withstand the pressure during concrete pouring and the load during the use of the structure. It is not easy to break or be damaged, and provides a solid and reliable support foundation for the steel reinforcement.

[0025] Spring Plate 2: Spring Plate 2 is an open-type circular structure concentric with the cement-based pad body 1. The opening position of Spring Plate 2 is consistent with that of the cement-based pad body 1. This design ensures the structural synergy between Spring Plate 2 and the cement-based pad body 1, allowing them to fit together tightly. Spring Plate 2 is made of stainless steel, which has excellent corrosion resistance and elasticity. It can maintain stable performance for a long time in complex environments such as humidity and acid / alkali, and is not easy to rust or corrode, thus significantly extending the service life of the entire pad. Spring Plate 2 is nested and fixed to the cement-based pad body 1 through elastic tension. This fixing method not only ensures the stability of the connection between Spring Plate 2 and the cement-based pad body 1, but also facilitates operation during installation and use.

[0026] Specifically, the spring plate 2 has inwardly pointing barbs 5 on its edge, located at the opening of the spring plate 2. The spacing of these barbs 5 is smaller than the diameter of the reinforcing bar, and is designed in a gradient manner according to the diameter of the reinforcing bar. When the spacer is installed, the barbs 5 can deform and continue to fold inward under the action of external force, thus successfully locking onto the reinforcing bar. After the reinforcing bar is locked in, the barbs 5 return to their original position. Because the spacing of the barbs 5 is smaller than the diameter of the reinforcing bar, they can firmly lock onto the reinforcing bar and will not fall off. Compared with the existing structure that sets a clip at the opening 4 of the spacer, this design is faster and more convenient to install. At the same time, the height of the spring plate 2 is not greater than the thickness of the cement-based spacer body 1. This size design can ensure that the entire spacer has a neat appearance after being installed on the reinforcing bar, and will not affect the pouring of concrete and the surface flatness due to the excessive height of the spring plate 2. It can also better hide the spring plate 2 inside the cement-based spacer body 1, avoiding direct damage from external factors during use.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel cement-based pad block suitable for reinforced concrete structures, characterized in that, It includes a cement-based pad block body (1) and a spring sheet (2) nested and fixed thereon; The cement-based pad block body (1) is an open-type circular structure, and its pad block opening (4) is used to be installed on the reinforcing bars of the reinforced concrete structure; The spring sheet (2) is an open-type ring structure concentric with the cement-based pad body (1). The opening position of the spring sheet is consistent with the cement-based pad body (1), and the edge of the opening of the spring sheet is provided with an inward barb.

2. The novel cement-based pad block for reinforced concrete structures according to claim 1, characterized in that, The spring sheet (2) is nested and fixed to the cement-based pad block body (1) by elastic tension, and the spacing of the barbs is designed according to the gradient of the steel bar diameter.

3. The novel cement-based pad block for reinforced concrete structures according to claim 1, characterized in that, The height of the spring sheet (2) is not greater than the thickness of the cement-based pad block body (1).

4. The novel cement-based pad block for reinforced concrete structures according to claim 1, characterized in that, The main body (1) of the cement-based pad block is made of cement-based material.

5. The novel cement-based pad block for reinforced concrete structures according to claim 1, characterized in that, The spring sheet (2) is made of stainless steel.

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