Self-buckling type fast-assembly reinforcing steel bar protective layer cushion block

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a self-buckling type fast-assembly reinforcing steel bar protective layer cushion block. A main body of the cushion block is a cushion block body provided with a reserved through hole used for containing a reinforcing steel bar, and the cushion block body is further provided with a mounting groove allowing the reinforcing steel bar to pass through and enter the reserved through hole. And the clamping block assembly is used for filling the mounting groove. Through the arrangement of the clamping block assembly and the installation groove, the installation of the reinforcing steel bar protective layer cushion block can be completed by inserting the clamping block assembly into the installation groove, the installation process is greatly simplified, and the stability of the cushion block after installation is guaranteed. According to the utility model, through the arrangement of the limiting unit in a preferable scheme, a semi-fixed structure of the cushion block and the reinforcing steel bar is formed, and the application scene of the utility model is expanded. The structure is simple, the main body structure can be made of various materials such as concrete, large-scale production in factories is facilitated, the cost is low, and the device is suitable for being popularized and applied in production practice.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, especially a self-buckling type fast-assembly steel bar protective layer cushion block. BACKGROUND

[0002] Steel bar protective layer cushion block, also known as concrete cushion block, is placed between steel bars and formwork in brick-concrete structure and frame structure to fix the position of steel bars. Steel bar protective layer cushion block can directly control the thickness of reinforced concrete protective layer, and the thickness of concrete protective layer directly affects the isolation effect of steel bars from the external environment (such as rainwater, chloride ions, and carbon dioxide). If the protective layer is too thin or damaged, the steel bars will be exposed to the corrosive environment, leading to rust expansion, causing concrete cracking and peeling, and ultimately destroying the structural bearing capacity.

[0003] In traditional reinforced concrete pouring, the common concrete cushion block is a concrete prism with a groove, which is fixed between steel bars and concrete bottom plate by the self-weight of steel bars or through iron wire bundling, such as the concrete cushion block capable of controlling the thickness of concrete structure plate disclosed in patent CN221481201U. This technical solution sets an inner concave groove on the top of the prefabricated prism and a steel bar through hole on the lower part of the prefabricated prism, which can control the thickness of the steel bar protective layer at the bottom of the structure plate together with the thickness of the structure plate. However, in this technical solution, on the one hand, the inner concave groove cannot ensure the stability of the top steel bar frame, and on the other hand, due to the existence of the lower steel bar through hole, the cushion block needs to be installed in advance before the steel bar frame is set, which affects the construction efficiency.

[0004] To solve the above problems, a fast and easy-to-install steel bar protective layer cushion block is disclosed in patent CN219825856U. This technical solution uses two groups of cushion blocks with openings, so that the two openings can form a hole structure wrapped around the steel bars after the two groups of cushion blocks are attached. This technical solution simplifies the process of installing the cushion block through the split design of the cushion block, making it convenient for workers to install the cushion block. However, due to the split design of the cushion block of this patent, it is prone to looseness in subsequent engineering, which can easily lead to uneven thickness of the concrete protective layer at different positions, affecting the engineering quality. UTILITY MODEL CONTENTS

[0005] The utility model is to overcome the defects of complex installation of steel bar protective layer cushion block and poor stability of fast-installed steel bar protective layer cushion block in the prior art, and provides a self-buckling type fast-assembly steel bar protective layer cushion block to overcome the above defects.

[0006] To achieve the above purpose, the utility model realizes the following technical solutions:

[0007] A self-buckling type fast-assembly steel bar protection layer cushion block, comprising a cushion block body, wherein a reserved through hole for accommodating a steel bar is arranged on the cushion block body, and an installation slot for allowing the steel bar to pass through and enter the reserved through hole is further arranged on the cushion block body.

[0008] Further comprising a clamping block assembly for filling the installation slot.

[0009] In the prior art, the steel bar protection layer cushion block capable of being quickly installed is mostly designed to be clamped by two cushion block assemblies, but such a problem is that, in order to ensure the stability of the installation of the cushion block assembly, a clamping tenon, a binding belt or other fixing components need to be additionally arranged, which not only is difficult to ensure the stability of the cushion block clamping the steel bar, but also affects the bonding degree with the concrete during subsequent concrete pouring. Therefore, the utility model adopts the structure of the installation slot and the clamping block, and in use, the steel bar is first embedded into the reserved through hole through the installation slot, and then the clamping block assembly is inserted into the installation slot along the direction in which the steel bar extends, so that the clamping block assembly can fill the installation slot, thereby making the installation slot not only a mounting passage of the steel bar, but also capable of accommodating the clamping block assembly. When the steel bar protection layer cushion block of the utility model is installed and directly contacts the concrete bottom plate, the pressure transmitted to the cushion block is perpendicular to the installation direction of the clamping block assembly at this time, and therefore only the friction force between the clamping block assembly and the cushion block body can ensure that the clamping block assembly is not easy to fall off. The steel bar protection layer cushion block of the utility model takes into account the installation efficiency and the installation stability.

[0010] As a preferred, the side of the installation slot away from the reserved through hole is provided with a flange for preventing the clamping block assembly from falling off. The arrangement of the flange can directly prevent the clamping block assembly from falling off in the installation slot from the direction perpendicular to the steel bar, and the flange can also improve the contact area between the clamping block assembly and the cushion block body, improve the friction force, and further improve the stability of the device.

[0011] As a preferred, the installation slot is provided with a clamping hole, and the clamping block assembly comprises a clamping block body and a limiting unit arranged on the clamping block body and clamped with the clamping hole. When the concrete pouring of the wall body is performed, there may be a scenario in which the steel bar protection layer cushion block is arranged perpendicular to the ground. In order to further improve the stability of the steel bar protection layer cushion block of the utility model after installation, the utility model further arranges a limiting structure, and when the clamping block assembly is inserted, the limiting unit is clamped with the clamping hole to form a relatively stable semi-fixed structure, thereby improving the use scenario of the utility model.

[0012] As a further preferred, the limiting unit comprises an accommodating slot formed in the clamping block body and a compression spring fixed in the accommodating slot, and the side of the compression spring away from the accommodating slot is fixed with a limiting column.

[0013] As a further preferred, the clamping hole penetrates the pad body, so that the limiting column can pass through the pad body. When installed, the limiting column can be adjusted by the clamping hole; when the reinforcing layer pad needs to be removed, the limiting unit can be unlocked by pressing the limiting column from the outside of the pad.

[0014] As a further preferred, the limiting column is provided with an inclined surface away from the compression spring. The setting of the inclined surface can not only reduce the self-weight of the pad, but also cooperate with the pad body of different shapes, facilitating the installation and removal of the clamping block assembly.

[0015] As a preferred, the reinforcing layer pad of the utility model further comprises a protective sleeve covering the pad body. The protective sleeve not only can enhance the wear resistance of the pad of the utility model, but also can play the role of auxiliary fixing of the clamping block assembly.

[0016] As a further preferred, the pad body is cylindrical, and two end faces of the pad body extend outward to form annular edges, so that the side surface of the pad body forms an adaptive groove capable of accommodating the protective sleeve. By fixing the protective sleeve in the adaptive groove, the protective sleeve is prevented from falling off during construction.

[0017] As a further preferred, the annular edge is provided with a slope surface facilitating the removal of the protective sleeve.

[0018] As a preferred, the reserved through hole is cylindrical, and the clamping block body is provided with an arc-shaped groove with the same curvature as the reserved through hole on the side close to the reserved through hole. The design of the arc-shaped groove is more conducive to wrapping the reinforcing bars.

[0019] Therefore, the utility model has the following beneficial effects:

[0020] (1) The utility model discloses a clamping block assembly and an installation groove, which are inserted into the installation groove to complete the installation of the reinforcing layer pad, greatly simplifying the installation process and ensuring the stability of the installed pad.

[0021] (2) The utility model discloses a limiting unit of the preferred scheme, which forms a semi-fixed structure of the pad and the reinforcing bar, expanding the application scenarios of the utility model.

[0022] (3) The structure of the utility model is relatively simple, and the main structure can be made of various materials such as concrete, which is convenient for factory scale production, low in cost and suitable for popularization and application in production practice. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an installation schematic view of the self-buckling type fast-installed reinforcing layer pad of the utility model embodiment 1.

[0024] Figure 2The utility model discloses a self -buckling type quick -mounting steel bar protective layer cushion block's cushion block body structure schematic drawing of embodiment 1.

[0025] Figure 3 The utility model discloses a self -buckling type quick -mounting steel bar protective layer cushion block's cushion block body structure schematic drawing of embodiment 2.

[0026] Figure 4 The utility model discloses a self -buckling type quick -mounting steel bar protective layer cushion block's cushion block body structure schematic drawing of embodiment 2.

[0027] Figure 5 The utility model discloses a self -buckling type quick -mounting steel bar protective layer cushion block's cushion block body structure schematic drawing of embodiment 2.

[0028] Figure 6 The utility model discloses a self -buckling type quick -mounting steel bar protective layer cushion block's cushion block body structure schematic drawing of embodiment 2.

[0029] In the figure: cushion block body 1;Reserved through -hole 2;Flange 3;Protective sleeve 4;Annular rim 5;Adaptation slot 6;Pitch surface 7;Mounting groove 10;Clamping hole 11;Clamping block assembly 20;Clamping block body 21;Accommodate slot 22;Compression spring 23;Limiting column 24;Bevel surface 25;Arc slot 26;Limiting unit 30. DETAILED DESCRIPTION

[0030] The utility model will be further described below in conjunction with the drawings and specific embodiment. The person skilled in the art will be able to realize the utility model based on these instructions. In addition, the embodiment of the utility model involved in the following description is generally only a part of the embodiment of the utility model, not all embodiments. Therefore, based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor should belong to the protection scope of the utility model.

[0031] Embodiment 1:

[0032] The main body of the self -buckling type quick -mounting steel bar protective layer cushion block of this embodiment is as shown in Figure 2 The main body of the self -buckling type quick -mounting steel bar protective layer cushion block of this embodiment is as shown in Figure 2As shown, a rectangular mounting slot 10 is opened on the side of the cylindrical cushion body 1, the width of the mounting slot 10 is slightly larger than the diameter of the reserved through hole 2, which can prevent the steel bar from falling off directly while facilitating the insertion of the subsequent clamping block assembly (20). In use, first align the mounting slot 10 with the steel bar, then push the cushion body 1 to the position of the steel bar, so that the steel bar is clamped into the reserved through hole 2; The cushion of the present embodiment can also be sleeved outside the steel bar along the extension direction of the steel bar.

[0033] As shown, Figure 1 After the steel bar is placed in the cushion, the locking effect on the steel bar is a clamping block body 21. The clamping block body 21 is designed according to the size of the mounting slot 10, so that after the clamping block body 21 is inserted into the mounting slot 10, a complete cylinder is formed as a whole, and the clamping block body 21 is not easy to fall off through the friction between the clamping block body 21 and the cushion body 1. During installation, the clamping block body 21 can be pressed into the mounting slot 10 from a direction perpendicular to the steel bar, or the clamping block body 21 can be inserted into the mounting slot 10 from the extension direction of the steel bar, facilitating the installation of the cushion under different working conditions.

[0034] As shown, Figure 1 In order to ensure that the clamping block body 21 is not easy to fall out, a protective sleeve 4 made of elastic rubber is also provided outside the cushion. Two end faces on the cushion body 1 extend outwardly to form an annular rim 5, so that the side of the cushion body 1 forms an adaptation groove 6, which is used to accommodate the protective sleeve 4. Therefore, the annular rim 5 is provided with a slope 7 on one side of the adaptation groove 6 to facilitate the disassembly and installation of the protective sleeve 4. After the clamping block body 21 is inserted into the mounting slot 10, the protective sleeve 4 is slightly expanded to pass over the annular rim 5 and is sleeved outside the cushion body 1 and the clamping block body 21, so that the protective sleeve 4 is finally placed in the adaptation groove 6, and the installation of the self-buckling type fast-assembly steel bar protective layer cushion of the present embodiment is completed.

[0035] Embodiment 2:

[0036] The main body of the self-buckling type fast-assembly steel bar protective layer cushion of the present embodiment is shown in Figure 3 The main function of the cylindrical cushion body 1 is to wrap the steel bar, and a cylindrical reserved through hole 2 with a diameter slightly larger than that of the steel bar is pre-opened in the center of the cushion body 1, so that the reserved through hole 2 can accommodate the steel bar and reduce the shaking of the steel bar in the reserved through hole 2. As shown, Figure 3As shown, a rectangular mounting groove 10 is formed on the side of the cylindrical cushion body 1, and the width of the mounting groove 10 is slightly larger than the diameter of the reserved through hole 2. On the two end faces of the cushion body 1, annular rims 5 are respectively extended outward, so that an adapter groove 6 is formed on the side of the cushion body 1, and a flange 3 is formed on the part of the annular rim 5 which is in contact with the mounting groove 10. In use, first, the mounting groove 10 is aligned with the steel bar, and then the cushion body 1 is forced to push to the position of the steel bar, so that the steel bar is clamped into the reserved through hole 2; or the cushion of the embodiment can be sleeved outside the steel bar along the extension direction of the steel bar.

[0037] As shown in Figure 4 , 5 The clamping block assembly 20 of the embodiment is shown in Figure 4 The clamping block body 21 of the embodiment is shaped the same as the mounting groove 10, and an arc-shaped groove 2 is arranged on the side of the clamping block body 21 which is close to the reserved through hole 2 and is consistent with the arc of the reserved through hole 2. Due to the existence of the flange 3, after the steel bar is clamped into the reserved through hole 2, the clamping block body 21 can only be inserted into the mounting groove 10 along the extension direction of the steel bar, so that the clamping block body 21 is not easy to fall from the direction perpendicular to the steel bar. In order to prevent the clamping block body 21 from sliding along the extension direction of the steel bar, the embodiment specially arranges a limiting unit 30 on the clamping block assembly 20, as shown in Figure 3 First, two clamping holes 11 which penetrate through the cushion body 1 are arranged on both sides of the mounting groove 10 on the cushion body 1, as the fixed points of the limiting unit 30 and the cushion body 1, as shown in Figure 4 An accommodating groove 22 is formed on both sides of the clamping block body 21 at the corresponding positions of the clamping holes, as shown in Figure 5 A compression spring 23 is respectively fixed in the accommodating groove 22, and a limiting column 24 is bonded on the top end of the compression spring 23, and the top end of the limiting column 24 is provided with an inclined surface 25, so that the limiting column 24 is adapted to the surface of the cylindrical cushion body 1. In the installation of the clamping block body 21, first, the limiting column 24 is pressed into the accommodating groove 22, and then the clamping block body 21 is inserted into the mounting groove 10 along the extension direction of the steel bar, and when the limiting column 24 reaches the position of the clamping hole 11, it is automatically popped out under the action of the compression spring 23, achieving the locking effect. Since the clamping hole 11 penetrates through the cushion body 1, the limiting column can be adjusted through the clamping hole 11, and when the limiting column 24 is popped out, the top inclined surface 25 is just adapted to the surface of the cylindrical cushion body 1, as shown in Figure 5 The bottom of the clamping block body 21 is also provided with a recess which is adapted to the adapter groove 6, so that the integrality of the surface of the cushion is stronger after the installation of the clamping block body 21.

[0038] Finally, as shown in Figure 6As shown, in order to prevent the damage of the cushion surface, a protective sleeve 4 made of elastic rubber is arranged outside the cushion. During installation, the protective sleeve 4 is slightly stretched to pass over the annular edge 5 and is sleeved outside the cushion body 1 and the clamping block body 21, and finally the protective sleeve 4 is entirely arranged in the fitting groove 6, and the installation of the self-buckling fast-assembly reinforcing layer cushion of the embodiment is completed.

[0039] The embodiments of the present specification have been described above, and the above description is exemplary and is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A self-locking quick-installation rebar protective layer spacer, characterized in that: The cushion block body (1) is provided with a reserved through hole (2) for accommodating a reinforcing bar, and is further provided with a mounting groove (10) allowing the reinforcing bar to pass through and enter the reserved through hole (2). The cushion block assembly (20) is further provided for filling the mounting groove (10).

2. The self-buckling type fast-assembly steel reinforcement protective layer cushion block according to claim 1, characterized in that: The mounting groove (10) is provided with a flange (3) on the side away from the reserved through hole (2) for preventing the cushion block assembly (20) from falling off.

3. The self-buckling type fast-assembly steel reinforcement protective layer cushion block according to claim 1, characterized in that: The mounting groove (10) is provided with a clamping hole (11), and the cushion block assembly (20) comprises a cushion block body (21) and a limiting unit (30) arranged on the cushion block body (21) and clamped with the clamping hole (11).

4. The self-buckling type fast-assembly steel reinforcement protective layer cushion block according to claim 3, characterized in that: The limiting unit (30) comprises an accommodating groove (22) formed on the cushion block body (21) and a compression spring (23) fixed in the accommodating groove (22), and the compression spring (23) is fixed with a limiting column (24) on the side away from the accommodating groove (22).

5. The self-buckling type fast-assembly steel reinforcement protective layer cushion block according to claim 4, characterized in that: The clamping hole (11) penetrates through the cushion block body (1), so that the limiting column (24) can pass through the cushion block body (1).

6. The self-buckling type fast-assembly steel reinforcement protective layer pad block according to claim 5, characterized in that: The limiting column (24) is provided with an inclined surface (25) on the side away from the compression spring (23).

7. The self-buckling type fast-assembly steel reinforcement protective layer cushion block according to claim 1, characterized in that: The cushion block body (1) is further provided with a protective sleeve (4) for covering the cushion block body (1).

8. The self-buckling type fast-assembly steel reinforcement protective layer cushion block according to claim 6, characterized in that: The cushion block body (1) is in a cylindrical shape, and two end faces thereof extend outwardly with annular rims (5), so that the side surface of the cushion block body (1) forms an adaptive groove (6) capable of accommodating the protective sleeve (4).

9. The self-buckling type fast-assembly steel reinforcement protective layer pad block according to claim 8, characterized in that: The annular rim (5) is provided with a slope surface (7) for facilitating dismounting of the protective sleeve (4).

10. The self-buckling type fast-assembly steel reinforcement cover pad block according to claim 3, characterized in that: The reserved through hole (2) is in a cylindrical shape, and the cushion block body (21) is provided with an arc-shaped groove (26) with the same curvature as the reserved through hole (2) on the side close to the reserved through hole (2).

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