Reinforcing steel bar protection device and building floor slab

Abstract

The utility model belongs to the technical field of house building construction, and discloses a reinforcing steel bar protection device and a building floor slab. The reinforcing steel bar protection device comprises a first formwork assembly and a second formwork assembly, the first formwork assembly comprises a supporting piece and a first installation piece provided with a first installation groove, the second formwork assembly comprises a connecting piece arranged in an included angle mode and a second installation piece provided with a second installation groove, and an upper reinforcing steel bar can abut against the groove bottom of the first installation groove. The lower-layer reinforcing steel bars can abut against the bottoms of the second mounting grooves, the distance between the upper-layer reinforcing steel bars and the lower-layer reinforcing steel bars is the distance between the bottoms of the first mounting grooves and the bottoms of the second mounting grooves, the control precision of the distance between the upper-layer reinforcing steel bars and the lower-layer reinforcing steel bars is high, and the construction quality is improved. The utility model further provides a building floor slab, at least parts of the upper-layer reinforcing steel bars and the lower-layer reinforcing steel bars are installed in the reinforcing steel bar protection device, the total height of the first formwork assembly and the second formwork assembly is the thickness of the building floor slab, and the thickness control precision of the building floor slab is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a steel bar protection device and a building floor slab. Background Technology

[0002] During the construction of building projects, floor slabs are usually constructed according to design drawings and relevant specifications. The spacing between upper and lower layers of steel bars and the thickness of the floor slab or steel bar protective layer are controlled to ensure the construction quality of the floor slab.

[0003] However, due to the differences in construction conditions in different areas of the same project, the same construction process can achieve different expected construction results under different construction conditions. In particular, when tying floor slab reinforcement, the workers cannot fully meet the requirements for controlling the floor slab thickness and the spacing between upper and lower reinforcement bars, which can easily lead to quality problems such as floor slab cracking or exposed reinforcement bars in the later stages, requiring frequent maintenance and adjustment. Utility Model Content

[0004] The purpose of this utility model is to provide a rebar protection device and a building floor slab, which can control the spacing between upper and lower rebars and the thickness of the building floor slab, thereby improving construction quality.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Firstly, this utility model proposes a rebar protection device, comprising:

[0007] The first template assembly includes a first mounting component and a support component connected to each other. The support component is located below the first mounting component. The first mounting component is provided with a first mounting groove, and the upper reinforcing bar can abut against the bottom of the first mounting groove.

[0008] The second template assembly abuts against the support member and includes a second mounting member and a connector arranged at an angle. The second mounting member has a second mounting groove, and the lower reinforcing bar can abut against the bottom of the second mounting groove.

[0009] Optionally, the depth of the first installation groove is greater than the height of the upper reinforcing bar.

[0010] Optionally, the second formwork assembly also includes a reinforcement protective layer, which is disposed below the second mounting component and can support the lower layer of reinforcement.

[0011] Specifically, the height of the concrete cover for the reinforcing bars is between 15mm and 50mm.

[0012] Specifically, the cross-section of the steel reinforcement protective layer is circular and the diameter of the steel reinforcement protective layer is between 50mm and 100mm.

[0013] Optionally, the support member includes a first support portion and a second support portion arranged at an angle, the first support portion abutting against the second mounting member, and the second support portion abutting against the top surface of the connector.

[0014] Optionally, the first mounting component, the support component, the second mounting component, and the connector are all made of fine aggregate concrete.

[0015] Secondly, this utility model also proposes a building floor slab, including upper layer steel bars, lower layer steel bars and the aforementioned steel bar protection device, wherein both the upper layer steel bars and the lower layer steel bars are at least partially installed within the steel bar protection device.

[0016] Optionally, multiple first template components are provided at intervals along the upper layer of reinforcing bars, and multiple second template components are provided at intervals along the lower layer of reinforcing bars. The number of first template components and second template components are the same and correspond one-to-one.

[0017] Specifically, the distance between adjacent first template components is between 400mm and 1000mm.

[0018] The beneficial effects of this utility model are:

[0019] This utility model proposes a rebar protection device, which includes a pre-fabricated first template assembly and a second template assembly. The first template assembly includes a support member and a first mounting member with a first mounting groove. The upper rebar can abut against the bottom of the first mounting groove. The support member is located below the first mounting member, thereby providing stable support for the upper rebar. The second template assembly includes a connector arranged at an angle and a second mounting member with a second mounting groove. The lower rebar can abut against the bottom of the second mounting groove. The first and second mounting grooves improve the installation and positioning effect of the upper and lower rebars. The upper rebar can be inserted into the first mounting groove and abut against the bottom of the first mounting groove, and the lower rebar can be inserted into the second mounting groove and abut against the bottom of the second mounting groove. The distance between the upper and lower rebars is the distance between the bottoms of the pre-fabricated first and second mounting grooves. The control precision of the distance between the upper and lower rebars is high, and the construction quality is improved.

[0020] This utility model also proposes a building floor slab in which both the upper and lower reinforcing bars are at least partially installed within a reinforcing bar protection device, improving the protection effect on the upper and lower reinforcing bars. The upper reinforcing bars abut against the bottom of the first installation groove, and the lower reinforcing bars abut against the bottom of the second installation groove. After the upper and lower reinforcing bars are placed in position, pouring material is used to fill the gap between the upper reinforcing bars and the opening of the first installation groove, and also to fill the gap between the lower reinforcing bars and the opening of the second installation groove. After pouring, the total height of the first and second formwork components is the thickness of the building floor slab, thus improving the accuracy of thickness control. The second installation component and the connecting component abut against the supporting component, which is connected to the first installation component. When the reinforcing bar protection device is installed with the upper and lower reinforcing bars, the first and second formwork components can share the load, reducing the risk of cracking in the building floor slab and improving construction quality. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the rebar protection device described in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the first template component described in this embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the first mounting component according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the second template component described in an embodiment of this utility model.

[0025] In the picture:

[0026] 1. First template component; 11. First mounting component; 111. First mounting slot; 12. Support component; 121. First support part; 122. Second support part;

[0027] 2. Second template component; 21. Second mounting component; 211. Second mounting groove; 22. Connector; 23. Reinforcing bar protective layer. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1-4 As shown, this utility model provides a rebar protection device, including a first template assembly 1 and a second template assembly 2. The first template assembly 1 includes a first mounting member 11 and a support member 12 connected to each other. The support member 12 is disposed below the first mounting member 11. The first mounting member 11 is provided with a first mounting groove 111, and the upper rebar can abut against the bottom of the groove 111. The second template assembly 2 abuts against the support member 12 and includes a second mounting member 21 and a connector 22 arranged at an angle. The second mounting member 21 has a second mounting groove 211, and the lower rebar can abut against the bottom of the groove 211. Both the second mounting member 21 and the connector 22 abut against the support member 12. Optionally, the second mounting member 21 and the connector 22 are arranged vertically.

[0033] In this embodiment, a first template assembly 1 and a second template assembly 2 are pre-processed. The first template assembly 1 includes a support member 12 and a first mounting member 11 with a first mounting groove 111. The upper reinforcing bars can abut against the bottom of the first mounting groove 111. The support member 12 is located below the first mounting member 11, thereby providing stable support for the upper reinforcing bars. The second template assembly 2 includes a connector 22 arranged at an angle and a second mounting member 21 with a second mounting groove 211. The lower reinforcing bars can abut against the bottom of the second mounting groove 211. The first mounting groove 111 and the second mounting groove 211 improve the installation and positioning effect of the upper and lower reinforcing bars. The upper layer of reinforcing bars can be inserted into the first mounting groove 111 and abut against the bottom of the groove 111. The lower layer of reinforcing bars can be inserted into the second mounting groove 211 and abut against the bottom of the groove 211. The distance between the upper and lower layer of reinforcing bars is the distance between the bottoms of the pre-processed first mounting groove 111 and the second mounting groove 211. The control precision of the distance between the upper and lower layer of reinforcing bars is high. The second mounting component 21 and the connecting component 22 are set at an angle and both abut against the support component 12. The contact area between the first template assembly 1 and the second template assembly 2 is large, which improves the reliability and stability of the abutment between the first template assembly 1 and the second template assembly 2, and at the same time limits the stress concentration in some areas when the two abut against each other.

[0034] Specifically, such as Figure 1 and Figure 2 As shown, the support member 12 includes a first support portion 121 and a second support portion 122 arranged at an included angle. The first support portion 121 abuts against the second mounting member 21, and the second support portion 122 abuts against the top surface of the connector 22. By including the first support portion 121 and the second support portion 122, the contact area between the support member 12 and the second template assembly 2 is increased, enhancing the contact reliability between the first template assembly 1 and the second template assembly 2. In this embodiment, the first support portion 121 and the second support portion 122 are arranged vertically, and the longitudinal section of the support member 12 has an inverted L-shaped structure.

[0035] In some embodiments, the groove of the second mounting groove 211 faces downward, and the second template assembly 2 further includes a reinforcing bar protective layer 23. The reinforcing bar protective layer 23 is disposed below the second mounting member 21 and can support the lower reinforcing bar. The reinforcing bar protective layer 23 can isolate the lower reinforcing bar from the external environment. After the reinforcing bar protective layer 23 is disposed, one side of the lower reinforcing bar abuts against the bottom of the second mounting groove 211, and the other side is supported by the reinforcing bar protective layer 23. The second template assembly 2 has a strong limiting effect on the lower reinforcing bar in the vertical direction, which improves the spacing control accuracy between the upper and lower reinforcing bars, and enhances the structural integrity of the lower reinforcing bar and the second template assembly 2.

[0036] Specifically, the height of the concrete cover 23 is between 15mm and 50mm to meet building construction specifications. For floor slabs in Class I environments, when the concrete strength grade is not lower than C25, the thickness of the concrete cover 23 is generally 20mm. When the concrete strength grade is not higher than C20, the thickness of the concrete cover 23 should be increased by 5mm, i.e., 25mm. For precast components produced in factories, when the concrete strength grade is not lower than C20, the thickness of the concrete cover 23 can be reduced by 5mm, i.e., 15mm, according to the above provisions. For floor slabs in special conditions such as humid environments, the thickness of the concrete cover 23 needs to be increased accordingly; for example, the concrete cover 23 on the upper part of a basement roof slab is usually 50mm. Optionally, the cross-section of the concrete cover 23 is circular, and the diameter of the concrete cover 23 is between 50mm and 100mm, which facilitates processing based on existing common-sized building pipes. Compared with rectangular or irregular shapes, this reduces material usage and lowers construction costs.

[0037] In some other embodiments, the groove of the second mounting groove 211 faces upward. It can be understood that, in order to limit the exposure of the lower layer of reinforcing bars after construction, the groove depth of the second mounting groove 211 is greater than the height of the lower layer of reinforcing bars.

[0038] To facilitate the installation of the upper layer of reinforcing bars, the opening of the first mounting groove 111 is set upwards, and the depth of the first mounting groove 111 is greater than the height of the upper layer of reinforcing bars. This ensures that when the upper layer of reinforcing bars is placed in the first mounting groove 111 and abuts against the bottom of the groove, a gap is maintained between the top surface of the upper layer of reinforcing bars and the end face where the opening of the first mounting groove 111 is located. This limits the possibility of exposed reinforcing bars after construction and improves construction quality. It is understood that the gap between the top surface of the upper layer of reinforcing bars and the end face where the opening of the first mounting groove 111 is located is maintained between 15mm and 50mm.

[0039] Secondly, this utility model also proposes a building floor slab, including upper layer steel bars, lower layer steel bars, and the aforementioned steel bar protection device. The upper layer steel bars and lower layer steel bars are at least partially installed in the steel bar protection device, which improves the protection effect of the upper layer steel bars and lower layer steel bars. The upper layer steel bars abut against the bottom of the first installation groove 111, and the lower layer steel bars abut against the bottom of the second installation groove 211. After the upper layer steel bars and lower layer steel bars are placed in place, the gap between the upper layer steel bars and the groove of the first installation groove 111 and the gap between the lower layer steel bars and the groove of the second installation groove 211 are filled with pouring material to enhance the connection effect between the upper layer steel bars and the lower layer steel bars and the steel bar protection device. After the pouring is completed, the total height of the first template assembly 1 and the second template assembly 2 is the thickness of the building floor slab after the pouring is completed, and the thickness control accuracy of the building floor slab is improved. The second mounting component 21 and the connecting component 22 both abut against the support component 12. The support component 12 is connected to the first mounting component 11. When the steel reinforcement protection device is equipped with upper and lower steel reinforcement, the first formwork assembly 1 and the second formwork assembly 2 can share the load they bear, reduce the risk of cracking of the building floor slab, and improve the construction quality.

[0040] It should be noted that the upper and lower reinforcing bars described in this utility model are both mesh structures formed by binding multiple transverse and longitudinal reinforcing bars. Both the upper and lower reinforcing bars have multiple intersections of transverse and longitudinal reinforcing bars, and the reinforcing bar protection device is installed at these intersections. Specifically, the first formwork assembly 1 can be installed at the intersections of the transverse and longitudinal reinforcing bars of the upper reinforcing bars, and the second formwork assembly 2 can be installed at the intersections of the transverse and longitudinal reinforcing bars of the lower reinforcing bars and abuts against the first formwork assembly 1. It is understood that, as... Figure 3 and Figure 4 As shown, to allow the intersecting transverse and longitudinal reinforcing bars to be inserted into the first mounting groove 111 and abut against the bottom of the groove, the cross-section of the first mounting groove 111 is cross-shaped. It is understood that the cross-section of the second mounting groove 211 is also cross-shaped, which will not be elaborated further here. Furthermore, to facilitate the installation of the lower reinforcing bars, the connector 22 should also have a clearance groove to allow the lower reinforcing bars to pass through. In this embodiment, the clearance groove is strip-shaped.

[0041] The building floor slab may include multiple rebar protection devices, namely, multiple first formwork components 1 are arranged at intervals along the upper layer of rebar, and multiple second formwork components 2 are arranged at intervals along the lower layer of rebar. The number of first formwork components 1 and second formwork components 2 are the same and they correspond to each other one by one, so that rebar protection devices are provided at the intersections of multiple transverse and longitudinal rebars of the upper and lower layers of rebar, thereby improving the protection at the intersections of transverse and longitudinal rebars. In addition, setting multiple rebar protection devices can effectively improve the overall spacing consistency of the upper and lower layers of rebar.

[0042] For example, the processing of the first template component 1 and the second template component 2 is as follows: the building pipe is cut into a first mold and a second mold. A first groove is then machined on the first mold, and a second groove is machined on the second mold. After processing, the first mold and the second mold are polished as a whole. Templates for sealing the first and second grooves are then placed at the first and second grooves. Casting material is then filled into the first mold and the second mold respectively. After the casting material has cured, the templates are removed, and the casting material is demolded from the first mold and the second mold respectively, thus forming the first template component 1 and the second template component 2 in this embodiment. For example, the building pipe can be a PVC pipe or a polyethylene pipe (also known as a PE pipe), or other pipe materials with low friction and easy processing, reducing construction costs and processing difficulty.

[0043] Optionally, the materials of the first mounting component 11, the support component 12, the second mounting component 21, and the connector 22 all include fine aggregate concrete. That is, the constituent materials of the first template assembly 1 and the second template assembly 2 both include fine aggregate concrete. Fine aggregate concrete has a small aggregate particle size and a high proportion of cement paste, which makes it more fluid during pouring and easier to fill narrow spaces. This results in a high surface smoothness of each component of the first template assembly 1 and the second template assembly 2 after pouring, thereby improving the processing quality of the first template assembly 1 and the second template assembly 2.

[0044] In this embodiment, the opening of the first mounting groove 111 faces upward, and the opening of the second mounting groove 211 faces downward. The reinforcing bar protective layer 23 is disposed below the second mounting component 21. After the first template assembly 1 and the second template assembly 2 are processed, the second template assembly 2 can be placed on the construction plane first, and then the lower layer of reinforcing bars that have been tied can be installed to abut against the bottom of the second mounting groove 211. Then the first template assembly 1 can be installed to abut against the second template assembly 2. Then the upper layer of reinforcing bars that have been tied can be installed to abut against the bottom of the first mounting groove 111. After installation, the upper layer of reinforcing bars, the lower layer of reinforcing bars and the reinforcing bar protective device are poured as a whole to improve the structural integrity of the three. After pouring, the distance between the top surface of the first mounting component 11 and the bottom surface of the reinforcing bar protective layer 23 is the height of the building floor slab. Understandably, building pipes can be cut, and by adjusting the cutting position, first molds and second molds of different sizes and specifications can be obtained, thereby obtaining first template components 1 and second template components 2 of different sizes and specifications. After the upper and lower reinforcing bars are installed in place, the whole structure is poured to produce a building floor slab with the required thickness.

[0045] Specifically, when the thickness of the building floor slab is no more than 100mm, a steel reinforcement protection device is usually installed every 800mm-1000mm; when the thickness of the building floor slab exceeds 100mm but is no more than 200mm, a steel reinforcement protection device is usually installed every 600mm-800mm; when the thickness of the building floor slab exceeds 200mm, a steel reinforcement protection device is usually installed every 400mm-600mm. That is, the distance between adjacent first formwork assembly 1 and adjacent second formwork assembly 2 is between 400mm and 1000mm, so as to enhance the stability and reliability of the upper and lower steel reinforcement stress system, improve the structural durability of the building floor slab, and improve the construction quality.

[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A rebar protection device, characterized in that, include: The first template assembly (1) includes a first mounting component (11) and a support component (12) connected to each other. The support component (12) is located below the first mounting component (11). The first mounting component (11) is provided with a first mounting groove (111), and the upper reinforcing bar can abut against the bottom of the first mounting groove (111). The second template component (2) abuts against the support member (12) and includes a second mounting member (21) and a connector (22) arranged at an angle. The second mounting member (21) has a second mounting groove (211) and the lower reinforcing bar can abut against the bottom of the second mounting groove (211).

2. The rebar protection device according to claim 1, characterized in that, The depth of the first mounting groove (111) is greater than the height of the upper reinforcing bar.

3. The rebar protection device according to claim 1, characterized in that, The second template assembly (2) also includes a steel reinforcement protective layer (23), which is disposed below the second mounting component (21) and can support the lower layer of steel reinforcement.

4. The rebar protection device according to claim 3, characterized in that, The height of the steel reinforcement protective layer (23) is between 15mm and 50mm.

5. The rebar protection device according to claim 3, characterized in that, The cross-section of the steel reinforcement protective layer (23) is circular and the diameter of the steel reinforcement protective layer (23) is between 50mm and 100mm.

6. The rebar protection device according to any one of claims 1-5, characterized in that, The support member (12) includes a first support portion (121) and a second support portion (122) arranged at an angle. The first support portion (121) abuts against the second mounting member (21), and the second support portion (122) abuts against the top surface of the connector (22).

7. The rebar protection device according to any one of claims 1-5, characterized in that, The first mounting component (11), the support component (12), the second mounting component (21), and the connector (22) are all made of fine aggregate concrete.

8. A building floor slab, comprising upper reinforcing bars, lower reinforcing bars, and a reinforcing bar protection device as described in any one of claims 1-7, characterized in that, Both the upper and lower reinforcing bars are at least partially installed within the reinforcing bar protection device.

9. The building floor slab according to claim 8, characterized in that, The first template component (1) is provided in multiple intervals along the upper layer of reinforcing bars, and the second template component (2) is provided in multiple intervals along the lower layer of reinforcing bars. The number of the first template component (1) and the second template component (2) are the same and correspond one-to-one.

10. The building floor slab according to claim 9, characterized in that, The distance between adjacent first template components (1) is between 400mm and 1000mm.

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