A reinforced concrete cover control structure

Abstract

The utility model discloses a reinforced concrete protective layer control structure, at least two groups, including lower support block, adjusting block, upper support block and control rod, the lower support block is used for supporting lower layer reinforcement, the bottom of lower support block connects detachable adjusting block, the upper portion of lower support block is connected with upper support block of sliding, the top of upper support block is connected with detachable control rod, among them, the control line is connected between every two adjacent control rods.

Description

Technical Field

[0001] This utility model relates to a control structure for reinforced concrete protective layer. Background Technology

[0002] The concrete cover is the layer of concrete between the outermost edge of the reinforcing steel bars and the concrete surface in a concrete structural member. It ensures that the reinforcing steel bars and the surrounding concrete work together, allowing the steel bars to reach their calculated strength, and prevents corrosion, thus guaranteeing that the steel bars do not degrade the structural reliability during the design service life of the member.

[0003] Existing technology uses cement blocks to support the lower layer of reinforcing bars on the formwork. However, when workers move the cement blocks, they may shift and detach from the reinforcing bars, causing the reinforcing bars to come into direct contact with the formwork. Existing technology uses trestles to separate the upper and lower layers of reinforcing bars, which needs to be customized according to different design parameters, and batch customization wastes time.

[0004] Therefore, a reinforced concrete protective layer control structure is proposed to address the above problems. Utility Model Content

[0005] The purpose of this utility model is to overcome the existing defects and provide a reinforced concrete protective layer control structure that can adjust the width of the protective layer by changing the model during construction.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reinforced concrete protective layer control structure, comprising at least two sets, including a lower support block, an adjusting block, an upper support block, and a control rod; the lower support block is used to support the lower layer of reinforcing bars; the bottom of the lower support block is connected to the detachable adjusting block, the upper part of the lower support block is slidably connected to the upper support block, and the top of the upper support block is connected to the detachable control rod; Each pair of adjacent control rods is connected by a control line.

[0007] Preferably, the lower support block is a rectangular block, and the four side walls of the lower support block are respectively provided with U-shaped channels for installing reinforcing bars.

[0008] Preferably, the lower end of the lower support block is a connecting part, and the height of the connecting part is 10mm or 20mm.

[0009] Preferably, the top of the adjusting block is provided with a bearing groove, and the inner wall of the bearing groove is fitted and connected to the outer wall of the connecting part.

[0010] Preferably, the lower part of the bearing groove is connected to four adjusting columns, which are rectangular blocks with a height between 5mm and 40mm.

[0011] Preferably, the U-shaped channels are connected by a transfer column, and the side wall of the transfer column is provided with a plurality of grooves. The spacing between adjacent grooves is the same, and the adjacent grooves on the left and right are on the same straight line.

[0012] Preferably, the upper support block has U-shaped grooves on its four walls, each U-shaped groove has a limiting rod on both sides, the limiting rod has a connecting hole, and the lower end of the upper support block is a positioning part.

[0013] Preferably, through grooves are formed on both sides of the side wall of the positioning part, the width of the through grooves is the same as the width of the transfer column, and a slider protrudes from the inner wall of the positioning part, the slider being slidably connected in the groove.

[0014] Preferably, the bottom of the control rod is inserted into the connecting hole, the top of the control rod is provided with a threaded hole, a screw is screwed into the threaded hole, and the end of the control line is wound around the screw.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This reinforced concrete protective layer control structure uses a lower support block to support the lower layer of reinforcing bars; the bottom of the lower support block is connected to a detachable adjustment block, the upper part of the lower support block is slidably connected to an upper support block, and the top of the upper support block is connected to a detachable control rod; a control line is connected between each pair of adjacent control rods; different models of adjustment columns can be selected, the slider can slide into grooves of different heights, and the height of the control rods can be selected. The structure is installed layer by layer during reinforcing bar binding, thereby ensuring that both the upper and lower protective layers of reinforced concrete meet design requirements and preventing the reinforcing bars from detaching from the pad block and directly contacting the formwork, thus guaranteeing the quality of the concrete components. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram illustrating the application of the reinforced concrete protective layer control structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of the reinforced concrete protective layer control structure of this utility model; Figure 3 This is a detailed view of the control lever of this utility model.

[0017] In the diagram: 1. Lower support block; 11. U-shaped channel; 12. Connecting part; 13. Central column; 131. Groove; 2. Adjusting block; 21. Bearing groove; 22. Adjusting column; 3. Upper support block; 31. U-shaped groove; 32. Limiting rod; 321. Connecting hole; 33. Positioning part; 331. Through groove; 332. Slider; 4. Control rod; 41. Threaded hole; 42. Screw; 5. Control line. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-3 As shown, a reinforced concrete protective layer control structure comprises at least two sets, including a lower support block 1, an adjusting block 2, an upper support block 3, and a control rod 4; the lower support block 1 is used to support the lower layer of reinforcing bars; the bottom of the lower support block 1 is connected to a detachable adjusting block 2, the upper part of the lower support block 1 is slidably connected to the upper support block 3, and the top of the upper support block 3 is connected to a detachable control rod 4; wherein, a control line 5 is connected between each pair of adjacent control rods 4.

[0020] Specifically, the lower support block 1 is a rectangular block, and each of its four side walls has a U-shaped channel 11 for installing reinforcing bars. The lower end of the lower support block 1 is a connecting part 12, which has a height of 10mm or 20mm. Between the U-shaped channels 11 are central columns 13, and the side walls of the central columns 13 have several grooves 131. The spacing between adjacent grooves 131 is the same, and adjacent grooves 131 are on the same straight line.

[0021] Specifically, the width of the U-shaped channel 11 is greater than the width of the reinforcing bar. The width of the U-shaped channel 11 is preferably greater than 36mm. The reinforcing bar is installed on the U-shaped channel 11. The U-shaped channel 11 creates a gap between the reinforcing bar and the formwork, so that a protective layer for the reinforcing bar exists after pouring.

[0022] Specifically, below the U-shaped channel 11 is the connecting part 12, which has a height of 10mm or 20mm. When the reinforced concrete protective layer is 10mm or 20mm, the corresponding model of the lower support block 1 is directly selected. At this time, the bottom of the connecting part 12 is in direct contact with the formwork, thereby ensuring that the distance between the reinforcing bar and the formwork meets the requirements.

[0023] Specifically, the top of the adjusting block 2 is provided with a bearing groove 21, and the inner wall of the bearing groove 21 is fitted and connected to the outer wall of the connecting part 12. The lower part of the bearing groove 21 is connected to four adjusting columns 22. The adjusting columns 22 are rectangular blocks, and the height of the adjusting columns 22 is between 5mm and 40mm.

[0024] Specifically, the adjusting block 2 is used to connect with the connecting part 12 to adjust the distance between the reinforcing bar and the formwork, thereby ensuring that the thickness of the protective layer meets the requirements. The top of the adjusting block 2 is a bearing groove 21, the size of which is the same as that of the connecting part 12, and the inner wall of the bearing groove 21 fits against the outer wall of the connecting part 12.

[0025] Specifically, the adjusting columns 22 are available in 5mm increments between 5-40mm. During use, the adjusting blocks 2 are combined with the various types of the lower support blocks 1 to ensure that the bottom of the U-shaped channel 11 is at the design value for the reinforced concrete protective layer. Multiple adjusting columns 22 and lower support blocks 1 support the entire lower steel mesh.

[0026] Specifically, the U-shaped channels 11 are connected by a central column 13, which prevents the reinforcing bars from shifting too much. The opposite side walls of the central column 13 are provided with several grooves 131. The vertical spacing between adjacent grooves 131 is the same, with a vertical spacing of 10mm. The horizontal grooves 131 are arranged on the same straight line, and the U-shaped channels 11 are located between two horizontal grooves 131.

[0027] Specifically, after the lower layer of reinforcing bars is tied, the upper support block 3 is installed on the lower support block 1, and the lower layer of reinforcing bars is placed between the lower support block 1 and the upper support block 3. The upper support block 3 has a hollow structure in the middle, and the top of the upper support block 3 is a U-shaped groove 31. The U-shaped groove 31 is used to support the upper layer of reinforcing bars. The distance between the bottom of the U-shaped groove 31 and the U-shaped channel 11 is the spacing between the upper and lower layers of reinforcing bars. A limiting rod 32 is provided between the U-shaped grooves 31, and a connecting hole 321 is provided at the top of the limiting rod 32. The lower part of the upper support block 3 is a positioning part 33.

[0028] Specifically, U-shaped grooves 31 are formed on the four walls of the upper support block 3, and each U-shaped groove 31 is provided with a limiting rod 32 on both sides. The limiting rod 32 is provided with a connecting hole 321. The lower end of the upper support block 3 is a positioning part 33. Through grooves 331 are formed on both sides of the side wall of the positioning part 33. The width of the through grooves 331 is the same as the width of the central column 13. A slider 332 protrudes from the inner wall of the positioning part 33 and slides in the groove 131. The bottom of the control rod 4 is inserted into the connecting hole 321, and the top of the control rod 4 is provided with a threaded hole 41. A screw 42 is screwed into the threaded hole 41, and the end of the control line 5 is wound around the screw 42.

[0029] Specifically, two through slots 331 are provided on one side of the positioning part 33. The width of the through slots 331 is the same as the width of the transfer column 13, and the distance between the two through slots 331 is also the distance between the two transfer columns 13. The through slots 331 can pass laterally through the transfer column 13. The inner wall of the positioning part 33 fits against the outer wall of the transfer column 13. The side wall of the positioning part 33 opposite to the through slots 331 can limit the excessive sliding of the positioning part 33. A slider 332 protrudes from the inner wall of the positioning part 33. The slider 332 is slidably connected to the groove 131. The groove 131 restricts the up and down movement of the slider 332, thereby resisting the downward pressure of the upper layer of reinforcing bars. The groove 131 is selected according to the designed spacing between the upper and lower layers of reinforcing bars. Because multiple grooves 131 are provided, this device can adapt to various design requirements. The installation process of the upper support block 3 is as follows: Align the through groove 331 with the central column 13, align the slider 332 with the corresponding groove 131, and move the positioning part 33 horizontally so that the central column 13 fits against the side wall of the positioning part 33 on the opposite side of the through groove 331, thus completing the installation.

[0030] Specifically, the two upper support blocks 3 are connected by a control rod 4 and a control line 5, ensuring that the control line 5 is positioned on the completed concrete surface and that the thickness of the upper reinforced concrete protective layer meets the requirements. The bottom of the control rod 4 is inserted into a connecting hole 321. The depth of the connecting hole 321 prevents the control rod 4 from detaching. The length of the control rod 4 is selected according to design requirements. After installation, the top of the control rod 4 is on the completed concrete surface. After pouring, the control rod 4 can be pulled upwards and retrieved. The top of the control rod 4 has a threaded hole 41 that extends into the interior of the control rod 4.

[0031] Specifically, a screw 42 is screwed into the threaded hole 41, and the end of the control line 5 is wrapped around the side wall of the screw 42. Both ends of the control line 5 are wrapped around the screw 42, thereby making the control line 5 taut. Then, the bolt is tightened so that the head of the screw 42 and the top of the control rod 4 press the control line 5 together to prevent it from loosening.

[0032] This device allows for the selection of different models of adjusting columns 22, the sliding block 332 to slide into grooves 131 at different heights, and the height selection of the control rod 4. It is installed layer by layer during the reinforcement binding process, thereby ensuring that both the upper and lower protective layers of reinforced concrete meet the design requirements. It also prevents the reinforcement from detaching from the pads and directly contacting the formwork, thus guaranteeing the quality of the concrete components.

[0033] This reinforced concrete protective layer control structure uses a lower support block 1 to support the lower layer of reinforcing bars. The bottom of the lower support block 1 is connected to a detachable adjusting block 2, and the upper part of the lower support block 1 is slidably connected to an upper support block 3. The top of the upper support block 3 is connected to a detachable control rod 4. Control lines 5 connect every two adjacent control rods 4. This allows for the selection of different types of adjusting columns, the sliding of sliders into grooves of different heights, and the selection of the control rod height. The structure is installed layer by layer during reinforcing bar binding, ensuring that both the upper and lower protective layers of the reinforced concrete meet design requirements. It also prevents the reinforcing bars from detaching from the pads and directly contacting the formwork, thus guaranteeing the quality of the concrete components.

[0034] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 reinforced concrete protective layer control structure, comprising at least two sets, characterized in that, It includes a lower support block (1), an adjusting block (2), an upper support block (3), and a control rod (4); the lower support block (1) is used to support the lower layer of steel bars; the bottom of the lower support block (1) is connected to the detachable adjusting block (2), the upper part of the lower support block (1) is slidably connected to the upper support block (3), and the top of the upper support block (3) is connected to the detachable control rod (4); Control lines (5) are connected between each pair of adjacent control rods (4).

2. The reinforced concrete protective layer control structure according to claim 1, characterized in that, The lower support block (1) is a rectangular block, and the four side walls of the lower support block (1) are respectively provided with U-shaped channels (11) for installing steel bars.

3. The reinforced concrete protective layer control structure according to claim 2, characterized in that, The lower end of the lower support block (1) is a connecting part (12), and the height of the connecting part (12) is 10mm or 20mm.

4. The reinforced concrete protective layer control structure according to claim 3, characterized in that, The top of the adjusting block (2) is provided with a bearing groove (21), and the inner wall of the bearing groove (21) is fitted and connected to the outer wall of the connecting part (12).

5. The reinforced concrete protective layer control structure according to claim 4, characterized in that, The lower part of the bearing groove (21) is connected to four adjusting columns (22), the adjusting columns (22) are rectangular blocks, and the height of the adjusting columns (22) is between 5mm and 40mm.

6. The reinforced concrete protective layer control structure according to claim 2, characterized in that, The U-shaped channels (11) are connected by a transfer column (13). The side wall of the transfer column (13) is provided with several grooves (131). The spacing between adjacent grooves (131) is the same, and the adjacent grooves (131) are on the same straight line.

7. The reinforced concrete protective layer control structure according to claim 6, characterized in that, The upper support block (3) has U-shaped grooves (31) on its four walls. Each U-shaped groove (31) has a limiting rod (32) on both sides. The limiting rod (32) has a connecting hole (321). The lower end of the upper support block (3) is a positioning part (33).

8. The reinforced concrete protective layer control structure according to claim 7, characterized in that, The positioning part (33) has through grooves (331) on both sides of its sidewall. The width of the through grooves (331) is the same as the width of the central column (13). The inner wall of the positioning part (33) has a slider (332) protruding from it. The slider (332) is slidably connected to the groove (131).

9. The reinforced concrete protective layer control structure according to claim 7, characterized in that, The bottom of the control rod (4) is inserted into the connection hole (321), and the top of the control rod (4) is provided with a threaded hole (41). A screw (42) is screwed into the threaded hole (41), and the end of the control line (5) is wrapped around the screw (42).

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