A device for preventing denting of embedded parts and its installation method

Abstract

This invention relates to the field of building construction technology, and in particular to a device for preventing dents in embedded parts and its installation method. The device includes: an embedded part, reinforcing bars, nuts, adjusting bolts, and structural reinforcing bars. Four reinforcing bars are arranged in a crisscross pattern to form a grid-like frame. Each of the four reinforcing bars is fixedly connected to the front end of the structural reinforcing bars. Four nuts are fixedly connected to the outer sides of the four intersection points of the four reinforcing bars. Four adjusting bolts are also provided, each corresponding to one of the four nuts. Each adjusting bolt includes a screw rod, a spring, and a washer. The rear side of the spring is sleeved and fixed to the front outer wall of the screw rod. The front end of the spring is fixedly connected to the rear end of the washer. The rear side of the screw rod passes through and is threadedly connected to the corresponding nut. The front and rear ends of the embedded part are tightly fitted with the front ends of the four washers. This invention provides a device for preventing dents in embedded parts and its installation method that can significantly reduce costs.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a device for preventing dents in embedded parts and its installation method. Background Technology

[0002] In building construction, embedded parts are key nodes connecting structural components to subsequent installed parts, and their installation quality directly affects the overall structural stability and safety of the project. Traditional embedded part installation technology mainly adopts a combination of top rod pads, top rod threaded steel bars, and spring bars for reinforcement, and is fixed by welding and binding wire.

[0003] However, traditional processes have several drawbacks: First, they consume a large amount of materials, requiring redundant components such as top rod pads, top rod threaded steel, 8mm spring bars, welding rods of various specifications, and binding wire for each embedded part, resulting in significant cost pressure. Second, the flatness control accuracy is limited, relying on the combination of spring bars and top rods for fixation, making precise adjustment difficult and easily leading to excessive installation deviations of the embedded parts, increasing subsequent rectification costs. Third, the process is cumbersome, with the bending of spring bars being time-consuming and labor-intensive, requiring multiple workers, including steelworkers, embedded part installers, and general laborers, resulting in high labor costs and low construction efficiency. Fourth, the stability of the reinforced structure is insufficient, as the combination of welding and binding is prone to displacement and deformation during concrete pouring, affecting installation quality.

[0004] With the promotion and application of the lean construction concept in the field of building engineering, the traditional embedded part installation process can no longer meet the construction requirements of "improving quality, increasing efficiency and reducing costs". There is an urgent need for a new type of installation process and reinforcement structure that is material-simplified, precision-controllable, process-simplified and cost-optimized. Summary of the Invention

[0005] The purpose of this invention is to provide a device for preventing dents in embedded parts and its installation method, so as to solve the technical problems existing in the background art.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: An anti-denting device for embedded parts, characterized in that it comprises: an embedded part, reinforcing bars, nuts, adjusting bolts, and structural reinforcing bars. Four reinforcing bars are provided, arranged in a grid pattern to form a cross-shaped frame. Each of the four reinforcing bars is fixedly connected to the front end of the structural reinforcing bars. Four nuts are fixedly connected to the outer sides of the four intersection points of the four reinforcing bars. Four adjusting bolts are provided, each corresponding to one of the four nuts. Each adjusting bolt comprises: a screw rod, a spring, and a washer. The rear side of the spring is sleeved and fixed to the front outer wall of the screw rod. The front end of the spring is fixedly connected to the rear end of the washer. The rear side of the screw rod passes through and is threadedly connected to the corresponding nut. The front and rear ends of the embedded part are tightly fitted with the front ends of the four washers.

[0007] Furthermore, the embedded part includes: an embedded part body and anchor bars, wherein a plurality of anchor bars are provided, the plurality of anchor bars are evenly distributed, and the front ends of the plurality of anchor bars are respectively fixedly connected to the rear end face of the embedded part body; the rear end face of the embedded part body is respectively tightly fitted to the front end face of four gaskets.

[0008] Furthermore, four anchor bars are provided, and the four anchor bars are respectively attached to or fixedly connected to the four inner corners of the grid-shaped frame formed by the cross-arrangement of the four reinforcement bars.

[0009] Furthermore, the four reinforcing bars are welded and fixed at the four intersection points.

[0010] Furthermore, the grid-shaped frame formed by the four reinforcement measures is fixed to the structural reinforcement by binding wire.

[0011] Furthermore, four nuts are welded and fixed to the upper and lower sides of the outer wall on the opposite side of the two vertically installed reinforcement bars.

[0012] Furthermore, the spring and the screw are fixed together by spot welding, and the spring and the washer are fixed together by spot welding.

[0013] An installation method for an anti-denting device for embedded parts as described in any one of claims 1 to 7, characterized in that it includes the following steps: Step 1: Based on the construction documents, clarify the model, specifications and installation requirements of the embedded parts, select the embedded parts that meet the requirements, and after signing and confirming, check the integrity of the identification information and the appearance of the embedded parts to ensure that there are no quality problems. Step 2: According to the coordinates marked on the design drawings, transport the processed embedded parts to the installation location, and place them in place according to the positioning lines marked on site to ensure that the embedded parts are roughly in the design position. Step 3: Use a crowbar or hand chain hoist in conjunction with a baseline to accurately correct the position of the embedded parts and adjust their horizontal and vertical alignment. For large embedded parts with significant weight, a crane or tower crane may be needed to assist in positioning to ensure the embedded parts remain stable and do not wobble during the correction process. Step 4: Use four reinforcing bars as the main reinforcement. Arrange them at the four corners and weld four nuts onto the reinforcing bars to form a grid-shaped frame. Tie the grid-shaped frame to the structural reinforcing bars with binding wire. Screw four adjusting bolts into the four nuts respectively. Rotate the bolts to make the washers abut against the rear end face of the embedded part body. Precisely control the flatness of the embedded part body and ensure that the installation deviation meets the design requirements. Step 5: Conduct a comprehensive inspection to ensure that the model and quantity of the embedded parts are consistent with the design, confirm that the front and back of the embedded parts are facing correctly, check whether the installation elevation, flatness, and center position meet the specifications, and at the same time check the stability of the grid frame to ensure that there is no risk of displacement during the concrete pouring process. Step Six: After passing the self-inspection, mark the installation status of the embedded part in the embedded part positioning information table and the site diagram. After the supervisor or relevant acceptance personnel have accepted it, check the mark with a red pen to confirm and complete the installation process.

[0014] Furthermore, in step four, when welding the nut to the reinforcing bar, it is necessary to ensure that the perpendicularity deviation of the thread is ≤1.5° and the welding length is ≥10mm.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. Significantly reduced costs: The materials used in the pre-embedded anti-dent device provided by this invention are greatly simplified, eliminating redundant components such as top rod pads and spring bars. The overall unit price is reduced by 60%-70% compared to traditional processes; the material cost ratio is reduced to below 28.7%, effectively reducing ineffective consumption and lowering the overall project cost. 2. Improved installation accuracy: The embedded part anti-dent device provided by this invention adopts the matching design of adjusting bolts and nuts, combined with the buffer adjustment effect of springs, which can accurately control the flatness of embedded parts, and the deviation can be controlled within 2mm. This solves the problem of insufficient flatness control accuracy of traditional processes, reduces the amount of subsequent rectification work, and improves the pass rate of project quality. 3. Optimized construction efficiency: The embedded anti-dent device provided by this invention eliminates cumbersome procedures such as bending spring bars, simplifies the reinforcement process, eliminates the need for complex coordination among multiple trades, reduces labor intensity, significantly improves construction efficiency, and achieves optimized allocation of human, material and machine resources. 4. Reinforced structural stability: The grid-shaped frame in this invention, combined with binding and selective welding, enhances the resistance to displacement of the reinforced structure. During the concrete pouring process, it can effectively prevent the deformation and displacement of embedded parts, ensuring the stability of installation quality. 5. Strong adaptability: The installation method and anti-dent device for embedded parts provided by this invention are applicable to the installation of embedded parts of various specifications and weights. Whether it is a small conventional embedded part or a large heavy embedded part, the installation requirements can be met by adjusting the specifications of the reinforcing bars, the number of bolts and other parameters. It has a wide range of applications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an anti-denting device for embedded parts provided by the present invention; Figure 2 This is a schematic diagram of the connection of the reinforcing bars, nuts and adjusting bolts in an embedded anti-dent device provided by the present invention; Figure 3 This is a schematic diagram of the structure of the adjusting bolt in an embedded anti-dent device provided by the present invention.

[0017] The labels in the attached diagram are as follows: 1-Embedded part body, 2-Reinforcing steel bar, 3-Nut, 4-Adjusting bolt, 41-Screw rod, 42-Spring, 43-Washer, 5-Structural steel bar, 6-Anchor bar. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] See Figures 1-3 As shown, an anti-denting device for embedded parts includes: embedded parts, reinforcing bars 2, nuts 3, adjusting bolts 4, and structural reinforcing bars 5. Four reinforcing bars 2 are provided, and the four reinforcing bars 2 are arranged in a cross pattern to form a grid frame. The four reinforcing bars 2 are respectively fixedly connected to the front end of the structural reinforcing bars 5. Four nuts 3 are respectively fixedly connected to the outer side of the four intersection points of the four reinforcing bars 2. Four adjusting bolts 4 are provided, and the four adjusting bolts 4 are corresponding to the four nuts 3. The adjusting bolt 4 includes: a screw 41, a spring 42, and a washer 43. The rear side of the spring 42 is sleeved and fixed on the front outer wall of the screw 41. The front end of the spring 42 is fixedly connected to the rear end of the washer 43. The rear side of the screw 41 passes through and is threadedly connected to the corresponding nut 3. The front and rear end faces of the embedded parts are tightly fitted with the front end faces of the four washers 43.

[0020] The embedded part includes: the embedded part body 1 and the anchor bar 6. There are several anchor bars 6, which are evenly distributed. The front ends of the anchor bars 6 are fixedly connected to the rear end face of the embedded part body 1. The anchor bars 6 are made of threaded steel with a diameter ≥12mm. The rear end face of the embedded part body 1 is tightly fitted with the front end face of the four gaskets 43.

[0021] Four anchor bars 6 are provided, and the four anchor bars 6 are respectively attached to or fixedly connected to the four corners of the grid-shaped frame formed by the four measures steel bars 2. The four measures steel bars 2 are welded and fixed at the four intersection points. The grid-shaped frame formed by the four measures steel bars 2 is tied and fixed to the structural steel bars 5 by binding wire. This effectively limits the displacement of the embedded parts in the X and Y axis directions. At the same time, the nuts 3 and adjusting bolts 4 integrated in the grid-shaped frame can be used to accurately adjust the Z axis direction (verticality / flatness) of the embedded parts, which significantly enhances the overall stability and deformation resistance of the reinforced structure.

[0022] Four nuts 3 are welded and fixed to the upper and lower sides of the outer wall on the opposite side of the two vertically set reinforcement bars 2.

[0023] Spring 42 and screw 41 are fixed by spot welding, and spring 42 and washer 43 are fixed by spot welding to form an integral component. The length of spring 42 in its free state is 50mm, and the adjustable stroke is 0~20mm. The assembled adjusting bolt 4 is screwed into nut 3. The screwing position is suitable so that the front end face of the embedded part exceeds the wall surface by 0~20mm. After screwing, it is necessary to ensure that the end face of washer 43 is tightly fitted with the back end face of the embedded part body 1.

[0024] An installation method for an anti-denting device for embedded parts includes the following steps: Step 1: Prerequisite preparation: Based on the construction documents, clarify the model, specifications and installation requirements of the embedded parts, select embedded parts that meet the requirements, and after signing and confirmation, check the integrity of the identification information and the appearance of the embedded parts to ensure that there are no quality problems such as deformation or corrosion. Step 2: Placement of Embedded Parts: According to the coordinates marked on the design drawings, transport the processed embedded parts to the installation location, and place them in place according to the positioning lines marked on site to ensure that the embedded parts are roughly in the design position. Step 3: Installation and Correction: Use a pry bar or hand chain hoist in conjunction with a baseline to accurately correct the position of the embedded parts and adjust their horizontal and verticality. For large embedded parts with heavy weight, a crane or tower crane is required to assist in positioning to ensure that the embedded parts are stable and do not shake during the correction process. Step 4: Reinforcement of Embedded Parts: Four reinforcing bars 2 with a diameter ≥12mm are used as the main reinforcement. Four nuts 3 with a specification ≥M8 are welded onto the reinforcing bars 2 according to the four-corner arrangement principle, forming a grid-shaped frame. The grid-shaped frame is then tied to the structural reinforcing bars 5 using binding wire. If necessary, additional anchor bars can be welded to enhance connection stability. Four adjusting bolts 4 with a length ≥70mm are screwed into the four nuts 3. By rotating the screw 41, the washer is brought into contact with the rear end face of the embedded part body 1, precisely controlling the flatness of the embedded part body 1 to ensure that the installation deviation meets the design requirements (e.g., flatness deviation ≤2mm). The number of adjusting bolts 4 must meet the following requirements: for standard square embedded parts, at least four are arranged at the four corners; for rectangular embedded parts, at least four are required; for non-standard embedded parts, if the length of one side is >1m, at least three adjusting bolts 4 are required in that direction; if the length of one side is ≤1m, two adjusting bolts 4 are required in that direction. Step 5: Self-inspection of embedded parts: Conduct a comprehensive inspection to ensure that the model and quantity of embedded parts are consistent with the design, confirm that the front and back of the embedded parts are facing the correct direction, check whether the installation elevation, flatness, and center position meet the specifications, and at the same time check the stability of the grid frame to ensure that there is no risk of displacement during the concrete pouring process. Step Six: Acceptance Marking: After self-inspection and approval, mark the installation status of the embedded part in the embedded part positioning information table and site diagram. After the supervisor or relevant acceptance personnel have accepted it, check the mark with a red pen to confirm and complete the installation process.

[0025] When welding nut 3 to reinforcement bar 2 in step four, the perpendicularity deviation of the thread must be ≤1.5° and the welding length must be ≥10mm.

[0026] During concrete pouring, the compressive force of the formwork and the elastic force of the spring 42 are balanced, which can achieve the anti-denting effect of the embedded parts and avoid displacement and deformation of the embedded parts.

[0027] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limiting this invention.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent substitutions, and improvements made by those skilled in the art to the above embodiments without departing from the scope of the technical solution of the present invention, based on the technical essence of the present invention, shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A device for preventing denting of embedded parts, characterized in that, include: The embedded parts, reinforcement bars (2), nuts (3), adjusting bolts (4) and structural reinforcement bars (5) are provided. There are four reinforcement bars (2), which are arranged in a grid pattern. The four reinforcement bars (2) are fixedly connected to the front end of the structural reinforcement bars (5). Four nuts (3) are fixedly connected to the outside of the four intersection points of the four reinforcement bars (2). There are four adjusting bolts (4), which are set one-to-one with the four nuts (3). The adjusting bolts (4) include: screw rod (41), spring (42) and washer (43). The rear side of the spring (42) is sleeved and fixed on the front outer wall of the screw rod (41). The front end of the spring (42) is fixedly connected to the rear end of the washer (43). The rear side of the screw rod (41) passes through and is threaded to the corresponding nut (3). The front and rear ends of the embedded parts are tightly fitted with the front ends of the four washers (43).

2. The anti-denting device for embedded parts according to claim 1, characterized in that: The embedded part includes: an embedded part body (1) and anchor bars (6). There are several anchor bars (6), which are evenly distributed. The front ends of the anchor bars (6) are fixedly connected to the rear end face of the embedded part body (1). The rear end face of the embedded part body (1) is tightly fitted to the front end face of the four gaskets (43).

3. The anti-denting device for embedded parts according to claim 2, characterized in that: The anchor bars (6) are provided in four parts, and the four anchor bars (6) are respectively attached to or fixedly connected to the four measures steel bars (2) arranged in a cross pattern to form the inner four corners of the grid frame.

4. The anti-denting device for embedded parts according to claim 1, characterized in that: The four reinforcement bars (2) are welded and fixed at the four intersections.

5. The anti-denting device for embedded parts according to claim 1, characterized in that: The grid-shaped frame formed by the four reinforcement bars (2) and the structural reinforcement bars (5) are fixed by binding wire.

6. The anti-denting device for embedded parts according to claim 1, characterized in that: Four nuts (3) are welded and fixed to the upper and lower sides of the outer wall of the two vertically set reinforcement bars (2) on opposite sides.

7. The anti-denting device for embedded parts according to claim 1, characterized in that: The spring (42) and the screw (41) are fixed by spot welding, and the spring (42) and the washer (43) are fixed by spot welding.

8. An installation method for an anti-denting device for embedded parts as described in any one of claims 1 to 7, characterized in that: Includes the following steps: Step 1: Based on the construction documents, clarify the model, specifications and installation requirements of the embedded parts, select the embedded parts that meet the requirements, and after signing and confirming, check the integrity of the identification information and the appearance of the embedded parts to ensure that there are no quality problems. Step 2: According to the coordinates marked on the design drawings, transport the processed embedded parts to the installation location, and place them in place according to the positioning lines marked on site to ensure that the embedded parts are roughly in the design position. Step 3: Use a crowbar or hand chain hoist in conjunction with a baseline to accurately correct the position of the embedded parts and adjust their horizontal and vertical alignment. For large embedded parts with significant weight, a crane or tower crane may be needed to assist in positioning to ensure the embedded parts remain stable and do not wobble during the correction process. Step 4: Use four reinforcement bars (2) as the main body of reinforcement, and weld four nuts (3) on the reinforcement bars (2) according to the principle of four corners. Weld the four reinforcement bars (2) to form a grid frame. Tie the grid frame to the structural reinforcement bars (5) with binding wire. Screw the four adjusting bolts (4) into the four nuts (3) respectively. Rotate the screw (41) to make the gasket abut against the rear end face of the embedded part body (1) to accurately control the flatness of the embedded part body (1) and ensure that the installation deviation meets the design requirements. Step 5: Conduct a comprehensive inspection to ensure that the model and quantity of the embedded parts are consistent with the design, confirm that the front and back of the embedded parts are facing correctly, check whether the installation elevation, flatness, and center position meet the specifications, and at the same time check the stability of the grid frame to ensure that there is no risk of displacement during the concrete pouring process. Step Six: After passing the self-inspection, mark the installation status of the embedded part in the embedded part positioning information table and the site diagram. After the supervisor or relevant acceptance personnel have accepted it, check the mark with a red pen to confirm and complete the installation process.

9. The installation method of the pre-embedded part anti-dent device according to claim 8, characterized in that: When welding the nut (3) to the reinforcing bar (2) in step four, it is necessary to ensure that the perpendicularity deviation of the thread is ≤1.5° and the welding length is ≥10mm.

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