A three-point laser hole alignment correction device for precast wall sleeves

Abstract

This invention provides a three-point laser alignment device for precast wall sleeves, comprising two base end plates that are adjustable and telescopically extendable along their length; the two base end plates are connected by a telescopic adjustment component; a base leveling device is provided below each base end plate for adjusting the base end plate to be horizontal; and a rebar alignment device, detachably mounted on the base end plates, for aligning the reserved rebar with the pre-embedded sleeve hole in the precast wall. This invention offers advantages such as high precision, ease of operation, and safety and reliability, significantly improving the efficiency and accuracy of precast wall installation alignment, and is suitable for various types of precast wall installation alignment.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a three-point laser hole alignment device for prefabricated wall sleeves. Background Technology

[0002] In existing methods for aligning precast wall sleeves, construction workers typically rely on touch and experience, using a hammer and a plane mirror to determine the position and angle of the precast reinforcing bars. This leads to uncertainty and inefficiency in the operation. Furthermore, if the precast wall is not aligned correctly during its descent and adjustments are needed, it can easily injure workers, causing accidents. Moreover, the limited space between the precast shear wall and the precast reinforcing bars restricts the operator's ability to make effective adjustments and corrections. Additionally, the potentially large errors in the pre-embedding and fixing of the precast wall reinforcing bars, coupled with factors such as improper operation during concrete pouring, accumulate and increase errors, severely affecting the accuracy of the precast reinforcing bars and making alignment even more difficult. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a three-point laser hole alignment device for precast wall sleeves that is applicable to both half-sleeves and full-sleeves.

[0004] The specific technical solution is as follows:

[0005] A three-point laser hole alignment device for prefabricated wall sleeves includes:

[0006] Two base end plates are adjustable in length; the two base end plates are connected by an adjustable telescopic component; and a base leveling device is provided below each base end plate to adjust the base end plate to be horizontal; and

[0007] The rebar alignment device is detachably mounted on the base end plate to align the reserved rebar with the embedded sleeve hole of the precast wall.

[0008] Optionally, the rebar straightening device includes a bearing plate and a limiting plate movably mounted on the bearing plate. The bearing plates on both sides of the limiting plate are provided with scale lines, and the end of the limiting plate is provided with an indicator needle for indicating the scale lines.

[0009] Optionally, the rebar correction device further includes a semi-transparent plane mirror device disposed on the limiting plate and a laser emitting component vertically disposed between the semi-transparent plane mirror device and the limiting plate. The laser emitting component emits laser light that passes through the semi-transparent plane mirror device to the bottom of the precast wall, and the laser reflection spot can be observed on the semi-transparent plane mirror device.

[0010] Optionally, the semi-transparent plane mirror device is rotatable.

[0011] Optionally, the limiting plate is set in a semi-circular shape on the side near the reserved reinforcing bar.

[0012] Optionally, the semi-transparent plane mirror device is provided with circular markings to limit the range of the laser spot reflected back.

[0013] Optionally, the base leveling device includes a horizontal bubble leveler mounted on the base end plate and an adjusting bolt mounted on the lower end of the base end plate.

[0014] Optionally, the telescopic adjustment component includes an adjustment rod and a fixing component. Both base end plates are provided with sliding grooves to accommodate the end of the adjustment rod, and the side wall of the base end plate is provided with an elongated groove. The fixing component passes through the elongated groove to fix the adjustment rod inside the adjustment rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The three-point laser alignment device for precast wall sleeves of this invention aligns with the control line using adjusting bolts and adjusts the level using a horizontal control line and a level bubble meter. The arc-shaped end of the limiting plate, in conjunction with an index needle, measures the distance between the positioning line and the reserved reinforcing bar, precisely correcting and fixing the reserved reinforcing bar to ensure it is within the deviation range for alignment with the shear wall's reserved sleeve. The laser's main control switch is turned on, and the laser emitted by the laser mounted on the arc-shaped end of the limiting plate passes through the semi-transparent plane mirror device. The laser spot on the semi-transparent plane mirror device is observed to fall within the circle marking line. The precast wall's orientation is adjusted, and after laser alignment and confirmation, the precast wall is lowered until it is completely within the reserved sleeve. The precast wall is stabilized, the adjusting rod is removed, the base end plate is disassembled, and the precast wall is completely lowered, completing the hole alignment process for the precast wall's reserved sleeve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the three-point laser hole-aligning device for prefabricated wall sleeves provided in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the construction section of the three-point laser hole-aligning device for prefabricated wall sleeves provided in an embodiment of the present invention.

[0019] In the diagram: 1. Base end plate; 11. Telescopic adjustment component; 111. Adjustment rod; 112. Fixing component; 12. Base leveling device; 121. Horizontal bubble leveler; 122. Adjustment bolt; 2. Reinforcing bar correction device; 21. Bearing plate; 22. Limiting plate; 23. Scale line; 24. Index needle; 25. Semi-transparent plane mirror device; 26. Laser emission assembly; 27. Circle marking line; 3. Embedded sleeve hole; 4. Reserved reinforcing bar; 5. Precast wall. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0023] The three-point laser hole alignment device for prefabricated wall sleeves provided in this invention refers to... Figures 1-2 ,include:

[0024] The two base end plates 1 are adjustable in length to accommodate precast walls 5 of different lengths. After adjusting the length of the two base end plates 1 to align with the control line in the length direction, the length direction of the two base end plates 1 is locked by bolts to ensure stability and accuracy. The two base end plates 1 are connected by a telescopic adjustment piece 11, which allows for easy adjustment of the distance between the two base end plates 1 to accommodate precast walls 5 of different widths. This design makes operation more flexible and can be adjusted according to different needs. Furthermore, a base leveling device 12 is provided below the base end plates 1 to adjust the base end plates 1 to be horizontal, ensuring that the base end plates 1 remain horizontal, thereby improving the accuracy and stability of the correction of the reserved reinforcing bars 4.

[0025] The rebar alignment device 2, detachably mounted on the base end plate 1, is used to align the reserved rebar 4 with the embedded sleeve hole 3 of the precast wall 5. This design makes operation more convenient, allowing the rebar alignment work to be completed in a short time and improving work efficiency. Furthermore, since the rebar alignment device 2 is detachably mounted on the base end plate 1, it facilitates maintenance and replacement, extending the equipment's service life. In summary, this device can significantly improve the accuracy and efficiency of aligning the reserved rebar 4, and is convenient to operate and maintain.

[0026] In this embodiment, the telescopic adjustment member 11 includes an adjustment rod 111 and a fixing member 112. Both base end plates 1 are provided with smooth sliding grooves to accommodate the sliding of the end of the adjustment rod 111. The upper side wall of the base end plate 1 is provided with an elongated groove. The fixing member 112 passes through the elongated groove to fix the adjustment rod 111 inside the adjustment rod 111. The length and width of the elongated groove can meet the installation requirements of the fixing member 112. The fixing member 112 passes through the elongated groove to firmly fix the adjustment rod 111 inside the adjustment rod 111, which not only increases the positional stability of the adjustment rod 111, but also avoids any movement or loosening that may occur during the adjustment process. The fixing member 112 can be set as a fixing bolt. This bolt has high strength and durability and can withstand the test of long-term use. The length telescopic adjustment setting of the base end plate 1 can also be set in the same way as this structure. When it is necessary to adjust the distance between the two base end plates 1, the construction personnel can operate it through the adjustment rod 111. During the adjustment process, when the distance between the two base end plates 1 is aligned with the control line in the width direction, the construction personnel only need to fix the adjustment rod 111 to the two base end plates 1 with the fixing bolts. The telescopic adjustment component 11 in this embodiment has excellent adjustment performance and stability, which can meet the needs of construction personnel for precise control of the distance between the two base end plates 1. At the same time, its simple and easy-to-use design allows any user to operate it easily.

[0027] After aligning the two base end plates 1 with the control line, the reserved reinforcing bars 4 are adjusted and positioned by the reinforcing bar straightening device 2. In this embodiment, the reinforcing bar straightening device 2 includes a bearing plate 21 and a limiting plate 22 movably disposed on the bearing plate 21. Scale lines 23 are provided on the bearing plates 21 on both sides of the limiting plate 22. An indicator needle 24 for indicating the scale lines 23 is provided at the end of the limiting plate 22. The side of the limiting plate 22 closest to the reserved reinforcing bars 4 is semi-arc-shaped, and the indicator needle 24 is fixedly disposed on the limiting plate. On plate 22, and tangentially set at the arc shape of limiting plate 22; during adjustment, according to the distance from the shear wall edge line to the reserved steel bar 4 designed in the drawing, align the index needle 24 on the limiting plate 22 with the scale displaying the distance, and then fix the index needle 24 on the limiting plate 22 with bolts. Observe whether the position of the reserved steel bar 4 is aligned with the limiting plate 22. If it is not aligned, use a construction tool to gently tap the reserved steel bar 4 to the limiting plate 22 to correct the position of the reserved steel bar 4.

[0028] Specifically, the rebar alignment device 2 also includes a semi-transparent plane mirror device 25 mounted on the limiting plate 22 and a laser emitting component 26 vertically positioned between the semi-transparent plane mirror device 25 and the limiting plate 22. The semi-transparent plane mirror device 25 can be configured as a semi-transparent plane reflector, which can both transmit and reflect the bottom of the precast wall 5. The laser emitting component 26 can be configured as a laser pointer. This device has at least three laser emitting components 26, and the three sets of laser emitting components 26 form a stable triangular structure. This structure is used to determine whether the position of the overall precast wall 5 is accurate, which can save costs and quickly and efficiently align the precast wall 5 with the pre-embedded sleeve hole 3. The semi-transparent plane mirror device 25 allows the laser emitted by the laser emitting component 26 to pass through it and be directed towards the bottom of the precast wall 5. At the same time, it can reflect the light spot that appears after the laser hits the precast wall 5. Therefore, the position of the laser relative to the pre-embedded sleeve hole 3 can be easily observed, and the position of the precast wall 5 can be adjusted according to the distance between the laser pointer and the reserved rebar 4 to achieve precise alignment.

[0029] After the position of the reserved reinforcing bar 4 is corrected, the laser emitting component 26 can be activated. The laser emitting component 26 emits a laser beam that passes through the semi-transparent plane mirror device 25. The position of the emitted laser beam illuminating the bottom of the precast wall 5 can be clearly seen on the device, thus accurately observing the position of the laser beam relative to the embedded sleeve hole 3. Based on the distance, the position of the precast wall 5 can be adjusted to achieve precise alignment. The reinforcing bar correction device 2 combines the semi-transparent plane mirror device 25 on the limiting plate 22 and the laser emitting component 26. The laser emitting component 26, with its stable triangular structure, determines the accuracy of the overall position of the precast wall 5. It also saves costs and allows for quick and efficient alignment with the embedded sleeve hole 3. By observing the position of the laser beam on the semi-transparent plane mirror device 25, the position of the precast wall 5 can be accurately adjusted to achieve precise alignment. This method can improve construction efficiency and effectively ensure project quality.

[0030] Specifically, the semi-transparent plane mirror device 25 is rotatable. Both ends of the semi-transparent plane mirror device 25 are mounted on the limiting plate 22 via rotatable shafts, allowing the semi-transparent plane mirror device 25 to rotate 360°. The rotatable shafts have a self-locking function, allowing construction personnel to adjust the angle of the semi-transparent plane mirror device 25 according to specific construction conditions. This not only greatly improves the flexibility of the semi-transparent plane mirror device 25 but also makes it easy to adjust the angle for observation. Therefore, it expands the field of view, helping construction personnel to clearly see details and better observe the internal situation, thereby more accurately determining the construction plan.

[0031] The semi-transparent plane mirror device 25 is equipped with circular markings 27 that limit the range of the laser beam reflected back. By observing the range of the reflected beam within the circular markings 27, the approximate distance of the precast wall 5 can be determined. This observation method provides a basis for adjusting the precast wall 5, making the adjustment more appropriate, and then proceeding to align the hole, improving the installation accuracy of the precast wall 5. Furthermore, the range of the beam within the circular markings 27 can be used to adjust the distance between the precast wall 5 and the reserved reinforcing bar 4 until the most suitable installation distance is achieved. If the precast wall 5 swings too much, the accuracy of the hole alignment cannot meet the construction requirements, and the distance between the precast wall 5 and the reserved reinforcing bar 4 is also too large, even if aligned, deviation will occur again when the precast wall 5 is lowered. Therefore, the circular markings 27 are added to adjust to a suitable distance, which is convenient for construction personnel to operate and improves accuracy. Simultaneously, the beam within the circle further confirms the horizontal state of the device. Therefore, the combined use of the semi-transparent plane mirror device 25 and the circular markings 27 can greatly improve the efficiency and accuracy of the installation work.

[0032] The base leveling device 12 includes a leveling bubble meter 121 mounted on the base end plate 1 and an adjusting bolt 122 located at the lower end of the base end plate 1. By rotating the adjusting bolt 122, the height of the base end plate 1 can be changed to achieve a horizontal state. Simultaneously, by observing whether the bubbles in the leveling bubble meter 121 are in a horizontal position, it can be determined whether the base end plate 1 has been adjusted to a horizontal state. This base leveling device 12 has a simple structure, is easy to use, and can effectively ensure the horizontality of the base end plate 1, improving the overall stability and accuracy of the device.

[0033] The construction method of the three-point laser hole alignment device for prefabricated wall sleeves provided by this invention is as follows: Figure 1-2 This includes the following steps:

[0034] S1: First, align the length and width of the two base end plates 1 with the positioning line to ensure accurate positioning of the base end plates 1. Then, adjust the adjusting bolts 122 below the base end plates 1, observe the display of the level bubble meter 121, and continuously adjust the base end plates 1 to keep them horizontal.

[0035] S2: Install a rebar positioning device on the base end plate 1 so that the limiting plate 22 and the reserved rebar 4 are on the same horizontal line;

[0036] S3: According to the design drawings, the distance from the edge of the shear wall to the reserved steel bar 4 is adjusted by sliding the index needle 24 on the scale to the scale line 23 of that distance. Then, the index needle 24 is fixed by bolts. At the same time, the end of the limiting plate 22 moves and is fixed together with the index needle 24. Then, the reserved steel bar 4 is gently tapped to make it align with the semi-circular shape of the limiting plate 22, thereby completing the correction of the position of the reserved steel bar 4.

[0037] S4: Using the semi-transparent plane mirror device 25 and the laser emitting component 26, after turning on the main control switch of the laser instrument, the laser pointer passes through the semi-transparent plane mirror and the light spot formed on the semi-transparent plane mirror falls within the circle mark 27. Then adjust the position of the precast wall 5 until the light spot is stably placed within the circle mark 27. Then lower the precast wall 5 to align the hole, and lower the precast wall 5 so that the reserved steel bar 4 is completely inserted into the reserved sleeve of the precast wall 5 to stabilize the precast wall 5. Finally, remove the adjusting rod 111, disassemble the base end plate 1, and completely lower the precast wall 5 to complete the process of hoisting the reserved sleeve of the precast wall 5 to align the hole.

[0038] The method of the present invention has the advantages of high precision, simple operation, safety and reliability, which can greatly improve the efficiency and accuracy of precast wall 5 installation and correction, and is applicable to the installation and correction of various types of precast wall 5.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A three-point laser hole alignment device for precast wall sleeves, characterized in that, include Two base end plates are adjustable in length; the two base end plates are connected by an adjustable telescopic component; and a base leveling device is provided below each base end plate to adjust the base end plate to be horizontal; and A rebar alignment device is detachably mounted on the base end plate to align the reserved rebar with the embedded sleeve hole of the precast wall. The rebar alignment device includes a bearing plate and a limiting plate movably mounted on the bearing plate. Scale lines are provided on the bearing plates on both sides of the limiting plate, and an indicator needle for pointing the scale lines is provided at the end of the limiting plate. The rebar alignment device also includes a semi-transparent plane mirror device mounted on the limiting plate and a laser emitting assembly vertically positioned between the semi-transparent plane mirror device and the limiting plate. The laser emitting assembly emits laser light that passes through the semi-transparent plane mirror device to the bottom of the precast wall, and the reflected laser spot can be observed on the semi-transparent plane mirror device. The semi-transparent plane mirror device is rotatable. A circular marking is provided on the semi-transparent plane mirror device to limit the range of the reflected laser spot. The limiting plate is semi-circular in shape on the side closest to the reserved rebar.

2. The three-point laser hole alignment device for precast wall sleeves according to claim 1, characterized in that, The base leveling device includes a horizontal bubble leveler mounted on the base end plate and an adjusting bolt mounted on the lower end of the base end plate.

3. The three-point laser hole alignment device for precast wall sleeves according to claim 1, characterized in that, The telescopic adjustment component includes an adjustment rod and a fixing component. Both base end plates are provided with sliding grooves to accommodate the ends of the adjustment rods, and the side walls of the base end plates are provided with elongated grooves. The fixing component passes through the elongated grooves to fix the adjustment rods inside the adjustment rods.

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