A pre-embedded part installation positioning and leveling cross and a method of using the same

By using a pre-embedded part installation positioning and leveling cross, combined with an aluminum alloy flat strip, a spirit level groove, and a level, the problem of leveling efficiency and accuracy caused by multiple measurements of the pre-embedded part was solved, achieving rapid and accurate positioning of the pre-embedded part and adjustment of its levelness.

CN117513777BActive Publication Date: 2026-06-05STATE GRID NINGXIA ELECTRIC POWER CO +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID NINGXIA ELECTRIC POWER CO
Filing Date
2023-12-06
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing technologies, the position and level of embedded parts need to be measured multiple times in different directions, which leads to a decrease in leveling efficiency and accuracy.

Method used

A pre-embedded installation positioning and leveling cross is used, including an aluminum alloy flat strip, a spirit level groove and a level, combined with multiple scale lines, for rapid leveling on the X, Y and Z axes. Precise positioning and leveling adjustment are achieved through the triangular cone apex and scale lines.

Benefits of technology

This improved the efficiency and accuracy of positioning and leveling of embedded parts, reduced measurement errors, ensured the alignment of the center and axis of embedded parts, and improved construction quality and efficiency.

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Abstract

The application provides a pre-embedded part installation positioning leveling cross and a use method thereof, and relates to the technical field of pre-embedded part construction. The pre-embedded part installation positioning leveling cross comprises a cross body, the cross body comprises two aluminum alloy flat strips, the two aluminum alloy flat strips are connected perpendicularly at the middle positions, triangular pyramid tops are fixedly arranged at the upper ends of the two aluminum alloy flat strips, and level bubble grooves are formed in the upper ends of the two aluminum alloy flat strips and one side of the triangular pyramid tops. The use method of the cross is to set level bubble levels in the X-axis and Y-axis directions, adjust the levelness of the pre-embedded part, set multiple scale lines on the length direction and the height direction of the pre-embedded part, and align the center and the axis of the pre-embedded part. The pre-embedded part positioning cross can effectively calibrate the center and the axis of the pre-embedded part and measure the levelness of the pre-embedded part, so that the positioning and leveling efficiency is improved and the accuracy is improved.
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Description

Technical Field

[0001] This invention relates to the field of embedded part construction technology, specifically to a cross-shaped ruler for installing, positioning and leveling embedded parts and its usage method. Background Technology

[0002] Embedded parts are connectors or fasteners that are pre-installed in components or structures before construction, for subsequent installation of other components or equipment. Embedded parts are usually made of metal or plastic and include bolts, nuts, screws, expansion bolts, and welded parts. In construction projects such as buildings, bridges, and roads, embedded parts can improve construction efficiency and connection quality, and reduce construction difficulty and cost. During the construction of embedded parts, it is necessary to measure and adjust the position and level of the embedded parts to ensure the connection quality and stability between the embedded parts and the subsequently installed components or equipment.

[0003] In the existing technology, workers can use tools such as levels, laser rangefinders, and measuring rulers to measure the position and level of embedded parts. These tools can help workers accurately determine the position and level of embedded parts and make adjustments. However, in the process of measuring the position and level, it is often necessary to make multiple measurements in different directions before the X-axis, Y-axis and Z-axis can be leveled. This inevitably leads to a decrease in the efficiency of leveling, and multiple measurements will also cause a decrease in the accuracy of the measurement results. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a pre-embedded component installation positioning and leveling cross ruler and its usage method, solving the problem that multiple measurements in different directions are required to achieve leveling of the X, Y, and Z axes, ultimately leading to decreased leveling efficiency and accuracy.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A leveling cross for installing and positioning embedded parts includes a cross body, which includes two aluminum alloy flat strips that are perpendicularly connected at their middle position. A triangular pyramid apex is fixedly provided at the upper end of each of the two aluminum alloy flat strips. A spirit level groove is provided on one side of the upper end of each of the two aluminum alloy flat strips and the triangular pyramid apex. A level is fixedly provided inside each of the two spirit level grooves. Multiple graduation lines are provided on both sides of the two aluminum alloy flat strips, i.e., in the length direction and at the ends, i.e., in the height direction.

[0009] Preferably, the cross scale body is made of aluminum alloy and is precision machined by a VMC850L CNC machine tool. The cross scale body is 60mm high, and the length of each side of the multiple scale lines is 200mm with the center as the ray point. Among the multiple scale lines, the two sides, i.e. the length direction, are aligned with the center and axis of the cross scale body.

[0010] The method for using the cross-grip for installing, positioning, and leveling the above-mentioned embedded parts includes the following steps:

[0011] S1: Set up X and Y axis control points for embedded parts on the periphery of the foundation, use external positioning points to measure the positioning of embedded parts, and check the main transformer axis verification record at the same time.

[0012] S2: Next, the foundation embedded parts are positioned, and the virtual axes of the embedded parts in the X and Y directions are determined by using a theodolite;

[0013] S3: The position of the crosshair body is determined by observing the embedded part through the virtual axis. To determine the position of the embedded part, firstly, the center point of the embedded part is located by measuring the X-axis and Y-axis with a theodolite. The crosshair body is placed on the embedded part, and the intersection of the crosshair body is aligned with the center point of the embedded part. Then, the position of the embedded part is adjusted on the xoy plane so that the two axes of the crosshair body are longitudinally coincident with the X-axis and Y-axis respectively. After the positioning of the embedded part on the xoy plane is completed, the level bubble on the two axes of the crosshair is adjusted so that they both reach the horizontal midpoint position. Finally, the positioning of the embedded part on the Z-axis is completed by making the top of the triangular pyramid of the crosshair body completely coincide with the horizontal direction of the X-axis and Y-axis respectively, or by using the vertical scale lines at both ends of the crosshair body.

[0014] S4: Recheck and fine-tune the positions of the X-axis, Y-axis and Z-axis to ensure they all meet the positioning requirements;

[0015] S5: After the position adjustment is completed, the embedded part fixing device consists of angle steel, bolts, upper adjusting nut and lower fastening nut. After the embedded part is adjusted into place, fix the angle steel and tighten the fastening nut to complete the positioning.

[0016] Preferably, during the leveling process of the crosshair body, real-time effect checks are required. Specifically, a theodolite is used to measure the position of the crosshair and the embedded parts. One person measures and another person adjusts. The adjustment of the embedded parts has no effect on the axis. After the axis is adjusted to the correct position, the levelness is adjusted using the crosshair level bubble.

[0017] Preferably, safety precautions should be taken when installing embedded parts, including wearing helmets, gloves and safety shoes.

[0018] Preferably, after installation, the installation of the embedded parts needs to be inspected to ensure that each embedded part meets the requirements. At the same time, the work site needs to be cleaned to remove debris and dust.

[0019] (III) Beneficial Effects

[0020] The present invention provides a pre-embedded part installation positioning and leveling cross ruler and its usage method, which has the following beneficial effects: When installing and positioning the pre-embedded part, leveling can be achieved using only the cross ruler body. The cross ruler body has a triangular pyramid apex fixed at the upper end of each aluminum alloy flat strip, which can be used for aiming and alignment of observation instruments, facilitating the measurement process. A spirit level is set along the X and Y axes, which can be used to adjust the levelness of the pre-embedded part. Multiple scale lines are set on both sides (length direction) and the ends (height direction), which can be used for alignment with the center and axis of the pre-embedded part. Ultimately, the pre-embedded part positioning cross ruler can effectively calibrate the center and axis of the pre-embedded part and measure its levelness, improving both positioning and leveling efficiency and accuracy. Attached Figure Description

[0021] Figure 1 This is an axial side view of the crosshair body of the present invention;

[0022] Figure 2 This is a schematic diagram illustrating the principle of external control points used in this invention;

[0023] Figure 3 This is a side view schematic diagram illustrating the principle of external control points used in this invention;

[0024] Figure 4 A side view schematic diagram illustrating the principle of determining the X-axis and Y-axis directions of the embedded part in this invention;

[0025] Figure 5 A schematic diagram illustrating the axial side principle for determining the embedded part in the X and Y axis directions according to the present invention;

[0026] Figure 6 A side view schematic diagram illustrating the principle of determining the location of embedded parts according to the present invention;

[0027] Figure 7 This is a schematic diagram of the axonometric principle for determining the position of the embedded part according to the present invention;

[0028] Figure 8 This is a schematic diagram illustrating the principle of adjusting the levelness of embedded parts using a spirit level in this invention.

[0029] Figure 9 This is a schematic diagram of the pre-embedded part fixing according to the present invention;

[0030] Figure 10 This is a schematic diagram showing the pre-embedded parts of the present invention after installation.

[0031] The components include: 1. Triangular pyramid apex; 2. Aluminum alloy flat strip; 3. Scale lines; 4. Level bubble groove; 5. Level instrument; 6. Cross ruler body. Detailed Implementation

[0032] 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.

[0033] Example 1:

[0034] like Figure 1 As shown, this embodiment of the invention provides a leveling crosshair for installing and positioning embedded parts. The crosshair body 6 includes two aluminum alloy flat strips 2, which are perpendicularly connected at their midpoints. A triangular pyramid apex 1 is fixedly installed at the upper end of each of the two aluminum alloy flat strips 2, which can be used for aiming and aligning the observation instrument, facilitating the measurement process. A bubble level groove 4 is provided on one side of the upper end of each of the two aluminum alloy flat strips 2 and the triangular pyramid apex 1. A level 5 is fixedly installed inside each of the two bubble level grooves 4. By setting the bubble level 5 along the X and Y axes, the levelness of the embedded part can be adjusted. Multiple scale lines 3 are provided on both sides (length direction) and the end (height direction) of the cross ruler 2, which can be used to align with the center and axis of the embedded part. The cross ruler body 6 is made of aluminum alloy and is precision machined by a VMC850L CNC machine tool, so that the error is less than 0.05mm, which improves the accuracy of measurement. The cross ruler body 6 is 60mm high, and the multiple scale lines 3 are 200mm long on each side with the center as the ray point. The multiple scale lines 3 on both sides (length direction) are aligned with the center and axis of the cross ruler body 6. Ultimately, the cross ruler for positioning embedded parts can effectively mark the center and axis of embedded parts and measure the levelness of embedded parts.

[0035] The present invention discloses a method for using a cross-shaped ruler for positioning and leveling embedded parts during installation, comprising the following steps:

[0036] S1: As Figure 2-3 As shown, firstly, control points for the X and Y axes of the embedded parts are set on the periphery of the foundation. At the same time, the B and C phase main transformer axes of the foundation embedded parts installation position are determined. B is used as a reference phase, which corresponds to the X axis, making it easier to position and measure. Then, the embedded parts positioning measurement is carried out using external positioning points to reduce error accumulation. The B and C phase main transformer axis verification records are checked. The specific inspection results are: the axis deviation is within 2mm, and the pass rate is 100%.

[0037]

[0038] The results show that the error of setting external control points for the foundation is controllable and the construction is feasible;

[0039] S2: As Figure 4-5 As shown, the foundation embedded parts are then positioned, and the virtual axes of the embedded parts in the X and Y directions are determined using a theodolite;

[0040] S3: As Figure 6-7 As shown, the position of the embedded part is determined by observing the virtual axis to locate the crosshair body.

[0041] When determining the location, firstly, a theodolite is used to measure the center point of the embedded part on the X and Y axes. The crosshair body is then placed on the embedded part, aligning the intersection of the crosshair body with the center point of the embedded part. Next, the position of the embedded part is adjusted on the xoy plane, so that the two axes of the crosshair body coincide with the longitudinal direction of the X and Y axes respectively. After the embedded part is positioned on the xoy plane, the level bubble on the two axes of the crosshair is adjusted so that both reach the horizontal midpoint position. Finally, the embedded part is positioned on the Z axis by making the top triangular pyramid 1 of the crosshair body 6 completely coincide with the horizontal direction of the X and Y axes respectively, or by using the vertical scale lines at both ends of the crosshair body 6. During the leveling process of the crosshair body, real-time effect checks are required. Specifically, a theodolite is used to measure the position of the crosshair and the embedded part, with one person measuring and another adjusting. The adjustment of the embedded part has no effect on the axis. After the axis is adjusted to the correct position, the levelness is adjusted using the crosshair level bubble. Finally, this method eliminates cumulative errors, reduces workload, and improves measurement accuracy.

[0042] S4: Recheck and fine-tune the positions of the X-axis, Y-axis and Z-axis to ensure they all meet the positioning requirements;

[0043] S5: As Figure 9-10 As shown, after the position adjustment is completed, the pre-embedded part fixing device consists of angle steel, bolts, upper adjusting nut and lower fastening nut. After the pre-embedded part is adjusted into place, the angle steel is fixed and the fastening nut is tightened to complete the positioning, which can effectively prevent the pre-embedded part from tilting and shifting during concrete pouring.

[0044] It is important to note that safety precautions must be taken when installing embedded parts, including wearing helmets, gloves, and safety shoes. After installation, a quality inspection of the embedded parts is required to ensure that each part meets the requirements. The work site should also be cleaned to remove debris and dust.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for using a cross-shaped ruler for positioning and leveling during the installation of embedded parts, characterized in that... The embedded part installation positioning and leveling cross ruler includes a cross ruler body (6), the cross ruler body (6) includes two aluminum alloy flat strips (2), the two aluminum alloy flat strips (2) are perpendicularly connected to each other at the middle position; a triangular pyramid apex (1) is fixedly provided at the upper end of each of the two aluminum alloy flat strips (2), a spirit level groove (4) is opened on one side of the upper end of each of the two aluminum alloy flat strips (2) and the triangular pyramid apex (1), a level (5) is fixedly provided inside each of the two spirit level grooves (4), and multiple scale lines (3) are provided on both sides of the two aluminum alloy flat strips (2) in the length direction and at the ends in the height direction; the method is applied to the cross ruler body. Includes the following steps: S1: Set control points for the X and Y axes of the embedded parts around the foundation, and use external positioning points to measure the positioning of the embedded parts. At the same time, check the verification records of the B-phase and C-phase main transformer axes. S2: Then position the foundation embedded parts and use a theodolite to determine the virtual axes of the embedded parts in the X and Y directions. S3: Observe the position of the embedded parts positioning crosshair body (6) through the virtual axes to determine the position of the embedded parts. When determining, first use a theodolite to measure the center point of the embedded part's position on the X and Y axes, place the crosshair body (6) on the embedded parts, and align the intersection of the crosshair body (6) with the center point of the embedded parts. Then adjust the position of the embedded parts on the xoy plane so that the crosshair body (6) is aligned with the center point of the embedded parts. The two axes are respectively aligned with the X-axis and Y-axis longitudinally. After the embedded part is positioned on the xoy plane, the level bubble on the two axes of the cross ruler is adjusted so that they both reach the horizontal midpoint position. Finally, the embedded part is positioned on the Z-axis by making the top triangular pyramid (1) of the cross ruler body (6) completely aligned with the horizontal direction of the X-axis and Y-axis, or by using the vertical scale lines at both ends of the cross ruler body (6). S4: Check and fine-tune the positions of the X-axis, Y-axis and Z-axis again so that they all meet the positioning requirements. S5: After the position adjustment is completed, the embedded part fixing device consists of angle steel, bolts, upper adjusting nut and lower fastening nut. After the embedded part is adjusted to the position, the angle steel is fixed and the fastening nut is tightened to complete the positioning.

2. The method of using a cross-grip for installing, positioning, and leveling embedded parts according to claim 1, characterized in that, During the leveling process of the cross ruler body (6), real-time effect checks are required. Specifically, the position of the cross ruler and the embedded parts is measured using a theodolite. One person measures and another person adjusts. The adjustment of the embedded parts has no effect on the axis. After the axis is adjusted to the correct position, the levelness is adjusted using the cross ruler level bubble.

3. The method of using a cross-grip for installing, positioning, and leveling embedded parts according to claim 1, characterized in that, When installing embedded parts, safety precautions must be taken, including wearing helmets, gloves, and safety shoes.

4. The method of using a cross-grid for installing, positioning, and leveling embedded parts according to claim 1, characterized in that, After installation, a quality inspection of the embedded parts is required to ensure that each embedded part meets the requirements. At the same time, the work site needs to be cleaned up to remove debris and dust.

5. The method of using a cross-grip for installing, positioning, and leveling embedded parts according to claim 1, characterized in that, The cross ruler body (6) is made of aluminum alloy and is precision machined by a VMC850L CNC machine tool.

6. The method of using a cross-grip for installing, positioning, and leveling embedded parts according to claim 1, characterized in that, The cross-shaped body (6) is 60mm high, and each of the multiple scale lines (3) with the center as the ray point is 200mm long. Among the multiple scale lines (3), the two sides, i.e. the length direction, are aligned with the center and axis of the cross-shaped body (6).