A measuring device for the offset between the center of a line foundation and the center of an anchor bolt foundation

Abstract

The present invention relates to a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation. It includes a measuring device and a positioning device. On the upper and lower sides of the circumference in front of the measuring device, mounting posts are provided. Inside the circumference of the measuring device, three scale plates and three connecting rods are evenly arranged respectively. In the middle of each connecting rod, a high-precision level is provided. Inside the circumference of the inner side of the high-precision level, a horizontal plate is provided. Inside the horizontal plate, four leveling rods are evenly arranged. In the middle of the high-precision level, a horizontal bead is provided. In the middle of the measuring device, a connecting shaft is provided. In the middle of the connecting shaft, a pressing marker is provided. Below the measuring device, a positioning device is provided. Inside the circumference of the bottom of the positioning device, a turntable is provided. In the middle of the turntable, a bearing plate is provided. Six positioning rods are evenly arranged on the circumference of the turntable. Above the middle of each positioning rod, an adjustable magnetic absorber is provided; the present invention has the advantages of convenient use, fast and accurate measurement, and improved work efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of offset measurement, and particularly relates to a device for measuring the offset of the center of a line foundation and the center of an anchor bolt foundation. Background Art

[0002] A transmission tower is a support point for an overhead line. If one circuit is erected on the transmission tower, it is a single-circuit transmission tower; if two circuits are erected on the transmission tower, it is a double-circuit transmission tower. Transmission iron towers are tall structures, very sensitive to tilt deformation, and have high requirements for uneven settlement of the foundation. The common structural forms of transmission tower foundations include independent foundations, spread foundations, and pile foundations. The structural form of transmission iron towers mainly uses steel structures. If the offset of the center of the line foundation and the center of the anchor bolt foundation of the transmission iron tower is excessive, it may cause serious consequences such as the skew or even overturning of the transmission iron tower. Therefore, during the installation of the transmission iron tower, it is necessary to measure the offset of the center of the line foundation and the center of the anchor bolt foundation to ensure that the offset is within a certain range or the offset is zero. Therefore, it is very necessary to provide a device for measuring the offset of the center of the line foundation and the center of the anchor bolt foundation that is easy to use, measures quickly and accurately, and improves work efficiency. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a device for measuring the offset of the center of a line foundation and the center of an anchor bolt foundation that is easy to use, measures quickly and accurately, and improves work efficiency.

[0004] The purpose of the present invention is achieved as follows: A device for measuring the offset of the center of a line foundation and the center of an anchor bolt foundation, which includes a measuring device and a positioning device. On the upper and lower sides of the circumference in front of the measuring device, mounting columns are provided. Inside the mounting columns, rotating handles are provided. Inside the circumference of the measuring device, three scale plates and three connecting rods are evenly arranged respectively. In the middle of each connecting rod, a high-precision level is provided. Inside the circumference of the high-precision level, a horizontal disk is provided. Inside the horizontal disk, four leveling rods are evenly arranged. In the middle of the high-precision level, a horizontal bead is provided. In the middle of the measuring device, a connecting shaft is provided. In the middle of the connecting shaft, a pressing marker is provided. Below the measuring device, a positioning device is provided. Inside the circumference at the bottom of the positioning device, a turntable is provided. In the middle of the turntable, a bearing disk is provided. The bearing disk is fixedly connected to the connecting shaft. Six positioning rods are evenly arranged on the circumference of the turntable. Above the middle of each positioning rod, an adjustable magnetic absorber is provided.

[0005] The described device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation further includes a pressing marker. The pressing marker includes a pressing block, a pushing plate, sliding rods, sliding seats, springs, mounting seats, marking rods, and limiting seats. Above the pressing marker is the pressing block. Below the pressing block is the pushing plate. On the lower left and right sides of the pushing plate are sliding rods. At the bottom left and right sides of the sliding rods are limiting seats. Inside the sliding rods are sliding seats. In the middle below the sliding seat is a spring. Below the spring is a mounting seat. Below the mounting seat is a marking rod.

[0006] The described device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation further includes an adjustable magnetic absorber. The adjustable magnetic absorber includes a sliding plate, a fixing plate, a vertical plate, a fine adjustment screw seat, a fine adjustment screw rod, a magnetic attraction column, a first waist-shaped hole, a second waist-shaped hole, a fixing bolt, a magnetic attraction groove, and a fitting sliding groove. Below the adjustable magnetic absorber is the sliding plate. In the middle of the upper surface of the sliding plate is the first waist-shaped hole. On the upper and lower sides of the lower surface of the sliding plate are fitting sliding grooves, which are slidably connected to the positioning rods. Above the sliding plate is the fixing plate. On the upper and lower sides of the upper surface of the fixing plate are the second waist-shaped holes. On the right side above the second waist-shaped holes are fixing bolts. In the middle above the fixing plate is the magnetic attraction column. Above the left side of the fixing plate is the vertical plate. On the left side of the vertical plate is the fine adjustment screw seat. On the left side of the fine adjustment screw seat is the fine adjustment screw rod, which passes through the fine adjustment screw seat and is fixedly connected to the vertical plate.

[0007] The pushing plate is arranged inside the connecting shaft. The sliding rods, sliding seats, springs, mounting seats, marking rods, and limiting seats are all arranged inside the locator.

[0008] The scale plates and the connecting rods are arranged in an array at 120° with the center of the measuring device as the array point. The included angle between the scale plates and the connecting rods is 60°.

[0009] The pushing plate is a structure formed by a square and a trapezoid. The sliding seat is a structure similar to a "concave" shape.

[0010] The limiting seat is an "L" - shaped structure.

[0011] The usage method of the described device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation includes the following steps:

[0012] Step 1): Measure the center of the anchor bolt foundation: First, place the locator above the anchor bolt foundation, then rotate the positioning rod. The positioning rod rotates on the locator through the turntable so that the positioning rod is roughly aligned with the anchor bolt and then placed on the anchor bolt foundation. Then move the adjustable magnetic absorber. The adjustable magnetic absorber slides on the positioning rod through the fitting chute until it slides above the anchor bolt. Then fix the magnetic absorption column to the anchor bolt through the magnetic absorption groove. Observe whether the level bead of the high-precision level is in the horizontal position. If it is not in the horizontal position, the vertical plate can be slightly moved by driving the fine adjustment screw rod. The vertical plate drives the second waist-shaped hole of the fixing plate to move slightly relative to the fixing bolt until the level bead reaches the horizontal position. At this time, the center of the anchor bolt foundation is the center of the pressing mark of the marker;

[0013] Step 2): Offset measurement: After the center of the anchor bolt foundation is determined, the locator remains fixed. Then rotate the measuring device by turning the turning handle until the scale plate and the positioning rod are on the same vertical line. At this time, the level bead is still in the horizontal position. Whether there is an offset can be directly observed from the scale plate, and the offset amount can be directly read from the scale plate. There are scale lines on the positioning rod. If the scale lines on the scale plate and the positioning rod are the same, it means that the center of the line foundation and the center of the anchor bolt foundation coincide and there is no offset. If the scale lines on the scale plate and the positioning rod are different, it means that the center of the line foundation and the center of the anchor bolt foundation do not coincide and there is a certain offset. The difference between the two is the offset amount;

[0014] Step 3): Mark the center of the anchor bolt foundation: When the center of the line foundation and the center of the anchor bolt foundation do not coincide, the center of the anchor bolt foundation can be marked by pressing the marker to facilitate the adjustment of the center of the line foundation. Press down the pressing block. The pressing block drives the sliding seat to move downward on the sliding rod through the pushing plate. The sliding seat drives the spring, the mounting seat and the marking rod to move downward to mark the center of the anchor bolt foundation. After the marking is completed, the spring drives the sliding seat, the pushing plate, the pressing block, the mounting seat and the marking rod to return to the original position, that is, the measurement of the offset between the center of the line foundation and the center of the anchor bolt foundation and the marking of the center of the anchor bolt foundation are completed.

[0015] Advantages of the present invention: During the use of the present invention, first place the locator above the anchor bolt foundation, then rotate the positioning rod. The positioning rod rotates on the locator through the turntable so that the positioning rod is roughly aligned with the anchor bolt and then placed on the anchor bolt foundation. Then move the adjustable magnetic absorber. The adjustable magnetic absorber slides on the positioning rod through the fitting chute until it slides above the anchor bolt. Then fix the magnetic absorption column to the anchor bolt through the magnetic absorption groove. Observe whether the level bead of the high-precision level is in the horizontal position. If it is not in the horizontal position, the vertical plate can be slightly moved by driving the fine adjustment screw rod. The vertical plate drives the second waist-shaped hole of the fixing plate to move slightly relative to the fixing bolt until the level bead reaches the horizontal position. At this time, pressing the center of the marker is the center of the anchor bolt foundation. Then keep the locator fixed and rotate the measuring device by turning the handle until the scale plate and the positioning rod are on the same vertical line. At this time, the level bead is still in the horizontal position. It can be directly observed from the scale plate whether there is an offset, and the offset amount can be directly read from the scale plate. If the scales on the scale plate and the positioning rod are the same, it indicates that the center of the line foundation and the center of the anchor bolt foundation coincide and there is no offset. If the scales on the scale plate and the positioning rod are different, it indicates that the center of the line foundation and the center of the anchor bolt foundation do not coincide and there is a certain offset. The difference between the two is the offset amount. The measurement is fast and accurate, greatly improving the work efficiency, and it is very simple and convenient to use. The center of the anchor bolt foundation can also be marked by pressing the marker, which is convenient for adjusting the center of the line foundation. Press down the pressing block. The pressing block drives the sliding seat to move downward on the sliding rod through the pushing plate. The sliding seat drives the spring, the mounting seat and the marking rod to move downward to mark the center of the anchor bolt foundation. After the marking is completed, the spring drives the sliding seat, the pushing plate, the pressing block, the mounting seat and the marking rod to return to the original position, that is, the measurement of the offset between the center of the line foundation and the center of the anchor bolt foundation and the marking of the center of the anchor bolt foundation are completed. The present invention has the advantages of convenient use, fast and accurate measurement, and improved work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the top view of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention Figure 1 .

[0017] Figure 2 is the top view of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention Figure 2 .

[0018] Figure 3 is the top view of the measuring device of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention.

[0019] Figure 4 is the top view of the high-precision level of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention.

[0020] Figure 5 This is the top view of the locator of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention.

[0021] Figure 6 This is the bottom view of the locator of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention.

[0022] Figure 7 This is a schematic diagram of the connection structure between the measurer and the locator of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention, as well as a schematic diagram of the installation position of the pressing marker.

[0023] Figure 8 This is a schematic diagram of the structure of the pressing marker of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention Figure 1 。

[0024] Figure 9 This is a schematic diagram of the structure of the pressing marker of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention Figure 2 。

[0025] Figure 10 This is a schematic diagram of the structure of the adjustable magnetic absorber of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention.

[0026] Figure 11 This is the top view of the adjustable magnetic absorber of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention.

[0027] Figure 12 This is the bottom view of the adjustable magnetic absorber of a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation according to the present invention.

[0028] In the figure: 1. Measurer; 2. Locator; 3. Mounting column; 4. Rotating handle; 5. Scale plate; 6. Connecting rod; 7. High-precision level; 8. Connecting shaft; 9. Pressing marker; 10. Horizontal plate; 11. Level ruler; 12. Horizontal bead; 13. Positioning rod; 14. Adjustable magnetic absorber; 15. Turntable; 16. Bearing plate; 17. Pressing block; 18. Pushing plate; 19. Slide bar; 20. Slide seat; 21. Spring; 22. Mounting seat; 23. Marking rod; 24. Limiting seat; 25. Slide plate; 26. Fixed plate; 27. Vertical plate; 28. Fine-tuning screw seat; 29. Fine-tuning screw rod; 30. Magnetic absorption column; 31. First waist-shaped hole; 32. Second waist-shaped hole; 33. Fixed bolt; 34. Magnetic absorption groove; 35. Fitting chute. Detailed implementation mode

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Example 1

[0031] As shown Figure 1-12 in the figure, a measuring device for the offset between the center of a line foundation and the center of an anchor bolt foundation includes a measurer 1 and a locator 2. On the upper and lower sides of the circumference in front of the measurer 1, mounting columns 3 are provided. Inside the mounting columns 3, a rotating handle 4 is provided. Inside the measurer 1, three scale plates 5 and three connecting rods 6 are evenly arranged on the inner circumference. In the middle of the connecting rods 6, high-precision spirit levels 7 are provided. On the inner circumference of the high-precision spirit levels 7, horizontal disks 10 are provided. Inside the horizontal disks 10, four spirit level vials 11 are evenly arranged. In the middle of the high-precision spirit levels 7, horizontal beads 12 are provided. In the middle of the measurer 1, a connecting shaft 8 is provided. In the middle of the connecting shaft 8, a pressing marker 9 is provided. Below the measurer 1, a locator 2 is provided. Inside the bottom circumference of the locator 2, a turntable 15 is provided. In the middle of the turntable 15, a bearing disk 16 is provided. The bearing disk 16 is fixedly connected to the connecting shaft 8. Six positioning rods 13 are evenly arranged on the circumference of the turntable 15. Above the middle of the positioning rods 13, adjustable magnetic absorbers 14 are provided.

[0032] As shown Figure 7-9 in the figure, the measuring device for the offset between the center of a line foundation and the center of an anchor bolt foundation further includes a pressing marker 9. The pressing marker 9 includes a pressing block 17, a pushing plate 18, a sliding rod 19, a sliding seat 20, a spring 21, a mounting seat 22, a marking rod 23 and a limiting seat 24. Above the pressing marker 9, a pressing block 17 is provided. Below the pressing block 17, a pushing plate 18 is provided. On the left and right sides below the pushing plate 18, sliding rods 19 are provided. On the left and right sides of the bottom of the sliding rods 19, limiting seats 24 are provided. Inside the sliding rods 19, a sliding seat 20 is provided. In the middle of the lower part of the sliding seat 20, a spring 21 is provided. Below the spring 21, a mounting seat 22 is provided. Below the mounting seat 22, a marking rod 23 is provided.

[0033] As shown Figure 10-12As shown, the offset measurement device for the center of the line foundation and the center of the anchor bolt foundation further includes an adjustable magnetic absorber 14. The adjustable magnetic absorber 14 includes a sliding plate 25, a fixing plate 26, a vertical plate 27, a fine adjustment screw base 28, a fine adjustment screw rod 29, a magnetic absorption column 30, a first waist-shaped hole 31, a second waist-shaped hole 32, a fixing bolt 33, a magnetic absorption groove 34, and a fitting sliding groove 35. A sliding plate 25 is provided below the adjustable magnetic absorber 14. A first waist-shaped hole 31 is provided in the middle of the upper surface of the sliding plate 25. Fitting sliding grooves 35 are provided on both the upper and lower sides of the lower surface of the sliding plate 25. The fitting sliding grooves 35 are slidably connected to the positioning rods 13. A fixing plate 26 is provided above the sliding plate 25. Second waist-shaped holes 32 are provided on both the upper and lower sides of the upper surface of the fixing plate 26. Fixing bolts 33 are provided on the right side above the second waist-shaped holes 32. A magnetic absorption column 30 is provided in the middle above the fixing plate 26. A vertical plate 27 is provided above the left side of the fixing plate 26. A fine adjustment screw base 28 is provided on the left side of the vertical plate 27. A fine adjustment screw rod 29 is provided on the left side of the fine adjustment screw base 28. The fine adjustment screw rod 29 passes through the fine adjustment screw base 28 and is fixedly connected to the vertical plate 27.

[0034] In the use of the present invention, first place the locator 2 above the anchor bolt foundation, and then rotate the positioning rod 13. The positioning rod 13 rotates on the locator 2 through the turntable 15, so that the positioning rod 13 is roughly aligned with the anchor bolt and then placed on the anchor bolt foundation. Then move the adjustable magnetic absorber 14. The adjustable magnetic absorber 14 slides on the positioning rod 13 through the fitting chute 35 until it slides above the anchor bolt. Then fix the magnetic absorption column 30 to the anchor bolt through the magnetic absorption groove 34. Observe whether the level bead 12 of the high-precision level 7 is in a horizontal position. If it is not in a horizontal position, the vertical plate 27 can be slightly moved by driving the fine adjustment screw rod 29. The vertical plate 27 drives the second waist-shaped hole 32 of the fixing plate 26 to slightly move relative to the fixing bolt 33 until the level bead 12 reaches the horizontal position. At this time, pressing the center of the marker 9 is the center of the anchor bolt foundation. Then keep the locator 2 fixed, and rotate the measuring instrument 1 by rotating the handle 4 until the scale plate 5 and the positioning rod 13 are on the same vertical line. At this time, the level bead 12 is still in a horizontal position, so it can be directly observed from the scale plate 5 whether there is an offset, and the offset amount can be directly read from the scale plate 5. If the scales on the scale plate 5 and the positioning rod 13 are the same, it means that the center of the line foundation and the center of the anchor bolt foundation coincide and there is no offset. If the scales on the scale plate 5 and the positioning rod 13 are different, it means that the center of the line foundation and the center of the anchor bolt foundation do not coincide and there is a certain offset, and the difference between the two is the offset amount. The measurement is fast and accurate, greatly improving the work efficiency, and it is very simple and convenient to use. The center of the anchor bolt foundation can also be marked by pressing the marker 9, which is convenient for adjusting the center of the line foundation. Press down the pressing block 17, and the pressing block 17 drives the sliding seat 20 to move downward on the sliding rod 19 through the pushing plate 18. The sliding seat 20 drives the spring 21, the mounting seat 22 and the marking rod 23 to move downward to mark the center of the anchor bolt foundation. After the marking is completed, the spring 21 drives the sliding seat 20, the pushing plate 18, the pressing block 17, the mounting seat 22 and the marking rod 23 to return to the original position, that is, the measurement of the offset between the center of the line foundation and the center of the anchor bolt foundation and the marking of the center of the anchor bolt foundation are completed. The present invention has the advantages of convenient use, fast and accurate measurement, and improved work efficiency.

[0035] Embodiment 2

[0036] As Figure 1-12As shown in the figure, a device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation includes a measuring device 1 and a positioning device 2. On the upper and lower sides of the circumference in front of the measuring device 1, mounting columns 3 are provided. Inside the mounting columns 3, a rotating handle 4 is provided. Inside the circumference of the measuring device 1, three scale plates 5 and three connecting rods 6 are evenly arranged respectively. In the middle of each connecting rod 6, a high-precision level 7 is provided. Inside the circumference of the high-precision level 7, a horizontal disk 10 is provided. Inside the horizontal disk 10, four level gauges 11 are evenly arranged. In the middle of the high-precision level 7, a horizontal bead 12 is provided. In the middle of the measuring device 1, a connecting shaft 8 is provided. In the middle of the connecting shaft 8, a pressing marker 9 is provided. Below the measuring device 1, a positioning device 2 is provided. Inside the bottom circumference of the positioning device 2, a turntable 15 is provided. In the middle of the turntable 15, a bearing disk 16 is provided. The bearing disk 16 is fixedly connected to the connecting shaft 8. Six positioning rods 13 are evenly arranged on the circumference of the turntable 15. Above the middle of each positioning rod 13, an adjustable magnetic absorber 14 is provided.

[0037] As Figure 7-9 shown, the device for measuring the offset between the center of a line foundation and the center of an anchor bolt foundation further includes a pressing marker 9. The pressing marker 9 includes a pressing block 17, a pushing plate 18, a sliding rod 19, a sliding seat 20, a spring 21, a mounting seat 22, a marking rod 23 and a limiting seat 24. Above the pressing marker 9, a pressing block 17 is provided. Below the pressing block 17, a pushing plate 18 is provided. On the left and right sides below the pushing plate 18, sliding rods 19 are provided. On the left and right sides at the bottom of the sliding rods 19, limiting seats 24 are provided. Inside the sliding rods 19, a sliding seat 20 is provided. In the middle below the sliding seat 20, a spring 21 is provided. Below the spring 21, a mounting seat 22 is provided. Below the mounting seat 22, a marking rod 23 is provided.

[0038] As Figure 10-12As shown in the figure, the offset measurement device for the center of the line foundation and the center of the anchor bolt foundation also includes an adjustable magnetic absorber 14. The adjustable magnetic absorber 14 includes a slide plate 25, a fixing plate 26, a vertical plate 27, a fine adjustment screw seat 28, a fine adjustment screw rod 29, a magnetic absorption column 30, a first waist-shaped hole 31, a second waist-shaped hole 32, a fixing bolt 33, a magnetic absorption groove 34, and a fitting sliding groove 35. A slide plate 25 is arranged below the adjustable magnetic absorber 14. A first waist-shaped hole 31 is arranged in the middle of the upper surface of the slide plate 25. Fitting sliding grooves 35 are arranged on both the upper and lower sides of the lower surface of the slide plate 25. The fitting sliding grooves 35 are slidably connected with the positioning rods 13. A fixing plate 26 is arranged above the slide plate 25. Second waist-shaped holes 32 are arranged on both the upper and lower sides of the upper surface of the fixing plate 26. Fixing bolts 33 are arranged on the right side above the second waist-shaped holes 32. A magnetic absorption column 30 is arranged in the middle above the fixing plate 26. A vertical plate 27 is arranged above the left side of the fixing plate 26. A fine adjustment screw seat 28 is arranged on the left side of the vertical plate 27. A fine adjustment screw rod 29 is arranged on the left side of the fine adjustment screw seat 28. The fine adjustment screw rod 29 passes through the fine adjustment screw seat 28 and is fixedly connected with the vertical plate 27.

[0039] For better effect, the push plate 18 is arranged inside the connecting shaft 8, and the slide rod 19, the slide seat 20, the spring 21, the mounting seat 22, the marking rod 23, and the limiting seat 24 are all arranged inside the positioner.

[0040] For better effect, the scale plate 5 and the connecting rod 6 are both arranged in an array at 120° with the center of the measuring device 1 as the array point, and the included angle between the scale plate 5 and the connecting rod 6 is 60°.

[0041] For better effect, the push plate 18 is a structure formed by a square and a trapezoid structure, and the slide seat 20 is a structure similar to a "concave" shape.

[0042] For better effect, the limiting seat 24 is an "L" - shaped structure.

[0043] The using method of the offset measurement device for the center of the line foundation and the center of the anchor bolt foundation includes the following steps:

[0044] Step 1): Measure the center of the anchor bolt foundation: First, place the locator 2 above the anchor bolt foundation, then rotate the positioning rod 13. The positioning rod 13 rotates on the locator 2 through the turntable 15, and after the positioning rod 0 is roughly aligned with the anchor bolt, place it on the anchor bolt foundation. Then move the adjustable magnetic absorber 14. The adjustable magnetic absorber 14 slides on the positioning rod 13 through the fitting chute 35 until it slides above the anchor bolt. Then fix the magnetic column 30 to the anchor bolt through the magnetic slot 34. Observe whether the level bead 12 of the high-precision level 7 is in the horizontal position. If it is not in the horizontal position, the vertical plate 27 can be slightly moved by driving the fine adjustment screw rod 29. The vertical plate 27 drives the second waist-shaped hole 32 of the fixed plate 26 to move slightly relative to the fixed bolt until the level bead 12 reaches the horizontal position. At this time, the center of the anchor bolt foundation is the center of the pressing mark of the marker 9;

[0045] Step 2): Offset measurement: After the center of the anchor bolt foundation is determined, the locator 2 remains fixed. Then rotate the measuring device 1 by rotating the rotating handle 4 until the scale plate 5 and the positioning rod 13 are on the same vertical line. At this time, the level bead 12 is still in the horizontal position. It can be directly observed from the scale plate 5 whether there is an offset, and the offset amount can be directly read from the scale plate 5. There are scale lines on the positioning rod 13. If the scale plate 5 is consistent with the scale lines on the positioning rod 13, it indicates that the center of the line foundation and the center of the anchor bolt foundation coincide and there is no offset. If the scale plate 5 is inconsistent with the scale lines on the positioning rod 13, it indicates that the center of the line foundation and the center of the anchor bolt foundation do not coincide and there is a certain offset. The difference between the two is the offset amount;

[0046] Step 3): Mark the center of the anchor bolt foundation: When the center of the line foundation and the center of the anchor bolt foundation do not coincide, the center of the anchor bolt foundation can be marked by pressing the marker 9 to facilitate the adjustment of the center of the line foundation. Press down the pressing block 17. The pressing block 17 drives the sliding seat 20 to move downward on the sliding rod 19 through the pushing plate 18. The sliding seat 20 drives the spring 21, the mounting seat 22 and the marking rod 23 to move downward to mark the center of the anchor bolt foundation. After the marking is completed, the spring 21 drives the sliding seat 20, the pushing plate 18, the pressing block 17, the mounting seat 22 and the marking rod 23 to return to their original positions, that is, the measurement of the offset between the center of the line foundation and the center of the anchor bolt foundation and the marking of the center of the anchor bolt foundation are completed.

[0047] In the use of the present invention, first place the locator 2 above the anchor bolt foundation, and then rotate the positioning rod 13. The positioning rod 13 rotates on the locator 2 through the turntable 15, so that the positioning rod 13 is roughly aligned with the anchor bolt and then placed on the anchor bolt foundation. Then move the adjustable magnetic absorber 14. The adjustable magnetic absorber 14 slides on the positioning rod 13 through the fitting chute 35 until it slides above the anchor bolt. Then fix the magnetic absorption column 30 to the anchor bolt through the magnetic absorption groove 34. Observe whether the level bead 12 of the high-precision level 7 is in a horizontal position. If it is not in a horizontal position, the vertical plate 27 can be slightly moved by driving the fine adjustment screw rod 29. The vertical plate 27 drives the second waist-shaped hole 32 of the fixing plate 26 to slightly move relative to the fixing bolt 33 until the level bead 12 reaches the horizontal position. At this time, the center of the anchor bolt foundation is the center of the circle where the marker 9 is pressed. Then keep the locator 2 fixed, and rotate the measuring instrument 1 by turning the handle 4 until the scale plate 5 and the positioning rod 13 are on the same vertical line. At this time, the level bead 12 is still in a horizontal position, and it can be directly observed from the scale plate 5 whether there is an offset, and the offset amount can be directly read from the scale plate 5. If the scales on the scale plate 5 and the positioning rod 13 are the same, it indicates that the center of the line foundation and the center of the anchor bolt foundation coincide and there is no offset. If the scales on the scale plate 5 and the positioning rod 13 are different, it indicates that the center of the line foundation and the center of the anchor bolt foundation do not coincide and there is a certain offset, and the difference between the two is the offset amount. The measurement is fast and accurate, greatly improving the work efficiency, and it is very simple and convenient to use. The center of the anchor bolt foundation can also be marked by pressing the marker 9, which is convenient for adjusting the center of the line foundation. Press down the pressing block 17. The pressing block 17 drives the sliding seat 20 to move downward on the sliding rod 19 through the pushing plate 18. The sliding seat 20 drives the spring 21, the mounting seat 22 and the marking rod 23 to move downward to mark the center of the anchor bolt foundation. After the marking is completed, the spring 21 drives the sliding seat 20, the pushing plate 18, the pressing block 17, the mounting seat 22 and the marking rod 23 to return to the original position, that is, the measurement of the offset between the center of the line foundation and the center of the anchor bolt foundation and the marking of the center of the anchor bolt foundation are completed. The present invention has the advantages of convenient use, fast and accurate measurement, and improved work efficiency.

Claims

1. A measuring device for the offset between the center of a line foundation and the center of an anchor bolt foundation, which comprises a measuring instrument and a locator, and is characterized in that: Installation posts are provided on both the upper and lower sides of the circumference in front of the described measuring device. A rotating handle is provided inside the installation posts. Three scale plates and three connecting rods are evenly arranged on the inner circumference of the measuring device. High-precision spirit levels are provided in the middle of the connecting rods. Horizontal disks are provided on the inner circumferences of the high-precision spirit levels. Four spirit levels are evenly arranged inside the horizontal disks. A horizontal bead is provided in the middle of each high-precision spirit level. A connecting shaft is provided in the middle of the measuring device. A pressing marker is provided in the middle of the connecting shaft. A locator is provided below the measuring device. A turntable is provided inside the bottom circumference of the locator. A bearing disk is provided in the middle of the turntable. The bearing disk is fixedly connected to the connecting shaft. Six positioning rods are evenly arranged on the circumference of the turntable. Adjustable magnetic absorbers are provided above the middle of the positioning rods. It further includes a pressing marker, which includes a pressing block, a pushing plate, sliding rods, a sliding seat, a spring, a mounting seat, a marking rod and a limiting seat. The pressing block is provided above the pressing marker. The pushing plate is provided below the pressing block. Sliding rods are provided on both the left and right sides below the pushing plate. Limiting seats are provided on both the left and right sides at the bottom of the sliding rods. A sliding seat is provided inside the sliding rods. A spring is provided in the middle below the sliding seat. The mounting seat is provided below the spring. The marking rod is provided below the mounting seat. It further includes an adjustable magnetic absorber, which includes a sliding plate, a fixing plate, a vertical plate, a fine adjustment screw seat, a fine adjustment screw rod, a magnetic absorption column, a first waist-shaped hole, a second waist-shaped hole, a fixing bolt, a magnetic absorption groove and a fitting sliding groove. The sliding plate is provided below the adjustable magnetic absorber. The first waist-shaped hole is provided in the middle of the upper surface of the sliding plate. Fitting sliding grooves are provided on both the upper and lower sides of the lower surface of the sliding plate. The fitting sliding grooves are slidably connected to the positioning rods. The fixing plate is provided above the sliding plate. The second waist-shaped holes are provided on both the upper and lower sides of the upper surface of the fixing plate. The fixing bolts are provided on the right side above the second waist-shaped holes. The magnetic absorption column is provided in the middle above the fixing plate. The vertical plate is provided above the left side of the fixing plate. The fine adjustment screw seat is provided on the left side of the vertical plate. The fine adjustment screw rod is provided on the left side of the fine adjustment screw seat. The fine adjustment screw rod passes through the fine adjustment screw seat and is fixedly connected to the vertical plate.

2. The measuring device for the offset between the center of a line foundation and the center of an anchor bolt foundation according to claim 1, characterized in that: The pushing plate is provided inside the connecting shaft. The sliding rods, the sliding seat, the spring, the mounting seat, the marking rod and the limiting seat are all provided inside the locator.

3. The measuring device for the offset between the center of a line foundation and the center of an anchor bolt foundation according to claim 1, characterized in that: The scale plates and the connecting rods are arranged in an array at 120° with the center of the measuring device as the array point. The included angle between the scale plates and the connecting rods is 60°.

4. The measuring device for the offset between the center of a line foundation and the center of an anchor bolt foundation according to claim 1, characterized in that: The pushing plate is a structure formed by a square and a trapezoid. The sliding seat is a structure similar to a "concave" shape.

5. The measuring device for the offset between the center of a line foundation and the center of an anchor bolt foundation according to claim 1, characterized in that: The limiting seat is an "L" shaped structure.

6. The using method of the measuring device for the offset between the center of a line foundation and the center of an anchor bolt foundation according to claim 1, characterized in that: It includes the following steps: Step 1): Measure the center of the anchor bolt foundation: First, place the locator above the anchor bolt foundation, then rotate the positioning rod. The positioning rod rotates on the locator through the turntable so that the positioning rod is roughly aligned with the anchor bolt and then placed on the anchor bolt foundation. Then move the adjustable magnetic absorber. The adjustable magnetic absorber slides on the positioning rod through the fitting chute until it slides above the anchor bolt. Then fix the magnetic absorption column to the anchor bolt through the magnetic absorption groove. Observe whether the level bead of the high-precision level is in the horizontal position. If it is not in the horizontal position, the vertical plate can be slightly moved by driving the fine adjustment screw rod. The vertical plate drives the second waist-shaped hole of the fixing plate to move slightly relative to the fixing bolt until the level bead reaches the horizontal position. At this time, the center of the anchor bolt foundation is the center of the circle pressed by the marker; Step 2): Offset measurement: After the center of the anchor bolt foundation is determined, the locator remains fixed. Then rotate the measuring device by turning the handle until the scale plate and the positioning rod are on the same vertical line. At this time, the level bead is still in the horizontal position. It can be directly observed from the scale plate whether there is an offset, and the offset amount can be directly read from the scale plate. There are scale lines on the positioning rod. If the scale lines on the scale plate and the positioning rod are the same, it indicates that the center of the line foundation and the center of the anchor bolt foundation coincide and there is no offset. If the scale lines on the scale plate and the positioning rod are different, it indicates that the center of the line foundation and the center of the anchor bolt foundation do not coincide and there is a certain offset. The difference between the two is the offset amount; Step 3): Mark the center of the anchor bolt foundation: When the center of the line foundation and the center of the anchor bolt foundation do not coincide, the center of the anchor bolt foundation can be marked by pressing the marker to facilitate the adjustment of the center of the line foundation. Press down the pressing block. The pressing block drives the sliding seat to move downward on the sliding rod through the pushing plate. The sliding seat drives the spring, the mounting seat and the marking rod to move downward to mark the center of the anchor bolt foundation. After the marking is completed, the spring drives the sliding seat, the pushing plate, the pressing block, the mounting seat and the marking rod to return to the original position, that is, the measurement of the offset between the center of the line foundation and the center of the anchor bolt foundation and the marking of the center of the anchor bolt foundation are completed.

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