A prestressed anti-buoyancy anchor steel pad positioning and leveling device

Abstract

This utility model discloses a positioning and leveling device for a prestressed anti-buoyancy anchor steel pad, including a base, a leveling bracket, a fixing mechanism, a plumb bob, and multiple spirit levels. The base includes a first mounting plate and a second mounting plate connected sequentially in the vertical direction. A mounting groove for accommodating the steel pad is provided in the middle of the top surface of the first mounting plate. The bottom surface of the mounting groove is parallel to the top surface of the first mounting plate. The depth of the mounting groove is less than the thickness of the steel pad. The plumb bob is located in the middle of the bottom surface of the second mounting plate. Multiple spirit levels are located in the area of ​​the top surface of the first mounting plate outside the mounting groove. The leveling bracket includes three legs hinged to the bottom of the second mounting plate. The length of the legs is adjustable. The fixing mechanism is used to fix the steel pad in the mounting groove. The device provided by this application improves the positioning and leveling accuracy of the steel pad after welding, meets the requirements of high-precision prestressed construction, and reduces the impact on subsequent prestressed anti-buoyancy anchor tensioning construction.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, and in particular to a prestressed anti-buoyancy anchor steel pad positioning and leveling device. Background Technology

[0002] With the expansion of underground space development, areas with high groundwater levels are susceptible to buoyancy, leading to structural uplift, cracking, and even failure. Prestressed anti-buoyancy anchors, by actively applying prestress to counteract buoyancy, have become one of the mainstream solutions. Steel plates, as force-transfer components between the prestressed anti-buoyancy anchors and the structural base slab, need to evenly distribute the prestress to avoid localized stress concentration, while ensuring the coordinated operation of the prestressed anti-buoyancy anchors, steel plates, and the concrete structure. Their installation position and levelness have a decisive impact on the prestressing effect. Currently, traditional construction methods typically involve roughly leveling the steel plate with a single level before directly welding it to the reinforcing bars of the structural base slab. Utility Model Content

[0003] The inventors discovered that using a single level to level the steel pad has low accuracy, making it difficult to meet the requirements of high-precision prestressed construction. Furthermore, the leveled steel pad is prone to displacement or tilting during welding, causing the initial positioning and leveling to fail and affecting subsequent tensioning of the prestressed anti-buoyancy anchor. In view of these problems, this utility model is proposed to provide a positioning and leveling device for the steel pad of a prestressed anti-buoyancy anchor, which overcomes or at least partially solves these problems.

[0004] The present invention proposes a prestressed anti-buoyancy anchor steel pad positioning and leveling device, comprising: a base, a leveling bracket, a fixing mechanism, a plumb bob, and multiple spirit levels;

[0005] The base includes a first mounting plate and a second mounting plate connected sequentially in the vertical direction;

[0006] The top surface of the first mounting plate is provided with a mounting groove for accommodating a steel pad in the middle.

[0007] The bottom surface of the mounting groove is parallel to the top surface of the first mounting plate;

[0008] The depth of the mounting groove is less than the thickness of the steel pad.

[0009] The plumb bob is located in the middle of the bottom surface of the second mounting plate;

[0010] The plurality of spirit levels are located on the top surface of the first mounting plate in the area outside the mounting groove;

[0011] The leveling bracket includes three legs hinged to the bottom of the second mounting plate;

[0012] The length of the outriggers is adjustable;

[0013] The fixing mechanism is used to fix the steel pad in the mounting groove.

[0014] Optionally, a plurality of the spirit levels are spaced apart on the periphery of the top surface of the first mounting plate.

[0015] Optionally, the first mounting plate and the second mounting plate are triangular plates of the same shape, and three spirit levels are provided. The three spirit levels are respectively arranged in the area near the three corners of the top surface of the first mounting plate, and the three support legs are respectively arranged in the area near the three sides of the bottom of the second mounting plate.

[0016] Optionally, the support leg is located in the middle of the side.

[0017] Optionally, the fixing mechanism includes a fixing bolt and a fixing nut, wherein the fixing bolt is used to pass through the second mounting plate, the first mounting plate and the steel pad in the vertical direction and then be threadedly connected to the fixing nut.

[0018] Optionally, the fixing mechanism further includes a fixing washer disposed between the fixing nut and the steel pad.

[0019] Optionally, the outrigger includes a support rod and a telescopic rod. One end of the support rod is hinged to the bottom of the second mounting plate, and the telescopic rod is slidably connected to the support rod. The end of the support rod away from the second mounting plate is provided with a limiting mechanism for restricting the sliding of the telescopic rod.

[0020] Optionally, the support rod is provided with a guide mechanism for guiding the sliding of the telescopic rod.

[0021] Optionally, the support rod includes two support rods spaced apart from each other. One end of the two support rods is connected by a hinge seat, and the other end of the two support rods is connected by a connecting seat. The hinge seat is hinged to the bottom of the second mounting plate. The connecting seat has a through hole. The guide mechanism includes a slider located between the hinge seat and the connecting seat. Both ends of the slider are slidably connected to the two support rods respectively. One end of the telescopic rod is connected to the slider, and the other end of the telescopic rod passes through the through hole.

[0022] Optionally, the limiting mechanism includes a limiting bolt, and the side of the connecting seat is provided with a limiting screw hole, the limiting screw hole communicating with the through hole, and the limiting bolt being installed in the limiting screw hole.

[0023] The beneficial effects of the above-mentioned technical solutions provided by the embodiments of this utility model include at least the following:

[0024] The prestressed anti-buoyancy anchor steel pad positioning and leveling device provided in this application has an installation groove in the middle of the top surface of the first mounting plate for accommodating the steel pad. After the steel pad is installed in the installation groove, the fixing mechanism can fix the steel pad in the installation groove. The cooperation between the installation groove and the fixing mechanism can limit the position of the steel pad, which is beneficial for subsequent positioning and leveling of the steel pad. By setting multiple spirit levels on the top surface of the first mounting plate, the level of each area can be detected simultaneously, thereby cross-verifying the levelness of multiple areas and greatly improving the leveling accuracy of the steel pad. By adjusting the length and rotation angle of the three legs, the bubbles in each spirit level are centered, thus completing the leveling of the steel pad. The leveling operation is simple and the construction efficiency is high. During the leveling process of the steel pad, by ensuring that the plumb bob is always in the preset position, such as the center line of the prestressed anchor rod, the steel pad can be positioned simultaneously during the leveling process. This prevents the steel pad from deviating from the preset position after leveling, greatly improving the positioning and leveling accuracy of the steel pad and meeting the requirements of high-precision prestressed construction. After the steel pad is positioned and leveled, when it needs to be welded to the structural base plate, the depth of the installation groove is less than the thickness of the steel pad, allowing the upper part of the periphery of the steel pad to be exposed, facilitating welding. Through the positioning cooperation between the fixing mechanism and the installation groove, displacement or tilting of the steel pad can be prevented during welding, ensuring that the steel pad still has good positional and horizontal accuracy after welding, greatly reducing the impact on the subsequent tensioning construction of the prestressed anti-buoyancy anchor rod.

[0025] Furthermore, considering that the outriggers will generate some vibration during rotation and length adjustment, this vibration will interfere with the bubble in the spirit level, causing the bubble to temporarily deviate from its theoretical equilibrium position. This results in the bubble not responding in real time to changes in the steel pad's attitude, exhibiting a lag and thus affecting the efficiency of the steel pad's positioning and leveling. This application addresses this by configuring the base as a first mounting plate and a second mounting plate connected sequentially in the vertical direction. The spirit level is placed on the first mounting plate, and the outriggers are hinged to the second mounting plate. This concentrates the vibration generated by the outriggers primarily on the second mounting plate, which can absorb most of the vibration, thereby significantly reducing the vibration transmitted to the first mounting plate and improving the efficiency of the steel pad's positioning and leveling. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of a prestressed anti-buoyancy anchor steel pad positioning and leveling device provided by the present invention;

[0028] Figure 2 for Figure 1 Front view of the prestressed anti-buoyancy anchor steel pad positioning and leveling device in the middle;

[0029] Figure 3 for Figure 1 A top view of the prestressed anti-buoyancy anchor steel pad positioning and leveling device.

[0030] Explanation of icon numbers:

[0031] 100-Prestressed anti-buoyancy anchor steel pad positioning and leveling device;

[0032] 1-Base; 11-First mounting plate; 12-Second mounting plate;

[0033] 2-Leveling bracket; 21-Outrigger; 211-Support rod; 2111-Support rod; 2112-Hinge seat; 2113-Connecting seat; 2114-Through hole; 212-Telescopic rod; 213-Guide mechanism; 2131-Slider; 214-Limiting mechanism; 2141-Limiting bolt;

[0034] 3-Fixing mechanism; 31-Fixing bolt; 32-Fixing nut; 33-Washer;

[0035] 4-Level bubble;

[0036] 5-Steel pad.

[0037] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] The traditional construction method usually involves using a single level to roughly level the steel plate before directly welding it onto the reinforcing bars of the structural base slab.

[0042] The inventors discovered that using a single level to level the steel pad has low accuracy, making it difficult to meet the requirements of high-precision prestressed construction. Furthermore, the leveled steel pad is prone to displacement or tilting during welding, causing the initial positioning and leveling to fail and affecting subsequent tensioning of the prestressed anti-buoyancy anchor. To solve this problem, the inventors attempted to design a positioning and leveling device for the prestressed anti-buoyancy anchor steel pad. They unexpectedly discovered that after placing the steel pad in the mounting groove, leveling using a leveling bracket ensures that the bubbles in each spirit level on the first mounting plate are centered, completing the leveling process. During leveling, a plumb bob can simultaneously position the steel pad, preventing deviation from the preset position after leveling. This significantly improves the positioning and leveling accuracy of the steel pad. Moreover, the positioning coordination between the fixing mechanism and the mounting groove prevents displacement or tilting of the steel pad during welding, ensuring good positional and level accuracy after welding, and greatly reducing the impact on subsequent tensioning of the prestressed anti-buoyancy anchor. Based on this, the present invention provides a prestressed anti-buoyancy anchor bolt steel pad positioning and leveling device. Figures 1 to 3 This is a specific embodiment of the prestressed anti-buoyancy anchor steel pad positioning and leveling device provided by the present invention.

[0043] Please see Figures 1 to 3 The prestressed anti-buoyancy anchor steel pad positioning and leveling device 100 provided in this application includes a base 1, a leveling bracket 2, a fixing mechanism 3, a plumb bob, and multiple spirit levels 4. The base 1 includes a first mounting plate 11 and a second mounting plate 12 connected sequentially in the vertical direction. The top surface of the first mounting plate 11 is provided with a mounting groove for accommodating the steel pad 5. The bottom surface of the mounting groove is parallel to the top surface of the first mounting plate 11. The depth of the mounting groove is less than the thickness of the steel pad 5. The plumb bob is located in the middle of the bottom surface of the second mounting plate 12. Multiple spirit levels 4 are located in the area outside the mounting groove on the top surface of the first mounting plate 11. The leveling bracket 2 includes three legs 21 hinged to the bottom of the second mounting plate 12. The length of the legs 21 is adjustable. The fixing mechanism 3 is used to fix the steel pad 5 in the mounting groove.

[0044] In the technical solution provided by this utility model, the cooperation between the mounting groove and the fixing mechanism 3 can limit the position of the steel pad 5, which is beneficial for the subsequent positioning and leveling of the steel pad 5. By setting multiple spirit levels 4 on the top surface of the first mounting plate 11, the level of each area where the spirit level 4 is located can be detected simultaneously, thereby cross-verifying the levelness of multiple areas and greatly improving the leveling accuracy of the steel pad 5. By adjusting the length and rotation angle of the three support legs 21, the bubbles in each spirit level 4 are located in the center position, thus completing the leveling of the steel pad 5. The leveling operation is simple and the construction efficiency is high. During the leveling process of the steel pad 5, by ensuring that the plumb bob is always in the preset position, such as the center line of the prestressed anchor rod, the position of the steel pad 5 can be simultaneously positioned during the leveling process. This can prevent the steel pad 5 from deviating from the preset position after leveling, greatly improving the positioning and leveling accuracy of the steel pad 5, thereby meeting the requirements of high-precision prestressed construction. After the steel pad 5 is positioned and leveled, its periphery needs to be welded to the structural base plate. Since the depth of the installation groove is less than the thickness of the steel pad 5, the upper part of the periphery of the steel pad 5 can be exposed, which facilitates welding. With the positioning cooperation between the fixing mechanism 3 and the installation groove, the steel pad 5 can be prevented from shifting or tilting during the welding process, ensuring that the steel pad 5 still has good positional and horizontal accuracy after welding, which greatly reduces the impact on the subsequent tensioning construction of the prestressed anti-buoyancy anchor rod.

[0045] It should be noted that, considering the possibility that the area of ​​the steel pad 5 is larger than the mounting groove, a clearance notch is provided on the side wall of the mounting groove on the first mounting plate 11 to expose part of the periphery of the steel pad 5, which facilitates subsequent welding of the periphery of the steel pad 5 to the reinforcing bars of the structural base plate. To improve the positioning accuracy of the mounting groove, the shape of the mounting groove is adapted to the shape of the steel pad 5. Furthermore, to further improve positioning accuracy, a plumb bob is connected to the bottom surface of the second mounting plate 12, which is opposite to the center of the bottom surface of the mounting groove.

[0046] The following will describe, through exemplary illustration, a further detailed or improved implementation or refinement of the prestressed anti-buoyancy anchor steel pad positioning and leveling device 100, in order to further improve its working efficiency, reliability, or for other improvement considerations.

[0047] In some embodiments, multiple bubble levels 4 are spaced apart on the periphery of the top surface of the first mounting plate 11. It should be noted that the periphery refers to the edges around the top surface of the first mounting plate 11. Since the periphery of the first mounting plate 11 is the area furthest from its center, the displacement generated in the periphery area is the greatest when adjusting the levelness of the top surface of the first mounting plate 11. By placing the bubble levels 4 on the periphery, the changes in displacement can be captured more effectively, improving the sensitivity of the bubble level measurement. Furthermore, by spaced apart multiple bubble levels 4, not only is the detection range of the multiple bubble levels 4 expanded, but the levelness of multiple areas can also be cross-validated, further improving the leveling accuracy.

[0048] In some embodiments, the first mounting plate 11 and the second mounting plate 12 are triangular plates of the same shape. Three spirit levels 4 are provided, with the three spirit levels 4 respectively positioned in the area near the three corners of the top surface of the first mounting plate 11. Three support legs 21 are respectively positioned in the area near the three sides of the bottom of the second mounting plate 12. Because any rotational movement of the triangular plate will produce the greatest linear displacement in the area of ​​the three corners, placing the spirit levels 4 in the area of ​​the three corners can more effectively capture displacement changes, improve the sensitivity of the spirit level 4 measurement, and enable higher leveling accuracy after the steel pad 5 is leveled. Furthermore, by placing the three support legs 21 on the three sides of the triangular plate, the support legs 21 are moved away from the area where the three spirit levels 4 are located, reducing the impact of the vibration generated by the support legs 21 on the spirit levels after being transmitted to the first mounting plate 11. In addition, this arrangement also allows the spirit level 4 in one corner to correspond to the support leg 21 on the opposite side of that corner, making leveling easier and faster. For example, please refer to Figure 3In the diagram, the bottommost bubble level 4 corresponds to the topmost support leg 21. During the leveling of the steel pad 5, when adjusting the topmost support leg 21, the bottommost bubble level 4, being furthest from the topmost support leg 21, exhibits the most significant displacement change. This makes the bubble displacement within the bottommost bubble level 4 most noticeable and easier to observe. Therefore, the operator can primarily adjust the topmost support leg 21 based on the more sensitive bubble changes within the bottommost bubble level 4, thus achieving rapid and accurate leveling. This correspondence serves as a guide for the leveling operation, improving both efficiency and accuracy. Preferably, to ensure a more balanced measurement area for each of the three bubble levels 4 and to facilitate more balanced adjustment from the three sides of the triangle, the three sides of the triangle are of equal length.

[0049] In order to make the support of the three legs 21 of the leveling bracket 2 more even, in some embodiments, the legs 21 are located in the middle of the side. It is worth mentioning that since the three spirit levels 4 are located in the three corner areas, setting the legs 21 in the middle of the side can also maximize the distance between the legs 21 and the spirit levels 4, and reduce the interference of the legs 21 on the spirit levels 4 when adjusting.

[0050] In some embodiments, the fixing mechanism 3 includes a fixing bolt 31 and a fixing nut 32. The fixing bolt 31 is used to pass through the second mounting plate 12, the first mounting plate 11, and the steel pad 5 in a vertical direction, and then threadedly connects to the fixing nut 32. For an example, please refer to [reference needed]. Figure 1 as well as Figure 2 The fixing bolt 31 passes through the second mounting plate 12, the first mounting plate 11, and the steel pad 5 from bottom to top, and then connects to the fixing nut 32. This fixing method, through pre-tightening force, ensures that the steel pad 5 and the first mounting plate 11 are tightly fitted, eliminating the gap between them. This results in a high degree of parallelism between the surface of the steel pad 5 and the surface of the first mounting plate 11, which is beneficial for subsequent positioning and leveling. Moreover, this fixing method has strong stability and can still provide stable fixing for the steel pad 5 during subsequent welding. In addition, this fixing mechanism 3 can be disassembled, which is beneficial for the reuse of the device.

[0051] Considering that the preload of the fixing nut 32 acts directly on the steel pad 5, the contact area between the fixing nut 32 and the steel pad 5 is very small, which can easily cause scratches or crushing deformation to the top surface of the steel pad 5. In some embodiments, the fixing mechanism 3 further includes a fixing washer 33, which is disposed between the fixing nut 32 and the steel pad 5. The fixing washer 33 disperses the locking force of the fixing nut 32 to a larger area, avoiding damage to or deformation of the steel pad 5. In addition, the fixing washer 33 is a spring washer. After being compressed by the fixing nut 32, the spring washer's elasticity can continuously press against the steel pad 5, which can play a role in preventing loosening and vibration.

[0052] In some embodiments, the outrigger 21 includes a support rod 211 and a telescopic rod 212. One end of the support rod 211 is hinged to the bottom of the second mounting plate 12, allowing the outrigger 21 to rotate relative to the bottom of the second mounting plate 12. The telescopic rod 212 is slidably connected to the support rod 211. The end of the support rod 211 away from the second mounting plate 12 is provided with a limiting mechanism 214 for restricting the sliding of the telescopic rod 212, allowing the outrigger 21 to be length-adjusted and self-locking after adjustment. This dual-degree-of-freedom design allows the outrigger 21 to have a larger range of motion, which is beneficial for operators to position and level the steel pad 5 by adjusting each outrigger 21.

[0053] To ensure more stable sliding of the telescopic rod 212 relative to the support rod 211 and prevent wobbling during sliding, in some embodiments, the support rod 211 is provided with a guide mechanism 213 for guiding the sliding of the telescopic rod 212. For details, please refer to... Figure 1 as well as Figure 2 The support rod 211 includes two support rods 2111 arranged at relatively intervals. One end of the two support rods 2111 is connected by a hinge seat 2112, and the other end of the two support rods 2111 is connected by a connecting seat 2113, thereby forming a stable truss structure and improving the stability of the support leg 21 structure. The hinge seat 2112 is hinged to the bottom of the second mounting plate 12. The connecting seat 2113 is provided with a through hole 2114. The guide mechanism 213 includes a slider 2131, which is located between the hinge seat 2112 and the connecting seat 2113. Both ends of the slider 2131 are slidably connected to the two support rods 2111 respectively. One end of the telescopic rod 212 is connected to the slider 2131, and the other end of the telescopic rod 212 passes through the through hole 2114. The telescopic rod 212 is doubly limited and guided by the slider 2131 and the through hole 2114 on the connecting seat 2113, which not only improves the accuracy of the limit and guidance, but also improves the load-bearing capacity of the telescopic rod 212.

[0054] In some embodiments, the limiting mechanism 214 includes a limiting bolt 2141. The side of the connecting seat 2113 is provided with a limiting screw hole, which communicates with the through hole 2114. The limiting bolt 2141 is installed in the limiting screw hole. By adjusting the limiting nut, which extends from the limiting screw hole into the through hole 2114 to abut against the telescopic rod 212, the limiting effect on the telescopic rod 212 is achieved. The operation is simple.

[0055] The specific steps during construction of the prestressed anti-buoyancy anchor steel pad positioning and leveling device 100 provided in this application include:

[0056] Step S101: Position and lay out the lines according to the design drawings to determine the center line position of the prestressed anchor rod and the preset installation position of the leveling bracket 2 on the construction base surface;

[0057] Step S102: Mark the position of the center line of the prestressed anchor rod on the construction base surface with a cross;

[0058] Step S103: The leveling bracket 2 is placed on the construction base surface at the preset installation position of the leveling bracket 2, and the base 1 is installed on the top of the leveling bracket 2.

[0059] Step S104: Install the steel pad 5 into the mounting groove of the first mounting plate 11 and fix it by the fixing mechanism 3;

[0060] Step S105: Adjust the length of the three support legs 21 and the rotation angle of the three support legs 21 so that the bubble in the level bubble 4 is in the center position, while ensuring that the plumb bob is in the center position of the cross mark;

[0061] Step S106: Weld the periphery of the steel pad 5 to the reinforcing bars of the structural base plate;

[0062] Step S107: Release the fixing mechanism 3 from fixing the steel pad 5.

[0063] In this embodiment, after positioning and laying out according to the design drawings, the center line position of the prestressed anchor rod and the preset installation position of the leveling bracket 2 can be determined on the construction base. By marking the center line position of the prestressed anchor rod on the construction base, the positioning accuracy of the prestressed anchor rod center line can be improved. After the layout is completed, when installing the prestressed anti-buoyancy anchor rod steel pad positioning and leveling device 100, the leveling bracket 2 is first supported on the construction base at the preset installation position of the leveling bracket 2. This lays the foundation for subsequent precise leveling and minimizes the number of subsequent adjustments to the leveling bracket 2. After fixing the steel pad 5 to the installation groove through the fixing mechanism 3, the length of the three legs 21 and the rotation angle of the three legs 21 are adjusted so that the bubble in the leveling bubble 4 is located in the center position, while ensuring that the plumb bob is located in the center position. The central position of the cross mark allows for simultaneous positioning of the steel pad 5 during the leveling process, preventing deviation from the preset position after leveling. This significantly improves the accuracy of positioning and leveling the steel pad 5, meeting the requirements of high-precision prestressed construction. After positioning and leveling, the periphery of the steel pad 5 needs to be welded to the structural base plate. Since the depth of the mounting groove is less than the thickness of the steel pad 5, the upper part of the periphery is exposed, facilitating welding. The positioning cooperation between the fixing mechanism 3 and the mounting groove prevents displacement or tilting of the steel pad 5 during welding, ensuring good positional and horizontal accuracy after welding. This greatly reduces the impact on subsequent prestressed anti-buoyancy anchor tensioning. After welding, the fixing mechanism 3 can be released from the steel pad 5.

[0064] In some embodiments, the method further includes the following after step S107:

[0065] The position and level of the steel pad 5 are checked. Once the position and level are confirmed to be correct, the next construction step is carried out.

[0066] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A prestressed anti-buoyancy anchor bolt steel pad positioning and leveling device, characterized in that, include: Base, leveling bracket, fixing mechanism, plumb bob, and multiple spirit levels; The base includes a first mounting plate and a second mounting plate connected sequentially in the vertical direction; The top surface of the first mounting plate is provided with a mounting groove for accommodating a steel pad in the middle. The bottom surface of the mounting groove is parallel to the top surface of the first mounting plate; The depth of the mounting groove is less than the thickness of the steel pad. The plumb bob is located in the middle of the bottom surface of the second mounting plate; The plurality of spirit levels are located on the top surface of the first mounting plate in the area outside the mounting groove; The leveling bracket includes three legs hinged to the bottom of the second mounting plate; The length of the outriggers is adjustable; The fixing mechanism is used to fix the steel pad in the mounting groove.

2. The prestressed anti-buoyancy anchor steel pad positioning and leveling device as described in claim 1, characterized in that, Multiple spirit levels are spaced apart on the periphery of the top surface of the first mounting plate.

3. The prestressed anti-buoyancy anchor steel pad positioning and leveling device as described in claim 2, wherein the first mounting plate and the second mounting plate are triangular plates of the same shape, three spirit levels are provided, the three spirit levels are respectively arranged in the area near the three corners of the top surface of the first mounting plate, and the three support legs are respectively arranged in the area near the three sides of the bottom of the second mounting plate.

4. The prestressed anti-buoyancy anchor steel pad positioning and leveling device as described in claim 3, wherein the support leg is located in the middle of the side.

5. The prestressed anti-buoyancy anchor steel pad positioning and leveling device as described in claim 1, wherein the fixing mechanism includes a fixing bolt and a fixing nut, wherein the fixing bolt is used to pass through the second mounting plate, the first mounting plate and the steel pad in the vertical direction and then be threadedly connected to the fixing nut.

6. The prestressed anti-buoyancy anchor steel pad positioning and leveling device as described in claim 5, wherein the fixing mechanism further includes a fixing shim, the fixing shim being disposed between the fixing nut and the steel pad.

7. The prestressed anti-buoyancy anchor steel pad positioning and leveling device as described in claim 1, wherein the support leg includes a support rod and a telescopic rod, one end of the support rod is hinged to the bottom of the second mounting plate, the telescopic rod is slidably connected to the support rod, and the end of the support rod away from the second mounting plate is provided with a limiting mechanism for restricting the sliding of the telescopic rod.

8. The prestressed anti-buoyancy anchor steel pad positioning and leveling device as described in claim 7, wherein the support rod is provided with a guide mechanism for guiding the sliding of the telescopic rod.

9. The prestressed anti-buoyancy anchor steel pad positioning and leveling device as described in claim 8, wherein the support rod includes two support rods arranged at relative intervals, one end of the two support rods is connected by a hinge seat, the other end of the two support rods is connected by a connecting seat, the hinge seat is hinged to the bottom of the second mounting plate, the connecting seat is provided with a through hole, the guide mechanism includes a slider, the slider is located between the hinge seat and the connecting seat, both ends of the slider are slidably connected to the two support rods respectively, one end of the telescopic rod is connected to the slider, and the other end of the telescopic rod passes through the through hole.

10. The prestressed anti-buoyancy anchor steel pad positioning and leveling device as described in claim 9, wherein the limiting mechanism includes a limiting bolt, the side of the connecting seat is provided with a limiting screw hole, the limiting screw hole communicates with the through hole, and the limiting bolt is installed in the limiting screw hole.

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