A prestress maintaining and compensating structure of an anti-floating anchor rod

Abstract

The utility model discloses an anti -floating anchor rod body's prestress keeps and compensates structure, including cylinder and expansion body, the expansion body is evenly set up in the bottom of cylinder, and the inner chamber of cylinder is evenly provided with second nut, and the inner chamber screw thread connection of second nut has screw part, and the bottom of screw part is provided with second wedge, and the top of screw part is provided with the obturation piece, and the outside of expansion body is provided with the first wedge of second wedge's adaptation. The anti -floating anchor rod body's prestress keeps and compensates structure, ensure that anti -floating anchor rod can keep stable reliable working condition when bearing buoyancy effect, improve the prestress of anchor rod and carry out the compensation to the fastening of anchor rod, and the support mechanism of cylinder outside passes through the collaborative action of card arm, first nut, vertical arm and stabilizer piece, can flexibly adjust the position and angle of cylinder in the installation process, can realize installation without complex operation, promote the convenience of construction, guarantee the accuracy of installation position simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of anchor bolts, and in particular to a prestress retention and compensation structure for an anti-buoyancy anchor bolt body. Background Technology

[0002] Anti-buoyancy anchors are mainly used in building structures such as basements, underground garages, and integrated utility tunnels that are susceptible to buoyancy from groundwater. They are a key component of the anti-buoyancy anchor system responsible for maintaining the prestress of the anchor body and ensuring its anti-buoyancy performance. Their core function is to provide support for the stable operation of underground structures under long-term buoyancy by optimizing the fit between the anchor body and the wall of the installation hole and the coordinated operation of related components.

[0003] In existing technologies, the rod structure of anti-buoyancy anchors often fails to achieve a tight fit with the wall of the installation hole, lacking an effective expansion drive structure to enhance the anchoring force between them. This results in insufficient pull-out resistance of the anti-buoyancy anchors, making them prone to instability under buoyancy. Furthermore, existing structures typically lack secondary locking designs for key fastening components, which are prone to loosening due to vibration, load changes, and other factors during long-term use, leading to a decrease in anti-buoyancy performance. In addition, the support structure for auxiliary rod installation has poor adjustment flexibility, making it difficult to conveniently adjust the position and angle of the rod during installation. This often requires complex operating procedures, reducing construction convenience and potentially causing installation position deviations due to inconvenient adjustments, thus affecting the overall performance of the anti-buoyancy anchor. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a prestress retention and compensation structure for anti-buoyancy anchor rods to solve the aforementioned technical problems.

[0005] To achieve the above objectives, this application provides the following technical solution: a prestress retention and compensation structure for an anti-buoyancy anchor rod, comprising a column and an expansion body, wherein the expansion body is uniformly disposed at the bottom of the column, a second nut is uniformly disposed in the inner cavity of the column, a threaded component is threadedly connected to the inner cavity of the second nut, a second wedge is disposed at the bottom of the threaded component, a sealing block is disposed at the top of the threaded component, and a first wedge adapted to the second wedge is disposed on the outside of the expansion body; The column is provided with a support mechanism on its exterior. The support mechanism includes a clamping arm and a first nut. The clamping arm is inserted into the exterior of the column. The first nut is threaded to the exterior of the column. A vertical arm is rotatably connected to the bottom of the first nut. A stabilizing block is rotatably connected to the bottom of the vertical arm. The inner cavity of the first nut is evenly provided with clamping grooves.

[0006] When the sealing block is rotated, it drives the threaded component to rotate. Since the second nut is fixed inside the cylinder's cavity, the threaded component descends axially, thereby causing the second wedge to descend as well. The second wedge cooperates with the first wedge; the descent of the second wedge drives the first wedge to expand outward, which in turn causes the expansion body to expand within the hole, ensuring a tight fit between the cylinder and the hole wall, thus fixing the cylinder in place. Simultaneously, the descent of the sealing block pushes the locking arm into the locking groove, achieving a secondary locking of the first nut's position and preventing it from loosening, further ensuring the stability of the cylinder's fixation.

[0007] Improving the anchoring force between the column and the borehole wall enhances the pull-out resistance of the anti-buoyancy anchor, ensuring its stability and reliability under buoyancy. Simultaneously, the support mechanism allows for convenient adjustment of the column's position and angle during installation, improving construction convenience and accuracy.

[0008] Preferably, the inner cavity of the card slot is provided with a wear-resistant pad, and the card slot is adapted to the card arm.

[0009] The presence of wear-resistant pads reduces wear on the clamping arm during insertion into and movement within the clamping slot, ensuring the precision and reliability of the fit between the clamping arm and the slot. When the clamping arm is inserted into the slot, the wear-resistant pads provide cushioning, allowing for smoother insertion. Furthermore, when the clamping arm is subjected to external forces, the wear-resistant pads can distribute stress, preventing the clamping slot and clamping arm from failing due to wear.

[0010] The wear-resistant pads extend the service life of the slots and arms, improve the stability and reliability of the entire support mechanism, and thus ensure the long-term stable operation of the anti-buoyancy anchor rod prestress retention and compensation structure.

[0011] Preferably, both sides of the card arm are rounded, and the bottom of the sealing block is rounded.

[0012] The rounded corners on both sides of the clamping arm make it easier to insert into the slot, reducing resistance and friction during insertion, while also preventing the edges of the clamping arm from damaging the slot. The rounded corners at the bottom of the sealing block allow for smoother insertion of the clamping arm into the slot during the descent of the sealing block, and reduce collisions and wear between the sealing block and other components.

[0013] The rounded corner design improves the fit accuracy between components and the ease of operation, reduces wear and damage to components, and helps to improve the installation efficiency and service life of the entire structure.

[0014] Preferably, the second wedge and the first wedge are both provided with a pad at their opposite ends, and the second wedge and the first wedge are both designed with a bevel.

[0015] The pad increases the contact area between the second and first wedges, making the force transmission more uniform and preventing excessive local stress from damaging the components. The inclined surface design of the second and first wedges utilizes the wedge-shaped effect of the inclined surface. When the second wedge descends, it pushes the first wedge outward through the inclined surface, thereby achieving the expansion of the expansion body.

[0016] The design of the pad and the inclined surface ensures the effective transmission and uniform distribution of force, improves the expansion effect and stability of the expansion body, and thus enhances the anchoring performance of the anti-buoyancy anchor.

[0017] Preferably, locking bolts are provided on both sides of the top of the stabilizing block, and a rubber pad is provided at the bottom of the stabilizing block.

[0018] The locking bolts at the top of the stabilizer block secure it to the wall or other structure, preventing movement and ensuring the stability of the support mechanism. The rubber pads at the bottom of the stabilizer block increase friction between it and the support surface, while also providing cushioning to reduce damage to the support surface.

[0019] The use of locking bolts and rubber pads improves the stability and reliability of the stabilizer blocks, ensuring that the support mechanism can effectively support and fix the column, and enhancing the overall stability of the anti-buoyancy anchor rod prestress retention and compensation structure.

[0020] Preferably, the outside of the column is provided with a threaded sleeve, and the outside of the threaded sleeve is connected to the inside thread of the first nut.

[0021] The threaded sleeve allows the first nut to be threadedly connected to the column, facilitating adjustment of its position. Rotating the first nut moves the vertical arm and stabilizing block, thereby adjusting the column's position and angle to meet various construction requirements.

[0022] The threaded sleeve makes the connection between the first nut and the column more reliable and easier to adjust, improving the flexibility and accuracy of construction and helping to ensure the prestress retention of the anti-buoyancy anchor rod and the installation quality of the compensation structure.

[0023] In summary, this application provides a prestress retention and compensation structure for an anti-buoyancy anchor rod, which has the following beneficial effects: The prestress retention and compensation structure of this anti-buoyancy anchor rod, through the cooperation of the expansion body and the column, allows the threaded part to descend axially by rotating the sealing block. The interaction between the second wedge and the first wedge drives the expansion body to expand outward, making the column tightly fit with the hole wall, effectively improving the anchoring force between the column and the hole wall, thereby enhancing the pull-out resistance of the anti-buoyancy anchor rod. This ensures that the anti-buoyancy anchor rod can maintain a stable and reliable working state when subjected to buoyancy, improves the prestress of the anchor rod, and compensates for the tightness of the anchor rod.

[0024] During the descent of the sealing block, it pushes the locking arm to insert into the slot, achieving a secondary locking of the first nut position. This prevents the first nut from loosening during use, further consolidating the stability of the column fixation and reducing the possibility of reduced anti-buoyancy effect due to component loosening. In addition, the external support mechanism of the column, through the coordinated action of the locking arm, the first nut, the vertical arm, and the stabilizing block, can flexibly adjust the position and angle of the column during installation. Installation can be achieved without complicated operations, improving the convenience of construction and ensuring the accuracy of the installation position. Attached Figure Description

[0025] Figure 1 This is a front view of the present invention.

[0026] Figure 2 This is a front sectional view of the present invention.

[0027] Figure 3 This is a partial sectional view of the present invention.

[0028] Explanation of reference numerals in the attached figures: 1. Column; 2. Expansion body; 21. First wedge; 3. Threaded part; 31. Second wedge; 32. Sealing block; 4. Support mechanism; 41. First nut; 42. Vertical arm; 43. Slot; 44. Stabilizing block; 45. Clamping arm; 5. Second nut. Detailed Implementation

[0029] This application provides a technical solution; please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3 A prestress retention and compensation structure for an anti-buoyancy anchor rod includes a column 1 and an expansion body 2. The expansion body 2 is evenly arranged at the bottom of the column 1. A second nut 5 is evenly arranged in the inner cavity of the column 1. A threaded part 3 is threadedly connected to the inner cavity of the second nut 5. A second wedge 31 is arranged at the bottom of the threaded part 3. A sealing block 32 is arranged at the top of the threaded part 3. A first wedge 21 that is adapted to the second wedge 31 is arranged on the outside of the expansion body 2. A support mechanism 4 is provided on the outside of the column 1. The support mechanism 4 includes a clamping arm 45 and a first nut 41. The clamping arm 45 is inserted into the outside of the column 1. The first nut 41 is threaded to the outside of the column 1. A vertical arm 42 is rotatably connected to the bottom of the first nut 41. A stabilizing block 44 is rotatably connected to the bottom of the vertical arm 42. The inner cavity of the first nut 41 is evenly provided with clamping grooves 43.

[0030] When the sealing block 32 is rotated, it drives the threaded component 3 to rotate. Since the second nut 5 is fixed in the inner cavity of the column 1, the threaded component 3 will descend axially, thereby driving the second wedge block 31 to descend. The second wedge block 31 cooperates with the first wedge block 21. The descent of the second wedge block 31 will drive the first wedge block 21 to expand outward, thereby causing the expansion body 2 to expand in the hole, so that the column 1 fits tightly against the hole wall, thus fixing the column 1. At the same time, during the descent of the sealing block 32, it will push the locking arm 45 into the locking groove 43, thereby achieving a secondary locking of the position of the first nut 41, preventing the first nut 41 from loosening, and further ensuring the stability of the column 1.

[0031] The anchoring force between column 1 and the borehole wall is increased, enhancing the pull-out resistance of the anti-buoyancy anchor and ensuring its stability and reliability under buoyancy. Simultaneously, the support mechanism 4 allows for convenient adjustment of the position and angle of column 1 during installation, improving construction convenience and accuracy.

[0032] The inner cavity of the slot 43 is equipped with a wear-resistant pad, and the slot 43 is compatible with the card arm 45.

[0033] The presence of the wear-resistant pad reduces wear when the clamping arm 45 is inserted into and moves within the clamping slot 43, ensuring the fitting accuracy and reliability between the clamping arm 45 and the clamping slot 43. When the clamping arm 45 is inserted into the clamping slot 43, the wear-resistant pad provides a certain amount of cushioning, allowing the clamping arm 45 to be inserted into the clamping slot 43 more smoothly. Furthermore, when the clamping arm 45 is subjected to external force, the wear-resistant pad can disperse stress, preventing the clamping slot 43 and the clamping arm 45 from failing due to wear.

[0034] The wear-resistant pads extend the service life of the slots 43 and the arm 45, improve the stability and reliability of the entire support mechanism 4, and thus ensure the long-term stable operation of the anti-buoyancy anchor rod prestress retention and compensation structure.

[0035] Both sides of the clamp arm 45 are rounded, and the bottom of the sealing block 32 is also rounded.

[0036] The rounded corners on both sides of the clamping arm 45 make it easier to insert into the clamping slot 43, reducing resistance and friction during insertion, and preventing the edges of the clamping arm 45 from damaging the clamping slot 43. The rounded corners at the bottom of the sealing block 32 allow the clamping arm 45 to be pushed into the clamping slot 43 more smoothly during the descent of the sealing block 32, and reduce collisions and wear between the sealing block 32 and other components.

[0037] The rounded corner design improves the fit accuracy between components and the ease of operation, reduces wear and damage to components, and helps to improve the installation efficiency and service life of the entire structure.

[0038] The second wedge 31 and the first wedge 21 are both provided with a pad at the opposite end, and the second wedge 31 and the first wedge 21 are both designed with a bevel.

[0039] The pad increases the contact area between the second wedge 31 and the first wedge 21, making the force transmission more uniform and preventing excessive local stress from damaging the component. The inclined surface design of the second wedge 31 and the first wedge 21 utilizes the wedge-shaped effect of the inclined surface. When the second wedge 31 descends, it pushes the first wedge 21 outward through the inclined surface, thereby realizing the expansion of the expansion body 2.

[0040] The design of the pad and the inclined plane ensures the effective transmission and uniform distribution of force, improves the expansion effect and stability of the expansion body 2, and thus enhances the anchoring performance of the anti-buoyancy anchor.

[0041] Locking bolts are provided on both sides of the top of the stabilizing block 44, and rubber pads are provided on the bottom of the stabilizing block 44.

[0042] The locking bolts at the top of the stabilizing block 44 can fix the stabilizing block 44 to the wall or other structure, preventing the stabilizing block 44 from moving and thus ensuring the stability of the support mechanism 4. The rubber pad at the bottom of the stabilizing block 44 can increase the friction between the stabilizing block 44 and the support surface, and at the same time play a certain role in cushioning, reducing the damage of the stabilizing block 44 to the support surface.

[0043] The use of locking bolts and rubber pads improves the stability and reliability of the stabilizing block 44, ensuring that the support mechanism 4 can effectively support and fix the column 1, and enhances the overall stability of the anti-buoyancy anchor rod prestress retention and compensation structure.

[0044] The outside of the column 1 is provided with a threaded sleeve, and the outside of the threaded sleeve is connected to the inside thread of the first nut 41.

[0045] The presence of the threaded sleeve allows the first nut 41 to be threadedly connected to the column 1, facilitating the adjustment of the position of the first nut 41 on the column 1. By rotating the first nut 41, the vertical arm 42 and the stabilizing block 44 can be moved, thereby adjusting the position and angle of the column 1 to meet different construction needs.

[0046] The threaded sleeve makes the connection between the first nut 41 and the column 1 more reliable and easier to adjust, improving the flexibility and accuracy of construction and helping to ensure the prestress retention and compensation structure of the anti-buoyancy anchor rod.

[0047] This solution first involves drilling holes in the exterior of the wall, inserting the column 1 into the holes, adjusting the position of the first nut 41, and fixing the position of the column 1 through the cooperation of the vertical arm 42, the stabilizing block 44, and the locking bolt. Then, rotating the sealing block 32 causes the second wedge block 31 to descend, which in turn drives the first wedge block 21 to expand the expansion body 2 in the hole, thus fixing the column 1. At the same time, the sealing block 32 drives the clamping arm 45 to insert into the inside of the clamping groove 43, thereby locking the position of the first nut 41 a second time.

Claims

1. A prestress retention and compensation structure for an anti-buoyancy anchor rod, comprising a column (1) and an expansion body (2), wherein the expansion body (2) is uniformly disposed at the bottom of the column (1), characterized in that: The inner cavity of the column (1) is uniformly provided with a second nut (5), and the inner cavity of the second nut (5) is threadedly connected with a threaded part (3). The bottom of the threaded part (3) is provided with a second wedge (31), and the top of the threaded part (3) is provided with a sealing block (32). The outer side of the expansion body (2) is provided with a first wedge (21) that is adapted to the second wedge (31). The outer side of the column (1) is provided with a support mechanism (4). The support mechanism (4) includes a clamping arm (45) and a first nut (41). The clamping arm (45) is inserted into the outer side of the column (1). The first nut (41) is threadedly connected to the outer side of the column (1). The bottom of the first nut (41) is rotatably connected with a vertical arm (42). The bottom of the vertical arm (42) is rotatably connected with a stabilizing block (44). The inner cavity of the first nut (41) is uniformly provided with a clamping groove (43).

2. The prestress retention and compensation structure for an anti-buoyancy anchor rod according to claim 1, characterized in that: The inner cavity of the slot (43) is provided with a wear-resistant pad, and the slot (43) is adapted to the card arm (45).

3. The prestress retention and compensation structure for an anti-buoyancy anchor rod according to claim 1, characterized in that: Both sides of the card arm (45) are rounded, and the bottom of the sealing block (32) is rounded.

4. The prestress retention and compensation structure for an anti-buoyancy anchor rod according to claim 1, characterized in that: The second wedge (31) and the first wedge (21) are both provided with a pad at the opposite end, and the second wedge (31) and the first wedge (21) are both designed with a bevel.

5. The prestress retention and compensation structure for an anti-buoyancy anchor rod according to claim 1, characterized in that: Locking bolts are provided on both sides of the top of the stabilizing block (44), and a rubber pad is provided at the bottom of the stabilizing block (44).

6. The prestress retention and compensation structure for an anti-buoyancy anchor rod according to claim 1, characterized in that: The outside of the column (1) is provided with a threaded sleeve, and the outside of the threaded sleeve is connected to the inside thread of the first nut (41).

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