Anti-floating anchor rod

Abstract

The utility model relates to the technical field of building construction, especially relates to a kind of anti-floating anchor rod, including several anti-floating anchor rods, at least one set of limiting assembly is arranged between several anti-floating anchor rods, the limiting assembly includes two identical limiting rings, at least one limiting slot is provided on the inner side wall of the limiting ring, the limiting ring is provided with an opening extending along its circumference, the opening can be used for the anti-floating anchor rod to enter, wherein, two the limiting ring body is stacked along the circumference and is oppositely arranged in the opening direction of two, when stacked, the limiting slot in two the limiting ring is opposite each other, and it is limited to install the hole for limiting the anti-floating anchor rod, for preventing anchor rod from happening to sway or offset.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to an anti-buoyancy anchor rod. Background Technology

[0002] Anti-buoyancy anchors are one of the key technical measures in building engineering to resist the uplift of underground structures due to the buoyancy of groundwater. Their working principle is to anchor the structure to the stable strata or foundation below by anchoring the anchor to balance the uplift force generated by groundwater. The direction of force is opposite to that of compression piles that bear vertical pressure, and their design and effectiveness are highly dependent on the groundwater level and its dynamic changes.

[0003] Although anti-buoyancy anchors are widely used in engineering practice, common structural forms in existing technologies still have significant technical defects that affect their anti-buoyancy performance and urgently need improvement. These defects are mainly manifested in the following two aspects: 1. Insufficient anchorage interface performance: Existing anti-buoyancy anchors generally suffer from a relatively simple rod structure design and a high degree of surface smoothness. This directly leads to insufficient interfacial friction (bonding force) between the anchor rod and the surrounding concrete (or cement grout), significantly weakening the synergistic working performance between the grout and the concrete matrix, thereby reducing the overall pull-out bearing capacity of the anchor and affecting the final anti-buoyancy effect and structural safety reserve.

[0004] 2. Poor Installation Positioning Accuracy and Risk of Waterproofing Damage: During construction and installation, holes are typically drilled in the waterproofing layer of the structural base slab corresponding to the anchor bolt positions. This allows the anchoring section of the anchor bolt (such as the anchor bar) to pass through the waterproofing layer and ultimately anchor into the foundation raft. However, existing installation techniques struggle to effectively guarantee the precise positioning and stability of the anchor bolts at the drilled holes. During grouting or subsequent operations, the anchor bolts are highly susceptible to shaking or shifting. When multiple adjacent anchor bolts are installed simultaneously, this instability can interact and amplify, leading to a final anchor bolt group with positional deviations exceeding the allowable range. This not only reduces the overall effectiveness of the anchor bolt system but, more importantly, the repeated shaking or shifting of the anchor bolts at the drilled holes can easily damage the integrity of the waterproofing layer, creating potential leakage channels and seriously threatening the waterproofing reliability of underground structures. Utility Model Content

[0005] Therefore, in view of the above problems, this utility model proposes an anti-buoyancy anchor to prevent the anchor from shaking or shifting.

[0006] This utility model is achieved through the following technical solution.

[0007] An anti-buoyancy anchor bolt includes a plurality of anti-buoyancy anchor bolts, and at least one set of limiting components is provided between the plurality of anti-buoyancy anchor bolts. The limiting components include two limiting rings with identical structures. At least one limiting groove is provided on the inner sidewall of the limiting ring. The limiting ring is provided with an opening extending circumferentially therein, and the opening allows the anti-buoyancy anchor bolt to pass through. The two limiting ring bodies are stacked and fitted together circumferentially, and their opening directions are opposite. When stacked and fitted, the limiting grooves in the two limiting rings are opposite to each other, jointly defining an installation hole for limiting the anti-buoyancy anchor bolt.

[0008] As a further improvement of this utility model, an installation platform is provided on the side of the inner wall of the limiting ring away from the opening, and the outer wall of the installation platform smoothly transitions with the inner wall of the limiting ring to form a limiting groove that is adapted to the anti-buoyancy anchor rod.

[0009] As a further improvement of this utility model, a sleeve hole is provided on the limiting platform, and the sleeve hole is configured such that its inner diameter is adapted to the outer diameter of the anti-buoyancy anchor rod.

[0010] As a further improvement of this utility model, a positioning groove is provided on the upper side of the mounting platform and a positioning boss is provided on the lower side of the mounting platform. When the two limiting rings are stacked and engaged, the positioning boss of the upper limiting ring passes through the positioning groove of the lower limiting ring.

[0011] As a further improvement of this utility model, the limiting ring is provided with first mounting holes symmetrically on the end faces on both sides of the opening. The first mounting holes extend radially along the limiting ring. The other limiting ring is provided with a second mounting hole coaxial with the first mounting hole at the corresponding position when stacked. A positioning pin is provided between the first mounting hole and the second mounting hole. As a further improvement of this utility model, at least two anti-buoyancy rods are evenly distributed along the circumference of the side wall of the limiting ring, and the anti-buoyancy rods are vertically and fixedly connected to the side wall of the limiting ring.

[0012] As a further improvement of this utility model, the bottom of the anti-buoyancy insert is a conical tip structure, and the angle between the generatrix of the conical tip and the axis is 30°-45°.

[0013] As a further improvement of this utility model, elastic elements are provided between the limiting groove and the anti-buoyancy anchor rod, and between the sleeve hole and the anti-buoyancy anchor rod.

[0014] As a further improvement of this utility model, the limiting groove is a semi-circular arc-shaped groove.

[0015] The beneficial effects of this utility model are as follows: During installation, the anti-buoyancy anchor rod is controlled to pass through the opening, and then the two limiting rings are stacked and cooperate with each other. At this time, the two limiting rings with opposite opening directions are stacked to form a closed installation hole, thereby constraining the displacement of the anchor rod and ensuring that the anti-buoyancy anchor rod, the grouting body and the surrounding substrate are subjected to force in a coordinated manner, thereby improving the overall pull-out bearing capacity and enhancing the anti-buoyancy safety reserve. At the same time, during grouting or subsequent operations, the swaying or displacement between the anti-buoyancy anchor rods is avoided, thereby avoiding repeated swaying or displacement of the anti-buoyancy anchor rod at the opening, thus preventing the damage to the integrity of the waterproof layer and the formation of potential leakage channels. Attached Figure Description

[0016] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein: Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the stacked fitting structure of the limiting rings in an embodiment of this utility model; Figure 3 This is a schematic diagram of the limiting ring structure in an embodiment of this utility model.

[0017] The following are labeled in the diagram: anti-buoyancy anchor 1, limiting ring 2, limiting groove 201, opening 202, mounting platform 203, sleeve hole 204, positioning groove 205, positioning boss 206, first mounting hole 207, second mounting hole 208, anti-buoyancy insert 209, elastic element 210. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0020] refer to Figures 1 to 3 The present utility model embodiment discloses that: An anti-buoyancy anchor bolt includes a plurality of anti-buoyancy anchor bolts 1. At least one set of limiting components is provided between the plurality of anti-buoyancy anchor bolts 1. The limiting components include two limiting rings 2 with identical structures. At least one limiting groove 201 is provided on the inner sidewall of the limiting ring 2. The limiting groove 201 is a semi-circular arc-shaped groove. In this embodiment, there are two grooves, which are arranged adjacent to each other. The limiting ring 2 is provided with an opening 202 extending circumferentially. The opening 202 allows the anti-buoyancy anchor bolt 1 to pass through. The two limiting rings 2 are stacked and fitted together circumferentially, and the openings 202 of the two rings are arranged in opposite directions. When stacked, the limiting grooves 201 in the two limiting rings 2 are opposite to each other (similarly, the openings 202 of the limiting rings 2 are in opposite directions at this time). The installation hole for limiting the anti-buoyancy anchor 1 is defined by the two limiting rings 202. During installation, the anti-buoyancy anchor 1 is inserted through the opening 202, and the two limiting rings 2 are stacked and fitted together. At this time, the two limiting rings 2 with opposite directions of the opening 202 are stacked to form a closed installation hole, thereby constraining the displacement of the anti-buoyancy anchor 1 and ensuring that the anti-buoyancy anchor 1, the limiting rings 2, the grouting body and the surrounding matrix are subjected to force in a coordinated manner, thereby improving the overall pull-out bearing capacity and enhancing the anti-buoyancy safety reserve. At the same time, during grouting or subsequent operations, the shaking or displacement between the anti-buoyancy anchors 1 is avoided, thereby avoiding repeated shaking or displacement of the anti-buoyancy anchor 1 at the opening, thus preventing the damage to the integrity of the waterproof layer and the formation of potential leakage channels.

[0021] An installation platform 203 is provided on the inner wall of the limiting ring 2 away from the opening 202. The outer wall of the installation platform 203 smoothly transitions with the inner wall of the limiting ring 2 to form a limiting groove 201 that fits the anti-buoyancy anchor rod 1. The smooth transition structure avoids stress concentration and causes local pressure damage to the anti-buoyancy anchor rod 1.

[0022] The limiting platform is provided with a sleeve hole 204, the inner diameter of which is adapted to the outer diameter of the anti-buoyancy anchor rod 1. Specifically, in the specific installation process of this embodiment, a total of 4 anti-buoyancy anchor rods 1 are used as a group. Two anti-buoyancy anchor rods 1 are distributed and inserted into the sleeve holes 204 of the two limiting rings 2. Then, the openings 202 of the two limiting rings 2 are controlled to face each other and are controlled to move closer to each other and finally overlap, so that the two limiting rings 2 with opposite opening directions are overlapped to form a closed installation hole. Finally, the remaining two anti-buoyancy anchor rods 1 are controlled to be inserted into the installation hole, thus realizing the installation. The structure is simple and the installation is convenient.

[0023] The mounting platform 203 has a positioning groove 205 on its upper side and a positioning boss 206 on its lower side. The positioning boss 206 extends downward. When the two limiting rings 2 are stacked, the positioning boss 206 of the upper limiting ring 2 passes through the positioning groove 205 of the lower limiting ring 2. During installation, the positioning boss 206 is controlled to pass through the positioning groove 205 of the lower limiting ring 2, thus realizing the stacking of the two limiting rings 2. The structure is simple and the construction efficiency is high. At the same time, it can prevent the two limiting rings 2 from separating from each other. In addition, during the grouting process, the positioning boss 206 and the positioning groove 205 are interlocked to form a circumferential interlocking structure, which can also resist the misalignment between the two limiting rings 2 caused by the impact of grouting, thereby improving stability.

[0024] The limiting ring 2 has symmetrical first mounting holes 207 on both sides of the opening 202. The first mounting holes 207 extend radially along the limiting ring 2. The other limiting ring 2 has a second mounting hole 208 coaxial with the first mounting hole 207 at the corresponding position when stacked. A positioning pin is provided between the first mounting hole 207 and the second mounting hole 208. The two limiting rings 2 are assembled by the positioning pin passing through the first mounting hole 207 and the second mounting hole 208. The structure is simple and the installation is convenient. At the same time, the pin passing through both sides of the opening 202 of the limiting ring 2 fixes the opening 202 of the limiting ring 2, preventing deformation of the opening 202 of the limiting ring 2 and thus avoiding disturbance during grouting.

[0025] At least two anti-buoyancy rods 209 are evenly distributed circumferentially on the side wall of the limiting ring 2. The anti-buoyancy rods 209 are vertically and fixedly connected to the side wall of the limiting ring 2. The bottom of the anti-buoyancy rod 209 has a conical tip structure, and the angle between the generatrix of the conical tip and the axis is 30°-45°. The anti-buoyancy rods 209 are inserted into the formation opening along with the anti-buoyancy anchor rod 1 and the limiting ring 2 to further prevent the limiting ring 2 and the anti-buoyancy anchor rod 1 from floating during grouting.

[0026] An elastic element 210 is provided between the limiting groove 201 and the anti-buoyancy anchor rod 1, and between the sleeve hole 204 and the anti-buoyancy anchor rod 1. The elastic element 210 is a rubber elastic pad, which can fill the manufacturing tolerance and installation gap, while allowing a certain degree of elastic deformation, and to a certain extent avoiding stress fatigue of the anti-buoyancy anchor rod 1.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An anti-buoyancy anchor bolt, characterized in that: The device includes several anti-buoyancy anchor rods (1), and at least one set of limiting components is provided between the several anti-buoyancy anchor rods (1). The limiting components include two limiting rings (2) with the same structure. At least one limiting groove (201) is provided on the inner side wall of the limiting ring (2). The limiting ring (2) is provided with an opening (202) extending along its circumference. The opening (202) allows the anti-buoyancy anchor rod (1) to pass through. The two limiting rings (2) are stacked and fitted together in the circumference, and their openings (202) are set in opposite directions. When stacked and fitted, the limiting grooves (201) in the two limiting rings (2) are opposite to each other and together define an installation hole for limiting the anti-buoyancy anchor rod (1).

2. The anti-buoyancy anchor bolt according to claim 1, characterized in that: An installation platform (203) is provided on the side of the inner wall of the limiting ring (2) away from the opening (202). The outer wall of the installation platform (203) smoothly transitions with the inner wall of the limiting ring (2) to form a limiting groove (201) that is adapted to the anti-buoyancy anchor rod (1).

3. The anti-buoyancy anchor bolt according to claim 2, characterized in that: The mounting platform (203) is provided with a sleeve hole (204), and the sleeve hole (204) is configured such that its inner diameter is adapted to the outer diameter of the anti-buoyancy anchor rod (1).

4. The anti-buoyancy anchor bolt according to claim 2, characterized in that: The mounting platform (203) has a positioning groove (205) on its upper side and a positioning boss (206) on its lower side. When the two limiting rings (2) are stacked and engaged, the positioning boss (206) of the upper limiting ring (2) passes through the positioning groove (205) of the lower limiting ring (2).

5. The anti-buoyancy anchor bolt according to claim 1, characterized in that: The limiting ring (2) is provided with symmetrical first mounting holes (207) on the end faces on both sides of the opening (202). The first mounting holes (207) extend radially along the limiting ring (2). The other limiting ring (2) is provided with a second mounting hole (208) coaxial with the first mounting hole (207) at the corresponding position when stacked. A positioning pin is provided between the first mounting hole (207) and the second mounting hole (208).

6. The anti-buoyancy anchor bolt according to claim 1, characterized in that: At least two anti-buoyancy rods (209) are evenly distributed along the circumference of the side wall of the limiting ring (2), and the anti-buoyancy rods (209) are vertically fixedly connected to the side wall of the limiting ring (2).

7. The anti-buoyancy anchor bolt according to claim 6, characterized in that: The bottom of the anti-buoyancy insert (209) is a conical tip structure, and the angle between the generatrix of the conical tip and the axis is 30°-45°.

8. The anti-buoyancy anchor bolt according to claim 3, characterized in that: An elastic element (210) is provided between the limiting groove (201) and the anti-buoyancy anchor (1), and between the sleeve hole (204) and the anti-buoyancy anchor (1).

9. The anti-buoyancy anchor bolt according to claim 1, characterized in that: The limiting groove (201) is a semi-circular arc-shaped groove.

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