Anti-floating anchor rod end waterproof structure

Abstract

The utility model discloses an anti -floating anchor rod end waterproof structure belongs to the building engineering technical field, this structure includes anchor rod, waterproof assembly and drainage component that cover anchor rod end, waterproof assembly includes the fixed ring of setting in anchor rod, buckle in fixed ring's waterproof cover, the sealing washer and O type sealing ring of clamping between both, and the bolt of passing both and the butterfly spring of setting in the bolt, butterfly spring and press waterproof cover, provide the sustained compression force, make sealing washer and O type sealing ring be fully extruded and form multilayer seal, and drainage component includes the drainage hole of setting in waterproof cover, installs the check valve in the drainage hole, and the water guide groove of waterproof cover inside extension to the drainage hole. The utility model discloses through butterfly spring has guaranteed the long -term reliability of sealing, and has solved the problem of the water in the cover through check valve drainage component, has realized waterproof and the double protection of drainage, and the reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a waterproof structure for the end of an anti-buoyancy anchor rod. Background Technology

[0002] Anti-buoyancy anchors, as important geotechnical engineering components, are widely used in basement floors, hydraulic dams, tunnels, and other projects to resist the buoyancy forces acting on the structure. The durability and corrosion resistance of the ends of these anchors, especially those exposed or close to the ground surface and subjected to prolonged damp or groundwater environments, are crucial to the safety of the overall project.

[0003] To protect the ends of anchor bolts from moisture erosion, existing technologies typically employ waterproof covers or sealing caps. These devices attempt to create a physically sealed space at the ends of the anchor bolts by filling the space between the anchor bolt and the waterproof cover with sealant or installing sealing rings, thereby preventing the intrusion of external groundwater or surface water.

[0004] However, in practical applications, this method of waterproofing, which relies solely on "blocking" or "sealing," has significant drawbacks. On the one hand, sealing materials will age and harden over time, or may have initial defects due to improper operation during installation, leading to a decline in sealing performance and allowing external moisture to slowly seep in.

[0005] More importantly, even if the external seal is completely reliable, the air inside the waterproof cover can easily condense due to changes in day and night temperature or ambient humidity. Whether it is water that seeps in from the outside or water that condenses inside, once it enters the waterproof cover, it will be "trapped" in the sealed space due to the lack of drainage channels.

[0006] Therefore, this utility model proposes a waterproof structure at the end of an anti-buoyancy anchor rod to overcome the shortcomings of the prior art. Utility Model Content

[0007] The purpose of this application is to provide a waterproof structure for the end of an anti-buoyancy anchor bolt, which aims to improve the problems of the existing anchor bolt end sealing structure being simple and prone to failure, and the inability to drain internal water, leading to anchor bolt corrosion.

[0008] The waterproof structure at the end of the anti-buoyancy anchor provided in this application adopts the following technical solution: A waterproof structure for the end of an anti-buoyancy anchor bolt includes: an anchor bolt; a waterproof component; and a drainage component. The waterproof component covers the end of the anchor bolt and includes: a retaining ring fitted onto the end of the anchor bolt; a waterproof cover fastened to the outside of the retaining ring; a sealing gasket and an O-ring, sandwiched between the retaining ring and the waterproof cover; a bolt passing through the waterproof cover and the retaining ring to secure them together; and a butterfly spring fitted onto the bolt. The waterproof component, through the cooperation of the bolt and the butterfly spring, forms a unique fastening structure: the butterfly spring presses against the waterproof cover, and through the continuous elastic force generated after its compression, it tightly presses the waterproof cover and the retaining ring together, thereby fully compressing the sealing gasket and the O-ring sandwiched between them, forming a reliable multi-layer seal between the end of the anchor bolt and the waterproof cover. The waterproof structure for the end of the anti-buoyancy anchor bolt also achieves synergistic protection of waterproofing and drainage by setting up the drainage component. The drainage component includes a drainage hole opened on the waterproof cover and a one-way valve installed in the drainage hole. The one-way valve ensures that water accumulated inside the waterproof cover can be drained, while external water cannot enter in the reverse direction.

[0009] Preferably, a rubber pad is fixedly connected to the inner side of the fixing ring, and the rubber pad is in close contact with the surface of the anchor rod to protect the surface of the anchor rod.

[0010] Preferably, a sealing groove is provided on the end face of the fixing ring, and the sealing gasket and the O-ring are both disposed in the sealing groove.

[0011] Preferably, there are two sealing grooves, and the O-ring and the sealing gasket are arranged sequentially from the outside to the inside in the sealing grooves to enhance the quantity and reliability of the sealing layers.

[0012] Preferably, the inner surface of the waterproof cover is provided with multiple water guiding grooves, which extend along the arc surface of the waterproof cover and extend to the drain hole, so as to quickly collect the water accumulated inside the waterproof cover into the drain hole.

[0013] Preferably, the one-way valve includes a diaphragm and a stop, the stop limiting the range of motion of the diaphragm to achieve the function of one-way drainage.

[0014] Preferably, a filter screen is installed on the outside of the drain hole. The filter screen is used to intercept external impurities and ensure the smooth flow of the drain hole and its drainage performance.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. This utility model solves the problem in the prior art where anchor rod end protection relies solely on a single seal, or where the seal fails or condensation inside the cover cannot be drained, leading to easy corrosion of the anchor rod, by setting up a waterproof component and a drainage component and making the two work together. It achieves a dual protection effect combining a strong external seal and an active internal drainage, thus improving waterproof reliability.

[0016] 2. This utility model solves the problem in traditional rigid fastening connections where sealing gaskets, O-rings, and other sealing components experience reduced sealing pressure and gaps due to aging, thermal expansion and contraction, or vibration. It achieves the effect of automatically compensating for sealing gaps and ensuring the long-term effectiveness and reliability of the multi-layer sealing structure. Attached Figure Description

[0017] Figure 1 This is a perspective view of a waterproof structure at the end of an anti-buoyancy anchor rod proposed in this utility model; Figure 2 This is a schematic diagram showing the disassembled waterproof components of an anti-buoyancy anchor end waterproof structure proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the interior of the waterproof cover of the anti-buoyancy anchor end waterproof structure proposed in this utility model; Figure 5 This is a schematic diagram of a drainage component for a waterproof structure at the end of an anti-buoyancy anchor rod proposed in this utility model; Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0018] Explanation of reference numerals in the attached drawings: 1. Anchor bolt; 2. Waterproof component; 201. Waterproof cover; 202. Fixing ring; 203. Rubber gasket; 204. Sealing groove; 205. Sealing gasket; 206. O-ring seal; 207. Bolt; 208. Butterfly spring; 3. Drainage component; 301. Drain hole; 302. Water guide channel; 303. One-way valve; 304. Diaphragm; 305. Stop block; 306. Filter screen. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below.

[0020] A waterproof structure for the end of an anti-buoyancy anchor bolt, referring to Figures 1-6The system includes an anchor rod 1, a waterproof component 2 installed at the end of the anchor rod 1, and a drainage component 3 installed on the waterproof component 2. The waterproof component 2 covers the end of the anchor rod 1. The waterproof component 2 includes a fixing ring 202, a waterproof cover 201, a sealing gasket 205, an O-ring 206, a bolt 207, and a butterfly spring 208. The fixing ring 202 is sleeved on the end of the anchor rod 1. A rubber gasket 203 is fixedly connected to the inner side of the fixing ring 202. The rubber gasket 203 is tightly fitted to the surface of the anchor rod 1. The waterproof cover 201 is fastened to the fixing ring 208. On the outer side of the ring 202, a sealing groove 204 is provided on the end face of the fixing ring 202. There are two sealing grooves 204. O-rings 206 and sealing gaskets 205 are arranged in the sealing grooves 204 from the outside to the inside. The sealing gaskets 205 and O-rings 206 are sandwiched between the fixing ring 202 and the waterproof cover 201. Bolts 207 pass through the waterproof cover 201 and the fixing ring 202 to fasten the waterproof cover 201 and the fixing ring 202. A butterfly spring 208 is sleeved on the bolt 207 and presses against the waterproof cover 201. The drainage assembly 3 includes a drainage hole 301 opened on the waterproof cover 201 and a one-way valve 303 installed in the drainage hole 301. Multiple water guide grooves 302 are provided on the inner surface of the waterproof cover 201. The water guide grooves 302 extend along the arc surface of the waterproof cover 201, and their ends extend to the drainage hole 301. This structure allows water accumulated inside the waterproof cover 201 to quickly converge into the drainage hole 301 along the water guide grooves 302. The one-way valve 303 includes a diaphragm 304 and a stop 305. The stop 305 limits the range of motion of the diaphragm 304, ensuring that water inside the waterproof cover 201 is only allowed to drain outwards, while external water cannot enter in reverse. A filter screen 306 is installed on the outer side of the drainage hole 301. The filter screen 306 is used to intercept external impurities, further ensuring the unobstructed flow and waterproof performance of the drainage hole 301. To protect the surface of the anchor bolt 1, a rubber gasket 203 is fixedly connected to the inner side of the fixing ring 202. The rubber gasket 203 fits tightly against the surface of the anchor bolt 1. To reliably house the sealing elements, a sealing groove 204 is provided on the end face of the fixing ring 202. The sealing gasket 205 and the O-ring 206 are both placed in the sealing groove 204. To form a multiple seal, there are two sealing grooves 204. The O-ring 206 and the sealing gasket 205 are arranged sequentially from the outside to the inside of the two sealing grooves. In 204, in order to effectively collect internal water, the inner surface of the waterproof cover 201 is provided with multiple water guide grooves 302. The water guide grooves 302 extend to the drain hole 301. In order to improve the water guiding efficiency, the water guide grooves 302 extend along the arc surface of the waterproof cover 201. In order to achieve one-way drainage, the one-way valve 303 includes a diaphragm 304 and a baffle 305. The baffle 305 limits the movement range of the diaphragm 304. In order to prevent impurities from clogging, a filter screen 306 is installed on the outside of the drain hole 301.

[0021] Working principle: During installation, the fixing ring 202 is fitted onto the end of the anchor rod 1. The rubber gasket 203 on the inner side of the fixing ring 202 is tightly fitted to the surface of the anchor rod 1. The sealing gasket 205 and the O-ring 206 are placed in the sealing groove 204 of the fixing ring 202. Then, the waterproof cover 201 is fastened onto the outer side of the fixing ring 202. The bolt 207 passes through the waterproof cover 201 and the fixing ring 202. The butterfly spring 208 is fitted onto the bolt 207 and presses against the waterproof cover 201. When the bolt 207 is tightened, the butterfly spring 208 is compressed. The elastic force of the butterfly spring 208 secures the waterproof cover 201 and the fixing ring 202 together. At the same time, the elastic force fully compresses the sealing gasket 205 and the O-ring 206, thereby forming a multi-layer seal between the end of the anchor rod 1 and the waterproof cover 201 to prevent the intrusion of external water. When water accumulates inside the waterproof cover 201, the water flows along the multiple water guide grooves 302 on the inner surface of the waterproof cover 201 and converges at the drain hole 301. The pressure of the water pushes open the diaphragm 304 of the one-way valve 303 installed in the drain hole 301, and the water is discharged outward. The baffle 305 limits the range of motion of the diaphragm 304. After the internal water is drained, the diaphragm 304 resets under external pressure or its own weight, preventing external water from entering in reverse. The filter screen 306 on the outside of the drain hole 301 intercepts external impurities, ensuring the unobstructed flow of the drain hole 301.

Claims

1. A waterproof structure for the end of an anti-buoyancy anchor bolt, comprising: An anchor bolt (1) and a waterproofing component (2), the waterproofing component (2) covering the end of the anchor bolt (1); Its features are: The waterproof component (2) includes: a fixing ring (202), a waterproof cover (201), a butterfly spring (208), a bolt (207), a sealing gasket (205), and an O-ring (206). The fixing ring (202) is sleeved on the end of the anchor rod (1). The waterproof cover (201) is fastened to the outside of the fixing ring (202). The sealing gasket (205) and the O-ring (206) are sandwiched between the fixing ring (202) and the waterproof cover (201). The bolt (207) passes through the waterproof cover (201) and the fixing ring (202) to fasten them together. The butterfly spring (208) is sleeved on the bolt (207) and presses against the waterproof cover (201). The drainage assembly (3) includes a drain hole (301) and a one-way valve (303). The drain hole (301) is opened on the waterproof cover (201), and the one-way valve (303) is installed inside the drain hole (301).

2. The waterproof structure at the end of an anti-buoyancy anchor bolt according to claim 1, characterized in that: A rubber pad (203) is fixedly connected to the inner side of the fixing ring (202), and the rubber pad (203) is in close contact with the surface of the anchor rod (1).

3. The waterproof structure at the end of an anti-buoyancy anchor bolt according to claim 1, characterized in that: A sealing groove (204) is provided on the end face of the fixing ring (202), and the sealing gasket (205) and the O-ring (206) are both disposed in the sealing groove (204).

4. The waterproof structure at the end of an anti-buoyancy anchor bolt according to claim 3, characterized in that: There are two sealing grooves (204), and the O-ring (206) and the sealing gasket (205) are arranged in the sealing grooves (204) from the outside to the inside.

5. The waterproof structure at the end of an anti-buoyancy anchor bolt according to claim 1, characterized in that: The inner surface of the waterproof cover (201) is provided with multiple water guide grooves (302), which extend to the drain hole (301).

6. The waterproof structure at the end of an anti-buoyancy anchor bolt according to claim 5, characterized in that: The water guide channel (302) extends along the arc surface of the waterproof cover (201).

7. The waterproof structure at the end of an anti-buoyancy anchor bolt according to claim 1, characterized in that: The one-way valve (303) includes a diaphragm (304) and a stop (305), the stop (305) defining the range of motion of the diaphragm (304).

8. The waterproof structure at the end of an anti-buoyancy anchor bolt according to claim 1, characterized in that: A filter screen (306) is installed on the outside of the drain hole (301).

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