Building structure leak barrier

Abstract

The application relates to the technical field of building waterproofing, and provides a building structure anti-seepage device, which comprises a first tensioning screw rod, a second tensioning screw rod and a water stop piece, the first tensioning screw rod is provided with a first grouting channel extending in the axial direction; one end of the second tensioning screw rod is connected with one end of the first tensioning screw rod, and the second tensioning screw rod is provided with a grouting flow channel extending in the axial direction, the grouting flow channel is communicated with the first grouting channel; and the water stop piece is sleeved at the connection position of the first tensioning screw rod and the second tensioning screw rod, wherein the water stop piece is used for being pre-buried in a building structure, one end of the first tensioning screw rod, which is away from the second tensioning screw rod, extends to a first side of the building structure, and one end of the second tensioning screw rod, which is away from the first tensioning screw rod, extends to a second side of the building structure. The building structure anti-seepage device can deliver slurry to the gap between the building structure and the waterproof layer through the first grouting channel and the grouting flow channel, and fill the gap, thereby not adding damage points to the waterproof layer.

Description

Technical Field

[0001] This invention relates to the field of building waterproofing technology, and more particularly to a device for preventing leakage in building structures. Background Technology

[0002] Traditional curtain grouting methods require drilling through the structural and waterproof layers of the building to inject grout into the soil, forming a waterproof curtain to prevent groundwater from seeping into the wall. However, in actual construction, this process involves a large amount of drilling, extended construction time, and high costs. Large-area sidewalls require multiple rows of fan-shaped holes and repeated grouting in sections to barely form a continuous curtain. While structural grouting avoids external drilling, the internal grouting pressure can cause the concrete to crack due to internal pressure expansion. The conventional grouting pressure range causes the grout to foam and expand inside the wall, generating a splitting force from the inside out, opening up existing fine gaps and forming new penetrating cracks, leading to a continuous increase in leakage points. At the same time, dense drilling and installation of grouting nozzles can cut through reinforcing bars, damage the protective layer, weaken the wall's cross-sectional strength, and improper sealing of grouting holes can permanently form water channels, exacerbating the risk of leakage. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in related technologies. To this end, this invention proposes a building structure anti-leakage device, which aims to deliver grout between the structural layer and the waterproof layer without creating new points of damage to the waterproof layer. This effectively prevents leakage in the building structure, avoids damage to the structure during grouting, and improves the durability of the waterproof layer.

[0004] The building structure waterproofing device according to an embodiment of the present invention includes: The first pair of tie rods is provided with a first grouting channel extending axially; The second pair of tie rods has one end connected to one end of the first pair of tie rods, and the second pair of tie rods is provided with an axially extending grouting channel, which is connected to the first grouting channel; A water-stopping component is sleeved at the connection between the first tie rod and the second tie rod, wherein the water-stopping component is pre-embedded in the building structure, the end of the first tie rod away from the second tie rod extends out of the first side of the building structure, and the end of the second tie rod away from the first tie rod extends out of the second side of the building structure.

[0005] The building structure anti-seepage device according to an embodiment of the present invention delivers grout to the space between the building structure and the waterproof layer through a pre-reserved first grouting channel and grouting flow channel, filling the gaps without creating new points of damage to the waterproof layer, thus achieving the purpose of delivering grout between the building structure layer and the waterproof layer. It effectively blocks leakage paths and avoids structural damage caused by internal high pressure, significantly improving waterproof reliability and extending the service life of the building.

[0006] According to one embodiment of the present invention, the water-stopping component is a water-stopping disc, the water-stopping disc has a cavity, and the side of the water-stopping disc facing the second tie rod has a grout outlet hole communicating with the cavity. The first tie rod also has a second grouting channel extending axially, and the second grouting channel is connected to the cavity.

[0007] According to one embodiment of the present invention, the water-stop plate has a plurality of slurry outlet holes, and the plurality of slurry outlet holes are arranged at intervals; And / or, a stop cloth is attached to the side surface of the water-stop disc facing the second tie rod, and the stop cloth covers the slurry outlet.

[0008] According to one embodiment of the present invention, the first tie rod is provided with a plurality of second grouting channels, and the plurality of second grouting channels are arranged at intervals around the first grouting channel.

[0009] According to an embodiment of the present invention, the building structure anti-leakage device includes a first anti-reverse component, the first anti-reverse component includes a first elastic element and a first anti-reverse ball, one end of the first elastic element is connected to the second tie rod adjacent to one end of the first tie rod, the other end of the first elastic element is connected to the first anti-reverse ball, and the first anti-reverse ball is adapted to abut against the outlet of the first grouting channel. And / or, the building structure anti-leakage device includes a second anti-reverse component, the second anti-reverse component includes a second elastic element and a second anti-reverse ball, one end of the second elastic element is connected to the water-stop plate, the other end of the second elastic element is connected to the second anti-reverse ball, and the second anti-reverse ball is adapted to abut against the outlet of the second grouting channel.

[0010] According to one embodiment of the present invention, the first tie rod is provided with a first annular protrusion at one end adjacent to the second tie rod, and the second tie rod is provided with a second annular protrusion at one end adjacent to the first tie rod. The water-stopping element is disposed between the first annular protrusion and the second annular protrusion. The building structure anti-seepage device further includes a first sealing ring and a second sealing ring, the first sealing ring being sandwiched between the water-stopping element and the first annular protrusion, and the second sealing ring being sandwiched between the water-stopping element and the second annular protrusion.

[0011] According to one embodiment of the present invention, the first tie rod includes: The first grouting pipe is provided with the first grouting channel, and one end of the first grouting pipe is connected to the second tie rod; A first connecting plug, one end of which is detachably connected to the end of the first grouting pipe away from the second tie rod; The first connecting rod has one end detachably connected to the end of the first connecting plug away from the first grouting pipe, and the other end is used to extend out of the mold supporting the building structure.

[0012] According to one embodiment of the present invention, one end of the first connecting plug is provided with a first connecting hole and the other end is provided with a second connecting hole. One end of the first grouting pipe is inserted into the first connecting hole, and one end of the first connecting rod is inserted into the second connecting hole. The depth of the first connecting hole is greater than the depth of the second connecting hole.

[0013] According to one embodiment of the present invention, the second tie rod includes: The second grouting pipe is provided with the grouting channel, and one end of the second grouting pipe is connected to the first tie rod; The second connecting plug has one end detachably connected to the end of the second grouting pipe away from the first tie rod; The second connecting rod has one end detachably connected to the end of the second connecting plug away from the second grouting pipe, and the other end is used to extend out of the mold supporting the building structure.

[0014] According to one embodiment of the present invention, the building structure anti-seepage device further includes a grouting plug, which is used to seal the end of the first grouting channel away from the second tie rod; And / or, the building structure anti-leakage device further includes a grouting connector, which is detachably connected to the end of the first grouting channel away from the second tie rod.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a building structure anti-leakage device provided in an embodiment of the present invention.

[0018] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 This is a schematic diagram of the end face of the water-stopping component provided in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of a building structure anti-leakage device provided in another embodiment of the present invention.

[0021] Figure 5 yes Figure 4 A magnified view of a section at point B.

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the first grouting pipe provided in an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the cross-sectional structure of the second grouting pipe provided in an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the structure of the waterstop plate facing the second tie rod provided in an embodiment of the present invention.

[0025] Figure 9 This is a schematic diagram of the installation structure of the anti-seepage device for building structures provided in an embodiment of the present invention, which is in an uncast state.

[0026] Figure 10 This is a schematic diagram of the installation structure of the anti-seepage device for building structures provided in an embodiment of the present invention, which is in the completed pouring state.

[0027] Figure 11 This is a schematic diagram of the structure of the building structure waterproofing device provided in the embodiment of the present invention after the removal of the tie structure.

[0028] Figure 12 This is a schematic diagram of the grouting flow direction of the building structure anti-seepage device provided in the embodiment of the present invention.

[0029] Figure 13 This is a schematic diagram of the structure of the first connecting plug provided in an embodiment of the present invention.

[0030] Figure 14 This is a schematic diagram of the grouting plug provided in an embodiment of the present invention.

[0031] Figure 15 This is a cross-sectional structural diagram of the grouting connector provided in an embodiment of the present invention.

[0032] Figure 16 This is a schematic diagram of the end face structure of the grouting connector provided in an embodiment of the present invention.

[0033] Figure label: 1. First tie rod; 11. First grouting pipe; 111. First grouting channel; 112. Second grouting channel; 113. First annular protrusion; 12. First connecting plug; 121. First connecting hole; 122. Second connecting hole; 13. First connecting rod; 2. Second tie rod; 21. Second grouting pipe; 211. Grouting channel; 212. Second annular protrusion; 22. Second connecting plug; 23. Second connecting rod; 3. Waterstop component; 31. Waterstop plate; 311. Cavity; 312. Grout outlet hole; 313. Stop cloth; 4. First anti-reverse assembly; 41. First elastic element; 42. First anti-reverse ball; 5. Second anti-reverse assembly; 51. Second elastic element; 52. Second anti-reverse ball; 6. First sealing ring; 7. Second sealing ring; 8. Grouting plug; 9. Grouting connector; 102. Channel steel back rib; 104. Nut; 103. Gasket; 101. Waterproof layer. Detailed Implementation

[0034] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0035] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0037] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Traditional curtain grouting suffers from problems such as poor curtain continuity, grout loss under dynamic water conditions, and difficulty in penetration into low-permeability strata, leading to waterproofing failure, high construction costs, and environmental pollution. Structural grouting faces drawbacks such as internal pressure cracking of concrete, the creation of new secondary leakage joints, and the weakening of wall cross-sections due to drilling. Especially in the side walls of buildings, tie rods are often used on-site to fix the formwork on both sides. Problems with concrete pouring can cause the water-stop tie rods to fail, and after conventional failure, it is difficult to solve the leakage problem without damaging the waterproof layer.

[0040] Please refer to the following for details. Figure 1 and Figure 11This application proposes a seepage prevention device for building structures. It comprises a first tie rod 1 with a first grouting channel 111 extending axially, pre-embedded within the building structure; and a second tie rod 2, one end connected to the first tie rod 1 and having a grouting flow channel 211 extending axially and communicating with the first grouting channel 111. A water-stopping element 3 is fitted at the connection point of the two tie rods and pre-embedded within the building structure. The end of the first tie rod 1 away from the second tie rod 2 extends out onto a first side of the building structure, and the end of the second tie rod 2 away from the first tie rod 1 extends out onto a second side of the building structure. It should be noted that the second side of the building structure is used to attach a waterproof layer 101. This device aims to provide an effective way to achieve grouting seepage prevention within the structure or between the structure and the waterproof layer 101 without damaging the building structure and the waterproof layer 101, thus avoiding the drawbacks of traditional grouting methods.

[0041] Specifically, such as Figure 2 As shown, the first tie rod 1 is designed to have a first grouting channel 111 extending along its axial direction. The first grouting channel 111 can be a tubular structure arranged along the length of the tie rod. For example, the first tie rod 1 can be in the form of a hollow screw, with its internal space serving as the first grouting channel 111. The arrangement of the first grouting channel 111 provides an internal path for subsequent grouting operations, allowing the grout to be directly delivered to a predetermined area inside the building structure.

[0042] Furthermore, one end of the second pair of tie rods 2 is connected to one end of the first pair of tie rods 1. This connection can be achieved through threaded connection, welding connection, or snap-fit ​​connection, ensuring a stable mechanical connection between the two rods. Figure 4 and Figure 7 As shown, the second pair of tie rods 2 also has a grouting channel 211 extending along its axial direction. The grouting channel 211 is connected to the first grouting channel 111, forming a continuous grout delivery path. For example, the second pair of tie rods 2 can also be in the form of a hollow screw, with its internal space serving as the grouting channel 211, and connected to the first grouting channel 111 of the first pair of tie rods 1 via a connector. Thus, grout can be injected from one end of the first pair of tie rods 1, passing through the first grouting channel 111 and the grouting channel 211, and finally reaching the preset grouting area.

[0043] In addition, such as Figure 2 and Figure 3As shown, the water-stopping element 3 is fitted onto the connection between the first pair of tie rods 1 and the second pair of tie rods 2. The water-stopping element 3 can be an annular gasket 103, a disc-shaped component, or a seal with a specific shape, and its material can be rubber, plastic, or metal, or other materials with good water-stopping properties. The water-stopping element 3 is pre-embedded inside the building structure during concrete pouring. During installation, the end of the first pair of tie rods 1 furthest from the second pair of tie rods 2 is designed to extend out from the first side of the building structure, while the end of the second pair of tie rods 2 furthest from the first pair of tie rods 1 extends out from the second side of the building structure. The second side of the building structure is typically used to attach the waterproof layer 101. When leakage occurs in the building structure, grout can be injected from the first pair of tie rods 1 extending out from the first side of the building structure. The grout is delivered through internal channels to the gap between the building structure and the waterproof layer 101, thereby sealing the leakage point and avoiding damage to the already laid waterproof layer 101.

[0044] For example, the entire sidewall is equipped with a structural anti-seepage device, similar to the traditional curtain grouting hole layout, thus eliminating the drilling step and enabling injection between the building structure and the waterproof layer 101, which is impossible with traditional curtain grouting. Before the construction of the waterproof layer 101, traditional three-section tie bolts require sealing the tie bolt holes and waterproofing treatment. However, with this structural anti-seepage device, after removing the outer tie structure, the waterproof layer 101 can be applied directly. When cracks or surface seepage appear in the sidewall, or when there is seepage in areas other than the tie bolts, the first grouting channel 111 can be activated to inject water-based asphalt or other materials that can bond with the building structure and the waterproof layer 101 for grouting anti-seepage treatment.

[0045] The structural waterproofing device of this application, by pre-embedding the grouting channel inside the tie rod and installing a water-stopping component 3 at the connection, enables precise grouting from one side of the building structure to the gaps between the structure and the waterproof layer 101 without drilling holes or damaging the waterproof layer 101 after concrete pouring. This effectively solves the problems of traditional grouting methods that easily cause structural damage, create new leakage points, and damage the waterproof layer 101, improving the efficiency and reliability of waterproofing treatment, and is particularly suitable for waterproofing needs in sidewall areas.

[0046] like Figure 4 and Figure 5 As shown, this application further proposes that the water-stopping component 3 is a water-stopping plate 31, the water-stopping plate 31 is provided with a cavity 311, and the side of the water-stopping plate 31 facing the second tie rod 2 is provided with a grout outlet 312 communicating with the cavity 311. The first tie rod 1 is also provided with a second grouting channel 112 extending axially, and the second grouting channel 112 is connected to the cavity 311.

[0047] Specifically, the waterstop plate 31 can be made of rubber, PVC, metal, or composite materials, and its shape can be circular, square, or irregular to adapt to different structural and construction requirements. The waterstop plate 31 has a cavity 311, which is a reserved space inside the waterstop plate 31 to accommodate the grout. The cavity 311 can be designed as an annular cavity, a radial cavity, or a grid-like cavity to optimize the distribution efficiency of the grout. For example, it can be designed as an annular cavity around a central axis.

[0048] The waterstop plate 31 has a grout outlet 312 on the side facing the second tie rod 2, which communicates with the cavity 311. The grout outlet 312 is a hole connecting the surface of the waterstop plate 31 to the internal cavity 311, used to discharge the grout from the cavity 311 and allow it to enter the building structure surrounding the waterstop plate 31. The grout outlet 312 can be designed as circular, elliptical, or slit-shaped, and its number and distribution density can be adjusted according to the grouting range and effect requirements. For example, multiple grout outlets 312 can be evenly distributed along the circumference of the waterstop plate 31.

[0049] The first pair of tie rods 1 is also provided with a second grouting channel 112 extending axially. The second grouting channel 112 is an independent channel extending along its axial direction inside the first pair of tie rods 1. The second grouting channel 112 can be formed by drilling holes in the screw body, and its cross-sectional shape can be circular, square, or other shapes suitable for grout flow. The second grouting channel 112 is connected to the cavity 311, ensuring that the grout injected through the second grouting channel 112 can directly enter the cavity 311 inside the waterstop plate 31.

[0050] Through the above technical solution, the cavity 311 inside the waterstop plate 31 serves as a grout distribution space. The grout outlet 312, opened on the side facing the second tie rod 2, enables directional delivery of grout from inside the tie rod to the outside of the waterstop plate 31. The second grouting channel 112 in the first tie rod 1 provides an independent delivery path for the grout, ensuring that the grout can directly enter the cavity 311 of the waterstop plate 31, thereby achieving precise grouting of specific areas inside the building structure. In this way, the anti-seepage device is no longer merely a passive defense subject to the quality of on-site concrete vibration, but can actively fill the tiny gaps or pores inside the building structure through grouting, fundamentally improving the anti-seepage performance of the building structure.

[0051] Please refer to the reference. Figure 4 , Figure 5 and Figure 8 This application further proposes that the waterstop plate 31 has a plurality of slurry outlet holes 312, which are spaced apart; in one embodiment, a stop cloth 313 is attached to the side surface of the waterstop plate 31 facing the second tie rod 2, and the stop cloth 313 covers the slurry outlet holes 312.

[0052] Specifically, the waterstop plate 31 has multiple grout outlet holes 312, which are spaced apart. The multiple grout outlet holes 312 are designed to overcome problems such as uneven grout distribution, localized accumulation, and grouting blind spots that may occur with a single grout outlet point during grouting. The spaced arrangement ensures that each grout outlet hole 312 can cover a different area when functioning, preventing excessive grout concentration at a single point, thereby improving the overall efficiency and sealing effect of grouting. In one implementation, the multiple grout outlet holes 312 can be evenly arranged along the circumference of the waterstop plate 31, forming a ring array. In another implementation, the multiple grout outlet holes 312 can also be distributed radially or in a grid pattern on the surface of the waterstop plate 31 to cover a wider area.

[0053] Meanwhile, a stop cloth 313 is attached to the surface of the waterstop 31 facing the second tie rod 2, covering the grout outlet holes 312. The main function of the stop cloth 313 is to prevent concrete grout or its aggregates and impurities from entering the cavity 311 of the waterstop 31 during concrete pouring. In one implementation, the stop cloth 313 can be made of materials such as non-woven fabric, geotextile, or polymer filter membrane with good permeability, tensile strength, and corrosion resistance. The stop cloth 313 can be firmly attached to the surface of the waterstop 31 facing the second tie rod 2 by means of adhesive, hot-melt, or mechanical fixing, ensuring that it completely covers all grout outlet holes 312.

[0054] By providing multiple spaced-apart grout outlet holes 312 on the waterstop plate 31, the grout can simultaneously penetrate and diffuse from the cavity 311 of the waterstop plate 31 into multiple directions within the building structure. This improves the coverage and uniformity of the grout in the target area, effectively avoiding grouting blind spots caused by localized grout accumulation, thus ensuring the overall sealing effect and seepage prevention performance of the grouting. Simultaneously, a stop cloth 313 is attached to the surface of the waterstop plate 31 facing the second tie rod 2, covering all the grout outlet holes 312. During the concrete pouring stage, the stop cloth 313 effectively prevents concrete grout from entering the cavity 311 and grout outlet holes 312 of the waterstop plate 31.

[0055] Please refer to the reference. Figure 5 and Figure 6 This application further proposes that the first tie rod 1 is provided with a plurality of second grouting channels 112, and the plurality of second grouting channels 112 are arranged at intervals around the first grouting channel 111.

[0056] Specifically, the multiple second grouting channels 112 are auxiliary grouting paths set inside or in the structure of the first tie rod 1. Their main function is to guide the grout from inside the first tie rod 1 to the cavity 311 of the waterstop plate 31. By adding multiple second grouting channels 112 distributed around the first grouting channel 111 on the first tie rod 1, the grout delivery path is optimized. During the grouting process, the grout no longer relies on a single channel to enter the cavity 311 of the waterstop plate 31, but achieves multi-directional synchronous injection through multiple surrounding second grouting channels 112. This ensures better flow balance of the grout when entering the cavity 311 of the waterstop plate 31, avoiding excessive local pressure or dead zones in grout filling caused by single-point grouting.

[0057] like Figure 5 As shown, this application further proposes a building structure anti-leakage device including a first check component 4, the first check component 4 including a first elastic element 41 and a first check ball 42, one end of the first elastic element 41 being connected to the second tie rod 2 adjacent to one end of the first tie rod 1, and the other end of the first elastic element 41 being connected to the first check ball 42, the first check ball 42 being adapted to abut against the outlet of the first grouting channel 111; optionally, the building structure anti-leakage device includes a second check component 5, the second check component 5 including a second elastic element 51 and a second check ball 52, one end of the second elastic element 51 being connected to the water-stop plate 31, and the other end of the second elastic element 51 being connected to the second check ball 52, the second check ball 52 being adapted to abut against the outlet of the second grouting channel 112.

[0058] The first check valve assembly 4 is designed to ensure unidirectional flow of grout within the first grouting channel 111. It can be implemented using various structures; for example, a ball valve-type check valve structure can be used, where the ball abuts against the valve seat under the action of a spring. A first elastic element 41 provides a restoring force to reset the first check ball 42 and seal the channel when the grouting pressure decreases or stops. It can be a helical compression spring or an elastomer made of a highly elastic polymer material, such as rubber or polyurethane. The first check ball 42 engages with the outlet of the first grouting channel 111, forming a seal under the action of the first elastic element 41. Its shape is typically spherical, and the material can be corrosion-resistant and wear-resistant, such as stainless steel, ceramic, or high-strength engineering plastics. In some embodiments, a conical valve core can be used instead of a ball to provide a more stable sealing effect.

[0059] The second check valve assembly 5 is designed to ensure unidirectional entry of grout into the cavity 311 of the stop plate 31, preventing backflow. Similar to the first check valve assembly 4, it can employ a ball valve-type check valve structure or a duckbill valve-type structure to adapt to different grouting environments and grout characteristics. The second elastic element 51 provides restoring force to reset the second check ball 52 and seal the channel when the grouting pressure decreases or stops. It can be a metal elastic element such as a helical compression spring or torsion spring, or an elastomer made of a polymer material with good elasticity, such as rubber or polyurethane elastic elements. The second check ball 52 cooperates with the outlet of the second grouting channel 112, forming a seal under the action of the second elastic element 51. Its shape is usually spherical, and the material can be a corrosion-resistant and wear-resistant material, such as stainless steel, ceramic, or high-strength engineering plastic. In some embodiments, a conical valve core can be used instead of a ball to provide a more stable sealing effect.

[0060] like Figure 5 As shown, this application further proposes that the first tie rod 1 is provided with a first annular protrusion 113 at one end adjacent to the second tie rod 2, and the second tie rod 2 is provided with a second annular protrusion 212 at one end adjacent to the first tie rod 1. The water-stopping element 3 is provided between the first annular protrusion 113 and the second annular protrusion 212. The building structure anti-seepage device also includes a first sealing ring 6 and a second sealing ring 7. The first sealing ring 6 is sandwiched between the water-stopping element 3 and the first annular protrusion 113, and the second sealing ring 7 is sandwiched between the water-stopping element 3 and the second annular protrusion 212.

[0061] Specifically, the first annular protrusion 113 is an annular protrusion structure that can be integrally formed on the first pair of tie rods 1, or fixed at a specific position on the first pair of tie rods by welding or threaded connection using an independent annular component, such as an annular gasket 103 or an annular sleeve. The main function of the first annular protrusion 113 is to provide stable axial restraint and compression surface for the subsequent seal. Similarly, the second annular protrusion 212 is also an annular protrusion structure that can be integrally formed on the second pair of tie rods 2, or fixed at a specific position on the second pair of tie rods 2 by an independent annular component. The second annular protrusion 212 works in conjunction with the first annular protrusion 113 to provide axial restraint for the water-stopping element 3. During device assembly, the water-stopping element 3 is positioned between the first annular protrusion 113 and the second annular protrusion 212 to ensure its axial stability and provide space for the installation and pressure of the sealing ring.

[0062] The first sealing ring 6 is an elastic annular sealing element, which can be made of rubber or elastomer material with cross-sectional shapes such as O-rings or rectangular rings. The first sealing ring 6 is sandwiched between the water-stopping element 3 and the first annular protrusion 113. When the device is tightened, the first annular protrusion 113 applies compressive force to the first sealing ring 6, causing it to undergo elastic deformation, thereby filling the tiny gap between the water-stopping element 3 and the first annular protrusion 113 to form a tight seal. Similarly, the second sealing ring 7 is also an elastic annular sealing element, which can be made of similar materials and structure as the first sealing ring 6. The second sealing ring 7 is sandwiched between the water-stopping element 3 and the second annular protrusion 212. When the device is tightened, the second annular protrusion 212 applies compressive force to the second sealing ring 7, causing it to undergo elastic deformation, thereby filling the tiny gap between the water-stopping element 3 and the second annular protrusion 212 to form a tight seal.

[0063] By setting a first sealing ring 6 between the water-stopping element 3 and the first annular protrusion 113, and a second sealing ring 7 between the water-stopping element 3 and the second annular protrusion 212, the elastic deformation capability of the sealing ring is utilized to form a tight sealing ring at the contact interface between the screw and the water-stopping element 3 under the squeezing action of the annular protrusion. This not only compensates for the small gaps caused by processing errors or installation deviations, but also forms multiple lines of defense inside the building structure, effectively blocking the path of the grout in the first grouting channel 111 to seep outward along the radial direction of the screw, thereby significantly improving the reliability and durability of the anti-leakage device.

[0064] like Figure 9 and Figure 10 As shown, this application further proposes that the first tie rod 1 includes a first grouting pipe 11, a first connecting plug 12, and a first connecting rod 13. The first grouting pipe 11 is provided with a first grouting channel 111, and one end of the first grouting pipe 11 is connected to the second tie rod 2. One end of the first connecting plug 12 is detachably connected to the end of the first grouting pipe 11 away from the second tie rod 2. One end of the first connecting rod 13 is detachably connected to the end of the first connecting plug 12 away from the first grouting pipe 11, and the other end is used to extend out of the mold supporting the building structure.

[0065] Specifically, the first grouting pipe 11 is the main body of the first tie rod 1, and it has a first grouting channel 111 inside, which is used to form a continuous grouting path inside the building structure. One end of the first grouting pipe 11 is connected to the second tie rod 2. This connection can be a threaded connection, a welded connection, or a mechanical connection achieved through a seal, so as to ensure the continuity and sealing of the grouting channel.

[0066] The first connecting plug 12 serves as an intermediate component connecting the first grouting pipe 11 and the first connecting rod 13. Its core function is to enable a detachable connection between the two and ensure the sealing of the connection. The first connecting plug 12 can be designed with internal and external threads, with one end connected to the first grouting pipe 11 via threads and the other end connected to the first connecting rod 13 via threads.

[0067] The first connecting rod 13 is the part of the first tie rod 1 used to connect to and provide support for the external mold system. One end of the first connecting rod 13 is detachably connected to the first connecting plug 12, and the other end is designed to extend out of the mold supporting the building structure, so as to be fixed to the external support structure of the mold (such as the channel steel back rib 102, the gasket 103, and the nut 104, etc.), thereby providing tension support for the mold during concrete pouring. The first connecting rod 13 can be made of high-strength threaded rod, solid round steel, or hollow tube, etc., and its detachable connection method can be threaded in, fixed with pins, or tightened with wedges, etc., to facilitate disassembly after the concrete has solidified.

[0068] Through the above technical solution, this application designs the first tie rod 1 as a modular and detachable structure. During construction, the first connecting rod 13 extends out of the mold and is fixed, thus providing effective support for the mold. After the concrete is poured and reaches a certain strength, construction workers can easily disassemble the first connecting rod 13 located outside the mold, thereby smoothly removing the mold. The first grouting pipe 11 remains inside the structure as an embedded part, and the first connecting plug 12 ensures the sealing of the first grouting channel 111.

[0069] Please refer to the reference. Figure 10 , Figure 11 and Figure 13 This application further proposes that one end of the first connecting plug 12 is provided with a first connecting hole 121 and the other end is provided with a second connecting hole 122. One end of the first grouting pipe 11 is inserted into the first connecting hole 121 and one end of the first connecting rod 13 is inserted into the second connecting hole 122. The depth of the first connecting hole 121 is greater than the depth of the second connecting hole 122, so that after the concrete is poured, the first grouting pipe 11 extends beyond the inner surface of the structural groove by a sufficient length.

[0070] Specifically, the first connecting plug 12 can be made of various materials and structural forms; for example, it can be integrally molded from high-strength plastic. The first connecting hole 121 and the second connecting hole 122 are structures inside the first connecting plug 12 used to accommodate and fix the first grouting pipe 11 and the first connecting rod 13. The first connecting hole 121 is specifically for inserting one end of the first grouting pipe 11, while the second connecting hole 122 is for inserting one end of the first connecting rod 13. The inner walls of the first connecting hole 121 and the second connecting hole 122 can have a threaded structure to ensure the stability and detachability of the connection. By inserting the corresponding components into the corresponding connecting holes, the structural integrity and stability of the entire tie rod assembly can be ensured during concrete pouring. Furthermore, by precisely controlling the difference in hole depth inside the first connecting plug 12, a physical limiting mechanism is provided for the final pre-embedded depth of the first grouting pipe 11 in the building structure. By ensuring that the end of the first grouting pipe 11 can stably extend beyond the inner surface of the structural groove after the concrete has solidified and the mold has been removed, sufficient operating space is provided for subsequent grouting operations. This avoids the problem that the first grouting pipe 11 is completely covered by concrete or buried too deep and difficult to access, which is beneficial for the installation of the grouting connector 9 and the connection of the grouting pump.

[0071] like Figure 9 As shown, this application further proposes that the second tie rod 2 includes a second grouting pipe 21, a second connecting plug 22, and a second connecting rod 23.

[0072] The second grouting pipe 21 has an internal grouting channel 211 for forming a continuous grout delivery path within the building structure. The grouting channel 211 ensures that the grouting material can be smoothly injected from the outside into the predetermined area inside the building structure, thereby achieving the purpose of preventing leakage. One end of the second grouting pipe 21 is connected to the first tie rod 1, which can be a threaded connection, welded connection, snap-fit ​​connection, or flange connection using a sealing gasket, etc., to ensure the continuity and sealing of the grouting channel and prevent grout leakage at the connection.

[0073] One end of the second connecting plug 22 is detachably connected to the end of the second grouting pipe 21 away from the first tie rod 1, for example, by means of threaded engagement, quick-connect fitting, clamp connection, or pin fixing. The main function of the second connecting plug 22 is to provide a reliable and easy-to-operate interface, allowing the second grouting pipe 21 to flexibly connect with the external second connecting rod 23, while ensuring the sealing of the connection.

[0074] The second connecting rod 23 is a component used to extend the grouting channel to the outside of the building mold. One end of it is detachably connected to the end of the second connecting plug 22 away from the second grouting pipe 21, while the other end extends out of the mold supporting the building structure to be fixed to the external support structure of the mold (such as the channel steel back rib 102, gasket 103, and nut 104, etc.), thereby providing tensile support to the mold during concrete pouring. Its detachability allows it to be removed as needed after the mold is dismantled.

[0075] like Figure 14 As shown, this application further proposes that the building structure anti-leakage device also includes a grouting plug 8, which is used to seal the end of the first grouting channel 111 away from the second tie rod 2; as Figure 15 and Figure 16 As shown, optionally, the building structure anti-seepage device also includes a grouting connector 9, which is detachably connected to the end of the first grouting channel 111 away from the second tie rod 2.

[0076] The grouting plug 8 is used to physically seal the first grouting channel 111 or the second grouting channel 112. Its function is to effectively seal the end of the first grouting channel 111 away from the second tie rod 2, thereby blocking the path of external moisture to seep into the building structure through the channel. The grouting plug 8 can be implemented in various forms, such as a conical plug, an expansion plug, or a threaded plug, and its material can be rubber, plastic, or metal, etc., to adapt to different grouting channel sizes and sealing requirements.

[0077] Grouting connector 9 is a component that provides a standardized, detachable interface. Its main function is to provide a convenient connection point at the end of the grouting channel, so that grouting equipment can be quickly and easily connected when grouting or maintenance is required in the later stages of the building structure. Grouting connector 9 can be designed in various structures, such as quick couplings, threaded couplings, or snap-fit ​​couplings.

[0078] Finally, it should be noted that the above embodiments are only for illustrating the present invention and not for limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the protection scope of the present invention.

Claims

1. A building structure anti-leakage device, characterized in that, include: The first pair of tie rods is provided with a first grouting channel extending axially; The second pair of tie rods has one end connected to one end of the first pair of tie rods, and the second pair of tie rods is provided with an axially extending grouting channel, which is connected to the first grouting channel; A water-stopping component is sleeved at the connection between the first tie rod and the second tie rod, wherein the water-stopping component is pre-embedded in the building structure, the end of the first tie rod away from the second tie rod extends out of the first side of the building structure, and the end of the second tie rod away from the first tie rod extends out of the second side of the building structure.

2. The building structure anti-leakage device according to claim 1, characterized in that, The water-stopping component is a water-stopping disc, which has a cavity inside. The side of the water-stopping disc facing the second tie rod has a grout outlet hole that communicates with the cavity. The first tie rod also has a second grouting channel that extends axially and is connected to the cavity.

3. The building structure anti-leakage device according to claim 2, characterized in that, The water-stop plate has multiple slurry outlet holes, which are spaced apart from each other. And / or, a stop cloth is attached to the side surface of the water-stop disc facing the second tie rod, and the stop cloth covers the slurry outlet.

4. The building structure anti-leakage device according to claim 2, characterized in that, The first tie rod is provided with a plurality of second grouting channels, which are arranged at intervals around the first grouting channel.

5. The building structure anti-leakage device according to claim 2, characterized in that, The building structure anti-leakage device includes a first anti-reverse component, which includes a first elastic element and a first anti-reverse ball. One end of the first elastic element is connected to the second tie rod adjacent to one end of the first tie rod, and the other end of the first elastic element is connected to the first anti-reverse ball. The first anti-reverse ball is adapted to abut against the outlet of the first grouting channel. And / or, the building structure anti-leakage device includes a second anti-reverse component, the second anti-reverse component includes a second elastic element and a second anti-reverse ball, one end of the second elastic element is connected to the water-stop plate, the other end of the second elastic element is connected to the second anti-reverse ball, and the second anti-reverse ball is adapted to abut against the outlet of the second grouting channel.

6. The building structure anti-leakage device according to claim 1, characterized in that, The first pair of tie rods has a first annular protrusion at one end adjacent to the second pair of tie rods, and the second pair of tie rods has a second annular protrusion at one end adjacent to the first pair of tie rods. The water-stopping element is disposed between the first annular protrusion and the second annular protrusion. The building structure anti-seepage device also includes a first sealing ring and a second sealing ring. The first sealing ring is sandwiched between the water-stopping element and the first annular protrusion, and the second sealing ring is sandwiched between the water-stopping element and the second annular protrusion.

7. The building structure anti-leakage device according to any one of claims 1 to 6, characterized in that, The first tie rod includes: The first grouting pipe is provided with the first grouting channel, and one end of the first grouting pipe is connected to the second tie rod; A first connecting plug, one end of which is detachably connected to the end of the first grouting pipe away from the second tie rod; The first connecting rod has one end detachably connected to the end of the first connecting plug away from the first grouting pipe, and the other end is used to extend out of the mold supporting the building structure.

8. The building structure anti-leakage device according to claim 7, characterized in that, One end of the first connecting plug is provided with a first connecting hole, and the other end is provided with a second connecting hole. One end of the first grouting pipe is inserted into the first connecting hole, and one end of the first connecting rod is inserted into the second connecting hole. The depth of the first connecting hole is greater than the depth of the second connecting hole.

9. The building structure anti-leakage device according to any one of claims 1 to 6, characterized in that, The second tie rod includes: The second grouting pipe is provided with the grouting channel, and one end of the second grouting pipe is connected to the first tie rod; The second connecting plug has one end detachably connected to the end of the second grouting pipe away from the first tie rod; The second connecting rod has one end detachably connected to the end of the second connecting plug away from the second grouting pipe, and the other end is used to extend out of the mold supporting the building structure.

10. The building structure waterproofing device according to any one of claims 1 to 6, characterized in that, The building structure anti-seepage device also includes a grouting plug, which is used to seal the end of the first grouting channel away from the second tie rod; And / or, the building structure anti-leakage device further includes a grouting connector, which is detachably connected to the end of the first grouting channel away from the second tie rod.

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