Water seepage prevention device for water conservancy construction
By installing a plug-in frame and support arm on the back side of the water-stop ring to disperse water pressure, combined with sealing materials and steel reinforcement, the problem of easy weld breakage at the weld joints in water conservancy construction was solved, thereby improving structural stability and seepage prevention effect, and reducing material and construction costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-03-06
AI Technical Summary
In water conservancy construction, the weld between the pipe through the wall and the water-stop ring is prone to cracking due to concentrated water pressure, which increases the risk of leakage. In addition, the thickness requirements for the pipe and the water-stop ring are high, which affects the waterproofing effect and construction cost.
A water-proofing device for hydraulic construction is designed. By installing multiple plug-in frames and supports on the back side of the water-stop ring, the water pressure is distributed to the wall using the supports. Combined with sealing materials and steel reinforcement, the structural strength is enhanced, and the pressure at the weld is reduced.
It effectively disperses water pressure, reduces the possibility of weld breakage, reduces material requirements, improves waterproofing performance and construction efficiency, enhances structural stability, and reduces later maintenance costs.
Smart Images

Figure CN223975668U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a seepage prevention device for water conservancy construction, belonging to the field of water conservancy engineering. Background Technology
[0002] During hydraulic construction, water-stop rings are installed around pipes that pass through walls. The water-stop ring is securely welded to the pipe, and then the pipe passes through the wall. The gap between the pipe and the wall is then filled tightly with waterproof sealant to prevent water leakage. After the structure consisting of the pipe and water-stop ring is installed in the wall, the water-stop ring on the water-repellent side of the wall will bear significant water pressure. Since the connection between the water-stop ring and the pipe relies solely on their contact point, all the water pressure applied to the water-stop ring will be transferred to the weld between the pipe and the water-stop ring. This places high demands on the thickness of both the pipe and the water-stop ring; they must possess sufficient strength to withstand the water pressure. Simultaneously, under continuous water pressure, the welded area experiences concentrated stress, making it more prone to weld cracking, which in turn affects the waterproofing effect and increases the risk of leakage. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a seepage prevention device for water conservancy construction to solve the problems mentioned in the background technology. This utility model reduces the pressure at the weld between the pipe and the water-stop ring, reduces the possibility of weld failure, and correspondingly reduces the thickness requirements of the pipe and the water-stop ring.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a water-proofing device for hydraulic construction, comprising a wall with a recessed opening on one side. A pipe is inserted into the recessed opening, and water-stop rings are provided on both sides of the recessed opening. The water-stop rings are fitted onto the pipes and connected to the pipes by welding. On the back side of the water-stop ring, multiple insertion frames are installed in a ring at equal intervals. Support arms are inserted into the insertion frames and arranged along the radial direction of the water-stop rings. The support arms are kept in a fixed relative position with the insertion frames by screws. A protrusion is fitted onto the end of the support arm away from the insertion frame, and the protrusion is integrally formed with the wall.
[0005] Furthermore, the side of the protrusion facing the plug frame is recessed to form a plug interface, and the end of the support arm away from the plug frame is inserted into the plug interface.
[0006] Furthermore, a protective frame is installed inside the insertion interface, and the protective frame is fitted onto the support arm.
[0007] Furthermore, each of the two parallel sides of the protrusion has an integrally formed connecting part, and the connecting part and the wall are integrally cast and formed structures.
[0008] Furthermore, a retaining ring is fitted onto the water-stop ring and fixed to it. The end of the retaining ring away from the water-stop ring is in contact with the wall surface, and a grouting pipe joint is installed on the outer surface of the retaining ring.
[0009] Furthermore, the side of the plug frame facing away from the water-stop ring has a threaded hole, one end of the support arm has a positioning hole that matches the threaded hole, the screw is threaded into the threaded hole, and one end of the screw extends into the positioning hole.
[0010] Furthermore, the wall is equipped with a plurality of evenly arranged transverse ribs and a plurality of evenly arranged longitudinal ribs, the longitudinal ribs being arranged perpendicular to the transverse ribs, and the longitudinal ribs being connected to the transverse ribs by tie wires.
[0011] The beneficial effects of this utility model are:
[0012] 1. Multiple plug-in frames are installed on the back side of the water-stop ring. Support arms are inserted into the plug-in frames and connected to the protrusions on the wall. When the water-stop ring is subjected to water pressure, the support arms can distribute some of the pressure to the wall, reduce the pressure at the weld between the pipe and the water-stop ring, reduce the possibility of weld failure, and correspondingly reduce the thickness requirements of the pipe and the water-stop ring.
[0013] 2. The protective frame installed inside the connector is fitted onto the support arm, which can protect the inner wall of the connector from external damage, ensure the stability of the connection between the support arm and the protruding part of the wall, ensure the stability and reliability of the water pressure distribution structure, and maintain the anti-seepage performance for a long time. Attached Figure Description
[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0015] Figure 1 This is a schematic diagram of the structure of a water-proofing device for water conservancy construction according to the present invention;
[0016] Figure 2 This is another perspective view of the water-proofing device for water conservancy construction according to this utility model;
[0017] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0018] Figure 4 This is an exploded structural diagram of the protective frame, support arm, protrusion, pipe, water baffle and wall in a water-conservancy construction seepage prevention device of this utility model;
[0019] In the diagram: 1-wall, 2-connection, 3-protrusion, 4-support arm, 5-pipe, 6-waterstop ring, 7-transverse reinforcement, 8-longitudinal reinforcement, 9-retaining ring, 10-grouting pipe joint, 11-screw, 12-insertion frame, 13-protective frame, 14-insertion interface, 15-screw hole, 16-positioning hole. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a water-proofing device for hydraulic construction, comprising a wall 1, within which are installed multiple evenly arranged transverse reinforcements 7 and multiple evenly arranged longitudinal reinforcements 8. The longitudinal reinforcements 8 are arranged perpendicularly to the transverse reinforcements 7, and are connected to the transverse reinforcements 7 by tie wires. By rationally setting the mutually perpendicular transverse reinforcements 7 and longitudinal reinforcements 8 within the wall 1 and tightly connecting them with tie wires, the overall structural strength of the wall 1 is greatly enhanced. When the wall 1 is subjected to water pressure, these two types of reinforcements cooperate to jointly bear and distribute the pressure. In actual construction, the construction personnel first arrange the transverse reinforcements 7 and longitudinal reinforcements 8 according to the designed spacing, ensuring that they intersect perpendicularly. Subsequently, tie wires are used to securely bind the intersection points one by one. The connection of the tie wires not only makes the transverse reinforcements 7 and longitudinal reinforcements 8 form a stable steel reinforcement skeleton, but also effectively prevents the reinforcements from shifting during concrete pouring. In this way, after the concrete is poured and solidified, the reinforcements and concrete are tightly bonded together, forming a solid overall structure. This reinforced wall structure 1 possesses stronger resistance to compression, shear, and bending, enabling it to better withstand water pressure and other external forces such as earthquakes and water erosion. Wall 1 is less prone to cracking under strong external forces, thus preventing leakage problems caused by cracking. For water conservancy facilities, this significantly improves their safety and durability, reduces later maintenance costs and safety hazards, ensures the long-term stable operation of water conservancy projects, and provides a solid and reliable foundation for the rational utilization and allocation of water resources.
[0022] See Figure 1 and Figure 2A recessed opening is formed on one side of wall 1, into which a pipe 5 is inserted. Water-stop rings 6 are installed on both sides of the opening, fitted onto the pipe 5 and welded to it. A retaining ring 9 is fitted onto the water-stop ring 6 and fixed thereto. The end of the retaining ring 9 away from the water-stop ring 6 is flush with the surface of wall 1. A grouting pipe connector 10 is installed on the outer surface of the retaining ring 9, through which sealing material is injected. Commonly used sealing materials include epoxy resin and polyurethane sealant. These materials have good fluidity and adhesion, and can fully fill gaps during injection. As the sealing material is injected, it gradually fills every tiny gap between the water-stop ring 6 and wall 1, expelling air and forming a continuous, tight sealing layer. This sealing layer significantly enhances the sealing effect between the water-stop ring 6 and wall 1. It effectively prevents water penetration, whether under normal water pressure or with large water pressure fluctuations. It not only prevents water from eroding the wall 1 and avoids structural damage to the wall 1 due to leakage, but also protects the through-wall pipe 5 and extends its service life.
[0023] See Figures 1-4On the back side of the water-stop ring 6, multiple plug-in frames 12 are installed in a ring at equal intervals. Support arms 4 are inserted into the plug-in frames 12 and arranged along the radial direction of the water-stop ring 6. The support arms 4 are kept in a fixed relative position with the plug-in frames 12 by screws 11. The side of the plug-in frame 12 away from the water-stop ring 6 has a threaded hole 15. One end of the support arm 4 has a positioning hole 16 that matches the threaded hole 15. The screw 11 is threaded into the threaded hole 15 and one end of the screw 11 extends into the positioning hole 16. The end of the support arm 4 away from the plug-in frame 12 is fitted with a protrusion 3. The protrusion 3 is integrally formed with the wall 1. Connecting parts 2 are integrally formed on the two parallel sides of the protrusion 3. The connecting parts 2 are integrally cast with the wall 1. The connecting parts 2 increase the connection range between the protrusion 3 and the wall 1. Multiple plug-in frames 12 are installed at equal intervals on the back side of the water-stop ring 6. These plug-in frames 12 provide a stable installation position for the support arms 4. The support arm 4 is inserted into the connector frame 12, and its other end is tightly connected to the protrusion 3 on the wall 1. This ingenious structure plays a crucial role when the water-stop ring 6 is subjected to water pressure. Due to the water pressure, the water-stop ring 6 bears considerable pressure, which would normally be concentrated at the weld between the pipe 5 and the water-stop ring 6. However, in this device, the support arms 4 act as "force transmitters," distributing some of the pressure on the water-stop ring 6 to the connected wall 1. This effectively alleviates the pressure concentrated at the weld, greatly reducing the possibility of weld breakage. Simultaneously, because the pressure is reasonably distributed, the thickness requirements for the pipe 5 and the water-stop ring 6 are correspondingly reduced. In traditional waterproofing designs, to resist the influence of water pressure on the weld, the thickness of the pipe 5 and the water-stop ring 6 often needs to be increased, which not only increases material costs but may also affect the ease of construction to some extent. This device, through its innovative structural design, cleverly solves this problem, achieving both reduced material costs and improved construction efficiency while ensuring waterproofing performance.
[0024] See Figure 1 , Figure 3 and Figure 4 The protruding part 3 has a recessed interface 14 on the side facing the insertion frame 12. The end of the support arm 4 away from the insertion frame 12 is inserted into the interface 14. A protective frame 13 is installed inside the interface 14 and is fitted onto the support arm 4. The protective frame 13 plays a crucial role in ensuring the stability of the connection between the support arm 4 and the protruding part 3 of the wall 1. A stable connection is the foundation for ensuring the stability and reliability of the water pressure dispersion structure. Only when the support arm 4 and the protruding part 3 of the wall 1 are tightly and firmly connected can part of the pressure be smoothly transferred to the wall 1 when the water-stop ring 6 is subjected to water pressure, thus achieving the function of dispersing water pressure. The presence of the protective frame 13 not only avoids the possible loosening of the connection after damage to the inner wall of the interface 14, but also further enhances the fit between the support arm 4 and the interface 14, making the connection between the two more secure.
[0025] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A water retaining device for hydraulic construction, comprising a wall (1), characterized in that: The wall (1) is recessed on one side to form a reserved opening, the reserved opening is inserted with a pipeline (5), both sides of the reserved opening are provided with a water stop ring (6), the water stop ring (6) is sleeved on the pipeline (5) and connected with the pipeline (5) by welding, the water stop ring (6) on the backwater side is annularly and equidistantly provided with a plurality of plug-in frames (12) on one side, the plug-in frame (12) is inserted with a support arm (4), the support arm (4) is arranged along the radial direction of the water stop ring (6), the support arm (4) keeps the relative position unchanged with the plug-in frame (12) through a screw (11), one end of the support arm (4) away from the plug-in frame (12) is sleeved with a protruding part (3), the protruding part (3) is an integral molding structure with the wall (1).
2. The water seepage prevention device for water conservancy construction according to claim 1, characterized in that: The protruding part (3) is recessed on one side to form a plug-in opening (14), one end of the support arm (4) away from the plug-in frame (12) is inserted into the plug-in opening (14).
3. A water seepage prevention device for water conservancy construction according to claim 2, characterized in that: The plug-in opening (14) is provided with a guard frame (13), the guard frame (13) is sleeved on the support arm (4).
4. The water seepage prevention device for water conservancy construction according to claim 2, characterized in that: The protruding part (3) is integrally formed with a connecting part (2) on both parallel sides, the connecting part (2) is an integral pouring molding structure with the wall (1).
5. The water seepage prevention device for water conservancy construction according to claim 1, characterized in that: The water stop ring (6) is sleeved with a stop ring (9) connected with the water stop ring (6), one end of the stop ring (9) away from the water stop ring (6) is attached to the surface of the wall (1), the outer surface of the stop ring (9) is provided with a grouting pipe joint (10).
6. The water seepage prevention device for water conservancy construction according to claim 1, characterized in that: The plug-in frame (12) is provided with a threaded hole (15) on the side away from the water stop ring (6), one end of the support arm (4) is provided with a positioning hole (16) matched with the threaded hole (15), the screw (11) is threadedly connected in the threaded hole (15), one end of the screw (11) extends into the positioning hole (16).
7. The water seepage prevention device for water conservancy construction according to claim 1, characterized in that: The wall (1) is provided with a plurality of uniformly arranged transverse ribs (7) and a plurality of uniformly arranged longitudinal ribs (8), the longitudinal ribs (8) and the transverse ribs (7) are arranged perpendicular to each other, the longitudinal ribs (8) are connected with the transverse ribs (7) by lashing.