A steel edge rubber waterstop with a middle embedded type and a construction method thereof

Abstract

The application provides a middle-buried steel edge rubber waterstop and a construction method thereof. The middle-buried steel edge rubber waterstop comprises a first component, a second component and a protection assembly. The first component is connected with the second component through key groove cooperation. The protection assembly is detachably arranged on the surface of the exposed part of the second component after the installation of the second component is completed. The waterstop is designed as the first component and the second component which are connected through key groove cooperation. When the waterstop is installed, the weight and volume of the second component which is installed in advance are about half of those of the traditional waterstop. Therefore, the second component is relatively easy to protect. In addition, when the concrete is poured on one side, the exposed second part is protected by the protection assembly. Therefore, the exposed second part is prevented from being splashed by welding slag, scratched by machinery or scalded during cross operation, so as to avoid the problem of reduced waterstop performance and significantly improve the construction quality and reliability of the waterstop.

Description

Technical Field

[0001] This invention relates to the field of waterproofing technology in building engineering, and in particular to an embedded steel-edged rubber waterstop and its construction method. Background Technology

[0002] Embedded steel-edged rubber waterstops (hereinafter referred to as waterstops) are key waterproofing components for expansion joints in underground concrete structures, typically consisting of a central rubber body and two galvanized steel edges. In current construction processes, the waterstop is pre-embedded integrally in the middle of the structure during the first concrete pour. Due to the waterstop's large size and weight, and the overlapping work with formwork and rebar installation, the rubber surface of the waterstop is easily damaged by welding slag, mechanical scratches, or burns during rebar welding, formwork installation, and concrete pouring, resulting in reduced water-stopping performance. Furthermore, the exposed portion of the waterstop requires prolonged protection between installation and the second concrete pour, and the interface needs cleaning before the second pour, making operation inconvenient and prone to leakage even with minor damage. Once damaged, integral waterstops are difficult to replace and repair, significantly impacting water-stopping effectiveness and construction quality.

[0003] In view of the problems that existing embedded steel-edged rubber waterstops are prone to damage and difficult to protect during installation and construction, which affect the water-stopping effect and construction quality, those skilled in the art have been looking for solutions. Summary of the Invention

[0004] The purpose of this invention is to provide a centrally embedded steel-edged rubber waterstop and its construction method, so as to solve the problems of easy damage, difficulty in protection, and impact on water-stopping effect and construction quality of the centrally embedded steel-edged rubber waterstop in the installation and construction process.

[0005] To solve the above-mentioned technical problems, the present invention provides a centrally embedded steel-edged rubber waterstop, which includes a first component, a second component, and a protective component. The first component and the second component are connected by a keyway, and the protective component is detachably disposed on the surface of the exposed part after the second component is installed.

[0006] Optionally, in the embedded steel-edged rubber waterstop, the first component includes: a first steel edge, a first rubber strip, and several limiting keys. The first steel edge is disposed on a first side of the first rubber strip and extends along the length direction of the first rubber strip. The several limiting keys are disposed at predetermined intervals on a second side of the first rubber strip opposite to the first side.

[0007] Optionally, in the embedded steel-edged rubber waterstop, the second component includes: a second steel edge, a second rubber strip, and a limiting groove. The second steel edge is disposed on the first side of the second rubber strip and extends along the length direction of the second rubber strip. A plurality of limiting grooves are opened at predetermined intervals inside the second side of the second rubber strip opposite to the first side. The limiting groove is adapted to the limiting key, and the position of the limiting groove corresponds to the position of the limiting key of the first component.

[0008] Optionally, in the embedded steel-edged rubber waterstop, the protective component includes: a protective cover plate and a cover plate fastener. The cover plate fastener is inserted through the protective cover plate, and one end of the cover plate fastener has a fastening part that engages with the limiting groove. When the fastening part engages with the limiting groove, the protective cover plate is pressed tightly onto the second rubber strip.

[0009] Optionally, in the embedded steel-edged rubber waterstop, the protective cover plate is an aluminum protective cover plate.

[0010] Optionally, in the embedded steel-edged rubber waterstop, the protective cover plate has a U-shaped cross-section.

[0011] Optionally, in the embedded steel-edged rubber waterstop, the predetermined interval is 1m.

[0012] The present invention also provides a construction method for a centrally embedded steel-edged rubber waterstop, the construction method of which includes: when pouring concrete structure on one side of the expansion joint, pre-installing a second component, and installing the protective component on the exposed surface of the second component;

[0013] Before pouring the concrete structure on the other side of the expansion joint, the protective assembly is removed, and the first component and the second component are connected by keyway fitting.

[0014] The concrete structure on the other side of the expansion joint is poured.

[0015] Optionally, in the construction method of the embedded steel-edged rubber waterstop, the keyway connection between the first component and the second component includes: aligning a plurality of limiting keys of the first component with a plurality of limiting grooves of the second component one by one, and inserting the limiting keys into the corresponding limiting grooves, thereby connecting the two components through keyway connection.

[0016] Optionally, in the construction method of the embedded steel-edged rubber waterstop, before connecting the first component and the second component via keyway, the method further includes: pre-applying rubber sealant to the contact surface of the keyway connection between the first component and the second component.

[0017] In the embedded steel-edged rubber waterstop and its construction method provided by this invention, the embedded steel-edged rubber waterstop includes: a first component, a second component, and a protective component. The first component and the second component are connected by a keyway, and the protective component is detachably installed on the surface of the exposed portion after the second component is installed. By designing the waterstop as a first component and a second component connected by a keyway, the weight and volume of the pre-installed second component are approximately half that of traditional waterstops during installation, making it relatively easier to protect. Furthermore, when pouring concrete on one side, the protective component protects the exposed second part, preventing it from being damaged by welding slag, mechanical scratches, or burns during cross-operations, thus avoiding reduced waterstop performance and significantly improving the construction quality and reliability of the waterstop.

[0018] On the other hand, the first and second components, based on their respective limit keys and limit grooves, facilitate on-site positioning operations and prevent improper fitting due to incorrect operation. This improves the construction quality of the embedded steel-edged rubber waterstop and ensures the overall waterproofing continuity. Attached Figure Description

[0019] The above and other objects, features and advantages of this disclosure will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.

[0020] Figure 1 This is a schematic diagram of the first component and the second component before they are connected by keyway engagement in one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the second component in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram after S1 is executed in one embodiment of the present invention (single-sided pouring condition of expansion joint).

[0023] Figure 4 This is a schematic diagram after S3 is executed in one embodiment of the present invention (double-sided pouring condition of expansion joint).

[0024] In the picture:

[0025] A - First component; 1 - First steel edge; 3 - First rubber strip; 5 - Limit key;

[0026] B - Second component; 2 - Second steel edge; 4 - Second rubber belt; 6 - Limiting groove;

[0027] C - Protective component; 7 - Protective cover plate; 8 - Cover plate fastener. Detailed Implementation

[0028] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, further illustrates the embedded steel-edged rubber waterstop and its construction method proposed in this invention. The advantages and features of this invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this invention.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0030] In the description of the invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 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 invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Please refer to Figures 1 to 3 The embedded steel-edged rubber waterstop includes: a first component A, a second component B, and a protective component C. The first component A and the second component B are connected by a keyway, and the protective component is detachably mounted on the surface of the exposed part after the second component B is installed.

[0034] Please refer to Figure 1The first component A includes: a first steel edge 1, a first rubber strip 3 and a plurality of limiting keys 5. The first steel edge 1 is disposed on a first side of the first rubber strip 3 and extends along the length direction of the first rubber strip 3. The plurality of limiting keys 5 are disposed at predetermined intervals on a second side of the first rubber strip 3 opposite to the first side.

[0035] Please refer to Figure 2 The second component B includes a second steel edge 2, a second rubber band 4, and a limiting groove 6. The second steel edge 2 is disposed on the first side of the second rubber band 4 and extends along the length of the second rubber band 4. A plurality of limiting grooves 6 are formed at predetermined intervals inside the second side of the second rubber band 4 opposite to the first side. The limiting grooves 6 are adapted to the limiting keys 5, and the positions of the limiting grooves 6 correspond to the positions of the limiting keys 5 of the first component A. The spacing between the limiting keys 5 and the limiting grooves 6 is the same, so that the two can be subsequently docked and positioned. The predetermined interval is 1m, or can be adjusted appropriately according to actual needs.

[0036] Please refer to Figure 3 The protective component C includes a protective cover plate 7 and a cover plate fastener 8. The cover plate fastener 8 is inserted into the protective cover plate 7, and one end of the cover plate fastener 8 has a fastening part that engages with the limiting groove 6. When the fastening part engages with the limiting groove 6, the protective cover plate 7 is pressed tightly onto the second rubber band 4. Specifically, the protective cover plate 7 has a through hole, and the cover plate fastener 8 has the through hole.

[0037] In this embodiment, the protective cover plate 7 has a U-shaped cross-section to facilitate covering the exposed second component B, preventing it from being damaged by welding slag, mechanical scratches, or burns during cross-operations, thus avoiding reduced water-stopping performance and significantly improving the construction quality and reliability of the waterstop. In this embodiment, the protective cover plate 7 is an aluminum protective cover plate. The use of an aluminum protective cover plate is a preferred solution after comprehensive consideration, mainly based on its excellent balance between lightweight, corrosion resistance, machinability, cost, and protective performance.

[0038] Accordingly, this embodiment also provides a construction method for an embedded steel-edged rubber waterstop. See below for reference. Figures 1 to 4 This embodiment details the construction method of the embedded steel-edged rubber waterstop.

[0039] First, please refer to Figure 2 and Figure 3 In step S1, when pouring the concrete structure on one side of the expansion joint (i.e., the first pouring of concrete), the second component B is pre-installed, and the protective assembly is installed on the exposed surface of the second component B.

[0040] Specifically, during the first concrete pour, the second component B is positioned at the formwork. The second steel edge 2 can be fixed to the reinforcing steel frame by welding points. The exposed second rubber strip 4 of the second component has a significantly reduced volume compared to the traditional integral type, thus reducing the difficulty of protection.

[0041] Next, please refer to Figure 1 In step S2, before pouring the concrete structure on the other side of the expansion joint (i.e., before the second concrete pour), the protective assembly is removed, and the first component A and the second component B are connected by a keyway (equivalent to assembling the first component and the second component into a single unit); wherein, the connection of the first component A and the second component B by the keyway includes:

[0042] Align the limiting keys 5 of the first component A with the limiting slots 6 of the second component B one by one, and insert the limiting keys 5 into the corresponding limiting slots 6, so that the two keyways are connected.

[0043] Preferably, before connecting the first component A and the second component B via keyway mating, the method further includes:

[0044] Rubber sealant is pre-applied to the keyway connection surface between the first component A and the second component B to ensure the sealing performance of the waterstop and prevent water seepage in the area where the two components are mated.

[0045] Next, please refer to Figure 4 Then, proceed with step S3 to pour the concrete structure on the other side of the expansion joint.

[0046] Therefore, it can be seen that when the embedded steel-edged rubber waterstop of the present invention is used in construction, it supports independent installation in stages, so that the waterstop on the same side of the expansion joint and the concrete structure are implemented at the same time, avoiding large-volume and long-term exposure of the waterstop and reducing the risk of damage.

[0047] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0048] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0049] The present invention has the following advantages:

[0050] 1) By designing the waterstop as a first and second component connected by keyways, the weight and volume of the pre-installed second component are about half that of the traditional waterstop, making it relatively easier to protect.

[0051] 2) When pouring concrete on one side, protective components are installed to protect the exposed second part, thereby preventing the exposed second part from being damaged by welding slag, mechanical scratches or burns during cross-operations, which would reduce the water-stopping performance and significantly improve the construction quality and reliability of the waterstop.

[0052] 3) The keyway connection between the limiting key of the first component and the limiting groove of the second component is realized by interlocking, which makes the on-site positioning operation easier, avoids improper operation that leads to incomplete fitting, improves the construction quality of the embedded steel edge rubber waterstop, and ensures the overall waterproof continuity.

[0053] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A type of embedded steel-edged rubber waterstop, characterized in that, include: A first component (A), a second component (B), and a protective assembly (C), wherein the first component (A) and the second component (B) are connected by a keyway, and the protective assembly is detachably disposed on the surface of the exposed portion after the second component (B) is installed.

2. The embedded steel-edged rubber waterstop as described in claim 1, characterized in that, The first component (A) includes: a first steel edge (1), a first rubber strip (3) and a plurality of limiting keys (5). The first steel edge (1) is disposed on a first side of the first rubber strip (3) and extends along the length direction of the first rubber strip (3). The plurality of limiting keys (5) are disposed at predetermined intervals on a second side of the first rubber strip (3) opposite to the first side.

3. The embedded steel-edged rubber waterstop as described in claim 2, characterized in that, The second component (B) includes: a second steel edge (2), a second rubber strip (4) and a limiting groove (6). The second steel edge (2) is disposed on the first side of the second rubber strip (4) and extends along the length direction of the second rubber strip (4). A plurality of limiting grooves (6) are opened at the predetermined intervals inside the second side of the second rubber strip (4) opposite to the first side. The limiting grooves (6) are adapted to the limiting key (5), and the position of the limiting grooves (6) corresponds to the position of the limiting key (5) of the first component (A).

4. The embedded steel-edged rubber waterstop as described in claim 3, characterized in that, The protective component (C) includes a protective cover plate (7) and a cover plate fastener (8). The cover plate fastener (8) is inserted through the protective cover plate (7). One end of the cover plate fastener (8) has a fastening part that engages with the limiting groove (6). When the fastening part engages with the limiting groove (6), the protective cover plate (7) is pressed onto the second rubber strip (4).

5. The embedded steel-edged rubber waterstop as described in claim 4, characterized in that, The protective cover (7) is an aluminum protective cover.

6. The embedded steel-edged rubber waterstop as described in claim 4, characterized in that, The protective cover (7) has a U-shaped cross-section.

7. The embedded steel-edged rubber waterstop as described in claim 2 or 3, characterized in that, The predetermined interval is 1m.

8. A construction method for a centrally embedded steel-edged rubber waterstop as described in any one of claims 1 to 7, characterized in that, include: When pouring the concrete structure on one side of the expansion joint, the second component (B) is pre-installed, and the protective assembly is installed on the exposed surface of the second component (B); Before pouring the concrete structure on the other side of the expansion joint, the protective assembly is removed, and the first component (A) and the second component (B) are connected by keyway fitting. The concrete structure on the other side of the expansion joint is poured.

9. The construction method of the embedded steel-edged rubber waterstop as described in claim 8, characterized in that, The keyway connection between the first component (A) and the second component (B) includes: Align the limiting keys (5) of the first component (A) with the limiting slots (6) of the second component (B) one by one, and insert the limiting keys (5) into the corresponding limiting slots (6) so that the two keyways are connected.

10. The construction method of the embedded steel-edged rubber waterstop as described in claim 8, characterized in that, Before connecting the first component (A) and the second component (B) via keyway mating, the method further includes: Rubber sealant is pre-applied to the keyway mating contact surfaces of the first component (A) and the second component (B).

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