Construction joint waterproof sealing device and waterproof sealing construction method

Abstract

The invention belongs to the technical field of building construction, and particularly relates to a construction joint waterproof sealing device and a waterproof sealing construction method. The construction joint waterproof sealing device comprises an elastic body and a positioning assembly, the positioning assembly comprises an anchoring plate, a gasket and a base, a U-shaped groove is formed in the base, and the gasket and the anchoring plate are sequentially embedded in the U-shaped groove; the first fastener sequentially penetrates through the anchoring plate, the gasket and the base so that the positioning assembly can be fixedly locked to the base body. The elastic body is embedded in the U-shaped groove and connected to the anchoring plate through a second fastener. Therefore, the problem of water leakage can be solved through the optimization design of the structure and the material of the construction joint in the early stage, the cost of later operation leakage stoppage is reduced, and potential safety hazards are completely eradicated.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and particularly relates to a construction joint waterproof sealing device and a waterproof sealing construction method. Background Art

[0002] According to statistical analysis, the forms of joint waterproofing currently in use have not seen further innovation for decades after introducing foreign technologies and still follow traditional design measures. However, the on-site construction conditions are complex and there are many problems. Therefore, it is extremely urgent to provide a stable and reliable joint waterproof design.

[0003] Currently, the status quo of the main body and auxiliary construction joints: The current waterproof structure is a water-swelling waterstop strip + grouting pipe + water collection box drainage form. The application status of the construction joint is that leakage is common in the main body and auxiliary structures of the current subway project, and the probability of construction joint leakage is 86%. By analyzing the reasons for the leakage of the main body and auxiliary construction joints:

[0004] 1. During the pouring process of the main body, it is impossible to pre-embed the waterstop belt, resulting in no active waterproof measures for the joints in this part; the pre-installed water-swelling waterstop strip undergoes an expansion reaction during the pouring of concrete, and there are many uneven gaps on the base surface during the initial chiseling of the concrete, so it cannot fit well with the concrete, which may lead to leakage in the later stage.

[0005] 2. Due to uneven settlement and tensile reasons, after the concrete is poured, settlement and tensile deformation will occur at the construction joint with the settlement and temperature changes of the structure. Cracks will reappear after grouting and plugging in the later stage, resulting in repeated leakage.

[0006] Leakage has become a common phenomenon in underground projects. In particular, the waterproofing of the main body and auxiliary structures of subway projects has always been a difficult problem to solve due to the inability to reserve the waterstop belt. After leakage, it not only poses a hidden danger to the structural safety and quality, but also has a negative impact on the public. At the same time, it will cause huge economic losses to the later operation. Therefore, the research on the joint waterproofing of the main body and auxiliary structures of subway projects is of great importance.

[0007] Therefore, it is still necessary to optimize and improve the current waterproof structure so as to solve the leakage problem through the optimized design of the structure and materials of the construction joint in the early stage, reduce the cost of later operation for plugging leaks, and eliminate potential safety hazards. Summary of the Invention

[0008] The purpose of the present invention is to provide a construction joint waterproof sealing device and a waterproof sealing construction method, so as to solve the leakage problem through the optimized design of the structure and materials of the construction joint in the early stage, reduce the cost of later operation for plugging leaks, and eliminate potential safety hazards.

[0009] To achieve the above object, the present invention provides a construction joint waterproof sealing device, which includes an elastomer and a positioning component. Among them, the positioning component includes an anchor plate, a gasket and a base. A U-shaped groove is formed in the base, and the gasket and the anchor plate are sequentially embedded in the U-shaped groove; a first fastener sequentially passes through the anchor plate, the gasket and the base to be able to fix and lock the positioning component to the substrate; the elastomer is embedded in the U-shaped groove and is connected to the anchor plate through a second fastener.

[0010] In a possible design, the elastomer includes an integrally formed pressing section and an extending section. The pressing section is embedded in the U-shaped groove and is connected to the anchor plate; the extending section protrudes from the U-shaped groove, and there is an included angle between the extending section and the pressing section.

[0011] In a possible design, the included angle α between the extending section and the pressing section is 75° to 105°.

[0012] In a possible design, the construction joint waterproof sealing device further includes a pressing plate, which is formed in a shape adapted to the included angle between the extending section and the pressing section. The pressing plate respectively abuts against the extending section and the pressing section, and the second fastener passes through the pressing plate, the pressing section and the anchor plate to lock it to the base.

[0013] In a possible design, the elastomer includes a pressing section embedded in the U-shaped groove. Buffer holes are provided on the pressing section. The axial direction of the buffer holes is parallel to the length direction of the base, and the buffer holes extend along the length direction of the base and penetrate the pressing section.

[0014] In a possible design, multiple groups of the buffer holes are provided and are evenly spaced along the width direction of the base.

[0015] In a possible design, the shape of the buffer holes is circular.

[0016] In a possible design, the elastomer is configured as a polyurethane elastomer.

[0017] In a possible design, the preparation materials of the base and the anchor plate are metal alloys; anti-corrosion layers are plated on both the base and the anchor plate.

[0018] A waterproof sealing construction method uses the above-mentioned construction joint waterproof sealing device; the waterproof sealing construction method includes the following steps:

[0019] An installation groove is opened on the substrate according to the set dimensions;

[0020] The positioning component is installed in the installation groove through the first fastener;

[0021] Fill the gap between the positioning component and the installation groove with a coagulant;

[0022] After the coagulant solidifies and forms, assemble the elastomer onto the positioning component;

[0023] Attach a pressure plate to the elastomer, and fasten the pressure plate and the elastomer to the positioning component through a second fastener.

[0024] Through the above technical solution, the construction joint waterproof sealing device can rely on the existing structure, thereby providing excellent waterproof performance, and is particularly suitable for hard substrates such as concrete structures. Its core components include an elastomer and a positioning component, where the positioning component consists of an anchor plate, a gasket, and a base. Through material selection and optimized structural design, the device can be effectively embedded into the existing main structure to achieve a long-term and reliable waterproof effect. The construction joint waterproof sealing device is particularly suitable for application in hard substrates such as concrete structures, such as infrastructure construction projects like tunnels, bridges, and dams. Through precise design and high-quality material selection, it can effectively prevent water penetration, protect the internal structure from erosion, and thus extend the service life of the building. The entire installation process is simple and clear, without the need for complex tools or technologies, and on-site operators can complete high-quality installations after a short training. The device can maintain stable waterproof performance in various harsh environments, providing lasting safety guarantees for engineering projects. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 is a schematic structural diagram of the construction joint waterproof sealing device provided by the present invention in one embodiment;

[0027] Figure 2 is a schematic structural diagram of the construction joint waterproof sealing device provided by the present invention in one embodiment, where the elastomer is removed;

[0028] Figure 3 is Figure 2 an enlarged structural diagram of part A in

[0029] Figure 4 is a schematic structural diagram of the construction joint waterproof sealing device provided by the present invention in another embodiment, where buffer holes are provided on the elastomer.

[0030] In the above-mentioned drawings: 1 - elastomer, 10 - buffer hole, 11 - pressing section, 12 - extension section, 2 - positioning component, 21 - anchoring plate, 22 - gasket, 23 - base, 3 - first fastener, 4 - second fastener, 5 - pressing plate, 6 - matrix. Detailed implementation manners

[0031] The present invention will be further described below in conjunction with the drawings and specific embodiments. It should be noted here that although the description of these embodiments is used to help understand the present invention, it does not constitute a limitation to the present invention. The specific structural and functional details disclosed herein are only used to describe the embodiments of the examples of the present invention. However, the present invention can be embodied in many alternative forms and should not be construed as limited to the embodiments described herein.

[0032] According to the specific implementation manner of the present invention, a construction joint waterproof sealing device is provided, wherein a lock ring adapted to a hook is provided on the rear compartment of a vehicle. Figures 1 to 3 One of the specific embodiments is shown.

[0033] Refer to Figures 1 to 3 As shown, the construction joint waterproof sealing device includes an elastomer 1 and a positioning component 2. Among them, the positioning component 2 includes an anchoring plate 21, a gasket 22 and a base 23. A U-shaped groove is formed in the base 23, and the gasket 22 and the anchoring plate 21 are sequentially embedded in the U-shaped groove; the first fastener 3 sequentially passes through the anchoring plate 21, the gasket 22 and the base 23 to be able to fixedly lock the positioning component 2 to the matrix 6; the elastomer 1 is embedded in the U-shaped groove and is connected to the anchoring plate 21 through the second fastener 4.

[0034] The base 23 is the support structure of the entire device, and a U-shaped groove is formed inside for accommodating the anchoring plate 21, the gasket 22 and the elastomer 1. As a key component connecting the base 23 and the elastomer 1, the anchoring plate 21 provides a stable foundation and is made of high-strength metal material to ensure good mechanical properties even in harsh environments. The gasket 22 is located between the anchoring plate 21 and the base 23 and plays a role of buffering and adjustment.

[0035] Determine a suitable installation position (installation groove) on the concrete structure matrix 6, and perform necessary cleaning and leveling treatments to ensure that the installation surface is clean and dust-free and relatively flat. The gasket 22 and the anchor plate 21 are sequentially placed into the U-shaped groove of the base 23 to ensure that all components are closely fitted and in the correct position. Use the first fastener 3 (such as an expansion bolt) to sequentially pass through the anchor plate 21, the gasket 22, and the base 23 to firmly fix the positioning assembly 2 on the matrix 6. Embed the pre-prepared elastomer 1 into the U-shaped groove of the base 23 so that it completely covers the anchor plate 21 and the gasket 22. Use the second fastener 4 (such as a screw) to fix the elastomer 1 on the anchor plate 21 to ensure that it will not shift or fall off during subsequent operations. After the installation is completed, carefully check whether all connection parts are tightened and whether the elastomer 1 is damaged or wrinkled to ensure that the device is in the best working condition.

[0036] Through the above technical solution, the construction joint waterproof sealing device can rely on the existing structure and thus provide excellent waterproof performance, especially suitable for hard matrices 6 such as concrete structures. Its core components include an elastomer 1 and a positioning assembly 2, where the positioning assembly 2 consists of an anchor plate 21, a gasket 22, and a base 23. Through material selection and optimized structural design, the device can be effectively embedded into the existing main structure to achieve a long-term and reliable waterproof effect. The construction joint waterproof sealing device is particularly suitable for application in hard matrices 6 such as concrete structures, such as in infrastructure construction projects like tunnels, bridges, and dams. Moreover, the overall structure of the construction joint waterproof sealing device is simple, easy to install and maintain, and can effectively reduce construction costs. Through precise design and high-quality material selection, it can effectively prevent water penetration, protect the internal structure from erosion, and thus extend the service life of the building. The entire installation process is simple and clear, does not require complex tools or techniques, and on-site operators can complete high-quality installation after a short training. The device can maintain stable waterproof performance in various harsh environments, providing lasting safety protection for engineering projects.

[0037] Specifically, the gasket 22 can be made of rubber or composite materials, having certain elasticity and corrosion resistance, capable of absorbing the stress brought by the uneven surface during installation, and at the same time preventing the fastener from directly contacting the matrix 6 to reduce wear.

[0038] The base 23 is usually made of a strong and durable metal material to ensure that it can withstand external pressure without deformation.

[0039] In an embodiment provided by the present disclosure, the elastomer 1 includes an integrally formed pressing section 11 and an extending section 12. The pressing section 11 is embedded in the U-shaped groove and connected to the anchoring plate 21. This embedded design effectively prevents the intrusion of moisture and other impurities, enhancing the sealing performance of the overall device. The pressing section 11 is firmly connected to the anchoring plate 21 by a second fastener 4 (such as a screw or a buckle), ensuring that it will not shift or fall off during long-term use. This connection method not only improves the stability of the device but also facilitates subsequent maintenance and replacement.

[0040] The extending section 12 protrudes from the U-shaped groove, forming a protruding part, which increases the contact area with the surrounding structure. This design enables the elastomer 1 to more effectively cover the possible water seepage paths, further improving the waterproof performance. There is an included angle between the extending section 12 and the pressing section 11, which allows the elastomer 1 to achieve better fitting on surfaces with different angles and shapes, adapting to various complex installation environments. At the same time, the included angle design helps to evenly distribute the pressure across the entire extending section 12, enabling the elastomer 1 to fit more closely to the surrounding structure, reducing gaps and potential leakage points.

[0041] The pressing section 11 and the extending section 12 are integrally formed. This not only avoids the possible joint and connection problems in the traditional segmented manufacturing process, reduces the complexity and cost in the production process, but also makes the connection between various parts of the elastomer 1 more firm, reducing the risk of sealing failure caused by component loosening or falling off.

[0042] Specifically, the included angle α between the extending section 12 and the pressing section 11 is 75° - 105°. The included angle design helps to evenly distribute the pressure across the entire extending section 12, enabling the elastomer 1 to fit more closely to the surrounding structure, reducing gaps and potential leakage points. Specifically: A 75° included angle is suitable for relatively narrow or curved surfaces, providing better flexibility and adaptability to ensure that the elastomer 1 can fit tightly on complex shapes. A 90° included angle is the most commonly used intermediate value, suitable for most standard installation environments, capable of evenly distributing pressure and providing stable sealing performance. A 105° included angle is suitable for wider or flatter surfaces, increasing the effective contact area of the extending section 12 and further enhancing the sealing effect. Thus, through the design of the included angle, not only the functionality is improved, but also the aesthetic appearance of the overall device is increased, making it more harmonious and unified visually.

[0043] In an embodiment provided by the present disclosure, the construction joint waterproof sealing device further includes a pressing plate 5, the pressing plate 5 is formed in a shape adapted to the included angle between the extension section and the pressing section 11, the pressing plate 5 is respectively abutted against the extension section and the pressing section 11, and the second fastener 4 passes through the pressing plate 5, the pressing section 11 and the anchor plate 21 to lock it to the base 23.

[0044] The design of the pressing plate 5 makes the connection between the various parts of the elastomer 1 tighter, reducing the risk of sealing failure caused by component loosening or detachment. The additional pressure provided by the pressing plate 5 ensures that the elastomer 1 can still maintain good sealing performance when stressed. In addition, the adapted shape between the pressing plate 5 and the extension section and the pressing section 11 helps to evenly distribute the pressure over the entire elastomer 1, avoiding local stress concentration and extending its service life.

[0045] In an embodiment provided by the present disclosure, the elastomer 1 includes a pressing section 11 embedded in the U-shaped groove, and buffer holes 10 are provided on the pressing section 11. The axial direction of the buffer holes 10 is parallel to the length direction of the base 23, and the buffer holes 10 extend along the length direction of the base 23 and penetrate through the pressing section 11.

[0046] The axial direction of the buffer holes 10 is parallel to the length direction of the base 23, ensuring that the pressure can be evenly distributed when stressed and reducing local stress concentration. The buffer holes 10 extend along the length direction of the base 23 and penetrate through the pressing section 11, forming a continuous channel. This design helps to relieve the influence of external pressure on the elastomer 1. Especially in complex geological conditions, it can effectively absorb vibration and impact, extending the service life.

[0047] Thus, based on the design of the buffer holes 10, the elastomer 1 can absorb energy through the flow of air or liquid in the holes when subjected to external pressure or impact, reducing the pressure transmitted to the elastomer 1 itself. In this way, the external pressure can be evenly distributed on the pressing section 11, avoiding local stress concentration, thereby extending the service life of the elastomer 1. In addition, the buffer holes 10 can also provide a certain amount of expansion space during temperature changes, ensuring that the elastomer 1 will not be damaged due to thermal expansion and contraction.

[0048] The construction joint waterproof sealing device is applicable to hard substrates 6 such as concrete structures, such as in infrastructure construction of tunnels, bridges, dams, etc. In different installation environments, the buffer holes 10 can help the elastomer 1 better adapt to the situation of uneven surfaces or minor deformations. For example, on a hard substrate 6 such as a concrete structure, the buffer holes 10 can absorb the fine unevenness on the surface of the substrate 6, ensuring that the elastomer 1 always fits tightly and improving the sealing effect.

[0049] In an embodiment provided by the present disclosure, the buffer holes 10 are arranged in multiple groups and are evenly spaced along the width direction of the base 23. Such an arrangement can ensure that the entire pressing section 11 can be evenly supported when stressed, avoiding deformation or damage caused by uneven local stress. The elastomer 1 can absorb energy through the flow of air or liquid in multiple holes when subjected to external pressure or impact, reducing the pressure transmitted to the elastomer 1 itself, thereby improving durability and protecting the surrounding structure from damage to a certain extent. The buffer holes 10 evenly spaced along the width direction of the base 23 help to evenly distribute the external pressure on the pressing section 11, avoiding local stress concentration, and thus extending the service life of the elastomer 1. In addition, multiple groups of buffer holes 10 can also provide more expansion and contraction space during temperature changes, ensuring that the elastomer 1 will not be damaged due to thermal expansion and contraction.

[0050] In an embodiment provided by the present disclosure, the shape of the buffer holes 10 is circular. The design of circular holes enables each buffer hole 10 to provide a uniform pressure dispersion effect, avoiding stress concentration and improving the durability of the polyurethane elastomer. At the same time, due to the relatively smooth edges of the circular holes, the risk of material tearing when stressed is reduced, extending the service life of the polyurethane elastomer. When an external pressure acts on the polyurethane elastomer, the circular holes can disperse the pressure to a wider area through the space inside, avoiding local stress concentration. When the elastomer 1 is subjected to vibration or impact, it absorbs energy through the flow of air or liquid in the holes, reducing the pressure transmitted to the main body of the elastomer.

[0051] The spacing of the circular holes along the width direction of the base 23 should be adjusted according to specific installation conditions and expected stress conditions to ensure that each circular hole can effectively play its role while avoiding structural weakening caused by being too dense.

[0052] Specifically, the elastomer 1 is configured as a polyurethane elastomer. Based on the characteristics of the rubber material, the polyurethane elastomer has excellent elasticity and recovery ability, and can quickly return to its original state after being stressed, ensuring a stable sealing effect during long-term use. At the same time, based on the good weather resistance of the rubber material, it can maintain stable physical properties under various climate conditions and is suitable for outdoor or harsh environments.

[0053] Specifically, the preparation materials of the base 23 and the anchor plate 21 are metal alloys, so that the base 23 and the anchor plate 21 have high strength and excellent mechanical properties, can withstand large external pressures and impacts, and ensure the long-term stability of the device. Anti-corrosion layers are plated on both the base 23 and the anchor plate 21. Usually, materials such as zinc plating, chromium plating, and nickel plating are selected to plate the coatings on the base 23 and the anchor plate 21. These materials have good corrosion resistance and oxidation resistance and can provide effective protection when exposed to a humid or corrosive environment for a long time.

[0054] It should be noted that in the present disclosure, the pressing plate 5 is also made of a metal material, and the pressing plate 5 is galvanized to improve its corrosion resistance, prevent surface oxidation and corrosion, increase its surface hardness, enhance wear resistance, and further extend its service life.

[0055] According to a second aspect of the present disclosure, a waterproof sealing construction method is provided.

[0056] In the embodiment provided by the present disclosure, the waterproof sealing construction method uses the construction joint waterproof sealing device as described in the first aspect; the waterproof sealing construction method includes the following steps. First, ensure that all components (polyurethane elastomer, base 23, anchoring plate 21, pressing plate 5, fasteners, etc.) and tools (drilling equipment, fastening tools, setting agents, etc.) are ready. Clean and level the surface of the concrete structure or other hard matrix 6 where the construction joint waterproof sealing device needs to be installed to ensure that the installation surface is clean and dust-free and relatively flat.

[0057] According to the design requirements and actual needs, determine the specific dimensions of the installation groove to ensure that all components can fit tightly during the subsequent installation process. Open the installation groove on the matrix 6 according to the set dimensions. When grooving, use appropriate tools (such as an electric drill or a cutting machine) to accurately open the installation groove on the matrix 6 according to the set dimensions. The depth and width of the installation groove should match the base 23 and the anchoring plate 21 to ensure that it can be firmly embedded.

[0058] Install the positioning component 2 into the installation groove through the first fastener 3. Specifically, embed the gasket 22 and the anchoring plate 21 into the U-shaped groove of the base 23 in sequence, and pass the first fastener 3 (such as a bolt) through the anchoring plate 21, the gasket 22 and the base 23 in sequence to fix and lock the positioning component 2 to the installation groove on the matrix 6. Ensure that all components fit tightly to avoid loosening. Use the first fastener 3 to firmly install the positioning component 2 on the matrix 6 to ensure that its position is accurate. At this time, preliminary adjustment can be carried out to ensure that the positioning component 2 is completely attached to the surface of the matrix 6.

[0059] Fill the gap between the positioning component 2 and the installation groove with a setting agent. For example, select a suitable setting agent (such as epoxy resin, cement mortar, etc.) to ensure that it has good adhesion and durability. Uniformly fill the setting agent into the gap between the positioning component 2 and the installation groove to ensure that every corner is fully filled. The role of the setting agent is to further enhance the bonding force between the positioning component 2 and the matrix 6 and prevent water penetration. Use a tool to smooth the excess setting agent to ensure that its surface is smooth and bubble-free to improve the sealing effect.

[0060] After the setting agent solidifies and forms, assemble the elastomer 1 onto the positioning component 2 to ensure that the polyurethane elastomer is tightly embedded in the U-shaped groove of the base 23 and is correctly connected to the anchoring plate 21.

[0061] Attach a pressure plate 5 to the elastomer 1, and fasten the pressure plate 5 and the elastomer 1 to the positioning assembly 2 through a second fastener 4. Place the pressure plate 5 on the polyurethane elastomer, ensure that its shape is adapted to the angle between the extension section and the pressing section 11, and respectively abut against the extension section and the pressing section 11. Use the second fastener 4 (such as a screw or a buckle) to pass through the pressure plate 5, the pressing section 11 and the anchor plate 21, and firmly fasten the pressure plate 5 and the polyurethane elastomer to the positioning assembly 2. Ensure that the fastener applies pressure evenly so that the entire device fits tightly without any gaps.

[0062] After the operation is completed, it is necessary to check whether all connection parts are fastened to ensure that there is no looseness or missing installation. Conduct a sealing test on the completed construction joint waterproof sealing device to confirm that there is no leakage under pressure. Clean the construction site, remove excess materials and tools, and ensure that the site is clean and orderly.

[0063] Through the above technical solutions, by setting the dimensions and precisely grooving, it is ensured that the positioning assembly 2 and the elastomer 1 can closely fit the base body 6, providing a reliable sealing effect. Adopting a double fixing method of the first fastener 3 and the coagulant enhances the bonding force between the positioning assembly 2 and the base body 6, ensuring long-term stability. Using the pressure plate 5 and firmly fixing the elastomer 1 through the second fastener 4 ensures that the entire device will not shift or fall off when stressed, improving the sealing reliability. This waterproof sealing construction method adopts the construction joint waterproof sealing device as described in the first aspect, and ensures its efficient and reliable installation through a series of detailed steps, which not only simplifies the construction process, but also significantly improves the overall performance of the construction joint waterproof sealing device, especially in applications on hard base bodies 6 such as concrete structures. Through the carefully designed multi-group round hole buffer structure, high-performance rubber material, and the selection of the metal alloy base 23 and the anchor plate 21, this device can better adapt to complex and changeable installation environments and provide a more reliable sealing effect.

[0064] In one embodiment, the operator first uses a level to mark the line, and then cuts a groove at the position where the construction joint waterproof sealing device needs to be installed. The groove size is (4×8) cm, and this groove is the installation groove.

[0065] Install the gasket 22 and the base 23 of the U-shaped groove into the previously cut installation groove through the anchoring construction process, then level it, and fix it with expansion bolts. Then use high-strength quick-setting ash to fill and compact the gap between the installation groove and the U-shaped groove, and wait for the quick-setting ash to set.

[0066] After the initial setting strength of the ash reaches the required level, place the polyurethane high-elastic body into the groove, then align it with the tapped holes reserved on the base 23 and drill holes. Use the L-shaped pressing plate 5 for positioning and then drill holes. After drilling, install the screws (the second fastener 4), but do not tighten them for the first anchoring. After all the entire loop is anchored, start anchoring and pressing from one end of the elastomer 1. Press the material onto the same horizontal plane as the mold during this anchoring to ensure that the material is firmly pressed. Then, check the entire loop for any loose areas.

[0067] After forming a complete loop, cut off the excess material, bond the newly cut surface with professional polyurethane adhesive, and finally wrap butyl tape around the bonded area. Finally, stick butyl tape on the upper and lower surfaces of the entire loop of material and press it firmly.

[0068] Finally, it should be noted that the present invention is not limited to the above-mentioned optional embodiments, and anyone can obtain other various forms of products under the inspiration of the present invention. The above specific embodiments should not be construed as limiting the protection scope of the present invention. The protection scope of the present invention should be defined by the claims, and the description can be used to interpret the claims.

Claims

1. A construction joint waterproof sealing device, characterized in that: It includes an elastomer and a positioning assembly, wherein the positioning assembly includes an anchor plate, a gasket and a base, a U-shaped groove is formed in the base, and the gasket and the anchor plate are embedded in the U-shaped groove in sequence; a first fastener passes through the anchor plate, the gasket and the base in sequence to be able to fix and lock the positioning assembly to the base; the elastomer is embedded in the U-shaped groove and connected to the anchor plate through a second fastener.

2. The construction joint waterproof sealing device according to claim 1, characterized in that: The elastic body includes an integrally formed pressing section and an extending section, wherein the pressing section is embedded in the U-shaped groove and connected to the anchor plate; the extending section protrudes from the U-shaped groove, and an angle is formed between the extending section and the pressing section.

3. The construction joint waterproof sealing device according to claim 2, characterized in that: The included angle α between the extension section and the pressing section is 75° to 105°.

4. The construction joint waterproof sealing device according to claim 2, characterized in that: The construction joint waterproof sealing device also includes a pressure plate, which is formed into a shape that is compatible with the angle between the extension section and the pressure section. The pressure plate is respectively pressed against the extension section and the pressure section. The second fastener passes through the pressure plate, the pressure section and the anchor plate to lock it on the base.

5. The construction joint waterproof sealing device according to claim 1, characterized in that: The elastic body includes a pressing section embedded in the U-shaped groove, the pressing section is provided with a buffer hole, the axial direction of the buffer hole is parallel to the length direction of the base, and the buffer hole extends along the length direction of the base and penetrates the pressing section.

6. The construction joint waterproof sealing device according to claim 5, characterized in that: The buffer holes are arranged in a plurality of groups and are evenly spaced along the width direction of the base.

7. The construction joint waterproof sealing device according to claim 5, characterized in that: The buffer hole is in the shape of a round hole.

8. The construction joint waterproof sealing device according to any one of claims 1 to 7, characterized in that: The elastomer is configured as a polyurethane elastomer.

9. The construction joint waterproof sealing device according to any one of claims 1 to 7, characterized in that: The base and the anchor plate are made of metal alloy; both the base and the anchor plate are plated with an anti-corrosion layer.

10. A waterproof sealing construction method, characterized in that: The construction joint waterproof sealing device according to any one of claims 1 to 9 is used; the waterproof sealing construction method comprises the following steps: Opening a mounting groove on the base body according to the set size; Installing the positioning assembly into the mounting groove by means of a first fastener; Use a coagulant to fill the gap between the positioning component and the mounting groove; After the coagulant is solidified and formed, the elastic body is assembled onto the positioning component; A pressing plate is attached to the elastic body, and the pressing plate and the elastic body are fastened to the positioning assembly through a second fastener.

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