Simple connecting structure of rubber waterstop

Abstract

The utility model discloses a simple rubber waterstop connecting structure which comprises a connecting structure body used for being connected to the combination portion of a first waterstop plate and a second waterstop plate, and the connecting structure body comprises a supporting table arranged at the connecting end of the first waterstop plate in an extending mode; the lapping plate is arranged at the connecting end of the second water stop plate in an extending manner, is connected to the upper part of the supporting table and is used for connecting the first water stop plate and the second water stop plate into a whole; the connecting piece is connected to the connecting end of the first water stop plate and the connecting end of the second water stop plate and used for stably connecting the first water stop plate and the second water stop plate together. The rubber waterstop is simple in structure and novel and reasonable in design, the two adjacent rubber waterstops are tightly connected, the problems that after the rubber waterstops are installed, the joint portion possibly falls off, sealing is not tight and the like can be effectively prevented, meanwhile, the connecting pieces can ensure that the joint portion is tightly attached to the surrounding area, a good sealing effect is achieved, and the service life of the rubber waterstops is prolonged. And moisture permeation is effectively prevented.

Description

Technical Field

[0001] This utility model relates to a connection structure, specifically a simple connection structure for rubber waterstops. It is mainly applicable to the connection construction of rubber waterstop joints in new construction and renovation projects, and is also applicable to the repair of rubber waterstops damaged due to construction errors or long-term use. It belongs to the field of auxiliary technology of building construction supplies. Background Technology

[0002] As is well known, rubber waterstops are widely used in many engineering fields, such as concrete deformation joints and expansion joints, due to their excellent waterproof performance and ease of construction. This material, with its unique performance advantages, meets the stringent waterproofing and sealing requirements of various projects, thereby ensuring the safety and stability of the engineering structure. However, the connection quality of the waterstop joints is a key factor in controlling the overall quality of the project.

[0003] Currently, due to factors such as construction conditions and material properties, it is often difficult to ensure a complete fit between the traditional rubber waterstop and the joint during installation, resulting in gaps between the waterstop and the joint, which affects the sealing performance of the waterstop. In addition, the installation and dismantling of traditional rubber waterstops require a lot of manpower and time, and the installation accuracy is difficult to guarantee, which increases the construction difficulty and cost of the project. Moreover, the construction process is complex, costly and inefficient, and quality control is difficult. The finished product quality is poor, requiring multiple rework or repair operations.

[0004] While existing technologies may employ overlapping connections between adjacent rubber waterstops or fix them together using adhesives or metal bolts, these traditional methods suffer from several drawbacks. Insufficient sealing and the possibility of gaps between the waterstops due to inadequate joint tightness in overlapping and bolted connections can compromise their waterproofing performance. This is particularly problematic under high water pressure or vibration conditions, leading to potential water leakage; in short, these methods are often inconvenient.

[0005] Therefore, the key to solving the above-mentioned technical problems lies in developing a simple connection structure for rubber waterstops that has good sealing performance and high operational reliability. Utility Model Content

[0006] In view of the many defects and deficiencies existing in the above-mentioned background technology, this utility model has made improvements and innovations, aiming to provide a simple structure, novel and reasonable design, easy operation, and connection structure design that enables tight connection between two adjacent rubber waterstops, effectively preventing problems such as detachment of joints and poor sealing that may occur after the installation of rubber waterstops. It has obvious construction effect, effectively shortens the construction period, increases construction efficiency, and ensures construction quality and post-construction safety.

[0007] Another utility model objective is to achieve a good sealing effect. The connection of the connecting piece can ensure that the joint part fits tightly with the surrounding area, forming a good sealing effect and effectively preventing water penetration. At the same time, after the connection is made by the connecting piece, the water pressure resistance of the two adjacent rubber waterstop joints is enhanced, and it can withstand greater water pressure. Especially in water conservancy projects and underground projects, it can effectively prevent water leakage.

[0008] To solve the above problems and achieve the above-mentioned utility model objectives, this utility model provides a simple rubber waterstop connection structure through the following design structure and the following technical solution:

[0009] A simple connection structure for a rubber waterstop includes a connection structure body for connecting to the joint of a first waterstop plate and a second waterstop plate, the connection structure body comprising:

[0010] A support platform that extends to the connection end of the first waterstop plate;

[0011] An lap plate is extended at the connection end of the second waterstop plate. The lap plate is connected above the support platform to connect the first waterstop plate and the second waterstop plate into one piece, and to make both ends of the first waterstop plate and the second waterstop plate lie on the same plane.

[0012] It also includes: connecting pieces, which are respectively connected to the connecting ends of the first waterstop plate and the second waterstop plate, for securing the first waterstop plate and the second waterstop plate together.

[0013] Preferably, the support platform and the first waterstop plate are fixedly connected or integrally formed.

[0014] Preferably, the overlapping plate and the second waterstop plate are fixedly connected or integrally formed.

[0015] Preferably, a support groove is provided on the support platform, and the support groove extends from one end edge along the length direction of the support platform to the other end edge of the support platform.

[0016] Preferably, an overlap groove is provided on the overlap plate, and the overlap groove extends from one end edge along the length direction of the overlap plate to the other end edge of the overlap plate; the overlap groove and the support groove are fitted and snapped together.

[0017] Preferably, the connecting piece is a corrugated plate-shaped component.

[0018] Preferably, the connecting piece is a cuboid plate-shaped component;

[0019] Preferably, the connection surfaces of the connecting piece with the first waterstop plate and the second waterstop plate are bonded together.

[0020] Preferably, the adhesive connection is achieved by bonding the connecting piece to the connecting surfaces of the first waterstop plate and the second waterstop plate into a whole using an adhesive.

[0021] Preferably, the connecting plate is joined to the connecting surfaces of the first waterstop plate and the second waterstop plate by heat fusion.

[0022] The beneficial effects of this utility model compared with the prior art are:

[0023] 1. This utility model has a simple structure, novel and reasonable design, and is easy to operate. The design of the connecting structure body enables the treatment and connection of two adjacent rubber waterstops to be tight, which can effectively prevent problems such as the joint parts falling off and poor sealing that may occur after the rubber waterstop is installed. The construction effect is obvious and the construction period is effectively shortened. While increasing the construction efficiency, it can also ensure the construction quality and safety after construction.

[0024] 2. This utility model has a good sealing effect. The connecting piece can ensure that the joint part fits tightly with the surrounding area, forming a good sealing effect and effectively preventing moisture penetration.

[0025] 3. This utility model is easy to construct. The installation of the connecting piece is relatively simple. It only requires heating or direct bonding to connect the two rubber waterstops at the joint. No complicated tools or processes are required, and the construction process is relatively convenient.

[0026] 4. This utility model has strong water pressure resistance. After being connected by connecting pieces, the water pressure resistance of two adjacent rubber waterstop joints is enhanced, and it can withstand greater water pressure. Especially in water conservancy projects and underground projects, it can effectively prevent water leakage.

[0027] 5. This utility model connects adjacent rubber waterstops by providing an overlapping plate and a support platform at the joint, i.e., the joint part. This ensures that the two adjacent rubber waterstops are connected more firmly and reliably during installation, resulting in a better sealing effect. Furthermore, the overlapping plate and the support platform work together to enhance the mechanical strength of the waterstop joint, avoid stress concentration at the joint, and reduce the risk of waterstop breakage.

[0028] 6. The overlapping plate and support platform provided in this utility model can, on the one hand, better maintain the stability and sealing effect of the waterstop, and prevent displacement or leakage at the joint due to water pressure or external force; on the other hand, it helps to ensure the accurate positioning of the end of the waterstop during installation, reducing problems such as loose joints or deformation caused by construction errors; and on the other hand, it helps to improve the water pressure resistance of the joint, especially in projects with high groundwater levels or high water pressure, which can effectively prevent water penetration.

[0029] 7. The joint of the waterstop of this utility model may be affected by temperature changes. The overlapping plate and the support platform can play a certain supporting and stabilizing role, prevent the waterstop from expanding and deforming due to temperature changes, and ensure the sealing of the joint. The support platform can fix the end of the waterstop and prevent the end of the waterstop from shifting under the action of water flow or external force, thereby ensuring the stability and long-term effectiveness of the entire waterstop system.

[0030] 8. This utility model can improve construction quality. On the one hand, the overlapping plate and support platform can help construction workers provide better support and alignment at the joint, making the waterstop joint more neat and uniform, thus improving construction quality. On the other hand, it increases durability. Due to the use of the overlapping plate and support platform, the joint is more robust and can withstand more external environmental pressure, such as high water pressure and external physical impact, thus extending the service life of the waterstop. Furthermore, it improves construction efficiency. The overlapping plate and support platform can simplify the joint treatment process, improve construction efficiency, and reduce the possibility of joint leakage, thus reducing the risk of rework.

[0031] 9. This utility model fully utilizes the inherent advantages of connecting plate materials, which have strong durability: connecting plate materials usually have good anti-aging, anti-ultraviolet and weather resistance, and can maintain stable performance in long-term use, thus extending the service life of the waterstop; including its excellent anti-corrosion performance, excellent sealing performance, wear resistance and wide adaptability, etc., thereby giving the connecting plate material the above-mentioned advantages in the process of connecting rubber waterstop joints.

[0032] 10. This utility model achieves a robust mechanical connection at the joint by setting up a support groove and an overlap groove for mutual interlocking, making the joint between the two rubber waterstops more stable. This design reduces loosening of the connection due to external pressure or deformation, increasing the overall strength and stability of the waterstop. It also prevents the rubber waterstop from being subjected to external forces during construction or use, thus avoiding displacement or deformation. The design of the support groove and overlap groove helps limit the relative displacement of adjacent waterstops, thereby preventing leakage or sealing failure due to displacement.

[0033] 11. Because the connector of this utility model adopts a corrugated structure, it not only enhances sealing performance but also increases the contact area between the connecting surfaces, thereby improving the sealing effect. The corrugated design helps to better conform to the surface of the rubber waterstop, reducing the risk of water seepage at the joint and ensuring a more reliable waterproofing effect. The corrugated structure can effectively disperse external pressure and stress, avoiding stress concentration. This allows the connection to remain stable under external forces such as water pressure and soil pressure, reducing the risk of cracking or deformation. Simultaneously, the corrugated structure has good elasticity and adaptability, maintaining a tight connection even when the rubber waterstop deforms (such as through expansion or compression). The elasticity of the corrugations helps to cope with the effects of temperature changes or structural displacement, ensuring the stability of the connection; it can effectively mitigate dimensional changes caused by thermal expansion and contraction. The corrugated design can accommodate minor displacements or deformations, preventing cracking or leakage due to excessive rigidity at the connection. Attached Figure Description

[0034] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0035] Figure 1 This is one of the schematic diagrams showing the usage state of this utility model;

[0036] Figure 2 This is the second schematic diagram of the usage state of this utility model;

[0037] Figure 3 This is the third schematic diagram of the usage state of this utility model;

[0038] Figure 4 yes Figure 3 A magnified schematic diagram of the structure at position A shown;

[0039] Figure 5 This is the fourth schematic diagram of the usage state of this utility model;

[0040] Figure 6 This is the fifth schematic diagram of the usage state of this utility model;

[0041] Figure 7This is the sixth schematic diagram of the usage state of this utility model;

[0042] Figure 8 This is the seventh schematic diagram of the usage state of this utility model;

[0043] Figure 9 This is the eighth schematic diagram of the usage state of this utility model;

[0044] Figure 10 This is the ninth schematic diagram of the usage state of this utility model;

[0045] Figure 11 This is the tenth schematic diagram of the usage state of this utility model;

[0046] Figure 12 This is the eleventh schematic diagram of the usage state of this utility model;

[0047] Figure 13 This is one of the schematic diagrams showing the usage state of another design structure of this utility model;

[0048] Figure 14 This is a second schematic diagram of the usage state of another design structure of this utility model;

[0049] Figure 15 This is the third schematic diagram of the usage state of another design structure of this utility model;

[0050] Figure 16 This is the fourth schematic diagram of the usage state of another design structure of this utility model;

[0051] Figure 17 This is a schematic diagram of the overall structure of the finished product of the connecting sleeve (5) component of this utility model;

[0052] Figure 18 This is a schematic diagram of the overall structure of the actual finished product of the waterstop grinder or waterstop grinder or angle grinder (6) component of this utility model;

[0053] Figure 19 This is one of the schematic diagrams of the actual finished product of this utility model in use;

[0054] Figure 20 This is the second schematic diagram of the actual finished product of this utility model in use;

[0055] Figure 21 This is the third schematic diagram of the actual finished product of this utility model in use;

[0056] Figure 22 This is the fourth schematic diagram of the actual finished product of this utility model in use;

[0057] Figure 23This is the fifth schematic diagram of the actual finished product of this utility model in use;

[0058] Figure 24 This is the sixth schematic diagram of the actual finished product of this utility model in use;

[0059] Figure 25 This is the seventh schematic diagram of the actual finished product of this utility model in use;

[0060] Figure 26 This is the eighth schematic diagram of the actual finished product of this utility model in use;

[0061] In the diagram, number 1 represents the first waterstop.

[0062] 2—Second waterstop;

[0063] 3—Connecting structure body, 3a—Support platform, 3b—Overlap plate, 3c—Support groove, 3d—Overlap groove;

[0064] 4—Connecting piece;

[0065] 5—Connecting sleeve;

[0066] 6—Grinding machine;

[0067] 7—Cutting machine;

[0068] 8—Drilling machine;

[0069] 9—Hot air gun;

[0070] 10 — Leveling bar or pressure roller. Detailed Implementation

[0071] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0072] In summary, a more specific embodiment of this utility model is as follows:

[0073] Example 1

[0074] As per the instruction manual Figure 1 To the instruction manual Figure 16 The diagram illustrates a simple connection structure for a rubber waterstop, comprising a connection structure body 3 for connecting the first waterstop plate 1 and the second waterstop plate 2 at their joint. The connection structure body 3 includes:

[0075] The support platform 3a extends from the connection end of the first waterstop plate 1;

[0076] An overlapping plate 3b is extended at the connecting end of the second waterstop plate 2. The overlapping plate 3b is connected above the support platform 3a and is used to connect the first waterstop plate 1 and the second waterstop plate 2 into one unit, so that both end faces of the first waterstop plate 1 and the second waterstop plate 2 are located on the same plane.

[0077] It also includes: a connecting piece 4, which is connected to the connecting ends of the first waterstop plate 1 and the second waterstop plate 2 respectively, for securing the first waterstop plate 1 and the second waterstop plate 2 together.

[0078] Furthermore, such as Figure 13 and Figure 15 as well as Figure 16 As shown, the support platform 3a and the first waterstop plate 1 are either fixedly connected or integrally formed.

[0079] Specifically, such as Figure 13 and Figure 15 as well as Figure 16 As shown, the overlapping plate 3b and the second waterstop plate 2 are fixedly connected or integrally formed.

[0080] More specifically, such as Figure 15 As shown, a support groove 3c is provided on the support platform 3a. The support groove 3c extends from one end edge of the support platform 3a along the length direction to the other end edge of the support platform 3a.

[0081] Furthermore, such as Figures 14 to 16 As shown, the connecting piece 4 is a corrugated plate-shaped component.

[0082] Furthermore, such as Figure 7 and Figure 9 As shown, the connecting piece 4 is a rectangular plate-shaped component;

[0083] Furthermore, the connecting surfaces of the connecting piece 4 with the first waterstop plate 1 and the second waterstop plate 2 are bonded together.

[0084] Specifically, the adhesive connection is achieved by bonding the connecting piece 4 to the connecting surfaces of the first waterstop plate 1 and the second waterstop plate 2 into a whole using adhesive.

[0085] Furthermore, the connecting surfaces of the connecting piece 4 and the first waterstop plate 1 and the second waterstop plate 2 are joined together by heat fusion.

[0086] Before use, the joint area should be sanded using a waterstop grinder or angle grinder to increase its surface roughness and enhance the adhesion between the heat shrink sleeve and the rubber waterstop. The sanding width on each side of the joint should be ≥125mm.

[0087] Before sanding the joint, clean the joint area; use a blade brush and a dry cleaning cloth to thoroughly remove any dust remaining on the sanded surface.

[0088] Subsequently, the operator used a grinder 6 to grind the bonding surface of the connecting end of the first waterstop 1 and the second waterstop 2 until it was smooth, and then it could be used.

[0089] In use, the operator only needs to use the connecting structure body 3 to connect the first waterstop 1 and the second waterstop 2 into a whole structure, thereby pressing the two joint end faces face to face and connecting them into a whole structure through multiple connecting pieces; then, install the connecting pieces 4, and the four connecting pieces 4 are respectively connected between the joint ends of the first waterstop 1 and the second waterstop 2 to firmly connect the upper and lower end faces of the joint of the first waterstop 1 and the second waterstop 2 together to form a whole structure.

[0090] In the above-mentioned actual use, the four connecting pieces 4 can be bonded to the connection ends of the first waterstop 1 and the second waterstop 2 using industrial adhesives, and the bonding can be made secure.

[0091] Both the first waterstop 1 and the second waterstop 2 are rubber waterstops.

[0092] In this invention, industrial adhesives are used for pasting or bonding.

[0093] On the outer surfaces of the first waterstop 1, the second waterstop 2, the connecting structure body 3, the connecting piece 4, and the connecting sleeve 5, an injection molding layer, an anti-rust layer, a waterproof layer, and a warning layer are sequentially provided from the inside to the outside. The warning layer is coated with fluorescent powder.

[0094] In this invention, a polymer wear-resistant material is injection molded onto the injection molding layer; the anti-rust layer includes an epoxy zinc-rich primer and a chlorinated rubber topcoat, as well as an epoxy micaceous iron oxide intermediate paint located between the epoxy zinc-rich primer and the chlorinated rubber topcoat; the waterproof layer is a polyurethane waterproof coating; and the warning layer is a reflective warning tape, reflective film, or reflective paint of a single color or a mixture of multiple colors.

[0095] Throughout the entire implementation process described above, the application of anti-rust paint and a waterproof layer to the exterior of this utility model prevents rusting and extends the service life of the entire device, achieving environmental protection while saving resources. Furthermore, the coating of the connecting structure with a self-illuminating fluorescent material clearly marks the location of the connecting structure at night, in dark indoor environments, or underground construction environments, effectively serving as a safety warning, increasing visibility, making it easy for people to identify, and enhancing safety during construction and daily life.

[0096] Meanwhile, in this utility model, all connections referred to are fixed connections, movable connections, or detachable connections. Among them, fixed connections are welded connections or directly processed into an integral structure; movable connections, detachable connections, or split structures are hinged connections, internal and external threaded connections, bayonet connections, plug-in sleeves, bolt assembly connections, or screw connections.

[0097] Example 2

[0098] This embodiment 3 is the same as embodiments 1 and 2, except that it is more specific, as follows: Figure 15 As shown, an overlap groove 3d is provided on the overlap plate 3b. The overlap groove 3d extends from one end edge of the overlap plate 3b along the length direction and is provided at the other end edge of the overlap plate 3b. The overlap groove 3d and the support groove 3c are fitted and snapped together.

[0099] This embodiment 2 is the same as embodiment 1, except that the overlapping groove 3d and the support groove 3c are matched and snapped together, thereby realizing the tight snapping connection of the first waterstop 1 and the second waterstop 2 into a whole structure.

[0100] Example 3

[0101] This embodiment 3 is the same as embodiment 1 and embodiment 2, except that it also includes a heat shrinkable sleeve 5, which is sleeved on the outside of the connection end between the first water stop plate 1 and the second water stop plate 2; the heat shrinkable sleeve has an overall structure with open ends and hollow inside; the inside of the connecting sleeve 5 can also have several prisms connected in a circumferential direction, which can be connected to the connecting piece 4 after heat melting.

[0102] In this invention, industrial adhesives are used for pasting or bonding.

[0103] On the outer surfaces of the first waterstop plate 1, the second waterstop plate 2, the connecting structure body 3, the connecting piece 4, and the connecting sleeve 5, an injection molding layer, an anti-rust layer, a waterproof layer, and a warning layer are sequentially provided from the inside to the outside. The warning layer is coated with fluorescent powder.

[0104] In this invention, a polymer wear-resistant material is injection molded onto the injection molding layer; the anti-rust layer includes an epoxy zinc-rich primer and a chlorinated rubber topcoat, as well as an epoxy micaceous iron oxide intermediate paint located between the epoxy zinc-rich primer and the chlorinated rubber topcoat; the waterproof layer is a polyurethane waterproof coating; and the warning layer is a reflective warning tape, reflective film, or reflective paint of a single color or a mixture of multiple colors.

[0105] Meanwhile, in this utility model, all connections referred to are fixed connections, movable connections, or detachable connections. Among them, fixed connections are welded connections or directly processed into an integral structure; movable connections, detachable connections, or split structures are hinged connections, internal and external threaded connections, bayonet connections, plug-in sleeves, bolt assembly connections, or screw connections.

[0106] This embodiment 3 is the same as embodiment 1 and embodiment 2, except that, based on embodiment 1 and embodiment 2, it also includes a connecting sleeve 5, which is sleeved on the outside of the connection end between the first waterstop 1 and the second waterstop 2.

[0107] The connecting sleeve 5 is a heat shrink sleeve, which has an overall structure with openings at both ends and a hollow interior.

[0108] In this utility model, the material of the connecting sleeve 5 is the same as that of the connecting piece 4. The purpose of the design of the connecting sleeve 5 is to make it more tightly connected with the connecting piece 4 and to achieve a better sealing effect. The interior of the connecting sleeve 5 can also have several prisms connected in a circumferential direction. The prisms facilitate connection with the connecting piece 4 after heat fusion.

[0109] Before using the simple rubber waterstop connection structure designed in Embodiment 3 above, the operator only needs to transport the pre-prepared installation components of this utility model to the designated construction location for installation using appropriate handling equipment or directly by hand.

[0110] Before installation, the construction site must be prepared as follows: The construction site must be flat, dry, and free of corrosive chemical substances, and there should be sufficient space to facilitate the quick movement and construction of the first waterstop 1 and the second waterstop 2.

[0111] Material preparation: The first waterstop 1 and the second waterstop 2 are rubber waterstops; the connecting sleeve 5 is a heat-shrink sleeve, specifically a steel strip heat-shrink sleeve DN300*250; the connecting piece 4 is made of the same material as the connecting sleeve. The materials, specifications, and models of the rubber waterstops and heat-shrink sleeves meet the design requirements. Their surfaces are smooth, undamaged, free of bubbles, impurities, and other defects, exhibiting good quality.

[0112] Tool preparation: Commonly used construction auxiliary tools include: prepare the corresponding tools, such as knives, sandpaper, grinders, cutting machines, drilling machines, hot air guns or gas spray guns, leveling bars or pressure rollers, clamps, etc. After preparation, construction can begin.

[0113] Before construction, the rubber waterstop joints must first be pre-assembled, specifically the first waterstop 1 and the second waterstop 2. During assembly, the flatness and straightness of the rubber waterstop joints must be carefully checked to ensure they meet standard requirements. Then, the pre-assembly of the rubber waterstop joints is performed, ensuring the joint width after assembly is ≤3mm. If this requirement is not met, it is adjusted using a utility knife until it is satisfactory.

[0114] Next, for the positioning and marking of the joint, the heat shrink sleeve should preferably be selected with a shrinkage ratio of 2:1 or 4:1 based on the width of the first waterstop 1 and the second waterstop 2 being wrapped. The length of the heat shrink sleeve should be ≥250mm, and its extension to both sides of the joint should be ≥125mm. Based on the length of the heat shrink sleeve, the length of the joint should be marked at the predetermined marking positions at both ends of the joint of the first waterstop 1 and the second waterstop 2.

[0115] Next, the joint area is polished.

[0116] Use a waterstop grinder or angle grinder to grind the joint area of ​​the rubber waterstop to increase its surface roughness, thereby enhancing the adhesion between the heat shrink sleeve and the rubber waterstop. The grinding width on each side of the joint should be ≥125mm.

[0117] Before sanding the joint, clean the joint area; use a blade brush and a dry cleaning cloth to thoroughly remove any dust remaining on the sanded surface.

[0118] Subsequently, the operator used a grinder 6 to grind the bonding surface of the connecting end of the first waterstop 1 and the second waterstop 2 until it was smooth, as needed.

[0119] At the same time, the connecting structure body 3 is used to connect the first waterstop 1 and the second waterstop 2 into a whole structure, thereby pressing the two joint end faces face to face and connecting them into a whole structure through multiple connecting pieces; then, connecting pieces 4 are installed, and four connecting pieces 4 are respectively connected between the joint ends of the first waterstop 1 and the second waterstop 2 to firmly connect the upper and lower end faces of the joint of the first waterstop 1 and the second waterstop 2 together; finally, connecting sleeve 5 is installed again, and connecting sleeve 5 is a heat shrink sleeve.

[0120] In the above process, the four connecting pieces 4 can be bonded to the connecting ends of the first waterstop 1 and the second waterstop 2 using industrial adhesive. After the bonding is stable, the heat shrink sleeve can be installed.

[0121] When installing the heat shrink sleeve, first, put the heat shrink sleeve together with the release liner onto the rubber waterstop, that is, put the connecting sleeve 5 on the joint of the first waterstop 1 and the second waterstop 2.

[0122] Then, connect it to the waterstop that needs to be extended. Next, for the rubber waterstops being connected, ensure that the ends of the two rubber waterstops are aligned, the surfaces are flat, and they are fixed in place. The gap should be controlled within 3mm, and the center displacement should not exceed 5mm. Then, move the heat shrink sleeve to the pipe joint to be welded, centering it at the center of the two pipes, with even allowance on both sides, ensuring it is precisely installed on the marked and ground area, and ensuring that its extension to both sides of the joint is not less than 125mm. Finally, remove the protective release film.

[0123] After the heat shrink sleeve is installed, heat shrink the heat shrink sleeve and connecting piece 4 to shrink them.

[0124] Begin heating with a hot air gun (9). First, heat the middle part of the heat shrink sleeve, making sure the middle part of the heat shrink sleeve wraps around the waterstop and adheres tightly to it. The rest of the heat shrink sleeve will curl up to both sides, and the peaks and troughs in the middle part will be clearly defined. When heating, the nozzle of the hot air gun (9) should be about 5-10cm away from the heat shrink sleeve, and it should be moved up and down evenly during baking to ensure that the hot melt adhesive base material melts evenly and shrinks tightly.

[0125] After tightening the middle section, use the hot air gun 9 to gradually heat both sides. Hold the hot air gun 9 and swing it back and forth. Do not leave the nozzle of the gun in one place or continuously heat a certain part, as this will cause the heat shrink sleeve to heat up rapidly and carbonize, resulting in cracking. When heating both sides, do not rush. Heat from the inside out gradually. During the shrinking process, you should clearly see that the peaks and troughs of the pipe are tightly attached to the heat shrink sleeve. There should be no air bubbles or suspended parts in the middle. Continue until the heat shrink sleeve is evenly and tightly attached to the connecting piece 4, and the connecting piece 4 is tightly attached and fixed to the rubber waterstop.

[0126] After the heat shrink sleeve is tightly attached to the connecting piece 4, a second baking is required. The purpose is to ensure that the hot melt adhesive melts evenly, preventing areas from being under-baked or where the adhesive is not fully melted during the first baking. If the hot melt adhesive does not melt well, it will not be able to fuse with the waterstop and will cause water leakage. During the second baking, the spray gun should be swung with a large amplitude and moved up and down, but not left and right, until the heat shrink sleeve shrinks and adhesive overflows at both edges. The overflow effect should be clearly visible.

[0127] Check the tightness of the heat shrink sleeve and the effect of excess glue. If any areas are found where no glue has been applied, use a heat gun to reheat them until glue overflows. Pay special attention to the area below the waterstop strip to observe the effect of glue overflow.

[0128] During the heat shrinking process, it is necessary to roll and vent air, and compact the material. During this process, workers only need to use a leveling bar or pressure roller 10 to roll from the middle of the heat shrink sleeve towards both ends to remove air bubbles and voids. Ensure the heat shrink sleeve and the connecting piece 4 are tightly fitted to ensure good sealing performance.

[0129] Finally, after the heat shrink sleeve has shrunk, check the adhesion quality using the finger pressure method. Press the surface of the heat shrink sleeve with your finger; if the small indentation slowly returns to its original shape, the adhesion quality is good. The appearance quality of the heat shrink sleeve should be smooth, free of bubbles, wrinkles, cracks, and other defects. The overlaps should fit tightly and be sealed tightly, without gaps or bubbles.

[0130] Cooling and curing

[0131] The rubber waterstop should only be installed after the joint has cooled to ambient temperature to prevent displacement or damage before the heat shrink sleeve has fully cured. If any loosening, detachment, or damage is found at the overlap during on-site manual tensile testing, appropriate repair measures should be taken immediately.

[0132] During installation and use, simply take the rubber waterstop that has been processed and designed as described above to the designated expansion joint for installation.

[0133] The advantages of this embodiment 3 in the specific implementation are:

[0134] 1. The present invention is easy to construct. The installation of the connecting piece and the connecting sleeve is relatively simple. It only requires heating to shrink and cover or wrap the joint of the two rubber waterstops. No complicated tools and processes are required, and the construction process is relatively convenient.

[0135] 2. The present invention has strong water pressure resistance. After being connected by connecting pieces and connecting sleeves, the water pressure resistance of two adjacent rubber waterstop joints is enhanced, and it can withstand greater water pressure. Especially in water conservancy projects and underground projects, it can effectively prevent water leakage.

[0136] 3. The present invention has strong adaptability. The connecting piece and connecting sleeve can adapt to rubber waterstop joints of different shapes and sizes, and have good compatibility. It is not limited by the position or size of the joint and has strong versatility.

[0137] 4. The present invention, through the shrinking of the connecting piece and the connecting sleeve, tightly wraps around the joint, forming a compact structure and a whole. This reduces the weaknesses of the joint, avoids the loosening or leakage problems that may occur in traditional connection methods, has a good sealing effect, can ensure the quality of construction, and is easy to construct.

[0138] 5. This invention utilizes connecting pieces and sleeves at the joints of the rubber waterstop, based on the memory effect of heat-shrinkable materials and a specific process. The connecting pieces and sleeves are composed of radiation-crosslinked polyethylene and hot-melt adhesive. Upon heating, the polyethylene shrinks radially, and the internal adhesive layer melts, forming a strong bond. As the temperature rises, the polyethylene tightly wraps around the joint, forming a robust connecting layer with wear-resistant, corrosion-resistant, impact-resistant, and UV-resistant properties. It can operate stably for extended periods in various chemical media and is suitable for use in complex environments.

[0139] The following construction equipment and precautions are required during the construction process of this utility model, as detailed below:

[0140] 1. Materials and Equipment

[0141] 6.1 List of Major Mechanical Equipment

[0142] Table 6.1 Mechanical Equipment

[0143]

[0144]

[0145] 6.2 Main Material List

[0146] Bill of Materials, Table 6.2

[0147]

[0148] 2. Quality Control

[0149] 7.1 Adopting and referencing normative standards

[0150] "Polymer Waterproofing Materials - Part 2: Waterstops" GB18173.2

[0151] Atlas of Water-Retaining Structures in Underground Buildings 10J301

[0152] Code for Construction and Acceptance of Water Supply and Drainage Structures GB50141

[0153] Technical Specification for Waterproofing of Underground Engineering (GB50108)

[0154] Flame-retardant polyolefin heat shrink tubing for communication applications (YD / T 2490)

[0155] Technical Specification for Underground Heat Shrink Sleeve Splicing of Railway Signal Cables (TB / T 10301)

[0156] Technical Standard for Polyethylene Anticorrosion Coating of Buried Steel Pipelines SY / T 0413

[0157] 7.2 After installation, use the finger pressure method to check the adhesion quality of the heat shrink sleeve. Press the surface of the heat shrink sleeve with your finger; if the small indentation slowly returns to its original shape, it indicates that the adhesion quality is good.

[0158] 7.3 Quality Requirements

[0159] Quality requirements shall be implemented in accordance with Table 7.3.

[0160] Quality control requirements table 7.3

[0161]

[0162] Note: According to GB18173.2-2014, "Polymer Waterproofing Materials Part 2: Waterstops", section 4.3.2, the tensile strength of the joint of the waterstop should not be less than 80% of that specified in Table 3 (except for joints constructed on site).

[0163] 3. Safety Management Measures

[0164] 8.1 Implementation Standards

[0165] Technical Regulations for Safety of High-Altitude Operations in Building Construction (JGJ80)

[0166] Construction Safety Inspection Standard (JGJ59)

[0167] Technical Specification for Safety of Temporary Power Supply at Construction Sites (JGJ46)

[0168] Hot Work Operation Standard GB30871

[0169] 8.2 Safety education must be strengthened. All personnel entering the construction site must receive safety education and specialized safety technical training to ensure they are familiar with safe operating procedures.

[0170] 8.3 Upon entering the construction site, wear a safety helmet correctly and fasten the chin strap. When working at heights (above 2m) or near edges without reliable safety protection facilities, fasten the safety belt (high attachment, low application).

[0171] 8.4 Before commencing work, operators should carefully inspect whether the safety protection at construction openings and edges, as well as scaffolding, guardrails, toe boards, and safety nets, are safe and secure.

[0172] 8.5 Mechanical equipment, power tools, etc. must have reliable grounding and neutral grounding measures and leakage protection devices.

[0173] 8.6 Construction workers should wear protective gloves, goggles and other protective equipment to avoid burns and eye injuries.

[0174] 8.7 There should be no flammable or explosive materials in the vicinity of the work site, and fire-fighting facilities must be provided in the work environment.

[0175] 4. Environmental Protection Measures

[0176] 9.1 Materials at the construction site should be neatly stacked, and discarded waterstops and heat shrink sleeves should be stored in designated locations and cleaned up promptly. The work area should be kept clean and tidy after each task is completed.

[0177] 9.2 Flammable materials such as roll-type release films and discarded packaging bags removed during construction must be removed immediately and must not be scattered or piled up haphazardly. Throwing debris from heights is strictly prohibited.

[0178] 9.3 Construction equipment shall be regularly maintained, serviced and cleaned, and arranged neatly and aesthetically on site.

[0179] 5. Economic benefits

[0180] Compared to traditional hot melt welding, this method significantly reduces defects such as incomplete fusion and voids during the hot melt process. Traditional hot melt welding requires 20 to 30 minutes of heating with power, while using heat shrink sleeves only requires 4 to 8 minutes. This greatly saves time, reduces process costs, and effectively shortens the construction period. At the same time, using heat shrink sleeves to connect the waterstop also reduces the overlap of the waterstop, resulting in economic benefits of approximately 60,261.17 yuan.

[0181] 6. Application Examples

[0182] The 11.1 Yunnan Carbon Neutrality Demonstration Industrial Park Infrastructure Construction Project (Site Leveling and Road Engineering) Social Investor and Cooperative Engineering General Contracting Section 1 is located in Luxi County, Honghe Prefecture. The No. 5 municipal road's stormwater culvert is a reinforced concrete structure, with a total designed and constructed length of 5779.2 meters of rubber waterstops. The No. 2 road extension stormwater culvert construction expansion joint treatment is also included for 400 meters. The connection quality during construction was reliable, receiving unanimous praise from the owner, supervision unit, design unit, and command center, and its model has been widely promoted by other units.

[0183] 11.2 The Wenshan College Teacher Education Professional Group Training Center Project, located in Wenshan City, Wenshan Prefecture, is a frame structure. 310 meters of rubber waterstops were used for the underground foundation slab and retaining wall post-pouring strips. The tight connections and effective construction significantly shortened the construction period and increased economic benefits, earning unanimous praise from the command center and supervision unit.

[0184] The 11.3 Guangnan County Second Wastewater Treatment Plant Project, located in Guangnan County, Wenshan Prefecture, is a reinforced concrete structure. A total of 900 meters of rubber waterstops were used. The rubber waterstops were connected using heat-shrink sleeves, which facilitated construction, ensured high safety, and provided good economic benefits. It received unanimous praise from the participating units.

Claims

1. A simple connection structure for a rubber waterstop, comprising a connection structure body (3) for connecting the joint between a first waterstop plate (1) and a second waterstop plate (2), characterized in that, The connecting structure body (3) includes: A support platform (3a) extending from the connection end of the first waterstop plate (1); An lap plate (3b) is extended at the connecting end of the second waterstop plate (2). The lap plate (3b) is connected above the support platform (3a) to connect the first waterstop plate (1) and the second waterstop plate (2) into one unit, and to make the two end faces of the first waterstop plate (1) and the second waterstop plate (2) located on the same plane. It also includes: a connecting piece (4), which is connected to the connecting end of the first waterstop plate (1) and the second waterstop plate (2) respectively, for the purpose of firmly connecting the first waterstop plate (1) and the second waterstop plate (2) together.

2. The simple rubber waterstop connection structure according to claim 1, characterized in that, The support platform (3a) and the first waterstop plate (1) are fixedly connected or integrally formed.

3. The simple rubber waterstop connection structure according to claim 1, characterized in that, The overlapping plate (3b) and the second waterstop plate (2) are fixedly connected or integrally formed.

4. The simple rubber waterstop connection structure according to claim 1 or 2, characterized in that, A support groove (3c) is provided on the support platform (3a), and the support groove (3c) extends from one end edge of the support platform (3a) along the length direction to the other end edge of the support platform (3a).

5. A simple rubber waterstop connection structure according to claim 1 or 3, characterized in that, An overlap groove (3d) is provided on the overlap plate (3b). The overlap groove (3d) extends from one end edge along the length direction of the overlap plate (3b) to the other end edge of the overlap plate (3b). The overlap groove (3d) and the support groove (3c) are fitted and snapped together.

6. The simple rubber waterstop connection structure according to claim 1, characterized in that, The connecting piece (4) is a corrugated plate-shaped component.

7. The simple rubber waterstop connection structure according to claim 1, characterized in that, The connecting piece (4) is a rectangular plate-shaped component.

8. The simple rubber waterstop connection structure according to claim 1, characterized in that, The connection surfaces of the connecting piece (4) with the first waterstop plate (1) and the second waterstop plate (2) are bonded together.

9. The simple rubber waterstop connection structure according to claim 8, characterized in that, The adhesive connection is that the connecting surfaces of the connecting piece (4) and the first waterstop plate (1) and the second waterstop plate (2) are bonded together as a whole by adhesive.

10. The simple rubber waterstop connection structure according to claim 1, characterized in that, The connecting plate (4) is connected to the first waterstop plate (1) and the second waterstop plate (2) by heat fusion.

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