A self-sealing wall bushing

Abstract

The utility model discloses a self -sealed wall bushing belongs to building engineering technical field, including the bushing body of through wall and the sealing ring of being located the both ends of bushing body, wherein, both ends of bushing body all are provided with the sealing groove of cooperation with sealing ring, still including the pipeline of through bushing body and with bushing body concentric arrangement, sealing ring and the outer wall interference fit of pipeline are connected together. The utility model discloses utilize the elastic deformation characteristic of sealing ring and realize self -sealing, and when the pipeline passes through, and the rubber sealing ring is curved along the direction of passing through the pipe, and the sealing surface of forming close adhesion with the outer wall of pipeline, need not rely on the additional filler such as oil hemp, sealant, avoid the leakage risk from the improper construction operation on the structure, and the sealing effect is stable and durable.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, specifically relating to a self-sealing through-wall sleeve. Background Technology

[0002] In the field of building and piping engineering, wall sleeves are core components that ensure the structural safety and functionality of pipelines when they pass through structures. Traditional sleeves are mainly divided into two categories: rigid sleeves and flexible sleeves. Rigid sleeves achieve basic protection through a rigid connection with the wall, while flexible sleeves buffer pipeline displacement through flexible components such as rubber rings. However, both types of sleeves rely on additional sealing measures to achieve seepage prevention.

[0003] Existing sleeves have several shortcomings in practical applications that urgently need to be addressed: First, their sealing performance is heavily dependent on construction quality. Traditional sleeves require filling with hemp, asbestos, cement mortar, or applying sealant to achieve a seal. The sealing effect depends entirely on the operator's adherence to procedures. Insufficient compaction of the filler, uneven application of sealant, or welding defects can easily lead to leakage during use. Second, the construction process is cumbersome. After installation, the sleeve requires multiple sealing steps, including filling with filler, plastering the surface, and repairing the waterproof layer. This not only prolongs the construction period but also increases labor and material costs. Third, their durability is insufficient. Traditional sealing materials such as hemp are prone to moisture and rot, asbestos poses safety hazards, cement mortar is prone to cracking, and sealant is prone to aging and failure. They typically require replacement after 3-5 years, resulting in high maintenance costs. Fourth, maintenance is difficult. When the sealing material fails, the surrounding plaster layer must be removed, and the old filler cleaned before resealing can be performed, interfering with the building structure and normal pipeline operation.

[0004] Therefore, developing a wall sleeve that requires no additional sealing materials, is easy to construct, highly durable, and convenient to maintain has become a key requirement for solving the pain points of existing technologies. Utility Model Content

[0005] To address the problems of existing wall sleeves, such as the need for additional sealing materials, complex construction, insufficient durability, and difficult maintenance, this invention provides a self-sealing wall sleeve. It can be widely used in wall installation scenarios for various pipeline projects, including water supply and drainage, HVAC, and fire protection, and is particularly suitable for building projects with high requirements for sealing reliability and construction efficiency.

[0006] The technical solution adopted by this utility model for a self-sealing through-wall sleeve is as follows: A self-sealing through-wall sleeve includes a sleeve body that penetrates the wall and sealing rings located at both ends of the sleeve body; wherein, both ends of the sleeve body are provided with sealing grooves that cooperate with the sealing rings. It also includes a pipe that passes through the sleeve body and is arranged concentrically with the sleeve body, and the sealing ring is connected to the outer wall of the pipe with an interference fit.

[0007] A further improvement of this utility model is that the thickness of the sealing ring is not less than 8mm.

[0008] A further improvement of this utility model is that the sleeve body and the sealing ring are bonded and fixed together by a special adhesive.

[0009] A further improvement of this utility model is that the diameter D2 of the sleeve body and the diameter D1 of the pipe passing through the sleeve body satisfy the condition that D2 = D1 + 50mm ~ D1 + 100mm.

[0010] A further improvement of this utility model is that the outer diameter of the sealing ring is D2+60mm, and the inner diameter of the sealing ring is D1-10mm~D1-20mm.

[0011] A further improvement of this utility model is that the sealing ring has elastic deformation capability. When the pipe passes through the sleeve body, the sealing ring bends along the pipe passage direction and fits tightly against the outer wall of the pipe to form a sealing structure.

[0012] A further improvement of this utility model is that the length of the sleeve body is adapted to the wall thickness, and both ends of the sleeve body extend out of the wall surface.

[0013] Due to the adoption of the above technical solution, the technical progress achieved by this utility model includes: This invention utilizes the elastic deformation characteristics of the sealing ring to achieve self-sealing. When the pipe passes through, the rubber sealing ring naturally bends along the pipe penetration direction, forming a tightly fitting sealing surface with the outer wall of the pipe. It does not require additional fillers such as hemp oil or sealant, and structurally avoids the risk of leakage caused by improper construction operations, resulting in a stable and long-lasting sealing effect.

[0014] This utility model consists of only a sleeve body and a rubber sealing ring, with a simple structure. During installation, the sleeve body is fixed to the pre-drilled hole in the wall, and the pipe is directly passed through to complete the seal. This eliminates the multiple processes of filling and sealing with filler in traditional sleeves, shortens the installation time of a single sleeve, and speeds up the construction progress.

[0015] The sealing ring of this utility model is a detachable structure. When it ages or is damaged, there is no need to remove the sleeve body and damage the wall structure. You only need to remove the old sealing ring, clean the bonding surface and replace it with a new ring. The maintenance time is short and the cost is low, which greatly reduces the difficulty of later operation and maintenance.

[0016] This utility model has fewer components, requiring only simple processing of the pipe and bonding with the sealing ring during manufacturing, resulting in low raw material costs. At the same time, the simplified construction process reduces labor costs, and maintenance costs are reduced during long-term use, resulting in significant overall economic benefits. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a self-sealing through-wall sleeve according to the present invention.

[0018] In the attached diagram: 1. Sleeve body; 2. Sealing ring; 3. Sealing groove; 4. Pipeline. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. In the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of this utility model.

[0020] Example 1 like Figure 1 As shown, this embodiment provides a self-sealing through-wall sleeve, comprising two core components: a sleeve body 1 and a sealing ring 2. These two components are firmly bonded together using a special adhesive to form an integrated structure. The special adhesive is an epoxy resin-based structural adhesive, which features high bonding strength, aging resistance, and resistance to media corrosion. Before bonding, the bonding areas of the sleeve body 1 and the corresponding contact surfaces of the sealing ring 2 must be polished to remove surface oil and impurities. Then, the adhesive is applied evenly. After application, the two components are aligned and bonded together, a certain pressure is applied, and the mixture is allowed to cure for 24 hours to ensure a firm bond and prevent detachment during use.

[0021] In this embodiment, the sleeve body 1 is made of seamless steel pipe. This type of steel pipe has the characteristics of high strength, good toughness, and corrosion resistance, and can meet the support and protection requirements of the wall for the pipe 4 in building engineering. The processing of the sleeve body 1 includes cutting, grinding, and rust removal. The length of the sleeve body 1 is determined according to the thickness of the wall it passes through. Usually, the length of the sleeve body 1 is 100-150mm longer than the wall thickness, ensuring that both ends of the sleeve body 1 extend 50-75mm beyond the wall surface. This facilitates the positioning of the pipe 4 and the installation of the sealing ring 2 during installation, while also preventing the humid environment inside the wall from directly contacting the sealing part.

[0022] In this embodiment, the sealing ring 2 is made of flame-retardant and oxidation-resistant EPDM rubber with a thickness of not less than 8mm (e.g., 10mm). This material has excellent elasticity, aging resistance, and flame-retardant properties, and can withstand temperature changes from -40℃ to 120℃ for extended periods, making it suitable for various building environments. The thickness of the sealing ring 2 is set to 10mm, ensuring sufficient elastic deformation capacity while providing stable sealing pressure. Simultaneously, both ends of the sleeve body 1 are provided with sealing grooves 3 that mate with the sealing ring 2.

[0023] In terms of size matching design, for pipe 4 with diameter D1=100mm, the diameter D2 of sleeve body 1 is set to 150mm, the outer diameter of sealing ring 2 is 210mm, and the inner diameter is 85mm. These size parameters enable sealing ring 2 to form a tight bond with sleeve body 1, and to generate appropriate elastic deformation when pipe 4 passes through, ensuring a tight seal with the outer wall of pipe 4.

[0024] In addition, for pipe 4 with diameter D1=200mm, the diameter D2 of sleeve body 1 can be set to 280mm, the outer diameter of sealing ring 2 is 340mm, and the inner diameter is 185mm; for pipe 4 with larger diameter, the size can be adapted according to the ratio of D2=D1+50mm~100mm and sealing ring 2 inner diameter=D1-10mm~20mm.

[0025] During construction and installation, installation holes are first reserved in the wall according to design requirements. The diameter of the reserved holes is 20-30mm larger than the outer diameter of the sleeve body 1. Then, the sleeve body 1 is embedded into the reserved holes, and the gap between the sleeve body 1 and the reserved holes is filled with cement mortar to fix the sleeve body 1. After the cement mortar has cured, the pipe 4 to be passed through is inserted from one end of the sleeve body 1, through the inner hole of the sealing ring 2, and out from the other end. During this process, the sealing ring 2 is bent and deformed along the pipe passing direction due to the compression of the pipe 4. Its inner diameter surface is tightly attached to the outer wall of the pipe 4, naturally forming a reliable sealing structure without the need for any additional filler sealing treatment.

[0026] If, during later maintenance, problems such as aging and cracking, decreased elasticity, or sealing failure are found in the sealing ring 2, the old rubber sealing ring 2 can be directly peeled off from the sleeve body 1 and replaced with a new rubber sealing ring 2. This will not affect the normal operation of the wall structure and the pipe 4.

[0027] In the above embodiments, this utility model provides a self-sealing through-wall sleeve. This utility model utilizes the elastic deformation characteristics of the sealing ring to achieve self-sealing. When the pipe passes through, the rubber sealing ring naturally bends along the pipe penetration direction, forming a tightly fitting sealing surface with the outer wall of the pipe. It eliminates the need for additional fillers such as hemp fiber or sealant, structurally avoiding the risk of leakage due to improper construction operations, and providing a stable and long-lasting sealing effect. This utility model consists only of the sleeve body and the rubber sealing ring, with a simple structure. During installation, simply fix the sleeve body to the pre-drilled hole in the wall, and then directly pass the pipe through to complete the seal, eliminating the need for traditional... The multiple processes of filling and sealing the sleeve can shorten the installation time of a single sleeve and speed up the construction progress. The sealing ring of this utility model is a detachable structure. When it ages or is damaged, there is no need to remove the sleeve body and damage the wall structure. Only the old sealing ring needs to be removed, the bonding surface cleaned, and the new ring replaced. The maintenance time is short and the cost is low, which greatly reduces the difficulty of later operation and maintenance. This utility model has few parts. During the manufacturing process, only simple processing of the pipe and bonding with the sealing ring are required, resulting in low raw material costs. At the same time, the simplified construction process reduces labor costs and reduces maintenance costs in long-term use, resulting in significant comprehensive economic benefits.

[0028] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A self-sealing through-wall sleeve, characterized in that: It includes a sleeve body (1) that penetrates the wall and sealing rings (2) located at both ends of the sleeve body (1); wherein, both ends of the sleeve body (1) are provided with sealing grooves (3) that cooperate with the sealing rings (2). It also includes a pipe (4) that runs through the sleeve body (1) and is arranged concentrically with the sleeve body (1), while the sealing ring (2) is connected to the outer wall of the pipe (4) with an interference fit.

2. The self-sealing through-wall sleeve according to claim 1, characterized in that: The thickness of the sealing ring (2) is not less than 8 mm.

3. The self-sealing through-wall sleeve according to claim 1, characterized in that: The sleeve body (1) and the sealing ring (2) are bonded and fixed together by a special adhesive.

4. A self-sealing through-wall sleeve according to claim 1, characterized in that: The diameter D2 of the casing body (1) and the diameter D1 of the pipe (4) passing through the casing body (1) satisfy the condition that D2 = D1 + 50 mm ~ D1 + 100 mm.

5. A self-sealing through-wall sleeve according to claim 4, characterized in that: The outer diameter of the sealing ring (2) is D2+60mm, and the inner diameter of the sealing ring (2) is D1-10mm~D1-20mm.

6. A self-sealing through-wall sleeve according to claim 1, characterized in that: The sealing ring (2) has elastic deformation capability. When the pipe (4) passes through the sleeve body (1), the sealing ring (2) bends along the direction of the pipe (4) and fits tightly against the outer wall of the pipe (4) to form a sealing structure.

7. A self-sealing through-wall sleeve according to claim 1, characterized in that: The length of the sleeve body (1) is adapted to the wall thickness, and both ends of the sleeve body (1) extend out of the wall surface.

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