Unit curtain wall beam light outlet waterproof device

Abstract

The utility model provides unit formula curtain wall crossbeam light outlet waterproof device, include: elastic sealing body, compression seal subassembly and auxiliary plugging structure, elastic sealing body has a plurality of through cable channel, compression seal subassembly contains the nut and pressing plate of setting in the outside of elastic sealing body, compression seal subassembly contains the nut, pressing plate and the embedded bolt of setting of outside of elastic sealing body and curtain wall crossbeam, the nut is connected with the embedded bolt of curtain wall crossbeam thread, and the elastic sealing body is pressed in curtain wall crossbeam reserved opening, auxiliary plugging structure is a plurality of plugs, and the plug is used for plugging the cable channel of not using. The utility model discloses through structural innovation has realized " sealed reliable, installation efficient, adaptation nimble, durable easy maintenance " advantage, effectively solved traditional curtain wall outlet device sealing failure, the problem of complicated operation, poor adaptability etc, is applicable to the light outlet scene of all kinds unit formula curtain wall.

Description

Technical Field

[0001] This utility model relates to the field of architectural lighting equipment technology, specifically to a waterproof device for the light outlet of a unitized curtain wall beam. Background Technology

[0002] In unitized curtain wall systems, waterproof sealing of lighting cables is a crucial aspect of ensuring the overall performance of the curtain wall. Traditional unitized curtain wall beam cable outlet structures typically use a single sealing strip or simple rubber plug for waterproofing, but their reliability is insufficient in complex environments. For example, current technologies often achieve sealing by using sealing strips against the surface or by injecting sealant on-site, but these methods suffer from cumbersome installation, easy aging and detachment of the sealing strips, and failure of the sealing layer due to temperature changes or structural displacement. Furthermore, unused cable outlet channels lack effective sealing measures, increasing the risk of water leakage; simultaneously, traditional structures have poor adaptability to cables of different diameters or types, making it difficult to meet diverse engineering needs. When working at heights, traditional installation methods rely on specialized tools, resulting in low operational efficiency and safety hazards.

[0003] The shortcomings of existing technology: 1. Insufficient sealing performance Traditional sealing structures (such as independent sealing strips or on-site injection) are susceptible to environmental factors. Over time, the sealing strips may age, harden, or shift, leading to a decrease in water tightness and air tightness. For example, the dual-sided sealing structure in CN203640112U requires separate installation, and the sealing strips are only fixed via slots. This makes them prone to detachment due to vibration or temperature changes, causing leakage. Furthermore, traditional methods have design flaws in complex nodes such as cross-shaped joints, making it difficult to achieve a continuous seal and increasing the risk of water leakage.

[0004] 2. Installation is complex and inefficient. Existing technologies rely on on-site caulking or multi-component, step-by-step installation, which is cumbersome and requires high precision. For example, some structures require lifting holes to be drilled in the beams and then sealed later, which not only increases the risk of leakage but also requires additional procedures, affecting construction efficiency. When working at heights, traditional nuts require tools to tighten, which is inconvenient and time-consuming.

[0005] 3. Poor cable adaptability Existing cable outlet structures typically use a fixed aperture design, which cannot flexibly adapt to cables of different diameters or types (such as power cables and network cables). This necessitates additional hole enlargement or component replacement during installation, increasing costs and time. Furthermore, unused channels lack effective sealing; simply plugging or ignoring the issue can easily create seepage paths.

[0006] Therefore, existing technologies have shortcomings and need further improvement. Utility Model Content

[0007] In view of the problems existing in the prior art, this utility model provides a waterproof device for the lighting cable outlet of a unitized curtain wall beam.

[0008] To achieve the above objectives, the specific solution of this utility model is as follows: This utility model provides a waterproof device for the lighting cable outlet of a unitized curtain wall beam, comprising: Elastic sealing body, compression sealing assembly and auxiliary sealing structure; The shape of the elastic sealing body matches the shape of the reserved opening in the curtain wall beam, and several through cable channels are provided. The compression sealing assembly includes a nut, a pressure plate, and pre-embedded bolts on the curtain wall beams, all disposed on the outside of the elastic sealing body. The nut is threadedly connected to the pre-embedded bolt of the curtain wall beam. The pressure plate is located between the nut and the outer wall of the elastic seal body. The pressure plate presses the elastic seal body into the reserved opening of the curtain wall beam through the tightening action of the nut. The auxiliary sealing structure consists of several plugs, which are used to seal unused cable channels.

[0009] Furthermore, the elastic seal is made of silicone rubber. The inner wall of the cable channel is provided with annularly distributed sealing ribs.

[0010] Furthermore, the elastic sealing body is cuboid in shape, and its shape is adapted to the rectangular hole structure of the reserved opening in the curtain wall beam; The nut is located on the outside of the pressure plate. It is tightened by screwing the nut and bolt together, which deforms the elastic seal and makes it fit tightly against the cable.

[0011] Furthermore, the cable channel includes elliptical holes and circular holes; The elliptical holes are used to fit cables, and the circular holes are used to fit network cables. The circular and elliptical holes are symmetrically distributed to match the number and diameter of the cables.

[0012] Furthermore, the plug and the cable channel are fitted with an interference fit; The plug includes a cylindrical body and a cap located at one end of the cylindrical body. The cylindrical body is located in the cable channel, and the cap is located on the outside and abuts against the edge of the cable channel opening to prevent the plug from completely entering the channel and to facilitate the plug being pulled out when the cable channel is needed.

[0013] Furthermore, the nut is a wing nut, which facilitates quick tightening during high-altitude operations; A pressure ring is also provided between the nut and the pressure plate.

[0014] Furthermore, the outer side of the elastic seal body is provided with a circumferential flange to limit the axial displacement of the elastic seal body.

[0015] Furthermore, the pre-reserved openings in the curtain wall beams are filled with expanding foam, which forms a sealing layer with a thickness of 5-8mm, covering the bottom and sides of the elastic sealing body. The contact surface between the elastic seal and the pre-reserved opening in the crossbeam is coated with structural adhesive.

[0016] Furthermore, the end face of the elastic seal and the inner wall of the cable channel are provided with a sealing grease coating to cover the contact interface between the cable and the cable channel.

[0017] Furthermore, the outer surface of the pressure plate is covered with a decorative adhesive layer of the same color as the curtain wall beam, and the thickness of the decorative adhesive layer is 0.3-0.5mm.

[0018] The technical solution of this utility model has the following beneficial effects: 1. Significantly improved sealing performance The silicone rubber elastic sealant is precisely matched with the reserved opening in the curtain wall beam. The sealant is tightened with nuts to deform it and form an initial seal by tightly fitting it with the cable. The annular sealing ribs on the inner wall of the cable channel further enhance the contact pressure and improve water tightness through multiple contact lines.

[0019] The bottom and sides of the elastic seal are covered with a 5-8mm foam sealant layer, the contact surface is coated with structural adhesive, and the end face and inner wall of the channel are coated with a sealing grease coating, forming a multi-stage sealing system of "elastic body extrusion + adhesive sealing + grease plugging", which effectively blocks the seepage path.

[0020] Unused cable channels are sealed with interference-fit plugs. The plug cap design ensures reliable sealing while preventing the cable from sinking completely into the channel, thus balancing sealing and future reuse requirements.

[0021] 2. Improved ease of installation and operational safety Featuring a wing-shaped nut design, it can be quickly tightened without the need for professional tools, making it especially suitable for high-altitude operations. This reduces the need to carry tools, improves operational efficiency, and lowers safety hazards.

[0022] The elastic sealing body has a cuboid structure that directly fits the rectangular pre-reserved opening of the crossbeam. The circumferential flange limits axial displacement, eliminating the need for complex positioning during installation and simplifying the construction process. The pressure ring ensures that the nut pressure is evenly transmitted to the pressure plate, ensuring that the sealing body is under balanced stress.

[0023] 3. Enhanced cable adaptability and scenario compatibility The cable channel includes oval holes (for cable adapters) and round holes (for network cables), which are symmetrically distributed to flexibly match different quantities, wire diameters and types of cables without the need for additional hole enlargement or component replacement, thus reducing engineering adaptation costs.

[0024] The elastic seal is made of silicone rubber, which has good weather resistance and elasticity. It can adapt to dynamic stress caused by temperature changes, micro-displacement of structure and cable vibration, and avoid failure of the sealing layer due to rigid contact.

[0025] 4. Optimized durability and ease of maintenance Silicone rubber material is resistant to ultraviolet rays, high and low temperatures and chemical corrosion. The sealing grease coating reduces friction loss between cables and channels and extends the service life of the device. The auxiliary sealing layer formed by structural adhesive and foam enhances the overall anti-aging ability.

[0026] The plugs are designed to be detachable, allowing them to be pulled out directly when the cable channel needs to be used later without damaging the seal. The decorative adhesive layer is the same color as the curtain wall beams, ensuring a consistent appearance and facilitating localized replacement and maintenance. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present invention; Attached image captions: 1. Elastic sealing body; 3. Nut; 4. Pressure plate; 5. Bolt; 6. Oval hole; 7. Circular hole; 8. Circumferential flange. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "front," "rear," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] Combination Figure 1 As shown, this utility model provides a waterproof device for the lighting outlet of a unitized curtain wall beam, including: an elastic sealing body 1, a compression sealing component and an auxiliary sealing structure; The shape of the elastic sealing body 1 matches the shape of the reserved opening in the curtain wall beam, and it has several through cable channels. The compression sealing assembly includes a nut 3 and a pressure plate 4 disposed on the outside of the elastic sealing body 1; The compression sealing assembly includes a nut 3, a pressure plate 4, and a pre-embedded bolt 5 installed on the curtain wall beam, all located on the outside of the elastic sealing body 1. The nut 3 is threadedly connected to the pre-embedded bolt 5 of the curtain wall beam. The pressure plate 4 is located between the nut 3 and the outer wall of the elastic sealing body 1. The pressure plate 4 presses the elastic sealing body 1 into the reserved opening of the curtain wall beam through the fastening action of the nut 3. The auxiliary sealing structure consists of several plugs, which are used to seal unused cable channels.

[0033] The elastic sealing body 1 is made of silicone rubber material; The inner wall of the cable channel is provided with annularly distributed sealing ribs.

[0034] The elastic sealing body 1 is rectangular, and its shape is adapted to the rectangular hole structure of the reserved opening of the curtain wall beam. The nut 3 is located on the outside of the pressure plate 4. It is tightened by screwing the nut 3 into the bolt 5, which causes the elastic sealing body 1 to deform and fit tightly against the cable.

[0035] The cable channel includes an elliptical hole 6 and a circular hole 7; The elliptical hole 6 is used to fit cables, and the circular hole 7 is used to fit network cables. The circular hole 7 and the elliptical hole 6 are symmetrically distributed to match the number and diameter of the cables.

[0036] The plug and the cable channel are fitted with an interference fit. The plug includes a cylindrical body and a cap located at one end of the cylindrical body. The cylindrical body is located in the cable channel, and the cap is located on the outside and abuts against the edge of the cable channel opening to prevent the plug from completely entering the channel and to facilitate the plug being pulled out when the cable channel is needed.

[0037] The nut 3 is a wing nut, which is convenient for quick tightening during high-altitude operations; A pressure ring is also provided between the nut 3 and the pressure plate 4.

[0038] The elastic sealing body 1 has a circumferential flange 8 on its outer side, which is used to limit the axial displacement of the elastic sealing body 1.

[0039] The pre-reserved opening in the curtain wall beam is filled with expanding foam, which forms a sealing layer with a thickness of 5-8mm. The sealing layer covers the bottom and sides of the elastic sealing body 1. The contact surface between the elastic sealing body 1 and the reserved opening of the crossbeam is coated with structural adhesive.

[0040] The end face of the elastic seal 1 and the inner wall of the cable channel are provided with a sealing grease coating to cover the contact interface between the cable and the cable channel.

[0041] The outer surface of the pressure plate 4 is covered with a decorative adhesive layer of the same color as the curtain wall beam, and the thickness of the decorative adhesive layer is 0.3-0.5mm.

[0042] The principle of this utility model is as follows: I. Sealing mechanism: Elastic deformation and cable bonding Function of elastic seal 1 Made of silicone rubber, it has high elasticity and weather resistance. Its shape is precisely matched with the reserved opening (usually a rectangular hole) of the curtain wall beam to ensure a tight fit during initial installation.

[0043] The inner wall of the cable channel is designed with annular sealing ribs. When the cable passes through, the ribs are compressed and deformed to fill the tiny bumps on the cable surface, forming the first physical sealing barrier.

[0044] Dynamically adapt to cable changes By applying mechanical pressure to the sealing assembly, the elastic seal 1 undergoes controlled deformation, tightly wrapping cables of different diameters (such as power cables and network cables), eliminating gaps between the cables and the channel, and preventing water from seeping in along the cable surface.

[0045] II. Compression Sealing Assembly: Mechanical Pressure Enhanced Sealing Component structure and workflow Embedded bolt 5 + pressure plate 4 + nut 3: The embedded bolt 5 of the curtain wall beam is fixed, the pressure plate 4 covers the outside of the elastic sealing body 1, and the wing nut 3 generates axial pressure when tightened, which pushes the pressure plate 4 to squeeze the elastic sealing body 1.

[0046] Pressure ring design: A pressure ring is added between nut 3 and pressure plate 4 to make the pressure distribution uniform and avoid local stress concentration that could lead to seal failure.

[0047] High-altitude operations optimization The wing nut 3 is easy to tighten quickly by hand, adapting to the high-altitude installation environment of curtain walls and improving construction efficiency.

[0048] III. Auxiliary sealing structure: Reliable closure of unused channels The plug has an interference fit: the cylindrical body of the plug and the cable channel are interference fit, and the seal is formed by the elastic contraction of the silicone rubber after insertion.

[0049] Anti-slip design: The cap at the end of the plug abuts against the edge of the channel opening to prevent it from sliding in completely and to facilitate subsequent removal to activate the channel.

[0050] IV. Multiple Waterproof Reinforcement Design Interface Enhanced Sealing Foam filling: Fill the pre-reserved opening in the crossbeam with foam to form a 5-8mm thick sealing layer, covering the bottom and sides of the elastic sealing body 1, and filling the tiny gaps.

[0051] Structural adhesive coating: Structural adhesive is applied to the contact surface between the elastic sealant 1 and the crossbeam to enhance interface adhesion and sealing.

[0052] Waterproofing treatment of contact surfaces Sealing grease coating: Applied to the end face of the elastic seal 1 and the inner wall of the cable channel, covering the interface between the cable and the channel, and using the hydrophobicity of grease to block capillary water seepage.

[0053] Displacement limit protection The circumferential flange 8 on the outer side of the elastic seal 1 is engaged with the edge of the crossbeam opening to restrict axial displacement and prevent the seal from loosening due to wind vibration or temperature changes.

[0054] V. Waterproofing and Aesthetics in Harmony Decorative adhesive layer coverage: The outer surface of the pressure plate 4 is covered with a 0.3–0.5 mm thick decorative adhesive layer of the same color as the curtain wall to hide functional components and maintain the visual unity of the building facade.

[0055] VI. Summary of Working Principles This device achieves waterproofing through a comprehensive mechanism of "mechanical compression deformation sealing + multiple material filling blocking + dynamic adaptation to cables": Active sealing: The compression assembly deforms the elastomer 1, tightly wrapping the cable and filling the gap in the beam opening; Passive blocking: Foam, structural adhesive, and sealing grease are layered to fill potential water seepage paths; Flexible adaptation: The plug can open and close the channel as needed to accommodate cable increases or decreases; the raised rib design is compatible with wire diameter fluctuations; Long-term stability: Silicone rubber is resistant to aging, and the limiting structure prevents displacement, ensuring a durable seal.

[0056] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

Claims

1. A waterproof device for lighting cables exiting unitized curtain wall beams, characterized in that, include: Elastic sealing body, compression sealing assembly and auxiliary sealing structure; The shape of the elastic sealing body matches the shape of the reserved opening in the curtain wall beam, and several through cable channels are provided. The compression sealing assembly includes a nut, a pressure plate, and pre-embedded bolts on the curtain wall beams, all disposed on the outside of the elastic sealing body. The nut is threadedly connected to the pre-embedded bolt of the curtain wall beam. The pressure plate is located between the nut and the outer wall of the elastic seal body. The pressure plate presses the elastic seal body into the reserved opening of the curtain wall beam through the tightening action of the nut. The auxiliary sealing structure consists of several plugs, which are used to seal unused cable channels.

2. The waterproof device for the outgoing line according to claim 1, characterized in that, The elastic sealing body is made of silicone rubber. The inner wall of the cable channel is provided with annularly distributed sealing ribs.

3. The waterproof device for the outgoing line according to claim 1, characterized in that, The elastic sealing body is rectangular in shape, and its shape is adapted to the rectangular hole structure of the reserved opening of the curtain wall beam. The nut is located on the outside of the pressure plate. It is tightened by screwing the nut and bolt together, which deforms the elastic seal and makes it fit tightly against the cable.

4. The waterproof device for the outgoing line according to claim 1, characterized in that, The cable channel includes elliptical holes and circular holes; The elliptical holes are used to fit cables, and the circular holes are used to fit network cables. The circular and elliptical holes are symmetrically distributed to match the number and diameter of the cables.

5. The waterproof device for the outgoing line according to claim 1, characterized in that, The plug and the cable channel are fitted with an interference fit. The plug includes a cylindrical body and a cap located at one end of the cylindrical body. The cylindrical body is located in the cable channel, and the cap is located on the outside and abuts against the edge of the cable channel opening to prevent the plug from completely entering the channel and to facilitate the plug being pulled out when the cable channel is needed.

6. The waterproof device for the outgoing line according to claim 1, characterized in that, The nut is a wing nut, which is convenient for quick tightening during high-altitude operations; A pressure ring is also provided between the nut and the pressure plate.

7. The waterproof device for the outgoing line according to claim 1, characterized in that: The outer side of the elastic seal body is provided with a circumferential flange to limit the axial displacement of the elastic seal body.

8. The waterproof device for the outgoing line according to claim 1, characterized in that, The pre-reserved openings in the curtain wall beams are filled with expanding foam, which forms a sealing layer with a thickness of 5-8mm. The sealing layer covers the bottom and sides of the elastic sealing body. The contact surface between the elastic seal and the pre-reserved opening in the crossbeam is coated with structural adhesive.

9. The waterproof device for the outgoing line according to claim 1, characterized in that, The end face of the elastic seal and the inner wall of the cable channel are provided with a sealing grease coating to cover the contact interface between the cable and the cable channel.

10. The waterproof device for the outgoing line according to claim 1, characterized in that, The outer surface of the pressure plate is covered with a decorative adhesive layer of the same color as the curtain wall beam, and the thickness of the decorative adhesive layer is 0.3-0.5mm.

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