Quick-mounting waterproof sleeve for pipeline flame arrestor

Abstract

The application provides a quick installation type waterproof sleeve of a pipeline fire barrier, which is installed outside a pipeline and comprises a pre-buried sleeve body and a fire barrier arranged in sequence from top to bottom. The pre-buried sleeve body is a hollow tubular structure with an outer diameter larger than that of the pipeline to be installed, so as to ensure that the pipeline can pass through smoothly. The pre-buried sleeve body is located on the outer wall of a concrete floor slab, and a waterproof wing ring is fixed outside the middle part of the pre-buried sleeve body to enhance the tightness of the sleeve and the concrete and to play a basic waterproof role. A horizontal wing ring is arranged outside the lower end of the pre-buried sleeve body, and at least two pre-buried nuts are firmly integrated in the circumferential direction below the waterproof wing ring. The threaded holes of the pre-buried nuts are parallel to the axis of the pre-buried sleeve body and face the lower end outside. The application can greatly save the labor cost and time cost of later installation, avoid the repair cost and potential risks caused by drilling failure, and has very outstanding comprehensive economic benefits, and is beneficial to promoting the standardization and industrialization process of building construction.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a quick-install waterproof sleeve for pipe fire arresters. Background Technology

[0002] In modern building fire safety regulations, especially for high-rise residential and public buildings, fire collars must be installed where pipes penetrate floor slabs to prevent the spread of flames and high-temperature smoke during a fire. Traditional fire collar installation methods suffer from several significant technical drawbacks and efficiency bottlenecks. First, the traditional method typically involves installing the fire collar after the concrete floor slab has been poured and the formwork removed. At this stage, workers must locate and drill holes in the hard concrete floor slab to install expansion bolts for fixing the fire collar. This drilling process is not only labor-intensive and inefficient, heavily reliant on manual skills, but also highly susceptible to drilling failure, concrete chipping, and even damage to the internal steel reinforcement structure of the floor slab due to inaccurate positioning or improper operation, affecting building safety. Second, the dust pollution generated by post-drilling is severe, failing to meet the requirements of green construction. Furthermore, drilling is extremely inconvenient and poses safety hazards in complex spaces with existing decoration or other pipelines and equipment. Third, because it is a post-installation fixation, the tightness of the fit between the fire collar and the concrete floor slab is difficult to guarantee, potentially leaving micro-gaps that affect the final fire-resistant seal. Finally, the entire construction process could not be synchronized with the main structure construction, forming an independent and additional work phase, which lengthened the overall construction period and increased labor and management costs. Therefore, existing technologies urgently need an innovative solution that can achieve rapid, accurate, and secure installation of fire collars, seamlessly integrate with the main structure construction, and fundamentally avoid subsequent drilling operations. Summary of the Invention

[0003] To address the above problems, this invention provides a quick-install waterproof sleeve for pipe flame arresters.

[0004] The specific plan is as follows: A quick-install waterproof sleeve with a fire-arresting ring for pipes is installed outside the pipe. It includes an embedded sleeve body and a fire-arresting ring arranged at the top and bottom. The embedded sleeve body is a hollow tubular structure with an outer diameter larger than that of the pipe to be installed, to ensure that the pipe can pass through smoothly. The embedded sleeve body is located on the outer wall of a concrete floor slab. A waterproof wing ring is fixedly installed on the middle part to enhance the tightness of the bond between the sleeve and the concrete and to play a basic waterproof role. A horizontal wing ring is provided at the lower end. The horizontal wing ring is located below the waterproof wing ring and at least two (usually three or four symmetrically distributed) embedded nuts are firmly integrated along the circumference. The axis of the threaded hole of the embedded nut is parallel to the axis of the embedded sleeve body and faces outward at the lower end.

[0005] Furthermore, the fire arrestor ring is fixed to the lower end of the pre-embedded sleeve body by fixing screws, and the fixing screws pass through the hole at the upper end of the fire arrestor ring and are fixed to the pre-embedded nut.

[0006] Furthermore, the horizontal wing ring is welded and fixed to the pre-embedded nut, and both the horizontal wing ring and the waterproof wing ring are welded and fixed to the pre-embedded sleeve body.

[0007] Furthermore, the pre-embedded nut is fixed on the construction template during the pre-embedded construction stage. After demolding, the pre-embedded nut is used to install the fire arrestor ring, and the position of the pre-embedded nut corresponds to the position of the fixing screw of the fire arrestor ring.

[0008] The beneficial effects of this invention are as follows: This invention, through its innovative design of "pre-embedded integration, immediate demolding, and direct fastening," brings multiple significant advantages and positive effects. First, the most direct benefit is a substantial increase in construction efficiency and convenience. It completely eliminates the time-consuming and labor-intensive concrete drilling step of traditional processes, simplifying the installation of the fire arrestor ring from a complex, highly skilled post-construction task to a simple assembly operation similar to tightening a screw. This increases construction speed several times over and significantly reduces labor intensity and skill requirements. Second, this solution ensures superior installation quality and reliability. The position of the pre-embedded nut is precisely fixed by the template before concrete pouring, avoiding potential positioning deviations that may occur during later drilling and ensuring absolute accuracy in the fire arrestor ring's installation position. Simultaneously, because the screw is directly screwed into the nut pre-embedded in the concrete, its pull-out force and tightening force are far superior to post-installed expansion bolts, resulting in a more robust and reliable connection. The fire arrestor ring can achieve a seamless and tight fit with the bottom surface of the floor slab, effectively improving the integrity of the fireproof sealing. Third, this solution possesses excellent structural safety and environmental friendliness. It completely avoids structural damage to hardened concrete floor slabs, protects the internal steel reinforcement and overall load-bearing capacity, and eliminates safety hazards caused by improper drilling. Finally, from a life-cycle cost perspective, although this invention adds a small amount of cost to the pre-embedded sleeve, it significantly reduces labor and time costs during later installation, and avoids repair costs and potential risks caused by drilling failures. The overall economic benefits are outstanding, and it is conducive to promoting the standardization and industrialization of building construction. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the present invention.

[0010] Figure 2 This is a cross-sectional view of the assembled version of the present invention.

[0011] List of reference numerals in the attached diagram: 1-Pipe, 2-Fire arrestor ring, 3-Fixing screw, 4-Horizontal wing ring, 5-Embedded nut, 6-Concrete floor slab, 7-Waterproof wing ring, 8-Embedded sleeve body. Detailed Implementation

[0012] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0013] As shown in the figure, the present invention provides a quick-install waterproof sleeve with a fire arrestor ring for pipes. It is installed outside the pipe 1 and includes a pre-embedded sleeve body 8 and a fire arrestor ring 2 arranged at the top and bottom. The pre-embedded sleeve body 8 is a hollow tubular structure with an outer diameter larger than the outer diameter of the pipe 1 to be installed, so as to ensure that the pipe can pass through smoothly. The pre-embedded sleeve body 8 is located on the outer wall of the concrete floor slab 6. A waterproof wing ring 7 is fixedly installed on the middle part to enhance the tightness of the connection between the sleeve and the concrete and play a basic waterproof role. A horizontal wing ring 4 is provided on the lower end. The horizontal wing ring 4 is located below the waterproof wing ring 7 and at least two (usually three or four symmetrically distributed) pre-embedded nuts 5 are firmly integrated along the circumferential direction. The axis of the threaded hole of the pre-embedded nut 5 is parallel to the axis of the pre-embedded sleeve body 8 and faces outward at the lower end.

[0014] In this embodiment, the fire arrestor ring 2 is fixed to the lower end of the pre-embedded sleeve body 8 by fixing screws 3. The fixing screws 3 pass through the hole at the upper end of the fire arrestor ring 2 (the outer side of the upper end of the fire arrestor ring is a protruding annular edge with holes on the annular edge) and are fixed to the pre-embedded nut 5.

[0015] In this embodiment, the horizontal wing ring 4 is welded and fixed to the pre-embedded nut 5, and both the horizontal wing ring 4 and the waterproof wing ring 7 are welded and fixed to the pre-embedded sleeve body 8.

[0016] In this embodiment, the pre-embedded nut 5 is fixed on the construction template during the pre-embedded construction stage. After demolding, the pre-embedded nut 5 is used to install the fire arrestor ring 2. The position of the pre-embedded nut 5 corresponds to the position of the fixing screw 3 of the fire arrestor ring 2.

[0017] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A quick-install waterproof sleeve for fire arresters on pipes, installed outside pipes (1), characterized in that, The device includes an embedded sleeve body (8) and a fire-resistant ring (2) set at the top and bottom. The embedded sleeve body (8) is a hollow tubular structure with an outer diameter larger than that of the pipe (1) to be installed. The embedded sleeve body (8) is located on the outer wall of the concrete floor slab (6). A waterproof wing ring (7) is fixedly installed in the middle and a horizontal wing ring (4) is provided at the lower end. The horizontal wing ring (4) is located below the waterproof wing ring (7) and at least two embedded nuts (5) are firmly integrated along the circumferential direction. The axis of the threaded hole of the embedded nut (5) is parallel to the axis of the embedded sleeve body (8) and faces the lower end outward.

2. The quick-install waterproof sleeve with a fire-retardant ring for pipelines according to claim 1, characterized in that, The fire arrestor ring (2) is fixed to the lower end of the pre-embedded sleeve body (8) by a fixing screw (3). The fixing screw (3) passes through the hole at the upper end of the fire arrestor ring (2) and is fixed to the pre-embedded nut (5).

3. The quick-install waterproof sleeve with a fire-retardant ring for pipelines according to claim 1, characterized in that, The horizontal wing ring (4) is welded and fixed to the pre-embedded nut (5), and both the horizontal wing ring (4) and the waterproof wing ring (7) are welded and fixed to the pre-embedded sleeve body (8).

4. The quick-install waterproof sleeve with a fire-retardant ring for pipelines according to claim 1, characterized in that, The pre-embedded nut (5) is fixed on the construction template during the pre-embedded construction stage. After the template is removed, the pre-embedded nut (5) is used to install the fire arrestor ring (2). The position of the pre-embedded nut (5) corresponds to the position of the fixing screw (3) of the fire arrestor ring (2).

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