Waterproof structure of roof pipe extending out of roof

By using a combination of mortar blocks and locking mechanisms at the base of pipes exiting the roof, and using sealant to form a ring-shaped locking structure, the problem of gradual loosening and leakage under dynamic loads caused by exposed metal clamps is solved, thus improving the wind and earthquake resistance and service life of the waterproof structure.

CN224468677UActive Publication Date: 2026-07-07FUJIAN DAHUA CONSTR ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN DAHUA CONSTR ENG CO LTD
Filing Date
2025-06-16
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In existing technologies, the problem of gradual loosening and leakage under dynamic loads caused by exposed metal clamps at the base of pipes exiting the roof cannot meet long-term waterproofing requirements.

Method used

The system employs a mortar block and locking mechanism. Through a combination of toothed bands, worm gears, and sealant, a pressing button triggers a needle to puncture the capsule, causing the sealant to form a ring-shaped cured layer. This locks the worm gear and the transmission housing. The combination of the rigid support of the mortar block and the flexible wrapping of the waterproof membrane creates a waterproof system that combines rigidity and flexibility.

Benefits of technology

It effectively reduces the probability of worm gear rotation, ensures that the toothed clamps can permanently compress the waterproof membrane, improve the structure's wind and earthquake resistance, and significantly extend the service life of roof pipe waterproof joints.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to waterproof structure of roof pipeline that stretches out belongs to roof waterproof technical field, this waterproof structure of roof pipeline that stretches out, include: mortar pier and locking mechanism, the top of mortar pier is provided with waterproof volume, the locking mechanism includes transmission shell, one end of transmission shell is fixedly connected with the toothed hoop band, one end of toothed hoop band surrounds waterproof volume and is threaded out transmission shell, the inside rotationally connected with the worm that toothed hoop band engages connection of transmission shell, one end of worm is provided with installation cavity, the inside embedding of installation cavity has installed capsule, through pressing button trigger lancet puncture capsule, and sealing glue forms annular solidification layer through liquid channel, connecting cavity, makes worm and transmission shell rigid combination, this design can effectively reduce the probability that worm rotates because of vibration, ensure that toothed hoop band holds down waterproof volume for a long time, and the structure wind resistance and shock resistance are improved.
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Description

Technical Field

[0001] This utility model relates to the field of roof waterproofing technology, and in particular to a waterproof structure for pipes extending from the roof. Background Technology

[0002] The base of pipes exiting the roof becomes a high-risk area for leakage due to structural openings and dynamic loads. GB55030 requires a 20-year waterproofing lifespan, and the current process uses a sloping roof, roll material wrapping, and metal clamps for fixing, combined with flexible sealing materials to fill the gaps.

[0003] Because the metal clamps in the above-mentioned device are exposed and fixed on the outside of the roll material, they lack effective protection. When the pipeline undergoes axial displacement due to diurnal temperature differences or seasonal changes, the clamps are subjected to alternating shear stress for a long time, which leads to wear of the worm gear helical structure, reduction of preload, and eventually gradual loosening. Utility Model Content

[0004] Therefore, it is necessary to provide a waterproof structure for the pipes extending from the roof to address the problem of gradual loosening and leakage under dynamic loads caused by exposed metal clamps at the base of existing roof pipes.

[0005] A waterproof structure for a pipe extending from the roof includes a mortar block and a locking mechanism, wherein a waterproof membrane is provided on the top of the mortar block.

[0006] In one embodiment, the locking mechanism includes a transmission housing, one end of which is fixedly connected to a toothed band. One end of the toothed band wraps around a waterproof membrane and extends through the transmission housing. A worm gear, meshing with the toothed band, is rotatably connected to the inner side of the transmission housing. One end of the worm gear has an installation cavity, inside which a capsule is embedded. The capsule is filled with sealant. The other end of the transmission housing has an adjustment cavity, inside which a needle is slidably connected. The tip of the needle faces the capsule.

[0007] In one embodiment, the surface of the worm gear is provided with a liquid guiding channel communicating with the mounting cavity, and the number of the liquid guiding channels is not less than five, and the liquid guiding channels are distributed in a ring around the axis of the worm gear.

[0008] In one embodiment, the transmission housing has a connecting cavity that communicates with the fluid guiding channel, and the connecting cavity is annular in shape.

[0009] In one embodiment, the capsule has an internal gas storage chamber located on the side of the sealant facing away from the needle, and the gas storage chamber is filled with compressed gas.

[0010] In one embodiment, a button is fixedly connected to one end of the needle facing away from the capsule, and one end of the button extends through the outside of the adjustment cavity.

[0011] In one embodiment, a spring is provided inside the adjustment cavity, and the spring is disposed between the adjustment cavity and the button.

[0012] In one embodiment, the inner diameter of the spring is larger than the diameter of the needle, and the spring is sleeved on the surface of the needle.

[0013] Beneficial effects

[0014] The aforementioned waterproof structure for pipes extending from the roof,

[0015] Pressing the button triggers the needle to puncture the capsule. The sealant forms a ring-shaped cured layer through the liquid channel and connecting cavity, making the worm gear and transmission housing rigidly connected. This design can effectively reduce the probability of worm gear rotation caused by vibration, ensure that the toothed band can permanently compress the waterproof membrane, and improve the structure's wind and earthquake resistance.

[0016] The cured sealant not only locks the worm gear but also seals the internal gaps of the transmission housing, preventing water vapor erosion. Combined with the rigid support of the mortar block and the flexible wrapping of the waterproof membrane, it forms a waterproof system that combines rigidity and flexibility, significantly extending the service life of the waterproof joints of the roof pipes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial structural diagram of the locking structure in this utility model;

[0020] Figure 3 for Figure 2 Schematic sectional view along the middle AA direction;

[0021] Figure 4 for Figure 2 Schematic sectional view along the middle BB direction.

[0022] Figure label:

[0023] 100. Mortar block; 200. Waterproof membrane; 300. Locking mechanism; 310. Transmission housing; 311. Adjustment cavity; 312. Connection cavity; 320. Toothed band; 330. Worm gear; 331. Mounting cavity; 332. Liquid guiding channel; 340. Capsule; 341. Air storage cavity; 350. Needle; 360. Button; 370. Spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is 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 can mean that the first feature is 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.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0029] The following is combined Figures 1-4 This invention describes the waterproof structure of a pipe extending from the roof.

[0030] In one embodiment, the waterproof structure for the pipe extending from the roof includes a mortar block 100 and a locking mechanism 300, with a waterproof membrane 200 disposed on top of the mortar block 100.

[0031] like Figure 2 , Figure 3 and Figure 4 As shown, the locking mechanism 300 includes a transmission housing 310. One end of the transmission housing 310 is fixedly connected to a toothed band 320. One end of the toothed band 320 surrounds the waterproof membrane 200 and extends through the transmission housing 310. The inner side of the transmission housing 310 is rotatably connected to a worm gear 330 that meshes with the toothed band 320. One end of the worm gear 330 has an installation cavity 331. A capsule 340 is embedded in the installation cavity 331 and filled with sealant. The other end of the transmission housing 310 has an adjustment cavity 311. A needle 350 is slidably connected inside the adjustment cavity 311, with the tip of the needle 350 facing the capsule 340.

[0032] The worm gear 330 has a liquid guiding channel 332 communicating with the mounting cavity 331 on its surface. There are no fewer than five liquid guiding channels 332, which are arranged in a ring around the axis of the worm gear 330. The transmission housing 310 has a connecting cavity 312 communicating with the liquid guiding channel 332 inside. The connecting cavity 312 is annular in shape. The capsule 340 has a gas storage cavity 341 inside. The gas storage cavity 341 is located on the side of the sealant facing away from the needle 350 and is filled with compressed gas. A button 360 is fixedly connected to the end of the needle 350 facing away from the capsule 340. One end of the button 360 extends to the outside of the adjustment cavity 311. A spring 370 is installed inside the adjustment cavity 311 and is located between the adjustment cavity 311 and the button 360. The inner diameter of the spring 370 is larger than the diameter of the needle 350, and the spring 370 is sleeved on the surface of the needle 350.

[0033] In this embodiment, after the installer has installed the locking mechanism 300, the user only needs to press the button 360. The button 360 drives the piercing needle 350 to pierce the capsule 340. At this time, the sealant inside the capsule 340 flows out and fills the installation cavity 331, the liquid guiding channel 332 and the connecting cavity 312. After the sealant cures, it can form a disc-shaped locking structure, which can effectively prevent the worm gear 330 from rotating due to external vibration, so as to ensure that the worm gear 330 can effectively prevent the toothed band 320 from retracting. At the same time, since the sealant is cured inside the transmission housing 310, it can reduce the corrosion of the external environment, so that the sealant can more stably lock the worm gear 330 in the transmission housing 310.

[0034] The specific construction process for waterproofing structures for pipes extending from the roof is as follows:

[0035] 1. After cleaning the ground around the pipe root and the pipe surface, construct a 100mm mortar block of matching specifications using waterproof mortar.

[0036] 2. Fill the gap between the mortar block 100 and the pipe with flexible waterproof caulking compound and smooth it into a smooth slope.

[0037] 3. Cut waterproof membrane 200 with a height ≥ 250mm, evenly cut the skirt at the bottom, wrap it around the outside of the pipe and mortar block 100, and fill the gap between the joint and the skirt through the hot melt process so that the waterproof membrane 200 forms a tightly fitted cylindrical structure.

[0038] 4. Wrap the toothed band 320 around the upper part of the waterproof membrane 200, insert it into the transmission housing 310, and then rotate the worm gear 330. The toothed band 320 will be gradually tightened through the transmission housing 310 until it is slightly pressed into the surface of the waterproof membrane 200.

[0039] 5. Apply waterproof coating to pipes, waterproof membrane 200, mortar blocks 100 and surrounding ground as needed to enhance the overall environmental harmony.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A waterproof structure for pipes extending from the roof, characterized in that, include: A mortar block (100) is provided with a waterproof membrane (200) on its top. A locking mechanism (300) includes a transmission housing (310). One end of the transmission housing (310) is fixedly connected to a toothed band (320). One end of the toothed band (320) surrounds the waterproof membrane (200) and extends through the transmission housing (310). The inner side of the transmission housing (310) is rotatably connected to a worm gear (330) that meshes with the toothed band (320). One end of the worm gear (330) has an installation cavity (331). A capsule (340) is embedded in the installation cavity (331). The capsule (340) is filled with sealant. The other end of the transmission housing (310) has an adjustment cavity (311). A needle (350) is slidably connected inside the adjustment cavity (311). The tip of the needle (350) faces the capsule (340).

2. The waterproof structure for the pipe extending from the roof according to claim 1, characterized in that, The surface of the worm (330) is provided with a liquid guiding channel (332) that communicates with the mounting cavity (331). The number of liquid guiding channels (332) is not less than five, and the liquid guiding channels (332) are distributed in a ring around the axis of the worm (330).

3. The waterproof structure for the pipe extending from the roof according to claim 2, characterized in that, The transmission housing (310) has a connecting cavity (312) inside that communicates with the liquid guiding channel (332), and the connecting cavity (312) is annular in shape.

4. The waterproof structure for the pipe extending from the roof according to claim 1, characterized in that, The capsule (340) has an internal gas storage chamber (341) located on the side of the sealant facing away from the needle (350), and the gas storage chamber (341) is filled with compressed gas.

5. The waterproof structure for the pipe extending from the roof according to claim 1, characterized in that, A button (360) is fixedly connected to one end of the needle (350) facing away from the capsule (340), and one end of the button (360) extends through the outside of the adjustment cavity (311).

6. The waterproof structure for the pipe extending from the roof according to claim 5, characterized in that, A spring (370) is provided inside the adjustment cavity (311), and the spring (370) is located between the adjustment cavity (311) and the button (360).

7. The waterproof structure for the pipe extending from the roof according to claim 6, characterized in that, The inner diameter of the spring (370) is larger than the diameter of the needle (350), and the spring (370) is sleeved on the surface of the needle (350).