A waterproof construction quality inspection device

By using a waterproof construction quality inspection device to test the sealing and bonding effect of the waterproof membrane overlaps, the problem of not being able to identify minor defects during concealed acceptance is solved, thus improving the quality and safety of waterproof projects.

CN224681737UActive Publication Date: 2026-08-25吴德生
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Patent Information

Application Number
CN202522401768.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-12
Publication Date
2026-08-25
Estimated Expiration
2035-11-12

AI Technical Summary

Technical Problem

In current building waterproofing construction, concealed inspection cannot accurately identify minor bonding problems between the waterproofing layer and the structural layer, leading to the formation of water seepage channels and affecting the building's service life and safety.

Method used

A waterproof construction quality inspection device, consisting of a hollow base and an injection nozzle, is used to detect and address issues such as loose overlaps, weak adhesion, and insufficient sealing by inspecting the sealing quality and adhesion of the waterproof membrane overlaps. The hollow base of the device is fixed between the waterproof membrane and the structural layer, and the injection nozzle is detachably connected for airtightness inspection and repair.

Benefits of technology

It enables convenient inspection of the quality of waterproof membrane overlaps before concealed construction, reduces rework costs, improves the stability of waterproof project quality, and ensures building safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a waterproof construction quality overhauling device, including hollow base and injection mouth, the hollow base whole presents strip shape, the hollow base fixed mounting between waterproof volume material and structure layer, injection mouth detachable installation on the hollow base and the end of injection mouth penetrates waterproof volume material and air communication. The utility model discloses according to the selection of different position different type's overhauling device, can conveniently detect waterproof volume material lap joint's sealing quality, and timely discovers lap joint not firm, and the problem such as insufficient sealing, and overall operation is simple, is convenient for overhauling and pours the follow -up repair work of repair material, can effectively reduce the rework cost of later stage because of waterproof volume material lap joint quality problem, promotes the overall quality and stability of waterproof engineering, guarantees the use safety of building.
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Description

Technical Field

[0001] This utility model relates to the field of building equipment technology, specifically a waterproof construction quality inspection device. Background Technology

[0002] In the field of waterproofing construction, the concealed inspection after the waterproofing layer is completed is a routine step to ensure project quality. However, this inspection method has significant limitations. Conventional concealed inspections mainly rely on visual inspections and localized sampling tests, making it difficult to accurately identify subtle localized bonding problems between the waterproofing layer and the structural layer. These hidden defects are not easily detected during the construction phase. Once a connected seepage path forms within the waterproofing layer, moisture can easily penetrate along this path during later use, leading to waterproofing failure. This, in turn, causes a series of quality problems in the building structure, such as dampness, mold, and corrosion, affecting the building's service life and safety.

[0003] In engineering practice, waterproofing leaks exhibit clear high-incidence locations and causes. Common leakage paths are mainly concentrated at corners, edges, and overlaps of waterproofing membranes. These areas, due to their complex structures and difficult construction, become weak points in waterproofing. Specifically, the formation of seepage pathways mainly falls into the following categories: First, weak adhesion between the waterproofing layer and the structural substrate, resulting in localized voids or detachment, creating potential water flow channels; second, failure to properly press the edges during waterproofing membrane overlap construction, leading to insufficient sealing at the overlap; and third, improper heating temperature or time control during the construction of heat-melt waterproofing membranes, resulting in incomplete melting of the membrane and ineffective fusion of the overlap, ultimately forming a continuous leakage channel. Existing conventional acceptance methods cannot detect such subtle defects in time before concealment, necessitating an effective solution for leak detection before concealed construction. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a waterproof construction quality inspection device that can conveniently detect the sealing quality of the waterproof membrane overlap and the bonding effect of the waterproof layer, promptly identify problems such as loose overlap, weak bonding, and insufficient sealing, and is simple to operate, facilitating subsequent processing after inspection. This effectively reduces rework costs caused by waterproof membrane overlap quality issues, improves the overall quality stability of waterproof projects, and ensures building safety.

[0005] To achieve its technical objectives, this utility model adopts the following technical solution:

[0006] A waterproof construction quality inspection device includes a hollow base and an injection nozzle. The hollow base is generally elongated and is fixedly installed between the waterproof membrane and the structural layer. The injection nozzle is detachably installed on the hollow base, and its end penetrates the waterproof membrane and is in communication with the air.

[0007] Preferably, the hollow base is a planar hollow base installed on a planar structural layer. The longitudinal section of the planar hollow base is a trapezoid with a missing bottom, and the laying direction of the planar hollow base is perpendicular to the laying direction of the waterproof membrane. The planar hollow base includes a first mounting plate at the top and support plates on both sides. The first mounting plate is a horizontal straight plate, and the upper end of the support plate is fixedly connected to the first mounting plate.

[0008] More preferably, the support plate includes a first support plate and a second support plate, the first support plate and the second support plate are arranged adjacent to each other and repeatingly on both sides of the first mounting plate along the length direction of the hollow base in the plane, and the side walls of the first support plate and the second support plate are fixedly connected to each other.

[0009] More preferably, the first support plate is a curved plate, the second support plate is a straight plate, and the included angle between the two ends of the first support plate is less than 180 degrees; the first support plate, the second support plate and the first mounting plate are integrated into one piece.

[0010] More preferably, a first channel is formed between the lower section of the first support plate and the lower section of the second support plate, the first channel being used for gas tightness inspection and infusion repair.

[0011] Preferably, the hollow base is a corner hollow base installed at the inside corner of the structural layer. The corner hollow base includes a base plate, a support partition, and a second mounting plate. The longitudinal section of the base plate is an arc with a near right angle. The base plate includes a bent section in the middle and straight sections on both sides. The upper surface of the straight sections is repeatedly provided with the support partition along the length direction of the base plate and at intervals. The support partition is perpendicular to the length direction of the corresponding straight section and the base plate, respectively.

[0012] More preferably, the second mounting plate has a groove in the middle that matches the bent section, the upper surface of the bent section has a threaded seat, the bottom of the groove has a threaded hole corresponding to the position of the threaded seat, the second mounting plate and the base plate are fixedly connected by bolts that pass through the threaded seat and the threaded hole, the side wall of the groove abuts against one side of the support partition, and the two sides of the second mounting plate abut against the other side of the support partition.

[0013] More preferably, a second channel is formed between the second mounting plate and the base plate, the second channel being used for gas tightness inspection and fluid repair.

[0014] Preferably, the injection nozzle includes a pagoda head, a sealing ring, and a locking nut. The lower end of the pagoda head has threads on its outer wall, and the lower end of the pagoda head is inserted into the hollow base and threadedly fitted with the locking nut.

[0015] More preferably, a sealing ring is fitted onto the threaded section at the lower end of the pagoda head, and the sealing ring abuts against both the pagoda head and the hollow base. The sealing ring is used to ensure the airtightness of the connection between the pagoda head and the hollow base.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention enables convenient inspection of the sealing quality of the waterproof membrane overlap and the adhesion between the waterproof layer and the bonding surface before waterproof construction is concealed. It can promptly detect problems such as loose overlap, weak adhesion, and insufficient sealing, and confirm the existence of leakage paths before concealment. If leakage paths are found, they can be treated, ensuring the waterproof reliability of the waterproof membrane overlap from the source and reducing the risk of moisture damage to the building structure.

[0018] This utility model is easy to operate, can accurately target the overlapping area of ​​waterproof membrane for quality inspection, and facilitates subsequent processing after inspection. It effectively reduces rework costs caused by waterproof membrane overlapping quality problems, improves the overall quality stability of waterproof projects, and ensures the safety of building use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the planar hollow base in Embodiment 1;

[0020] Figure 2 yes Figure 1 The left view;

[0021] Figure 3 This is a schematic diagram of the overall structure of the maintenance device involved in Embodiment 2;

[0022] Figure 4 yes Figure 3 The left view;

[0023] Figure 5 This is a three-dimensional structural diagram of the base plate in Example 2;

[0024] Figure 6 This is a three-dimensional structural diagram of the mounting plate in Example 2;

[0025] Figure 7 This is a structural cutaway view of the injection nozzle in this utility model.

[0026] Figure label:

[0027] 1. Flat hollow base; 101. First mounting plate; 102. First support plate; 103. Second support plate; 104. First channel;

[0028] 2. Corner hollow base; 201. Base plate; 202. Second mounting plate; 203. Second channel; 204. Support partition; 205. Threaded seat; 206. Bending section; 207. Straight section; 208. Groove; 209. Threaded hole;

[0029] 3. Injection nozzle; 301. Pagoda head; 302. Sealing ring; 303. Locking nut. Detailed Implementation

[0030] In the description of this utility model, it should be noted that the terms "upper / lower," "front / rear," "inner / outer," and "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, 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. Furthermore, the terms "first" and "second" are only used to more clearly correspond to different connection positions in the description, and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within the components of a compatible model. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, unless otherwise specified, all components used in this application are commercially available components, and the connection between different components can be achieved through conventional technical means.

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] This embodiment provides a waterproof construction quality inspection device, including a hollow base and an injection nozzle 3. The hollow base is generally elongated and is fixedly installed between the waterproof membrane and the structural layer. The hollow base has a channel inside that allows air or liquid to pass through. The injection nozzle 3 is detachably installed on the hollow base and its end passes through the waterproof membrane and is connected to the air.

[0035] It should be noted that in actual production operations, waterproof coatings may be selected instead of waterproof membranes for application based on actual needs. In this case, the surface of the hollow base needs to be provided with isolation materials (such as plastic pads) to ensure that the waterproof layer forms a whole.

[0036] Meanwhile, the hollow base has multiple injection holes pre-drilled to fit the injection nozzle 3; in actual field use, the other pre-drilled injection holes where the injection nozzle 3 is not installed should be tightly sealed with waterproof membrane. The number of injection nozzles 3 needs to be flexibly installed according to the site conditions to facilitate air injection and subsequent venting and repair.

[0037] In this embodiment, the hollow base is specifically a planar hollow base 1 installed on the planar structural layer. The longitudinal section of the planar hollow base 1 is a trapezoid with a missing bottom, and the laying direction of the planar hollow base 1 is perpendicular to the laying direction of the waterproof membrane. In actual manufacturing, it can be made into standard sections as needed and spliced ​​on site to achieve a suitable length. The planar hollow base 1 includes a first mounting plate 101 at the top and support plates on both sides. Specifically, the first mounting plate 101 is a horizontal straight plate, and the upper ends of the support plates on both sides are fixedly connected to the edge of the first mounting plate 101.

[0038] It should be noted that the aforementioned trapezoid with missing base refers specifically to the shape obtained by removing the lower base from a trapezoid.

[0039] As a better option, such as Figure 1 As shown, the support plate includes a first support plate 102 and a second support plate 103. Specifically, the first support plate 102 and the second support plate 103 are arranged adjacently and repeatedly on both sides of the first mounting plate 101 along the length direction of the planar hollow base 1, and the side walls of the first support plate 102 and the second support plate 103 are fixedly connected to each other; specifically, as shown... Figure 2 As shown, the first support plate 102 is a curved plate, the second support plate 103 is a straight plate, and the included angle between the two ends of the first support plate 102 is less than 180 degrees; the first support plate 102, the second support plate 103 and the first mounting plate 101 are integrated into one design.

[0040] As a preferred embodiment, a first channel 104 is formed between the lower section of the first support plate 101 and the lower section of the second support plate 102. The first channel 104 is used for gas tightness inspection and liquid repair. Specifically, the specific shapes of the first support plate 102 and the second support plate 103 are fully considered in actual production and use. The formed first channel 104 allows the gas or liquid injected from the injection nozzle 3 to diffuse outward more quickly, thereby improving the efficiency of air tightness inspection of the waterproof membrane laying quality and the efficiency of subsequent repair.

[0041] Preferably, the injection nozzle 3 includes a pagoda head 301, a sealing ring 302, and a locking nut 303. Specifically, the lower outer wall of the pagoda head 301 is threaded, and the lower end of the pagoda head 301 passes through the mounting hole on the first mounting plate 101 and is inserted into the planar hollow base 1. The threaded section at the lower end of the pagoda head 301 is threadedly fitted with the locking nut 303, which abuts against the bottom surface of the first mounting plate 101. By rotating the locking nut 303, the injection nozzle 3 is fixed on the first mounting plate 101. Preferably, the threaded section of the pagoda head 301 is fitted with the sealing ring 302, which abuts against the top surface of the first mounting plate 101, thereby ensuring the airtightness of the connection between the pagoda head 301 and the planar hollow base 1.

[0042] Specific operating instructions:

[0043] The device involved in this embodiment is assembled into multiple devices of suitable length for single-path installation, and installed between the waterproof membrane and the structural layer at appropriate intervals. The direction of the hollow base 1 is required to be perpendicular to the direction of the waterproof membrane laying, and the hollow base 1 and the waterproof membrane are in contact. The splicing length of the single-path device is determined according to the total length of the short side of the waterproof membrane planar laying at the location of the single-path device. Moreover, the multiple devices are distributed at intervals and are not interconnected. After the waterproof construction is completed, dry gas is introduced into the single-path injection nozzle 3 and an appropriate pressure is maintained. Other unused injection nozzles 3 are temporarily sealed or pressure gauges are installed. If there are obvious air leaks that make it difficult to maintain constant pressure, the leaks are treated. After maintaining constant pressure for a certain period of time, the condition of the waterproof membrane is observed, and the bonding strength is judged. If there are large-area bulges, rework is required. After rework, the above-mentioned testing should be continued after re-treatment until the bonding strength of the entire device area is qualified.

[0044] Once the bonding strength meets the requirements, the pathway locating process is performed. A pressure gauge is installed on each injection nozzle 3. During testing, dry air is injected into each injection nozzle 3 sequentially, and the pressure gauge readings connected to the injection nozzles 3 of other hollow base 1s are observed to determine if the pathway locating changes. The located pathways are marked. Verification materials such as 191 resin are poured into the injection nozzle 3 of the hollow base 1 at one end of the pathway. A vacuum is then created at the injection nozzles 3 of other devices connected to this pathway, with the injection pressure slightly lower than the vacuum pressure to maintain a negative pressure in the pathway. This process continues until the other injection nozzles 3 are filled with 191 resin or other materials, indicating that the pathway is filled. This step is repeated until all other pathways are filled. Finally, after the resin has solidified, the injection nozzles 3 are sealed with waterproof material. This process does not affect normal construction.

[0045] Example 2

[0046] Unlike Embodiment 1, in this embodiment, the hollow base is specifically a corner hollow base 2 installed at the concave corner of the structural layer, such as... Figures 3-6 As shown, the hollow corner base 2 includes a base plate 201, a support partition 204, and a second mounting plate 202. The longitudinal section of the base plate 201 is an arc with a near right angle. The base plate 201 includes a bent section 206 in the middle and straight sections 207 on both sides. The upper surface of the straight section 207 is repeatedly provided with support partitions 204 along the length direction of the base plate 201 and at intervals. The support partitions 204 are perpendicular to the length direction of the corresponding straight section 207 and the base plate 201, respectively.

[0047] During installation, the bent section 206 of the corner hollow base 2 corresponds to the inside corner (right angle) of the structural layer. Connect them into a loop or arrange them in sections according to the actual layout of the site. During waterproofing, cover and attach the waterproof membrane to the corner hollow base 2, and expose the end of the injection nozzle 3 through the waterproof membrane. Other reserved injection ports without installed injection nozzles 3 should be tightly adhered with waterproof membrane. The number of injection nozzles 3 can be flexibly reserved according to the needs of the site.

[0048] The second mounting plate 202 has a groove 208 in the middle that matches the bent section 206. The upper surface of the bent section 206 has a threaded seat 205. The bottom of the groove 208 has a threaded hole 209 that corresponds to the position of the threaded seat 205. The second mounting plate 202 and the base plate 201 are fixedly connected by bolts that pass through the threaded seat 205 and the threaded hole 209. The side wall of the groove 208 abuts against one side of the support partition 204, and the two sides of the second mounting plate 202 abut against the other side of the support partition 204. A second channel 203 is formed between the second mounting plate 202 and the base plate 201.

[0049] The lower end of the pagoda head 301 passes through the mounting hole on the second mounting plate 202 and is inserted into the corner hollow base 2, so that the locking nut 303 and the bottom surface of the second mounting plate 202 abut together, and the sealing ring 302 and the top surface of the second mounting plate 202 abut together, thereby ensuring the airtightness of the connection between the pagoda head 301 and the corner hollow base 2.

[0050] The installation positions of the related devices in this embodiment and Embodiment 1 are different, but the overall operation method is the same; when using the planar hollow base 1 and the corner hollow base 2 at the same time, the two should be kept from interfering with each other.

[0051] Although the embodiments of this utility model have been described in the specification, these embodiments are merely illustrative and should not limit the scope of protection of this utility model. Various omissions, substitutions, and modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A waterproof construction quality inspection device, characterized in that, It includes a hollow base and an injection nozzle. The hollow base is elongated and is fixedly installed between the waterproof membrane and the structural layer. The injection nozzle is detachably installed on the hollow base and its end penetrates the waterproof membrane and is in communication with the air.

2. The waterproof construction quality inspection device as described in claim 1, characterized in that, The hollow base is a planar hollow base installed on a planar structural layer. The longitudinal section of the planar hollow base is a trapezoid with a missing bottom, and the laying direction of the planar hollow base is perpendicular to the laying direction of the waterproof membrane. The planar hollow base includes a first mounting plate at the top and support plates on both sides. The first mounting plate is a horizontal straight plate, and the upper end of the support plate is fixedly connected to the first mounting plate.

3. The waterproof construction quality inspection device as described in claim 2, characterized in that, The support plate includes a first support plate and a second support plate. The first support plate and the second support plate are arranged adjacent to each other and repeatingly on both sides of the first mounting plate along the length direction of the hollow base in the plane. The side walls of the first support plate and the second support plate that are close to each other are fixedly connected.

4. The waterproof construction quality inspection device as described in claim 3, characterized in that, The first support plate is a curved plate, the second support plate is a straight plate, and the included angle between the two ends of the first support plate is less than 180 degrees; the first support plate, the second support plate and the first mounting plate are integrated into one piece.

5. The waterproof construction quality inspection device as described in claim 4, characterized in that, A first channel is formed between the lower section of the first support plate and the lower section of the second support plate. The first channel is used for gas tightness inspection and infusion repair.

6. The waterproof construction quality inspection device as described in claim 1, characterized in that, The hollow base is a corner hollow base installed at the inside corner of the structural layer. The corner hollow base includes a base plate, a support partition, and a second mounting plate. The longitudinal section of the base plate is an arc with a near right angle. The base plate includes a bent section in the middle and straight sections on both sides. The upper surface of the straight sections is repeatedly provided with the support partition along the length direction of the base plate and at intervals. The support partition is perpendicular to the length direction of the corresponding straight section and the base plate, respectively.

7. A waterproof construction quality inspection device as described in claim 6, characterized in that, The second mounting plate has a groove in the middle that matches the bent section. The upper surface of the bent section has a threaded seat. The bottom of the groove has a threaded hole corresponding to the position of the threaded seat. The second mounting plate and the base plate are fixedly connected by bolts that pass through the threaded seat and the threaded hole. The side wall of the groove abuts against one side of the support partition, and both sides of the second mounting plate abut against the other side of the support partition.

8. The waterproof construction quality inspection device as described in claim 7, characterized in that, A second channel is formed between the second mounting plate and the base plate, and the second channel is used for gas supply airtightness inspection and infusion repair.

9. A waterproof construction quality inspection device as described in claim 1, characterized in that, The injection nozzle includes a pagoda head, a sealing ring, and a locking nut. The lower end of the pagoda head has threads on its outer wall, and the lower end of the pagoda head is inserted into the hollow base and threadedly fitted with the locking nut.

10. A waterproof construction quality inspection device as described in claim 9, characterized in that, The lower end of the pagoda head is provided with a threaded section and a sealing ring is fitted on it. The sealing ring abuts against the pagoda head and the hollow base respectively. The sealing ring is used to ensure the airtightness of the connection between the pagoda head and the hollow base.