House building anti-leakage water collecting and draining structure

By setting up a water collection and drainage mechanism in the expansion joint, the problem of difficulty in positioning after damage to the water stop is solved, the timely discharge of rainwater and the accurate positioning of leakage points are achieved, and the maintenance efficiency and the service life of the structure are improved.

CN120273491AActive Publication Date: 2025-07-08YANGTZE UNIVERSITY
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Patent Information

Application Number
CN202510763973.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-10
Publication Date
2025-07-08
Estimated Expiration
2045-06-10

AI Technical Summary

Technical Problem

In the prior art, the water stop at the expansion joint is difficult to be discovered and positioned in time after damage, resulting in low maintenance efficiency and ineffective prevention of rainwater leakage and structural damage.

Method used

The water collection and drainage mechanism is set up in the expansion joint, including a pressure drainage, a water collector, a drainage pipe and a retention mechanism. Through the drainage, interception and drainage design, the directional discharge and position confirmation of rainwater is achieved, providing a continuous and effective drainage channel, and the leakage point is assisted by magnetic suction blocks.

Benefits of technology

It realizes the timely discharge of rainwater, improves the targeted and efficient maintenance, reduces maintenance costs, and extends the service life of the structure.

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Abstract

The invention discloses a house building anti-seepage water collecting and draining structure which comprises two floors, an expansion joint between the floors and a water stop belt installed on the expansion joint, an anti-seepage structure tightly connected with the expansion joint is arranged in the area, located on the inner side of the water stop belt, in the expansion joint, and the anti-seepage structure is composed of a plurality of water collecting and draining mechanisms. The water collecting and draining mechanisms are tightly connected, so that leaked rainwater selectively flows into one group of water collecting and draining mechanisms; the anti-seepage structure is simple in structure and reasonable in design, through the design, when the water stop belt of the expansion joint leaks, rainwater can be directly drained through the anti-seepage structure, and it is avoided that water accumulates in the structure to cause further damage; meanwhile, as the water collecting and draining mechanism is composed of a plurality of units, maintenance personnel can accurately judge the leakage position of the water stop belt according to the water flowing condition of each water collecting unit, and positioning type maintenance is achieved, so that the pertinence and efficiency of maintenance are remarkably improved, the maintenance cost is reduced, and the service life of the structure is prolonged.
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Description

Technical Field

[0001] The present invention relates to the technical field of expansion joint waterproofing, and specifically to a building anti-leakage water collection and drainage structure. Background Technique

[0002] In building structures, expansion joints are necessary gaps between large-volume concrete structures such as floor slabs and walls to cope with temperature changes, settlement differences, and structural deformations. Their setting plays an important role in preventing structural cracking and extending the service life of buildings. To prevent rainwater, surface water, or other liquids from seeping into the expansion joints, waterstops are usually installed in the expansion joints. Waterstops are often made of rubber or PVC materials, with certain elasticity and sealing performance, and can maintain the waterproof function when the building undergoes minor displacements.

[0003] Deficiencies of the prior art: During actual use, due to factors such as the thermal expansion and contraction of the building, uneven settlement of the foundation, improper construction and installation, or material aging, the waterstop at the expansion joint may be damaged. Once the waterstop fails, rainwater may seep into the building structure along the gap, causing problems such as wetness, peeling, or even corrosion of steel bars in the lower part of the floor slab or wall. However, since the waterstop is buried inside the expansion joint, its actual working state is difficult to directly observe. Especially after leakage occurs, it is impossible to accurately determine which section of the waterstop is damaged, and it is impossible to perform targeted local repairs, resulting in low maintenance efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a building anti-leakage water collection and drainage structure to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A building anti-leakage water collection and drainage structure includes two floor slabs, an expansion joint between the floor slabs, and a waterstop installed on the expansion joint. An anti-leakage structure is provided in the area inside the expansion joint and on the inner side of the waterstop, and is closely connected thereto. The anti-leakage structure is composed of several sets of water collection and drainage mechanisms, and the water collection and drainage mechanisms are closely connected to allow the leaked rainwater to flow into the water collection and drainage mechanisms.

[0006] Through the above design, when the waterstop at the expansion joint leaks, rainwater can be directly discharged through the anti-leakage structure, avoiding the accumulation of moisture inside the structure and causing further damage. At the same time, since the water collection and drainage mechanism is composed of multiple units, maintenance personnel can accurately judge the leakage location of the waterstop through the water flow situation of each water collection unit, realizing positioning maintenance, thereby significantly improving the pertinence and efficiency of maintenance, reducing maintenance costs, and extending the service life of the structure.

[0007] Preferably, the water collection and drainage mechanism includes: A pair of pressing rows, the pressing rows are arranged inside the expansion joint and are closely attached to the inner side of the water stop belt; Several water collectors, the water collectors are arranged in sequence along the length direction of the pressing row, the water collectors are fixedly connected to each other, a first drainage part is arranged on each water collector in the direction towards the water stop belt, and the first drainage parts between the water collectors are closely connected, so that the leaked rainwater selectively flows into one of the water collectors, and a drainage hole is opened on each water collector; A drain pipe, the drain pipe is communicated with each drainage hole and is used for the one-time confirmation of the leakage position of the water stop belt; An interception mechanism, the interception mechanism is arranged in each water collector and is used for the secondary confirmation of the leakage position of the water stop belt.

[0008] Preferably, a water collecting bottle is arranged at the drainage end of each drain pipe, an observation window for observing the internal water level is arranged on the water collecting bottle, and an external drainage port is arranged at the part of the water collecting bottle close to the water inlet.

[0009] Preferably, the interception mechanism includes: An annular groove, the annular groove is arranged in the water collector and is located around the drainage hole, and a second drainage part is arranged between the annular groove and the drainage hole; An interception cylinder, the interception cylinder is movably arranged in the annular groove, a plurality of through holes are opened on the interception cylinder, when the end face of the interception cylinder is attached to the bottom of the annular groove, the through holes are hidden in the annular groove, and an interception area is formed between the cylinder wall of the interception cylinder and the second drainage part; A diversion plate, the diversion plate is fixed on the interception cylinder through a support rod and is used for guiding the leaked rainwater to be discharged to the interception area; A traction mechanism, the traction mechanism is arranged on the interception cylinder and / or the diversion plate and is used for guiding the interception cylinder to move along the axial direction of the annular groove.

[0010] Preferably, the traction mechanism is a magnetic attraction block, and the magnetic attraction block is arranged on the interception cylinder and / or the diversion plate.

[0011] Through the cooperation of the above water collector and the interception mechanism, when the leaked rainwater flows in, partial water volume can be intercepted, and at the same time, the rainwater exceeding the interception capacity is allowed to continue to drain smoothly, so as to provide a continuous and effective drainage channel and avoid structural water accumulation; at the same time, through the rainwater intercepted in the interception area, maintenance personnel can control the upward movement of the interception cylinder by means of an external magnetic attraction block, so that the rainwater is discharged through the through holes, thereby observing the water collection or water discharge condition below, further confirming whether the water stop belt is damaged at this place, realizing the secondary positioning of the leakage point, effectively reducing the maintenance range, and improving the maintenance efficiency and accuracy.

[0012] Preferably, the end of the intercepting cylinder and the bottom of the annular groove are provided with a convex part and a concave part that match each other.

[0013] Preferably, marks are provided on the floor slab, and the marks respectively correspond to the installation positions of the drain pipes, and are used to indicate the specific positions of the drainage channels connected thereto.

[0014] Preferably, the connecting parts between adjacent water collectors are arranged in a straight line. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the present invention after removing the water stop belt; Figure 3 is the present invention Figure 1 The enlarged view at A in; Figure 4 is a sectional view of the water collection and drainage mechanism after installation of the present invention; Figure 5 is a schematic diagram of the structure of a single group of water collection and drainage mechanisms of the present invention; Figure 6 is a schematic diagram of the structure of the intercepting mechanism of the present invention; Figure 7 is a schematic diagram of the structure of the intercepting mechanism when installed inside the water collector of the present invention; Figure 8 is a schematic diagram of the structure of the water collection bottle of the present invention; Figure 9 is a schematic diagram of the internal structure of the water collection bottle of the present invention.

[0016] In the figure: 1, floor slab; 2, expansion joint; 3, water stop belt; 4, anti-leakage structure; 5, water collection and drainage mechanism; 501, pressure discharge; 502, water collector; 503, first drainage part; 504, drain hole; 505, drain pipe; 506, intercepting mechanism; 5061, annular groove; 5062, second drainage part; 5063, intercepting cylinder; 5064, through hole; 5065, intercepting area; 5066, guide plate; 6, water collection bottle; 7, observation window; 8, external discharge port; 9, traction mechanism; 901, magnetic attraction block; 10, convex part; 11, concave part; 12, mark. Detailed Embodiments

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0019] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "several" is two or more unless otherwise clearly and specifically defined. Embodiment

[0021] Please refer to Figures 1-9 As shown, a building anti-leakage water collection and drainage structure provided by the present invention includes two floor slabs 1, a expansion joint 2 between the floor slabs 1, and a water stop belt 3 installed on the expansion joint 2. An anti-leakage structure 4 closely connected thereto is provided in the area inside the expansion joint 2 and on the inner side of the water stop belt 3. The anti-leakage structure 4 is composed of several groups of water collection and drainage mechanisms 5. The water collection and drainage mechanisms 5 are closely connected to each other, so that the leaked rainwater flows into the water collection and drainage mechanisms 5.

[0022] Through the above design, when the water stop belt 3 of the expansion joint 2 leaks, the rainwater can be directly discharged through the anti-leakage structure 4, avoiding the further damage caused by the accumulation of moisture inside the structure. At the same time, since the water collection and drainage mechanism 5 is composed of multiple units, the maintenance personnel can accurately judge the leakage position of the water stop belt 3 through the water flow conditions of each water collection unit, realizing positioning maintenance, thereby significantly improving the pertinence and efficiency of maintenance, reducing the maintenance cost, and extending the service life of the structure.

[0023] The water collection and drainage mechanism 5 includes components such as a pair of pressing and draining members 501, several water collectors 502, a drain pipe 505, and an intercepting mechanism 506. The pressing and draining members 501 are arranged in the expansion joint 2 and are in close contact with the inner side surface of the water stop 3. The water collectors 502 are sequentially arranged along the length direction of the pressing and draining members 501, and are fixedly connected between the water collectors 502. A first drainage portion 503 is provided on each water collector 502 facing the direction of the water stop 3, and the first drainage portions 503 between the water collectors 502 are tightly connected, so that the leaked rainwater selectively flows into one of the water collectors 502. A drain hole 504 is provided on each water collector 502, and the drain pipe 505 is communicated with each drain hole 504 for a one-time confirmation of the leakage position of the water stop 3. The intercepting mechanism 506 is arranged in each water collector 502 for a secondary confirmation of the leakage position of the water stop 3.

[0024] In this embodiment, as Figure 4 and Figure 7 shown, the first drainage portion 503 has four end faces inclined downward for guiding rainwater into the water collector 502; the first drainage portions 503 of two adjacent water collectors 502 form a triangular contour structure at the connection, avoiding the retention of rainwater in the connection area, so that the leaked rainwater smoothly flows into the water collector 502, improving the drainage efficiency and subsequent inspection and troubleshooting.

[0025] A water collection bottle 6 is provided at the drainage end of each drain pipe 505. An observation window 7 for observing the internal water level is provided on the water collection bottle 6, and an external drain port 8 is provided at a part of the water collection bottle 6 close to the water inlet.

[0026] This design facilitates the operator to visually check whether there is water accumulation in each water collection bottle 6 after rainfall, so as to judge whether the water stop 3 in the area above the corresponding water collection and drainage mechanism 5 leaks, and then quickly locate and preliminarily judge the leakage position, improving the inspection efficiency and maintenance pertinence.

[0027] The intercepting mechanism 506 includes: an annular groove 5061, an intercepting cylinder 5063, a diversion plate 5066, and a traction mechanism 9. The annular groove 5061 is provided in the water collector 502 and is located around the drain hole 504. A second drainage part 5062 is provided between the annular groove 5061 and the drain hole 504. The intercepting cylinder 5063 is movably arranged in the annular groove 5061. A plurality of through holes 5064 are formed in the intercepting cylinder 5063. When the end face of the intercepting cylinder 5063 is in contact with the bottom of the annular groove 5061, the through holes 5064 are hidden in the annular groove 5061. At this time, an intercepting area 5065 is formed between the wall of the intercepting cylinder 5063 and the second drainage part 5062. The diversion plate 5066 is fixed to the intercepting cylinder 5063 through a support rod and is used to guide the seeping rainwater to the intercepting area 5065. The traction mechanism 9 is arranged on the intercepting cylinder 5063 and / or the diversion plate 5066 and is used to guide the intercepting cylinder 5063 to move along the axial direction of the annular groove 5061.

[0028] In this embodiment, the shape of the second drainage part 5062 is preferably a conical funnel shape, which is beneficial to improving the rainwater drainage efficiency and preventing the water flow from spreading.

[0029] In this embodiment, the traction mechanism 9 is a magnetic attraction block 901. The magnetic attraction block 901 can be selectively arranged on the intercepting cylinder 5063 and / or the diversion plate 5066, or can be arranged on any one of the two components. As long as it can effectively pull and lift the intercepting cylinder 5063 to expose the through holes 5064 out of the annular groove 5061 and enable the seeping rainwater to smoothly drain out of the intercepting area 5065, the purpose of controlling and observing the rainwater discharge situation can be achieved.

[0030] Through the cooperation of the above water collector 502 and the intercepting mechanism 506, partial water volume can be intercepted when the seeping rainwater flows in, and at the same time, the rainwater exceeding the intercepting capacity can continue to drain smoothly, thereby providing a continuous and effective drainage channel to avoid structural water accumulation. At the same time, through the rainwater intercepted in the intercepting area 5065, maintenance personnel can control the intercepting cylinder 5063 to move upward by means of an external magnetic attraction block 901, so that the rainwater is discharged through the through holes 5064, thereby observing the water collection or water discharge condition below, further confirming whether the water stop belt 3 is damaged at this place, realizing the secondary positioning of the seepage point, effectively reducing the maintenance range, and improving the maintenance efficiency and accuracy.

[0031] Convex parts 10 and concave parts 11 that match each other are provided at the end of the intercepting cylinder 5063 and the bottom of the annular groove 5061. This structural design helps to enhance the cooperation stability between the two, can further achieve an interception barrier, improve the interception efficiency of seeping rainwater, prevent the water flow from directly passing through the contact interface, and thus improve the reliability of the interception effect.

[0032] On the floor slab 1, there are markings 12 which respectively correspond to the installation positions of the respective drain pipes 505 and are used to indicate the specific positions of the drainage channels connected thereto. This design facilitates the operator to quickly locate the corresponding drainage path during the leakage inspection process, realizes the precise calibration of the leakage position of the water stop belt 3, and improves the inspection efficiency and accuracy.

[0033] The connection part between adjacent water collectors 502 is arranged in a straight line. This design helps to standardize the structure, facilitates modular design and alignment installation, reduces the connection complexity, and improves the installation efficiency and construction convenience.

[0034] The working principle of the present invention is as follows: In a building anti-leakage water collection and drainage structure of this embodiment, when a certain section of the water stop belt 3 leaks, the leaked rainwater first falls into the corresponding water collector 502 and flows into the intercepting area 5065 provided inside the water collector 502 under the guidance of the first drainage part 503. The rainwater will gradually accumulate in the intercepting area 5065. When the water level exceeds the height of the intercepting cylinder 5063, the excess rainwater will bypass the intercepting cylinder 5063 and, under the guiding action of the second drainage part 5062, be discharged into the water collection bottle 6 through the drain pipe 505 and finally discharged out of the system through the external discharge port 8.

[0035] On the other hand, by observing whether there is rainwater in the water collection bottle 6, it is possible to initially judge whether there is a leak at the corresponding position above the water stop belt 3, thereby completing the primary positioning of the leak point.

[0036] During the secondary positioning, the operator can use another magnetic object to perform a magnetic attraction cooperation operation above the position of the water stop belt 3, so that the intercepting cylinder 5063 moves upward under the magnetic force, and the through hole 5064 is exposed outside the annular groove 5061. If there is accumulated water in the intercepting area 5065, the rainwater will further drain through the through hole 5064 and enter the water collection bottle 6. The personnel below can further confirm whether there is a leak at this specific position through this drainage situation, thereby realizing the secondary confirmation of the leak position, and then carrying out precise and efficient local repair operations, significantly improving the maintenance efficiency and repair accuracy.

[0037] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A water collection and drainage structure for building waterproofing, characterized in that: It includes two floor slabs, an expansion joint between the floor slabs, and a water stop installed on the expansion joint. An anti-leakage structure tightly connected thereto is provided in the area inside the expansion joint and on the inner side of the water stop. The anti-leakage structure is composed of several sets of water collection and drainage mechanisms, and the water collection and drainage mechanisms are tightly connected to allow the seeping rainwater to flow into the water collection and drainage mechanisms.

2. The water collection and drainage structure for building waterproofing according to claim 1, characterized in that: The water collection and drainage mechanism includes: A pair of pressing rows, which are arranged inside the expansion joint and are tightly attached to the inner side surface of the water stop; Several water collectors, which are arranged in sequence along the length direction of the pressing row. The water collectors are fixedly connected to each other. A first drainage part is provided on each water collector in the direction towards the water stop. The first drainage parts between the water collectors are tightly connected to allow the seeping rainwater to flow into one of the water collectors selectively. Drainage holes are provided on each water collector; A drain pipe, which is communicated with each drainage hole and is used for the one-time confirmation of the leakage position of the water stop; An interception mechanism, which is arranged in each water collector and is used for the secondary confirmation of the leakage position of the water stop.

3. A building waterproofing and water collection and drainage structure according to claim 1, characterized in that: A water collection bottle is provided at the drainage end of each drain pipe. An observation window for observing the internal water level is provided on the water collection bottle, and an external drainage port is provided at the part of the water collection bottle close to the water inlet.

4. A building anti-seepage water collection and drainage structure according to claim 2, characterized in that: The interception mechanism includes: An annular groove, which is arranged inside the water collector and is located around the drainage hole. A second drainage part is provided between the annular groove and the drainage hole; An interception cylinder, which is movably arranged in the annular groove. Several through holes are provided on the interception cylinder. When the end surface of the interception cylinder is attached to the bottom of the annular groove, the through holes are hidden in the annular groove, and an interception area is formed between the cylinder wall of the interception cylinder and the second drainage part; A diversion plate, which is fixed to the interception cylinder through a support rod and is used for guiding the seeping rainwater to be discharged to the interception area; A traction mechanism, which is arranged on the interception cylinder and / or the diversion plate and is used for guiding the interception cylinder to move along the axial direction of the annular groove.

5. A building anti-seepage water collection and drainage structure according to claim 4, characterized in that: The traction mechanism is a magnetic attraction block, which is arranged on the interception cylinder and / or the diversion plate.

6. The water collection and drainage structure for building leakage prevention according to claim 4, characterized in that: Convex parts and concave parts that match each other are provided at the end of the interception cylinder and the bottom of the annular groove.

7. The water collection and drainage structure for building leakage prevention according to claim 2, characterized in that: Marks are provided on the floor slab, and the marks respectively correspond to the installation positions of the drain pipes and are used to indicate the specific positions of the drainage channels connected thereto.

8. The water collection and drainage structure for building waterproofing according to claim 2, characterized in that: The connection parts between adjacent water collectors are arranged in a straight line.

Citation Information

Patent Citations

  • Intelligent roof waterproof layer leak detection method

    CN114525901A

  • Vertical shaft drainage system and construction method

    CN115450629A

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    CN119373242A

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    CN208108550U

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