Waterproof structure for expansion joint of building structure
By installing a waterproof structure at the building's structural expansion joints, including protective baffles, water-guiding arc surfaces, water collection troughs, and drainage ditches, the problem of rainwater not being able to drain quickly is solved, achieving both double waterproof protection and rapid drainage.
Patent Information
- Application Number
- CN202520178011.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-05
AI Technical Summary
The lack of effective rainwater guidance and drainage structures at the expansion joints of existing building structures prevents rainwater from draining quickly, which can easily lead to leakage problems.
A waterproof structure was designed, comprising a protective baffle, a water-guiding arc surface, a water collection trough, and a drainage ditch. The protective baffle guides rainwater to the water collection trough, the water-guiding slope collects water and flows into the drainage ditch, and the water is discharged into the external drainage pipe through the drainage branch pipe, thus realizing the rapid guidance and discharge of rainwater.
It provides double waterproof protection for the expansion joints of the building structure, effectively preventing water leakage and quickly guiding and draining rainwater in rainy weather, thus improving the waterproof effect.
Smart Images

Figure CN223753525U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of expansion joint, especially, relate to a waterproof structure of building structure expansion joint. BACKGROUND
[0002] The building expansion joint is also called expansion joint, which is a vertical structure joint arranged at appropriate positions along the length direction of the house to prevent the structure from being cracked or damaged due to temperature change of the climate, so that the building structure above the foundation is divided into two independent parts, such as wall, floor and roof, so that the building can be horizontally expanded in the length direction.
[0003] However, in actual use, the applicant found that the building structure expansion joint lacks a drainage structure for guiding rainwater, so that rainwater cannot be quickly guided and discharged. UTILITY MODEL CONTENT
[0004] To solve the above technical problems, the utility model is realized by the following technical scheme:
[0005] The utility model relates to a waterproof structure of building structure expansion joint, which comprises two walls, an expansion joint arranged between the two walls, support parts fixedly arranged at positions close to the expansion joint on the two walls, a waterproof belt fixedly connected between the two support parts, a support plate fixedly arranged at the top of the support part, a connecting sliding groove formed at the top of the support plate, a protective baffle arranged above the waterproof belt, the protective baffle being arranged on the top of the support plate, a water guiding arc surface formed at the top of the protective baffle, bending parts downwardly arranged at the two sides of the protective baffle, connecting sliding columns fixedly and symmetrically arranged at the bottom of the protective baffle, the connecting sliding columns being slidable along the connecting sliding groove, a water collecting groove formed in the wall below the bending parts, a drainage groove formed at the bottom of the water collecting groove, and a drainage branch pipe fixedly and penetratingly arranged on the wall in front of the drainage groove.
[0006] Preferably, water guiding slope surfaces are symmetrically arranged on the walls at the two sides of the water collecting groove, and the drainage groove is located below the water guiding slope surfaces.
[0007] Preferably, the drainage branch communicates with the bottom of the drainage groove, and the drainage branch is connected with an external drainage pipeline through a connecting pipeline.
[0008] Preferably, a plurality of connecting sliding grooves are arranged on the top of the support plate in the front-rear direction.
[0009] Preferably, a plurality of connecting sliding columns are arranged on the same side of the bottom of the protective baffle in the front-rear direction, and the lower ends of the connecting sliding columns movably penetrate the connecting sliding grooves at corresponding positions.
[0010] Preferably, an external thread part is arranged on each of the connecting sliding columns at four corner positions, and a lock nut is threadedly connected to the lower ends of the four connecting sliding columns after penetrating the connecting sliding grooves.
[0011] The utility model has the following beneficial effects:
[0012] The utility model discloses a waterproof structure of building structure expansion joint, through setting up the protective baffle, can carry out protection shielding to waterproof tape, and can realize the waterproof of expansion joint place once, through setting up waterproof tape, can realize the waterproof of expansion joint place twice, through double waterproof protection, can effectively prevent building structure expansion joint place water leakage, through setting up the water diversion arc surface on the top of the protective baffle, can drain the rainwater on the top of the protective baffle to the water collecting groove, and can gather the water collected to the drainage groove through the water diversion slope, and finally can through the drainage branch and drain the water gathered in the drainage groove into the external drainage pipeline, can realize the rainwater quick guidance drainage of building structure expansion joint place. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.
[0014] Fig. 1 It is the whole structure schematic view of the utility model discloses a waterproof structure of building structure expansion joint;
[0015] Fig. 2 It is the structure schematic view when taking out the protective baffle of the utility model discloses a waterproof structure of building structure expansion joint;
[0016] Fig. 3 It is the structure schematic view of the protective baffle in the utility model discloses a waterproof structure of building structure expansion joint.
[0017] In the drawings, the component list represented by each sign is as follows:
[0018] 1, wall body; 11, support part; 12, support plate; 13, connecting sliding groove; 14, water collecting groove; 15, water guide slope surface; 16, drainage groove; 17, drainage branch pipe; 2, waterproof belt; 3, protective baffle; 31, water guide arc surface; 32, connecting sliding column; 321, external thread part; 33, bending part; 4, lock nut. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0020] Please refer to Figs. 1-3 The present application provides a technical scheme:
[0021] The utility model provides a waterproof structure of building structure expansion joint, including two wall bodies 1, be provided with expansion joint between two wall bodies 1, and the position of two wall bodies 1 is close to expansion joint and is fixedly arranged with support part 11, waterproof band 2 is fixedly connected between two support parts 11, and the top of support part 11 is fixedly arranged with support plate 12, and the top of support plate 12 is equipped with the connecting sliding slot 13, and the connecting sliding slot 13 of support plate 12 top is equipped with a plurality of side by side equal interval in front and back direction, and the top of waterproof band 2 is provided with protective baffle 3, and the bottom of protective baffle 3 is placed on the top of support plate 12, and the waterproof band 2 can be protected and shielded by the protective baffle 3, and the waterproof of expansion joint can be realized once, and the waterproof of expansion joint can be realized twice by the waterproof band 2, and by double waterproof protection, the water leakage of building structure expansion joint can be effectively prevented, and the bottom of protective baffle 3 is fixedly provided with connecting slide column 32, and the connecting slide column 32 of the same side of protective baffle 3 bottom is provided with a plurality of side by side equal interval along the front and back direction, and the lower end of connecting slide column 32 is movably penetrated through the connecting sliding slot 13 of corresponding position, and connecting slide column 32 slides along connecting sliding slot 13, and the outer thread part 321 is arranged on the connecting slide column 32 of four corner positions, and the lower end of four connecting slide columns 32 is penetrated through connecting sliding slot 13 and is screwed with locknut 4, and the locknut 4 is arranged for the location of protective baffle 3, prevents protective baffle 3 from being lifted upwards, when using, waterproof band 2 can be fixedly installed between two support parts 11, and the connecting slide column 32 of protective baffle 3 bottom is aligned and inserted into the connecting sliding slot 13 of support plate 12 top, so that the bottom of protective baffle 3 is placed on support plate 12, and the lower end of connecting slide column 32 of four corner positions is screwed with locknut 4, for the location of protective baffle 3, when the building thermal expansion and cold shrink, connecting slide column 32 can slide along connecting sliding slot 13, so that protective baffle 3 can always be located in the top of waterproof band 2, and the waterproof band 2 can be shielded and protected by protective baffle 3, and the waterproof of building structure expansion joint can be realized once by protective baffle 3, and the waterproof of building structure expansion joint can be realized twice by waterproof band 2.
[0022] The top of the protective baffle 3 is provided with a water diversion arc surface 31, and the two sides of the protective baffle 3 are provided with bending parts 33 which are bent downward, and a water collecting groove 14 is formed in the wall body 1 below the bending parts 33, symmetrically provided with water diversion slope surfaces 15 on the wall body 1 on both sides of the water collecting groove 14, and a drainage ditch 16 is formed in the bottom of the water collecting groove 14, which is located below the water diversion slope surface 15, and a drainage branch pipe 17 is fixedly provided on the wall body 1 in front of the drainage ditch 16, which is in communication with the bottom of the drainage ditch 16, and the drainage branch pipe 17 is connected with the external drainage pipeline through a connecting pipeline. By opening the water diversion arc surface 31 on the top of the protective baffle 3, the rainwater on the top of the protective baffle 3 can be drained into the water collecting groove 14, and the collected water can be gathered into the drainage ditch 16 through the water diversion slope surface 15, and finally the water gathered in the drainage ditch 16 can be discharged into the external drainage pipeline through the drainage branch pipe 17, so that the rainwater at the expansion joint of the building structure can be quickly guided and discharged. In rainy days, the rainwater falling on the protective baffle 3 can be drained into the water collecting groove 14 on both sides through the water diversion arc surface 31, and the rainwater entering the water collecting groove 14 can be gathered into the drainage ditch 16 through the water diversion slope surface 15, and finally the rainwater in the drainage ditch 16 can be discharged into the external drainage pipeline through the drainage branch pipe 17, so as to guide and discharge the rainwater at the expansion joint of the building structure.
[0023] Working principle: when in use, the waterproof belt 2 can be fixedly installed between the two support parts 11, and the connecting slide column 32 at the bottom of the protective baffle 3 is aligned and inserted into the connecting slide groove 13 at the top of the support plate 12, so that the bottom of the protective baffle 3 is placed on the support plate 12, and the anti-loose nuts 4 are screwed on the lower ends of the connecting slide columns 32 at the four corner positions, for limiting the protective baffle 3. When the building expands or shrinks due to heat or cold, the connecting slide column 32 can slide along the connecting slide groove 13, so that the protective baffle 3 can always be located directly above the waterproof belt 2, and the waterproof belt 2 can be shielded by the protective baffle 3, and at the same time, the protective baffle 3 can realize primary waterproofing at the expansion joint of the building structure, and the waterproof belt 2 can realize secondary waterproofing at the expansion joint of the building structure. In rainy days, the rainwater falling on the protective baffle 3 can be drained into the water collecting groove 14 on both sides through the water diversion arc surface 31, the rainwater entering the water collecting groove 14 can be gathered into the drainage ditch 16 through the water diversion slope surface 15, and finally the rainwater in the drainage ditch 16 can be discharged into the external drainage pipeline through the drainage branch pipe 17, so as to guide and discharge the rainwater at the expansion joint of the building structure.
[0024] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0025] The above is only the preferred embodiment of the utility model, and does not limit the utility model, any modification to the technical scheme recorded in the foregoing embodiments, equivalent replacement to part of the technical features, all belong to the protection scope of the utility model.
Claims
1. A waterproof structure of a building structure expansion joint, comprising two wall bodies (1), an expansion joint is arranged between the two wall bodies (1), characterized in that: Two said wall (1) near the expansion joint position are fixedly provided with support part (11), two said support part (11) between fixedly connected with waterproof belt (2), the top of support part (11) is fixedly provided with support plate (12), the top of support plate (12) is provided with connecting sliding groove (13), the top of waterproof belt (2) is provided with protective baffle (3), the bottom of protective baffle (3) is placed on the top of support plate (12), the top of protective baffle (3) is provided with water diversion camber (31), the both sides of protective baffle (3) are downwardly bent and provided with bending part (33), the bottom of protective baffle (3) is fixedly provided with connecting slide column (32) symmetrically, the connecting slide column (32) is slid along the connecting sliding groove (13), the water collecting tank (14) is formed in the wall (1) below the bending part (33), the bottom of water collecting tank (14) is provided with drainage ditch (16), the wall (1) in front of drainage ditch (16) is fixedly provided with drainage branch pipe (17) penetratingly.
2. The waterproof structure of expansion joint of building structure according to claim 1, characterized in that, The water diversion slope (15) is symmetrically arranged on the wall (1) on both sides of the water collecting tank (14), and the drainage ditch (16) is located below the water diversion slope (15).
3. The waterproof structure of expansion joint of building structure according to claim 1, characterized in that, The drainage branch pipe (17) is communicated with the bottom of the drainage ditch (16), and the drainage branch pipe (17) is connected with an external drainage pipeline through a connecting pipeline.
4. The waterproof structure of expansion joint of building structure according to claim 1, characterized in that, The connecting sliding groove (13) on the top of the support plate (12) is provided with a plurality of connecting sliding grooves (13) in the front-rear direction.
5. A waterproof structure of an expansion joint of a building structure according to claim 4, wherein The connecting slide column (32) on the same side of the bottom of the protective baffle (3) is provided with a plurality of connecting slide columns (32) in the front-rear direction, and the lower end of the connecting slide column (32) is movably penetrated through the connecting sliding groove (13) at the corresponding position.
6. A waterproof structure of a building structure expansion joint according to claim 5, wherein An external thread part (321) is formed on the connecting slide column (32) at the four corner positions, and the lower end of the four connecting slide columns (32) is threadedly connected with a locknut (4) after penetrating through the connecting sliding groove (13).
Citation Information
Patent Citations
Waterproof structure of building structure expansion joint
CN212200814U