Civil engineering expansion joint waterproof structure

Abstract

The utility model belongs to the field of civil construction waterproof devices, and provides a civil engineering expansion joint waterproof structure which comprises wall bodies on the two sides, an expansion joint is formed between the two wall bodies, and bearing grooves are formed in the tops, close to the expansion joint, of the two wall bodies. The expansion joint further comprises a waterproof shell, the waterproof shell is arranged in the expansion joint, the profile of the vertical section of the waterproof shell is in a U shape, the top of the U shape of the waterproof shell is provided with a lap joint part extending backwards, the lap joint part is placed in the bearing groove, and water absorption cotton is arranged on the outer walls of the two vertical sections of the U shape of the waterproof shell. One side of the absorbent cotton is attached to the side wall of the expansion joint; according to the expansion joint, the waterproof shell is arranged in the expansion joint, so that the expansion joint is shielded, water cannot enter a crack after the crack is generated, normal use of the expansion joint is guaranteed, and the service life of the expansion joint is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to civil engineering waterproof device field, specifically, a civil engineering expansion joint waterproof structure. BACKGROUND

[0002] Civil engineering expansion joint, namely building expansion joint, is a structural joint arranged at a proper position along the construction joint direction of building or structure to prevent structural cracks or damage caused by climate temperature change (thermal expansion and cold contraction),

[0003] Expansion joint plays a vital role in civil engineering, which can cope with structural shrinkage and expansion caused by changes in external factors such as temperature and humidity. After the construction of expansion joint is completed, a certain degree of waterproofing is carried out. The traditional way is to use waterproof material to coat the expansion joint to achieve the effect of sealing and waterproofing.

[0004] However, expansion joint often causes voids and cracks due to the need to withstand certain pressure, which also causes voids and cracks in the waterproof material. These voids and cracks may allow water to penetrate, thereby accelerating the aging and damage of concrete and affecting the normal use and service life of the expansion joint. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a civil engineering expansion joint waterproof structure to solve the problem that the expansion joint produces voids and cracks after bearing certain pressure in the prior art, which causes cracks in the covered waterproof material, and water enters the cracks, resulting in shortened service life of the expansion joint.

[0006] A civil engineering expansion joint waterproof structure, comprising two walls on both sides, an expansion joint formed between the two walls, and a bearing groove provided at the top of the two walls near the expansion joint.

[0007] It also includes a waterproof shell, which is arranged in the expansion joint. The vertical cross-sectional profile of the waterproof shell is "U" shaped. The "U" shaped top of the waterproof shell is provided with a lap joint extending backward, which is placed in the bearing groove. The outer wall of the two vertical segments of the "U" shaped waterproof shell is provided with water-absorbing cotton. When the waterproof shell is installed in the expansion joint, one side of the water-absorbing cotton is attached to the side wall of the expansion joint.

[0008] Preferably, the waterproof shell is made of plastic material. The two "U" shaped vertical segments of the waterproof shell are inclined, and the closer to the bottom of the waterproof shell, the closer the "U" shaped vertical segments of the waterproof shell.

[0009] Preferably, the bottom of the lap joint is provided with a sealing rubber layer, the waterproof shell is placed behind the expansion joint, and the sealing rubber layer is attached to the bottom surface of the bearing groove.

[0010] Preferably, the top of the lap joint is provided with a movable connecting pressing strip, the pressing strip, the lap joint and the sealing rubber layer are provided with spaced screw holes on the wall body, the top of the pressing strip is provided with a pressing screw, and the pressing screw is matched with the screw holes.

[0011] Preferably, the two 'U' shaped vertical sections of the waterproof shell are provided with spaced heat dissipation holes.

[0012] Preferably, the waterproof shell is provided with a water baffle on the opposite inner surfaces, the vertical section profile of the water baffle is inverted 'L' shaped, and the water baffle is located above the heat dissipation holes.

[0013] Preferably, the waterproof shell is provided with spaced drainage grooves on the inner bottom surface, the vertical section profile of the drainage groove is arc-shaped, the drainage groove is inclined, and the included angle between the drainage groove and the horizontal plane is 2 degrees.

[0014] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0015] 1. The waterproof shell is installed in the expansion joint, the lap joint of the waterproof shell is placed in the bearing groove, the water absorbing cotton on the outer wall of the waterproof shell is attached to the inner wall of the expansion joint, when a crack appears in the expansion joint, the waterproof shell is still arranged in the expansion joint, thereby protecting the expansion joint, avoiding rainwater from entering the gap, ensuring normal use of the expansion joint and prolonging the service life of the expansion joint.

[0016] 2. The vertical section profile of the waterproof shell is designed as 'U' shaped, the 'U' shaped vertical section is inclined, the 'U' shaped vertical section of the waterproof shell is closer to the bottom of the waterproof shell, the waterproof shell is made of plastic material and has certain ductility, so that the waterproof shell can be placed in expansion joints with different widths, and the flexibility of the waterproof structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a waterproof part structure schematic view of the whole expansion joint of the utility model;

[0018] Figure 2 It is a wall body and waterproof shell part structure schematic view of the utility model;

[0019] Figure 3 It is a waterproof shell and pressing strip part structure schematic view of the utility model;

[0020] Figure 4The utility model discloses waterproof shell internal drainage groove component structure schematic diagram.

[0021] In the drawing,

[0022] 1, wall body;2, expansion joint;3, bearing groove;4, waterproof shell;5, lap joint part;6, water absorbing cotton;7, sealing rubber layer;8, batten;9, screw hole;10, compression screw;11, heat dissipation hole;12, water baffle;13, drainage groove. DETAILED DESCRIPTION

[0023] The utility model discloses waterproof shell internal drainage groove component structure schematic diagram.

[0024] As shown in the accompanying Figure 1 to the accompanying Figure 4 As shown:

[0025] Example one: the utility model provides a civil engineering expansion joint 2 waterproof structure, including two sides wall body 1, and the expansion joint 2 is formed between two wall bodies 1, and the top of two wall bodies 1 near expansion joint 2 is equipped with bearing groove 3;

[0026] Still include waterproof shell 4, waterproof shell 4 sets up in expansion joint 2, and the vertical section contour of waterproof shell 4 is " U " shape, and the " U " shape top of waterproof shell 4 is equipped with the lap joint part 5 of extending to back, and the lap joint part 5 is placed in bearing groove 3, and the " U " shape two vertical sections outer wall of waterproof shell 4 is equipped with water absorbing cotton 6, when waterproof shell 4 installs in expansion joint 2, and water absorbing cotton 6 one side is attached with expansion joint 2 side wall.

[0027] It needs to be explained that, through installing waterproof shell 4 in expansion joint 2, and the lap joint part 5 on waterproof shell 4 is placed in bearing groove 3, and water absorbing cotton 6 on the outer wall of waterproof shell 4 is attached with the inner wall of expansion joint 2, when the crack appears in expansion joint 2, and waterproof shell 4 still sets up in expansion joint 2, thereby protecting it, avoid rainwater from entering into the gap, guarantee the normal use of expansion joint 2 and prolong its service life.

[0028] The water absorbing cotton 6 that setting is attached on the two side walls in expansion joint 2, so when a small amount of water enters into expansion joint 2 and flows down along the wall, can be absorbed in time by water absorbing cotton 6.

[0029] In the embodiment, waterproof shell 4 is the component made of plastic material, and the two " U " shape vertical sections on waterproof shell 4 are inclined, and the closer to the bottom of waterproof shell 4, the closer the " U " shape vertical sections on waterproof shell 4.

[0030] It should be noted that the vertical section profile of the waterproof shell 4 is designed as "U" shape, and the "U" shape vertical section is inclined, and the closer to the bottom of the waterproof shell 4, the closer the "U" shape vertical section on the waterproof shell 4, which can facilitate the placement of the waterproof shell 4 in the expansion joint 2.

[0031] By designing the waterproof shell 4 as a plastic material, it has certain extension, so that when facing the expansion joint 2 with short distance, the two "U" shape vertical sections of the waterproof shell 4 can be moved inward, so as to adapt to the expansion joint 2 with different distances, and improve the flexibility of the waterproof structure of the expansion joint 2.

[0032] In this embodiment, the bottom of the lap joint 5 is provided with a sealing rubber layer 7, and after the waterproof shell 4 is placed in the expansion joint 2, the sealing rubber layer 7 is attached to the bottom surface of the bearing groove 3.

[0033] It should be noted that by setting the sealing rubber layer 7 on the bottom of the lap joint 5, the sealing rubber layer 7 is fixedly connected thereon, so that after the lap joint 5 is placed into the bearing groove 3, the sealing rubber layer 7 on the bottom is attached to the bottom of the bearing groove 3, which increases the sealing between the wall body 1 and the waterproof shell 4, and avoids the water from flowing into the expansion joint 2 from the bearing groove 3.

[0034] In this embodiment, the top of the lap joint 5 is provided with a movable connection pressing strip 8, the pressing strip 8, the lap joint 5, the sealing rubber layer 7 and the wall body 1 are provided with spaced distribution screw holes 9, the top of the pressing strip 8 is provided with a pressing screw 10, and the pressing screw 10 is matched with the screw hole 9.

[0035] It should be noted that the pressing strip 8 is arranged on the lap joint 5, and the pressing screw 10 can lock the pressing strip 8 at the top end of the lap joint 5, so as to further improve the sealing between the waterproof shell 4 and the wall body 1.

[0036] In this embodiment, the two "U" shape vertical sections of the waterproof shell 4 are provided with spaced distribution heat dissipation holes 11.

[0037] It should be noted that the spaced distribution heat dissipation holes 11 are designed symmetrically on the waterproof shell 4, so that the heat in the expansion joint 2 can be lost to the outside through the heat dissipation holes 11, although the waterproof shell 4 is arranged in the expansion joint 2, but it will not affect the normal heat dissipation of the expansion joint 2.

[0038] In this embodiment, the inside opposite surface of the waterproof shell 4 is provided with a water baffle 12, the vertical section profile of the water baffle 12 is inverted "L" shape, and the water baffle 12 is located above the heat dissipation hole 11.

[0039] It should be noted that the water baffle 12 is fixedly connected to the inner wall of the waterproof shell 4 and in front of the heat dissipation hole 11, when it rains, the rainwater will enter the inside of the waterproof shell 4, after the rainwater falls on the water baffle 12, it will flow from the water baffle 12 to the drain groove 13 in the waterproof shell 4, thereby avoiding entering the expansion joint 2 through the heat dissipation hole 11, both ensuring the heat dissipation function and avoiding the rainwater entering the expansion joint 2 through the heat dissipation hole 11 in rainy days.

[0040] In the embodiment, the inside bottom surface of the waterproof shell 4 is provided with the spacedly distributed drain grooves 13, the vertical section profile of the drain groove 13 is arc-shaped, and the drain groove 13 is inclined, and the included angle between the drain groove 13 and the horizontal plane is 2 degrees.

[0041] It should be noted that the drain groove 13 is arranged on the inside bottom surface of the waterproof shell 4, so that the rainwater can enter the drain groove 13 for drainage when it rains, and the drain groove 13 is designed in an inclined manner, so that the rainwater can move along the drain groove 13 to the low point position, and the water in the waterproof shell 4 is drained.

[0042] As can be seen from the above, when the waterproof structure needs to be installed in the expansion joint 2, the pre-prepared bearing groove 3 is formed in the wall body 1 on both sides of the expansion joint 2, the waterproof shell 4 is placed in the expansion joint 2, the lap joint part 5 on the waterproof shell 4 is placed into the bearing groove 3, the bottom sealing rubber layer 7 of the lap joint part 5 is attached to the bottom of the bearing groove 3, and the water-absorbing cotton 6 on the outer wall of the waterproof shell 4 is attached to the side wall of the expansion joint 2;

[0043] At this time, the external pressing strip 8 is taken out and placed on the top end of the lap joint part 5 of the waterproof shell 4, the pressing strip 8 has a threaded hole 9, a locking screw is taken out and screwed down through the pressing strip 8, the sealing rubber layer 7 and the threaded hole 9 in the wall body 1 to lock, so as to fix the pressing strip 8 on the top end of the lap joint part 5, so that the water cannot penetrate from the waterproof shell 4 and the wall body 1 into the expansion joint 2, and the waterproof of the expansion joint 2 is realized.

[0044] At the same time, the expansion joint 2 is regularly checked to observe the pressing state of the pressing strip 8 and whether there is impurity in the waterproof shell 4, and the waterproof shell 4 is maintained in time, so as to ensure the waterproof of the expansion joint 2 and ensure the normal use and prolong the service life of the expansion joint.

[0045] The embodiments of the utility model are given for example and description, although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and the ordinary skilled person in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A waterproof structure for a civil engineering expansion joint, comprising wall bodies (1) on both sides, an expansion joint (2) being formed between the two wall bodies (1), characterized in that: Two said wall body (1) near the top of the expansion joint (2) is provided with bearing groove (3); It also includes a waterproof shell (4), the waterproof shell (4) is arranged in the expansion joint (2), the vertical section profile of the waterproof shell (4) is "U” shape, the "U” shape top of the waterproof shell (4) is provided with a back extending overlap (5), the overlap (5) is placed in the bearing groove (3), the outer wall of the two vertical sections of the "U” shape of the waterproof shell (4) is provided with water absorbing cotton (6), when the waterproof shell (4) is installed in the expansion joint (2), one side of the water absorbing cotton (6) is attached to the side wall of the expansion joint (2).

2. The waterproofing structure for civil engineering expansion joints according to claim 1, characterized in that: The waterproof shell (4) is made of plastic material, the two "U” shape vertical sections of the waterproof shell (4) are inclined, and the closer to the bottom of the waterproof shell (4), the closer the "U” shape vertical sections of the waterproof shell (4) are.

3. The waterproofing structure for civil engineering expansion joints according to claim 1, wherein: The bottom of the overlap (5) is provided with a sealing rubber layer (7), the waterproof shell (4) is placed in the expansion joint (2), and the sealing rubber layer (7) is attached to the bottom surface of the bearing groove (3).

4. The waterproofing structure for civil engineering expansion joints according to claim 3, characterized in that: The top of the overlap (5) is provided with a movable connecting pressing strip (8), the pressing strip (8), the overlap (5), the sealing rubber layer (7) and the wall body (1) are provided with spaced distribution screw holes (9), the upper side of the pressing strip (8) is provided with a pressing screw (10), and the pressing screw (10) is matched with the screw hole (9).

5. The civil engineering expansion joint waterproofing structure according to claim 1, wherein: The two "U” shape vertical sections of the waterproof shell (4) are provided with spaced distribution heat dissipation holes (11).

6. The waterproofing structure for civil engineering expansion joints according to claim 5, characterized in that: The opposite sides of the waterproof shell (4) are provided with water retaining strips (12), the vertical section profile of the water retaining strips (12) is inverted "L” shape, and the water retaining strips (12) are located above the heat dissipation holes (11).

7. The waterproofing structure for civil engineering expansion joints according to claim 1, wherein: The inner bottom surface of the waterproof shell (4) is provided with spaced distribution drainage grooves (13), the vertical section profile of the drainage grooves (13) is arc shape, the drainage grooves (13) are inclined, and the included angle between the drainage grooves (13) and the horizontal plane is 2 degrees.

Images