Dustproof and waterproof structure for expansion joint of sidewalk slab
By designing the combination of cover plate parts, baffle parts, fixtures and waterproof components at the expansion joint of the sidewalk, the structural damage and rainwater and dust erosion caused by temperature changes in the high temperature season are solved, and the dust-proof and waterproof effect and durability of the expansion joint are improved.
Patent Information
- Application Number
- CN202421284609.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The sidewalk expands due to rising temperatures during high temperature seasons, causing internal stress to damage the concrete structure, and the rainwater erosion and dust accumulation at the expansion joints affect their use.
A dust-proof and waterproof structure for the sidewalk panel expansion joint is designed, using a combination of cover plate parts, baffle parts, fixtures and waterproof components. The cover plate parts can be freely slid or connected through sliding components to prevent rainwater and dust from entering the expansion joint.
This structure can adapt to the expansion and shrinkage of expansion joints, provide effective dust-proof and waterproofing effects, and improve the durability of expansion joints.
Smart Images
Figure CN222861997U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering construction, in particular to a dustproof and waterproof structure of an expansion joint. Background Art
[0002] An expansion joint refers to a structural joint set at an appropriate position along the construction joint direction of a building or structure to prevent the building components from cracking or being damaged due to climate temperature changes (thermal expansion and contraction).
[0003] During hot seasons, sidewalks may expand due to rising temperatures, generating horizontal internal stress that can damage the entire concrete structure during the expansion process. Rainwater falling from expansion joints can erode the concrete, and dust can affect the use of expansion joints.
[0004] Therefore, a dustproof and waterproof structure for the expansion joint of a sidewalk slab is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a dustproof and waterproof structure for a sidewalk slab expansion joint, so as to solve the problems raised in the above-mentioned background technology.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A dustproof and waterproof structure for a sidewalk slab expansion joint, comprising: a sidewalk slab, a concrete paving surface, a fixing member, a baffle member, a cover member and a waterproof assembly; the fixing member and the baffle member are symmetrically arranged on both sides of the expansion joint; the two baffle members are respectively located on the inner sides of the two fixing members; the cover member is located above the two baffle members and covers the expansion joint, one end of the cover member is fixedly connected to one baffle member, and the other end of the cover member is movably connected to the other baffle member, wherein the movably connected can be free sliding or can be slidably connected through a sliding assembly to prevent rainwater and dust from directly entering the expansion joint.
[0008] Furthermore, supporting steel bars are embedded inside the sidewalk slab, and the supporting steel bars are located below the two baffle members and overlap with the baffle members to prevent the baffle members from falling off.
[0009] Furthermore, the waterproof component is fixed at the joints between concrete paving surfaces, which can effectively filter water and prevent water and dust; the waterproof component includes asphalt paste, zinc iron sheet and cement nails, the zinc iron sheet is U-shaped, the bottom is semicircular, the middle is a vertical edge, and the top is folded to form a fixed edge, and the fixed edge of the zinc iron sheet is fixed to the concrete paving surface by cement nails.
[0010] Furthermore, the cover plate is made of stainless steel plate, is 25 cm long and 4 mm thick, covers the center of the expansion joint to prevent rainwater or debris from entering the expansion joint; one end is connected to a baffle by welding, and the other end can slide freely.
[0011] Furthermore, the fixings are made of thick granite with a thickness of 6 cm, and are respectively located at the top ends of both sides and are symmetrical about the center of the expansion joint.
[0012] Furthermore, the baffle member is a stainless steel plate with a thickness of 10 mm and a length of 15 cm, and is connected to the inner sides of the two fixing members.
[0013] Furthermore, the supporting steel bars have a diameter of 10 mm@20 and are respectively located under the two baffles.
[0014] Furthermore, the size of the zinc iron sheet is 350mm*lmm*2mm, and the size of the cement nail is 25mm@20.
[0015] The beneficial effects of the embodiments of the utility model include:
[0016] The dustproof and waterproof structure of the expansion joint provided by the utility model can adapt to the expansion and contraction of the expansion joint through the cooperation of components such as a cover plate member, a baffle member, and a fixing member.
[0017] The utility model can provide effective dustproof and waterproof effects to the expansion joint through the joint effect of the cover plate part and the waterproof component, thereby improving the durability of the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 A cross-sectional view of a dustproof and waterproof structure of a sidewalk slab proposed by the utility model;
[0020] Figure 2 This is an external structural diagram of a dustproof and waterproof structure of a sidewalk slab proposed by the utility model;
[0021] In the figure: 1-cover plate; 2-baffle plate; 3-fixing part; 4-expansion joint; 5-support steel bar; 6-sidewalk slab; 7-concrete pavement; 8-asphalt paste; 9-zinc iron sheet; 10-cement nail. DETAILED DESCRIPTION
[0022] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the utility model. Instead, they are only examples of systems consistent with some aspects of the utility model as detailed in the attached claims.
[0023] In order to solve certain shortcomings of the existing technology applicable to the expansion joints of sidewalks, this embodiment provides a dustproof and waterproof structure for the expansion joints of sidewalks.
[0024] like Figure 1-2 As shown, the above-mentioned sidewalk expansion joint device includes a fixing member 3, a cover member 1, a baffle member 3, supporting steel bars 5 and a waterproof component.
[0025] The fixing member 3 is 6 cm thick granite, and is located on both sides of the expansion joint 4 between the sidewalk slabs 6 at the top of the structure (the fixing member and the baffle member 2 are both arranged above the sidewalk slab 6), and is connected to the baffle member 2; wherein the fixing member 3 is located on the outside of the baffle member 2, away from the expansion joint 4, and the baffle member 2 is located on the inside of the fixing member 3, close to the expansion joint 4. In this embodiment, one end of the baffle member 2 is in contact with the fixing member 3, and the other end is flush with the side wall of the expansion joint 4.
[0026] The cover plate member 1 is arranged at the expansion joint 4 between the sidewalk slabs 6, and is located above the baffle member 2. The cover plate member 1 is an N1 stainless steel plate with a thickness of 4 mm and a length of 25 cm. The right end of the cover plate member 1 is welded to the baffle member 2 on the right side of the expansion joint 4 (in the form of a fillet weld), and the left end of the cover plate member 1 is freely slidably connected to the baffle member 2 on the left side of the expansion joint 4, that is, the left end of the cover plate member 1 is polished and smooth and slides in contact with the baffle member 2. In this way, the installation height of the cover plate member 1 can be reduced.
[0027] The baffle member 2 is 15 cm long and 10 mm thick, and is made of N2 stainless steel plate, and can be telescopically moved in coordination with the cover member 1 .
[0028] The supporting steel bars 5 are constructed of N3 steel bars with a diameter of 10mm@20. The supporting steel bars 5 are embedded in the sidewalk slabs 6 on both sides of the expansion joint 4. The top of the supporting steel bars 5 is bent and arranged horizontally and connected to the baffle member 2 (welded and fixed) to ensure the installation position of the baffle member 2 and prevent the baffle member 2 from detaching from the sidewalk slab 6.
[0029] A concrete paving surface 7 is arranged below the sidewalk slab 6 , and the joint of the concrete paving surface 7 corresponds to the position of the expansion joint 4 of the sidewalk slab 6 . A waterproof component is arranged at the joint of the concrete paving surface 7 to prevent water from entering the expansion joint 4 into the joint of the concrete paving surface 7 .
[0030] The waterproof components include 350mm*lmm*2mm zinc iron sheet 9, 25mm@20 cement nails 10, and asphalt paste 8; the zinc iron sheet 9 is processed in the factory into a U-shaped groove structure, with 90° flanges (fixed edges) on both sides of the top, and the middle of the U-shaped groove (in the U-shaped space) is filled with asphalt paste 8, and the two ends of the flange are fixed to the concrete pavement 7 with 25mm@20 cement nails 10.
[0031] In this embodiment, transverse and longitudinal gaps are provided between the sidewalk slab 6 and the concrete paving surface 7, which can be used to install components such as pipelines and lines, thereby enhancing the practicality of the structure.
[0032] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be considered as exemplary only, and the true scope and spirit of the present invention are indicated by the claims.
[0033] It should be understood that the present invention is not limited to the exact structure that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.
Claims
1. A dustproof and waterproof structure for a sidewalk slab expansion joint, comprising a sidewalk slab (6) and a concrete pavement surface (7) arranged below the sidewalk slab (6), characterized in that: The sidewalk slabs (6) are provided with fixing members (3) and baffle members (2) at both sides of the expansion joint between the sidewalk slabs (6), and the baffle members (2) are located inside the fixing members (3); a cover member (1) is provided above the two baffle members (2), and the cover member (1) covers the expansion joint, and one end of the cover member (1) is fixedly connected to one baffle member (2), and the other end of the cover member (1) is movably connected to the other baffle member (2).
2. A dustproof and waterproof structure for expansion joints of sidewalk slabs according to claim 1, characterized in that: The concrete paving surfaces (7) are provided with waterproof components at the joints between the concrete paving surfaces (7).
3. The dustproof and waterproof structure of the sidewalk slab expansion joint according to claim 1, characterized in that: Support steel bars (5) are preset in the sidewalk slab (6); the support steel bars (5) are located below the baffle member (2) and overlap the baffle member (2).
4. The dustproof and waterproof structure of the sidewalk slab expansion joint according to claim 1, characterized in that: The fixing member (3) is made of granite and has a thickness of 6 cm.
5. The dustproof and waterproof structure of the expansion joint of a sidewalk slab according to claim 1, characterized in that: The baffle member (2) is made of a stainless steel plate with a thickness of 10 mm.
6. The dustproof and waterproof structure of the sidewalk slab expansion joint according to claim 1, characterized in that: The cover plate member (1) is made of a stainless steel plate with a thickness of 4 mm, and the cover plate member (1) is slidably connected to the baffle member (2).
7. The dustproof and waterproof structure of the sidewalk slab expansion joint according to claim 2, characterized in that: The waterproof component comprises a zinc iron sheet (9), asphalt paste (8) and cement nails (10); the zinc iron sheet (9) is U-shaped, and both ends of its top are folded outward to form fixed edges; the asphalt paste (8) is filled in the U-shaped space; and the fixed edges of the zinc iron sheet (9) are fixed to the concrete paving surface (7) by cement nails (10).