A ground expansion joint seal assembly

Abstract

The utility model discloses a ground expansion joint sealing strip combination piece relates to concrete structure ground and ground brick ground construction technical field, including aluminium alloy pressure bar and the approximate rectangular sealing strip of assembling in aluminium alloy pressure bar inside and the elastic deformation, wherein, the vertical section of approximate rectangular sealing strip is the short side of top and bottom surface arc shape recess, two side is linear type, the top of aluminium alloy pressure bar has the movable expansion joint of staggered lap, approximate rectangular sealing strip vertical elastic pressure resistance aluminium alloy pressure bar's left and right two opposite first inner wall along the long side direction, approximate rectangular sealing strip along short edge direction arc shape recess elastic pressure resistance aluminium alloy pressure bar's upper and lower two opposite second inner wall. The utility model has can realize better expansion and plugging, the appearance is beautiful, the good anti -aging performance, construction installation convenient and so on advantage.

Description

Technical Field

[0001] This utility model relates to the field of concrete structure floor and floor tile floor construction technology, and in particular to a floor expansion joint sealing strip assembly. Background Technology

[0002] Concrete flooring structures such as plaza brick surfaces and industrial plant wear-resistant concrete floors are prone to problems during use, including arching at the joints due to compression, and blackening and soiling of the joints, making cleaning difficult and affecting functionality and appearance. The gaps between the brick and concrete slabs in plazas exhibit different expansion and contraction due to thermal changes in the high temperatures of summer and the low temperatures of winter. The stress from this expansion and contraction can also cause cracks in the underlying base layer. Rainwater can then seep through these gaps to the load-bearing layer beneath, softening it and reducing its load-bearing capacity, leading to ground subsidence and water accumulation in some areas.

[0003] Currently, the treatment for ground expansion joints involves leaving a 15mm-30mm wide gap, filling it with elastic materials such as asphalt hemp fiber, and then applying a layer of cement mortar on the surface. This method has a poor appearance, the filling material is prone to aging, and it cannot effectively prevent rainwater penetration. When too much cement mortar and concrete residue falls into the gap, the resistance to elastic deformation deteriorates. When the temperature rises, the expansion and compression of the slabs on both sides causes the ground to arch. Construction quality control is difficult, and later repairs suffer from color differences between different batches of the same material, resulting in a poor appearance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a ground expansion joint sealing strip assembly that achieves better expansion and contraction sealing, has an attractive appearance, good anti-aging performance, and is convenient for construction and installation.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a ground expansion joint sealing strip assembly, comprising: an aluminum alloy pressure strip, and an approximately rectangular sealing strip assembled inside the aluminum alloy pressure strip and capable of elastic deformation; wherein, the vertical cross section of the approximately rectangular sealing strip has a top and bottom short side that are arc-shaped concave, and two side sides that are straight; the top of the aluminum alloy pressure strip has a staggered overlapping movable expansion joint; the approximately rectangular sealing strip vertically and elastically abuts against the left and right opposite first inner walls of the aluminum alloy pressure strip along its long side, and the approximately rectangular sealing strip is arc-shaped and concave along its short side, elastically abutting against the upper and lower opposite second inner walls of the aluminum alloy pressure strip.

[0006] Furthermore, the sealing strip assembly can be pre-embedded in the expansion joint of concrete road or between the expansion joints of two adjacent block material surfaces. Of course, it can also be applied in many fields such as tile bonding and flooring installation in interior decoration.

[0007] Furthermore, the sealing strip assembly is embedded in the expansion joint of the uncured concrete road surface; or the sealing strip assembly is fitted between the expansion joints of two adjacent block material surfaces. The installation method is simple.

[0008] Furthermore, when the aluminum alloy pressure strip is installed, its upper surface is 1mm-2mm lower than the upper surface of the concrete road or block surface. This provides a good straight-line appearance, and the upper and lower parts of the assembly cavity are reserved with space for the sealing strip to protrude when the ground expands and is squeezed on both sides, increasing the contact area between the sealing strip and the cavity sidewall and eliminating stress concentration during extrusion.

[0009] Furthermore, the aluminum alloy pressure strip has an internal deformation cavity that can accommodate a near-rectangular sealing strip. This protects the near-rectangular sealing strip, reduces acidic damage from external rainwater, and extends its service life.

[0010] Furthermore, the aluminum alloy strip is integrally bent into a rectangular strip from an aluminum alloy plate. Aluminum alloy possesses excellent straightness and aesthetic appeal.

[0011] Furthermore, a lower bent plate is connected to the first end of the top of the aluminum alloy pressure strip, and an upper bent plate is connected to the second end of the top of the aluminum alloy pressure strip; wherein the upper bent plate and the lower bent plate are staggered and overlapped with each other. This facilitates the embedding of an approximately rectangular sealing strip, while ensuring a tight seal, preventing dirt from entering the gaps, and enhancing the overall aesthetics.

[0012] Furthermore, the two opposing first inner walls are the two inner walls of the aluminum alloy strip distributed along the height direction; the two opposing second inner walls are the bottom inner wall and the lower bending plate of the aluminum alloy strip distributed along the width direction. The use of an elastic pressure-resisting method improves the sealing performance of expansion joints.

[0013] Furthermore, the approximately rectangular sealing strip is a rubber asphalt rod embedded in an aluminum alloy strip, possessing good elastic deformation capability.

[0014] Furthermore, the short side of the approximately rectangular sealing strip has a length between 15mm and 30mm, and is an arc-shaped recess with a maximum recess depth of 3mm to 5mm in the middle; the long side of the approximately rectangular sealing strip has a length between 50mm and 100mm. It offers diverse sizes to suit various application scenarios.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the sealing strip assembly of the present invention has good elastic deformation function, which can adapt to shrinkage or expansion at different temperatures and can effectively seal gaps; in addition, the sealing strip assembly has good straightness, which improves the overall aesthetics, prevents dirt and other substances from entering the gaps, keeps the gaps clean and tidy, and further improves the overall quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first embodiment of the sealing strip assembly of this application; Figure 2 This is a schematic diagram of a second embodiment of the sealing strip assembly of this application; Figure 3 This is a schematic diagram of the structure of the sealing strip assembly provided in the embodiments of this application; Figure reference numerals: 100. Concrete road surface; 200. Block material surface layer; 300. Cement mortar base layer. 10. Sealing strip assembly; 11. Aluminum alloy pressure strip; 12. Lower bending plate; 13. Upper bending plate; 14. Approximately rectangular sealing strip. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] To facilitate understanding of the sealing strip assembly provided in this application embodiment, its application scenario is first explained. Large-area concrete structures such as plaza block surfaces and industrial plant wear-resistant concrete floors are prone to arching and blackening at the joints during use, making cleaning difficult and affecting functionality and appearance. Due to thermal expansion and contraction, the gaps between the plaza block surface and the wear-resistant concrete exhibit different expansion and contraction changes in the high temperatures of summer and the low temperatures of winter. The expansion and contraction stress between the surface blocks can also cause cracks in the underlying base layer. Rainwater can then seep through these gaps to the underlying load-bearing layer, softening it and reducing its load-bearing capacity, leading to ground subsidence and water accumulation in some areas. Currently, the treatment for expansion joints in block surface floors involves leaving a 15mm-30mm wide gap, filling it with elastic materials such as asphalt-impregnated hemp fibers, and then applying a layer of cement mortar. This method has poor aesthetics, the filling material is prone to aging, and it cannot effectively prevent rainwater penetration. When too much cement mortar falls into the gap, the elasticity decreases, and when the temperature rises, the expansion and compression of the adjacent slabs cause the ground to arch, making construction quality control difficult. Therefore, this application provides a ground sealing strip assembly that achieves better expansion sealing, has an aesthetically pleasing appearance, good anti-aging properties, and is easy to install.

[0020] refer to Figure 1 As shown, Figure 1 This is a schematic diagram of a first embodiment of the sealing strip assembly of this application. Figure 1 As can be seen from the above, the sealing strip assembly provided in this application includes a sealing strip assembly 10 pre-embedded in the concrete road 100. When this sealing strip assembly 10 is used in the construction of the concrete road 100, the location of the expansion joint is first planned and determined, and fixed markings are made at both ends of the expansion joint. Concrete is poured on the ground, and when the concrete is nearing initial setting, a line is drawn along the two end markings, and the sealing strip assembly 10 is pressed into the concrete along the expansion joint location line. The pressing depth is adjusted to be slightly lower than the concrete surface by 1mm-2mm. Then, the concrete surface is finished and polished (grinded).

[0021] refer to Figure 2 As shown, Figure 2 This is a schematic diagram of a second embodiment of the sealing strip assembly of this application. Figure 2As can be seen from the above, the sealing strip assembly provided in this application includes a sealing strip assembly 10 installed in the block surface layer 200. This sealing strip assembly 10 is used in the construction of large-area plaza block surface layers 200. First, the location of the expansion joint is planned and determined, and fixed markings are made at both ends of the expansion joint. A sealing strip assembly 10 with a thickness close to the thickness of the block surface layer 200 is selected. The block bricks on one side of the expansion joint are laid first. A line is drawn according to the two marked points at the ends to temporarily fix the sealing strip assembly 10. The bottom of the sealing strip assembly 10 can be embedded in or adhered to the cement mortar base layer 300. The height of the sealing strip assembly 10 is adjusted to be slightly lower than the surface of the block brick by 1mm-2mm. Then, the block bricks on the other side are laid to achieve clamping and fixing.

[0022] Of course, in other embodiments of this application, the sealing strip assembly 10 can be applied to many fields such as tile adhesion and flooring installation in interior decoration. The sealing strip assembly 10 has good acid resistance, good weather resistance, beautiful appearance, good straightness, and can prevent dirt and other substances from entering the gaps, keeping the gaps clean, tidy, and aesthetically pleasing. It is suitable for temperature changes ranging from -45℃ to +60℃, thus coping with thermal expansion and contraction in cold winters and hot summers, and has good expansion and contraction performance.

[0023] Please refer to the above. Figure 3 As shown, the sealing strip assembly 10 includes: an aluminum alloy pressure strip 11, and an approximately rectangular sealing strip 14 that is assembled inside the aluminum alloy pressure strip 11 and can elastically deform; wherein, the vertical cross section of the approximately rectangular sealing strip 14 has a short side with a rounded concave shape on the top and bottom surfaces, and two straight sides. The approximately rectangular sealing strip 14 is a rubber asphalt rod embedded in the aluminum alloy pressure strip 11, which has a good elastic expansion and contraction effect, and uses rubber and asphalt as the main raw materials, and has good acid resistance and weather resistance.

[0024] The near-rectangular sealing strip 14 has a short side length between 15mm and 30mm, and a long side length between 50mm and 100mm. It offers a variety of sizes to suit various applications. Through the selection of different sizes, it can be used in different working conditions.

[0025] The top of the aluminum alloy pressure strip 11 has a staggered, overlapping, movable telescopic opening; the approximately rectangular sealing strip 14 vertically and elastically presses against the two opposite first inner walls of the aluminum alloy pressure strip 11 along its long side, and the approximately rectangular sealing strip 14 is arc-shaped and elastically presses against the two opposite second inner walls of the aluminum alloy pressure strip 11 along its short side. It is machined into an approximately rectangular shape and filled inside the aluminum alloy pressure strip 11. When the side plates expand, they squeeze the two ends of the approximately rectangular sealing strip 14 along its width, causing the approximately rectangular sealing strip 14 to deform and fill the cavity inside the aluminum alloy pressure strip 11; when the side plates contract, the approximately rectangular sealing strip 14 deforms and returns to its original shape, still maintaining a good sealing effect.

[0026] The aluminum alloy pressure strip 11 in this application has a deformation cavity inside that can accommodate the approximately rectangular sealing strip 14. When subjected to expansion and compression and cold contraction, the deformation cavity deforms accordingly, and the aluminum alloy pressure strip 11, which wraps around the approximately rectangular sealing strip 14, protects the approximately rectangular sealing strip 14, reduces acid damage to the approximately rectangular sealing strip 14 caused by external rainwater, and extends its service life.

[0027] The aluminum alloy pressure strip 11 is a rectangular strip formed by bending an aluminum alloy plate in one piece. Aluminum alloy offers good straightness and aesthetics. The aluminum alloy pressure strip 11 is made of 0.8mm-1.0mm thick aluminum alloy. Its width matches the short side length (15mm-30mm) of the approximate rectangular sealing strip 14 (16mm-31mm, 1mm larger than the corresponding model sealing strip), and its height matches the long side length (50mm-100mm) of the approximate rectangular sealing strip 14 (51mm-101mm, 1mm larger than the corresponding model sealing strip). The upper part adopts a non-fixed closed form with an overlapping structure. The aluminum alloy pressure strip 11, made of 0.8mm-1.0mm thick aluminum alloy, is factory-processed into a semi-finished product with excellent straightness and a pleasing appearance.

[0028] In the specific fabrication of the aluminum alloy pressure strip 11, a lower bent plate 12 is connected to the first end of the top of the aluminum alloy pressure strip 11, and an upper bent plate 13 is connected to the second end of the top of the aluminum alloy pressure strip 11; wherein, the upper bent plate 13 and the lower bent plate 12 are staggered and overlapped with each other. This facilitates the embedding of the approximately rectangular sealing strip 14, while ensuring a tight seal, preventing dirt from entering the gaps, and enhancing the overall aesthetics. The two opposing first inner walls are the two inner walls of the aluminum alloy pressure strip 11 distributed along the height direction; the two opposing second inner walls are the bottom inner wall of the aluminum alloy pressure strip 11 distributed along the width direction and the lower bent plate 12, respectively. The use of an elastic pressing method makes the sealing performance of the expansion joint better.

[0029] Therefore, during the use of the sealing strip assembly 10, the aluminum alloy pressure strip 11 remains tightly connected to the side panels on both sides, preventing dirt and debris from falling into the gaps. The upper part of the aluminum alloy pressure strip is straight, making surface cleaning convenient. The upper opening of the aluminum alloy pressure strip 11 adopts an overlapping, non-fixed closed design, allowing the approximately rectangular sealing strip 14 to easily pass through while maintaining a tight connection between the approximately rectangular sealing strip 14 and the aluminum alloy pressure strip 11. For the concrete road surface 100, when the concrete is nearing initial setting, the sealing strip assembly 10 is pressed into the concrete along a straight line and then compacted and smoothed a second time. For the block surface layer 200, after laying one side of the block bricks, the sealing strip assembly 10 is temporarily fixed, and then the other side of the block bricks is laid close to the sealing strip assembly 10, making installation convenient.

[0030] In this application, the sealing strip assembly 10 has good elastic deformation function, which can effectively seal the gap when it shrinks or expands at different temperatures; and the sealing strip assembly 10 has good straightness, which improves the overall aesthetics, prevents dirt and other substances from entering the gap, keeps the gap clean and tidy, and further improves the overall quality.

[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the framework of this disclosure, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this specification, which are not provided in detail for the sake of brevity.

[0032] Additionally, to simplify the description and discussion, and to avoid obscuring one or more embodiments of this specification, other known materials used for the ground may or may not be shown in the provided drawings. Furthermore, the apparatus may be illustrated in block diagram form to avoid obscuring one or more embodiments of this specification, and this also takes into account the fact that the details of implementation of these block diagram apparatuses are highly dependent on the platform on which one or more embodiments of this specification will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details have been set forth to describe exemplary embodiments of this disclosure, it will be apparent to those skilled in the art that one or more embodiments of this specification may be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0033] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

Claims

1. A ground expansion joint sealing strip assembly, characterized in that, include: An aluminum alloy pressure strip and an approximately rectangular sealing strip assembled inside the aluminum alloy pressure strip that can elastically deform; wherein, the vertical cross-section of the approximately rectangular sealing strip is such that the short sides of the top and bottom surfaces are arc-shaped recesses, and the two sides are straight; the top of the aluminum alloy pressure strip has a staggered overlapping movable telescopic opening; the approximately rectangular sealing strip vertically and elastically presses against the two opposite first inner walls of the aluminum alloy pressure strip along its long side, and the approximately rectangular sealing strip elastically presses against the two opposite second inner walls of the aluminum alloy pressure strip along its short side in an arc-shaped recess.

2. The ground expansion joint sealing strip assembly according to claim 1, characterized in that: The sealing strip assembly is pre-embedded in the expansion joint of concrete road or between the expansion joints of two adjacent block material surface layers.

3. A ground expansion joint sealing strip assembly according to claim 2, characterized in that: The sealing strip assembly is embedded in the expansion joint of the uncured concrete road; or the sealing strip assembly is fitted between the expansion joints of two adjacent block material surfaces.

4. A ground expansion joint sealing strip assembly according to claim 3, characterized in that: When the aluminum alloy pressure strip is installed, its upper surface is 1mm-2mm lower than the upper surface of the concrete road or block material surface.

5. A ground expansion joint sealing strip assembly according to any one of claims 1-4, characterized in that: The aluminum alloy pressure strip has a deformable cavity inside that can accommodate an approximately rectangular sealing strip.

6. A ground expansion joint sealing strip assembly according to any one of claims 1-4, characterized in that: The aluminum alloy pressure strip is formed by bending a sheet of aluminum alloy into a rectangular strip.

7. A ground expansion joint sealing strip assembly according to any one of claims 1-4, characterized in that: The top of the aluminum alloy pressure strip is connected to a lower bending plate at the first end, and the top of the aluminum alloy pressure strip is connected to an upper bending plate at the second end; wherein the upper bending plate and the lower bending plate are staggered and overlapped with each other.

8. A ground expansion joint sealing strip assembly according to claim 7, characterized in that: The two opposing first inner walls are the two inner walls of the aluminum alloy strip distributed along the height direction; the two opposing second inner walls are the bottom inner wall and the lower bending plate of the aluminum alloy strip distributed along the width direction.

9. A ground expansion joint sealing strip assembly according to any one of claims 1-4, characterized in that: The approximately rectangular sealing strip is a rubber asphalt rod embedded in an aluminum alloy pressure strip.

10. A ground expansion joint sealing strip assembly according to any one of claims 1-4, characterized in that: The short side of the approximately rectangular sealing strip is between 15mm and 30mm in length and has an arc-shaped indentation with a maximum indentation depth of 3mm to 5mm in the middle part; the long side of the approximately rectangular sealing strip is between 50mm and 100mm in length.

Images