An automatic filling floor armor joint

Abstract

The utility model provides a kind of automatic joint-filling floor armored joint, including first armored joint structural member and second armored joint structural member, the side surface lower end of first armored joint structural member is fixed with metal filling frame close to second armored joint structural member, metal filling frame inside hollow has filling cavity, and the split surface of first armored joint structural member is opened with extrusion notch in correspondence at metal filling frame top, and compressed flexible filler is compressed and filled in filling cavity, when first armored joint structural member and second armored joint structural member separate, the extrusion notch is extruded from and filled between first armored joint structural member and second armored joint structural member.The utility model structure design is reasonable, can open armored joint and automatically fill joint with first armored joint structural member and second armored joint structural member in early drying shrinkage stage of concrete, need not secondary joint-filling construction, can long-term maintain its expansion and sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to an automatic filling method for floor armor joints. Background Technology

[0002] In building construction, floor structures are prone to cracking due to factors such as temperature changes and concrete shrinkage. To control the generation and development of cracks, armored joints are usually installed. A typical armored joint design mainly consists of a metal frame and a partition space in the middle. The metal frame is fixed in the floor structure, and the partition space provides a buffer for the expansion and contraction of the floor.

[0003] However, this conventional design has many problems and drawbacks in practical applications. When the floor expands or contracts, causing the armor joints to open, the cracks become a breeding ground for dust and debris. This not only affects the aesthetics of the floor but may also hinder further expansion and contraction due to the debris, leading to additional stress concentration in the floor structure and exacerbating crack propagation. More importantly, conventional armor joints cannot self-fill after opening. To ensure the normal use and structural safety of the floor, secondary grouting is required. Secondary grouting not only increases labor and material costs but may also disrupt the normal use of the floor. For example, in some production workshops and shopping malls, secondary grouting can affect their normal operation.

[0004] The main reason for these problems is that conventional armored seams only consider providing space for floor expansion and contraction, but do not address the issue of filling cracks after they open, and lack the function of automatically filling cracks. Utility Model Content

[0005] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the existing technology, this utility model provides an automatic filling floor armor joint, which can open and automatically fill the joint during the early drying and shrinkage stage of concrete, without the need for secondary filling construction, and can maintain its expansion and sealing performance for a long time.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an automatic filling floor armor joint, including a first armor joint structure and a second armor joint structure, the surfaces of the first armor joint structure and the second armor joint structure being arranged opposite each other as their mating surfaces; a metal filling frame is fixed to the lower end of the side of the first armor joint structure near the second armor joint structure, the metal filling frame is hollow inside and has a filling cavity, and an extrusion groove is opened at the top of the metal filling frame corresponding to the mating surface of the first armor joint structure; the filling cavity is compressed and filled with a compressible flexible filler, which is extruded from the extrusion groove and filled between the first armor joint structure and the second armor joint structure when the first armor joint structure and the second armor joint structure are separated.

[0007] In the above scheme, a metal filling frame is designed based on the existing armor seam, and a compressible flexible filler is filled inside it. The compressible flexible filler is initially in a compressed state. When the armor seam opens, the compressible flexible filler returns to its original position, providing the filling action, eliminating the need for secondary filling construction.

[0008] Furthermore, the filling cavity has sidewalls on both sides of its vertical section perpendicular to the joint surface. These sidewalls connect the bottom surface of the filling cavity on the same side to the extrusion groove, and are angled relative to the plane of the extrusion groove. This angled design provides directional guidance for the sealant as it naturally expands and fills upwards. After filling, the angled design creates a self-locking effect, preventing the sealant from falling off.

[0009] Preferably, the cross-section is an isosceles trapezoid, narrower at the top and wider at the bottom. The two legs of the isosceles trapezoid form the side walls of the filling cavity, the lower base of the isosceles trapezoid forms the lower base of the filling cavity, and the upper base of the isosceles trapezoid forms the extrusion slot. Through the isosceles trapezoidal cross-section design, the hypotenuse creates a self-locking effect, effectively preventing the sealant from falling off. Simultaneously, it optimizes stress distribution to avoid cracking, and the trapezoidal space provides room for the sealant to expand naturally, allowing it to adapt to the shrinkage and deformation of the concrete, achieving continuous sealing without the need for secondary repairs. This connection structure ensures the strong connection between the material and the frame without restricting the material's extension movement when the armor seam opens.

[0010] Furthermore, the metal loading frame is integrally formed at the lower end of the first armor seam structure.

[0011] Furthermore, the armored seam includes a free-expansion sleeve, a force-transmitting plate, and a compartmentalized seam steel plate. The force-transmitting plate is fitted to the end of the free-expansion sleeve. The compartmentalized seam steel plate is fixed to the lower end of the second armored seam structure and has a mating hole through which the force-transmitting plate fits. When the armored seam opens, the first armored seam structure moves to the right, causing the compartmentalized seam steel plate to move to the right. The compartmentalized seam steel plate then causes the mating hole to move to the right relative to the force-transmitting plate.

[0012] Furthermore, the compartment seam steel plate has an L-shaped groove corresponding to the position of the metal loading frame to avoid interference with the metal loading frame. The L-shaped groove provides space for the metal loading frame, preventing interference at the position of the compartment seam steel plate.

[0013] Furthermore, the outer surface of the compressed flexible filler is covered with a wear-resistant protective layer.

[0014] Preferably, the compressible flexible filler is ethylene propylene diene monomer (EPDM) rubber, and the wear-resistant protective layer is a polytetrafluoroethylene (PTFE) layer. EPDM rubber is a high-elasticity, aging-resistant, acid and alkali-corrosion-resistant, and waterproof polymer composite material. It can be compressed and filled, and can elastically return to its original position, effectively filling expansion joints. The PTFE layer, wrapped around the compressible flexible filler, further enhances its wear resistance and extends its service life, making it suitable for armored joint construction sites with high pedestrian and vehicle traffic.

[0015] The beneficial effects of this utility model are as follows: The automatically filling armored joint of the floor provided by this utility model has a reasonable structural design. The compressible flexible material can automatically pop out and fill the gaps as the armored joint opens during the early drying and shrinkage stage of the concrete, effectively preventing the intrusion of dust, debris, and moisture, maintaining the cleanliness and aesthetics of the floor, and preventing the erosion of surrounding concrete by moisture and debris, thus greatly improving the structural stability and service life of the floor. Since the gaps can be automatically filled, there is no need for secondary filling construction, fundamentally reducing the manpower, material resources, and time costs required for secondary construction, and lowering the maintenance costs of the project. The compressible flexible material has good aging resistance and durability, and can maintain its expansion and sealing performance for a long time, reducing the need for repeated repairs due to the failure of the filling material, and extending the maintenance cycle of the floor. Furthermore, this solution involves a large-scale modification of the overall structure of the armored joint, and can be modified, manufactured, and installed based on conventional armored joints, making it easy to manufacture and install, and possessing broad practicality and promotional value. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the preferred embodiment of the present invention when the armor seam is not open.

[0018] Figure 2 This is a schematic diagram of the structure of the armor seam after it is opened in the preferred embodiment of this utility model.

[0019] In the figure: 1. Compressible flexible packing; 2. Metal packing frame; 3-1. First armored seam structure; 3-2. Second armored seam structure; 4. Anchor bolt; 5. Free expansion sleeve; 6. Force transmission plate; 7. Compartment seam steel plate; 7-1. L-shaped groove. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components relevant to the present invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0021] like Figure 1 and Figure 2 The automatic sealing joint of the floor armor shown is the preferred embodiment of this utility model.

[0022] The armored seam includes a first armored seam component 3-1 and a second armored seam component 3-2, with the surfaces of the first armored seam component 3-1 and the second armored seam component 3-2 facing each other as their mating surfaces. The first armored seam component 3-1 and the second armored seam component 3-2 may be made of ground joint protective flat steel, and anchor bolts 4 are installed on the outside of the ground joint protective flat steel.

[0023] A metal loading frame 2 is fixed to the lower side of the first armor seam structure 3-1 near the second armor seam structure 3-2. In this embodiment, it is preferred to integrally form the metal loading frame 2 at the lower end of the first armor seam structure 3-1. However, it is also possible to modify the existing first armor seam structure 3-1 according to actual needs, and weld the metal loading frame 2 to its lower part.

[0024] The metal loading frame 2 is hollow inside and has a loading cavity. An extrusion groove is opened at the top of the metal loading frame 2 corresponding to the splicing surface of the first armored seam structure 3-1. In the selection of the loading cavity, the two sides of the cross-section perpendicular to the splicing surface in the vertical direction are the sidewalls of the loading cavity. The sidewalls connect the bottom surface of the loading cavity on the same side to the extrusion groove, and the sidewalls are obliquely arranged relative to the plane where the extrusion groove is located. In the selection, the cross-section can preferably be an isosceles trapezoid that is narrower at the top and wider at the bottom. The two sides of the isosceles trapezoid are the sidewalls of the loading cavity, the lower base of the isosceles trapezoid is the lower base surface of the loading cavity, and the upper base of the isosceles trapezoid is the extrusion groove.

[0025] The filling cavity is filled with a compressed flexible filler 1. When the first armored seam structure 3-1 and the second armored seam structure 3-2 are separated, the compressed flexible filler 1 is extruded from the extrusion slot and fills the space between the first armored seam structure 3-1 and the second armored seam structure 3-2.

[0026] In material selection, the compressible flexible filler 1 is made of EPDM rubber. This material is designed for the opening characteristics of gaps during the early drying shrinkage stage of concrete. It is a high-elasticity, aging-resistant, acid and alkali corrosion-resistant, and waterproof polymer composite material that can be compressed and filled, and can elastically return to its original position, effectively filling expansion joints. Its initial state is compressed, tightly adhering to the inner wall of the metal frame. The partition space is designed in a trapezoidal shape (narrower at the top and wider at the bottom). This structure utilizes the beveled edges to create a self-locking effect, effectively preventing the filler material from falling off, while optimizing stress distribution to avoid cracking. Furthermore, the trapezoidal space provides the filler material with room for natural expansion, allowing it to adapt to concrete shrinkage and deformation, achieving continuous sealing without secondary repairs. This connection structure ensures the strong connection between the material and the frame without restricting the material's extension movement when the armored joint opens.

[0027] In actual filling, it is necessary to calculate the compression amplitude and filling volume of the flexible filler 1 based on the expected opening amount of the existing armor seam, so that after the armor seam opens, the flexible filler 1 can be reset to effectively fill the seam, but not so much as to bulge out of the top of the armor seam and cause surface protrusion.

[0028] Furthermore, a wear-resistant protective layer can be applied to the surface of the compressible flexible packing 1. The wear-resistant protective layer is preferably made of polytetrafluoroethylene (PTFE). The PTFE layer wrapping around the compressible flexible packing 1 further enhances its wear resistance and extends its service life, making it suitable for armored seam construction sites with high pedestrian and vehicle traffic.

[0029] Based on the above improvements, the armored seam includes a free-expansion sleeve 5, a force transmission plate 6, and a compartmentalized seam steel plate 7. The force transmission plate 6 is fitted to the end of the free-expansion sleeve 5. In actual production and construction, the force transmission plate 6 can be hung and positioned at the lower end of the first armored seam structure 3-1, that is, it is connected to the lower end of the metal filling frame 2. The compartmentalized seam steel plate 7 is fixed at the lower end of the second armored seam structure 3-2. The compartmentalized seam steel plate 7 has a mating hole, through which the force transmission plate 6 fits. When the armored seam opens, the first armored seam structure 3-1 moves to the right, causing the compartmentalized seam steel plate 7 to move to the right. The compartmentalized seam steel plate 7 causes the mating hole to move to the right relative to the force transmission plate 6.

[0030] The compartment seam steel plate 7 has an L-shaped groove 7-1 at the position corresponding to the metal loading frame 2, which avoids interference with the metal loading frame 2. The L-shaped groove 7-1 provides clearance for the metal loading frame 2, avoiding interference at the position of the compartment seam steel plate 7. After assembly and before the armor seam is opened, the L-shaped groove 7-1 is located on the lower and right sides of the metal loading frame, providing a certain positioning and support function for the lower end face of the metal loading frame 2.

[0031] Based on the above design, in order to meet the sealing design requirements of the armor seam, a sealing strip can be set at the contact point between the metal filling frame 2 and the compressed flexible filler 1 to further improve the sealing performance and prevent moisture from seeping into the interior of the flexible material and affecting its performance.

[0032] This automatically-filled cementitious joint design for concrete floors features a rational structural design. The compressible flexible filler 1 automatically pops out to fill the gaps as the cemented joint opens during the early drying and shrinkage stage of the concrete, effectively preventing the intrusion of dust, debris, and moisture, maintaining the cleanliness and aesthetics of the floor, and preventing the erosion of surrounding concrete by moisture and debris. This significantly improves the structural stability and service life of the floor. Because the gaps can be automatically filled, secondary filling is unnecessary, fundamentally reducing the manpower, material resources, and time costs required for secondary construction, and lowering maintenance costs. The compressible flexible filler 1 is made of high-polymer materials, possessing excellent aging resistance and durability, maintaining its expansion and sealing performance for a long time, reducing the need for repeated repairs due to filler material failure, and extending the floor's maintenance cycle. Furthermore, this solution involves large-scale modifications to the overall structure of the cemented joint, allowing for modification, production, and installation based on conventional cemented joints. It is easy to manufacture and install, and has broad practicality and promotional value.

[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic joint-sealing method for floor armor joints, characterized in that: It includes a first armor seam structure and a second armor seam structure, wherein the surfaces of the first armor seam structure and the second armor seam structure that are disposed opposite to each other are their mating surfaces; A metal filling frame is fixed to the lower side of the first armor seam component near the second armor seam component. The metal filling frame is hollow and has a filling cavity. An extrusion groove is opened at the top of the metal filling frame corresponding to the splicing surface of the first armor seam component. The filling cavity is filled with compressed flexible filler. When the first armor seam component and the second armor seam component are separated, the compressed flexible filler is extruded from the extrusion groove and fills the space between the first armor seam component and the second armor seam component.

2. The automatic joint-filling floor armor joint as described in claim 1, characterized in that: The filling cavity has side walls on both sides of its cross-section in the vertical direction and perpendicular to the splicing surface. The side walls connect the bottom surface of the filling cavity on the same side to the extrusion groove. The side walls are obliquely arranged relative to the plane where the extrusion groove is located.

3. The automatic joint-filling floor armor joint as described in claim 2, characterized in that: The cross-section is an isosceles trapezoid that is narrower at the top and wider at the bottom. The two sides of the isosceles trapezoid are the side walls on both sides of the filling cavity, the lower base of the isosceles trapezoid is the lower base surface of the filling cavity, and the upper base of the isosceles trapezoid is the extrusion slot.

4. The automatic joint-filling floor armor joint as described in claim 1, characterized in that: The metal loading frame is integrally formed at the lower end of the first armor seam structure.

5. The automatic joint-filling floor armor joint as described in claim 1, characterized in that: Includes free-expansion sleeves, force transmission plates, and compartment seam steel plates; The end of the free telescopic sleeve is fitted with a force transmission plate; The compartment seam steel plate is fixed to the lower end of the second armored seam structure. The compartment seam steel plate has a mating hole, through which the force transmission plate is fitted.

6. The automatic joint-filling floor armor joint as described in claim 5, characterized in that: The compartment seam steel plate has an L-shaped groove at the position corresponding to the metal loading frame to avoid the metal loading frame.

7. The automatic joint-filling floor armor joint as described in claim 1, characterized in that: The outer surface of the compression flexible filler is covered with a wear-resistant protective layer.

8. The automatic joint-filling floor armor joint as described in claim 7, characterized in that: The compression-flexible filler is EPDM rubber, and the wear-resistant protective layer is a PTFE layer.

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