A vibration isolation tie-in box for a floating floor and a floating floor

Abstract

The application provides a vibration isolation tie-in box for a floating floor and a floating floor, and belongs to the field of fabricated buildings. The floating floor comprises a bottom layer, a sound insulation layer and a surface layer. The sound insulation layer is laid on the bottom layer, and the surface layer is cast in place on the sound insulation layer. The vibration isolation tie-in box comprises a main body, a vibration absorption layer and a tie-in member. The main body has a closed damping chamber inside, and the vibration absorption layer is attached to the main body. The main body is embedded in the bottom layer, and one end of the tie-in member is installed in the main body in a fabricated manner and extends into the closed damping chamber, and the other end penetrates the sound insulation layer and is tied in the surface layer. The tie-in member and the main body of the vibration isolation tie-in box constrain the surface layer on the bottom plate, preventing the surface layer from cracking due to uneven local compression deformation of the material of the sound insulation layer. The vibration at the end of the tie-in member is blocked in the closed damping cavity of the main body, and the sound bridge between the main body is blocked by the vibration absorption layer, thereby simultaneously solving the cracking and sound insulation problems.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated buildings, and in particular relates to a vibration isolation tie box for floating floor slabs and a floating floor slab. Background Technology

[0002] With the introduction of mandatory national standards such as the "Residential Building Code" GB 55038-2025 specifying requirements for the impact sound insulation performance of residential floor slabs (e.g., weighted standardized impact sound pressure level L'nT,w ≤ 65dB), and the increasing energy-saving requirements of green buildings, floating floor insulation and soundproofing systems have been widely used in newly constructed residential buildings. This system involves laying an elastic thermal and sound-insulating pad on the floor slab structure, followed by a fine-aggregate concrete protective layer, and installing vertical sound-insulating strips between the protective layer and the surrounding walls, forming a "mass-spring-mass" vibration isolation system. This simultaneously achieves effective isolation of impact sound and floor insulation. In a floating floor, the building surface layer and the structural floor slab are completely separated by the thermal and sound insulation layer, much like a ship floating on water, hence the name "floating floor." However, what was originally intended as a public welfare project to solve thermal and sound insulation issues has become a major area of ​​quality problems. Numerous engineering projects have demonstrated that floating floor slabs commonly suffer from surface cracking and arching, causing widespread public health problems.

[0003] The reason lies in the fact that the insulation and sound insulation layers of the sandwich structure are tightly bonded together. Stress concentration occurs due to the mismatch in properties between the two materials and the lack of interfacial constraint. The core functional layer of the floating floor system—the insulation and sound insulation pad—is typically composed of flexible materials with low elastic modulus, such as expanded polystyrene (EPS), extruded polystyrene (XPS), polyurethane, rubber-plastic composites, or various other composite materials. The upper fine-aggregate concrete protective layer, however, is a rigid material with an elastic modulus far higher than the lower pad. According to DB32 / T3921-2020, to prevent sound bridges, there is no rigid connection between the protective layer and the lower structural floor slab; it is completely "floating" on top of the elastic pad. This structure means that the shrinkage deformation of the protective layer under load, temperature, and humidity changes cannot be effectively constrained by the lower structural floor slab. Its deformation is almost entirely resisted by its own tensile strength and the support of the lower pad. When the local compression deformation of the lower flexible pad is uneven or the support stiffness is insufficient, tensile stress is easily induced at the bottom of the protective layer, leading to cracking. Some manufacturers combine the two materials together, but this still cannot completely solve the problem of cracking and arching of the building surface.

[0004] Current standards primarily rely on placing single or double layers of wire mesh within the protective layer to improve crack resistance. However, this measure is essentially a "passive resistance" to crack propagation. On one hand, the vertical positioning of the wire mesh is difficult to control precisely during construction; if the position is too low, its crack-resistant effect will be greatly reduced. On the other hand, the mesh cannot address initial cracks originating at the bottom of the protective layer caused by uneven deformation of the underlying subbase. Although the standards also propose setting expansion joints or post-cut joints to release stress, this is considered "crack resistance through joints," which compromises the integrity of the ground, affects aesthetics, and is limited in areas with waterproofing requirements such as kitchens and bathrooms; it is not a fundamental solution. Therefore, this invention was developed.

[0005] It should be noted that the information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] One objective of this invention is to provide a connector that solves the connection problem and vibration and sound insulation problem between the surface layer and the structural floor slab of a floating floor slab building; The second objective of this invention is to provide a floating floor slab that prevents cracking and blocks sound insulation.

[0007] To achieve one of the above objectives, the present invention first provides a vibration isolation tie box for floating floor slabs. The floating floor slab includes a bottom layer, a sound insulation layer, and a surface layer. The sound insulation layer is laid on the bottom layer, and the surface layer is cast-in-place on the sound insulation layer. The vibration isolation tie box includes a main body, a vibration damping and absorbing layer, and tie members. The main body has a closed vibration damping chamber inside, and the vibration damping and absorbing layer is attached to the main body. The main body is embedded in the bottom layer, and one end of the tie member is assembled and installed in the main body and extends into the closed vibration damping chamber, while the other end penetrates the sound insulation layer and is tied to the surface layer.

[0008] Preferably, the vibration damping and absorbing layer is attached to the inner wall and / or outer wall of the body.

[0009] Preferably, the vibration damping and absorbing layer is attached to the outer wall of the main body, and its top elevation is flush with the top surface of the bottom layer.

[0010] Preferably, the tie member is mounted to the main body via a first mounting assembly; the first mounting assembly includes a first washer and a first nut, the first nut being fixed to the first washer, and the first washer being fixed to the vibration damping and absorbing layer on the inner wall of the main body; one end of the tie member is provided with a threaded section, the threaded section of the tie member passing through the main body and the vibration damping and absorbing layer and being threadedly connected to the first nut.

[0011] Preferably, the tie member includes a tie mounting section and a tie anchor claw section. The tie mounting section is assembled and installed on the main body and extends into the closed vibration damping chamber. The tie anchor claw section is formed on the tie mounting section and anchored to the surface layer.

[0012] Preferably, the vibration isolation tie box further includes a bolted member, which is disposed in the main body and bolted to the bottom layer; one end of the bolted member extends into the closed vibration damping chamber and forms a blockage with the tie member.

[0013] Preferably, the bolt is mounted to the main body via a second mounting assembly; the second mounting assembly includes a second washer and a second nut, the second nut being fixed to the second washer, and the second washer being fixed to the vibration damping and absorbing layer on the inner wall of the main body; one end of the bolt is provided with a threaded section, the threaded section of the bolt passing through the main body and the vibration damping and absorbing layer and being threadedly connected to the second nut.

[0014] Preferably, the bolted component includes a bolted mounting section and a bolted anchor claw section. The bolted mounting section is assembled onto the main body and extends into the enclosed vibration damping chamber. The bolted anchor claw section is formed on the bolted mounting section and anchored to the bottom layer.

[0015] Preferably, the main body is a hexahedron with an opening, and a rear sealing plate is attached to the opening. The closed vibration damping chamber is implemented as a closed space enclosing the interior of the main body.

[0016] To achieve the above two objectives, the present invention provides a floating floor slab, comprising a base layer, a sound insulation layer, a surface layer, and a plurality of vibration isolation tie boxes for the floating floor slab; the sound insulation layer is laid on the base layer, the surface layer is cast in place on the sound insulation layer, the main body of the vibration isolation tie boxes for the floating floor slab is embedded in the base layer, the tie members penetrate the sound insulation layer and are tied to the surface layer, and the surface layer is constrained by the base layer through the vibration isolation tie boxes for the floating floor slab.

[0017] The technical effects of the above-mentioned technical solutions of the present invention arise from one or more of the following combinations: This application uses the tie-in components and main body of the vibration isolation tie box to constrain the surface layer to the base plate, preventing the panel from cracking due to uneven local compression deformation of the sound insulation layer material; and it blocks the vibration at the end of the tie-in component in the closed vibration damping cavity of the main body, and blocks the sound bridge between the tie-in component and the main body through the vibration absorption layer, thereby simultaneously solving the two core problems of "the connection problem between the building surface layer and the structural floor slab" and "the vibration sound insulation problem, that is: the vibration of the building surface layer will not be transmitted to the structural floor slab".

[0018] The floating floor slab establishes controllable constraints between the structural layer (bottom layer) and the surface layer through "vibration isolation tie boxes." When the sound insulation layer undergoes uneven compression deformation due to local loads or material creep, the tie boxes actively "hold" the upper surface layer, effectively transferring the constraint force of the bottom layer on the panel upwards. This significantly limits the bending and shear stresses in the surface layer caused by the deformation of the "soft foundation," thereby actively preventing and fundamentally suppressing cracking and overcoming the shortcomings of existing technologies that rely solely on wire mesh to "passively resist" cracks. Multiple evenly distributed vibration isolation tie boxes create multiple uniformly distributed constraint points within the surface layer, transforming the stress on the surface layer from a traditional, uncontrollable state entirely determined by the flexible padding layer to a controllable and designable elastic support state. This not only prevents cracking but also improves the overall stiffness and stability of the entire floating floor slab system.

[0019] The end of the bolted component in this application also extends into the closed vibration-damping cavity of the main body, and blocks the acoustic bridge with the end of the tie component.

[0020] During installation, the main body is first embedded in the bottom layer, and then the tie-up components are installed on site. The first washer and the first nut of the tie-up component are fixed to the inner wall of the main body or the vibration damping and absorption layer of the inner wall in advance. During installation, simply pass the tie-up installation section through the sound insulation layer, align it with the installation hole of the main body, and then pass it through the vibration damping and absorption layer to install it on the first nut. By placing the process in the factory and handing over the simple installation process to the on-site construction personnel, the construction requirements are greatly reduced. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the vibration isolation tie box for floating floor slabs of the present invention.

[0022] Figure 2 This is a structural disassembly diagram of the vibration isolation tie box for floating floor slabs of the present invention.

[0023] Figure 3 This is a schematic diagram of the installation of the first and second mounting components in the vibration isolation tie box for floating floor slabs of the present invention.

[0024] Figure 4 This is a diagram showing the reinforcement arrangement of the vibration isolation tie box, bottom plate, and top plate for the floating floor slab of this invention.

[0025] Figure 5 This is an installation effect diagram of the vibration isolation tie box for floating floor slabs according to the present invention in a floating floor slab.

[0026] Figure 6 This is a schematic diagram of the installation of the tie-up components of the vibration isolation tie-up box in the floating floor slab of the present invention.

[0027] Figure 7 This is an installation layout diagram of the vibration isolation tie box in the floating floor slab of the present invention.

[0028] Figure 8 This is a schematic diagram of the structure of the floating floor slab of the present invention.

[0029] The components are as follows: 1. Vibration isolation tie box; 10. Enclosed vibration damping chamber; 11. Main body; 111. Rear sealing plate; 12. Tie member; 121. Tie installation section; 122. Tie anchor claw section; 123. First gasket; 124. First nut; 13. Bolted member; 131. Bolted installation section; 132. Bolted anchor claw section; 133. Second gasket; 134. Second nut; 14. Vibration damping and absorption layer; 14a. Outer wall vibration damping and absorption layer; 14b. Inner wall vibration damping and absorption layer; 2. Bottom layer; 21. Bottom layer steel mesh; 3. Sound insulation layer; 4. Top layer; 41. Top layer steel mesh. Detailed Implementation

[0030] The following description is provided to enable those skilled in the art to implement and use the invention and adapt it to specific application contexts. Various modifications and uses in different applications will be readily apparent to those skilled in the art, and the general principles defined herein are applicable to a wide range of embodiments. Therefore, the invention is not limited to the embodiments given herein, but should be granted the broadest scope consistent with the principles and novel features disclosed herein.

[0031] In the following detailed description, numerous specific details are set forth to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that practice of the invention is not necessarily limited to these specific details. In other words, well-known structures and devices are shown in block diagram form without being depicted in detail to avoid obscuring the invention.

[0032] Readers should note all documents and references submitted concurrently with this specification and open to public inspection, the contents of which are incorporated herein by reference. Unless otherwise expressly stated, all features disclosed in this specification (including any appended claims, abstracts, and drawings) may be replaced by alternative features for the same, equivalent, or similar purposes. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features.

[0033] Note that, where used, the markings vertical, horizontal, left, right, front, back, top, bottom, front, back, clockwise, and counterclockwise are used merely for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative position and / or orientation between the various parts of an object. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Note that, in practice, "further," "preferably," "even further," and "more preferably" are simply starting points for describing another embodiment based on the foregoing embodiments. The combination of the content following "further," "preferably," "even further," or "more preferably" with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment can form yet another embodiment.

[0036] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0037] "And / or" in parallel: means "both A and B"; "or" in alternative: means "either A or B"; "and / or" in combination: means "both A and B, and either A or B".

[0038] Structural Example 1: Please combine Figures 1-8 This embodiment provides a vibration isolation tie box for a floating floor slab. The floating floor slab includes a bottom layer 2, a sound insulation layer 3, and a surface layer 4. The sound insulation layer 3 is laid on the bottom layer 2, and the surface layer 4 is cast-in-place on the sound insulation layer 3. The vibration isolation tie box 1 includes a main body 11, a vibration damping and absorption layer 14, and a tie member 12. The main body 11 has a closed vibration damping chamber 10 inside, and the vibration damping and absorption layer 14 is attached to the main body 11. The main body 11 is embedded in the bottom layer 2, and one end of the tie member 12 is assembled and installed in the main body 11 and extends into the closed vibration damping chamber 10, while the other end passes through the sound insulation layer 3 and is tied in the surface layer 4.

[0039] Please refer to Figure 1 and... Figure 2The main body 11 of the vibration isolation tie box 1 serves as the main structural load-bearing component. Its structure is preferably implemented as a hexahedron. The main body 11 has an opening, which is sealed with a rear sealing plate 111. The enclosed vibration damping chamber 10 is implemented as a closed space enclosing the interior of the main body 11. Specifically, during production, the main body 11 is formed by cutting, stamping, or welding metal material into a hexahedron with an opening, one of which is sealed by the rear sealing plate 111. Furthermore, a vibration damping and absorption layer 14 is attached to the inner and / or outer walls of the main body 11. As a preferred embodiment, the vibration damping and absorption layer 14 is attached to both the inner and outer walls of the main body 11.

[0040] Specifically, when the shock-absorbing layer is attached to the inner wall of the main body 11, it is implemented as the inner wall shock-absorbing layer 14b, and when it is attached to the outer wall of the main body 11, it is implemented as the outer wall shock-absorbing layer 14a.

[0041] Furthermore, in floating floor slabs, such as Figure 2 , Figure 5 As shown, the vibration damping and absorption layer 14 is attached to the outer wall of the main body 11 as the outer wall vibration damping and absorption layer 14a, and its top elevation is flush with the top surface of the bottom layer 2.

[0042] Please combine Figure 3 , Figure 5 In this embodiment, the surface layer 4 is constrained by the bottom layer 2 through the tie member 12 and the main body 11, thereby achieving force transmission and preventing cracking of the surface layer 4. Specifically, the tie member 12 is installed on the main body 11 through a first mounting assembly. Further, the first mounting assembly includes a first washer 123 and a first nut 124. The first nut 124 is fixed to the first washer 123, and the first washer 123 is fixed to the vibration damping and absorbing layer 14 on the inner wall of the main body 11. One end of the tie member 12 is provided with a threaded section, which penetrates the main body 11 and the vibration damping and absorbing layer 14 and is threadedly connected to the first nut 124.

[0043] Furthermore, the tie member 12 includes a tie installation section 121 and a tie anchor claw section 122. The tie installation section 121 is assembled and installed on the main body 11 and extends into the closed vibration damping chamber 10. The tie anchor claw section 122 is formed on the tie installation section 121 and anchored to the surface layer 4.

[0044] In practical implementation, the anchor claw section 122 is formed by bending a steel bar and is welded to the anchor installation section 121. The anchor installation section 121 uses a straight steel bar with a threaded end. Correspondingly, a through hole is made in the main body 11 for the anchor installation section 121 to pass through. Inside the main body 11, the first gasket 123 and the first nut 124 are welded and fixed into a whole, and then temporarily attached to the vibration-damping and absorbing layer 14 on the inner wall of the main body 11. During installation, the holes in the main body 11, the first gasket 123, the first nut 124, and the vibration-damping and absorbing layer 14 correspond to each other. The vibration-damping and absorbing layer 14 is often made of elastic rubber, such as butyl rubber or EPDM rubber. It has a cross-shaped hole, which, when penetrated by the threaded section, provides stability and sealing.

[0045] Preferably, the first gasket 123 is a metal gasket or a high-strength composite material gasket, and the metal gasket can be a steel gasket.

[0046] Please combine Figure 3 , Figure 4 and Figure 5 In this embodiment, the vibration isolation tie box 1 further includes a bolted member 13, which is disposed on the main body 11 and bolted to the bottom layer 2. One end of the bolted member 13 extends into the closed vibration damping chamber 10 and forms a blockage with the tie member 12. Specifically, the bolted member 13 is installed on the main body 11 via a second mounting assembly. The second mounting assembly includes a second washer 133 and a second nut 134. The second nut 134 is fixed to the second washer 133, and the second washer 133 is fixed to the vibration damping and absorption layer 14 (i.e., the inner wall vibration damping and absorption layer 14b) on the inner wall of the main body 11. One end of the bolted member 13 is provided with a threaded section, which penetrates the main body 11 and the vibration damping and absorption layer 14 and is threadedly connected to the second nut 134. Similarly, the bolted member 13 includes a bolted installation section 131 and a bolted anchor claw section 132. The bolted installation section 131 is assembled and installed on the main body 11 and extends into the closed vibration damping chamber 10. The bolted anchor claw section 132 is formed on the bolted installation section 131 and anchored to the bottom layer 2.

[0047] In practical implementation, the bolted anchor claw section 132 is formed by bending a steel bar and is welded to the bolted installation section 131. The bolted installation section 131 uses a straight steel bar, with the end threaded to form a threaded section. Correspondingly, a through hole is opened on the side of the main body 11 for the bolted installation section 131 to pass through. Inside the main body 11, the second washer 133 and the second nut 134 are welded and fixed together to form a whole, and then temporarily adhered to the vibration-damping and absorbing layer 14 on the inner wall of the main body 11. During installation, the holes on the side of the main body 11, the second washer 133, the second nut 134, and the vibration-damping and absorbing layer 14 correspond to each other. The vibration-damping and absorbing layer 14 is often made of elastic rubber, such as butyl rubber or EPDM rubber. It has a cross-shaped hole, which, when penetrated by the threaded section, provides stability and a seal.

[0048] Preferably, the second gasket 133 is a metal gasket or a high-strength composite material gasket, and the metal gasket can be a steel gasket.

[0049] In this embodiment, the tie anchor claw section 122 and tie mounting section 121 of the tie member 12, together with the main body 11 and the bolted anchor claw section 132 and bolted mounting section 131, transmit the force of the surface layer 4 to the bottom layer 2. However, the ends of the tie mounting section 121 and the bolted mounting section 131 are disconnected in the vibration damping cavity, and the main body 11, which transmits the force, is attached to the vibration absorption layer 14 to absorb the vibration. The ends of the tie mounting section 121 and the bolted mounting section 131 are completely disconnected in the vibration damping cavity and do not transmit vibration; however, the surface layer 4 can be prevented from cracking by being constrained by the bottom layer 2 through the vibration isolation tie box 1.

[0050] Furthermore, a bottom layer steel mesh 21 and a top layer steel mesh 41 are respectively laid in the bottom layer 2 and the top layer 4. This is a common technique for concrete slabs and will not be described in detail here. This method is a preferred embodiment and is not the only limitation of this embodiment. Structural Example 2: Please refer to Figure 1~ Figure 8 This embodiment provides a floating floor slab, the structure of which includes a bottom layer 2, a sound insulation layer 3, a surface layer 4, and multiple vibration isolation tie boxes for floating floor slabs as described in Structural Embodiment 1. The sound insulation layer 3 is laid on the bottom layer 2, the surface layer 4 is cast-in-place on the sound insulation layer 3, the main body 11 of the vibration isolation tie box for the floating floor slab is embedded in the bottom layer 2, and tie members 12 penetrate the sound insulation layer 3 and are tied to the surface layer 4. The surface layer 4 is constrained by the bottom layer 2 through the vibration isolation tie box for the floating floor slab.

[0051] The vibration isolation tie box 1 includes a main body 11, a vibration damping and absorption layer 14, and a tie member 12; the main body 11 has a closed vibration damping chamber 10 inside, and the vibration damping and absorption layer 14 is attached to the main body 11; the main body 11 is embedded in the bottom layer 2, one end of the tie member 12 is assembled and installed in the main body 11 and extends into the closed vibration damping chamber 10, and the other end passes through the sound insulation layer 3 and is tied in the surface layer 4.

[0052] The main body 11 of the vibration isolation tie box 1 serves as the main structural load-bearing component. Its structure is preferably implemented as a hexahedron. The main body 11 has an opening, which is sealed with a rear sealing plate 111. The enclosed vibration damping chamber 10 is implemented as a closed space enclosing the interior of the main body 11. Specifically, during production, the main body 11 is formed by cutting, stamping, or welding metal material into a hexahedron with an opening, one of which is sealed by the rear sealing plate 111.

[0053] Furthermore, the vibration damping layer 14 is attached to the inner wall and / or outer wall of the main body 11. In a preferred embodiment of this invention, the vibration damping layer 14 is attached to both the inner and outer walls of the main body 11. Specifically, when attached to the inner wall of the main body 11, it is implemented as an inner wall vibration damping layer 14b, and when attached to the outer wall of the main body 11, it is implemented as an outer wall vibration damping layer 14a.

[0054] Furthermore, in floating floor slabs, such as Figure 2 , Figure 5 As shown, the vibration damping and absorption layer 14 is attached to the outer wall of the main body 11 as the outer wall vibration damping and absorption layer 14a, and its top elevation is flush with the top surface of the bottom layer 2.

[0055] Please combine Figure 3 , Figure 5 In this embodiment, the surface layer 4 is constrained by the bottom layer 2 through the tie member 12 and the main body 11, thereby achieving force transmission and preventing cracking of the surface layer 4. Specifically, the tie member 12 is installed on the main body 11 through a first mounting assembly. Further, the first mounting assembly includes a first washer 123 and a first nut 124. The first nut 124 is fixed to the first washer 123, and the first washer 123 is fixed to the vibration damping and absorbing layer 14 on the inner wall of the main body 11. One end of the tie member 12 is provided with a threaded section, which penetrates the main body 11 and the vibration damping and absorbing layer 14 and is threadedly connected to the first nut 124.

[0056] Furthermore, the tie member 12 includes a tie installation section 121 and a tie anchor claw section 122. The tie installation section 121 is assembled and installed on the main body 11 and extends into the closed vibration damping chamber 10. The tie anchor claw section 122 is formed on the tie installation section 121 and anchored to the surface layer 4.

[0057] In practical implementation, the anchor claw section 122 is formed by bending a steel bar and is welded to the anchor installation section 121. The anchor installation section 121 uses a straight steel bar with a threaded end. Correspondingly, a through hole is made in the main body 11 for the anchor installation section 121 to pass through. Inside the main body 11, the first gasket 123 and the first nut 124 are welded and fixed into a whole, and then temporarily attached to the vibration-damping and absorbing layer 14 on the inner wall of the main body 11. During installation, the holes in the main body 11, the first gasket 123, the first nut 124, and the vibration-damping and absorbing layer 14 correspond to each other. The vibration-damping and absorbing layer 14 is often made of elastic rubber, such as butyl rubber or EPDM rubber. It has a cross-shaped hole, which, when penetrated by the threaded section, provides stability and sealing.

[0058] Preferably, the first gasket 123 is a metal gasket or a high-strength composite material gasket, and the metal gasket can be a steel gasket.

[0059] Please combine Figure 3 , Figure 4 and Figure 5 In this embodiment, the vibration isolation tie box 1 further includes a bolted member 13, which is disposed on the main body 11 and bolted to the bottom layer 2. Specifically, the bolted member 13 is installed on the main body 11 via a second mounting assembly. The second mounting assembly includes a second washer 133 and a second nut 134. The second nut 134 is fixed to the second washer 133, and the second washer 133 is fixed to the vibration damping and absorbing layer 14 (i.e., the inner wall vibration damping and absorbing layer 14b) on the inner wall of the main body 11. One end of the bolted member 13 is provided with a threaded section, which penetrates the main body 11 and the vibration damping and absorbing layer 14 and is threadedly connected to the second nut 134. Similarly, for the tie member 12, the bolted member 13 includes a bolted mounting section 131 and a bolted anchor claw section 132. The bolted mounting section 131 is assembled and installed on the main body 11 and extends into the closed vibration damping chamber 10. The bolted anchor claw section 132 is formed on the bolted mounting section 131 and anchored to the bottom layer 2.

[0060] In practical implementation, the bolted anchor claw section 132 is formed by bending a steel bar and is welded to the bolted installation section 131. The bolted installation section 131 uses a straight steel bar, with the end threaded to form a threaded section. Correspondingly, a through hole is opened on the side of the main body 11 for the bolted installation section 131 to pass through. Inside the main body 11, the second washer 133 and the second nut 134 are welded and fixed together to form a whole, and then temporarily adhered to the vibration-damping and absorbing layer 14 on the inner wall of the main body 11. During installation, the holes on the side of the main body 11, the second washer 133, the second nut 134, and the vibration-damping and absorbing layer 14 correspond to each other. The vibration-damping and absorbing layer 14 is often made of elastic rubber, such as butyl rubber or EPDM rubber. It has a cross-shaped hole, which, when penetrated by the threaded section, provides stability and a seal.

[0061] Preferably, the second gasket 133 is a metal gasket or a high-strength composite material gasket, and the metal gasket can be a steel gasket.

[0062] In this embodiment, the tie anchor claw section 122 and tie mounting section 121 of the tie member 12, together with the main body 11 and the bolted anchor claw section 132 and bolted mounting section 131, transmit the force of the surface layer 4 to the bottom layer 2. However, the ends of the tie mounting section 121 and the bolted mounting section 131 are disconnected in the vibration damping cavity, and the main body 11, which transmits the force, is attached to the vibration absorption layer 14 to absorb the vibration. The ends of the tie mounting section 121 and the bolted mounting section 131 are completely disconnected in the vibration damping cavity and do not transmit vibration; however, the surface layer 4 can be prevented from cracking by being constrained by the bottom layer 2 through the vibration isolation tie box 1.

[0063] Furthermore, a bottom layer steel mesh 21 and a top layer steel mesh 41 are respectively laid in the bottom layer 2 and the top layer 4. This is a common technique for concrete slabs and will not be described in detail here. This method is a preferred embodiment and is not the only limitation of this embodiment.

[0064] Compared to existing floating floor slabs with no connection, the project found a cracking risk of nearly 100%. The reasons for the cracking are: (1) The structural concept of crack resistance emphasizes connection, such as beam-column connection and beam-slab connection. This "floating" surface layer construction violates the basic principles of the structural concept. (2) The "floating" surface layer is generally 40mm thick and only equipped with φ4 steel wire mesh inside. Since the commonly used "floating" sound insulation pad is cross-linked polyethylene pad (low density, poor strength, large deformation, and closed pores are easy to break under load...), uneven settlement deformation will occur under small loads, superimposed with temperature deformation. When the slab area exceeds 2m*2m, cracking and arching problems will occur. However, by using the technology of this invention, the cracked area can be reduced by more than 95%, or the deformation resistance can be increased by more than 95%.

[0065] Existing technologies directly penetrate the sound insulation layer with tie rods, connecting the surface layer and the bottom layer. This is a rigid connection, similar to an air conditioner in a rooftop equipment room where the air conditioner is placed directly on a steel plate on a foundation, which is then rigidly connected to the roof with a monolithic concrete structure. The air conditioner's vibrations can penetrate the steel plate, directly transmitting to the foundation and then to the entire roof, offering no vibration damping or sound insulation effect—making it an ineffective measure. The enclosed chamber structure of this embodiment uses a flexible connection, similar to a rubber vibration damping layer between the air conditioner and the foundation. This dampens the air conditioner's vibrations within the rubber layer, preventing transmission to the foundation and, moreover, the roof.

[0066] Please combine Figure 2 and Figure 3 The transmission and blocking process of vibration sound waves in the closed vibration damping chamber 10 is as follows: “Vibration source” – “Surface layer 4” – “Tethering anchor claw section 122” – “Tethering installation section 121” – “First nut 124” – “First gasket 123” – Horizontal “Inner wall vibration damping and absorption layer 14b” (first vibration sound wave blocking) – “Main body 11” – Vertical “Inner wall vibration damping and absorption layer 14b” (second vibration sound wave blocking) – “Second gasket 133” – “Second nut 134” – “Bolt installation section 131” – “Outer wall vibration damping and absorption layer 14a” (third vibration sound wave blocking) – “Bolt anchor claw section 132” – “Bottom layer 2”.

[0067] The function of the enclosed vibration damping chamber 10 is to disconnect the "tie member 12" and the "bolted member 13" within the enclosed chamber, so that they do not come into direct contact, but can only be connected through the "inner wall vibration damping and absorption layer 14b", which plays a similar role to the vibration isolation pad between the roof equipment foundation and the air conditioner.

[0068] As a functional limitation of this embodiment, the functional control index of the vibration damping and absorption layer is density, preferably 500~1000 kg / m³. 3 In practice, the density is less than 500 kg / m³. 3 Excessive deformation can cause it to be flattened and "hardened," turning it into a "rigid body" that transmits vibrations directly downwards, reducing its damping effect; a density greater than 1000 kg / m³ 3 This can lead to insufficient deformation, turning the body into a "rigid body" that transmits vibrations directly downwards, reducing the damping effect.

[0069] The vibration reduction principle in this embodiment is to convert external vibration sound into internal friction heat energy by relying on the high elastic modulus of the vibration absorption layer itself, thus consuming vibration energy. For example, in the equipment room on the roof, rubber sound insulation pads are set between the equipment foundation and the air conditioner, which can effectively transfer the load of the air conditioner to the equipment foundation and effectively block the vibration of the air conditioner from reaching the equipment.

[0070] Furthermore, the present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A vibration isolation tie box for a floating floor slab, the floating floor slab comprising a base layer, a sound insulation layer, and a surface layer, the sound insulation layer being laid on the base layer, and the surface layer being cast-in-place on the sound insulation layer; characterized in that, The vibration isolation tie box includes a main body, a vibration damping and absorption layer, and a tie member; the main body has a closed vibration damping chamber inside, and the vibration damping and absorption layer is attached to the main body; the main body is embedded in the bottom layer, and one end of the tie member is assembled and installed in the main body and extends into the closed vibration damping chamber, while the other end passes through the sound insulation layer and is tied to the surface layer.

2. The vibration isolation tie box for floating floor slabs as described in claim 1, characterized in that: The vibration damping and absorption layer is attached to the inner wall and / or outer wall of the main body.

3. The vibration isolation tie box for floating floor slabs as described in claim 2, characterized in that: The vibration damping and absorbing layer is attached to the outer wall of the main body, and its top elevation is flush with the top surface of the bottom layer.

4. The vibration isolation tie box for floating floor slabs as described in claim 2, characterized in that: The tie member is installed on the main body via a first mounting assembly; the first mounting assembly includes a first washer and a first nut, the first nut is fixed on the first washer, and the first washer is fixed to the vibration damping and absorbing layer on the inner wall of the main body; one end of the tie member is provided with a threaded section, the threaded section of the tie member passes through the main body and the vibration damping and absorbing layer and is threadedly connected to the first nut.

5. The vibration isolation tie box for floating floor slabs as described in claim 4, characterized in that: The tie member includes a tie installation section and a tie anchor claw section. The tie installation section is assembled and installed on the main body and extends into the closed vibration damping chamber. The tie anchor claw section is formed on the tie installation section and anchored to the surface layer.

6. The vibration isolation tie box for floating floor slabs as described in claim 2, characterized in that: The vibration isolation tie box also includes a bolted member, which is disposed in the main body and bolted to the bottom layer; one end of the bolted member extends into the closed vibration damping chamber and forms a blockage with the tie member.

7. The vibration isolation tie box for floating floor slabs as described in claim 6, characterized in that: The bolted connector is mounted to the main body via a second mounting assembly; the second mounting assembly includes a second washer and a second nut, the second nut being fixed to the second washer, and the second washer being fixed to the vibration damping and absorbing layer on the inner wall of the main body; one end of the bolted connector is provided with a threaded section, the threaded section of the bolted connector passing through the main body and the vibration damping and absorbing layer and being threadedly connected to the second nut.

8. The vibration isolation tie box for floating floor slabs as described in claim 7, characterized in that: The bolted component includes a bolted mounting section and a bolted anchor claw section. The bolted mounting section is assembled and installed on the main body and extends into the enclosed vibration damping chamber. The bolted anchor claw section is formed on the bolted mounting section and anchored to the bottom layer.

9. The vibration isolation tie box for floating floor slabs as described in claim 1, characterized in that: The main body is a hexahedron with an opening. A rear sealing plate is attached to the opening. The closed vibration damping chamber is implemented as a closed space enclosing the interior of the main body.

10. A floating floor slab, characterized in that, The system includes a base layer, a sound insulation layer, a surface layer, and a vibration isolation tie box for floating floor slabs as described in any one of claims 1-9; the sound insulation layer is laid on the base layer, the surface layer is cast-in-place on the sound insulation layer, the main body of the vibration isolation tie box for floating floor slabs is embedded in the base layer, the tie member penetrates the sound insulation layer and is tied to the surface layer, and the surface layer is constrained by the base layer through the vibration isolation tie box for floating floor slabs.

Images