Noise-proof assembled floor adjustable damping foot

Abstract

The utility model discloses an adjustable damping support foot of the anti -noise assembly type floor belongs to floor support foot technical field. Including support foot, threaded cylinder, screw, support plate, threaded cylinder fixed connection is in the support foot, and support plate is located the top of support foot, and screw fixed connection is in the below of support plate, and screw is connected with threaded cylinder threadedly, and damping nut is connected with screw threadedly, and upper sound insulation cylinder fixed connection is in the below of damping nut, and threaded cylinder is located in the upper sound insulation cylinder, and the fixed connection of support foot has lower sound insulation cylinder, and threaded cylinder, upper sound insulation cylinder all are located in the lower sound insulation cylinder. The application constructs a multiple sound insulation system through setting up the upper sound insulation cylinder driven by damping nut and the lower sound insulation cylinder fixed in the support foot, has eliminated the abnormal sound of support foot screw pair commonly, has promoted the quiet performance and use comfort degree of assembly type floor system.

Description

Technical Field

[0001] This utility model provides a noise-reducing, adjustable damping support for prefabricated flooring, belonging to the field of floor support technology. Background Technology

[0002] Prefabricated flooring is a widely used raised floor system in modern building decoration. It uses adjustable legs to support the floor panels on top of the original floor slab, creating a concealed space between them for laying pipes, enhancing sound insulation, and providing thermal insulation. In this system, the adjustable legs are the core load-bearing and leveling components, and their performance is crucial. Traditional legs typically consist of basic components such as support feet, threaded cylinders, screws, and support plates. The threaded cylinder is fixedly connected to the support foot, the support plate is located above the support foot to support the floor, and the screw is fixedly connected below the support plate, achieving precise height adjustment through a threaded connection with the threaded cylinder. While this structure meets basic support and leveling requirements, it suffers from a common and troublesome drawback in practical use.

[0003] Prefabricated flooring is constantly subjected to vibrations and swaying from people walking, running, jumping, and equipment operation. Under these external forces, the threaded joints inside the support legs (the mating point between the screw and the threaded cylinder) are not in a completely static state, but rather generate minute friction. This continuous "micro-friction" causes repeated scraping between the metal thread surfaces, producing a sharp "squeak" noise. This noise reduces the comfort of the user environment and affects privacy. Therefore, there is an urgent need for an innovative support leg structure that, while retaining adjustability, fundamentally suppresses the noise generated by micro-friction. Utility Model Content

[0004] The technical problem this invention aims to solve is that the threaded parts inside the support legs generate a sharp, abnormal noise when they produce minute friction, which affects the environment.

[0005] To address the aforementioned problems, the proposed technical solution is as follows: a noise-reducing adjustable damping support for prefabricated flooring, comprising a support foot, a threaded cylinder, a screw, and a support plate; the threaded cylinder is fixedly connected to the support foot, and the support plate is located above the support foot; the screw is fixedly connected to the bottom of the support plate, and the screw is threadedly connected to the threaded cylinder; further comprising:

[0006] The damping nut and the upper sound insulation cylinder are connected by threads to the screw rod; the upper sound insulation cylinder is fixedly connected below the damping nut, and the threaded cylinder is located inside the upper sound insulation cylinder; the lower sound insulation cylinder is fixedly connected to the support foot, and both the threaded cylinder and the upper sound insulation cylinder are located inside the lower sound insulation cylinder.

[0007] Preferably, the upper sound insulation cylinder has an open structure at the lower end, and the lower sound insulation cylinder has an open structure at the upper end.

[0008] Preferably, the inner diameter of the upper sound insulation cylinder is greater than the maximum diameter of the threaded cylinder, and the inner diameter of the lower sound insulation cylinder is greater than the maximum diameter of the upper sound insulation cylinder.

[0009] Preferably, the upper and lower sound insulation cylinders are provided with sound insulation layers inside their walls, and the inner walls of the upper and lower sound insulation cylinders are provided with sound-absorbing micropores.

[0010] Preferably, the sound insulation layer is a damping sound insulation felt; the inner wall of the sound-absorbing micropores is coated with a sound-absorbing material coating, which is a water-based acrylic composite glass wool coating.

[0011] The beneficial effects of this utility model are:

[0012] 1. A multi-layered sound insulation system is constructed by setting up an upper sound insulation cylinder driven by a damping nut and a lower sound insulation cylinder fixed to the support foot. When the screw and the threaded cylinder generate high-frequency sound waves due to fretting friction, the sound waves are first absorbed and some energy is dissipated by the damping nut itself. Then, the upper sound insulation cylinder can play a key role in sound insulation, while the setting of the lower sound insulation cylinder can greatly compensate for the sound leakage problem caused by the opening at the lower end of the upper sound insulation cylinder.

[0013] 2. The sound insulation layer effectively blocks sound waves from radiating outwards, while the sound-absorbing micropores and coating on the inner wall efficiently convert sound energy into heat energy, thus dissipating it completely. This significantly eliminates the common noises from the threaded joints of the support legs, improving the quietness and comfort of the prefabricated floor system. Attached Figure Description

[0014] Figure 1 This is a first-person perspective view of the present invention.

[0015] Figure 2 This is a perspective view of the present invention from a second angle.

[0016] Figure 3 This is a cross-sectional view of the present invention.

[0017] Figure 4 This is an exploded view of the present invention.

[0018] Figure 5 This is a schematic diagram of the internal structure of the upper soundproof tube of this utility model.

[0019] Figure 6 This is a schematic diagram of the internal structure of the lower sound insulation cylinder of this utility model.

[0020] 1. Support foot; 2. Support plate; 3. Screw; 4. Threaded cylinder; 5. Damping nut; 6. Upper sound insulation cylinder; 7. Lower sound insulation cylinder; 8. Sound insulation layer; 9. Sound-absorbing micropores. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] This utility model provides a noise-reducing prefabricated floor adjustable damping support leg: including a support leg 1, a threaded cylinder 4, a screw 3, and a support plate 2; the threaded cylinder 4 is fixedly connected to the support leg 1, and the support plate 2 is located above the support leg 1; the screw 3 is fixedly connected to the bottom of the support plate 2, and the screw 3 is threadedly connected to the threaded cylinder 4; this structure constitutes the basic load-bearing and height adjustment frame of the support leg. By rotating the screw 3, the depth to which it is screwed into the threaded cylinder 4 can be changed, thereby realizing the precise adjustment of the height of the support plate 2 to meet the leveling needs of different ground surfaces.

[0023] Reference Appendix Figure 3 , 4 The damping nut 5 is threaded onto the screw 3; the upper sound insulation cylinder 6 is fixedly connected below the damping nut 5, and the upper sound insulation cylinder 6 has an open lower end; the threaded cylinder 4 is located inside the upper sound insulation cylinder 6; a lower sound insulation cylinder 7 is fixedly connected to the support foot 1, and the lower sound insulation cylinder 7 has an open upper end, with both the threaded cylinder 4 and the upper sound insulation cylinder 6 located inside the lower sound insulation cylinder 7. The inner diameter of the upper sound insulation cylinder 6 is larger than the maximum diameter of the threaded cylinder 4, and the inner diameter of the lower sound insulation cylinder 7 is larger than the maximum diameter of the upper sound insulation cylinder 6.

[0024] The upper sound insulation cylinder 6 moves synchronously with the damping nut 5, while the lower sound insulation cylinder 7 is fixed to the support foot 1. The two overlap each other to form a dynamic sound insulation cavity, which completely encloses the threaded pair that is prone to noise, fundamentally blocking the direct transmission path of noise.

[0025] Reference Appendix Figure 5 , 6 The upper sound insulation cylinder 6 and the lower sound insulation cylinder 7 are provided with a sound insulation layer 8, and the inner walls of the upper sound insulation cylinder 6 and the lower sound insulation cylinder 7 are provided with sound-absorbing micropores 9. The sound insulation layer 8 is a damping sound insulation felt; the inner walls of the sound-absorbing micropores 9 are coated with a sound-absorbing material coating, which is a water-based acrylic composite glass wool coating;

[0026] The sound insulation layer 8 (damping sound insulation felt) mainly functions as a mass law sound insulation layer, effectively blocking the penetration of mid-to-low frequency sound waves; while the sound-absorbing micropores 9 on the inner wall and the coating target high-frequency noise, converting sound energy into heat energy through friction and reflection of sound waves within the micropores. This achieves efficient suppression of abnormal noises from threaded joints across the entire frequency range.

[0027] In practical application, the support foot 1 and its fixedly connected lower sound insulation cylinder 7 and threaded cylinder 4 are first stably placed and fixed on the building floor. Then, the screw 3 with the support plate 2 and damping nut 5 is screwed into the threaded cylinder 4 and adjusted to a suitable height to achieve initial support. Next, the damping nut 5 is screwed until it contacts the upper end of the threaded cylinder 4. (See attached diagram.) Figure 3Even if the position of the damping nut 5 changes, the threaded connection between the screw 3 and the threaded cylinder 4 remains within the protection range of the upper sound insulation cylinder 6. Simultaneously, because the upper sound insulation cylinder 6 is located inside the lower sound insulation cylinder 7, the lower sound insulation cylinder 7 can block sound escaping from the lower opening of the upper sound insulation cylinder 6, thus achieving a double isolation effect and improving noise reduction. (See attached reference.) Figure 5 , 6 The sound insulation layers 8 inside the upper sound insulation cylinder 6 and the lower sound insulation cylinder 7 effectively block the outward radiation of sound waves, while the sound-absorbing micropores 9 and coating on the inner wall efficiently convert sound energy into heat energy and dissipate it completely. This significantly eliminates the abnormal noises commonly found when the support thread pairs are working, improving the quietness and comfort of the prefabricated floor system.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A noise-proof prefabricated floor adjustable damping support leg, comprising a support leg (1), a threaded cylinder (4), a screw (3), and a support plate (2); wherein the threaded cylinder (4) is fixedly connected to the support leg (1), and the support plate (2) is located above the support leg (1); The screw (3) is fixedly connected to the lower part of the support plate (2), and the screw (3) is threadedly connected to the threaded cylinder (4); characterized in that, Also includes: The damping nut (5) and the upper sound insulation cylinder (6) are connected by threads to the screw rod (3); the upper sound insulation cylinder (6) is fixedly connected below the damping nut (5), and the threaded cylinder (4) is located inside the upper sound insulation cylinder (6); the lower sound insulation cylinder (7) is fixedly connected to the support foot (1), and the threaded cylinder (4) and the upper sound insulation cylinder (6) are both located inside the lower sound insulation cylinder (7).

2. The adjustable damping support leg for noise-reducing prefabricated flooring according to claim 1, characterized in that: The upper sound insulation cylinder (6) has an open structure at the lower end, and the lower sound insulation cylinder (7) has an open structure at the upper end.

3. The adjustable damping support leg for noise-reducing prefabricated flooring according to claim 1, characterized in that: The inner diameter of the upper sound insulation cylinder (6) is greater than the maximum diameter of the threaded cylinder (4), and the inner diameter of the lower sound insulation cylinder (7) is greater than the maximum diameter of the upper sound insulation cylinder (6).

4. The adjustable damping support leg for noise-reducing prefabricated flooring according to claim 1, characterized in that: The upper sound insulation cylinder (6) and the lower sound insulation cylinder (7) are provided with a sound insulation layer (8) inside the wall, and the inner walls of the upper sound insulation cylinder (6) and the lower sound insulation cylinder (7) are provided with sound-absorbing micropores (9).

5. The adjustable damping support leg for a noise-reducing prefabricated floor according to claim 4, characterized in that: The sound insulation layer (8) is a damping sound insulation felt; the inner wall of the sound-absorbing micropores (9) is coated with a sound-absorbing material coating, which is a water-based acrylic composite glass wool coating.

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