A noise reduction material installation steel frame for a railway station building
By using a two-stage connection method of anchor bolts and stabilizers in railway station buildings, the stability and noise reduction issues of the ceiling system were solved, enabling stable and reliable installation of noise reduction materials and improving environmental comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN SHUTIE INVESTMENT MATERIALS CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-21
AI Technical Summary
The existing connection methods of railway station ceilings are easily affected by vibration and wind pressure, posing safety hazards. In addition, traditional ceilings are heavy, have unstable connections, and are difficult to effectively absorb sound and reduce noise.
Anchor bolts are pre-embedded in the concrete layer, and stability is ensured through a two-stage connection method of stabilizing frame and mounting keel. Combined with the installation of noise reduction components, including anchor bolts, mounting keel, stabilizing frame and noise reduction materials, multi-directional fixation is achieved.
It improves the stability and noise reduction of the ceiling system, avoids the risk of falling off due to vibration and wind pressure, and ensures the reliability of the connection and the comfort of the environment.
Smart Images

Figure CN224532020U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of noise reduction equipment installation technology, and in particular relates to a steel frame for installing noise reduction materials in railway station buildings. Background Technology
[0002] Currently, most of the noise-reducing materials used in buildings are non-metallic sound-absorbing materials, such as porous sound-absorbing materials (mineral wool, rock wool, glass wool, etc.) and fiber materials (wood fiberboard, hemp fiber, etc.).
[0003] In large public buildings, such as railway stations, the environment is very noisy and uncomfortable due to the large flow of people and the mixing of various noises. Therefore, it is necessary to use ceilings with sound-absorbing properties to absorb environmental noise and improve environmental comfort.
[0004] Existing suspended ceilings typically involve attaching a layer of sound-absorbing cotton to a metal ceiling, then creating sound-absorbing holes in both the cotton and the metal. In railway station buildings, where ceiling heights can exceed tens of meters, the suspended ceiling, as a noise reduction measure second only to walls, can effectively absorb and reduce noise when used properly. Traditional suspended ceiling construction methods, such as snap-fit and plug-in joints, are susceptible to cracking or detachment due to factors like vibration and wind pressure, posing certain safety hazards. Furthermore, noise-reducing suspended ceilings are heavier than traditional single-panel ceilings, and their suspended connection method makes them more vulnerable to external factors. Utility Model Content
[0005] To address the technical problems existing in the background art, this utility model provides a steel frame for installing noise reduction materials in railway station buildings, which has the advantages of stable and reliable connection, simple structure, and easy operation.
[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: A noise reduction material installation steel frame for railway station buildings includes anchor bolts, mounting joists, and stabilizing frames. The upper end of the anchor bolts is embedded inside the concrete layer. The mounting joists are U-shaped. The stabilizing frames and mounting joists are sequentially installed from top to bottom on the outside of the anchor bolts. The stabilizing frames are fixed by a first locking nut and a second locking nut on the anchor bolts, and the upper side of the stabilizing frames is in close contact with the concrete layer. The mounting joists are fixed by a third locking nut and a fourth locking nut on the anchor bolts. Noise reduction components are detachably installed between adjacent mounting joists.
[0007] Optionally, a horizontal plate is provided on the upper side of the stabilizing frame, and the horizontal plate is attached to the concrete layer.
[0008] Optionally, the bottom side of the stabilizer is symmetrically provided with hanging plates, the bottom side of the hanging plates is bent and provided with hooks, and the upper side of the mounting keel is symmetrically provided with limit blocks, the hooks being engaged with the bottom wall of the limit blocks.
[0009] Optionally, the mounting keel is symmetrically provided with mounting plates on its bottom side, and the noise reduction component includes a decorative panel and a noise reduction substrate provided on the upper side of the decorative panel. L-shaped clips are symmetrically provided on both sides of the decorative panel, and the clips are attached to the upper side of the mounting plate.
[0010] Optionally, the mounting plate is threaded with a locking screw, which passes through the mounting plate and abuts against the upper end face of the decorative plate.
[0011] Optionally, a pressure ring is sleeved on the outside of the locking screw, and a fifth locking nut is threaded onto the locking screw. The fifth locking nut is used to press the pressure ring against the noise reduction substrate.
[0012] Optionally, the decorative panel is provided with a number of sound-absorbing holes.
[0013] Optionally, two adjacent decorative panels can be attached together to close the bottom side of the mounting frame.
[0014] This utility model has the following advantages and beneficial effects: In this invention, the connection is achieved through anchor bolts pre-embedded inside the concrete layer. The stabilizing frame and mounting joists are sequentially inserted from top to bottom onto the outside of the anchor bolts. Nuts are used to connect the stabilizing frame and mounting joists to the anchor bolts. Simultaneously, the upper side of the stabilizing frame is in close contact with the concrete layer. Since the anchor bolts have a relatively long extension length (50cm, 100cm, etc.), a stabilizing frame is used to stabilize the anchor bolts and increase their stability. At the same time, noise reduction components are installed using the mounting joists. This ensures that the installed suspension system (ceiling) is sufficiently stable, avoiding the effects of various vibrations and wind pressure, and ensuring the reliability of the connection.
[0015] Secondly, in addition to using the stabilizer to strengthen the support of the anchor bolts, the stabilizer and the mounting keel are further interlocked to ensure that the mounting keel is connected and fixed in multiple directions. This avoids the mounting keel relying solely on a single connection with the anchor bolts. Through a two-stage connection, the connection performance of the mounting keel is strengthened, preventing it from loosening and thus ensuring the stability of the overall suspension system. Attached Figure Description
[0016] Figure 1 This is one of the structural diagrams for installing the steel frame of the noise reduction material in this utility model; Figure 2 This is the second structural diagram of the steel frame for installing the noise reduction material in this utility model; Figure 3A front view of the steel frame for installing the noise reduction material in this utility model; Figure 4 A cross-sectional view of the steel frame for installing the noise reduction material in this utility model; Figure 5 This is a structural diagram of the anchor bolt and stabilizer frame in this utility model; Figure 6 This is a front view of the anchor bolt and stabilizer frame in this utility model; Figure 7 This is a structural diagram of the keel installation in this utility model; Figure 8 for Figure 7 A magnified view of a portion of point a; Figure 9 This is a structural diagram of the decorative panel in this utility model; Figure 10 for Figure 9 A magnified view of a section at point b.
[0017] Reference numerals: 1-Anchor bolt, 11-First locking nut, 12-First washer, 13-Second washer, 14-Second locking nut, 15-Third locking nut, 16-Third washer, 17-Fourth washer, 18-Fourth locking nut, 2-Stabilizing frame, 21-Horizontal plate, 22-Hanging plate, 23-Hook, 3-Mounting keel, 31-First connecting hole, 32-Mounting plate, 33-Second connecting hole, 34-Limiting block, 4-Decorative plate, 41-Card plate, 42-Card slot, 5-Locking screw, 51-Fifth locking nut, 52-Pressure ring, 6-Noise reduction substrate, 7-Concrete layer. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0020] Example like Figures 1-10As shown, a steel frame for noise reduction materials in a railway station building includes anchor bolts 1, mounting joists 3, and a stabilizing frame 2. The upper end of the anchor bolts 1 is pre-embedded inside a concrete layer 7, providing a prerequisite for the later installation of the suspension system. The mounting joists 3 are U-shaped, and the stabilizing frame 2 and the mounting joists 3 are sequentially inserted from top to bottom on the outside of the anchor bolts 1. The stabilizing frame 2 is fixed by a first locking nut 11 and a second locking nut 14 on the anchor bolts 1. The first locking nut 11 and the second locking nut 14 are positioned opposite each other on the upper and lower walls of the stabilizing frame 2. A first washer 12 and a second washer 13 are added to increase the stability of the connection. The upper side of the stabilizing frame 2 is in close contact with the concrete layer 7, ensuring that the stabilizing frame 2 provides stable support for the anchor bolts 1. The mounting keel 3 is fixed by the third locking nut 15 and the fourth locking nut 18 on the anchor bolt 1. The third locking nut 15 and the fourth locking nut 18 are set opposite to each other on the upper and lower wall surfaces of the mounting keel 3. At the same time, the third washer 16 and the fourth washer 17 are added to increase the stability of the connection. A noise reduction component is detachably installed between two adjacent mounting keels 3.
[0021] In this invention, the upper side of the stabilizing frame 2 is in close contact with the concrete layer 7. Since the anchor bolt 1 extends outwards at considerable lengths (50cm, 100cm, etc.), the stabilizing frame 2 is used to stabilize the anchor bolt 1 and increase its stability. Simultaneously, noise reduction components are installed using the mounting keel 3. This ensures that the installed suspension system (ceiling) is sufficiently stable, avoiding the effects of various vibrations and wind pressure, and ensuring the reliability of the connection.
[0022] Furthermore, a horizontal plate 21 is provided on the upper side of the stabilizer 2, which is in contact with the concrete layer 7 to increase the contact area with the concrete layer 7.
[0023] like Figures 1-10 As shown, furthermore, the bottom side of the stabilizer 2 is symmetrically provided with hanging plates 22, which are inclined relative to each other. The bottom side of the hanging plates 22 is bent to provide hooks 23. The upper side of the mounting keel 3 is symmetrically provided with limiting blocks 34, and the hooks 23 are engaged with the bottom wall of the limiting blocks 34. This snap-fit structure realizes the snap-fit connection between the stabilizer 2 and the mounting keel 3. At the same time, the mounting keel 3 and the stabilizer 2 are respectively connected to the anchor bolts 1. In addition to using the stabilizer 2 to strengthen the support of the anchor bolts 1, the stabilizer 2 and the mounting keel 3 are further engaged to ensure that the mounting keel 3 is connected and fixed in multiple directions. This avoids the mounting keel 3 relying solely on the connection with the anchor bolts 1. Through double-stage connection and fixation, the connection performance of the mounting keel 3 is strengthened, preventing it from loosening, thereby ensuring the stability of the overall suspension system and preventing the mounting keel 3 from falling off.
[0024] like Figures 1-4As shown, in this utility model, a plurality of first connecting holes 31 are evenly distributed on the upper side of the mounting keel 3, and the anchoring bolts 1 pass through the first connecting holes 31. A mounting plate 32 is symmetrically arranged on the bottom side of the mounting keel 3. The noise reduction component includes a decorative panel 4 and a noise reduction substrate 6 disposed on the upper side of the decorative panel 4. L-shaped clamping plates 41 are symmetrically arranged on both sides of the decorative panel 4, and the inner side of the clamping plates 41 forms a clamping groove 42. The clamping plates 41 are fitted onto the upper side of the mounting plate 32. This structure allows the decorative panel 4 and the mounting keel 3 to be clamped together, facilitating installation and preventing the decorative panel 4 from falling off the mounting keel 3.
[0025] Furthermore, the card plate 41 is threaded with locking screws 5, and the mounting plate 32 is provided with several second connecting holes 33. The locking screws 5 pass through the second connecting holes 33 of the mounting plate 32 and abut against the upper end face of the decorative plate 4 to prevent the decorative plate 4 from sliding laterally relative to the mounting keel 3.
[0026] Furthermore, a pressure ring 52 is fitted around the outer side of the locking screw 5, and a fifth locking nut 51 is threaded onto the locking screw 5. The fifth locking nut 51 is used to press the pressure ring 52 against the noise reduction substrate 6, thereby fixing the noise reduction substrate 6. The noise reduction substrate 6 can be made of conventional noise reduction materials, such as mineral wool, rock wool, glass wool, wood fiberboard, etc.
[0027] Furthermore, the decorative panel 4 is provided with several sound-absorbing holes, which can enhance the sound absorption effect, reduce the weight of the decorative panel 4, and also have a decorative effect.
[0028] like Figure 2 and Figure 4 As shown, further, two adjacent decorative panels 4 are attached to each other and the bottom side of the mounting keel 3 is closed. By closing the two sides of the decorative panels 4, the mounting keel 3 is hidden. At the same time, the bottom side of the anchor bolt 1 is covered, so that the internal hidden connection structure cannot be seen when viewed from the bottom side, thus ensuring the decorative effect of the decorative panels 4.
[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A steel frame for installing noise reduction materials in railway station buildings, characterized in that: The system includes anchor bolts, mounting joists, and a stabilizing frame. The upper end of the anchor bolts is embedded inside the concrete layer. The mounting joists are U-shaped. The stabilizing frame and the mounting joists are sequentially installed from top to bottom on the outside of the anchor bolts. The stabilizing frame is fixed by a first and a second locking nut on the anchor bolts, and the upper side of the stabilizing frame is in close contact with the concrete layer. The mounting joists are fixed by a third and a fourth locking nut on the anchor bolts. A noise reduction component is detachably installed between two adjacent mounting joists.
2. The steel frame for installing noise reduction materials in railway station buildings according to claim 1, characterized in that: A horizontal plate is provided on the upper side of the stabilizing frame, and the horizontal plate is in contact with the concrete layer.
3. The steel frame for installing noise reduction materials in railway station buildings according to claim 1, characterized in that: The bottom side of the stabilizer is symmetrically provided with hanging plates, and the bottom side of the hanging plates is bent to provide hooks. The upper side of the mounting keel is symmetrically provided with limit blocks, and the hooks are engaged with the bottom wall of the limit blocks.
4. The steel frame for installing noise reduction materials in railway station buildings according to claim 1, characterized in that: The mounting keel is symmetrically provided with mounting plates on its bottom side. The noise reduction component includes a decorative panel and a noise reduction substrate provided on the upper side of the decorative panel. L-shaped clips are symmetrically provided on both sides of the decorative panel, and the clips are attached to the upper side of the mounting plate.
5. The steel frame for installing noise reduction materials in railway station buildings according to claim 4, characterized in that: The mounting plate is threaded with a locking screw, which passes through the mounting plate and abuts against the upper surface of the decorative plate.
6. The steel frame for installing noise reduction materials in railway station buildings according to claim 5, characterized in that: A pressure ring is sleeved on the outside of the locking screw, and a fifth locking nut is threaded onto the locking screw. The fifth locking nut is used to press the pressure ring against the noise reduction substrate.
7. The steel frame for installing noise reduction materials in railway station buildings according to claim 5, characterized in that: The decorative panel is provided with several sound-absorbing holes.
8. The steel frame for installing noise reduction materials in railway station buildings according to claim 5, characterized in that: The two adjacent decorative panels are attached to each other and the bottom side of the keel is closed.