A noise reducing steel grating plate

By introducing reinforcing rods and sliding connection structures into the steel grating, the problem of cracking at the weld joints was solved, the grating blades were stably fixed, and the service life and practicality of the steel grating were improved.

CN224532044UActive Publication Date: 2026-07-21NINGBO LIHONGYUAN STEEL GRATING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO LIHONGYUAN STEEL GRATING CO LTD
Filing Date
2025-09-02
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing steel gratings are prone to cracking at the weld joints when handling heavy objects repeatedly, causing the grating blades to loosen and reducing their practicality.

Method used

The structure employs reinforcing rods, transmission boxes, moving blocks, insert rods, and locking blocks, and reinforces the grid blades through sliding and threaded connections to prevent cracking at the weld joints.

Benefits of technology

It effectively prevents cracking at the weld joints, improves the stability and service life of the grating blades, and enhances the practicality of the steel grating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of noise reduction steel grating plate, including frame, the inside welding of the frame has grid blade, the rear side of the frame is provided with two reinforcing rods, the front side of the reinforcing rod is sequentially penetrated frame and grid blade and extends to the front side of frame, the surface of the reinforcing rod is slidably connected with the inner wall of grid blade, the both sides of the frame inner wall are fixedly connected with two transmission boxes, the inside sliding connection of the transmission box has moving block, the inboard fixed connection of the moving block has inserting rod, the inboard of the inserting rod is sequentially penetrated transmission box and reinforcing rod and extends to the surface of reinforcing rod. The utility model can effectively assist the steel grating plate to be strengthened, avoid the welding area of the grid blade and frame of steel grating plate when transporting heavy object, the phenomenon that cracking easily appears, lead to grid blade to appear to shake and exist safety risk, reduce the practicality of steel grating plate.
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Description

Technical Field

[0001] This utility model relates to the field of steel grating technology, specifically a noise-reducing steel grating. Background Technology

[0002] Noise-reducing steel grating is needed when constructing operating platforms and walkways. The grid structure of the steel grating forms a porous medium. After sound waves enter the pores, they rub against the material, and some of the sound energy is converted into heat energy and consumed. For example, in industrial plants, steel grating can reduce the medium and high frequency noise generated by equipment operation (such as motor and fan noise). The absorption efficiency is related to the porosity and plate thickness.

[0003] This utility model relates to the field of grating technology. Existing steel gratings include multiple grating blades spaced apart along a first direction and connectors disposed between the multiple grating blades. The connectors are used to connect the multiple grating blades. The upper surface of the connectors and each grating blade is provided with a groove. The grooves on the upper surface of the connectors and each grating blade can receive materials and form material accumulation in the grooves, thereby forming a "material-on-material" impact mechanism. This effectively reduces the scouring of the connectors and each grating blade by subsequent incoming materials, thereby effectively reducing the impact of continuous material impact on the anti-corrosion and wear-resistant coating on the connectors and each grating blade, ensuring the protective ability of the anti-corrosion and wear-resistant coating, and ensuring the service life of the steel grating. However, most of the grating blades inside the steel grating are connected to the frame by welding. This causes the welds to crack easily when the user moves heavy objects from the top of the steel grating repeatedly, resulting in the grating blades becoming loose. The user needs to weld and reinforce them, reducing the practicality of the steel grating.

[0004] Therefore, it is necessary to improve the steel grating to prevent cracking at the internal welds when heavy objects are passed over it for a long time. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a noise-reducing steel grating with the advantages of efficient reinforcement. It solves the problem that most of the grating blades inside the steel grating are welded to the frame, which leads to cracking at the welds when users move heavy objects from the top of the steel grating multiple times. This causes the grating blades to loosen, requiring users to weld and reinforce them, thus reducing the practicality of the steel grating.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing steel grating, comprising a frame, with grating blades welded inside the frame, two reinforcing rods on the rear side of the frame, two transmission boxes fixedly connected to both sides of the inner wall of the frame, a movable block slidably connected inside the transmission box, an insert rod fixedly connected to the inner side of the movable block, the inner side of the insert rod sequentially penetrating the transmission box and the reinforcing rod and extending to the surface of the reinforcing rod, the surface of the insert rod slidably connected to the inner wall of the reinforcing rod, a transmission groove being formed inside the insert rod, two movable plates slidably connected inside the transmission groove, a locking block fixedly connected to one end of the movable plate near the transmission groove, the other end of the locking block away from the movable plate penetrating the insert rod and contacting the surface of the reinforcing rod, pressure blocks being provided on both the front and rear sides of the insert rod, the end of the pressure block near the insert rod extending into the transmission groove and fixedly connected to the surface of the movable plate.

[0007] As a technical optimization of this utility model, the front side of the reinforcing rod passes through the frame and the grid blade in sequence and extends to the front side of the frame, and the surface of the reinforcing rod is slidably connected to the inner wall of the grid blade.

[0008] As a technical optimization of this utility model, the top and bottom of the transmission box are fixedly connected to a ferrule. A rotating block is provided at the end of the ferrule away from the transmission box. A screw is fixedly connected at the end of the rotating block near the ferrule. The end of the screw away from the rotating block passes through the ferrule and extends into the interior of the transmission box. The screw is threadedly connected to the ferrule. Threaded grooves for the screw to be inserted are provided at the top and bottom of the moving block.

[0009] As a technical optimization of this utility model, a guide rod is fixedly connected laterally inside the transmission groove, and the guide rod passes through the moving plate and is slidably connected to the moving plate.

[0010] As a technical optimization of this utility model, a spring rebounder is sleeved on the surface of the guide rod, and the front and rear sides of the spring rebounder are fixedly connected to the surface of the moving plate.

[0011] As a technical optimization of this utility model, two limiting plates are sleeved on the surface of the reinforcing rod. The end of the limiting plate near the reinforcing rod extends into the interior of the frame and is fixedly connected to a limiting block. The surface of the limiting block is slidably connected to the inner wall of the frame.

[0012] As a technical optimization of this utility model, a friction pad is fixedly connected to the end of the limiting block away from the limiting plate, and the surface of the friction pad is in contact with the inner wall of the frame.

[0013] As a technical optimization of this utility model, the end of the card block away from the moving plate is provided with a chamfer, and the chamfer is used in conjunction with the reinforcing rod.

[0014] As a technical optimization of this utility model, pressure pads are provided on both the front and rear sides of the insertion rod, and the end of the pressure pad near the insertion rod is fixedly connected to the surface of the pressure block.

[0015] As a technical optimization of this utility model, the grid blades are evenly distributed at equal intervals along the interior of the frame, and the frame reduces noise transmission through the evenly distributed grid blades.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model can effectively reinforce steel grating, preventing cracking at the welded area between the grating blades and the frame when transporting heavy objects. This prevents the grating blades from wobbling, which poses a safety risk and reduces the practicality of the steel grating.

[0018] 2. This utility model can fix the moving block by setting a sleeve, a rotating block, a screw and a threaded groove, so as to avoid the moving block moving randomly after resetting. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial structural diagram of the present invention;

[0021] Figure 3 This is a partial enlarged view of the present invention;

[0022] Figure 4 This is a partial enlarged cross-sectional view of the present invention.

[0023] In the diagram: 1. Frame; 10. Reinforcing rod; 11. Transmission box; 12. Moving block; 13. Insert rod; 14. Transmission groove; 15. Moving plate; 16. Locking block; 17. Pressure block; 120. Threaded groove; 130. Pressure pad; 140. Guide rod; 141. Rebound device; 160. Chamfer; 2. Grille blade; 3. Sleeve; 30. Rotating block; 31. Screw; 4. Limiting plate; 40. Limiting block; 41. Friction pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 4 As shown, the present invention provides a noise-reducing steel grating, comprising a frame 1, with grating blades 2 welded inside the frame 1. The grating blades 2 are evenly distributed at equal intervals along the interior of the frame 1. The frame 1 reduces noise transmission through the evenly distributed grating blades 2. Two reinforcing rods 10 are provided on the rear side of the frame 1. The front side of the reinforcing rods 10 passes through the frame 1 and the grating blades 2 and extends to the front side of the frame 1. The surface of the reinforcing rods 10 is slidably connected to the inner wall of the grating blades 2. Two transmission boxes 11 are fixedly connected to both sides of the inner wall of the frame 1. A moving block 12 is slidably connected inside the transmission box 11, and a plug rod is fixedly connected to the inner side of the moving block 12. 13. The inner side of the insertion rod 13 passes through the transmission box 11 and the reinforcing rod 10 in sequence and extends to the surface of the reinforcing rod 10. The surface of the insertion rod 13 is slidably connected to the inner wall of the reinforcing rod 10. The insertion rod 13 has a transmission groove 14 inside. Two moving plates 15 are slidably connected inside the transmission groove 14. A locking block 16 is fixedly connected to one end of the moving plate 15 near the transmission groove 14. The end of the locking block 16 away from the moving plate 15 passes through the insertion rod 13 and contacts the surface of the reinforcing rod 10. A pressing block 17 is provided on both the front and rear sides of the insertion rod 13. The end of the pressing block 17 near the insertion rod 13 extends into the transmission groove 14 and is fixedly connected to the surface of the moving plate 15.

[0026] refer to Figure 3 The top and bottom of the transmission box 11 are fixedly connected with a sleeve 3. A rotating block 30 is provided at the end of the sleeve 3 away from the transmission box 11. A screw 31 is fixedly connected at the end of the rotating block 30 near the sleeve 3. The end of the screw 31 away from the rotating block 30 passes through the sleeve 3 and extends into the interior of the transmission box 11. The screw 31 is threadedly connected to the sleeve 3. The top and bottom of the moving block 12 are provided with threaded grooves 120. By setting the sleeve 3, rotating block 30, screw 31 and threaded grooves 120, the moving block 12 can be fixed, and the moving block 12 can be prevented from moving randomly after resetting.

[0027] refer to Figure 4 A guide rod 140 is fixedly connected laterally inside the transmission groove 14. The guide rod 140 passes through the moving plate 15 and is slidably connected to the moving plate 15. By setting the guide rod 140, the moving plate 15 can be guided to avoid the phenomenon of tilting and jamming when the moving plate 15 moves.

[0028] refer to Figure 4 A spring return device 141 is sleeved on the surface of the guide rod 140. The front and rear sides of the spring return device 141 are fixedly connected to the surface of the moving plate 15. By setting the spring return device 141, the moving plate 15 can move outward automatically, which improves the performance of the moving plate 15.

[0029] refer to Figure 2 Two limiting plates 4 are fitted on the surface of the reinforcing rod 10. The end of the limiting plate 4 near the reinforcing rod 10 extends into the interior of the frame 1 and is fixedly connected to the limiting block 40. The surface of the limiting block 40 is slidably connected to the inner wall of the frame 1. By setting the limiting plate 4 and the limiting block 40, the two reinforcing rods 10 can be fixed, which improves the stability of the reinforcing rod 10.

[0030] refer to Figure 2 A friction pad 41 is fixedly connected to one end of the limiting block 40 away from the limiting plate 4. The surface of the friction pad 41 contacts the inner wall of the frame 1. By setting the friction pad 41, the limiting block 40 can be in closer contact with the inner wall of the frame 1, thus increasing the contact area between the limiting block 40 and the frame 1.

[0031] refer to Figure 4 The end of the locking block 16 away from the moving plate 15 has a chamfer 160. The chamfer 160 works in conjunction with the reinforcing rod 10. By setting the chamfer 160, when the user pushes the insertion rod 13 inward, the reinforcing rod 10 can directly push the locking block 16 inward, thus improving the practicality of the locking block 16.

[0032] refer to Figure 4 Pressure pads 130 are provided on both the front and rear sides of the insertion rod 13. The end of the pressure pad 130 near the insertion rod 13 is fixedly connected to the surface of the pressure block 17. By providing pressure pads 130, it is easier for the user to press the pressure block 17 and prevent the user from slipping when pressing the pressure block 17 directly.

[0033] In use: First, weld the grille blades 2 to the inside of the frame 1. After welding, insert the reinforcing rod 10 into the inside of the frame 1 from back to front to fix the grille blades 2. After insertion, place the limiting plates 4 on the front and rear sides onto the surface of the reinforcing rod 10 and use the limiting blocks 40 to lock into the inside of the frame 1 to limit the reinforcing rod 10. After the limiting is completed, the user rotates the rotating block 30, which drives the screw 31 to rotate and move outward, so that the screw 31 moves away from the moving block 12. After it moves away, the user pulls the insert rod 13 inward, which drives the moving block 12 to move inward, so that the insert rod 13 is inserted into the inside of the reinforcing rod 10. When the insert rod 13 is inserted, the chamfer 160 causes the reinforcing rod 10 to push the locking block 16 inward. When the insert rod 13 moves to the limit position, the spring force of the spring mechanism 141 drives the locking block 16 to move outward again, so that the locking block 16 is placed on the surface of the reinforcing rod 10 to fix the reinforcing rod 10. Finally, if it is necessary to remove the reinforcing rod 10, the above operation can be reversed.

[0034] In summary: This noise-reducing steel grating, by setting the reinforcing rod 10, can initially fix the grating blades 2, preventing the surface from cracking at the welds when heavy objects pass through. By setting the transmission box 11, moving block 12, insert rod 13, moving plate 15, locking block 16, and pressure block 17, the reinforcing rod 10 can be limited, preventing the reinforcing rod 10 from moving arbitrarily during use. By setting the sleeve 3, rotating block 30, screw 31, and threaded groove 120, the moving block 12 can be fixed, improving the stability of the moving block 12. Thus, it has the advantage of efficient reinforcement. This solves the problem that most of the grating blades 2 inside the steel grating are welded to the inside of the frame 1, which leads to cracking at the welds when users repeatedly move heavy objects from the top of the steel grating, causing the grating blades 2 to loosen and requiring users to weld reinforcement, reducing the practicality of the steel grating.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A noise-reducing steel grating, comprising a frame (1), wherein grating blades (2) are welded inside the frame (1), characterized in that: Two reinforcing rods (10) are provided on the rear side of the frame (1). Two transmission boxes (11) are fixedly connected to both sides of the inner wall of the frame (1). A moving block (12) is slidably connected inside the transmission box (11). A plug rod (13) is fixedly connected to the inner side of the moving block (12). The inner side of the plug rod (13) passes through the transmission box (11) and the reinforcing rod (10) in sequence and extends to the surface of the reinforcing rod (10). The surface of the plug rod (13) is slidably connected to the inner wall of the reinforcing rod (10). A transmission mechanism is opened inside the plug rod (13). The transmission groove (14) has two sliding plates (15) connected inside. A locking block (16) is fixedly connected to one end of the moving plate (15) near the transmission groove (14). The locking block (16) passes through the insert rod (13) and contacts the surface of the reinforcing rod (10) at the end away from the moving plate (15). A pressure block (17) is provided on both the front and rear sides of the insert rod (13). The pressure block (17) extends into the interior of the transmission groove (14) and is fixedly connected to the surface of the moving plate (15) at the end near the insert rod (13).

2. The noise-reducing steel grating according to claim 1, characterized in that: The front side of the reinforcing rod (10) passes through the frame (1) and the grid blade (2) in sequence and extends to the front side of the frame (1). The surface of the reinforcing rod (10) is slidably connected to the inner wall of the grid blade (2).

3. The noise-reducing steel grating according to claim 1, characterized in that: The top and bottom of the transmission box (11) are fixedly connected to a sleeve (3). A rotating block (30) is provided at the end of the sleeve (3) away from the transmission box (11). A screw (31) is fixedly connected at the end of the rotating block (30) near the sleeve (3). The end of the screw (31) away from the rotating block (30) passes through the sleeve (3) and extends into the interior of the transmission box (11). The screw (31) is threadedly connected to the sleeve (3). The top and bottom of the moving block (12) are provided with threaded grooves (120) for the screw (31) to be inserted.

4. The noise-reducing steel grating according to claim 1, characterized in that: A guide rod (140) is fixedly connected laterally inside the transmission groove (14). The guide rod (140) passes through the moving plate (15) and is slidably connected to the moving plate (15).

5. A noise-reducing steel grating according to claim 4, characterized in that: The guide rod (140) is fitted with a spring rebounder (141), and the front and rear sides of the spring rebounder (141) are fixedly connected to the surface of the moving plate (15).

6. The noise-reducing steel grating according to claim 1, characterized in that: Two limiting plates (4) are sleeved on the surface of the reinforcing rod (10). The end of the limiting plate (4) near the reinforcing rod (10) extends into the interior of the frame (1) and is fixedly connected to a limiting block (40). The surface of the limiting block (40) is slidably connected to the inner wall of the frame (1).

7. A noise-reducing steel grating according to claim 6, characterized in that: The end of the limiting block (40) away from the limiting plate (4) is fixedly connected to a friction pad (41), and the surface of the friction pad (41) is in contact with the inner wall of the frame (1).

8. The noise-reducing steel grating according to claim 1, characterized in that: The end of the card block (16) away from the moving plate (15) is provided with a chamfer (160), and the chamfer (160) is used in conjunction with the reinforcing rod (10).

9. A noise-reducing steel grating according to claim 1, characterized in that: Pressure pads (130) are provided on both the front and rear sides of the insertion rod (13), and the end of the pressure pad (130) near the insertion rod (13) is fixedly connected to the surface of the pressure block (17).

10. A noise-reducing steel grating according to any one of claims 1 to 9, characterized in that: The grid blades (2) are evenly distributed along the interior of the frame (1), and the frame (1) reduces noise transmission through the evenly distributed grid blades (2).