A type of splicing centering steel grating

Abstract

This utility model discloses a splicing and centering steel grating, relating to the field of splicing steel grating technology. It includes a main frame with a central main top frame at its center and auxiliary components on its side surfaces. These auxiliary components include connecting parts and reinforcing parts. The reinforcing parts enhance overall stability when multiple steel gratings are connected. The connecting parts include two snap-fit ​​frames, each located on one side surface of the main frame. The upper and lower surfaces of the snap-fit ​​frames have side welding slots. The two side surfaces of the main frame without snap-fit ​​frames have connecting protrusions, each corresponding to a snap-fit ​​frame. The upper and lower surfaces of the connecting protrusions have slots, and each slot contains a movable welding protrusion. This design, by incorporating auxiliary components, enhances the load-bearing capacity of the equipment, achieving efficient and stable splicing.

Description

Technical Field

[0001] This utility model relates to the field of spliced ​​steel grating, specifically a spliced ​​centering steel grating. Background Technology

[0002] With the acceleration of industrialization, steel grating, as a standardized and modular structural material, is widely used in industrial platforms, walkways, bridge trestle, drainage ditch covers, and other scenarios. It uses steel as the base material and forms a grid structure through welding or press-locking processes. It has the characteristics of high strength, lightweight, ventilation and light transmission, as well as anti-slip and wear resistance. Especially in projects with high load-bearing requirements and complex environments, steel grating has become an indispensable basic component. In large-scale projects, steel grating needs to cover a large area. The stability of the splicing and the uniformity of the load-bearing directly affect the safety and durability of the overall structure. Therefore, the splicing structure of steel grating must not only meet the requirements of rapid installation and precise alignment, but also have an efficient force transmission mechanism to avoid deformation or breakage caused by local stress concentration.

[0003] Traditional steel grating has several drawbacks in its use. Existing technologies often employ fixed clips or bolts for direct connection, requiring repeated adjustments during splicing. Furthermore, the gap between the clips and the frame can easily lead to installation deviations, especially when splicing multiple panels, where accumulated errors significantly reduce overall flatness. Additionally, traditional welding connections require external welding, exposing the welds to the environment, making them susceptible to corrosive media and weakening the connection strength. Relying solely on mechanical clips can easily lead to loosening or deformation under long-term dynamic loads (such as vibration and impact), affecting structural stability. Regarding reinforcement techniques, existing steel gratings typically increase load-bearing capacity by increasing the thickness of the main frame or using local reinforcing plates. However, this "point reinforcement" design struggles to achieve uniform pressure distribution. When the central main frame is under pressure, stress concentrates at the connection points of adjacent panels, significantly increasing the risk of localized deformation or fracture. Moreover, traditional reinforcement structures are mostly fixed, unable to dynamically adjust support positions according to actual load distribution. In non-uniform load scenarios, localized overload can easily cause structural failure. Utility Model Content

[0004] The purpose of this utility model is to provide a splicing and centering steel grating to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A type of splicing centering steel grating, comprising,

[0007] The main frame has a central main top frame at its center and auxiliary components on its side surfaces. The auxiliary components include connecting parts and reinforcing parts. The reinforcing parts are used to improve the overall stability when multiple steel gratings are connected. The connecting parts include two snap-fit ​​frames, which are respectively set on the two side surfaces of the main frame. The upper and lower surfaces of the snap-fit ​​frames are provided with side welding slots. The two side surfaces of the main frame where the snap-fit ​​frames are not provided are provided with connecting protrusions.

[0008] Furthermore, each of the connecting protrusions is positioned opposite to one of the snap-fit ​​frames. The upper and lower surfaces of the connecting protrusions are provided with slots. Movable welding protrusions are provided inside the two slots. An oblique connecting block is provided on the side surface of the two movable welding protrusions that are close to each other. A locking arc block is provided on the side surface of the two oblique connecting blocks that are close to each other.

[0009] Furthermore, a top disk is provided inside the connecting protrusion, a push rod is provided on one side surface of the top disk, and a transverse groove is provided on one side surface of the connecting protrusion to facilitate contact between the user and the push rod.

[0010] Furthermore, the reinforcing component includes: a bottom additional frame, the upper surface of which is connected to the bottom surface of the main frame, and a bottom fixing bracket is provided at the center of the bottom surface of the bottom additional frame.

[0011] Furthermore, a slidable movable frame is provided at the center of the bottom additional frame, and sliding frames are provided at both ends of the movable frame. A handle slot is provided on one side surface of the sliding frame.

[0012] Furthermore, the movable frame without a handle slot has multiple connecting anchor holes at its center, and the bottom of the bottom additional frame has multiple bottom anchor holes that mate with the connecting anchor holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this solution, by setting up connecting components and using the pre-positioned welding design of the movable welding protrusion and the snap-fit ​​frame, a dual guarantee of mechanical interlocking and precise welding is achieved during splicing. When the worker pushes the side rod, the top disk pushes the movable welding protrusion out through the inclined connecting block, so that it fits tightly against the inner wall of the side welding slot of the snap-fit ​​frame, forming a pre-compression gap. During welding, the side welding slot acts as a guide groove, which restricts the direction of weld spread, improves the uniformity of weld leg size, and significantly improves the reliability of the connection.

[0015] 2. In this solution, by setting up reinforcing components and through the nested sliding design of the movable frame and the bottom additional frame, a mechanical transmission system with central pressure bearing and peripheral dispersion is constructed. When the central main top frame is under pressure, the pressure is transmitted to the movable frame through the main frame. Its outward protruding structure can be inserted into the bottom additional frame of the adjacent steel grating to form cross-plate support, thereby reducing local stress and avoiding the risk of collapse caused by stress concentration in traditional steel grating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the reinforcing component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the connecting protrusion of this utility model.

[0020] In the diagram: 1. Main frame; 2. Central main top frame; 3. Bottom auxiliary frame; 4. Connecting protrusion; 5. Snap-fit ​​frame; 6. Side welded slot; 7. Movable frame; 8. Bottom fixed frame; 9. Bottom anchoring hole; 10. Connecting anchoring hole; 11. Pull handle slot; 12. Sliding frame; 13. Movable welded protrusion; 14. Top position disc; 15. Push side rod; 16. Angled connecting block; 17. Snap-fit ​​arc block. Detailed Implementation

[0021] 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.

[0022] Example 1: Please refer to Figures 1 to 4 A type of splicing centering steel grating, comprising:

[0023] The main frame 1 has a central main top frame 2 at its center. The side surfaces of the main frame 1 are provided with auxiliary components, including connecting parts and reinforcing parts. The connecting parts include two snap-fit ​​frames 5, which are respectively provided on the two side surfaces of the main frame 1. The upper and lower surfaces of the snap-fit ​​frames 5 are provided with side welding slots 6. The two side surfaces of the main frame 1 without snap-fit ​​frames 5 are provided with connecting protrusions 4. Each connecting protrusion 4 is positioned opposite to a snap-fit ​​frame 5. The upper and lower surfaces of the connecting protrusions 4 are provided with slots. The interior of each slot is provided with movable welding protrusions 13. The adjacent side surfaces of the two movable welding protrusions 13 are provided with inclined connecting blocks 16. The adjacent side surfaces of the two inclined connecting blocks 16 are provided with locking arc blocks 17. The interior of the connecting protrusions 4 is also provided with a top plate 14. One side surface of the top plate 14 is provided with a pushing side rod 15. The side surface of the connecting protrusions 4 is also provided with a transverse groove to facilitate contact between the user and the pushing side rod 15.

[0024] When using steel gratings, before splicing and installing multiple steel gratings, workers align two steel gratings together. The connecting protrusion 4 on one side of the main frame 1 is inserted into the snap-fit ​​frame 5 of the adjacent steel grating to splice the two steel gratings. Then, welding is performed. Before splicing, workers can manually control the push rod 15, which moves the top disc 14 to push the two oblique connecting blocks 16 outward and extend the two movable welding protrusions 13. Finally, after the outer surface of the two movable welding protrusions 13 can fit with the inner upper and lower surfaces of the snap-fit ​​frame 5, the two steel gratings are spliced. Then, workers can weld from the inside of the side welding slot 6 to fix the joint between the snap-fit ​​frame 5 and the two movable welding protrusions 13, thus connecting the two gratings.

[0025] The reinforcing components include: a bottom additional frame 3, the upper surface of which is connected to the bottom surface of the main frame 1, a bottom fixing frame 8 is provided at the bottom surface of the center of the bottom additional frame 3, a sliding movable frame 7 is also provided at the center of the bottom additional frame 3, sliding frames 12 are provided at both ends of the movable frame 7, a handle slot 11 is provided on one side surface of the sliding frame 12, multiple connecting anchor holes 10 are provided at the center of the sliding frame 12 of the movable frame 7 where the handle slot 11 is not provided, and multiple bottom anchor holes 9 that cooperate with the connecting anchor holes 10 are provided on the bottom surface of the bottom additional frame 3;

[0026] Before splicing multiple steel gratings, the operator can pull the handle slot 11 to slide the movable frame 7 on the upper surface of the bottom auxiliary frame 3 until the connecting anchor hole 10 coincides with the bottom anchor hole 9 on the bottom surface of the bottom auxiliary frame 3. At this time, the operator can anchor the movable frame 7 with screws to fix its position. At this time, the upper surface of the bottom auxiliary frame 3 is hollow and the movable frame 7 is convex. When splicing, the operator can insert one movable frame 7 into the bottom auxiliary frame 3 of another steel grating and splice them sequentially in this way. When the splicing is completed, this connection structure can distribute the pressure to the two adjacent steel gratings when a central main top frame 2 is under pressure, thereby improving the load-bearing capacity of the equipment.

[0027] Working principle:

[0028] During use, the staff uses connecting and reinforcing components to achieve efficient splicing and load-bearing reinforcement of the steel grating. During splicing, the staff inserts the connecting protrusion 4 on one side of the main frame 1 into the snap-fit ​​frame 5 of the adjacent steel grating, and manually pushes the push side rod 15 to drive the top disk 14 to push out the movable welding protrusion 13 through the inclined connecting block 16, so that it fits tightly against the inner wall of the side welding slot 6 of the snap-fit ​​frame 5 to form a pre-positioning structure and ensure the splicing alignment accuracy. Then, it is fixed by welding from the side welding slot 6.

[0029] During reinforcement, the worker pulls the handle slot 11 to slide the movable frame 7, aligning the connecting anchor hole 10 with the bottom anchor hole 9 of the bottom additional frame 3. The position is locked by screws. During splicing, the protruding movable frame 7 is inserted into the bottom additional frame 3 of the adjacent steel grating to form a cross-plate support. When the central main top frame 2 is under pressure, the pressure is transmitted to the movable frame 7 through the main frame 1 and then distributed to the adjacent steel grating, which increases the bearing area, reduces local stress, and significantly improves the overall bearing capacity and deformation resistance.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spliced, centered steel grating, characterized by, include: The main frame (1) has a central main top frame (2) at its center. The side surface of the main frame (1) is provided with auxiliary components. The auxiliary components include connecting parts and reinforcing parts. The reinforcing parts are used to improve the overall stability when multiple steel gratings are connected. The connecting parts include two snap-fit ​​frames (5). The two snap-fit ​​frames (5) are respectively provided on the two side surfaces of the main frame (1). The upper and lower surfaces of the snap-fit ​​frames (5) are provided with side welding slots (6). The two side surfaces of the main frame (1) without snap-fit ​​frames (5) are provided with connecting protrusions (4).

2. A spliced, centered steel grating according to claim 1, characterized in that: Each of the connecting protrusions (4) is positioned opposite to one of the snap-fit ​​frames (5). The upper and lower surfaces of the connecting protrusions (4) are provided with slots. Movable welding protrusions (13) are provided inside the two slots. An oblique connecting block (16) is provided on the side surface of the two movable welding protrusions (13) that are close to each other. A locking arc block (17) is provided on the side surface of the two oblique connecting blocks (16) that are close to each other.

3. A spliced, centered steel grating according to claim 2, characterized in that: The connecting protrusion (4) is also provided with a top plate (14), and a push rod (15) is provided on one side surface of the top plate (14). A transverse groove is also provided on one side surface of the connecting protrusion (4) to facilitate contact between the user and the push rod (15).

4. The spliced, centered steel grating of claim 1, wherein: The reinforcing component includes: a bottom additional frame (3), the upper surface of which is connected to the bottom surface of the main frame (1), and a bottom fixing frame (8) is provided at the bottom surface of the center of the bottom additional frame (3).

5. A spliced, centered steel grating according to claim 4, characterized in that: The bottom additional frame (3) is also provided with a sliding movable frame (7) at the center. Both ends of the movable frame (7) are provided with sliding frames (12). One side surface of the sliding frame (12) is provided with a handle slot (11).

6. A spliced, centered steel grating according to claim 5, wherein: The movable frame (7) without a handle slot (11) has multiple connecting anchor holes (10) at the center of the sliding frame (12), and the bottom additional frame (3) has multiple bottom anchor holes (9) that cooperate with the connecting anchor holes (10).

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