A connecting structure of stainless steel square tube grid

Abstract

The utility model discloses a kind of connection structure of stainless steel square tube grid, by multiple cross keels and longitudinal keel connection form grid;The top two sides of longitudinal keel are equipped with inward recessed avoidance groove, so that the top of longitudinal keel forms upward protruding butt joint strip;The bottom of each cross keel is equipped with multiple inward recessed and for butt joint strip butt joint insertion butt joint groove, after butt joint groove and butt joint strip butt joint, inward recessed receiving cavity is formed between the avoidance groove and cross keel, the welding spot between the butt joint groove and butt joint strip is received hidden by the receiving cavity;The utility model sets the connecting place of longitudinal keel and cross keel of square tube grid at the top of longitudinal keel and the bottom of cross keel, shielding is carried out using inward recessed receiving cavity, so that spot welding is carried out in non-visible surface, avoid a large number of welding work, greatly improve construction efficiency. Color difference problem produced by secondary polishing and spraying is avoided simultaneously.

Description

Technical Field

[0001] This utility model relates to the technical field of square tube grilles, specifically a connection structure for stainless steel square tube grilles. Background Technology

[0002] Square tube grilles are a type of mesh structure material formed by welding or assembling metal strips with square or rectangular cross-sections (such as stainless steel and aluminum alloy). They are widely used in construction, industrial platforms, decoration, and other fields. Common materials include stainless steel (corrosion resistant), carbon steel (economical and practical), and aluminum alloy (lightweight). The surface can be treated with galvanizing, powder coating, etc., to enhance rust resistance. For the decoration of stainless steel products, how to achieve a weld-free and smooth surface has always been a pain point for stainless steel materials. Stainless steel is sensitive to light, and even slight imperfections on the surface are fully exposed to light. Currently, most stainless steel square tube grilles on the market are still connected by welding, which involves a lot of welding. After the welds are ground and then painted, color difference problems can occur. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a connection structure for stainless steel square tube grilles.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a connection structure for a stainless steel square tube grille, which is formed by connecting multiple horizontal and vertical keels to form a grille. The horizontal and vertical keels are both made of stainless steel and are square tubes. The feature is that the top two sides of the vertical keel are provided with inwardly recessed clearance grooves, so that the top of the vertical keel forms an upwardly protruding connecting strip. Each of the horizontal keels has multiple inwardly recessed grooves at its bottom for inserting the connecting strips. After the connecting grooves and connecting strips are connected, an inwardly recessed receiving cavity is formed between the clearance groove and the horizontal keel. The receiving cavity receives and hides the weld joint between the connecting groove and the connecting strip.

[0005] As a preferred embodiment of this utility model, the connecting strip is wider at the outside and narrower at the inside, and the width of the front end of the connecting strip is smaller than the width of the connecting groove, while the width of the end of the connecting strip is larger than the width of the connecting groove, so that the connecting strip and the connecting groove are engaged.

[0006] In a preferred embodiment of this invention, the width of the receiving cavity is greater than the diameter of the welding rod.

[0007] As a preferred technical solution of this utility model, the top sides of both ends of the horizontal keel are provided with through holes for inserting screws.

[0008] As a preferred embodiment of this utility model, the two sides of the connecting strip are provided with rounded corners.

[0009] As a preferred embodiment of this utility model, the depth of the storage cavity is 8-15mm.

[0010] The beneficial effects of this utility model are: In this type of stainless steel square tube grating connection structure, the top two sides of the longitudinal keel are provided with inwardly recessed clearance grooves, forming upwardly protruding connecting strips at the top of the longitudinal keel. The bottom of the horizontal keel is provided with multiple inwardly recessed connecting grooves for the connecting strips to be inserted. After the connecting grooves and connecting strips are connected, an inwardly recessed receiving cavity is formed between the clearance groove and the horizontal keel. The receiving cavity conceals the weld points between the connecting grooves and connecting strips. In this way, the connection points of the longitudinal and horizontal keels of the square tube grating are located at the top of the longitudinal keel and the bottom of the horizontal keel, and concealed by the inwardly recessed receiving cavity. Spot welding is performed on non-visible surfaces, avoiding a large amount of welding work and greatly improving construction efficiency. At the same time, it avoids the color difference problem caused by secondary grinding and spraying. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the connection structure of a stainless steel square tube grille according to this utility model; Figure 2 This is a schematic diagram of the top structure of the longitudinal keel of the connection structure of a stainless steel square tube grille according to this utility model. Figure 3 This is a partial structural diagram of the connection structure of a stainless steel square tube grille according to this utility model.

[0012] In the diagram: 1. Horizontal keel; 2. Vertical keel; 3. Clearance groove; 4. Connecting strip; 5. Connecting groove; 6. Storage cavity; 7. Screw; 8. Through hole; 9. Rounded corner; 10. Guide part; 11. Snap-fit ​​part. Detailed Implementation

[0013] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0014] Example: Figure 1 , Figure 2 and Figure 3As shown, the present invention discloses a connection structure for a stainless steel square tube grille, which is formed by connecting multiple horizontal keels 1 and vertical keels 2. The horizontal keels 1 and vertical keels 2 are both stainless steel tubes with square cross sections. The feature is that the top two sides of the vertical keel 2 are provided with inwardly recessed relief grooves 3, so that the top of the vertical keel 2 forms an upwardly protruding connecting strip 4. Each of the horizontal keels 1 has multiple inwardly recessed docking grooves 5 at its bottom for docking strips 4 to be inserted. After the docking grooves 5 and docking strips 4 are docked, an inwardly recessed receiving cavity 6 is formed between the clearance groove 3 and the horizontal keel 1. The receiving cavity 6 receives and hides the weld points between the docking grooves 5 and the docking strips 4. The top two sides of the longitudinal keel 2 are provided with inwardly recessed clearance grooves 3, which form an upwardly protruding connecting strip 4 at the top of the longitudinal keel 2. The bottom of the transverse keel 1 is provided with multiple inwardly recessed connecting grooves 5 for the connecting strip 4 to be inserted. After the connecting groove 5 and the connecting strip 4 are connected, an inwardly recessed receiving cavity 6 is formed between the clearance groove 3 and the transverse keel 1. The receiving cavity 6 conceals the weld points between the connecting groove 5 and the connecting strip 4. In this way, the connection between the longitudinal keel 2 and the transverse keel 1 of the square tube grille is located at the top of the longitudinal keel 2 and the bottom of the transverse keel 1, and is concealed by the inwardly recessed receiving cavity 6. Spot welding is performed on the non-visible surface, avoiding a large amount of welding work and greatly improving construction efficiency. At the same time, it avoids the color difference problem caused by secondary grinding and spraying.

[0015] The connecting strip 4 is wider at the outside and narrower at the inside. The guide part 10 at the front end of the connecting strip 4 is narrower than the width of the connecting groove 5, and the snap-fit ​​part 11 at the end of the connecting strip 4 is wider than the width of the connecting groove 5. This allows the connecting strip 4 to snap into the connecting groove 5, which facilitates accurate docking between the connecting strip and the connecting groove. The snap-fit ​​part 11 also snaps into the connecting groove 5, thus providing a positioning function and preventing displacement during welding.

[0016] The width of the receiving cavity 6 is greater than the diameter of the welding rod, which facilitates the welding rod to be inserted into the receiving cavity 6 to weld the connection between the longitudinal keel 2 and the transverse keel 1.

[0017] The top sides of both ends of the horizontal keel 1 are provided with through holes 8 for inserting screws 7, which facilitates hoisting.

[0018] The connecting strip 4 has rounded corners 9 on both sides, which prevents workers from being scratched during construction. The storage cavity 6 has a depth of 8-15mm, which effectively hides the weld points at the connection between the longitudinal keel 2 and the transverse keel 1, ensuring a good overall appearance.

[0019] During operation, the connecting structure of this type of stainless steel square tube grille features inwardly recessed clearance grooves 3 on both sides of the top of the longitudinal keel 2, forming upwardly protruding connecting strips 4 at the top of the longitudinal keel 2. The bottom of the horizontal keel 1 has multiple inwardly recessed connecting grooves 5 for the connecting strips 4 to be inserted into. After the connecting grooves 5 and connecting strips 4 are connected, an inwardly recessed receiving cavity 6 is formed between the clearance grooves 3 and the horizontal keel 1. The receiving cavity 6 conceals and hides the weld points between the connecting grooves 5 and connecting strips 4. This design places the connection points of the longitudinal keel 2 and the horizontal keel 1 of the square tube grille at the top of the longitudinal keel 2 and the bottom of the horizontal keel 1, using the inwardly recessed receiving cavity 6 for concealment. This allows for spot welding on non-visible surfaces, avoiding extensive welding work and significantly improving construction efficiency. It also avoids color difference issues caused by secondary grinding and spraying.

[0020] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A connection structure for a stainless steel square tube grille, comprising multiple horizontal keels (1) and vertical keels (2) connected to form a grille, wherein the horizontal keels (1) and vertical keels (2) are both stainless steel tubes with a square cross-section; characterized in that, The top two sides of the longitudinal keel (2) are provided with inwardly recessed clearance grooves (3), so that the top of the longitudinal keel (2) forms an upwardly protruding connecting strip (4). Each of the horizontal keels (1) has multiple inwardly recessed docking grooves (5) for docking strips (4) to be inserted into. After the docking grooves (5) and docking strips (4) are docked, an inwardly recessed receiving cavity (6) is formed between the clearance groove (3) and the horizontal keel (1). The receiving cavity (6) receives and hides the welding point between the docking grooves (5) and the docking strips (4).

2. The connection structure of a stainless steel square tube grille according to claim 1, characterized in that, The docking strip (4) is wide on the outside and narrow on the inside, and the guide part (10) of the front end of the docking strip (4) is narrower than the width of the docking groove (5), and the snap-fit ​​part (11) of the end of the docking strip (4) is wider than the width of the docking groove (5), so that the docking strip (4) snaps into the docking groove (5).

3. The connection structure of a stainless steel square tube grille according to claim 1, characterized in that, The width of the receiving cavity (6) is greater than the diameter of the welding rod.

4. The connection structure of a stainless steel square tube grille according to claim 1, characterized in that, The top sides of both ends of the horizontal keel (1) are provided with through holes (8) for inserting screws (7).

5. The connection structure of a stainless steel square tube grille according to claim 1, characterized in that, The two sides of the connecting strip (4) are provided with rounded corners (9).

6. The connection structure of a stainless steel square tube grille according to claim 5, characterized in that, The depth of the receiving cavity (6) is 8-15mm.

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