Self-locking grille

Abstract

The utility model belongs to the technical field of grilles, and particularly relates to a self-locking grille which comprises a cross rod and a bearing rod which are connected in a crossed mode, the cross rod and the bearing rod are both flat plates, a first notch is formed in the side edge of the bearing rod, the cross rod and the bearing rod are connected in an inserted mode through the first notch, and arc-shaped protruding parts are arranged on the two side walls of the first notch respectively. The two arc-shaped convex parts are respectively a first arc-shaped convex part and a second arc-shaped convex part, the first arc-shaped convex part and the second arc-shaped convex part are arranged in a staggered manner, the horizontal distance between the first arc-shaped convex part and the second arc-shaped convex part is smaller than the thickness of the cross rod, the opening width of the first notch of the bearing rod is larger than the thickness of the cross rod, and the width of the bottom end of the first notch is equal to the thickness of the cross rod; the width of the transverse rod is smaller than or equal to that of the bearing rod, and the depth of the first notch is smaller than or equal to half of the width of the bearing rod. According to the self-locking grille, the procedures of welding, leveling and the like are not needed, the attractiveness of products is improved, additional connecting pieces are not needed, the assembling process of the grille is simplified, and cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of grid technology, and in particular relates to a self-locking grid. Background Technology

[0002] Self-locking grating is a metal product made of materials such as plain carbon steel, stainless steel, brass, and aluminum plates of specific dimensions. The current manufacturing process includes grooving, insertion, welding, and finishing. The horizontal and vertical bars are typically made of flat steel. At each intersection of the horizontal and vertical bars, the horizontal bar is inserted into a pre-grooved vertical bar and welded in place, thus forming the self-locking grating.

[0003] However, the welding process requires additional equipment and manual operation, increasing production time and costs; the welded joints are prone to local stress, which may lead to cracking or fatigue failure during long-term use; the welded structure is difficult to disassemble and repair, and the welding marks affect the appearance. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a self-locking grille.

[0005] To achieve the above objectives, the technical solution adopted is:

[0006] A self-locking grid includes crossbars and support bars that are cross-connected. Both the crossbars and support bars are flat plates. A first slot is formed on the side of each support bar. The crossbars and support bars are inserted into each other through the first slot, and are locked together by compression to create a deformation zone. The two side walls of the first slot are respectively provided with arc-shaped protrusions, namely a first arc-shaped protrusion and a second arc-shaped protrusion. The first and second arc-shaped protrusions are staggered. The horizontal distance between the first and second arc-shaped protrusions is less than the thickness of the crossbar. The opening width of the first slot of the support bar is greater than the thickness of the crossbar. The width of the bottom end of the first slot is equal to the thickness of the crossbar. The width of the crossbar is less than or equal to the width of the support bar. The depth of the first slot is less than or equal to half the width of the support bar.

[0007] The beneficial effects of the above technical solution are as follows: A stable support structure is formed by the cross-connected crossbars and the supporting rods below; the use of flat plates makes the overall structure lighter and easier to process, while providing good load-bearing capacity; the first slots on the sides of the crossbars and supporting rods allow for a tight connection, enhancing overall stability; the deformation zone generated by compression effectively locks the connection, preventing loosening or displacement; the arc-shaped protrusions on both sides of the first slot provide additional contact area during insertion, increasing friction and thus improving the connection's strength; the staggered arrangement of the first and second arc-shaped protrusions further enhances the structure's stability and resistance to deformation; the opening size of the first slot is larger than the thickness of the supporting rod. The first and second arc-shaped protrusions are staggered with a horizontal spacing less than the thickness of the crossbar. When the crossbar is inserted, the arc-shaped protrusions contact the surface of the crossbar and compress it, resulting in greater friction and deformation between the crossbar and the support rod. This enhances the locking force between them and prevents the grid from loosening during use. The structure of the arc-shaped protrusions can distribute the stress generated by compression over a larger area, avoiding stress concentration that could lead to localized damage to the crossbar or support rod. This improves the overall strength and service life of the grid. Considering structural stability, the width of the crossbar is less than or equal to the width of the support rod, and the depth of the first slot is less than or equal to half the width of the support rod.

[0008] Based on the above technical solution, the present invention can be further improved as follows:

[0009] Preferably, the radius of the arc-shaped protrusion of the first slot is not less than four times the thickness of the bearing rod.

[0010] The beneficial effects of adopting the above-mentioned preferred technical solution are that the radius of the arc-shaped protrusion of the first groove is not less than 4 times the thickness of the bearing rod, which can ensure the contact length and improve stability.

[0011] Preferably, the crossbar has a second slot with the same shape as the first slot, and the two side walls of the second slot are respectively provided with arc-shaped protrusions, namely a third arc-shaped protrusion and a fourth arc-shaped protrusion. The third arc-shaped protrusion and the fourth arc-shaped protrusion are staggered. The depth of the second slot is less than or equal to half the width of the crossbar, and the first slot and the second slot are interlocked.

[0012] The advantages of adopting the above-mentioned preferred technical solution are as follows: the crossbar can be provided with a second slot or not, which is determined by the relative width of the crossbar and the bearing bar. For example, when the width of the crossbar is less than one-third of the width of the bearing bar, only the bearing bar can be slotted, and the crossbar can be unslotted. The crossbar is directly inserted into the first slot of the bearing bar. If the width of the crossbar is equal to the width of the bearing bar, both the crossbar and the bearing bar can be slotted to a depth of half, ensuring that the upper surfaces of the crossbar and the bearing bar are flat after installation, rather than uneven.

[0013] Preferably, the radius of the arc-shaped protrusion of the second slot is not less than four times the thickness of the crossbar.

[0014] The advantages of adopting the above-mentioned preferred technical solution are that it can guarantee the contact length and improve stability.

[0015] Preferably, the horizontal distance between the third arc-shaped protrusion and the fourth arc-shaped protrusion is less than the thickness of the bearing rod, the opening width of the second groove is greater than the thickness of the bearing rod, the width of the bottom end of the second groove is equal to the thickness of the bearing rod, and the depth of the second groove is less than or equal to half the width of the crossbar.

[0016] Preferably, the crossbar and the load-bearing bar have the same width.

[0017] Preferably, the flat plate is any one of flat steel, flat copper, or flat aluminum.

[0018] The beneficial effects of adopting the above-mentioned preferred technical solutions are as follows: Flat steel, flat copper, and flat aluminum are all common metallic materials with different physical and chemical properties. Flat steel has high strength and hardness, making it suitable for applications bearing heavy loads; flat copper has good electrical conductivity and corrosion resistance, making it suitable for environments requiring high conductivity; flat aluminum has advantages such as light weight and corrosion resistance, making it suitable for applications where weight is a concern. Users can select appropriate materials according to specific usage requirements and environmental conditions to improve the applicability of the grating. These flat plates all have good processing performance, are easy to cut, grooved, and bent, and can meet the manufacturing requirements of self-locking gratings.

[0019] Preferably, the groove depth of the first groove has an interference allowance of 1-2 mm.

[0020] The beneficial effects of adopting the above-mentioned preferred technical solution are as follows: before the crossbar and the bearing rod are inserted and deformed by compression, the depth of the first slot is left with an interference of 1-2mm. The interference is the amount of compression during the locking process. This means that when the crossbar is placed into the first slot, the upper surface of the crossbar is 1-2mm higher than the bearing rod. At this time, a force perpendicular to the grid surface formed by the crossbar and the bearing rod is applied, causing the crossbar to deform downward by 1-2mm and compress the bearing rod, so that the upper surfaces of the crossbar and the bearing rod are level, thereby locking.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: Compared with traditional self-locking grids, the self-locking grid of this utility model does not require welding and leveling processes, which improves the aesthetics of the product. It does not require additional connecting parts (such as bolts, nuts, etc.), which simplifies the grid assembly process and reduces costs. At the same time, the existence of the deformation zone makes the connection between the crossbar and the load-bearing bar more solid, which can effectively resist external forces and ensure the stability of the grid structure. Compared with the traditional welding or bolt connection method, the interlocking plug-in method makes the installation and disassembly of the grid more convenient and quick. When it is necessary to repair, replace parts or adjust the layout of the grid, the crossbar and the load-bearing bar can be easily separated, which improves work efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the plug-in structure of the self-locking grid crossbar and the bearing bar of this utility model;

[0023] Figure 2 This is a schematic diagram of the self-locking grid structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the self-locking grid support rod of this utility model;

[0025] 1. Crossbar; 2. Supporting bar. Detailed Implementation

[0026] The present invention will be described below with reference to examples. The examples are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Reference Figures 1-3A self-locking grille includes crossbars 1 and support bars 2 connected in a cross pattern. Both crossbars 1 and support bars 2 are flat plates. A first slot is formed on the side of each support bar 2. The crossbars 1 and support bars 2 are inserted into the first slot, and are locked together by compression to create a deformation zone. The two side walls of the first slot are respectively provided with arc-shaped protrusions, namely a first arc-shaped protrusion and a second arc-shaped protrusion. The first and second arc-shaped protrusions are staggered, and the horizontal distance between the first and second arc-shaped protrusions is less than the thickness of the crossbar 1 (e.g., ...). Figure 3 At point B in the middle, the opening width of the first slot of the bearing rod 2 is greater than the thickness of the crossbar 1 (e.g., at point B). Figure 3 At point A in the middle, the width of the bottom end of the first slot is equal to the thickness of the crossbar 1 (e.g., at point A). Figure 3 At point C, the width of the crossbar 1 is less than or equal to the width of the bearing bar 2, and the depth of the first slot is less than or equal to half the width of the bearing bar 2.

[0030] In an optional embodiment, the radius of the arc-shaped protrusion of the first slot is not less than four times the thickness of the bearing rod 2.

[0031] In an optional embodiment, the crossbar 1 is provided with a second slot with the same shape as the first slot. The two side walls of the second slot are respectively provided with arc-shaped protrusions, namely a third arc-shaped protrusion and a fourth arc-shaped protrusion. The third arc-shaped protrusion and the fourth arc-shaped protrusion are staggered. The depth of the second slot is less than or equal to half the width of the crossbar 1. The first slot and the second slot are interlocked.

[0032] In an optional embodiment, the radius of the arcuate protrusion of the second slot is not less than four times the thickness of the crossbar 1.

[0033] In an optional embodiment, the horizontal distance between the third arcuate protrusion and the fourth arcuate protrusion is less than the thickness of the support rod 2, the opening width of the second slot is greater than the thickness of the support rod 2, the width of the bottom end of the second slot is equal to the thickness of the support rod 2, and the depth of the second slot is less than or equal to half the width of the crossbar 1.

[0034] In this embodiment, the crossbar 1 and the load-bearing bar 2 have the same width.

[0035] In a preferred embodiment, the flat plate is any one of flat steel, flat copper, or flat aluminum.

[0036] Preferably, the depth of the first groove is left with an interference fit of 1-2 mm.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-locking grid, characterized in that, The cross connecting crossbar and the bearing bar are both flat plates, the side of the bearing bar is provided with a first notch, the crossbar and the bearing bar are inserted through the first notch, the two side walls of the first notch are provided with arc convex parts, which are a first arc convex part and a second arc convex part, the first arc convex part and the second arc convex part are staggered, the horizontal distance between the first arc convex part and the second arc convex part is less than the thickness of the crossbar, the opening width of the first notch of the bearing bar is greater than the thickness of the crossbar, the width of the bottom end of the first notch is equal to the thickness of the crossbar, the width of the crossbar is less than or equal to the width of the bearing bar, and the depth of the first notch is less than or equal to half of the width of the bearing bar.

2. The self-locking grid according to claim 1, characterized in that, The radius corresponding to the arc convex part of the first notch is not less than 4 times the thickness of the bearing bar.

3. The self-locking grid according to claim 1, wherein, The crossbar is provided with a second notch with the same shape as the first notch, the two side walls of the second notch are provided with arc convex parts, which are a third arc convex part and a fourth arc convex part, the third arc convex part and the fourth arc convex part are staggered, the depth of the second notch is less than or equal to half of the width of the crossbar, and the first notch and the second notch are inserted through each other.

4. The self-locking grid according to claim 3, characterized in that, The radius corresponding to the arc convex part of the second notch is not less than 4 times the thickness of the crossbar.

5. The self-locking grid according to claim 4, characterized in that, The horizontal distance between the third arc convex part and the fourth arc convex part is less than the thickness of the bearing bar, the opening width of the second notch is greater than the thickness of the bearing bar, the width of the bottom end of the second notch is equal to the thickness of the bearing bar, and the depth of the second notch is less than or equal to half of the width of the crossbar.

6. The self-locking grid according to claim 1, wherein, The width of the crossbar and the bearing bar is the same.

7. The self-locking grid according to claim 1, wherein, The flat plate is any one of flat steel, flat copper and flat aluminum. The flat plate is any one of flat steel, flat copper and flat aluminum.

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