Round grating fastening structure without screwing nuts

Abstract

The utility model discloses a round grating fastening structure of screwing-free nut, including mounting bolt, screwing-free limit device located outside mounting bolt, screwing-free limit device includes upper sleeve, lower sleeve and limit support subassembly, upper sleeve, limit support subassembly, lower sleeve are equipped outside mounting bolt from top to bottom, limit support subassembly is equipped outside mounting bolt, limit support subassembly is equipped outside mounting bolt, limit support subassembly is equipped outside mounting bolt, limit support subassembly is equipped outside mounting bolt, limit support subassembly is equipped outside mounting bolt, limit support subassembly is equipped outside mounting bolt, limit support subassembly is equipped outside mounting bolt, limit support subassembly is equipped outside mounting bolt. The inner walls of the upper sleeve and the lower sleeve are both in threaded connection with the outer wall of the mounting bolt, an upper sliding sleeve rotationally connected with the bottom of the upper sleeve is arranged on the side, close to the lower sleeve, of the upper sleeve, a lower sliding sleeve rotationally connected with the bottom of the lower sleeve is arranged on the side, close to the upper sleeve, of the lower sleeve, and the limiting supporting assembly is fixedly arranged between the upper sliding sleeve and the lower sliding sleeve. The limiting supporting assembly comprises an upper supporting arm and a lower supporting arm. The utility model belongs to the technical field of grating installation, and particularly provides a round grating fastening structure free of screwing nuts, which is used for overcoming the defects that the construction efficiency is low, and bolts and screws are exposed outside to cause unattractiveness and are easy to pollute and erode.

Description

Technical Field

[0001] This utility model belongs to the field of grid installation technology, specifically referring to a circular grid fastening structure that does not require screwing in nuts. Background Technology

[0002] When installing a grid, the vertical aluminum grid tubes are usually fixed to the horizontal aluminum grid tubes by bolting. The bolts need to be passed through the entire vertical aluminum grid tube for fixing. Holes need to be drilled at the front and back of the vertical aluminum grid tubes. The construction efficiency is low, and the bolts are exposed on the outside, which is not only unsightly, but also easy to be polluted and corroded. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a nut-free circular grid fastening structure to solve the problems of low construction efficiency, unsightly appearance of exposed bolts and screws, and susceptibility to pollution and corrosion.

[0004] The technical solution adopted in this application is as follows:

[0005] This solution provides a nut-free circular grid fastening structure, including mounting bolts, the top of which has a cross-shaped slot.

[0006] It also includes a no-tightening limiting device located outside the mounting bolt. The no-tightening limiting device includes an upper sleeve, a lower sleeve, and a limiting support assembly. The upper sleeve, the limiting support assembly, and the lower sleeve are arranged from top to bottom on the outside of the mounting bolt. The inner walls of the upper sleeve and the lower sleeve are threaded to the outer wall of the mounting bolt. The upper sleeve has an upper sliding sleeve that is rotatably connected to the bottom of the upper sleeve on the side near the lower sleeve. The lower sleeve has a lower sliding sleeve that is rotatably connected to the bottom of the lower sleeve on the side near the upper sleeve. The limiting support assembly is fixedly arranged between the upper sliding sleeve and the lower sliding sleeve.

[0007] Preferably, the limiting support assembly includes an upper support arm and a lower support arm. The top of the upper support arm is provided with a fixing member 1 connected to the upper sliding sleeve, and the bottom of the lower support arm is provided with a fixing member 2 connected to the lower sliding sleeve. The free ends of the upper support arm and the lower support arm are connected by a fixing member 3. The angle between the upper support arm and the fixing member 1 is variable, and the angle between the lower support arm and the fixing member 2 is variable.

[0008] Preferably, the upper support arm and the lower support arm are connected by a fixing member three to form a V-shaped structure with a variable included angle.

[0009] As a preferred embodiment, the upper sleeve is provided with a limiting panel on the side away from the upper sliding sleeve, and the outer edge of the limiting panel is provided with a slot.

[0010] Furthermore, the angle between the upper support arm and the first fixing member is variable, the angle between the lower support arm and the second fixing member is variable, and the first fixing member, the second fixing member, and the third fixing member are hinged seats located between the two.

[0011] Furthermore, the fixing component one, fixing component two, and fixing component three can also be replaced with flexible connecting components.

[0012] As a preferred embodiment, the inner diameters of the upper and lower sliding sleeves are larger than the outer diameter of the mounting bolt, thereby achieving the function of sliding up and down.

[0013] Preferably, a gasket may be provided between the inner periphery of the limiting panel and the mounting bolt.

[0014] Preferably, the outer walls of the upper sleeve and the lower sleeve are provided with retractable spring clips.

[0015] The beneficial effects of this utility model by adopting the above structure are as follows:

[0016] 1. Based on conventional installation bolts, a no-tightening limit device is set on the outside, which reduces the process of tightening nuts in conventional operations, simplifies the installation steps, and adopts manual adjustment to fix the position of the installation bolts, making it flexible and reliable.

[0017] 2. Conceal the bolts inside the upper and lower support arms to avoid exposing all the screws on the outside, improve aesthetics, and reduce the risk of contamination and corrosion. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a nut-free circular grid fastening structure provided in this solution;

[0019] Figure 2 A schematic diagram of a nut-free circular grid fastening structure provided for this solution;

[0020] Figure 3 This is a schematic diagram of the screw-free limiting device in this application. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the screw-free limiting device in this application. Figure 2 .

[0022] The meanings of the labels in the attached diagram are as follows:

[0023] 1. Mounting bolts; 2. Tightening-free limit device; 3. Washers;

[0024] 11. Cross-shaped groove hole;

[0025] 21. Upper sleeve, 22. Lower sleeve, 23. Limiting support assembly, 24. Upper sliding sleeve, 25. Lower sliding sleeve, 26. Limiting panel, 27. Hole and groove, 28. Spring piece;

[0026] 201. Upper support arm; 202. Lower support arm; 203. Fixing component one; 204. Fixing component two; 205. Fixing component three. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Example 1

[0029] Please refer to Figure 1 and Figure 2 As shown, this embodiment provides a circular grid fastening structure that requires no screwing, including a mounting bolt 1. The top of the mounting bolt 1 has a cross-shaped slot 11. It also includes a screwless limiting device 2 located outside the mounting bolt 1. The screwless limiting device 2 includes an upper sleeve 21, a lower sleeve 22, and a limiting support assembly 23. The upper sleeve 21, the limiting support assembly 23, and the lower sleeve 22 are arranged from top to bottom on the outside of the mounting bolt 1. The inner walls of the upper sleeve 21 and the lower sleeve 22 are threaded to the outer wall of the mounting bolt 1. The upper sleeve 21 has an upper sliding sleeve 24 that is rotatably connected to the bottom of the upper sleeve 21 on the side near the lower sleeve 22. The lower sleeve 22 has a lower sliding sleeve 25 that is rotatably connected to the bottom of the lower sleeve 22 on the side near the upper sleeve 21. The limiting support assembly 23 is fixedly disposed between the upper sliding sleeve 24 and the lower sliding sleeve 25.

[0030] Combination Figure 2 and Figure 3 As shown, the limiting support assembly 23 includes an upper support arm 201 and a lower support arm 202. The top of the upper support arm 201 is provided with a fixing member 1 203 connected to the upper sliding sleeve 24. The bottom of the lower support arm 202 is provided with a fixing member 204 connected to the lower sliding sleeve 25. The free ends of the upper support arm 201 and the lower support arm 202 are connected by a fixing member 3 205. The angle between the upper support arm 201 and the fixing member 1 203 is variable, and the angle between the lower support arm 202 and the fixing member 204 is variable.

[0031] The upper support arm 201 and the lower support arm 202 are connected by a fixing member 205 to form a V-shaped structure with a variable included angle. The inner diameters of the upper sliding sleeve 24 and the lower sliding sleeve 25 are larger than the outer diameter of the mounting bolt 1, thereby realizing the function of sliding up and down. The positions of the upper sleeve 21 and the lower sleeve 22 on the mounting bolt 1 are adjusted by rotating the upper sleeve 21 and the lower sleeve 22. Since the upper support arm 201 and the lower support arm 202 are rotatably connected to the upper sliding sleeve 24 and the lower sliding sleeve 25 respectively, it can be ensured that the upper support arm 201 and the lower support arm 202 are on the same horizontal line.

[0032] During adjustment and use, the angle between the upper support arm 201 and the first fixing member 203 is variable, and the angle between the lower support arm 202 and the second fixing member 204 is variable. The first fixing member 203, the second fixing member 204, and the third fixing member 205 are hinge seats located between the two, and can also be replaced with elastic connecting members to meet the requirement that the angle between the upper support arm 201 and the lower support arm 202 can be changed. The unfolded upper support arm 201 and the lower support arm 202 play a supporting and limiting role, producing a self-locking effect.

[0033] Based on the conventional mounting bolt 1, a no-tightening limiting device 2 is installed on its exterior, reducing the need for tightening the nut during conventional operations and simplifying the installation steps. The position of the mounting bolt 1 is manually adjusted, providing flexible and reliable adjustability. At the same time, the bolts are hidden inside the upper support arm 201 and the lower support arm 202, preventing all screws from being exposed on the outside, improving aesthetics, and reducing the risk of contamination and corrosion.

[0034] In addition, a preload is formed between the upper sleeve 21 and the lower sleeve 22 of the V-shaped structure to ensure a firm connection between the fastener and the disc grid, maintaining a tight state even under vibration or dynamic load.

[0035] As a further example:

[0036] like Figure 1 and Figure 4 As shown, the upper sleeve 21 is provided with a limiting panel 26 on the side away from the upper sliding sleeve 24, and a groove 27 is provided at the outer edge of the limiting panel 26.

[0037] A washer 3 can be provided between the inner circumference of the limiting panel 26 and the mounting bolt 1. The outer walls of the upper sleeve 21 and the lower sleeve 22 are provided with retractable spring pieces 28.

[0038] It should be noted that although embodiments of the present invention have been shown and described, those skilled in the art who design similar structures and embodiments without departing from the spirit of the present invention should all fall within the protection scope of the present invention.

Claims

1. A nut-free circular grid fastening structure, comprising a mounting bolt (1), wherein the top of the mounting bolt (1) is provided with a cross-shaped slot (11), characterized in that: It also includes a no-tightening limiting device (2) located outside the mounting bolt (1). The no-tightening limiting device (2) includes an upper sleeve (21), a lower sleeve (22), and a limiting support assembly (23). The upper sleeve (21), the limiting support assembly (23), and the lower sleeve (22) are arranged from top to bottom on the outside of the mounting bolt (1). The inner walls of the upper sleeve (21) and the lower sleeve (22) are threaded to the outer wall of the mounting bolt (1). The upper sleeve (21) is provided with an upper sliding sleeve (24) that is rotatably connected to the bottom of the upper sleeve (21) on the side near the lower sleeve (22). The lower sleeve (22) is provided with a lower sliding sleeve (25) that is rotatably connected to the bottom of the lower sleeve (22) on the side near the upper sleeve (21). The limiting support assembly (23) is fixedly arranged between the upper sliding sleeve (24) and the lower sliding sleeve (25).

2. The circular grid fastening structure with a screwless nut as described in claim 1, characterized in that: The limiting support assembly (23) includes an upper support arm (201) and a lower support arm (202). The top of the upper support arm (201) is provided with a fixing part one (203) connected to the upper sliding sleeve (24). The bottom of the lower support arm (202) is provided with a fixing part two (204) connected to the lower sliding sleeve (25). The free ends of the upper support arm (201) and the lower support arm (202) are connected by a fixing part three (205).

3. The circular grid fastening structure with a screwless nut as described in claim 2, characterized in that: The upper support arm (201) and the lower support arm (202) are connected by a fixing member three (205) to form a V-shaped structure with a variable included angle.

4. The circular grid fastening structure with a screwless nut as described in claim 3, characterized in that: The angle between the upper support arm (201) and the first fixing member (203) is variable, and the angle between the lower support arm (202) and the second fixing member (204) is variable. The first fixing member (203), the second fixing member (204), and the third fixing member (205) are hinged seats or elastic connecting members.

5. The circular grid fastening structure with a screwless nut as described in claim 1, characterized in that: The inner diameters of the upper sliding sleeve (24) and the lower sliding sleeve (25) are larger than the outer diameter of the mounting bolt (1), and the outer walls of the upper sleeve (21) and the lower sleeve (22) are provided with spring pieces (28).

6. The circular grid fastening structure with a screwless nut as described in claim 1, characterized in that: The upper sleeve (21) is provided with a limiting panel (26) on the side away from the upper sliding sleeve (24), and a groove (27) is provided at the outer edge of the limiting panel (26).

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