CN-121977007-A - Turning riveting helical tooth sealing nut

Abstract

The invention relates to the technical field of riveting fasteners, and particularly discloses a turning riveting helical tooth sealing nut which comprises a main body part (10), a double helical tooth part (20) arranged outside the main body part (10), a turning riveting part (30) arranged in the double helical tooth part (20), a helical groove (40) arranged between the turning riveting part (30) and the double helical tooth part (20), wherein the turning riveting helical tooth sealing nut adopts the double helical tooth part, when the turning riveting helical tooth sealing nut is fixed to a mounting plate, the inner side structure of the mounting plate is pressed into the helical groove to form a concave-convex combined structure, the concave-convex combined structure is a first sealing structure, the mounting plate is buckled below an inner helical tooth to form an inner fastening structure, the inner fastening structure is a second sealing structure, in addition, the structure of the mounting plate outside the double helical tooth part is in meshed connection with an outer helical tooth to form a meshing structure, the third sealing structure is formed, and the three sealing structures complement each other under the condition that gluing and sealing rings are not needed, and the turning nut is guaranteed to have an IP 68-level airtight seal.

Inventors

• HUO YONGJIU
• LIU HUAIWEN
• ZHONG CHUANBING

Assignees

• 坤厚汽车零部件(广东)有限公司

Dates

Publication Date

20260505

Application Date

20260206

Claims (5)

1. 1. The turning riveting helical tooth sealing nut is characterized by comprising a main body part (10), a double helical tooth part (20) arranged outside the main body part (10), a turning riveting part (30) arranged in the double helical tooth part (20), a helical groove (40) arranged between the turning riveting part (30) and the double helical tooth part (20), and a triple sealing structure formed between a mounting plate (50) and the double helical tooth part (20) through the combined action of the double helical tooth part (20) and the helical groove (40).
2. 2. The flip rivet helical tooth seal nut according to claim 1, characterized in that the double helical tooth member (20) comprises a ring body (21), an outer helical tooth (22) arranged at the upper end of the ring body (21), an inner helical tooth (23) arranged at the inner side of the outer helical tooth (22), and a helical ring (24) arranged below the inner helical tooth (23).
3. 3. A clinch helical seal nut as claimed in claim 2, wherein the angle α between the external helical teeth (22) and the plane of the ring body (21) is 30-60 °.
4. 4. A clinch helical seal nut as claimed in claim 2 wherein the angle γ between the external helical teeth (22) and the helical ring (24) is 80-100 °.
5. 5. A clinch helical seal nut as claimed in claim 2, wherein the angle β between the helical ring (24) and the plane of the ring body (21) is 30-60 °.

Description

Turning riveting helical tooth sealing nut Technical Field The invention relates to the technical field of riveting fasteners, in particular to a turnover riveting helical tooth sealing nut. Background The turning rivet nut is the fastening field of instant turning rivet, and is widely used in the assembly of electromechanical and light industry products such as automobiles, aviation, instruments, furniture, decoration and the like. The novel riveting nut is developed for solving the defects that a metal sheet and a thin Guan Hanjie fastening nut are easy to melt, the internal thread is easy to slide, and the like, and is free from tapping the internal thread, welding the fastening nut, high in riveting firmness and convenient to use. The current riveting nut on the market has single function, large torque with relatively small thrust and large air tightness, and in order to improve the air tightness of the riveting nut to the IP68 level under the condition of not influencing the large torque, two methods of gluing and sealing ring are generally adopted on the market. Although the air tightness of the rivet turning nut is temporarily improved to the IP68 level to a certain extent by the method, the air tightness of the rivet turning nut can be obviously reduced and even the sealing effect is lost after the glue is spread and falls off and the sealing ring is oxidized for a long time. Disclosure of Invention The invention aims to overcome the defects of the prior art and provide the turning riveting helical tooth sealing nut, which can enable the air tightness of the turning riveting helical tooth sealing nut to reach the IP68 level under the conditions of large torsion and large thrust without additional gluing and adding a sealing ring, and can not be reduced with time. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The turning riveting helical tooth sealing nut comprises a main body part, a double helical tooth part arranged outside the main body part, and a turning riveting part arranged in the double helical tooth part, wherein a helical groove is arranged between the turning riveting part and the double helical tooth part, and the turning riveting helical tooth sealing nut enables a triple sealing structure to be formed between a mounting plate and the double helical tooth part through the combined action of the double helical tooth part and the helical groove. Preferably, the double helical gear piece comprises a ring body, an outer helical gear arranged at the upper end of the ring body, an inner helical gear arranged at the inner side of the outer helical gear, and a helical ring arranged below the inner helical gear. Preferably, the included angle alpha between the outer helical teeth and the plane of the ring body is 30-60 degrees. Preferably, the included angle gamma between the outer helical teeth and the helical ring is 80-100 degrees. Preferably, the included angle beta between the inclined ring and the plane of the ring body is 30-60 degrees. Compared with the prior art, the application has the following beneficial effects: The double-helical-tooth sealing nut adopts a double-helical-tooth part, a triple sealing structure is formed between a mounting plate and the double-helical-tooth part through the combined action of the double-helical-tooth structure and a helical groove, specifically, after the double-helical-tooth sealing nut is fixed to the mounting plate, the structure of the mounting plate in the double-helical-tooth part is pressed into a helical groove to form a concave-convex combined structure, which is a first sealing structure, the structure of the mounting plate in the double-helical-tooth part is buckled below an inner helical tooth to form an inner fastening structure, which is a second sealing structure, in addition, the structure of the mounting plate outside the double-helical-tooth part is mutually meshed and linked with an outer helical tooth to form a meshing structure, which is a third sealing structure, and the three sealing structures complement each other, so that the double-helical-tooth part inside and outside the double-helical-tooth sealing nut is ensured to have high torsion and high thrust. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present invention and are not limiting of the present invention. FIG. 1 is a schematic view of a clinch helical seal nut according to the present invention; FIG. 2 is a schematic view of the double helical gear of FIG. 1; FIG. 3 is a schematic cross-sectional view of FIG. 2; FIG. 4 is a schematic view of the assembly structure of FIG. 1 and a mounting plate; fig. 5 is an enlarged view of the structure of fig. 4 a. Detailed Description Fo