Threading stud
By using a sealing unit and nut connection structure in the threading stud, the sealing property is enhanced, and the problem of poor sealing effect in the prior art is solved, ensuring the long-term seal reliability of the stud connection.
Patent Information
- Application Number
- CN202420822478.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-19
AI Technical Summary
Existing threaded studs are prone to extrusion errors during sealing treatment, resulting in poor sealing effect and liquid or impurities may enter the shell, affecting long-term sealing use.
A threading stud is designed, using a sealing unit consisting of an upper sealing ring, a lower sealing ring and a corrugated pipe. The main body of the stud is connected to the shell through a nut. The two ends of the corrugated pipe are in conflict with the nut and nut, forming multiple Sealing surface to enhance the sealing properties of the joints.
It effectively improves the sealing after assembly, prevents liquid or impurities from entering, and ensures the reliability of long-term sealing and use.
Smart Images
Figure CN222208562U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of studs and relates to a threading stud. Background Art
[0002] A stud is a cylindrical fastener with a thread on one end. It is widely used in the connection and assembly of equipment, especially for equipment with limited connections, which basically needs to pass through the shell and extend into the shell, which needs to be achieved through studs. During the assembly process, the connection needs to be sealed, but the existing sealing treatment generally uses sealing rings. During actual use, if an extrusion error occurs, it is easy to reduce the sealing extrusion surface, resulting in poor sealing effect. At the same time, when liquid or impurities enter, they may also enter the shell through the threaded section, making it unsuitable for long-term sealing. Summary of the invention
[0003] The utility model aims to provide a threading stud with improved sealing performance in view of the above problems existing in the prior art.
[0004] The purpose of the utility model can be achieved through the following technical solutions: a threading stud, including a stud body with a nut, the lower end of the stud body is provided with a thread, and the upper end surface of the stud body is provided with a through hole that axially penetrates the stud body and the power supply line is installed through it, characterized in that the stud body is provided with a nut connected to it at the thread, the stud body is fitted with a shell through the nut, the shell is provided with an assembly hole for installing the stud body, and the stud body is provided with a sealing unit for strengthening the sealing of the connection and the two ends are respectively in conflict with the nut and the nut.
[0005] In the above-mentioned threading stud, the sealing unit is composed of an upper sealing ring, a lower sealing ring and a bellows. An annular groove for embedding and installing the upper sealing ring is provided on the lower end surface of the nut, and an annular groove for embedding and installing the lower sealing ring is also provided on the upper end surface of the nut. The bellows is sleeved on the stud body, and the two ends of the bellows are respectively in contact with the nut and the nut.
[0006] In the above-mentioned threading stud, both ends of the bellows are provided with folding rings connected thereto and bent outwards, and both end surfaces of the shell at the assembly hole are provided with assembly grooves for installing the corresponding folding rings.
[0007] Compared with the prior art, the threading stud has the following advantages:
[0008] 1. The stud body is provided with a nut connected thereto at the threaded part, and a sealing unit is provided on the stud body for enhancing the sealing of the connection and the two ends of the sealing unit are respectively in contact with the nut and the nut. The above-mentioned structure is provided to enhance the sealing after assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the cross-sectional structure of the threading stud.
[0010] In the figure, 1, nut; 2, stud body; 3, nut; 4, upper sealing ring; 5, lower sealing ring; 6, bellows; 7, folding ring. DETAILED DESCRIPTION
[0011] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0012] like Figure 1 As shown, the threading stud comprises a stud body 2 with a nut 1, the lower end of the stud body 2 is provided with a thread, and the upper end surface of the stud body 2 is provided with a through hole axially penetrating the stud body 2 and through which the power line is installed, the stud body 2 is provided with a nut 3 connected thereto at the threaded portion, the stud body 2 is fitted with a housing through the nut 3, the housing is provided with an assembly hole for installing the stud body 2, the stud body 2 is provided with a sealing unit for enhancing the sealing of the connection and the two ends of the sealing unit are respectively in conflict with the nut 1 and the nut 3, the sealing unit is composed of an upper sealing ring 4 and a lower sealing ring 5 and a bellows 6, an annular groove for embedding and installing an upper sealing ring 4 is provided on the lower end surface of the nut 1, and an annular groove for embedding and installing a lower sealing ring 5 is also provided on the upper end surface of the nut 3, the bellows 6 is sleeved on the stud body 2, and the two ends of the bellows 6 are respectively in contact with the nut 1 and the nut 3, and the bellows 6 will form a plurality of in contact sealing surfaces after compression, thereby enhancing the sealing of the connection, and both ends of the bellows 6 are provided with folding rings 7 connected thereto and bent outwards, and the two end surfaces of the above-mentioned shell located at the assembly hole are provided with assembly grooves for installing corresponding folding rings 7.
[0013] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0014] Although the terms such as nut 1, stud body 2, nut 3, upper sealing ring 4, lower sealing ring 5, bellows 6, hem ring 7 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.
Claims
1. A threading stud, comprising a stud body (2) with a nut (1), the lower end of the stud body (2) being provided with a thread, and the upper end surface of the stud body (2) being provided with a through hole axially penetrating the stud body (2) and through which a power supply line is installed, characterized in that: The stud body (2) is provided with a nut (3) connected thereto at the threaded portion, and the stud body (2) is fitted with a housing through the nut (3). The housing is provided with an assembly hole for mounting the stud body (2). The stud body (2) is provided with a sealing unit for enhancing the sealing performance of the connection and the two ends of the sealing unit are respectively in contact with the nut (1) and the nut (3).
2. A threading stud according to claim 1, characterized in that: The sealing unit is composed of an upper sealing ring (4), a lower sealing ring (5) and a bellows (6); the lower end surface of the nut (1) is provided with an annular groove for the upper sealing ring (4) to be embedded and installed; the upper end surface of the nut (3) is also provided with an annular groove for the lower sealing ring (5) to be embedded and installed; the bellows (6) is sleeved on the stud body (2), and the two ends of the bellows (6) are respectively in contact with the nut (1) and the nut (3).
3. A threading stud according to claim 2, characterized in that: Both ends of the bellows (6) are provided with folding rings (7) connected thereto and bent outwards, and both end surfaces of the housing located at the assembly hole are provided with assembly grooves for mounting corresponding folding rings (7).