Dynamic sealing structure of multi-channel optical fiber rotary connector

Abstract

The utility model discloses a dynamic sealing structure of a multi-channel optical fiber rotary connector, and particularly relates to the field of optical fiber connecting structures, which comprises a rotor shell and a stator shell of which the end parts are sleeved together, and a dynamic sealing structure is arranged at the sleeved end part of the rotor shell and the stator shell. The dynamic sealing structure comprises a plastic ring with an opening and a metal elastic piece which is embedded in the plastic ring and provided with an opening. The metal elastic piece exerts pressure outwards to enable the surface of the plastic ring to abut against the surfaces of the rotor shell and the stator shell for sealing. According to the utility model, the plastic ring is extruded outwards by using the metal elastic sheet to apply pressure outwards, so that the plastic ring is attached to the sleeving part of the stator shell and the rotor shell, a dynamic sealing effect is provided for rotation between the stator shell and the rotor shell, and the whole structure is simple and efficient, and is easy to install and use.

Description

Technical Field

[0001] The utility model relates to the field of optical fiber connection structures, and more specifically, to a dynamic sealing structure of a multi-channel optical fiber rotary connector. Background Art

[0002] A fiber optic rotary connector is a device capable of 360-degree unlimited rotation for optical communications. Its primary function is to prevent signal interruption during fiber optic signal transmission. To achieve excellent environmental resistance, a good seal is required, and the placement and installation of the dynamic seal are key factors. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a dynamic sealing structure of a multi-channel optical fiber rotary connector, including a rotor housing and a stator housing whose ends are socketed together, and a dynamic sealing structure is provided at the ends where the rotor housing and the stator housing are socketed. The dynamic sealing structure includes a plastic ring with an opening and a metal spring with an opening embedded in the plastic ring. The metal spring applies pressure outward to press the surface of the plastic ring against the surfaces of the rotor housing and the stator housing for sealing.

[0004] In a preferred embodiment, an inwardly recessed groove is provided inside the stator housing near one end of the rotor housing, a certain gap is left between the outer wall of the rotor housing inserted into the stator housing and the inner wall of the stator housing, and the dynamic sealing structure is located inside the gap and the groove.

[0005] In a preferred embodiment, the cross-sections of the plastic ring and the metal spring are both U-shaped with the openings facing one side of the rotor housing.

[0006] In a preferred embodiment, an inwardly protruding limiting strip is installed at the edge of the plastic ring opening, which limits the metal spring inside the plastic ring, and the side of the plastic ring away from the opening is attached to the inner wall of the groove.

[0007] The technical effects and advantages of this utility model are:

[0008] The utility model utilizes metal shrapnel to apply outward pressure to squeeze the plastic ring outward so that it fits the joint of the stator housing and the rotor housing, providing a dynamic sealing effect for the rotation between the two. The overall structure is simple and efficient, and is easy to install and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0011] Figure 3 For the utility model Figure 2 Schematic diagram of the detailed structure at point A in the middle.

[0012] Explanation of reference numerals: 1 rotor housing, 2 stator housing, 3 dynamic sealing structure, 4 plastic ring, 5 metal spring, 6 groove, 7 limit strip. DETAILED DESCRIPTION

[0013] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0014] like Figure 1-3 The dynamic sealing structure 3 of a multi-channel optical fiber rotary connector shown in the figure includes a rotor housing 1 and a stator housing 2 whose ends are sleeved together. A dynamic sealing structure 3 is provided at the ends where the rotor housing 1 and the stator housing 2 are sleeved together. The dynamic sealing structure 3 includes a plastic ring 4 with an opening and a metal spring 5 with an opening embedded in the plastic ring 4. The metal spring 5 applies outward pressure to press the surface of the plastic ring 4 against the surfaces of the rotor housing 1 and the stator housing 2 for sealing.

[0015] Based on the above, the ends of the rotor housing 1 and the stator housing 2 are sleeved together, and the two are connected by a dynamic sealing structure 3. During the rotation of the rotor housing 1, the metal spring 5 applies pressure outward to perform pressure compensation, so that during the movement of the two, the two sides of the plastic ring 4 are respectively fitted with the sleeved stator housing 2 and rotor housing 1 to achieve stable dynamic sealing.

[0016] like Figure 2-3 As shown, an inwardly recessed groove 6 is provided inside the stator housing 2 near one end of the rotor housing 1. A certain gap is left between the outer wall of the rotor housing 1 inserted into the stator housing 2 and the inner wall of the stator housing 2. The dynamic sealing structure 3 is located inside the gap and the groove 6.

[0017] Based on the above, in order to facilitate the installation of the dynamic sealing structure 3 between the rotor housing 1 and the stator housing 2, a recessed groove 6 is opened on the inner side of the end of the stator housing 2, and the plastic ring 4 in the dynamic sealing structure 3 is clamped in the groove 6 and between the stator housing 2 and the rotor housing 1 to facilitate its positioning.

[0018] like Figure 2-3As shown, the cross-sections of the plastic ring 4 and the metal spring 5 are both U-shaped and the openings are facing one side of the rotor housing 1. An inwardly protruding limiting strip 7 is installed at the edge of the opening of the plastic ring 4. The limiting strip 7 limits the metal spring 5 inside the plastic ring 4, and the side of the plastic ring 4 away from the opening is attached to the inner wall of the groove 6.

[0019] Based on the above, the plastic ring 4 is installed in the gap and groove 6 between the stator housing 2 and the rotor housing 1, and the metal dome 5 is placed on the inner side of the plastic ring 4. The plastic ring 4 and the metal dome 5 have an opening, which faces outward. A limiting strip 7 is provided on the opening side of the plastic ring 4. After the metal dome 5 is placed inside the plastic ring 4, the limiting strip 7 on the opening side can limit the metal dome 5 inside the plastic ring 4. The metal dome 5 applies pressure to press the plastic ring 4 outward, so that it contacts and fits with the rotor housing 1 and the stator housing 2, ensuring a stable rotary seal.

[0020] Furthermore, the dynamic sealing structure 3 is installed in the groove 6 in the stator housing 2, and is a semi-open structure, which is easy to install.

[0021] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A dynamic sealing structure of a multi-channel optical fiber rotary connector, characterized in that: It includes a rotor shell and a stator shell whose ends are socketed together. A dynamic sealing structure is provided at the ends where the rotor shell and the stator shell are socketed. The dynamic sealing structure includes a plastic ring with an opening and a metal spring with an opening embedded in the plastic ring. The metal spring applies pressure outward to press the surface of the plastic ring against the surfaces of the rotor shell and the stator shell for sealing.

2. The dynamic sealing structure of a multi-channel optical fiber rotary connector according to claim 1, characterized in that: An inwardly recessed groove is provided inside the stator housing near one end of the rotor housing. A certain gap is left between the outer wall of the rotor housing inserted into the stator housing and the inner wall of the stator housing. The dynamic sealing structure is located inside the gap and the groove.

3. The dynamic sealing structure of a multi-channel optical fiber rotary connector according to claim 2, characterized in that: The cross sections of the plastic ring and the metal spring are both U-shaped, with the openings facing one side of the rotor housing.

4. The dynamic sealing structure of a multi-channel optical fiber rotary connector according to claim 2, characterized in that: An inwardly protruding limiting strip is installed at the edge of the opening of the plastic ring. The limiting strip limits the metal spring inside the plastic ring, and the side of the plastic ring away from the opening is attached to the inner wall of the groove.

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