ST-type dustproof and waterproof optical fiber connector

Abstract

The utility model relates to an ST type dustproof and waterproof optical fiber connector in the field of optical fiber connectors, which comprises a casing and a sleeve arranged in the casing, a mounting bulge is formed at one end of the casing, a thread part is arranged on the outer surface of the mounting bulge, a plugging end is formed at the end part, extending outwards, of the mounting bulge, a clamping groove is arranged on the plugging end, and the clamping groove is arranged in the casing. A positioning protrusion is formed on the outer surface of the inserting end, the inserting end is detachably sleeved with a protective sleeve, a sleeving groove matched with the inserting end is formed in the protective sleeve, a positioning buckle connected with the clamping groove in a clamped mode is formed on the inner wall of the sleeving groove, and the outer surface of the protective sleeve is connected with an anti-lost ring through a connecting belt. According to the utility model, sealing protection of the plugging end can be completed by using the protective sleeve, so that the protective sleeve is not easy to fall off when being subjected to external force, dust and water vapor are prevented from invading the plugging end, and the protective sleeve can be effectively prevented from being lost or falling off through sleeving of the anti-lost ring under the connection of the connecting belt.

Description

Technical Field

[0001] The utility model relates to the field of optical fiber connectors, in particular to an ST type dustproof and waterproof optical fiber connector. Background Art

[0002] Fiber optic connector, also known as splitter, connector, coupler or flange, is a component used to connect different types of optical fibers in optical fiber communication systems. It usually includes two connectors, one connector is used to connect optical fibers, and the other connector is used to connect other devices, such as optical fiber transceivers, optical fiber switches, optical fiber routers, etc. Fiber optic connectors can realize the interconnection between different types of optical fiber connectors, such as SC, ST, LC, FC, etc., to meet the connection requirements between different devices. Fiber optic connectors are widely used in telecommunication networks, cable TV networks, user loop systems, regional networks and other fields.

[0003] ST fiber optic connector is a common type of fiber optic connector. ST fiber optic connector usually includes a plug and a socket. The plug is generally made of metal or ceramic, with a cylindrical shape, and a raised central guide hole at the front end for guiding the accurate insertion of the optical fiber. The socket matches the shape of the plug and has a groove for accommodating the plug and ensuring accurate docking of the optical fiber. The existing ST fiber optic connector connection characteristics, that is, first insert the optical fiber, and then rotate and fix it to ensure the stability and reliability of the connection.

[0004] However, existing ST fiber optic connectors usually have an elastic dust cover on the connection end to provide a sealed protection for the connection end. The existing dust cover is relatively simple in setting and is prone to expansion after long-term use, causing the sleeve hole gap to continue to increase. There are often gaps at the interface between the plug and the socket. These gaps are easy for dust and water vapor to invade, thereby affecting the transmission quality of the optical fiber and even causing communication failures. In addition, the existing dust cover fixing method is relatively simple in setting. After long-term use, the dust cover is easy to loosen and fall off, and is also easy to be lost, resulting in poor protection for the ST fiber optic connector, further affecting the stability of the connection. Utility Model Content

[0005] The purpose of the utility model is to solve the above defects and provide an ST-type dustproof and waterproof optical fiber connector to solve the technical problem that the protection effect of the connection end of the ST-type connector in the above-mentioned background technology is poor, which easily leads to the intrusion of external dust and water vapor, thereby affecting the sealing protection and stable transmission of the optical fiber connector.

[0006] The purpose of the utility model is achieved by the following methods:

[0007] The ST type dustproof and waterproof optical fiber connector comprises a sleeve arranged inside the shell of a shell, a mounting protrusion is formed at one end of the shell, a threaded portion is provided on the outer surface of the mounting protrusion, a plug-in end is formed at the end of the mounting protrusion extending outward, a clamping groove is provided on the plug-in end, a positioning protrusion is formed on the outer surface of the plug-in end, and a protective sleeve is detachably sleeved on the plug-in end, a sleeve groove matched with the plug-in end is formed inside the protective sleeve, a positioning buckle clamped with the clamping groove is formed on the inner wall of the sleeve groove, and a guide channel is provided on the inner wall of the sleeve groove, a positioning hole is formed at the end of the guide channel extending into the sleeve groove, the protective sleeve is matched with the positioning protrusion through the guide channel, and the positioning protrusion is clamped with the positioning hole by being inserted along the guide channel, and the outer surface of the protective sleeve is connected with an anti-lost ring through a connecting belt.

[0008] Further in the above description, a mounting hole is formed inside the shell, a wire sleeve is connected to the end of the shell, the sleeve is coaxially matched with the mounting hole, and one end of the sleeve extends toward the mounting protrusion, and the other end of the sleeve extends toward the wire sleeve, the sleeve is plugged into the mounting hole and extends toward the wire sleeve, so that it can be connected to an external connection position through the sleeve.

[0009] Further in the above description, a cable is provided inside the wire sleeve, one end of the cable is electrically connected to the sleeve, and the other end of the cable passes through the wire sleeve and extends outward.

[0010] Further in the above description, there are two positioning protrusions, and the two positioning protrusions are symmetrically arranged on the outer side of the plug-in end, the positioning protrusion is adapted to the guide channel, and the protective sleeve is sleeved on the plug-in end through the sleeve groove, so that the guide channel and the positioning protrusion are matched, and when the guide channel is inserted, the positioning hole and the positioning protrusion are adapted, so as to enhance the stability and reliability of the protective sleeve connection, reduce the loosening phenomenon of the protective sleeve, and enhance the sealing protection effect of the plug-in end.

[0011] Further in the above description, a connecting protrusion is formed at one end of the protective sleeve, a connecting hole is opened on the connecting protrusion, one end of the connecting belt is connected to the connecting hole, and the other end of the connecting belt is connected to the anti-loss ring, the anti-loss ring is detachably connected to the shell, and the connecting protrusion is connected to the connecting belt so that it can be connected to the shell through the anti-loss ring. When the optical fiber connector is plugged in and used, after the protective sleeve is removed, the loss of the protective sleeve is reduced under the connection of the connecting belt, thereby enhancing practicality.

[0012] The matching of the snap protrusion and the snap groove ensures a firm connection between the protective cover and the connector, effectively preventing the protective cover from falling off or shifting during the use of the set, thereby ensuring the stability and safety of the optical fiber connector.

[0013] Further in the above description, the clamping groove extends toward the end of the mounting protrusion, and the clamping groove is distributed in an "L" shape.

[0014] The beneficial effects of the utility model are as follows: the plug-in end of the installation protrusion end is plugged into the outside and can be fixed by the card groove on the plug-in end. The threaded part is provided on the outer surface of the installation protrusion, so that after the connector is inserted, it can be conveniently screwed and installed with the threaded part through the external threaded sleeve. This design can further improve the stability of the installation. When the optical fiber connector is disassembled, the positioning buckle in the protective sleeve is matched with the card groove of the plug-in end, and the protective sleeve is easily connected with the positioning protrusion through the guide channel, so as to complete the sealing protection of the plug-in end, reduce the intrusion of dust and water vapor into the plug-in end, and affect the stable use of the plug-in end. During the plug-in process of the protective sleeve and the plug-in end, the positioning protrusion is matched with the positioning hole, which enhances the connection stability between the protective sleeve and the plug-in end, so that the protective sleeve is not easy to fall off when subjected to external force, and the protective sleeve can be effectively prevented from being lost or dropped by the sleeve of the anti-lost ring under the connection of the connecting belt, effectively prolonging the service life of the plug-in end and improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional diagram of this embodiment;

[0016] Figure 2 This is a schematic diagram of the structure of the first direction of this embodiment;

[0017] Figure 3 It is a structural schematic diagram of the second direction of this embodiment;

[0018] Figure 4 is a cross-sectional view of this embodiment;

[0019] The reference numerals in the figure are: 1-shell, 2-sleeve, 3-installing protrusion, 4-threaded portion, 5-plug-in end, 6-clamping groove, 7-positioning protrusion, 8-protective sleeve, 9-sleeve groove, 10-positioning buckle, 11-guide channel, 12-positioning hole, 13-connecting belt, 14-anti-lost ring, 15-wire sleeve, 16-cable, 17-connecting protrusion. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] In this embodiment, refer to Figure 1-Figure 4The ST type dustproof and waterproof optical fiber connector specifically implemented comprises a housing 1 and a sleeve 2 arranged inside the housing 1, wherein a mounting protrusion 3 is formed at one end of the housing 1, a threaded portion 4 is provided on the outer surface of the mounting protrusion 3, a plug-in end 5 is formed at the end extending outward, a clamping groove 6 is provided on the plug-in end 5, a positioning protrusion 7 is formed on the outer surface of the plug-in end 5, and a protective sleeve 8 is detachably sleeved on the plug-in end 5, a sleeve groove 9 matched with the plug-in end 5 is formed inside the protective sleeve 8, a positioning buckle 10 clamped with the clamping groove 6 is formed on the inner wall of the sleeve groove 9, and a guide channel 11 is provided on the inner wall of the sleeve groove 9, a positioning hole 12 is formed at the end of the guide channel 11 extending into the sleeve groove 9, the protective sleeve 8 is matched with the positioning protrusion 7 through the guide channel 11, and the positioning protrusion 7 is clamped with the positioning hole 12 by being inserted along the guide channel 11, and the outer surface of the protective sleeve 8 is connected with an anti-lost ring 14 through a connecting belt 13.

[0022] The housing 1 has a mounting hole formed inside, and a wire sleeve 15 is connected to the end of the housing 1. The sleeve 2 is coaxially matched with the mounting hole, and one end of the sleeve 2 extends toward the mounting protrusion 3, and the other end of the sleeve 2 extends toward the wire sleeve 15. The sleeve 2 is plugged into the mounting hole and extends toward the wire sleeve 15, so that it can be connected to an external connection position through the sleeve 2. A cable 16 is provided inside the wire sleeve 15, one end of the cable 16 is electrically connected to the sleeve 2, and the other end of the cable 16 extends outward through the wire sleeve 15.

[0023] There are two positioning protrusions 7, and the two positioning protrusions 7 are symmetrically arranged on the outer side of the plug-in end 5. The positioning protrusion 7 is adapted to the guide channel 11. The protective sleeve 8 is sleeved on the plug-in end 5 through the sleeve groove 9, so that the guide channel 11 is matched with the positioning protrusion 7, and the positioning hole 12 is adapted to the positioning protrusion 7 when the guide channel 11 is inserted into, so as to enhance the stability and reliability of the connection of the protective sleeve 8, reduce the loosening phenomenon of the protective sleeve 8, and enhance the sealing protection effect of the plug-in end 5.

[0024] A connecting protrusion 17 is formed at one end of the protective sleeve 8, and a connecting hole is opened on the connecting protrusion 17. One end of the connecting belt 13 is connected to the connecting hole, and the other end of the connecting belt 13 is connected to the anti-lost ring 14. The anti-lost ring 14 is detachably connected to the shell 1. By connecting the connecting protrusion 17 and the connecting belt 13, it is connected to the shell 1 through the anti-lost ring 14. When the optical fiber connector is plugged in and used, after the protective sleeve 8 is removed, the loss of the protective sleeve 8 is reduced under the connection of the connecting belt 13, thereby enhancing practicality.

[0025] The clamping groove 6 extends toward the end of the mounting protrusion 3 , and the clamping groove 6 is distributed in an “L” shape.

[0026] The specific use process of this embodiment is as follows: when the optical fiber connector is used, the plug-in end 5 at the end of the mounting protrusion 3 is plugged into the outside, and rotated so that the clamping groove 6 on the plug-in end 5 can be clamped and fixed, and the threaded portion 4 provided on the outer surface of the mounting protrusion 3 is used so that after the connector is inserted, the external connection is connected to the threaded sleeve (not shown) so that it can be rotated, so that the external threaded sleeve (not shown) can be conveniently screwed and installed with the threaded portion 4, and this design can further improve the stability of the installation;

[0027] After the optical fiber connector is disassembled, the positioning buckle 10 in the protective sleeve 8 is matched with the clamping groove 6 of the plug-in terminal 5, and the protective sleeve 8 is easily connected with the positioning protrusion 7 through the guide channel 11, so as to complete the sealing protection of the plug-in terminal 5 and reduce the intrusion of dust and water vapor into the plug-in terminal 5, which affects the stable use of the plug-in terminal 5. During the plug-in process of the protective sleeve 8 and the plug-in terminal 5, the positioning protrusion 7 is matched with the positioning hole 12, which enhances the connection stability between the protective sleeve 8 and the plug-in terminal 5, making it difficult for the protective sleeve 8 to fall off when subjected to external force, and by the anti-lost ring 14 being sleeved on the shell 1, it can effectively prevent the protective sleeve 8 from being lost or falling under the connection of the connecting belt 13, effectively extending the service life of the plug-in terminal 5 and improving the convenience of operation.

[0028] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. ST type dustproof and waterproof optical fiber connector, comprising a housing and a sleeve arranged inside the housing, characterized in that: A mounting protrusion is formed at one end of the shell, and a threaded portion is provided on the outer surface of the mounting protrusion, and a plug-in end is formed at the end of the mounting protrusion extending outward, and a clamping groove is provided on the plug-in end, a positioning protrusion is formed on the outer surface of the plug-in end, and a protective sleeve is detachably sleeved on the plug-in end, a sleeve groove matched with the plug-in end is formed inside the protective sleeve, a positioning buckle clamped with the clamping groove is formed on the inner wall of the sleeve groove, and a guide channel is provided on the inner wall of the sleeve groove, and a positioning hole is formed at the end of the guide channel extending into the sleeve groove, the protective sleeve is paired with the positioning protrusion through the guide channel, and is inserted along the guide channel so that the positioning protrusion is clamped with the positioning hole, and the outer surface of the protective sleeve is connected with an anti-lost ring through a connecting belt.

2. The ST type dustproof and waterproof optical fiber connector according to claim 1, characterized in that: A mounting hole is formed inside the shell, a wire sleeve is connected to the end of the shell, the sleeve is coaxially matched with the mounting hole, one end of the sleeve extends toward the mounting protrusion, and the other end of the sleeve extends toward the wire sleeve.

3. The ST type dustproof and waterproof optical fiber connector according to claim 2, characterized in that: A cable is arranged inside the wire sleeve, one end of the cable is electrically connected to the sleeve, and the other end of the cable passes through the wire sleeve and extends outward.

4. The ST type dustproof and waterproof optical fiber connector according to claim 1, characterized in that: There are two positioning protrusions, and the two positioning protrusions are symmetrically arranged on the outer side surface of the plug-in end, and the positioning protrusions are adapted to the guide channel.

5. The ST-type dustproof and waterproof optical fiber connector according to any one of claims 1 to 4, characterized in that: A connecting protrusion is formed at one end of the protective sleeve, a connecting hole is opened on the connecting protrusion, one end of the connecting belt is connected to the connecting hole, and the other end of the connecting belt is connected to the anti-lost ring, and the anti-lost ring is detachably connected to the shell.

6. The ST-type dustproof and waterproof optical fiber connector according to any one of claims 1 to 4, characterized in that: The clamping groove extends toward the end of the mounting protrusion, and the clamping groove is distributed in an "L" shape.

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