A rotating self-locking SC type optical cable connector and its assembly structure

Abstract

The present invention provides a rotating self-locking SC type optical cable connector and its assembly structure, wherein a core with a tail handle, a spring and a stop seat are provided between the SC inner frame and the SC rotating outer frame of the connector, a rotating pull rod, a horn ring and a circular ring are provided between the SC rotating outer frame and the tail sleeve, and an optical cable is connected from the tail sleeve; an inclined boss and a raised column are provided on the top of the SC inner frame, and arc holes matching with the arc block on the stop seat are provided on the two side walls at the rear end of the SC inner frame; a first groove matching with the raised column is provided on the top of the SC rotating outer frame, the front end of the SC rotating outer frame matches with the inclined boss, the rear end of the SC rotating outer frame is provided with a second groove, and the front end of the SC rotating outer frame is provided with a third groove; the front end of the rotating pull rod is provided with a block matching with the second groove, and the rear end is provided with a handle. The present invention locks the optical cable connector through a unique self-locking structure to prevent the connector from being pulled out by mistake, ensure the connection reliability of the connector and the adapter, ensure the smooth connection of the network signal, and improve the safety of the connector.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cable connectors and assembly structures thereof, and in particular to a rotary self-locking SC type optical cable connector and an assembly structure thereof. Background Art

[0002] With the rapid development of the optical communication industry, conventional optical patch cords, optical connectors and other products are widely used, especially conventional LC, SC, FC, ST and other optical cable connectors. In the application of FTTH fiber to the home, chassis, and optical modems, the demand for SC type connectors has greatly increased.

[0003] The existing SC type optical cable connector is connected to the adapter with a bayonet structure. The bayonet structure can easily pull out the SC type optical cable connector during use in the data center chassis, and it is impossible to prevent the connection interruption caused by mis-pulling, thereby causing losses. For example, if the optical modem is connected for a long time or is accidentally pulled out, the SC type optical cable connector is easy to fall off, causing the connector end face to be dirty. If it is handled by non-professionals, the connector end face that has not been re-wiped is directly inserted back. The dirt on the end face will seriously affect the network signal. At this time, repairs require professional maintenance, and the maintenance and cause investigation work will waste a lot of time and resources; or non-professionals accidentally put the optical fiber head directly to the eyes during operation, which is easy to cause accidental injury. This is because the optical fiber transmits mostly 1310nm or 1550nm wavelength lasers, which are infrared light and cannot be seen by the naked eye. Therefore, the existing SC type optical cable connector cannot effectively prevent mis-pulling. After the connector falls off, the dirty end face will affect the network signal, and the optical fiber head of the connector after it falls off is easy to cause damage to the eyes. Summary of the invention

[0004] The present invention provides a rotating self-locking SC type optical cable connector and an assembly structure thereof, which locks the optical cable connector through a unique self-locking structure to prevent the connector from being accidentally unplugged, ensure the connection reliability between the connector and the adapter, ensure the smooth connection of the network signal, and improve the safety of the connector.

[0005] The technical solution adopted by the present invention to solve the above problems is:

[0006] The present invention provides a rotating self-locking SC type optical cable connector, comprising an SC inner frame, an SC rotating outer frame and a tail sleeve, wherein a core with a tail handle, a spring and a stop seat are provided between the SC inner frame and the SC rotating outer frame, and a rotating pull rod, a horn ring and a circular ring are provided between the SC rotating outer frame and the tail sleeve, and the optical cable is connected from the tail sleeve; an inclined boss and a raised column are provided on the top of the SC inner frame, and a pair of arc-shaped holes matched with a pair of arc-shaped blocks on the stop seat are provided on the two side walls at the rear end of the SC inner frame; a first groove matched with the raised column is provided on the middle top of the SC rotating outer frame, the front end of the SC rotating outer frame matches with the inclined boss, the two side walls at the rear end of the SC rotating outer frame are provided with a pair of second grooves, and the two side walls at the front end of the SC rotating outer frame are provided with a pair of third grooves; a pair of blocks matched with the second groove are provided on the outer sides of the two side rods at the front end of the rotating pull rod, and a handle is provided on the rear end of the rotating pull rod.

[0007] Furthermore, the front end of the tail handle insert is inserted into the rear end of the SC inner frame, the rear end of the tail handle insert is inserted into the front end of the stop seat after passing through the spring, the rear end of the stop seat is inserted into the SC rotating outer frame and engaged with the front end of the horn ring, and the rear end of the horn ring passes through the circular ring.

[0008] Furthermore, the outer surface of the rear end of the stop seat is configured as a friction surface arranged by protruding blocks.

[0009] Furthermore, the upper and lower walls at the rear end of the SC rotating outer frame are provided with arc-shaped bidirectional arrow rotation marks.

[0010] Furthermore, the rotating pull rod is in a transverse U-shape, and the two side rods at the front end and the handle at the rear end are connected by oblique rods at both sides.

[0011] Furthermore, a dust cap is inserted into the front end of the SC inner frame.

[0012] The present invention also provides an assembly structure of the rotating self-locking SC type optical cable connector, the key of which is that the front end of the rotating self-locking SC type optical cable connector is inserted into the bayonet of the adapter, and the bayonet of the adapter is provided with a pair of hooks that snap-fit ​​with the third grooves on the front side walls of the SC rotating outer frame.

[0013] Furthermore, the adapter is provided with two opposite bayonet sockets, each bayonet socket being equipped with a rotating self-locking SC type optical cable connector.

[0014] The beneficial effects of the present invention are:

[0015] The rotating self-locking SC type optical cable connector of the present invention locks the optical cable connector through a unique self-locking structure to prevent the connector from being accidentally unplugged, making it difficult for the connector to fall off from the adapter, reducing the maintenance cost of the connector, and ensuring the connection reliability between the connector and the adapter, thereby ensuring a smooth connection of the network signal; since the connector is not easy to fall off, the optical cable head is prevented from hurting the eyes, thereby improving the safety of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded schematic diagram of the rotary self-locking SC type optical cable connector of the present invention;

[0017] Figure 2 It is a schematic diagram of the assembly structure of the rotary self-locking SC type optical cable connector of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the SC inner frame in the rotary self-locking SC type optical cable connector of the present invention;

[0019] Figure 4 It is a structural schematic diagram of a stop seat in a rotational self-locking SC type optical cable connector of the present invention;

[0020] Figure 5 It is a schematic structural diagram of the SC rotating outer frame in the rotating self-locking SC type optical cable connector of the present invention;

[0021] Figure 6 It is a schematic structural diagram of a rotating pull rod in a rotating self-locking SC type optical cable connector of the present invention;

[0022] Figure 7 It is a structural schematic diagram of an adapter in the assembly structure of a rotational self-locking SC type optical cable connector of the present invention;

[0023] Figure 8 It is a schematic diagram of the single-port assembly structure of the rotary self-locking SC type optical cable connector of the present invention;

[0024] Fig. 9 It is a schematic diagram of the double-port assembly structure of the rotary self-locking SC type optical cable connector of the present invention. DETAILED DESCRIPTION

[0025] The following specifically describes the embodiments of the present invention in conjunction with the accompanying drawings, which are only for reference and illustration and do not constitute a limitation on the scope of patent protection of the present invention.

[0026] like Figure 1-2 As shown, this embodiment provides a rotating self-locking SC type optical cable connector, including an SC inner frame 2, an SC rotating outer frame 6 and a tail sleeve 10, a ferrule 3 with a tail handle, a spring 4 and a stopper 5 are provided between the SC inner frame 2 and the SC rotating outer frame 6, a rotating pull rod 7, a horn ring 8, and a circular ring 9 are provided between the SC rotating outer frame 6 and the tail sleeve 10, and an optical cable 11 is connected from the tail sleeve 10; Figure 3-4 As shown, the top of the SC inner frame 2 is provided with an inclined boss 201 and a protruding column 202, and the two side walls of the rear end of the SC inner frame 2 are provided with a pair of arc-shaped holes 203 that match with a pair of arc-shaped blocks 501 on the stop seat 5; Figure 5As shown, the middle top of the SC rotating outer frame 6 is provided with a first groove 602 that matches the raised column 202, the front end of the SC rotating outer frame 6 matches the inclined boss 201, the rear end side walls of the SC rotating outer frame 6 are provided with a pair of second grooves 603, and the front end side walls of the SC rotating outer frame 6 are provided with a pair of third grooves 601; Figure 6 As shown, a pair of blocks 701 matching with the second groove 603 are provided on the outer sides of the front end of the rotating pull rod 7, and a handle 702 is provided at the rear end of the rotating pull rod 7.

[0027] In this embodiment, the front end of the tail handle core 3 is inserted into the rear end of the SC inner frame 2, the rear end of the tail handle core 3 passes through the spring 4 and then passes through the front end of the stop seat 5, the rear end of the stop seat 5 passes through the SC rotating outer frame 6 and engages with the front end of the horn ring 8, and the rear end of the horn ring 8 passes through the circular ring 9.

[0028] In this embodiment, the rotary self-locking SC type connector of the present invention is suitable for SC 0.9 / 2.0 / 3.0 mm soft tail connector.

[0029] In this embodiment, the SC inner frame 2 mainly serves to transfer and fix the ferrule 3 with a tail handle. The inclined boss 201 of the SC inner frame 2 cooperates with the front end of the SC rotating outer frame 6 to limit and fix the SC rotating outer frame 6. The raised column 202 of the SC inner frame 2 matches with the first groove 602 of the SC rotating outer frame 6 to prevent the SC rotating outer frame 6 from self-rotating and play a self-locking role. The pair of arc holes 203 of the SC inner frame 2 matches with the pair of arc blocks 501 of the stop seat 5 to connect and fix the stop seat 5.

[0030] In this embodiment, if Figure 4 As shown, the outer surface of the rear end of the stop seat 5 is configured as a friction surface arranged by protruding blocks.

[0031] In this embodiment, the SC rotating outer frame 6 mainly serves to connect the SC inner frame 2 and match the adapter 12. The first groove 602 of the SC rotating outer frame 6 matches the protruding column 202 of the SC inner frame 2 to lock the connection between the SC rotating outer frame 6 and the SC inner frame 2; the second groove 603 of the SC rotating outer frame 6 matches the block 701 on the outer side of the front side of the rotating rod 7 to connect the SC rotating outer frame 6 and fix the rotating rod 7; a pair of third grooves 601 on the front side walls of the SC rotating outer frame 6 matches the hook 1201 in the bayonet of the adapter 12 to fix and lock the SC connector; Figure 5 As shown, the upper and lower walls at the rear end of the SC rotating outer frame 6 are provided with arc-shaped double-arrow rotation marks 604. It can be seen from the rotation mark 604 that rotating 90° clockwise will lock the SC connector, and rotating 90° counterclockwise will loosen the connection of the SC connector.

[0032] In this embodiment, if Figure 6 As shown, the rotating rod 7 is in a transverse U-shape, and the two side rods at the front end are connected to the handle 702 at the rear end through the two side diagonal rods. The rotating rod 7 mainly rotates the SC rotating outer frame 6; the handle 702 is the position where the constructor holds the hand. When the SC connector is inserted into the adapter 12, the constructor can hold the handle 702 and rotate the SC rotating outer frame 690° clockwise to lock the connection between the connector and the adapter; hold the handle 702 and rotate the SC rotating outer frame 690° counterclockwise to loosen the connection between the connector and the adapter.

[0033] In this embodiment, if Figure 1 As shown, a dust cap 1 is inserted into the front end of the SC inner frame 2 .

[0034] like Figure 7-8 As shown, the present invention also provides an assembly structure of the rotating self-locking SC type optical cable connector, the key of which is that the front end of the rotating self-locking SC type optical cable connector is inserted into the bayonet of the adapter 12, and the bayonet of the adapter 12 is provided with a pair of hooks 1201 that snap-fit ​​with the third grooves 601 on the front side walls of the SC rotating outer frame 6.

[0035] In this embodiment, if Fig. 9 As shown, the adapter 12 is provided with two opposite bayonet holes, each bayonet hole is equipped with a rotating self-locking SC type optical cable connector.

[0036] The working process of the present invention is:

[0037] When using Figure 1 Insert the ferrule 3 with tail handle into the optical fiber for curing, and then use the bare ferrule for grinding. Figure 1 Assemble the connectors in the order of workpieces 1 to 5. Figure 1 Push the horn ring 8 in the middle, use the crimping machine to crimp the aramid, then push the ring 9, use the crimping machine to crimp the cable skin, and after completion, push the tail sleeve 10, assemble the SC rotating outer frame 6 and the rotating pull rod 7 respectively, and assemble as shown below. Figure 2 The finished product of the rotating self-locking SC type connector is shown. After the assembly is completed, hold the rotating pull rod 7 to insert the rotating self-locking SC type connector into the bayonet of the SC type conventional adapter 12, and rotate it 90° clockwise to lock the connection between the SC connector and the adapter. If you need to loosen the connection between the SC connector and the adapter, you can only rotate the rotating pull rod 7 90° counterclockwise, as shown in FIG. Figure 8 As shown, otherwise the SC connector cannot be pulled out; when the rotating pull rod 7 is removed, the SC connector can be effectively prevented from being pulled out by mistake. Fig. 9 As shown, another rotating self-locking SC connector is inserted into the other end of the SC regular adapter to complete the SC connector docking.

[0038] The rotary self-locking SC type connector of the present invention can withstand the inspection of mechanical environmental tests such as tension, falling, torsion, bending, vibration, double 85, high and low temperature cycle, high temperature and high humidity, high temperature, and low temperature under certain conditions. The present invention can be widely used in FTTX and telecommunications rooms, data centers, and optical modem terminals. The connector with a self-locking function realizes the safety and reliability of the connection and ensures the smooth connection of the network signal. The rotary self-locking SC type optical cable connector of the present invention is adapted to conventional SC adapters. In places such as telecommunications rooms and data centers where conventional SC adapters have been installed in large quantities, it only needs to be replaced with this connector to realize the safety network self-locking function, which greatly saves costs. The rotary self-locking SC type connector of the present invention has stable operation, safe connection, high working efficiency, and simple operation.

[0039] If the above parts, such as the key structures and dimensions of the SC inner frame 2, the rotating outer frame SC6, and the rotating pull rod 7, are modified, but the overall assembly structure and principle are similar to those shown in the embodiment of the present invention, they are still considered to belong to the protection scope of the present invention.

[0040] The present invention is also applicable to various SC-type connectors such as hot-melt quick connectors and cold-connect quick connectors. If modified to other types of connectors, they are still considered to fall within the protection scope of the present invention.

[0041] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A rotating self-locking SC type optical cable connector, characterized in that: It includes an SC inner frame, an SC rotating outer frame and a tail sleeve, a core with a tail handle, a spring and a stop seat are provided between the SC inner frame and the SC rotating outer frame, a rotating pull rod, a horn ring and a circular ring are provided between the SC rotating outer frame and the tail sleeve, and the optical cable is connected from the tail sleeve; an inclined boss and a raised column are provided on the top of the SC inner frame, and a pair of arc-shaped holes matching with a pair of arc-shaped blocks on the stop seat are provided on the two side walls at the rear end of the SC inner frame; a first groove matching with the raised column is provided on the middle top of the SC rotating outer frame, the front end of the SC rotating outer frame matches with the inclined boss, a pair of second grooves are provided on the two side walls at the rear end of the SC rotating outer frame, and a pair of third grooves are provided on the two side walls at the front end of the SC rotating outer frame; a pair of blocks matching with the second groove are provided on the outer sides of the two side rods at the front end of the rotating pull rod, a handle is provided on the rear end of the rotating pull rod, and a dust cap is inserted into the front end of the SC inner frame The front end of the tail handle insert is inserted into the rear end of the SC inner frame, the rear end of the tail handle insert is inserted into the front end of the stop seat after passing through the spring, the rear end of the stop seat is inserted into the SC rotating outer frame and engaged with the front end of the horn ring, and the rear end of the horn ring passes through the circular ring.

2. The rotary self-locking SC type optical cable connector according to claim 1, characterized in that: The outer surface of the rear end of the stop seat is configured as a friction surface arranged by protruding blocks.

3. The rotational self-locking SC type optical cable connector according to claim 1, characterized in that: The upper and lower walls at the rear end of the SC rotating outer frame are provided with arc-shaped double-directional arrow rotation marks.

4. The rotational self-locking SC type optical cable connector according to claim 1, characterized in that: The rotating pull rod is in a transverse U-shape, and the two side rods at the front end and the handle at the rear end are connected by the oblique rods at both sides.

5. An assembly structure of a rotational self-locking SC type optical cable connector according to claim 1, characterized in that: The front end of the rotating self-locking SC type optical cable connector is inserted into the bayonet of the adapter, and a pair of hooks are provided in the bayonet of the adapter to snap fit with the third grooves on the two side walls of the front end of the SC rotating outer frame 6.

6. The assembly structure of the rotational self-locking SC type optical cable connector according to claim 5, characterized in that: The adapter is provided with two opposite bayonet ports, each bayonet port is equipped with a rotating self-locking SC type optical cable connector.

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