Unlocking buckle for SC type self-locking optical fiber connector

Abstract

The utility model discloses an unlocking buckle for an SC type self-locking optical fiber connector, which comprises a U-shaped clamping block, a U-shaped boss which is arranged on the inner wall of the U-shaped clamping block and is flush with one side edge, and a plurality of convex columns which are arranged on the inner wall of the U-shaped clamping block at equal intervals and are flush with the other side edge, one end of each convex column is connected with the U-shaped boss, and the other end of each convex column is connected with the other side edge of the U-shaped clamping block. A chamfer angle is formed at the other end of the convex column; the U-shaped boss is contacted with a step on a locking ring of the optical fiber connector body; and the convex column is clamped with a groove on the locking ring. When the unlocking buckle is used, the unlocking buckle is clamped along one end of the step of the locking ring, the U-shaped boss is contacted with the step on the locking ring, and the convex column is clamped with the groove on the locking ring, so that the unlocking buckle is quickly clamped with the locking ring of the optical fiber connector, and then the unlocking buckle is pushed towards the direction of a thread bushing of the optical fiber connector. The unlocking buckle drives the locking ring to move, the unlocking buckle is further rotated to drive the locking ring to rotate, and therefore rapid unlocking is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber active connectors, in particular to an unlocking buckle for an SC type self-locking optical fiber connector. Background Art

[0002] The SC self-locking connector is a fiber optic connector with MT contacts inside. The connection is achieved through positioning keys and threaded engagement. In order to prevent the threaded sleeve at the connector plug end from loosening in a vibration environment and thus affecting the connection reliability, a locking ring with teeth on the end face of a compression spring is used to achieve mechanical anti-loosening. The specific anti-loosening form is that the ring teeth on the end face of the threaded sleeve mesh with the ring teeth of the locking ring, and under the action of the compression spring, a certain contact force is maintained. The locking ring constrains the rotational movement of the threaded sleeve to achieve anti-loosening of the threaded connection. When the connection needs to be disconnected, it is necessary to overcome the spring force, move the locking ring axially away from the threaded sleeve, and disengage the ring teeth. Then rotate the locking ring and lock the screw structure inside the connector to prevent the locking ring from approaching the threaded sleeve. At this time, the threaded sleeve is not constrained by the locking ring, so that the connector can be rotated to disconnect. Due to the compact size of the optical fiber connector itself, the protrusion on the locking ring used to increase the friction with the finger is very shallow, and the elastic force of the spring must be overcome when unlocking, which can easily cause uneven force on the locking ring or finger slippage, resulting in unlocking failure. Especially when unlocking the connector in a narrow space, only two fingers are involved in the force, which makes unlocking failure more likely. In order to achieve successful unlocking, multiple attempts are often required, which seriously affects work efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide an unlocking buckle for an SC-type self-locking optical fiber connector, so as to solve the problem that when the existing SC-type self-locking optical fiber connector is used in a narrow space, the locking ring is unlocked due to uneven force and finger slippage, thereby preventing quick unlocking.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] An unlocking buckle for an SC type self-locking optical fiber connector comprises: a U-shaped card block, a U-shaped boss arranged on the inner wall of the U-shaped card block and flush with one side, and a plurality of convex columns arranged at equal intervals on the inner wall of the U-shaped card block and flush with the other side, one end of the convex column is connected to the U-shaped boss, and the other end of the convex column is provided with a chamfered angle;

[0006] The U-shaped boss contacts the step on the locking ring of the optical fiber connector body, and the boss is clamped with the groove on the locking ring.

[0007] Furthermore, a convex rib is provided around one side of the outer wall of the U-shaped clamping block close to the convex column.

[0008] Furthermore, the convex rib and the U-shaped clamping block are integrally formed.

[0009] Furthermore, at least one convex rib is provided.

[0010] Furthermore, the U-shaped block comprises a first section, a first arc section and a second section which are connected in sequence, the first section is parallel to the second section, a connecting block is provided on the outer wall of the first arc section, and a connecting hole is provided on the connecting block.

[0011] Furthermore, the circumference of the U-shaped boss is smaller than the circumference of the U-shaped block.

[0012] Furthermore, the above-mentioned U-shaped boss includes a first straight line segment, a second arc segment and a second straight line segment connected in sequence, the first straight line segment is arranged on the inner wall of the first segment, the second arc segment is arranged on the inner wall of the first arc segment, the second straight line segment is arranged on the inner wall of the second segment, and the length of the first straight line segment is smaller than the length of the first segment, and the length of the second straight line segment is smaller than the length of the second segment.

[0013] The utility model has the following beneficial effects:

[0014] 1. When the unlocking buckle for the SC type self-locking optical fiber connector of the utility model is used, the unlocking buckle is inserted along one end of the step of the locking ring, and the U-shaped boss on the inner wall of the U-shaped block is in contact with the step on the locking ring of the optical fiber connector body, and the convex column is engaged with the groove on the locking ring. The chamfered angle on the convex column facilitates rapid engagement with the groove on the locking ring, thereby quickly engaging the unlocking buckle with the locking ring of the optical fiber connector, and then pushing the unlocking buckle toward the threaded sleeve of the optical fiber connector, the unlocking buckle drives the locking ring to move, and further rotating the unlocking buckle drives the locking ring to rotate, thereby realizing rapid unlocking, solving the problem of inconvenient unlocking of the optical fiber connector when used in a narrow space, and realizing efficient unlocking.

[0015] 2. The SC type self-locking optical fiber connector of the utility model is used to strengthen the structural strength of the U-shaped card block by providing a convex rib, and also serves as a push-pull force point for fingers, which is convenient for use.

[0016] 3. The SC type self-locking optical fiber connector of the utility model has a connecting block arranged on the outer wall of the first arc segment on the U-shaped card block, and a connecting hole is provided on the connecting block. A thin rope is passed through the connecting hole and connected to the optical fiber connector body, which can prevent the unlocking buckle from being left behind and lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the unlocking buckle for the SC type self-locking optical fiber connector;

[0018] Figure 2 It is a schematic diagram of the specific structure of the unlocking buckle for the SC type self-locking optical fiber connector;

[0019] Figure 3 It is a schematic diagram of the structure of an unlocking buckle for an SC type self-locking optical fiber connector;

[0020] Figure 4 This is a schematic diagram of the usage status of the SC type self-locking optical fiber connector with an unlocking buckle.

[0021] In the figure: 1, U-shaped block; 11, first section; 12, first arc section; 13, second section; 2, U-shaped boss; 21, first straight section; 22, second arc section; 23, second straight section; 3, boss; 31, chamfer; 4, optical fiber connector body; 41, locking ring; 42, step; 43, groove; 5, convex rib; 6, connecting block; 61, connecting hole. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] like Figures 1 to 4 As shown, in the embodiment of the present invention, there is provided an unlocking buckle for an SC type self-locking optical fiber connector, comprising: a U-shaped block 1, a U-shaped boss 2, and a plurality of bosses 3, wherein the U-shaped boss 2 is arranged on the inner wall of the U-shaped block 1 and is flush with one side, all bosses 3 are arranged at equal intervals on the inner wall of the U-shaped block 1 and are flush with the other side, and one end of the boss 3 is connected to the U-shaped boss 2, and the other end of the boss 3 is provided with a chamfer 31, which facilitates the boss 3 to quickly engage with the groove 43 on the locking ring 41; the U-shaped boss 2 contacts the step 42 on the locking ring 41 of the optical fiber connector body 4, and the boss 3 engages with the groove 43 on the locking ring 41. Among them, the side of the U-shaped block 1 and the U-shaped boss 2 close to the central axis is the inner side, and the side away from the central axis is the outer side. When in use, the unlocking buckle is inserted along one end of the step 42 of the locking ring 41 of the optical fiber connector body 4, and the U-shaped boss 2 is in contact with the step 42 on the locking ring 41, and the boss 3 is engaged with the groove 43 on the locking ring 41, so that the unlocking buckle is quickly engaged with the locking ring 41, and then the unlocking buckle is pushed toward the threaded sleeve direction of the optical fiber connector, and the unlocking buckle drives the locking ring 41 to move, and further rotating the unlocking buckle drives the locking ring 41 to rotate, thereby achieving fast and efficient unlocking; and the unlocking buckle is small in size, which solves the problem of inconvenient unlocking of the optical fiber connector when used in a narrow space.

[0024] like Figure 3 and Figure 4As shown, the circumference of the U-shaped boss 2 is smaller than that of the U-shaped block 1. Specifically, the U-shaped block 1 includes a first segment 11, a first arc segment 12 and a second segment 13 connected in sequence, the first segment 11 is parallel to the second segment 13, the U-shaped boss 2 includes a first straight segment 21, a second arc segment 22 and a second straight segment 23 connected in sequence, the first straight segment 21 is arranged on the inner wall of the first segment 11, the second arc segment 22 is arranged on the inner wall of the first arc segment 12, the second straight segment 23 is arranged on the inner wall of the second segment 13, and the length of the first straight segment 21 is smaller than that of the first segment 11, and the length of the second straight segment 23 is smaller than that of the second segment 13. Such a configuration ensures that the U-shaped boss 2 can be engaged with the step 42 on the locking ring 41 while also saving costs.

[0025] At the same time, a convex rib 5 is provided on one side of the outer wall of the U-shaped card block 1 close to the protrusion 3. The convex rib 5 is used to strengthen the structural strength of the U-shaped card block 1, thereby increasing the structural strength of the unlocking buckle, and also serves as a force bearing point for pushing and pulling of fingers, which is convenient for use; and the convex rib 5 is integrally formed with the U-shaped card block 1, and at least one convex rib 5 is provided. In this embodiment, there is one convex rib 5, which is located on the outer wall of the U-shaped card block 1 and close to the side of the protrusion 3; in other embodiments of the utility model, the convex rib 5 can be provided in 2 or 3, etc., which are spaced and distributed on the outer wall of the U-shaped card block 1. In this arrangement, in addition to increasing the structural strength of the unlocking buckle, it can also increase the contact area with the finger and increase the friction.

[0026] like Figure 2 As shown, the outer wall of the first arc segment 12 is provided with a connection block 6, and a connection hole 61 is opened on the connection block 6. A thin rope can be passed through the connection hole 61 and connected to the optical fiber connector body 4, and the unlocking buckle can be connected to the optical fiber connector body 4 through the thin rope to prevent the unlocking buckle from being lost and easy to keep.

[0027] When the unlocking buckle of the SC type self-locking optical fiber connector of the utility model is used, the staff presses the two sides of the unlocking buckle with their fingers, that is, presses the first section 11 and the second section 13 of the U-shaped block 1, and the fingers are conveniently pushed and pulled under the action of the convex rib 5, and the unlocking buckle is inserted along one end of the step 42 of the locking ring 41, and the U-shaped boss 2 contacts the step 42 on the locking ring 41, and the boss 3 is engaged with the groove 43 on the locking ring 41, and then the unlocking buckle is pushed toward the threaded sleeve direction of the optical fiber connector body 4, and the unlocking buckle drives the locking ring 41 to move, and further rotates the unlocking buckle counterclockwise and drives the locking ring 41 to rotate, thereby realizing quick unlocking, solving the problem of inconvenient unlocking of the optical fiber connector when used in a narrow space, and realizing efficient unlocking; the unlocking buckle has a simple and reliable structure, and the unlocking buckle as a whole can be quickly formed by 3D printing using PLA material. PLA is a degradable material and is more environmentally friendly to use.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An unlocking buckle for an SC type self-locking optical fiber connector, characterized in that: include: A U-shaped block (1), a U-shaped boss (2) arranged on the inner wall of the U-shaped block (1) and flush with one side, and a plurality of bosses (3) arranged at equal intervals on the inner wall of the U-shaped block (1) and flush with the other side, one end of the boss (3) being connected to the U-shaped boss (2), and the other end of the boss (3) being provided with a chamfer (31); The U-shaped boss (2) contacts a step (42) on a locking ring (41) of the optical fiber connector body (4), and the boss (3) is engaged with a groove (43) on the locking ring (41).

2. The unlocking buckle for the SC type self-locking optical fiber connector according to claim 1, characterized in that: A convex rib (5) is provided around one side of the outer wall of the U-shaped clamping block (1) close to the convex column (3).

3. The unlocking buckle for the SC type self-locking optical fiber connector according to claim 2, characterized in that: The convex rib (5) and the U-shaped clamping block (1) are integrally formed.

4. The unlocking buckle for the SC type self-locking optical fiber connector according to claim 2, characterized in that: At least one convex rib (5) is provided.

5. The unlocking buckle for the SC type self-locking optical fiber connector according to any one of claims 1 to 4, characterized in that: The U-shaped clamping block (1) comprises a first section (11), a first arc section (12) and a second section (13) which are connected in sequence, the first section (11) is parallel to the second section (13), a connecting block (6) is provided on the outer wall of the first arc section (12), and a connecting hole (61) is provided on the connecting block (6).

6. The unlocking buckle for the SC type self-locking optical fiber connector according to claim 5, characterized in that: The circumference of the U-shaped boss (2) is smaller than the circumference of the U-shaped block (1).

7. The unlocking buckle for the SC type self-locking optical fiber connector according to claim 6, characterized in that: The U-shaped boss (2) comprises a first straight segment (21), a second arc segment (22) and a second straight segment (23) which are connected in sequence, the first straight segment (21) being arranged on the inner wall of the first segment (11), the second arc segment (22) being arranged on the inner wall of the first arc segment (12), the second straight segment (23) being arranged on the inner wall of the second segment (13), and the length of the first straight segment (21) being smaller than the length of the first segment (11), and the length of the second straight segment (23) being smaller than the length of the second segment (13).

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