Quick plug connector

Abstract

The utility model relates to the technical field of optical fiber terminal box connecting parts, and provides a quick-plug connector, which comprises a main body section, an inner cavity, a connecting piece, a connecting piece, a connecting piece and a connecting piece, and is characterized in that the main body section is detachably connected with an adapter connector; and the connecting section sleeves the outer side of the optical cable, is in limiting connection with the optical cable, is used for fixing the optical cable, and is detachably connected with the main body section. Compared with the prior art, the shell of the quick-plug connector is designed to be composed of the main body section and the connecting section which are detachably connected, the connecting section is allowed to be installed on the outer side of the optical cable in advance, the second connecting terminal is contained in the inner cavity formed in the main body section, and quick matching between the quick-plug connector and the adapter is achieved. According to the method, the butt joint process of the optical cable and the optical fiber terminal box is simplified, the operation complexity is reduced, and the required time cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber terminal box connecting part technical field, specifically be a kind of fast plug. BACKGROUND

[0002] Optical fiber terminal box is installed on the wall user cable terminal equipment, its main function includes providing optical fiber and optical fiber fusion, optical fiber and tail fiber connection and optical connector plug-in operation, and provide mechanical protection and environmental protection to optical fiber and its assembly, while supporting necessary inspection and maintenance, ensure high standard optical fiber management.

[0003] Existing optical fiber terminal box usually includes shell, fusion disk (for fixed and protected optical fiber has fused) located inside and multiple adapter interfaces arranged at the top of shell. These adapter interfaces are fixed on the shell by screws or other means, allowing optical cable with matching fast plug-in connector to be easily inserted or pulled out, so as to realize the quick connection between optical cable and optical fiber terminal box.

[0004] However, in actual application, the types of adapter interfaces equipped by optical fiber terminal boxes produced by different manufacturers may differ, and the fast plug-in connector on optical cable is usually fixed, which may cause that the fast plug-in connector on optical cable cannot be directly compatible with a specific type of adapter interface in some cases. To solve this problem, it is sometimes necessary to replace the adapter interface on optical fiber terminal box or replace the fast plug-in connector at the end of optical cable to adapt to the new interface type. Both of these two solutions will increase the complexity and time cost of optical cable and optical fiber terminal box docking. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of fast plug-in connector to solve the technical problems of the prior art.

[0006] The technical scheme adopted by the utility model to solve the above technical problems is as follows: a fast plug-in connector is proposed, which is used to connect optical cable and adapter connector on optical fiber terminal box. The adapter connector is provided with a first connecting terminal, and one end of the optical cable is connected with a second connecting terminal. The second connecting terminal is inserted with the first connecting terminal. The fast plug-in connector comprises:

[0007] A main body section is configured to be detachably connected with the adapter connector, and the main body section is provided with an inner cavity.

[0008] A connecting section is sleeved on the outside of the optical cable and is limitingly connected with the optical cable, for fixing the optical cable. The connecting section and the main body section are detachably connected.

[0009] When the main body section and the connecting section are connected, the inner cavity accommodates the second connecting terminal.

[0010] When the main body section and the connecting section are separated, the inner cavity allows the second connecting terminal to be separated from the main body section.

[0011] In the quick connector, the connecting section comprises a middle section and a tail section with a screw structure, when the middle section and the tail section are screwed, the tail section extrudes the middle section, so that the middle section is tightly pressed against the optical cable, and the screw structure of the tail section is movably abutted against the outer side wall of the optical cable.

[0012] In the quick connector, a plurality of first abutting blocks are distributed along the direction of the center line of the connecting section at one end of the middle section towards the tail section, the tail section is provided with a first inclined surface movably abutting against the outer side wall of the first abutting blocks, and the first inclined surface is used to push the plurality of first abutting blocks to elastically deform towards the direction of the center line of the connecting section.

[0013] In the quick connector, the main body section comprises a main body sleeve and a first connecting sleeve, the first connecting sleeve is sleeved outside the main body sleeve and connected with the adapter connector.

[0014] In the quick connector, a first limiting part is arranged on the outer side wall of the main body sleeve, the first limiting part movably abuts against the first connecting sleeve, and is used to limit the first connecting sleeve between the first limiting part and the connecting section.

[0015] In the quick connector, a threaded section is arranged on the first connecting sleeve, and the threaded section is used to connect the main body section with the adapter connector.

[0016] In the quick connector, a first connecting protruding column is arranged in the first connecting sleeve, and the first connecting protruding column is used to movably connect the main body section with the adapter connector.

[0017] In the quick connector, an elastic buckle is arranged on the main body sleeve, and a clamping groove is arranged on the first connecting sleeve, and the buckle and the clamping groove are movably connected.

[0018] In the quick connector, a second protruding column is arranged outside the first connecting sleeve, and the second protruding column is used to movably connect the main body section with the adapter connector.

[0019] In the quick connector, a plurality of second abutting blocks are distributed along the circumference of the second connecting terminal at one side of the second connecting terminal towards the connecting section, a second connecting sleeve is screwed outside the second connecting terminal, a second inclined surface is arranged on the second connecting sleeve, the second inclined surface movably abuts against the second abutting blocks to push the second abutting blocks to tightly press against the outer side wall of the optical cable.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] (1) by the shell of the quick connector is designed to be composed of detachable connection main section and connecting section, allows the connecting section to be installed in advance on the outside of the optical cable, and the inner cavity arranged in the main section is used to accommodate the second connecting terminal, realizes the quick matching between the quick connector and the adapter. This method simplifies the process of optical cable and optical fiber terminal box butt joint, reduces the operation complexity, and reduces the required time cost;

[0022] (2) by setting the spiral structure in the tail section, which is in active abutment with the outer wall of the optical cable, for supporting the optical cable through the thread structure when the optical cable bears a smaller bending radius load, to prevent the optical cable from being damaged due to pressure, so as to ensure the structural integrity of the optical cable;

[0023] (3) the design of the first inclined plane and the plurality of first abutting blocks, for enabling the middle section to abut against the outer wall of the optical cable when the middle section and the tail section are connected, so as to realize the effective clamping of the middle section to the optical cable, which is designed to prevent the optical cable from being disconnected from the second connecting terminal when the end of the optical cable away from the quick connector is stressed. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a perspective view of one embodiment of the utility model quick connector;

[0025] Figure 2 is Figure 1 the plan view in the middle;

[0026] Figure 3 is Figure 2 the sectional view of A-A in

[0027] Figure 4 is Figure 1 the perspective view of the main section in

[0028] Figure 5 is a perspective view of another embodiment of the utility model quick connector;

[0029] Figure 6 is Figure 5 the partial sectional view of the main section in

[0030] Figure 7 is a perspective view of another embodiment of the utility model quick connector;

[0031] Figure 8 is Figure 7 the sectional view of the main section in

[0032] Figure 9 is the perspective view of the middle section;

[0033] Figure 10 It is a 3D view of the tail section;

[0034] Figure 11 A perspective view of the second connecting terminal.

[0035] In the figure, 1 is the second connecting terminal; 2 is the main body section; 3 is the connecting section; 4 is the middle section; 5 is the tail section; 6 is the first abutting block; 7 is the first inclined surface; 8 is the main body sleeve; 9 is the first connecting sleeve; 10 is the first limiting part; 11 is the threaded section; 12 is the first connecting protrusion; 13 is the elastic buckle; 14 is the slot; 15 is the second protrusion; 16 is the second abutting block; 17 is the second connecting sleeve; and 18 is the second inclined surface. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] like Figures 1 to 11 As shown, this utility model provides a quick-connect connector for connecting an optical cable and an adapter connector on an optical fiber terminal box. The adapter connector is provided with a first connection terminal, and one end of the optical cable is connected to a second connection terminal 1. The second connection terminal 1 is plugged into the first connection terminal. The quick-connect connector includes: a main body section 2 and a connecting section 3.

[0038] Specifically, the main body segment 2 is configured to be detachably connected to the adapter connector, and the main body segment 2 is provided with an inner cavity; the connecting segment 3 is sleeved on the outside of the optical cable and connected to the optical cable for fixing the optical cable, and the connecting segment 3 and the main body segment 2 are detachably connected; when the main body segment 2 and the connecting segment 3 are connected, the inner cavity accommodates the second connecting terminal 1; when the main body segment 2 and the connecting segment 3 are separated, the inner cavity allows the second connecting terminal 1 to be separated from the main body segment 2.

[0039] The detachable connection between the main body section 2 and the adapter connector is designed to securely install the quick-connect connector onto the fiber optic terminal box after the first and second connection terminals 1 are plugged in. This detachable connection can be achieved through threaded or snap-fit ​​methods. The internal cavity size of the main body section 2 is slightly larger than that of the second connection terminal 1, ensuring that it can accommodate both standard 5mm diameter round optical cables and common butterfly optical cables.

[0040] Before the plug-in of the quick plug connector and the adapter connector, the connecting section 3 should be first sleeved on the outside of the optical cable, and the optical fiber part of the optical cable is connected with the second connecting terminal 1. Next, the optical cable is fixed by the connecting section 3, and finally the main section 2 is sleeved on the outside of the second connecting terminal 1, and the connection between the main section 2 and the connecting section 3 is realized, so as to complete the overall assembly of the quick plug connector. If the adapter connector is incompatible with the assembled quick plug connector, since the main section 2 and the connecting section 3 are designed to be detachably connected, the two parts can be separated and a new main section 2 matched with the adapter connector is replaced to be reinstalled on the connecting section 3, so as to ensure the correct plug-in between the quick plug connector and the adapter connector.

[0041] The present scheme allows the connecting section 3 to be pre-installed on the outside of the optical cable by designing the shell of the quick plug connector to be composed of the detachably connected main section 2 and the connecting section 3, and the second connecting terminal 1 is accommodated in the inner cavity provided in the main section 2, so as to realize the quick matching between the quick plug connector and the adapter. This method simplifies the process of connecting the optical cable with the optical fiber terminal box, reduces the operation complexity, and reduces the required time cost.

[0042] The connecting section 3 includes a middle section 4 and a tail section 5 with a spiral structure, and the middle section 4 and the tail section 5 are threadedly connected. When the middle section 4 and the tail section 5 are threadedly connected, the tail section 5 extrudes the middle section 4, so that the middle section 4 abuts against the optical cable, and the spiral structure of the tail section 5 movably abuts against the outer side wall of the optical cable.

[0043] The threadedly connected mode between the middle section 4 and the tail section 5 can be as shown in Figure 3 The thread hole is provided on the tail section 5, and the external thread is provided on the middle section 4. Of course, it can also be designed in reverse, that is, the thread hole is provided on the middle section 4, and the external thread is provided on the tail section 5. The spiral structure on the tail section 5 is used to support the optical cable through the thread structure when the optical cable bears a load with a small bending radius, so as to prevent the optical cable from being damaged due to pressure, thereby ensuring the structural integrity of the optical cable.

[0044] The end of the middle section 4 towards the tail section 5 is spaced apart along the center line direction of the connecting section 3 and has a plurality of first abutting blocks 6, and the tail section 5 is provided with a first inclined surface 7 movably abutting against the outer side wall of the first abutting block 6. The first inclined surface 7 is used to push the plurality of first abutting blocks 6 to elastically deform towards the center line direction of the connecting section 3.

[0045] The design of the first inclined surface 7 and the plurality of first abutting blocks 6 is used to enable the middle section 4 to abut against the outer side wall of the optical cable when the middle section 4 and the tail section 5 are connected, so as to realize the effective clamping of the optical cable by the middle section 4. This design aims to prevent the optical cable from being disconnected from the second connecting terminal 1 when the end of the optical cable away from the quick plug connector is stressed.

[0046] The main body section 2 comprises a main body sleeve 8 and a first connecting sleeve 9, the first connecting sleeve 9 is sleeved outside the main body sleeve 8 and connected with the adapter joint.

[0047] The main body sleeve 8 is sleeved outside the second connecting terminal 1, so as to provide protection for the second connecting terminal 1 without hindering the plug-in of the second connecting terminal 1 and the first connecting terminal, the second connecting sleeve 17 is connected with the adapter joint, so as to realize the fixation between the quick plug-in joint and the optical fiber terminal box.

[0048] The outer wall of the main body sleeve 8 is provided with a first limiting part 10, the first limiting part 10 movably abuts against the first connecting sleeve 9, so as to limit the first connecting sleeve 9 between the first limiting part 10 and the connecting section 3.

[0049] Referring to Figure 3 and Figure 4 In one embodiment, the first limiting part 10 can be an annular structure arranged around the main body sleeve 8, which movably abuts against the end of the first connecting sleeve 9. Figure 6 In another embodiment, the first limiting part 10 can also be a combination of an arc-shaped structure and a convex column. In this case, the first connecting sleeve 9 is provided with a second limiting part, which movably abuts against the first limiting part 10, so as to limit the first connecting sleeve 9 between the main body sleeve 8 and the connecting section 3.

[0050] Referring to Figure 4 In one embodiment, the first connecting sleeve 9 is provided with a threaded section 11, which is used for connecting the main body section 2 with the adapter joint.

[0051] After the plug-in of the second connecting terminal 1 and the first connecting terminal, the first connecting sleeve 9 is inserted into the adapter joint and rotated. Through the cooperation between the threaded section 11 on the first connecting sleeve 9 and the threaded hole previously arranged inside the adapter joint, the fixation between the quick detachable joint and the adapter joint is realized.

[0052] Referring to Figure 6 In another embodiment, the first connecting sleeve 9 is provided with a first connecting convex column 12, which is used for movably clamping the main body section 2 with the adapter joint.

[0053] After the plug-in of the second connecting terminal 1 and the first connecting terminal, the first connecting sleeve 9 is inserted into the adapter joint. Through the cooperation between the first connecting convex column 12 arranged inside the first connecting sleeve 9 and the insertion hole or slot previously arranged on the adapter joint, the fixation between the quick detachable joint and the adapter joint is realized.

[0054] Referring to Figure 8In still another embodiment, the main sleeve 8 and the first connecting sleeve 9 are snap-connected, that is, the main sleeve 8 is provided with elastic snaps 13, and the first connecting sleeve 9 is provided with snap slots 14, and the snaps are movably connected with the snap slots 14.

[0055] Referring to Figure 7 The outer side of the first connecting sleeve 9 is provided with a second protruding column 15, which is used for movably connecting the main section 2 with the adapter connector.

[0056] After the second connecting terminal 1 and the first connecting terminal are plugged, the first connecting sleeve 9 is inserted into the adapter connector. The second connecting protruding column provided on the outer side of the first connecting sleeve 9 is matched with the pre-provided insertion hole or slot on the adapter connector, so as to realize the fixation between the quick release connector and the adapter connector.

[0057] The side of the second connecting terminal 1 facing the connecting section 3 is provided with a plurality of second abutting blocks 16 along the circumference of the second connecting terminal 1, and the outer side of the second connecting terminal 1 is screw-connected with a second connecting sleeve 17, which is provided with a second inclined surface 18 movably abutting against the second abutting blocks 16 to push the second abutting blocks 16 to abut against the outer side wall of the optical cable.

[0058] After the optical fiber on the optical cable and the second connecting terminal 1 are connected, the second connecting sleeve 17 is rotated, so that the second inclined surface 18 provided on the second connecting sleeve 17 promotes the plurality of second abutting blocks 16 to abut against each other and the optical cable, and the clamping force of the quick plug connector on the optical cable is increased, so that the optical cable connected with the second connecting terminal 1 can meet the tension requirement.

[0059] Preferably, in the present scheme, sealing rings are provided between the main sleeve 8 and the connecting sleeve, the outer side of the main sleeve 8, and between the middle section 4 and the main section 2, so as to enhance the waterproof performance of the quick release connector.

[0060] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0061] In addition, the description of “first”, “second”, “one”, etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “a plurality of” is at least two, such as two, three, etc., unless otherwise specifically limited.

[0062] In the utility model, unless another definite provision and limitation, the term "connect", "fix" and so on should do the broad sense understanding, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements internal communication or two element's mutual action relation, unless another definite limitation.For the ordinary skill in the art, the above-mentioned term can be understood according to the specific meaning in the utility model.

[0063] In addition, the technical solutions of various embodiments of the utility model can be combined with each other, but must be based on the implementation of the ordinary skill in the art, when the combination of technical solutions appears contradictory or cannot be implemented, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0064] The specific embodiments described herein are merely illustrative of the spirit of the utility model. The person skilled in the art of the utility model can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the range defined by the spirit of the utility model.

Claims

1. A quick connector for connecting an optical cable to an adapter connector on an optical fiber terminal box, the adapter connector having a first connecting terminal provided thereon, and the optical cable having a second connecting terminal connected to one end thereof, the second connecting terminal being inserted into the first connecting terminal, characterized in that, The quick connector comprises: a main body section configured to be detachably connected with the adapter connector, the main body section being provided with an inner cavity; a connecting section sleeved outside the optical cable and being in position connection with the optical cable, for fixing the optical cable, the connecting section and the main body section being detachably connected; when the main body section and the connecting section are connected, the inner cavity accommodates the second connecting terminal; when the main body section and the connecting section are separated, the inner cavity allows the second connecting terminal to be separated from the main body section.

2. A quick connector as claimed in claim 1, wherein, The connecting section comprises a middle section and a tail section with a spiral structure, when the middle section and the tail section are threadedly connected, the tail section extrudes the middle section, so that the middle section is tightly pressed against the optical cable, and the spiral structure of the tail section is in active abutment with the outer sidewall of the optical cable.

3. A quick connector as claimed in claim 2, wherein the sleeve is formed of a material having a Shore A hardness of 60 to 90. The middle section is spaced apart from the end of the tail section along the center line direction of the connecting section, and a plurality of first abutting blocks are arranged on the end of the tail section, the first abutting blocks are in active abutment with the outer sidewall of the first abutting blocks, and the first abutting blocks are used to push a plurality of the first abutting blocks to elastically deform in the center line direction of the connecting section. ​ 4. A quick disconnect coupling as defined in claim 1, wherein, The main body section comprises a main body sleeve and a first connecting sleeve, the first connecting sleeve is sleeved outside the main body sleeve and connected with the adapter connector.

5. A quick connector as claimed in claim 4, wherein the sleeve is formed of a material which is more flexible than the material of the connector body. The outer sidewall of the main body sleeve is provided with a first limiting portion, the first limiting portion is in active abutment with the first connecting sleeve, and the first limiting portion is used to limit the first connecting sleeve between the first limiting portion and the connecting section.

6. A quick connect coupling as defined in claim 4 wherein, The first connecting sleeve is provided with a threaded section, the threaded section is used for connecting the main body section with the adapter connector.

7. A quick connect coupling as defined in claim 4 wherein, The first connecting sleeve is provided with a first connecting protruding column, the first connecting protruding column is used for active clamping of the main body section and the adapter connector.

8. A quick connect coupling as defined in claim 4 wherein, The main body sleeve is provided with an elastic buckle, the first connecting sleeve is provided with a clamping groove, and the buckle is in active clamping with the clamping groove.

9. A quick connect coupling as claimed in claim 8, wherein, The outer side of the first connecting sleeve is provided with a second protruding column, the second protruding column is used for active clamping of the main body section and the adapter connector.

10. A quick connect coupling as defined in claim 1, wherein, The second connecting terminal is spaced apart from the side of the connecting section along the circumferential direction of the second connecting terminal, and a plurality of second abutting blocks are arranged on the side of the connecting section, the second connecting terminal is threadedly connected with a second connecting sleeve outside, the second connecting sleeve is provided with a second inclined surface, the second inclined surface is in active abutment with the second abutting blocks, and the second inclined surface is used to push the second abutting blocks to tightly press against the outer sidewall of the optical cable.

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